Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Experimental document detailing the coil for battery ignition for the 'Goshawk' II engine. | ||
| View original record | X.3485 XHO79a C. to EFC. EXPERIMENTAL BY/WER7/EF15. 8. 21. X. 3485 - "GOSHAWK" II. COIL FOR BATTERY IGNITION. In connection with the above Unit please receive herewith two photostats of D.50210… | ||
| Scan002 | Test results of standard and U.S.A. Bosch ignition coils. | ||
| View original record | X. 4079 25.10.21. X.3445. X.4079 TEST RESULTS OF STD & U.S.A. BOSCH IGNITION COILS. X.4275. PRIMARY SECONDARY Coil. Resis. Imped. at Reac. at Induc. Resis. Imp. at Reac. at Induc. Remarks. (W) 50 (W).… | ||
| Scan003 | Extract discussing ignition coil winding and contact pressure for the Goshawk II engine. | ||
| View original record | Y4079a Extract from------ R7/M30.12.21. GOSHAWK II. X.4079 With regard to Mr. Hives' suggestion that we may want to wind a coil specially for the Goshawk since it runs on the average at a higher speed… | ||
| Scan004 | Requesting the creation of three more B-type coils for experimental work on the 'Goshawk' battery ignition. | ||
| View original record | To By. from EFC. c. By/WER. c. Mr. Brock. c. RHC. (X4079a) EFC2/T9.1.22. X.3485 - "GOSHAWK" BATTERY IGNITION - B TYPE COILS X4079 You may remember that when we were considering the aero battery… | ||
| Scan005 | Experimental specification for 'B' type coils for battery ignition on the 'Goshawk' 11 engine. | ||
| View original record | X. 4079a BY/WER2/EF16. 1. 22. STAMP: RECEIVED HANDWRITTEN: RHO. C. to Sft. II B.Sc. W.S. H.S. BROCK. JAN 18 1922 STAMP: EXPERIMENTAL X. 4079 "GOSHAWK" 11. COIL FOR BATTERY IGNITION. "B" TYPE COILS.… | ||
| Scan006 | Change in wire gauge for the secondary winding of 'Goshawk' 11 coils. | ||
| View original record | RHC. c. to Sft. TP. EFC. Wd. Mr. Brook X 4079 a BY/WER5/EF27. 1. 22. EXPERIMENTAL X. 4079c - "GOSHAWK" 11. COIL FOR BATTERY IGNITION "B" TYPE COILS. It is now suggested that we should wind the… | ||
| Scan007 | The production of the 'Goshawk' 11 Coil for battery ignition, detailing wire specifications and winding instructions. | ||
| View original record | H.R. 235c (10 T) (S.J 194.9.6.21). x2079a RECEIVED 8 FEB 1922 EFC BY/WER11/EF9. 2. 22. "GOSHAWK" 11. COIL FOR BATTERY IGNITION SECTION 8140. We have released the above unit for production less the… | ||
| Scan008 | Experimental specifications for the 'Goshawk' 11 'B' Type ignition coil, detailing changes to winding wire for improved insulation. | ||
| View original record | RMC. C. to Sft. Sft. EFC. Sft. for Mr. Brock W.C. X.4079a EXPERIMENTAL BY/WER9/HF28. 2. 22. X. 4079c - "GOSHAWK" 11. COIL FOR BATTERY IGNITION "B" TYPE. The works have recently had an odd coil or two… | ||
| Scan009 | Experimental modifications to the 'Goshawk' 11 Coil for Battery Ignition 'B' Type, regarding changes to the insulation paper. | ||
| View original record | R.R. 189 (880 H) (BD. 296. 15.9.17) M.P. 176549. WHC. c. to Sft. EFC. XH4079a BY/WER2/EF3. 3. 22. EXPERIMENTAL X. 4079:- "GOSHAWK" 11. COIL FOR BATTERY IGNITION "B" TYPE Our memo BY/WER9/EF2B. 2. 22… | ||
| Scan010 | The specifications of a special B coil with condenser paper insulation. | ||
| View original record | X.4079.a EFC. 9.3.21. Herewith special B coil built up with Condenser paper insulation, and 23,000 secondary turns. RHC. | ||
| Scan011 | Test report for Goshawk Ignition Coils, detailing various electrical measurements. | ||
| View original record | X.3604cl. GOSHAWK IGNITION COILS. X.4079. Coil Number. | (1) Secondary continuity | (2) Secondary milli-amps. | (4) @ C.S. Test. | (5) Running current (amps). | Amperes. | Volts. | Ohms. | Remarks.… | ||
| Scan012 | Experimental bench tests and manufacturing instructions for Goshawk battery ignition coils. | ||
| View original record | To By. from EFC. c. By/WER. c. Mr. Brock. X4079.a EFC1/T15.3.22. X.4079 - GOSHAWK BATTERY IGNITION COILS. We are satisfied from experimental bench tests of one of the coils received, made up to… | ||
| Scan013 | To Mr. Clark regarding the submission of 8 'B type' coils for testing. | ||
| View original record | X.4079.a 30.3.22. Mr. Clark. Please accept 8 B type coils for testing to the following No. S.B.5 S.B. 7 X.B.9 S.B.6 S.H. 8 S.B.10 S.B.11 S.B.12 and oblige. 'Sgd' W. Gamble. | ||
| Scan014 | The failures of a High Tension Rotor and a Coil for the Goshawk II engine. | ||
| View original record | X4079a Extract from EP2/LG25.4.22. RE GOSHAWK II. X.4357. HIGH TENSION ROTOR Hy. reports this has failed on 5-Gos.II. A stronger type is in hand. Is it considered that this is satisfactory ? X.4079.… | ||
| Scan015 | The dispatch of one coil for a Goshawk-II engine to Mr. Swift. | ||
| View original record | X4079a Mr. Pope Shipping Office. from Hs. c. to Stores. Hs6/LG10.7.22. We are sending into the Stores - 1 Coil for 1-Goshawk-II engine. Will you please have this despatched to :- Mr. Swift, C/o Mrs.… | ||
| Scan016 | Letter to Mr. Swift confirming the dispatch of one coil for a Goshawk engine by post. | ||
| View original record | V4079a Expl: Office, Messrs. Rolls-Royce Ltd., Nightingale Rd., Derby. 10th. July 1922. Mr. Swift, C/O Mrs. Carter, Wilton Lodge, Florence Rd., Boscombe. Dear Mr. Swift, We have sent off to you today… | ||
| Scan017 | Urgent telegram reporting a part failure and requesting an immediate replacement. | ||
| View original record | Office of Origin: Boscombe To: Hives - Rolls Royce Derby Message: boil failed. send another please urgent Sender: Swift | ||
| Scan018 | EFC to EP requesting the return of a B ignition coil for experimental analysis. | ||
| View original record | X 4079 a To EP. from EFC. EFC4/TS.8.3.22. X.4079.- RE B IGNITION COIL+ We should be glad if you would let us have back for experimental purposes the one of the two original B coils, which we handed to… | ||
| Scan019 | Availability of an ignition coil for inspection and testing. | ||
| View original record | X4079 a EFC. EP/Thn5/Hl1.9.22. X.4079.a Re.B. Ignition Coil. With reference to your memo EFC4/T8.9.22, we have only one of these Coils which is in constant use. We understand that you have one of… | ||
| Scan020 | Instruction sheet detailing the testing of a faulty production coil. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 X. 4079a ROLLS-ROYCE LIMITED. INSTRUCTIONS. To E.F.C. Order No P.B.48 Customer's No. X 4079a Date Sept 11th 1922 Test of Production Coil G.G. 9. This… | ||
| Scan021 | Test results for coils with standard and production ballasts. | ||
| View original record | RR. 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To E.F.C. Order No: P.B. 48 Customer's No. X 40790 With Standard Ballast. Coil | Speed | Volts | Amps. | Max Gap. B |… | ||
| Scan022 | Test report on the inductance and resonance of X4079 B coils. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: EFE Order No: H13.52 Customer's No: 1 X. 4079a 12 Sept 1922 x 4079 B Coils on Resonance. In order to check the… | ||
| Scan023 | Instructions detailing the electrical properties of an Ignition Coil B2. | ||
| View original record | R.R. 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 X.4079a ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: EFC Order No: AB53 Customer's No.: 1 13 Sept 1922 x 4079 Ignition Coil B2 Quantities. Primary… | ||
| Scan024 | Comparison of two B coils, testing for spark length, high-speed sparking, and insulation. | ||
| View original record | EFC. PB.52. X4079 Sept. 14th. 1922. X.4079" - COMPARISON OF B COILS Of the two B coils we now have, the one recently obtained, by comparison with our experimental coil on spark length, sparking at… | ||
| Scan025 | Test results for the electrical properties of coils GB6 and GB11. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. X.4079a To: EFC Order No: AB 54 Customer's No.: 1 Date: 15-Sept-1922 X 4079 Quantities of Coils GB6 + GB11. Primary |… | ||
| Scan026 | Test results of standard and U.S.A. Bosch ignition coils. | ||
| View original record | X.4079 15.9.22. X.3445. X.4079. X.4275. TEST RESULTS OF STD. & U.S.A. BOSCH IGNITION COILS | Coil. | PRIMARY | | | | SECONDARY | | | | Remarks. | |---|---:|---:|---:|---:|---:|---:|---:|---:|---| | |… | ||
| Scan027 | Requesting the return of a loaned B Ignition Coil needed as a standard of comparison. | ||
| View original record | To EP. from EFC. X 4079a EFC1/T12.9.22. X.4079a - RE B IGNITION COIL With reference to your EP/Thn5/Hll.9.22, we know you have only one of these coils and it is for this which we ask. We explained in… | ||
| Scan028 | Particulars of an Experimental B type coil. | ||
| View original record | X.4079. 19.9.22. Mr. Clark. Expl. Dept. Please accept particulars of Exp. B type coil: No. of turns on primary 295 No. of turns on Secondary 21560 The core is built up of thicker soft iron wire Dia.… | ||
| Scan029 | Instruction sheet detailing the test results of a production coil, number 17. | ||
| View original record | RR 238 (300 Bks.) (SF 152.6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E.F.C. Order No: P.B. 55 Customer's No. X 4079 Test of Production Coil No. 17. This coil, as with the previous one… | ||
| Scan030 | Weak Goshawk production coil being improved by paraffin wax impregnation. | ||
| View original record | X.4079.a EFC/T29.9.22. X.4079 - GOSHAWK PRODUCTION COIL No.17. This was returned to us by Mr. Archer for test, because of being weak. After finding that this did not comply with our specification of… | ||
| Scan031 | The trial of an ignition coil impregnated with paraffin wax on experimental Goshawk cars. | ||
| View original record | X. 4079a To RHC. from EFC. EFCl/T.2.10.22. X.4079- IGNITION COIL IMPREGNATED WITH PARAFFIN WAX We are handing you herewith an ignition coil, the performance of which has been improved by impregnating… | ||
| Scan032 | Test results for a paraffin wax-impregnated Goshawk winding coil, comparing performance before and after treatment. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 X. 4079a ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E.F.C Order No: P.B. 56 Date: Oct 3rd 1922 Customer's No.: X 4079a Test of Coil X.1. This coil which is… | ||
| Scan033 | Goshawk II battery ignition failure due to a faulty coil. | ||
| View original record | [Handwritten: X4079a] BY. c. HSY c. EFC. c. BFT. EP9/H5.10.22. [Handwritten: X 4079] re. GOSHAWK II. BATTERY IGNITION FAILURE. [Handwritten: Y 3465] Of the 20 Goshawk cars now coming through on test… | ||
| Scan034 | Modifications to the Goshawk 11 ignition coil to eliminate recent trouble. | ||
| View original record | X-4079.a Mr. Brock c. D Dept. c. EFC. c. Hs. c. HK. BY17-P5.10.22. X.4079.a GOSHAWK 11. IGNITION COIL. V3485 With reference to the three or four coils with which we have had some trouble recently, in… | ||
| Scan035 | Fitting of a paraffin wax impregnated coil to chassis 6 EX. | ||
| View original record | X.4079.a 11.10.22. EFC. Please note. X.4079. Coil X.2 impregnated in Paraffin wax has been fitted to 40/50 chassis 6 EX, RHC. | ||
| Scan036 | Testing of a new Goshawk ignition coil design and the performance of faulty production coils. | ||
| View original record | X4079a To Ry. from EFC. " EP. " Mr. Brock. " Ds. EFC1/T13.10.22. X.4079. GOSHAWK IGNITION COIL. With reference to your Ry17/P5.10.22, two coils designated SG1 and SG2 have been made up by the Elec.… | ||
| Scan037 | Instruction sheet detailing the testing of coils with increased insulation. | ||
| View original record | RR. 258 (500 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E.F.C Order No: P.B.58 Customer's No.: X4079a Test of Coils With Increased Insulation Two coils, SG1 and SG2,… | ||
| Scan038 | Instruction sheet detailing test results and analysis of various ignition coils, comparing SG and Goshawk types. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E.F.C. Order No: PB58 2. Customer's No. X 4079 Oct. 12th 1922 [Table of Test Results] Tests. Coil | 1. | 2. | 3. |… | ||
| Scan039 | Instructions comparing the sparking performance and order of merit for different Goshawk coils. | ||
| View original record | RR. 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. 3. Oct 12th 1922 To E.F.C. Order No P.B. 58 Customer's No. X 4079 sparking performance of the coil; it will also make… | ||
| Scan040 | Instructions and report on the testing of faulty production coils, Nos. 16 and 18. | ||
| View original record | ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E.F.C. Order No: P.B.59 Customer's No. X4079 Test of Production Coils Nos 16 and 18 These coils were received from the test department 5.10.22 as faulty. When… | ||
| Scan041 | Instructions regarding the testing of production coils and the return of specific units. | ||
| View original record | RR.238.(300 Bks.) (SF 152. 6. 11. 18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E.F.C. 2. Date: Oct. 12th 1922 Order No: P.B. 59 Customer's No: X 4079. average production coil; regular… | ||
| Scan042 | Telegram concerning Goshawk engine ignition coil experiments. | ||
| View original record | XH079a TELEGRAM 'PHONED THROUGH FROM CHICHESTER. HANDED IN AT DERBY 11.9 a.m. TO HIVES. C/O ROYCE. WEST WITTERING. GOSHAWK IGNITION CHASSIS EXPERIMENT INDICATE INSUFFICIENT POWER OF COIL IN VIEW OF… | ||
| Scan043 | Requesting the acceptance of four 40/50 type spark coils fitted in a Goshawk case for use in Mr. Archer's Department. | ||
| View original record | EFC. Expl. Dept. X.4079.a 28.10.22. X.3445. X.4079 a Please accept four spark coils F.7153 40/50 type fitted in Goshawk case for use in Mr. Archer's Dept. Coils marked on bottom of case. W. Gamble. | ||
| Scan044 | Production test procedure for Goshawk ignition coils without the use of a jig. | ||
| View original record | Y4079 28.10.22. X.3604cl. PRODUCTION TEST OF GOSHAWK IGNITION COILS. X.4079. (Without use of Jig). (1) Continuity of primary and secondary circuits shall be tested by applying an approx. A.C. voltage… | ||
| Scan045 | Page of test procedures for an electrical component, specifying current, voltage, and spark gap settings. | ||
| View original record | -2- Contd. ammeter and contact breaker, just permits the passage of 1.00 ampere when the contacts are closed. The make ratio of the distributor can then be set by adjusting and locking the platinum… | ||
| Scan046 | Investigating elusive battery ignition misfires on production Goshawk chassis under warm engine conditions. | ||
| View original record | To R & E. from EFC. c. CJ. & FN. c. Ry c. EP. c. Da. x4079 a EFC/T28.10.28. RE BATTERY IGNITION ON GOSHAWK. We have experienced on one or two of the first 20 production Goshawk chassis ignition… | ||
| Scan047 | Performance issues and modifications made to Goshawk ignition coils, including paraffin waxing and adding insulation. | ||
| View original record | Contd. -2- EFCl/T28.10.22. production tests as they had already previously received on the bench, their performance was found to be poorer and not again to comply with the performance specification.… | ||
| Scan048 | Ignition coil performance, discussing issues with spark retard and ballast resistance. | ||
| View original record | EFCl/T28.10.22. -3- Contd. retarded spark. With these improved coils, the phenomenon is not produceable with the spark advanced, but is more or less easily produceable with the spark more retarded… | ||
| Scan049 | Continued report on ignition coil performance, dynamo output, and ballast resistance. | ||
| View original record | EFCL/T28.10.22. -4- Contd. output available from the dynamo as compared with the 40/50. We do not mean that the reduction in the ballast resistance does not effect an improvement - there is a… | ||
| Scan050 | Ignition coil experiments, investigating ballast amounts and secondary turn configurations for the Goshawk engine. | ||
| View original record | Contd. -5- EFC1/T28.10.22. in addition to their own, but it was found that with the amount of ballast which was judged in the first instance to be suitable, the phenomenon could be reproduced. It was… | ||
| Scan051 | Trial and comparison of various ignition coils, including Goshawk and 40/50 types, with different turns and ballast resistances. | ||
| View original record | EFC1/T28.10.22. -6- Contd. that the reduction in the number of secondary turns was not desirable. In this case, however, this particular coil with a ballast resistance of 15" (as against 50" which… | ||
| Scan052 | Experiments with Goshawk engine ignition coils, discussing their performance, efficiency, and potential for misfiring. | ||
| View original record | EFC/T28.10.28. -7- Contd. having been experienced with two coils. With 32" of ballast they are not immune. The Goshawk coils on the other hand are not immune. with the 10" ballast. The actual current… | ||
| Scan053 | Ignition coil improvements and testing for the Goshawk chassis, comparing different coil constructions. | ||
| View original record | EFC1/T28.10.28. -8- Contd. In perhaps 9 Goshawk chassis out of 10, driven in the ordinary way, it seems possible that the failure of the nature described would never occur. On the other hand it seems… | ||
| Scan054 | Transfer of four F.7153 40/50 type spark coils in a Goshawk case for Mr. Archer's department. | ||
| View original record | X.4079.a X.4079 X.3445. Mr. Clark. Please accept four spark coils F.7153 40/50 type fitted in Goshawk case for use in Mr. Archer's Dept. (sgd) W. Gamble. Coils marked on bottom of case. | ||
| Scan055 | Extract from Mr Archer's report regarding tests on coil and ballast configurations. | ||
| View original record | Extract from Mr Archer's report on the way to London. X.4079.a 30.10.22. On my way down I tried the coil with the 18,000 turns and with the 20" ballast. This is quite O.K. With the 32" ballast… | ||
| Scan056 | Ignition failure in a Goshawk 11 engine, attributing the cause to coil overheating. | ||
| View original record | R.R. (SD676 19-7-17) M.P.18:865 UW 4079 EFC. BY1-P6.11.22. X 6079 IGNITION FAILURE - GOSHAWK 11. As reported verbally I experienced one of the failures previously reported upon by EP, and as the… | ||
| Scan057 | Engine performance and a proposed remedy for an overheating coil by redesigning its dimensions. | ||
| View original record | Byl-P6.11.22. contd. - 2 - a/- I kept the jacket water temperature generally too low, 50° - 60°. b/- Engine was less hardly pressed, due to light open body. (2) Remedy. I think the design of our coil… | ||
| Scan058 | Telegram confirmation regarding Goshawk ignition problems and suggested material solutions. | ||
| View original record | R.R. 235a (100 T) (S.H. 798. 10-12-20) G. 2948 QYC x4079a CONFIRMATION OF TELEGRAM. WEST WITTERING. 9th Nov. 1922. ROYCAR. DERBY. X3485 x4079a CLARKE - GOSHAWK IGNITION. SUGGESTED TO HIVES… | ||
| Scan059 | The unsatisfactory Bakelite case for the Goshawk 11 ignition coil, recommending a change of material. | ||
| View original record | R.R. 199 (R)T) (SD676 19-7-17) M148086 X.4079 a EFC. Hs. Wd. C. U. Dept. BY6-P9.11.22. X. 4273. X. 4079 GOSHAWK 11. IGNITION COIL. It is quite evident from the facts of the case so far arrived at that… | ||
| Scan060 | Battery ignition faults on the Goshawk chassis traced to the electrical properties of the bakelite coil case material at high temperatures. | ||
| View original record | X4079a To R & E. from EFC. EFCL/T9.11.22. c. C.J. & PN. c. Hy. & EP. c. Rg. & Ds. c. Hor. for Mr. Brock. X.3485 - BATTERY IGNITION ON GOSHAWK. X4079a Further to our EFCL/T28.10.22, a further… | ||
| Scan061 | Analysis of experiments on coil cases, identifying dielectric hysteresis loss as the cause of weakening effects. | ||
| View original record | Contd. -2- EFC1/T9.11.22. (1) Various standard Goshawk coils in standard bakelite (Elo) cases. (2) Other makes of coils. (3) Goshawk coils improved as regards secondary insulation but with varying… | ||
| Scan062 | Ignition coil testing, focusing on the weakness of bakelite (Elo) cases and electrical shock phenomena. | ||
| View original record | -3- Contd. The various coils that have been tried on chassis differ slightly from one to another, but in all so long as they are in their Elo cases, the effect is produceable by running the engine so… | ||
| Scan063 | Experiments on reducing dielectric loss in coils by improving insulation materials and design. | ||
| View original record | -4- EFCL/T9.11.22. dielectric loss. This applies more particularly to the Elo cases which have so far been standard. It is anticipated that we may effect an improvement either with American bakelite… | ||
| Scan064 | Analysis of an electrical effect observed when touching ignition coil cases made of different materials like bakelite and mouldensite. | ||
| View original record | EFC1/T9.11.22. -5- Contd. arranged by U.S.A. suitable for the 40/50. It was also noticed that on the coil on the Marmon car which is made up in a bakelite case the phenomenon did not appear to exist,… | ||
| Scan065 | Analysis of DC leakage and insulation performance in a coil, particularly the effects of temperature on bakelite. | ||
| View original record | Contd. -6- PCL/T9.11.22. We have found by bench experiments that there is a slight D.C. leakage (insulation resistance of the order of half a megohm) between tin foils placed on the inside and outside… | ||
| Scan066 | Coil failure analysis, discussing insulating materials to prevent issues from electrostatic potential. | ||
| View original record | -7- Contd. EFCL/T9.11.32. a considerable drop of electrostatic potential between the outer layers of the secondary and the bakelite case itself, so that the bakelite case would not be subjected to the… | ||
| Scan067 | Ignition coil experiments, comparing different turn counts and insulation materials like bakelite and asbestos. | ||
| View original record | Contd. -8- EFC1/T9.11.22. unwise to go below 18000. We did, however, have an 18000 turn 40/50 coil on chassis 8-EX during the 10,000 mile test and it may be considered that such a coil is satisfactory… | ||
| Scan068 | Notes on further experiments testing various ignition coil materials and constructions. | ||
| View original record | EFC3/T9.11.22. ADDITIONAL NOTES AS A RESULT OF FURTHER EXPERIMENTS. (1) Asbestos filled elo material is no better, but possible worse. (2) It is not considered that the fault is due to the filling… | ||
| Scan069 | The failure of a coil and planned tests for alternative arrangements in stabalite and bakelite cases. | ||
| View original record | -2- Contd. Inside of the case has now been performed. The coil only operated for half an hour and then failed, ~~satisfactorily~~. (7) Steps are immediately being taken to put through short circuited… | ||
| Scan070 | Telegram about issues with a Goshawk battery ignition system, specifically the bakelite coil box. | ||
| View original record | X4079a TO:- R. from EFC. c. CJ. c. Wor for Mr. Brock. EFC2/T9.11.22. X.3485 - GOSHAWK BATTERY IGNITION. X4079a Your telegram reading :- "CLARK GOSHAWK IGNITION STOP SUGGESTED TO HIVES EXPERIMENTALLY… | ||
| Scan071 | Experiments with different filler materials for coil cases, including wood, asbestos, and bakelite. | ||
| View original record | Contd. -2- EFC2/T9.11.22. Regarding your suggestion of mahogany or teak wood dust, the makers have previously informed us that only one or two very special kinds of wood can be used as filler. At… | ||
| Scan072 | The insulating properties of bakelite in a Goshawk coil and proposals for testing. | ||
| View original record | R.R. 199 (50T) (SD576 19-7-17) M/1806 X4079a To EFC. from R. R2/M10.11.22. X. 3485 - GOSHAWK COIL. X.4079.a It was quite unsuspected, if you find as anticipated that the insulating properties of… | ||
| Scan073 | Electrostatic and dielectric losses in the Goshawk ignition coil and the choice of casing materials. | ||
| View original record | To EFC. from R. COPY RL/M11.11.22. X.4079 - GOSHAWK IGNITION COIL. X.3513. You seem right in assuming that it is not simple electric leakage due to the material of the case, and evidently your views… | ||
| Scan074 | Suitable insulation materials for an electrical coil, comparing options like stabalite and bakelite. | ||
| View original record | Contd. -2- Would you please let us know what material you think could best be used in which the phenomenon found would be least likely to occur. Apparently the smaller the amount of any known material… | ||
| Scan075 | Analysis of potential ignition failures, suggesting changes to sparking plugs and coil insulation. | ||
| View original record | Contd. -3- To EFC from n. compression pressure in this smaller engine is higher than in the 40/50. It is possible however that owing to a heated or oxidized condition of the sparking plug points, the… | ||
| Scan076 | Goshawk and other battery ignitions, detailing suggestions to avoid circuit losses. | ||
| View original record | To EFC. from R. c. CJ. Wor. PN. c. By. Hs. EP. X40790 R1/M13.11.22. X.3485. GOSHAWK AND OTHER BATTERY IGNITIONS X4079 The phenomenon found in the Goshawk suggests additional care and tests of… | ||
| Scan077 | Testing materials for condensers, ignition failures, and potential modifications to reduce energy loss. | ||
| View original record | .Contd. -2- Rl/A (7) Can you test a number of suitable materials probably with a high alternating electromotive force perhaps made into a condenser form so as to find their relative values under… | ||
| Scan078 | Continued letter discussing experimental coils, requesting Stabalite coils for the Goshawk engine, and defining test parameters. | ||
| View original record | Contd. -3- other dielectric actions, as we have a lot of metal work in contact with the bakelite, including the iron core, the holding down bolts, and the L.T. circuit. Mr. Elliott is preparing a… | ||
| Scan079 | Bench tests on Goshawk ignition coil cases and outlining further experiments for insulation. | ||
| View original record | To R & E. from EFC. c. CJ. & PN. c. Ey. c. EP. c. RG. & De. X4079a EFC4/T14.11.22. X.4079 - BENCH TESTS ON GOSHAWK IGNITION COIL CASES. Please find attached copy of my assistant's report on details of… | ||
| Scan080 | Tests conducted on Goshawk ignition coil cases to investigate electrostatic and leakage effects. | ||
| View original record | 14079a EFC. 59. 13th Nov. 1922. X.4079 - TESTS ON GOSHAWK IGNITION COIL CASES. X.3513. G In connection with the recent troubles experienced on the Goshawk ignition, some tests were made on various… | ||
| Scan081 | Continuation of a report on electrical tests of leakage resistance and spark length in condensers and coils with various casings. | ||
| View original record | -2- Contd. Weston milli-ammeter to a 20v volt d.c. supply. When cold, no leakage could be detected, but when hot, both cases showed a leakage resistance of about .5 MΩ. A similar test was made on a… | ||
| Scan082 | Improvements to the Goshawk 11 battery ignition coil to reduce energy leakage. | ||
| View original record | X4079 TO MFG. FROM R. c. to CJ. FN. c. to HS. BY. EP. [STAMP: RECEIVED NOV] R1/M15.11.22. V3483 GOSHAWK 11. BATTERY IGNITION. X4079 Our efforts should be directed to trying to make a coil which will… | ||
| Scan083 | Improvements to engine wiring, coils, and resistance to reduce self-induction. | ||
| View original record | (2) the secondary wires with the same degree of clearance as the other nearest metal work of the engine, which also appears should be kept 1" clear with air space? The primary wiring throughout except… | ||
| Scan084 | Issues with the Goshawk coil, its sparking requirements and the weakening effect of L.T. wires. | ||
| View original record | To EFC. from R. X4079a RL/M16.11.22. X.4079 - GOSHAWK COIL. I have not yet had an advice of a good coil for the Goshawk which is here. I think you ought to realise that we are asking for a very large… | ||
| Scan085 | Telegram requesting a test on the Goshawk coil regarding core hedgehogging and dimensional advantages. | ||
| View original record | R.R. 144A (100B.) SE 867. 9.7.18 MP 193871 X.4079 C ROLLS-ROYCE, LIMITED. TELEGRAM RECEIVED BY TELEPHONE. Time Received: 1.30 Date: 16.11.22 To: Roycar Derby By: PWB from: Chichester 12.26 Blank… | ||
| Scan086 | Telegram from Royce regarding a design modification for paraffin wax filling. | ||
| View original record | ROLLS-ROYCE, LIMITED. TELEGRAM RECEIVED BY TELEPHONE. R.R. 144A (100B.) SE 867. 9.7.18 MP 19387¹. Time Received. Date. To. By. from g. at one end and giving extra length of core to facilitate… | ||
| Scan087 | Dispatch of a 40/50 coil and a high tension terminal for Goshawk battery ignition. | ||
| View original record | V4079a To R. from EFC. C. CJ. EFC8/T16.11.22. 4079 E.3486 - GOSHAWK BATTERY IGNITION. We have your memos R1/M13.11.22 and R2/M10.11.22 also your telegram of to-day's date to hand. We are sending under… | ||
| Scan088 | Request to obtain untreated silk ribbon for experimental work on Goshawk ignition coils. | ||
| View original record | To ROY/Ms. from EFC. X4079a EFC2/T17.11.22. X.4079 - RE GOSHAWK IGNITION COIL. You may remember obtaining for us some time ago a number of reels of oiled silk ribbon 2.400" wide from the Ioco Company.… | ||
| Scan089 | The testing and design considerations for the Boshawk battery ignition coil. | ||
| View original record | W.H. 199(SDT) (SD676 19-7-17) MPu8486 X4079 W To R & E. from EFC. EFC1/T18.11.22. c. C.J. & I.N. c. Hy. & F.P. c. Eg. & Ds. X.4079 - BOSHAWK BATTERY IGNITION COIL. (1) The coil with rather longer core… | ||
| Scan090 | The electrical properties of insulating materials and the equipment for their measurement. | ||
| View original record | R.R. 199 (250T) (SD970 19-7-17) M/P.18805 Contd. -2- EFCL/T18.11.22. ionization effect being possibly lost by the fact that all the materials you mention of low inductivity have a figure which is at… | ||
| Scan091 | Coil experiments, focusing on core construction, insulation, and performance issues. | ||
| View original record | E.R. 199 (200T) (SD576 19-7-17) MP18285 (3) EFC1/T18.11.22. Contd. (14) Our experiments on the coils have indicated, e.g. bu cutting out, or very nearly cutting out, the ballast resistance, that the… | ||
| Scan092 | Experiments and comparisons of electrical coils, discussing insulation, performance, and testing standards. | ||
| View original record | R.R. 109 (250T) (SD676 19-7-17) MPuR/805 (4) EFCl/T18.11.22. Contd. (18) The experiment of more highly insulating the H.T. wire and terminal by means of giving the H.T. terminal insert a coating of… | ||
| Scan093 | Continued technical note discussing electrical leakage, the Johnsen-Rahbek effect, and ignition circuit components. | ||
| View original record | R.R. 199. (2_SOT) (SD670 19-7-17) MP:185865 5 (4) Contd. EFCl/T18.11.22. is hot, this effect is much increased and at the same time a certain amount of leakage may be felt. The increase in mechanical… | ||
| Scan094 | Continued memo on reducing loss in coils and transformers by impregnating them with paraffin wax and immersing them in oil. | ||
| View original record | Contd. -6- EFC1/T18.11.22. piping though hitherto we had looked upon this source of loss as quite negligible, as actual experiment has, we consider, demonstrated. (28) It invariably seems to be an… | ||
| Scan095 | Letter from a supplier regarding an order for untreated silk ribbon for insulating purposes. | ||
| View original record | X40790 COPY OF LETTER RECEIVED FROM:- THE IOCO RUBBER & WATERPROOFING COMPANY LTD, WHN/MTB NETHERTON WORKS, ANNIESLAND, GLASGOW. 20th Nov. 1922. Messrs. Rolls-Royce, Ltd., Nightingale Road, Derby.… | ||
| Scan096 | List of planned experiments and measurements concerning Goshawk ignition coils. | ||
| View original record | H.H. 199 (50T) (SD576 19-7-17) M/P.18805 X. 4079. EFC/T21.11.22. GOSHAWK IGNITION EXPERIMENTS. (1) Production dept. coils with longer core etc, bench and road trials. C.A.P. (2) Derby design coils as… | ||
| Scan097 | The making and testing of an experimental Goshawk battery ignition coil. | ||
| View original record | R.R. 159 (2500) (SD629 19-7-17) MP18/656 X4079 c.c. To R & E. from EFC. c. CJ. & PN. c. By. & EP. c. Rg. & Da. EFC1/T21.11.22. X.4079 - GOSHAWK BATTERY IGNITION COIL. (1) We have in hand the making of… | ||
| Scan098 | Experiments and trials conducted on an ignition coil, detailing electrical characteristics and performance. | ||
| View original record | R.R. 199 (250T) (SD576 19-7-17) M/180S6S Contd. -2- EFC1/T21.11.22. indication appears to be of magnitude nearly 1 milliampere. The effect is there and we do not think that so small a current as 1/10… | ||
| Scan099 | Observations on the insulation resistance of a high tension system on a car. | ||
| View original record | Contd. -3- EFC/T21.11.22. (8) We are at the moment making observations of the insulation resistance of the high tension system on the car both with 200 volts D.C. and 260 volts A.C. and in both cold… | ||
| Scan100 | Telegram from Royce regarding a Goshawk engine phenomenon, asking for immediate information on leakage or an electrostatic effect. | ||
| View original record | No. 560 B.M.C. - 40,000,000. 2/28. Manifoldia, Ltd. E. 1218 B M C 3. [Stamped and struck through]: EFG C IRMATION [Handwritten]: x4079a POST OFFICE TELEGRAPHS No. of Telegram: 84 Office Stamp:… | ||
| Scan101 | Modifications to the Goshawk ignition coil to mitigate heat issues. | ||
| View original record | X4079a To EY. from R. R3/M23.11.22. c! CJ. c. BJ. c. Wor. c. Hs. X.4079 - GOSHAWK IGNITION. c. PN. c. EFC. c. EP. 84595 Apparently it will cause considerable expense to alter the position of the coil,… | ||
| Scan102 | Sourcing silk for Goshawk ignition coils. | ||
| View original record | X4079a To ROY. from EFC. EFC1/T24.11.22. X.4079 - GOSHAWK IGNITION COILS We thank you for your enquiry to the Ioco Company with reference to the silk. The minimum quantity they offer, however, would… | ||
| Scan103 | Specification details for special coils designated G.II, covering coils No. 1, 2, and 3. | ||
| View original record | TU079 b Hs. - from E.J.B. EJB.1/LMG.25.11.22. Wcr. BY. BPO. Special Coil for G.II. Coils No. I & 2. These coils are made up as follows,- Material - Mouldinsite. Case - .500" deeper and .062 larger in… | ||
| Scan104 | Revised ignition coil for the Goshawk 11 engine, including a list of new and standard parts. | ||
| View original record | X4079 e To RHC. from BY/Ds. BY/Dsl/LL.27.11.22. C. EFC C. Sfc. C. LB. C. Wd. EXPERIMENTAL RE GOSHAWK 11 - IGNITION COIL - SEC:8140. X4079 In accordance with latest instructions, it is desired to make… | ||
| Scan105 | Specification list for various electrical components including wires, washers, insulators, and terminals. | ||
| View original record | To RHC. -2- Cont'd. BY/DS/.27.11.22. 24 S.W.G. (.022) Iron (Stalloy) Wires in Core. NOTE - For varnishing Coil use "Extra Insulating Varnish" from "The Sterling Varnishing Co". Manchester. NUTS.… | ||
| Scan106 | Instructions to replace a failing ignition coil with a new Stabalite case model on the Goshawk 11. | ||
| View original record | X4079 HS NOV 27 1922 RECEIVED BY2-P27.11.22. X4273 X4079 GOSHAWK 11. IGNITION COIL. Instructions have been issued that no cars shall be despatched with the original type of ignition Coil which… | ||
| Scan107 | Requesting experiments on the Goshawk ignition system's stabilite coil and its ability to start using dry batteries. | ||
| View original record | TO EFG. FROM R. X4079 5 R2/M30.11.22. C. to Cd. C. to Wont. C. to Sp c. to Hs.✓ c. to PM. X2273 GOSHAWK IGNITION. X3485 X4079 P-353 I should like you to find at what temperature the stabilite coil… | ||
| Scan108 | Various tests and experiments performed on a Goshawk ignition coil. | ||
| View original record | To R. & E. from EFG. c. CJ. & PN. c. By. & EP. c. Rg. & Da. X4079A EFC5/T1.12.22. X4079 - GOSHAWK IGNITION COIL EXPERIMENTS Attached please find copy of my assistant's report on various tests in… | ||
| Scan109 | Ignition coil experiments and modifications involving Goshawk coils. | ||
| View original record | Contd. -2- EFC5/T1.12.22. until the higher speeds. X4575 As regards chassis experiments, one of the original Goshawk coils has now been tried over the wheelcase, and has given results about equal to… | ||
| Scan110 | Experiments conducted on ignition coils, comparing their performance and resistance. | ||
| View original record | EFC. PB.65. Nov.29th 1922. EXPERIMENTS IN CONNECTION WITH COILS Experiments in connection with coils, have recently been carried out on the car and on the bench. Those carried out on the car were :-… | ||
| Scan111 | Results of temperature and electrical tests on ignition coils. | ||
| View original record | -2- Contd. The temperature results of the windings of the coils are rather lower than were anticipated, considering that the coils were heated up for half an hour on the engine, during the greater… | ||
| Scan112 | Test report on inductance and sparking performance with and without hedgehogging ends. | ||
| View original record | -3- Contd. corresponding primary current for each case being noted. The tests were repeated with the hedgehogging at the ends sawn off. The results are given below:- Inductance. | | With Ends. |… | ||
| Scan113 | Performance comparison report between a standard 40/50 coil and Mr. Brock's No.1 coil. | ||
| View original record | X.4079b 6.12.22. COIL COMPARISON - 40/50 STANDARD AND MR.BROCK'S No.1 COIL. Tests made on 3-G.II. K.L.G. sparking plugs fitted with gaps set at .030". Low tension make and break set at .010" when… | ||
| Scan114 | Coil failure where varnish filling became viscous and ran out of the H.T. terminal. | ||
| View original record | R.R. 199 (2goT) (SDg76 19-7-17) MP:B&S -2- Contd. with a gap exceeding .030". The varnish filling of this coil becomes viscous and runs out of the H.T. terminal after the car has run hot for a… | ||
| Scan115 | Proposed modifications and drawings for the Goshawk II battery ignition system. | ||
| View original record | X4079a E1/M8.12.22. To By. from E. c. to CJ. Wor. c. to Hs. EFC. X.3485 GOSHAWK II BATTERY IGNITION X.4075 X.4079 We send you herewith the following drawings:- Lec.1653 - Improved ignition coil in… | ||
| Scan116 | Proposed modifications to wiring, coil, and other component layouts. | ||
| View original record | Contd. -2- E1/M8.12.22. the distributor. It makes the wiring less straggly, and it should be electrically better. The final move is to use an improved coil as on Lec.1653 permanently supported from… | ||
| Scan117 | Description of the internal H.T. connection for an improved Goshawk II battery ignition coil. | ||
| View original record | TO EY. FROM E. c. to GJ. c. to WPG. c. to HS. GOSHAWK II. BATTERY IGNITION. Referring to the improved ignition coil shewn on drawing LeC 1653, the internal H.T. connection on the coil is in the form… | ||
| Scan118 | Confirmation of a telegram sent from EFC to Mr. Royce regarding a leakage issue. | ||
| View original record | X.4079a 10.11.22 CONFIRMATION OF TELEGRAM SENT BY EFC TO MR ROYCE. LEAKAGE EXISTS BUT APPARENTLY DOES NOT ACCOUNT FOR WHOLE EFFECT REPORT POSTED. CLARK. | ||
| Scan119 | Copy of a telegram sent to Mr. Royce regarding the negligible effect of primary loads. | ||
| View original record | X.4079a 20.11.22. Copy of telegram sent to Mr. Royce W.W. EFFECT PRESENCE PRIMARY LOADS EXPERIMENTALLY (Handwritten 'E' above the 'A' in LOADS) PROVED NEGLIGIBLE. CLARK. | ||
| Scan120 | Experiments conducted to measure the temperatures of Goshawk ignition coils. | ||
| View original record | To R & E. from EFC. c. CJ. & PN. c. Ry & EP. c. Rg: & Da. X40796 EFC2/T14.12.22. X.4079 - GOSHAWK IGNITION COIL EXPERIMENTS In accordance with your R2/M30.11.22, we have now made some experiments… | ||
| Scan121 | Temperature/time curve tests for various engine coil configurations and positions. | ||
| View original record | Contd. -2- EFC2/T14.12.22. Please find attached photostat copy of temperature/time curves obtained in this connection for:- (1) A coil in stabalite case mounted on the engine without insulation. (2) A… | ||
| Scan122 | Comparison of different ignition coils, including bakelite, staballite and Goshawk types. | ||
| View original record | Contd. -3- EFC2/T14.12.22. position. The experimentally instructed coil with increased size of core and absence of hedgehoggings is not yet ready for test but further comparative tests have been made… | ||
| Scan123 | Performance comparison of improved bakelite, 40/50, and stabalite coils, focusing on gap tolerance and leakage. | ||
| View original record | Contd. -4- EFC2/T14.12.22. Improved bakelite coil as above described on cylinder head .035 40/50 coil on cylinder head .035 (average of 2 comparisons on different days). In this condition the improved… | ||
| Scan124 | Comparison of performance between a standard 40/50 coil and Mr. Brock's No.1 coil. | ||
| View original record | 6.12.22. COIL COMPARISON - 40/50 STANDARD AND MR. BROCK's No.1 COIL Tests made on 3-G.II. K.L.G. sparking plugs fitted with gaps set at .030". Low tension make and break set at .010" when fully open.… | ||
| Scan125 | Graph plotting temperature rise over time for a carburettor with different insulation setups. | ||
| View original record | TEST ON INSULATED CARBURETTOR TEMPERATURE (°C) TIME (MINUTES) Legend/Key: TIE ON TO CASE. IRON INSULATED. SEE FCD 298. (1) & (2) INSULATED. (3) CARB BUT UNINSULATED. ON BRACKET. (4) AS IN (3) BUT… | ||
| Scan126 | Design limitations and temperature tests for the Coshawk Ignition Coil. | ||
| View original record | To E. from EFC. c. Ey. c. Ey/Ds. X4079a EFCl/T19.12.22. X.4079 - RE COSHAWK IGNITION COIL X3485 With reference to your EL/M8.12.22, we notice from LeC.1653 that the improved ignition coil does not… | ||
| Scan127 | Typed letter discussing new coil designs intended to be made in bakelite cases. | ||
| View original record | Contd. -2- EFC1/T19.12.22. In any case it seems expedient to reserve the instructioning of this until we have your further remarks. It is taken for granted that you intend these new designs of coil to… | ||
| Scan128 | Follow-up memo requesting an answer regarding the Goshawk Ignition Coil. | ||
| View original record | V4079 To E. from EFC. c. By c. By/Ds. EFC1/T2.1.23. RE X.4079 - GOSHAWK IGNITION COIL. We should be glad of an answer to our note EFC1/T19.12.22. EFC. (faint, upside down text) MADE AT CROXLEY (faint,… | ||
| Scan129 | Construction and specifications of Coil No. 3, with comparisons to G.II and 40/50 coils. | ||
| View original record | X 4079. Hs.. 2nd January 1923. Coil No. 3 is made up as follows:- All moulden parts are made of "Mouldensite" which EFC. has proved to be stronger mechanically and makes a better insulator than either… | ||
| Scan130 | Design, materials, and standardisation of the Goshawk ignition coil. | ||
| View original record | X4079 c TO HPG. FROM E. c. to OJ. c. to HS. c. to HY. E1/M6.1.23. X.4079 - RE GOSHAWK IGNITION COIL. RECEIVED Referring to the above, and the drawing Lec 1653, when this design was made we understood… | ||
| Scan131 | Test report on a Goshawk ignition coil, comparing its performance under various conditions and gap settings. | ||
| View original record | X.4079 9.1.23. X.4079 - GOSHAWK IGNITION COIL Car 3G.II . K.L.G. plugs set at .030" Low tension make and break set at .010". All conditions the same as on previous coil tests. Coil having larger core… | ||
| Scan132 | Coil made to instructions, seeking guidance on further production. | ||
| View original record | EFC. X.4079. 6.1.23. Herewith coil made to instructions By/Dsl/ML27.11.22. So far we have only produced the one coil. Do you consider we should proceed with more right away or await your test and… | ||
| Scan133 | Standardisation of the Goshawk ignition coil following tests. | ||
| View original record | X.4079 To RHC. from EFC. c. By. EFC2/T8.1.23. X.4079 - GOSHAWK IGNITION COIL. We attach copy of El/M6.1.23 in answer to our enquiry re the instructioning of coils to LeC.1653. On account of this and… | ||
| Scan134 | Material selection for Goshawk and 40/50 coil cases, comparing stabalite and bakelite. | ||
| View original record | X.4079 Extract from R6/M19.1.23. RE IGNITION X.3485. As regards the Goshawk and 40/50 coil, I think we should not depart from stabalite until we are sure the material we substitute does not decrease… | ||
| Scan135 | Experiments and proposed standardisation of a new Goshawk ignition coil. | ||
| View original record | XW079 To R. from EFC. c. to CJ. c. to Hy. c. to EP. EFCL/T23.1.23. X.4079 - RE GOSHAWK IGNITION COIL. On 4-G.II which is to be brought to you tomorrow, we are putting one of the standard coils with… | ||
| Scan136 | Alterations to a coil case moulding and comparing it to an ordinary 40/50 stahlite coil. | ||
| View original record | EFCL/T23.1.23. -2- Contd. of .312 between the secondary winding and the case, which would seem to be ample. As regards the new coil case moulding it has only meant a new plunger being made for the… | ||
| Scan137 | Proposal to standardize Goshawk ignition coils by increasing their length. | ||
| View original record | XH079 To R. & E. from EFC. c. EY. c. Ey/Ds. c. Mr. Brock. c. EP. EFC2/T29.1.23. X.4079 - GOSHAWK IGNITION COILS X3445 We are most anxious, irrespective of the material of the coil cases, i.e. whether… | ||
| Scan138 | Improving ignition component windings and insulation to resolve ongoing difficulties. | ||
| View original record | EFC2/T29.1.23. -2- Contd. resistance may be such that sufficient magnetising effect is possible at all speeds without unduly reducing the ballast. Another reason is that with the six-layer primary we… | ||
| Scan139 | Modified, less expensive Goshawk ignition coil design using mouldensite insulation. | ||
| View original record | To EFC. from R. c. to CJ. Wor. c. to PN. BY. c. to EP. Hs. XH079 RS/M29.1.23. GOSHAWK IGNITION COIL. XH079 X4575 With reference to your EFCl/T23123 I think you have done exceedingly well with this… | ||
| Scan140 | Agreement to standardise the modification for a larger 1/8 inch Goshawk ignition coil. | ||
| View original record | X.4079 To EFC. from R. c. to BY. EP. E. R5/M31.1.23. X.4079 - GOSHAWK IGNITION COILS. Referring to your EFC2/T29123, concerning the 1/8" larger coil, your letter has crossed mine which also suggests… | ||
| Scan141 | Requesting the construction of three experimental Goshawk ignition coils and querying the design of the coil seating. | ||
| View original record | X4079 To By. from KYC. c. By/Ds. c. EP. c. Mr. Brock. EPG1/T2.2.23. X.4079 - RE GOSHAWK IGNITION COIL. X4575 In accordance with FG/M29.1.23 and FG/M31.1.23, would you kindly arrange to instruct Mr.… | ||
| Scan142 | The production of three experimental coils based on Mr. Brock's No.3 coil design. | ||
| View original record | X4079 To EFC. BY/Ds2/LL3.2.23. RE X.4079.b. Re your EFC1/T2.2.23, will you kindly note that we have arranged with Mr Brock to produce 3 coils similar to the ones known as his No.3 coil. These will… | ||
| Scan143 | Request to obtain special insulating oil paper from Messrs. Attwater for building three experimental ignition coils. | ||
| View original record | x 4079 To-Wd. [Struck through] C. EFC. [Struck through] To. Mr Brock. RE IGNITION COIL - SECTION 8140. It is required to build experimentally 3 Ignition Coils, for which we shall require special… | ||
| Scan144 | Test report for a returned ignition coil, model T.G. 3, detailing its condition and test results. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 X. 4079. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E.F.C Order No: P.B.79 Date: Feb. 5th 1923 Customer's No. X 4079 Test of Coil T.G. 3. This coil returned… | ||
| Scan145 | Record of testing, failure, and repair for ignition coils TG2 and TG3. | ||
| View original record | X4079 EFC/T7.2.23. X.4079 - IGNITION COILS Mr. Brock's second long coil(TG2) handed to Mr. Warwick to be put on the test bed engine on 23.1.23. Coil TG3 was put on 4GII car for Mr. Royce on . 23.1.23.… | ||
| Scan146 | Listing new parts required for an ignition coil and cancelling previous drawings. | ||
| View original record | R.R. 190 (3gD) (SD570 19-7-17) M P&Sons 14079 To RHC. C. EFC. EXPERIMENTAL BY/Ds1/M12.2.23. X.4079.b - IGNITION COIL. Please receive herewith one blueprint of each of the following new parts required… | ||
| Scan147 | Use of a square base for ignition coils and the choice of materials such as bakelite, mouldensite, or stabalite. | ||
| View original record | BY. from Hs. Wor/for Mr. Brock. X.4079. Hs5/LG16. 2.23. IGNITION COILS. During our last visit to W.W. we took up the question with R. of using the square base for the ignition coils in the wheelcase… | ||
| Scan148 | Requesting to increase an order of oil paper for experimental purposes on an ignition coil. | ||
| View original record | X 4079 To Wd. C. EFC. C. Mr Brook. BY/Dsl/ML21.2.23. RE IGNITION COIL - SEC:8140. With reference to the 25 yards of Oil Paper .00075 thick X 2.715 wide, which we are obtaining from Messrs. Attwater… | ||
| Scan149 | Instructions document detailing the failure of the original TG3 coil during testing. | ||
| View original record | ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E.F.C Order No: P.B. 82 Customer's No. X4079 Failure of N°1 T.G.3. Coil. This coil is the original T.G.3 coil made by Mr Brock, and upon which several tests have… | ||
| Scan150 | Instruction sheet detailing the inspection and fault analysis of a returned coil. | ||
| View original record | R.R. 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. 19 To Order No PB 82 (2). Customer's No. running on same for about half a minute; the breakdown being notified by… | ||
| Scan151 | New square base ignition coil, enclosing blueprints for new parts and discussing material alterations. | ||
| View original record | EXPERIMENTAL X4079 To RHG. C. EFC. BY/Ds1/ML.6.3.23. RE IGNITION COIL - X.4079.b. Now that R. has agreed to use the Square Base Coil and 1/4" longer for the Wheelcase position, will you please receive… | ||
| Scan152 | The receipt, testing, and allocation of Goshawk ignition tall coils. | ||
| View original record | X4079 EFC2/T12.3.23. X.4079 - GOSHAWK IGNITION TALL COILS We have today received from RHC. coil 1TG3 repaired, and 4TG3 (new coil). These have been handed to CAP. for test. Coils 2TG3 and 3TG3 have… | ||
| Scan153 | Testing and fitting of new, taller Goshawk ignition coils on car 5-G.II and other Goshawk chassis. | ||
| View original record | To E. from EFC. X4079 EFC5/T13.3.23. X.4079 - TALLER GOSHAWK IGNITION COIL. X4575 I do not think the car 5-G.II which you have at W.W. is fitted at the moment with one of the new 1/2" taller type… | ||
| Scan154 | Confirming an arrangement to fit two tall Goshawk coils to chassis G1 and 2 G.II. | ||
| View original record | X4079 To RHC. from EFC. EFC3/T13.3.23. X.4079 - RE TALL GOSHAWK COIL. This is to confirm that as arranged in conversation you will fit the two tall coils 2 TG3 and 3TG3, one of which namely 3TG3 was… | ||
| Scan155 | Fitting a taller ignition coil for a Goshawk engine and issues with the existing one. | ||
| View original record | X4079 To EFC. from E. E1/M19.3.23. X.4079 - TALLER IGNITION COIL FOR GOSHAWK In reply to your memo. EFC5/T13323., 5 Goshawk II. is not fitted with one of the taller coils, and we should be glad to fit… | ||
| Scan156 | Sending of a taller type ignition coil for a Goshawk engine. | ||
| View original record | X. 4079. To E. from EFC. EFC1/T21.3.23. X.4079 - TALLER IGNITION COIL FOR GOSHAWK. With reference to your E1/M19.3.23. we are having sent to you one of the taller type ignition coils in mouldensite… | ||
| Scan157 | Requesting arrangements for the despatch of an experimental Goshawk ignition coil. | ||
| View original record | X.4079 To Wd. from EFC. EFC2/T21.3.23. X.4079 - TALLER IGNITION COIL FOR GOSHAWK. We have an experimental Goshawk coil in mouldensite case, designated 1TG3, which we desire to send to E. at West… | ||
| Scan158 | Results of a production test on T.G.3 coils for Goshawk coils. | ||
| View original record | X. 4079. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E.F.C. Order No: P.B. 86. Customer's No: X 4079. Date: March 16th 1923 Production Test of T.G.3 Coils. The four coils of the T.G.3 type, have now been… | ||
| Scan159 | Instruction and test sheet for four coils, detailing various measurements and remarks. | ||
| View original record | ROLLS-ROYCE LIMITED. INSTRUCTIONS. To ___________ Order No PB86 (2) Customer's No. ________ (300 bks) (SF 152. 6-11-18.) MP 197880 19___ Table Title: Coils | Tests | 1 | 2 | 3 | 4 | Remarks |… | ||
| Scan160 | Instruction sheet regarding production tests on a repaired 4TG3 coil which still appears to be weak. | ||
| View original record | RR.238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 X.4079 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E.F.C Order No: P.B.89 Customer's No.: X4079 Date: April 4th 1923 4TG3 Coil. This coil has again been put… | ||
| Scan161 | Instructions and results regarding a reliability test on a 4TG3 coil. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 X. 4079. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E F C. Order No: P.B. 90 Customer's No: X 4079 Date: April 9th 1923. Reliability of Coil 4TG3 In… | ||
| Scan162 | To Mr. Clark regarding the acceptance of a special spark coil that has been rewound. | ||
| View original record | Mr. Clark. X.4079 7.5.23. X. 4079 - SPECIAL COIL. Please accept 1 spark coil new type C2 This coil has been rewound throughout with new quality paper now O.K. 4TG3 W. Gamble. | ||
| Scan163 | Table detailing the resistances and inductances of Goshawk ignition coils. | ||
| View original record | X 4079. 22.11.22. 24.5.23. X.4079 - PARTICULARS OF RESISTANCES AND INDUCTANCES OF PRIMARIES AND SECONDARIES OF GOSHAWK IGNITION COILS. PRIMARY SECONDARY Coil. | Resis. (W) | Imped. at 50~ (W) | Reac.… | ||
| Scan164 | Test report for a faulty LG2 coil. | ||
| View original record | X. 4079. RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E.F.C. Order No: P.B.94 Customer's No. X 4079 Test of Faulty Coil LG2 This coil was returned to us on the… | ||
| Scan165 | Data sheet recording preliminary bench test results for coil temperature by rise of resistance. | ||
| View original record | X. 4079 COIL TEMPERATURE BY RISE OF RESISTANCE. Preliminary bench results | 22407 reading (Live. on .15 amp. range). | 22407 milliamps. (using correction curve) | 22596 reading | 22596 millivolts.… | ||
| Scan166 | Data table recording coil temperature based on the rise of electrical resistance. | ||
| View original record | COIL TEMPERATURE BY RISE OF RESISTANCE. | 22407 reading (Divs. on 15 amp. range). | 22407 milliamps. (Using correction curve) | 22596 reading | 22596 millivolts (100 divs = 50 mv) | 22596 milli-amps.… | ||
| Scan167 | Testing of coil 1G11 fitted into a new case made of Redmanol moulding powder. | ||
| View original record | X.4079. EFC. 6.6.23. X.4079. Herewith coil 1G11, this has been fitted into a case made of Redmanol moulding powder. I have had this coil heated in our oven to 120°C, and find that it jumps the 8½ mm.… | ||
| Scan168 | Instruction sheet detailing the testing of coil TG2 in a 'Redmanal' case and suggesting its fitment to car 3GII. | ||
| View original record | R.R. 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. X. 4079. To: E.F.C. Date: June 8th 1923 Order No: P.B. 98 Customer's No: X 4079 Coil TG2 in "Redmanal" Case This… | ||
| Scan169 | Replacement of Goshawk ignition coils on chassis 3-GII. | ||
| View original record | -XC4079. EFC/T9.6.23. X.4079. GOSHAWK IGNITION COILS Coil TG2 fitted in Redmanol case was today handed to Mr. Warwick to replace coil L.G.1. on chassis 3-GII. EFC. | ||
| Scan170 | Transfer and refitting of a 20 HP ignition coil. | ||
| View original record | X4079 EFC/T17.7.23. X.4079 - 20 H.P. IGNITION COIL. Coil TG1 taken from 40/50 test engine (replaced by SB1) and handed, together with 4TG3 from bench, to Mr. Brock to be fitted up in new Redmanol… | ||
| Scan171 | Testing of experimental 20 HP ignition coils fitted with new Redmanol cases. | ||
| View original record | To Hs/TMW. from EFC. X4079 EFC5/T17.7.23. X.4079 - 20 H.P. IGNITION COILS Herewith coil 5TG3 which has been fitted up in a new Redmanol case, so that this is now an experimental coil and needs a… | ||
| Scan172 | The investigation of failures in 20 HP ignition coils and experiments with improved designs. | ||
| View original record | X4079 To EP. from EFC. c. Hy. c. Wor. c. Sft. for Mr. Brock. EFC1/T17.7.23. X.4079 - 20 H.P. IGNITION COILS. X4273 Further to our EFC2/T16.7.23, coil No.2963, in which there existed a definite break… | ||
| Scan173 | Coil failures and potential remedies, discussing various materials and designs. | ||
| View original record | Contd. -2- EFC1/T17.7.23. a case in Redmanol material which so far has not given the least sign of failure in extreme conditions. This is the only coil that can at the moment be looked upon as an… | ||
| Scan174 | List detailing coils on various chassis, specifying materials and turn counts. | ||
| View original record | X 4079 23.1.24. X.4079. X.4273. X.4596. COILS ON VARIOUS CHASSIS, ETC. TG 1 Lab. (Redmanol). 1 TG 3. Lab. (Redmanol). 2 TG 3. Lab. (Mouldensite). 3 TG 3. 5-GII. (Redmanol). 4 TG 3. Lab. (Redmanol). 5… | ||
| Scan175 | List cross-referencing Chassis numbers with their corresponding Coil types. | ||
| View original record | Chassis. Coil. 49-GB. Old type G. G.1. 1 PP. 2 GII. 40/50 old std. stabalite. 3GII. 3 PP. 4 GII. TS 4. 5 GII. 3 TG 3. 6 GII. TS 5. 7 GII. TR 1. EFC. 23.1.24. | ||
| Scan176 | The replacement of a Goshawk ignition coil due to material issues at high temperatures. | ||
| View original record | X4079 To Hr. from EFC. EFC1/T18.7.23. X.4079 - GOSHAWK IGNITION COIL. We are sending you herewith tall Goshawk type coil TG1 which has now been fitted in a Redmanol case. We are changing all these… | ||
| Scan177 | List allotting tall coils in Redmanol cases to various chassis for testing. | ||
| View original record | X. 4079 21.7.23. TALL COILS IN REDMANOL CASES ALLOTTED TO VARIOUS CHASSIS, ETC. Coil. Chassis. TG1. Bench. TG2. 3-GII. 1TG3. 4-GII. 3TG3. 5-GII. 4TG3. 6-GII. 5TG3. 7-GII. 2TG3 coil left in mouldensite… | ||
| Scan178 | Notice detailing the placement of Goshawk ignition coils in Redmanol cases onto specific chassis. | ||
| View original record | X.4079. 21.7.23. X.4079 - GOSHAWK IGNITION COILS + TALL TYPE IN REDMANOL CASES The following coils have now been placed on their respective chassis:- Coil. Chassis. 1TG3. 4-GII. 4TG3. 6-GII. 5TG3.… | ||
| Scan179 | Urgent request for mileage information on chassis 3-GII, with the handwritten reply. | ||
| View original record | x4079 To Mr. Warwick. EFC2/T24.7.23. Would you kindly let me know by return the mileage covered by chassis 3-GII since 8.6.23, inclusive if possible of the mileage run by Capt. Hallam recently, i.e.… | ||
| Scan180 | Experimental and road test report regarding the standardisation of a half-inch longer ignition coil in a stabalite case. | ||
| View original record | (Expl. & Road Test Report to accompany standardisation sheet). x4079 X4596 HALF INCH LONGER IGNITION COIL IN STABALITE CASE. X445 x4079 The present proposal is to standardise a combination of two… | ||
| Scan181 | Coil mileage tests, concluding on the benefits of an improved coil design with a Stabalite case. | ||
| View original record | Contd. -2- EFC1/T24.7.23. Coil. TG1. 3714 miles on 7-GII. TG2. 1618 miles on 3-GII. 1TG3. 466 miles on 4GII and several hundred miles on 5-GII. at West Wittering. 2TG3. Several thousand miles on 2GII.… | ||
| Scan182 | Notification regarding the fitting of coil 3TG3 to chassis 5-GII. | ||
| View original record | X.4079. EFC/T25.7.23. X.4079 - COILS - TALL TYPE IN REDMANOL CASES. Chassis 5-GII has now been fitted with coil 3TG3. EFC. | ||
| Scan183 | Introduction of paper insulation between the primary winding layers of an ignition coil to improve reliability. | ||
| View original record | EFC. C. "H" Dept. (Struck through) C. Mr. Gamble. (Struck through) C. Mr. Hayes (Struck through) X4079 BY5-P25.7.23. X.4079 (Struck through) IGNITION COIL. X3445 (Struck through) Re the question of… | ||
| Scan184 | Experiment to build three improved battery ignition coils. | ||
| View original record | X4079 By/Ds1/ML26.7.23. To EFC. from By/Ds. c. RHC. c. Sft.for Mr. Gamble. c. Hs. X.3445 - RE BATTERY IGNITION COIL. X.4079. In accordance with BM's instructions - BY5/P25.7.23., it is required to… | ||
| Scan185 | Issues with ignition coil insulation, materials, and standardisation. | ||
| View original record | X4079 To EY. from EFC. c. By/DS. c. EP c. Sft. for Mr. Brock. EFC1/T26.7.23. X.4079 - RE IGNITION COIL. X3445 Answering your Ey5/P25.7.23, I am certainly in agreement with producing an insulation… | ||
| Scan186 | Failure of three 20-HP ignition coils, requesting replacements and an investigation. | ||
| View original record | X 4079 Sft. for Mr. Brock. c. BY. c. EFC. c. Hs. c. Wor. EP4/H10.8.23. 20-HP IGNITION COIL FAILURES. Further to our memo EP6/H14.7.23, we are today returning to you three further coils which have… | ||
| Scan187 | Melted coil sentinel (73°) fitted to a 4-GII. | ||
| View original record | X4079 16.8.23. Re COIL SENTINEL (73°) The above coil sentinel fitted to 4-GII has melted. The condenser sentinel is still O.K. (Coil in engine position). EFC/CAP. | ||
| Scan188 | Test results for the melting point of 73°C coil and condenser sentinels. | ||
| View original record | X4079 EFC. 16.8.23. X.4079 X.4430. RE MELTING POINT OF SENTINELS. The results of the melting points of the 73°C coil and condenser sentinels are 73°C. One sentinel was taken for test in each case. GJ. | ||
| Scan189 | Investigation and test results of failing 20-HP ignition coils from various chassis. | ||
| View original record | X.4079. Sft. to Mr. Brook. c.c. to By. c. to EPC. c.c. to He. c.c. to Mer. EP/CEP4/EC17.8.23. 20-HP. IGNITION COIL FAILURES. X4079. X4273 Further to our memo' EP4/H10.8.23. We note the cause of the… | ||
| Scan190 | Specification table for various types of coil primary windings. | ||
| View original record | X4079 Typed 17.8.23. X.918- COIL PRIMARY WINDINGS. X.4079. X.4273. X.3173. X.4596. X.3445. | Coil. | Number of turns. | Number of layers. | Dia. of Wire. | Gauge of wire. S.W.G. | Approx. resis.… | ||
| Scan191 | Requesting the creation of new ignition coil temperature indicating sentinels with a higher melting point. | ||
| View original record | To H1. from EFC. EFC2/T21.8.23. X4079 RE IGNITION COIL TEMP. INDICATING SENTINELS. X.4079. A number of the 73º sentinels which you made up for our coils have melted on the coils and indicate that… | ||
| Scan192 | Summary of experiments and fault finding on three ignition coils. | ||
| View original record | RR 238 (500 Bks.) (SF 152. 6-11-18.) MP 197880 X.4079. ROLLS-ROYCE, LIMITED. INSTRUCTIONS. To: E.F.C Order No: P.B. 113 Customer's No. X 3445 X.4079 Tests for Primary Winding of Ignition Coil. The… | ||
| Scan193 | Worksheet detailing the testing and failure analysis of electrical coils. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Order No. PB 113 (2) Customer's No. No 3115 Quite O K when received. Primary tested on bench with 24 volts during… | ||
| Scan194 | Insufficient socket depth for the H.T. wire on the ignition coil moulding, recommending an increase. | ||
| View original record | X.4079. To BY/Ds. from EFC. c. Sft. for Mr. Brock. EFC5/T29.8.23. X.4079 RE IGNITION COIL MOULDING - CASING FOR H.T. WIRE. It is considered that the socket for the H.T. wire is not quite deep enough… | ||
| Scan195 | List of standard temperatures for sentinels in degrees Celsius. | ||
| View original record | X. 4079 3.9.23. STANDARD TEMPERATURES FOR SENTINELS. 65° C 69° C 73° C 77° C 82° C 87° C | ||
| Scan196 | Comparing the sparking performance of ignition coils in cases of various materials. | ||
| View original record | R.R. 493 (40 H) (SL 42 12-7-23). J.H., D. X4079 EXPERIMENTAL REPORT. COPIES TO: R.CJ. BJ. WOR. By. E. Da. EP. PN. OY. Expl. No. X.4079. X.3513. REF EFC1/T3.9.23. OBJECT OF TEST. Comparisone of the… | ||
| Scan197 | Temperature tests of ignition coils housed in cases made from various materials. | ||
| View original record | EFC. PB114. Sept. 1st 1923. TEMPERATURE TESTS OF COILS IN CASES OF VARIOUS MATERIALS. Tests have been made comparing the effect of temperature on the sparking of coils fitted into cases of stabalite,… | ||
| Scan198 | Test report on a coil connected to six graduated spark gaps, recording performance during a heating-up process. | ||
| View original record | -2- Contd. Test 1. In this test the coil was connected to the six spark gaps in the ordinary way, the gaps, however, being graduated from 6.5 mm. to 4.0 mm. in length, viz:- Gap No.1 6.5 mm. " No.2… | ||
| Scan199 | Test report comparing the maximum regular sparking gap of various insulated coils during a heating-up process. | ||
| View original record | -3- Contd. Test 2. In this test an external gap was used, making it a practical reproduction of the test as carried out on the car. The six main gaps were set at 4.0 mm. and the maximum length of… | ||
| Scan200 | The temperatures of dynamo, ignition coil, and condenser units using fusible metal sentinels. | ||
| View original record | X4079 To R & E. from EFC. c. CJ. & PN. c. EY. c. EP. EFC1/T4.9.23. TEMPERATURES OF DYNAMO, IGNITION COIL AND CONDENSER FOUND BY MEANS OF TEMPERATURE INDICATING SENTINELS. X4383 X4430 X4079 We have… | ||
| Scan201 | Query regarding the testing conditions for ignition coils at varying temperatures under compression. | ||
| View original record | x4079 PN5/DN/5.9.23. TO EFC. FROM P.N. Referring to your report on Ignition coils in cases of various materials, Ref. EFC1/T3.9.23, will you inform me please whether the tests at varying temperatures… | ||
| Scan202 | Responding to a query about temperature tests of coils housed in cases of various materials. | ||
| View original record | X4079 To PN. from EFC. EFC3/T6.9.23. X.4079 - TEMPERATURE TESTS OF COILS IN CASES OF VARIOUS MATERIALS. Answering your PN5/DN/5.9.23, these tests were made with ordinary spark gaps in air. EFC. | ||
| Scan203 | Temperature tests of coils and the electrical stress on primary and secondary windings. | ||
| View original record | X4079 PN1/DP/7.9.23. To:- EFC. c. to EJ. X.4079 - TEMPERATURE TESTS OF COILS IN CASES OF VARIOUS MATERIALS. In reply to your memo EFC3/T6.9.23, surely unless your sparking gaps are arranged so that… | ||
| Scan204 | Temperature tests of coils, discussing spark-over E.M.F., distributor discharge, and winding breakdowns. | ||
| View original record | PN. from EFC. c. BJ. X 4079 EFC1/T8.9.23. X.4079 - TEMPERATURE TESTS OF COILS IN CASES OF VARIOUS MATERIALS. Answering your PN1/DP/7.9.23, the reduction in the spark-over E.M.F. due to gaps being… | ||
| Scan205 | List detailing the status and type of coils on various chassis. | ||
| View original record | X 4079 19.9.23. X.4079 X.4273. COILS ON VARIOUS CHASSIS ETC+ 26.10.23. TG 1 Lab. Lab TG 2. Dismantled. — 1 TG3 4-GII original unit. ✓ 2 TG3 Lab. (mouldensite). Lab 3 TG3. 5-GII. ✓ 4 TG3. 6-GII. Lab 5… | ||
| Scan206 | Melted 77°C sentinels for ignition coils on various GII models. | ||
| View original record | X. 4079- EFC2/T22.9.23. X.4079 - SENTINELS FOR IGNITION COILS. 77°C sentinels have melted twice on 3GII, once on 4GII, once on 6GII and once on 7-GII. EFC EFC. | ||
| Scan207 | Test results log for Goshawk ignition coils. | ||
| View original record | X.4079 X.3604cl. GOSHAWK IGNITION COILS. X.4079. Date. | Coil number. | (1) Secondary continuity. | (2) Secondary milli-amps. | (4) O.C.S. Test. | (5) Running current (amps) | (6) Amps. Volts. Ohms |… | ||
| Scan208 | From E.J. Brock to Mr. Clark regarding a GII coil used for testing rotors. | ||
| View original record | X4079a 17.10.23. Mr. Clark. Herewith is one of the early GII coils in an ELO case. We have been using this coil for the past 6 months for testing rotors; sometimes it has been on open circuit for half… | ||
| Scan209 | Historical and new suggestions for coil design, materials, and manufacturing. | ||
| View original record | X40796 To EFC. from R. EY. R7/M12.11.23. c. CJ. X.4079.b RE COILS. X.4596. A very long time ago we spent much time in improving the coil between us, Mr. Clark having suggested that the bakelite case… | ||
| Scan210 | Use of bakelite for ignition coil cases following struggles and failures with the material. | ||
| View original record | X40796 To EX. from EFC. c. By/RD. EFC2/T14.11.23. X. 4079b - IGNITION COILS. X4596 With reference to Mr. Royce's note R7/M12.11.23, re coils, (copy to you) I think R. must have understood that we… | ||
| Scan211 | The material and design of coil cases for 20HP and 40/50 models. | ||
| View original record | X40796 2. R. c. CJ c. EFC. BY3-P14.11.23. X40796 20HP & 40/50 COIL CASES. X4273 X4596 (1) Referring to R7/M21123, special long cases were made in synthetic resin of the bakelite type in material… | ||
| Scan212 | Modification of moulds for longer coils and a new design for E.A.C.11. | ||
| View original record | BY3-P14.11.23. contd. - 2 - When we adopted, after the standardisation sheet, the longer coil, we modified the existing moulds by merely turning out more of the top of the mould to allow for the… | ||
| Scan213 | List detailing coil configurations, materials, and winding specifications for various chassis models. | ||
| View original record | X 4079 3.12.23. X.4079 X.4273. X.4596. COILS ON VARIOUS CHASSIS, ETC. TG 1 Lab. (Redmanol) 1 TG3. Lab. (Redmanol) 2 TG3. Lab. (Mouldensite) 3 TG3. 5-GII. (Redmanol). 4 TG3. Lab. (Redmanol). 5 TG3.… | ||
| Scan214 | List cross-referencing Chassis types with their corresponding Coil types. | ||
| View original record | Chassis. Coil. 49-GB. Old type G. G1. 1 PP. 2 GII. 40/50 Old Std.Stabalite. 3 GII. 3 PP. 4 GII. TS 4. 5 GII. 3 TG 3. 6 GII. TS 1. 7GII. 5 TG 3. ____________ ____________ 3.12.23. EFC | ||
| Scan215 | Comparative testing of a new Redmanol encased ignition coil. | ||
| View original record | X4079c To RHC. from EFC. c. Hs/TMW. c. Mr. Brock. EFC6/T18.12.23. X.4079c - IGNITION COIL. Herewith we hand to you coil TRI which is an up-to-date standard coil with 18,000 secondary turns, but… | ||
| Scan216 | Experimental use of Redmanol cases for taller type ignition coils. | ||
| View original record | X. 4079b To BY. from EFC. c EP. c. Sft. for Mr. Brock. EFC4/T9.1.24. X.4079b - TALLER TYPE IGNITION COILS IN REDMANOL CASES. We have now made up in the Expl. Dept. three of the taller type coils in… | ||
| Scan217 | Test results log for Goshawk Ignition Coils, detailing continuity, milliamps, and current measurements. | ||
| View original record | X4079b. X.3604cl. GOSHAWK IGNITION COILS. X.4079b. X.4596. Before encasing. Date. | Coil number. | (1) Secondary continuity. | (2) Secondary milliamps. | (4) O.C.S. test. (amps) | (5) Running current… | ||
| Scan218 | Service and performance record for a tall coil, model LG1. | ||
| View original record | TALL COIL RECORD X 4079 Coil No. LG1 X. No. 4079 Date. | Service on. | If on car miles run. | If on test Notes re use. | Total miles run. | Remarks re performance. 6-1-23 | Received. | — | — | — | —… | ||
| Scan219 | Service and test record log for tall coil number LG2. | ||
| View original record | TALL COIL RECORD Coil No. L G 2. X. No. 4079 Column Headers: Date. Service on. If on car miles run If on test notes re use. Total miles run Remarks re performance. Table Entries: Row 1: Date: 17-1-23… | ||
| Scan220 | Service and testing log for a tall ignition coil, number T.G.I. | ||
| View original record | TALL COIL RECORD Coil No. T.G.I X. No. 4079 Table Columns: Date, Service on, If on car miles run, If on test notes re use, Total miles run, Remarks re performance. Row 1: Date: 12-3-23 Service on: On… | ||
| Scan221 | Service and test record for ignition coil TG2. | ||
| View original record | TALL COIL RECORD Coil No. TG2 X. No. 4079 Date. | Service on. | If on car miles run. | If on test notes re use. | Total miles run. | Remarks re performance. 1-12-22 | Received | — | — | — | In… | ||
| Scan222 | Test and service record for a specific Tall Coil, detailing its mileage, usage, and performance remarks. | ||
| View original record | TALL COIL RECORD Coil No. 1TG3 X. No. 4079 Date. | Service on. | If on car miles run. | If on test notes re use. | Total miles run. | Remarks re performance. 23-1-23 | On 4GII | 466 | — | 466 | Put… | ||
| Scan223 | Record card tracking the testing and service history of a tall coil. | ||
| View original record | TALL COIL RECORD Coil No. 2.TG3 X. No. 4079 | Date. | Service on. | If on car miles run. | If on test notes re use. | Total miles run. | Remarks re performance. | |---|---|---|---|---|---| | 27-2-23 |… | ||
| Scan224 | Record of tests, modifications, and performance for a specific tall coil. | ||
| View original record | TALL COIL RECORD. Coil No. 4.T.G.3. X. No. 4079 Date. | Service on. | If on car miles run. | If on test notes re use. | Total miles run. | Remarks re performance. 12-3-23 | Received. | — | — | — | In… | ||
| Scan225 | Service and performance record log for a tall coil, part number 5TG3. | ||
| View original record | TALL COIL RECORD. Coil No. 5TG3. X. No. 4079 Date. | Service on. | If on car miles run. | If on test notes re use. | Total miles run. | Remarks re performance. 1-5-23 | Received. | — | — | — | In… | ||
| Scan226 | List specifying the materials and turn counts for coils used on various chassis models. | ||
| View original record | X4079. 23.1.24. X.4079 X.4273. X.4596. COILS ON VARIOUS CHASSIS, ETC. 2TG3. Lab. (Mouldensite). 3TG3. 5-GII. (Redmanol). 4TG3. Lab. (Redmanol). 2 PP. Lab. (Stabalite). 3 PP. 3-GII. (Stabalite). TS 4.… | ||
| Scan227 | Typed list correlating chassis numbers with their corresponding coil types. | ||
| View original record | Chassis. Coil. 49-GB Old type G. G.1. 1 PP. 2 GII. 40/50 old std. stabalite. 3 GII. 3 PP. 4-GII. TS.5 5 GII. 3 TG 3. 6 GII. TR 2. 7 GII. TR 3 _________________ _______________ EFC. 3.3.24. | ||
| Scan228 | Internal request for the production of two more Coil Cases in Redmonal. | ||
| View original record | X.4079c Mr Brock. (Mr has been struck through) c. EFC. BY6-P1.2.24. X.4079c COIL CASES. ----------- Kindly produce two more Coil Cases in Redmonal to last design with coils wound to latest… | ||
| Scan229 | The comparative testing of Redmanol and ebonite coils, advising against their immediate standardisation. | ||
| View original record | X4079b SFT. for Mr. Brock from EFC. c. to BY. WOR. EFC2/LG7. 2. 24. X.4079b - TALL TYPE COILS IN REDMANOL CASES. Answering your written note. A thrashing test of the taller redmanol coil TR.1. has… | ||
| Scan230 | Internal instruction memo regarding the testing of two 'Tall Boy' Coils in Redmanol cases, and a follow-up on a previous test. | ||
| View original record | RR 239 (150 BKS.) (SH57-29-6-20.) MP 224358 X. 4079b. ROLLS-ROYCE LTD. INSTRUCTIONS. 6 - 2 - 1924 To: E.F.C. Order No. X. 4079b. Customer's No. Herewith two "Tall Boy" Coils in Redmanol cases as per… | ||
| Scan231 | Table of particulars for the resistances and inductances of primary and secondary Goshawk ignition coils. | ||
| View original record | X.4596. X.4079 1.3.24. PARTICULARS OF RESISTANCES AND INDUCTANCES OF PRIMARY & SECONDARY OF GOSHAWK IGNITION COILS. Coil. | PRIMARY | SECONDARY | Remarks. --- | --- | --- | --- | Resis. (W) | Imped.… | ||
| Scan232 | Test results for Goshawk ignition coils, detailing continuity, current, and resistance measurements. | ||
| View original record | X.4079. X.3604cl. GOSHAWK IGNITION COILS. X.4596. X.4079. Date. | Coil number. | (1) Secondary continuity. | (2) Secondary milliamps. | (4) O.C.S. test. | (5) Running current (amps). | (6) Amps. |… | ||
| Scan233 | Requesting outstanding thrashing test reports for Tall Redmanol Encased Coils. | ||
| View original record | X 4079b To Hs/TMW. from EFC. EFC2/T25.3.24. X.4596 - TALL REDMANOL ENCASED COILS. We have had from you a report on the thrashing test of coil TR1, but up to the present we have had no report on… | ||
| Scan234 | Ignition coil tests performed on chassis 7-GII. | ||
| View original record | 8.4.24. COIL TEST ON 7-GII. Tested on London Road. Water boiling. 1st test. High speed. 2nd. " Low speed full throttle.10 M.P.H. 3rd. " Starting (Engine). Spark gap adjusted for best result. Standard… | ||
| Scan235 | Comparative bench tests for various Goshawk ignition coils. | ||
| View original record | X4079 To Hs/TMW. from EFC. EFC2/T10.4.24. RE GOSHAWK IGNITION COILS. X4596 X4079 With reference to our conversation of yesterday, your Mr. Gibson has handed to us a report of the comparative tests of… | ||
| Scan236 | Requesting the receipt of a redmanol encased coil and reports on the operation of various Goshawk ignition coils. | ||
| View original record | To Hs/TMW. from EFC. X4079 EFC1/T23.4.24. RE GOSHAWK IGNITION COILS. X4079 X4596 Will you kindly note we are still awaiting the receipt from you of the redmanol encased coil TR3 from 7GII, as referred… | ||
| Scan237 | Extract detailing the discovery of a defective bakelite ignition coil causing issues when the engine gets hot. | ||
| View original record | X4079 To Hs. Extract from RL/M29.5.24. RE CARS FOR WW. X.4079. 6-EX. This car has been running well except when attempting to run on battery ignition only. I have just discovered that it has one of… | ||
| Scan238 | Expressing caution about using bakelite for a coil case and recommending careful experiments. | ||
| View original record | COPY. X4079 To EFC. from R. R2/M29.5.24. RE COILS. X.4079. I understand you have a Redmonite coils which is satisfactory as regards insulation with the bakelite type of case. I believe the design… | ||
| Scan239 | Testing of Redmanol encased coils and arranging further trials on experimental cars. | ||
| View original record | X4079 To EY. from EFC. EFC1/T31.5.24. X.4079 - REDMANOL ENCASED COIL. I have a note from R. copy of which is attached. A number of tests have been carried out on three tall redmanol encased coils,… | ||
| Scan240 | Request to produce three experimental ignition coils with cases made from Redmanol. | ||
| View original record | To Mr Brook. C. EFC. X.2079 BY/RD6/ML.3.6.24. C RE IGNITION COILS. Will you kindly produce 3 Ignition Coils identical to present standard except that the cases should be in Redmanol, and hand same… | ||
| Scan241 | Experimental testing of new taller Redmanol encased coils against the standard Stabalite coils. | ||
| View original record | X4079 To R. from EFC. c. CJ. BY. EFC5/T3.6.24. X.4079 - REDMANOL ENCASED COILS. Reference your R2/M29.5.24, we have three encased coils of the tall type running on experimental ca. These only differ… | ||
| Scan242 | Continued note comparing a mouldensite encased coil with a tall type redmanol coil, noting differences in the primary winding. | ||
| View original record | Contd. -2- EFC5/T3.6.24 these to replace the small mouldensite encased coil which you have at present on 6-EX. You have on 5-EII a tall type coil in a redmanol case, designated 3TG3, but this is not… | ||
| Scan243 | Testing and comparison of redmanol, stabalite, and bakelite encased ignition coils. | ||
| View original record | Y4079 To Hs/TMW. from EFC. EFC1/T5.6.24. X.4079s - IGNITION COILS. Herewith we return to you redmanol encased coil TR3, having made the desired tests. This can now be replaced on 7GII. You should at… | ||
| Scan244 | Internal instruction memo regarding the provision of three Tall Toy coils in Redmanol bases. | ||
| View original record | RR 236 (150 BKS.) (SH57.29-6-20.) MP 224358 X.4079b ROLLS-ROYCE LTD. INSTRUCTIONS. To E.F.C. Order No. Customer's No. Herewith 3 Tall Toy Coils in Redmanol Bases as per instructions from B.J. recently… | ||
| Scan245 | The dispatch of an up-to-date battery ignition coil in a moulded redmanol case for testing. | ||
| View original record | X. 40796. To R. from EFC. EFC1/T18.6.24. X:4079/- IGNITION COILS. Reference your R1/M29.5.24, addressed to Hs., and R2/M29.5.24, addressed to myself, we are now, as previously suggested, sending you… | ||
| Scan246 | Requesting an exchange of ignition coils to perform comparative bench temperature tests. | ||
| View original record | X40796 To Hs/TMW. from EFC. EFC3/T18.6.24. X.40796- IGNITION COILS. X4596 As you know we have had a further three Wall redmanol encased coils made up, designated, TR4, TR5 and TR6. We are now handing… | ||
| Scan247 | The despatch of an up-to-date ignition coil in a Redmanol case to Mr. Royce. | ||
| View original record | X.4079G. To Shipping Office. c. Despatch Stores. EFC2/T18.6.24. X.4079 b. IGNITION COIL. We are sending into the Stores one up-todate ignition coil in Redmanol case. TR6 Will you kindly arrange for… | ||
| Scan248 | List detailing coil specifications for various chassis, including materials, tests and number of turns. | ||
| View original record | X4079 X.4079. X.4273. X.4596. 19.6.24. COILS ON VARIOUS CHASSIS, ETC. 2TG3. Lab. (Mouldensite). 3TG3. 5-GII. (Redmanol). 4TG3. Lab. (Redmanol). TS 4. TMW.Tests. (Stabalite). TS 5. 4-GII. (Stabalite)… | ||
| Scan249 | List detailing the type of coil fitted to various chassis models. | ||
| View original record | -2- Chassis. Coil. 49-GB. Old std.type Z. (stabalite). G-I. e I PP. 2 GII. Old std. Z (stabalite). 3 GII. TR4. 4-GII. TS5. 5-GII. 3TR3. 6-GII. TR2. 7GII. TR3. ____________________ EFC. 19.6.24. | ||
| Scan250 | Requesting the replacement of a stabalite ignition coil with a Redmanol coil on an experimental car. | ||
| View original record | X4079 To Hs/TMW, from EFC. EFC8/T4.7.24. X.4079 - IGNITION COILS. We notice you have not yet replaced the stabalite coil on 7-GII with the Redmanol encased coil TR3, referred to in our EFC1/T5.6.24.… | ||
| Scan251 | Status report on the mileage of Tall Permanol coils on various test chassis. | ||
| View original record | X4079b EFC. WA.59. 9.7.24. X.4079b- TALL PERMANOL COILS ON 6-GII and 7GII. The above coils TR1 and TR2 have done up to date 6322 and 7445 miles respectively on 7-GII and 6-GII At present TR3 is fitted… | ||
| Scan252 | Temperature tests conducted on coils encased in Stabalite and Elo materials. | ||
| View original record | EFC. WA.61. 14.7.24. TEMPERATURE TESTS ON COILS IN STABALITE AND ELO CASES. Further to WA.60 a test has been made at temperatures of 77º and 87ºC on a stabalite encased coil (Z type) No.3713 and an… | ||
| Scan253 | Temperature tests of standard tall coils in stabalite and redmanol cases. | ||
| View original record | EFC. WA.60. COPY. 14.7.24. X.4079. TEMPERATURE TESTS OF RR.STANDARD TALL COIL IN STABALITE AND REDMANOL CASES. Comparative tests have been made with four coils, two in stabalite cases and two in… | ||
| Scan254 | Test results for ignition coils at various temperatures, detailing maximum regular sparking gap. | ||
| View original record | -2- Contd. (1) Temperature of oven = 77°C Coil No. Volts. Max. regular sparking gap. TS.6 8 4.0 mm. (Gaps Nos.4,5 and 6 out) TR.1 8 6.0 mm. TR.1 12 6.5 mm. TS.6 12 6.5 mm. TR.5 8 4.5 mm. (Gap No.6… | ||
| Scan255 | Page 3 of a report comparing the performance of different coils at various temperatures, with a recommendation for further testing. | ||
| View original record | Contd. -3- The average current taken by the primaries of the coils at 12 volts when hot was as follows :- TR.1 1.15 amperes. TS.6. 1.115 " TR.5 1.15 " 4353 1.26 " It will be seen that the redmanol… | ||
| Scan256 | Requesting the results of comparative thrashing tests on tall redmanol and stabalite encased coils. | ||
| View original record | X.4079b To Hs/TMW. from EFC. EFC4/T15.7.24. X.4079b - TALL REDMANOL ENCASED COILS. We have now carried out the comparative tests at high temperatures, referred to in our EFC1/T5.6.24. of the tall… | ||
| Scan257 | Follow-up note regarding the completion of tests on Tall Redmanol Coils. | ||
| View original record | X.4079 To HsZTMW.from EFC. EFC6/T13.8.24. X.4079 - TALL REDMANOL COILS. Referring to our note EFC4/T15.7.24, we trust that you will now shortly be abeto carry out these further tests and so complete… | ||
| Scan258 | Record log detailing the service history and performance testing of coil number 3.TG3. | ||
| View original record | TALL COIL RECORD. Coil No. 3.TG3. A. No. 4079 | Date. | Service on. | If on car miles run. | If on test notes re use. | Total miles run. | Remarks re performance. | |---|---|---|---|---|---| | 27-2-23… | ||
| Scan259 | Comparative testing of ignition coils and the replacement of a coil on vehicle 7-GII. | ||
| View original record | X4079 EFC/T25.9.24. X.4079 - IGNITION COILS. Coil TR3 from 7-GII has been handed back to us. Mr. Maddocks has been making comparative tests on TR3 and the standard tail coil 4735, and we have now… | ||
| Scan260 | Temperature test report on Heimanel encased tall coils TR1 and TR3. | ||
| View original record | RFC. WA.85. COPY. 6.10.24. TEMPERATURE TEST ON HEIMANOL ENCASED TALL COILS NOS. TR1 and TR3. Both of the above coils have been heated in our electrically heated oven at temperatures of 85° and 100°C… | ||
| Scan261 | The fitting of tall redmanol coils to experimental chassis. | ||
| View original record | To RHC. from EFC. c. to GWH. c. to TMW. Y4079b EFC5/T7.10.24. X.4079b - TALL REDMANOLE COILS. We hand you herewith tall redmanol coils TR1 and TR3. Will you kindly have these fitted as follows :- TR1… | ||
| Scan262 | The testing of tall battery ignition coils encased in Redmanol synthetic resin. | ||
| View original record | X40796 To R & E. from EFC. c. to CJ. & PN. c. to EY. Wpr. c. to Da. EP. EFC1/T14.10.24. X.4079b TALL BATTERY IGNITION COILS IN REDMANOL CASES. All the Redmanol encased coils dealt with in this report… | ||
| Scan263 | The laboratory and road testing of redmanol encased coils versus standard stabalite coils. | ||
| View original record | Contd. --2-- EFCI/T14.10.24. On 19.6.24 it was again brought into the laboratory and tested, together with redmanol encased coil TR5 and two standard stabalite coils, at artificially obtained… | ||
| Scan264 | Testing and performance results of various ignition coils on different car chassis. | ||
| View original record | Contd. -3- EFCl/T14.10.24. Examination of these results will show that any of these coils will stand quite a big external gap without any trouble, and that each of the redmanol encased coils TR2 and… | ||
| Scan265 | The comparative reliability and failure testing of different types of encased coils. | ||
| View original record | Contd. -4- EFC1/T14.10.24. In order to confirm the original failure of coils in Elo cases, a comparison was made between the short previous standard 40/50 stabalite encased coil and one of the… | ||
| Scan266 | Temperature tests of standard tall coils in stabalite and redmanol cases. | ||
| View original record | EFC. WA.60. COPY. 14.7.24. X.4079. TEMPERATURE TESTS OF RR. STANDARD TALL COIL IN STABALITE AND REDMANOL CASES. Comparative tests have been made with four coils, two in stabalite cases and two in… | ||
| Scan267 | Test report on various coils, detailing the maximum regular sparking gap at different oven temperatures. | ||
| View original record | -2- Contd. (1) Temperature of oven = 77°C Coil No. Volts. Max. regular sparking gap. TS.6 8 4.0 mm. (Gaps Nos. 4, 5 and 6 out) TR.1 8 6.0 mm. TR.1 12 6.0 mm. TS.6 12 6.5 mm. TR.5 8 4.5 mm. (Gap No. 6… | ||
| Scan268 | The average current taken by various coils when hot, comparing redmanol and stabalite types. | ||
| View original record | Contd. -3- The average current taken by the primaries of the coils at 12 volts when hot was as follows :- TR.1 1.15 amperes. TR.6 1.115 " TR.5 1.15 " 4383 1.26 " It will be seen that the redmanol… | ||
| Scan269 | Temperature test report on Reimanol encased tall coils nos. TR1 and TR3. | ||
| View original record | S5. COPY. 6.10.24. TEMPERATURE TEST ON REIMANOL ENCASED TALL COILS NOS. TR1 and TR3. Both of the above coils have been heated in our electrically heated oven at temperatures of 85º and 100ºC… | ||
| Scan270 | Temperature tests on coils encased in Stabalite and Elo materials. | ||
| View original record | FC, WA.61. 14.7.24. TEMPERATURE TESTS ON COILS IN STABALITE AND ELO CASES. Further to WA.60 a test has been made at temperatures of 77°C and 87°C on a stabalite encased coil (Z type) No. 3713 and an… | ||
| Scan271 | Comparative ignition coil tests on chassis 7-GII. | ||
| View original record | 8.4.24. COIL TEST ON 7-GII. Tested on London Road. Water boiling. 1st test. High speed. 2nd. " Low speed full throttle.10 M.P.H. 3rd. " Starting (Engine). Spark gap adjusted for best result. Standard… | ||
| Scan272 | Report on coils in Redmanol cases and a suggestion to produce mouldings in-house. | ||
| View original record | To DY. - from Wor. " EFC. - " " " HS. - " " X40796. Wor7/M4/11/24. X40796 X8710 I was so pleased with EFC's report on Coils in Redmanol cases that I sent it on to Mr.Brock, and I now attach copy of… | ||
| Scan273 | Copy of a letter discussing a report on coil cases, comparing Redmanol and Stabalite materials. | ||
| View original record | COPY. Wor. 29/10/24. Re EFC's report on coils in Redmanol Cases. I am very pleased to see these cases have done so well. They appear to be better than Stabalite. If this is the case it is rather… | ||
| Scan274 | Potential unreliability of Redmanol coil cases. | ||
| View original record | To BY. from Hs. c. to EFC. X40796 REDMANOL COIL CASES. X4596 Hs5/LG5.11.24. The difficulty we foresee with Redmanol Coil Cases, is that no reason is given in the report - why Redmanol is free from the… | ||
| Scan275 | The mileage test of a Redmanol encased coil on a 40/50 car. | ||
| View original record | EFC. X4079b 8.1.25. X.4079b. REDMANOL ENCASED COIL TR.3. It might be of interest to state that the above coil has now completed 18,100 miles (15,000 in France) on a 40/50 car (98-NK) without suspicion… | ||
| Scan276 | Advising the experimental construction of an EAC coil with a Redmanol case due to the susceptibility of stabalite cases to cracking. | ||
| View original record | To BY. from EFC. E. BY/RD. X4079c EFC4/T24.1.25. X.4079c. EAC. COIL IN REDMANOL CASE. V8710 We think it would be advisable to have one of these coils experimentally instructed with Redmanol case,… | ||
| Scan277 | Mileage log for experimental tall coils, listing case materials and miles run on various chassis. | ||
| View original record | X4079B EFC. 26.1.25. X X.4079b. MILEAGE OF EXPERIMENTAL TALL COILS. No. Case material. Particulars and miles run. TR1. Redmanol Run 9077 miles on Gos. chassis. TR2 " " 18146 " " " TR3. " " 18103 " "… | ||
| Scan278 | Test results for a Redmanol encased coil TR3 after endurance testing. | ||
| View original record | RR 238 (150 BKS.) (SH57.29-8-20.) MP 224359 X.4079b. ROLLS-ROYCE LTD. INSTRUCTIONS. To E.Y.b 29-1-1925 Order No. WA 106 Customer's No. X 4079b. Redmanol encased coil TR3. This coil has now completed… | ||
| Scan279 | Graph showing curves of spark-lengths and current consumptions for coils G.B.S. and S.B.1. | ||
| View original record | CURVES OF SPARK-LENGTHS AND CURRENT CONSUMPTIONS. OF COILS G.B.S. AND S.B.1 ON 10 VOLTS (APPROX), WITH GOSHAWK BALLAST AND DISTRIBUTOR. CONDENSER, ROLLED PAPER, CAPACITY .45 mF. NOTE. Spark readings… | ||
| Scan280 | Heavily faded document with a red ink stamp and a handwritten reference number. | ||
| View original record | X4079 [Main body of text is illegible] ROLLS-ROYCE, LIMITED PRINT ROOM. 16 FEB. 25 DERBY | ||
| Scan281 | Production test results for a Yall coil No TN2 in a 'Nestolite' case after rectification. | ||
| View original record | RR 238 (150 BKS.) (SH57.29-9-20.) MP 224388 X.4079c ROLLS-ROYCE LTD. INSTRUCTIONS. To E.F.b. Date 25 - 3 - 1925 Order No. WB1 Customer's No. X 4079 c Yall coil No TN2 in "Nestolite" case - production… | ||
| Scan282 | Request to exchange a TN1 Nestolite coil with a Redmanol encased coil between chassis 49-GB and 7-CII. | ||
| View original record | X.4079. To RHC. from EFC. EFC2/T30.3.25. X. 4079. RE COILS. Would you kindly effect an exchange between the coils on chassis 49-GB and 7-CII, putting the TN1 Nestolite coil on 7-CII and the Redmanol… | ||
| Scan283 | The mileage completed by Remanol Encased Tall Coils without reported failure. | ||
| View original record | EFC. WB.11. X4079b 1.5.25. REMANOL ENCASED TALL COILS. X.4079b. ---------------------------------- These coils have now completed to date as follows :- TR1 14,942 miles TR2 19,530 " TR3 18,103 " TR5… | ||
| Scan284 | Instructing the fitment of a Redmanol encased ignition coil TR3 to chassis GF68. | ||
| View original record | X4079 To HHC. from EFC. c. Hs/TMW. EFC2/T1.5.25. X.4079. IGNITION COILS. We hand you herewith Redmanol encased coil TR3. Will you kindly have this put on the engine unit at present on chassis GF68, in… | ||
| Scan285 | The mileage records and reliability of Redmanol encased battery ignition coils. | ||
| View original record | To R. & E. from EFC. c. c. CJ. & PN. c. Da. Ry. c. Wor. Rg. X40796 EFC3/T4.5.25. X. 4079b -> REDMANOL ENCASED BATTERY IGNITION COILS. Further to our report EFC1/T14.10.24, the following table gives… | ||
| Scan286 | Requesting the exchange of a Remanol encased coil for a standard coil on a Goshawk chassis. | ||
| View original record | X4079 To RHC. from EFC. C. HS(struck through) TMW. EFC2/T4.5.25. X.4079b - REMANOL ENCASED COIL TR1. Would you kindly have coil TR1 (when removed from engine unit which is going into 4-GII) exchanged… | ||
| Scan287 | Experiments to reduce energy output in ignition coils, considering ballast resistance and finer windings. | ||
| View original record | To R. from EFC. c. CJ. c. Ev. X4079 EFC2/T20.5.25. RE IGNITION COILS. X4079 X8710 X4653 X4654 Reference your RL/M11.5.25, now that our ignition coils are consistently satisfactory from the point of… | ||
| Scan288 | Continued discussion on experimenting with the design of an iron core ignition coil. | ||
| View original record | Contd. -2- EFC2/T20.5.25. closed circuit type of coil somewhere, having observed sparks of greater utility (capably of overcoming leaky gaps) from such coils, though he does not express a definite… | ||
| Scan289 | Table detailing the particulars of resistances and inductances for primary and secondary Goshawk ignition coils. | ||
| View original record | X4653 X918 X4079 PARTICULARS OF RESISTANCES AND INDUCTANCES OF X.4079. PRIMARY AND SECONDARIES OF GOSHAWK IGNITION COILS. Coil. | PRIMARY | SECONDARY | Remarks. | Resis. (W) | Imped. at 50~ (W) |… | ||
| Scan290 | Table detailing the specifications for various coil primary windings. | ||
| View original record | X 465 X. 918 - COIL PRIMARY WINDINGS. References: X. 079 (struck out), X. 3173 (struck out), X. 3448 (struck out), X. 4273., X. 4595. | Coil. | Number of Turns. | Number of layers. | Dia. of wire. |… | ||
| Scan291 | On fitting an experimental Goshawk coil and the performance of the standard coil it replaced. | ||
| View original record | EFC. WR.36. V4079c 21.8.25. EXPERIMENTAL GOSHAWK COILS. X.4079c. X.A653. Coil FP.2 with reduced gauge of primary winding has now been fitted to CF.68, replacing coil TR3 (standard in Redmanol case)… | ||
| Scan292 | Instructions regarding improvements to coil base material and the moulding process. | ||
| View original record | ROLLS-ROYCE LTD. INSTRUCTIONS. X40796 To E.F.B. Order No. WB 43 Customer's No. X 4079 b&c Coil base material Redmanol powder is now purchased from America, manufactured by a reliable firm, and its… | ||
| Scan293 | Comparison of Redmanol and Stabalite materials for manufacturing coil cases. | ||
| View original record | RR 23B (150 BKS.) [BH57.29-6-20.] MP 224358 ROLLS-ROYCE LTD. INSTRUCTIONS. To 19__ Order No. coil cases Customer's No. Redmanol y could be made here at a much less cost & than the Stabalite ones which… | ||
| Scan294 | Instruction on manufacturing Stabalite cases and the liquidation of the Nestolite material manufacturers. | ||
| View original record | ROLLS-ROYCE LTD. INSTRUCTIONS. 19 To Order No. Customer's No. made as an almost finished article, doing away with the machining which has to be carried out on Stabalite cases when received from the… | ||
| Scan295 | Electrical experimental record sheet for a Tall coil in a 'Nestolite' case, model TN2. | ||
| View original record | ELECTRICAL EXPERIMENTAL RECORD SHEETS. Tall coil in "Nestolite" case. TN2. Date on. Location. Date off. REMARKS. Miles reading start. Miles reading finish. Miles covered. Total miles. 5-9-24 | lab |… | ||
| Scan296 | Electrical experimental record sheet for a Tall Coil in a 'Nestolite' case, part number TN1. | ||
| View original record | ELECTRICAL EXPERIMENTAL RECORD SHEETS. Tall Coil in "Nestolite" case .TN1. Date on. | Location. | Date off. | REMARKS. | Miles reading start. | Miles reading finish. | Miles covered. | Total miles.… | ||
| Scan297 | The experimental testing of Redmanol encased battery ignition coils. | ||
| View original record | X40796 To R & E. from EFC. EFC2/T23.9.25. c. CJ. c. Wor. c. Ry. c. RG. c. Da. c. Wd X. 4079b - REIMANOL ENCASED BATTERY IGNITION COILS. X8711 Refs. of previous reports:-EFC1/T14.10.24, EFC3/T4.5.25.… | ||
| Scan298 | Use of Redmanol instead of stabalite for coil cases. | ||
| View original record | Contd. -2- EFC2/T23.9.25. take place perfectly; the material of the moulded piece being therefore dielectrically and mechanically unsound. Redmanol coil cases could be made here at a much less cost… | ||
| Scan299 | Mileage of Freimanol encased coils up to 1st June 1926. | ||
| View original record | V4079 9.6.26. MILEAGES OF FREIMANOL ENCASED COILS UP TO 1.6.26. TR.1. 23,200 miles. TR.2. 19,530 " TR.3. 35,700 " TR.5. 8,500 " GP1.+ 14,000 " GP2. 7,865 " GP3. 6,500 " GP4.+ 4,221 " PR.1. 12,000 "… | ||
| Scan300 | Standardisation of chassis parts, specifically a moulded Redmanol case for an ignition coil. | ||
| View original record | RR 755 (10H) (DB130 12-9-24) MS 301225 X4079 COMPLETED 14.6.26 STANDARDISATION of CHASSIS PARTS. Date 31.5.26 Description of Parts: Moulded Redmanol Case for Ignition Coil. X No. 4079 Drawing No. 12… | ||
| Scan301 | Comparing the dimensions and properties of Redmanol and stabalite coil cases. | ||
| View original record | X4079 21.7.26. To EFC. From Mr.Brock. Herewith six Redmanol coil cases as per your request. If you compare the insulating properties of this material with cases of stabalite will you please remember… | ||
| Scan302 | Instructions for leakage tests of coil-cases moulded in Redmanol. | ||
| View original record | RR 286 (150 BKS.) (SH57.29-6-26.) MP 22435R ROLLS-ROYCE LTD. INSTRUCTIONS. To: EFC Order No.: AC.78 Customer's No.: X Leakage Tests of Coil-Cases. Six coil-cases moulded in Redmanol were received from… | ||
| Scan303 | Instructions for testing electrical leakage on a coated coil-case placed in a heated silica oven. | ||
| View original record | ROLLS-ROYCE LTD. INSTRUCTIONS. To Order No. Customer's No. 2. coating on the inside surface of the coil-case under test. The other side of the transformer supply was connected to a tin-foil coating on… | ||
| Scan304 | Instructions for a temperature and voltage leakage test on a coil-case, comparing Stabalite and Redmanol materials. | ||
| View original record | ROLLS-ROYCE LTD. INSTRUCTIONS. To__________________________________ Order No.____________________________ Customer's No. S a coil-case in the oven, and. starting from about 30°c, applying increasing… | ||
| Scan305 | Test results for leakage in coil cases at various temperatures, with notes on developing a production test. | ||
| View original record | RR 330 (100 BKS.) (SHS T. 29-6-20.) MP 224388 ROLLS-ROYCE LTD. INSTRUCTIONS. To _________ Order No. _________ Customer's-No. 4. Table of leakage measurements: Vertical Axis: Leakage (ma) at 2420 @ RMS… | ||
| Scan306 | Testing a case for leakage using electrodes and tin-foils, noting inconsistent results after heating. | ||
| View original record | ROLLS-ROYCE LTD. INSTRUCTIONS. To Order No. Customer's No. 5. 19 the outside of the case and one to spring outward on the inside, thus forming electrodes. The case which has shown the worst leakage… | ||
| Scan307 | Instruction regarding the 'curing' effect of prolonged or repeated heating on Redmanol material. | ||
| View original record | RR 208 (150 BKS.) (BH57.29-6-20.) MP 224356 ROLLS-ROYCE LTD. INSTRUCTIONS. To Order No. Customer's No. 6. 19 different materials. Possibly the subjection to prolonged or repeated heating had a… | ||
| Scan308 | Re-testing three Elo coil cases after they have been heated in an oven. | ||
| View original record | X4079 EFC. 29.10.26. X1573 These three Elo coil cases have been in our oven for about 5 weeks at various temperatures up to 95ºC. Perhaps you would like to test them again. E.J.Brock | ||
| Scan309 | Table detailing the specifications for various coil primary windings. | ||
| View original record | X4079 25.9.29. X.918 - COIL PRIMARY WINDINGS. X.4079, X.4273, X.3173, X.3445, X.4596, X.8710, X.4501. Short. Table of Specifications: Coil. | Number of turns. | Number of layers. | Dia. of wire. |… | ||
| Scan310 | Instruction sheet detailing the investigation of a faulty coil, No. 4554, returned from the Repair department. | ||
| View original record | RR 238 (150 BKS.) (D9 461-8-12 24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.7.B. Date: 19-5-1927 Order No. WC18 Customer's No. X 4079 Coil NO 4554 returned faulty from Repair dept. This coil was… | ||
| Scan311 | Instructions detailing the testing of an ignition coil to diagnose a fault. | ||
| View original record | RR 238 (150 BKS.) (DB 481-8-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. (2) To _________ 19__ Order No. _________ Customer's No. _________ We suggest that the fault on the ignition system of the… | ||
| Scan312 | To Mr. Brock regarding the return of three coil cases which passed testing. | ||
| View original record | X4079 To Mr. Brock. EFC4/T15.9.27. Herewith we return to you the three coil cases recently sent to us for test. We find these to be O.K. EFC. | ||
| Scan313 | Extract detailing Mr. Royce's requirements for the 'Goshawk II' electrical system. | ||
| View original record | X4081 Extract from E4/G31.3.21. RE VISIT OF MESSRS. HIVES & DAY TO W.W. ON 6-EX. MARCH 12TH 1921. (14) "GOSHAWK II" ELECTRICAL SYSTEM. X.4338. X.3915. X.4081. For operating the starter motor Mr. Royce… | ||
| Scan314 | Report of a visit to Messrs Lucas regarding the Goshawk starter motor and switchbox. | ||
| View original record | X4081 Extract from Tht2/CB12.7.21. X.3749. REPORT OF VISIT TO MESSRS LUCAS - JULY 11th 1921 GOSHAWK STARTER MOTOR. X.4342L. This was discussed at some length. Messrs. Lucas asked us if we had… | ||
| Scan315 | Drawing No. LeC.1456 for the 'BOSHAWK II' Switchbox. | ||
| View original record | To Da. from E. c. to CJ. c. to Wor. c. to Hs. c. to By. X.4081. E1/G29.9.21. X.4081 - RE "BOSHAWK II" SWITCHBOX. We send you herewith drawing No. LeC.1456 shewing the above. E. | ||
| Scan316 | Parts list for the 'Goshawk' 11 Switch Box, L&C 1603. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP18986 To RMC. Cr. to E.B. " E.G. " B.G. Mr. Brock. X4081 EXPERIMENTAL BY/WEM/HF19.12.21. H8 RECEIVED X. 4081 - "GOSHAWK" 11. SWITCH BOX. L&C 1603. In connection with… | ||
| Scan317 | Post-moulding milling and tapping operations on switch body inserts. | ||
| View original record | R.R. 238a (100 T) (S.H. 798. 10-12-30) G. 2048 - 2 - EXPERIMENTAL BY/WHR/19.12.21. Contd' Regarding D. 50351 Switch Body it should be noted that two of the inserts D. 50383/4 have a milling and… | ||
| Scan318 | The Goshawk II electrical equipment, discussing the placement of the dynamo switch and a size reduction for the ignition switch. | ||
| View original record | X4081 To Hs. from R. c. to CJ. c. to Wor. c. to EFC. c. to By. R1/G13.10.21. X.4421. X.4410. X.4081. RE "GOSHAWK II" ELECTRICAL EQUIPMENT. Regarding the electrical equipment, we find it necessary to… | ||
| Scan319 | Parts list for the Goshawk II Switch Box. | ||
| View original record | U/W. R.O. Group. X4081 EXPERIMENTAL FC BY/WER/L 15. 10. 21. RECEIVED X. 4081. "GOSHAWK" II. SWITCH BOX. In connection with the above Unit please receive herewith one blue print of each of the… | ||
| Scan320 | Parts list detailing drawing numbers, descriptions, materials, and quantities. | ||
| View original record | EXPERIMENTAL BY/WER1/EF15. 10. 21. Contd. D.50383 Anchor Block. S/M 201B 4 off. D.50385 Plunger Housing. B 215 1 off. D.50384 Insulation Bush for D.50379 Bakelite Micarta 8 off. D.50386 Plunger… | ||
| Scan321 | Instruction to halt work on the 'Goshawk' II Switch Box, as Mr. Royce has requested it be decreased in size by 10%. | ||
| View original record | To R.H.C. Ch-to D. E.D. Mr. Brock. X4081 EXPERIMENTAL BY/WER2/EF17. 10. 10. 21. X. 4081 "GOSHAWK" II. SWITCH BOX. With reference to the details for the above Switch which were issued with our memo… | ||
| Scan322 | Drawing LeC.1457 for the lettering on the Goshawk II switchbox, to be reduced to 90% of the original size. | ||
| View original record | To Da. from E c. to CJ. c. to Wor. c. to By. c. to Hs. X4081 E2/G19.10.21. X.4081 - RE "GOSHAWK II" SWITCH BOX* We send you herewith drawing LeC.1457 shewing the lettering for Goshawk II switchbox.… | ||
| Scan323 | Insulation dimensions for 'Goshawk II' electrical fittings, as specified by Mr. Royce. | ||
| View original record | X4081 To By. from E c. to CJ. c. to Wor. c. to Da. c. to EFC. X.4081 - RE "GOSHAWK II" ELECTRICAL FITTINGS. x4410 Regarding the question of insulation on "Goshawk II" electrical fittings, Mr. Royce… | ||
| Scan324 | Redesign of a lighting and ignition switch for the 'Goshawk II'. | ||
| View original record | To EY. from R. c. to CJ. c. to Wor. c. to Hs. c. to EFC. X.4081. RE LIGHTING AND IGNITION SWITCH FOR X.4338. "GOSHAWK II". X.4410 X.4421. We are redrawing this on the reduced scale but somewhat… | ||
| Scan325 | Electrical work, component design, and material sourcing for the 'Goshawk II' project. | ||
| View original record | X4081 To WOR. from R. c.c. to CJ. c.c. to Hs. c.c. to EFC. c.c. to By. c.c. to Wor. for Mr. Coverley. c.c. to " " Mr. Brock. ---------------------------------------------------------------- X.4338 -… | ||
| Scan326 | Instruction sheet accompanying a print for a revised Goshawk switchbox. | ||
| View original record | X. 4081 R.R. 26 10M Bks.) (SE 591 13-3-18). M.P. 189358 ROLLS-ROYCE LIMITED. EFC INSTRUCTIONS Dec. 13 '21 191 To Order No. Customer's No. Please receive herewith, for your information, 1 print of Leb… | ||
| Scan327 | Parts list for a 'Goshawk' 11 Switch Box, reference LEC 1503. | ||
| View original record | RMC. C. 60 B. E.O. HDQ X4081 EXPERIMENTAL BY/WER5/EF22. 12. 21. X. 4081 - "GOSHAWK" 11. SWITCH BOX. LEC 1503. In connection with the above unit and further to our memo BY/WER4/EF19. 12. 21. please… | ||
| Scan328 | Parts lists and progress for the 'Goshawk' 11 Switch Box assembly. | ||
| View original record | R.M.C. O. to IB. E.O. WD. EXPERIMENTAL DEC 29 1921 SH X.4081-BY/WERL/EF23. 12.21. X. 4081 - "GOSHAWK" 11. SWITCH BOX - SECTION 8160. LeC 1503. Please receive herewith one blue print of L.O.P. D.50344.… | ||
| Scan329 | Listing part numbers for a 'Goshawk' 11 Switch Box. | ||
| View original record | R.R. 526a (100 T.) (S.H. 798. 10-12-20) G. 2948 To H.R.C. (Struck through) C. to Hs. EXPERIMENTAL X4081 BY/WER2/EF20. RECEIVED HB DEC 28 1921 X. 4081 - "GOSHAWK" 11. SWITCH BOX. LeC 1503. Attached is… | ||
| Scan330 | The creation of a brass model of a Switch Box Handle for Mr. Royce's approval. | ||
| View original record | COPY X.4081. EXPERIMENTAL Da3/M16. 12. 21. R.R. 235a (100 T) (S.H. 728. 10-12-20) G. 2948 To BY. from Da. X4081 G.11. Switch Box. Referring to the drawing of the Switch Box which has recently been… | ||
| Scan331 | Extract detailing modifications to the dynamo, switchbox, and distributing board for the Goshawk Competition. | ||
| View original record | Y4087 Extract from R2/M29.12.21. RE GOSHAWK COMPETION. X.3485. X.4383. DYNAMO. This, with the altered drive to avoid the trouble of lining up and crankcase fumes (in the present simpler scheme) will… | ||
| Scan332 | Methods for marking conductors and terminals when detaching the Goshawk II switchbox. | ||
| View original record | X.4081. Extract from R7/M30.12.21. RE VISIT OF MESSRS HS. & HY TO WEST WITTERING ON WEDNESDAY, 21st. DECEMBER 1921. GOSHAWK II (7) DETACHING THE SWITCHBOX+ X.4081. It has been decided that the… | ||
| Scan333 | New drawings for a 'Goshawk' 11 Switch Box. | ||
| View original record | X4081 DEC. C. to D. E.O. HPS. EXPERIMENTAL BY/WKR7/EF3. 3. 22. X. 4081 - "GOSHAWK" 11. SWITCH BOX - SEC. 8160. In connection with the above Unit we handed to you yesterday one blue print of the… | ||
| Scan334 | Inquiring about making the locked ignition switch of the Goshawk switchbox adaptable to the magneto. | ||
| View original record | X 4081. To E. from EFC. EFC2/T14.7.22. X.4081 - GOSHAWK SWITCHBOX+ We should like to know what it is intended to do with regard to making the locked ignition switch of this switchbox adaptable also to… | ||
| Scan335 | Mr. Royce's feedback on the Goshawk ignition keys, steering wheel, and hand brake lever. | ||
| View original record | To BJ. from E. c. to Wor. By. c. to Hs. EP. V4081 E1/M20.7.22. GOSHAWK IGNITION SWITCH & BONNET KEYS X.4081. In reply to your memo. BJ15/H18.7.22. Mr. Royce remarks as follows in connection with the… | ||
| Scan336 | Proposing a modification to the Goshawk switch box for magneto ignition. | ||
| View original record | To HFG. from E. X4081 E1/M21.7.22. C. to SJ. C. to W. C. to Hy. C. to HB.✓ C. to Sp. X4081 - GOSHAWK SWITCH BOX - MAGNETO IGNITION. In reply to your memo. HFG2/T14.7.22., Mr. Royce proposes that we… | ||
| Scan337 | Replacement of unreliable Lucas ignition switchboxes with Goshawk or Delco parts for the 40/5P model. | ||
| View original record | x4081 Extract from R3/M1.9.22. IGNITION SWITCH. X.4081. X.3749. Regarding the switchbox and cutout, and distribution board, the English production should use those made for the Goshawk with such… | ||
| Scan338 | The despatch of a Goshawk Ignition switch free of charge. | ||
| View original record | X4081 BP. from Hs. c. to CHAT. Hs7/LG26.9.22. We are sending into the Stores for despatch to R. W.W. 1 Goshawk Ignition switch. Will you please issue the necessary instructions to stores. No charge.… | ||
| Scan339 | Telegram received by telephone requesting a switch box for a Goshawk 2 engine. | ||
| View original record | R.R. 144A (100B.) SE 867. 9.7.18 MP 193871. X4081. ROLLS-ROYCE, LIMITED. TELEGRAM RECEIVED BY TELEPHONE. Time Received 12 55. Date 26 9 22. To Roycar Derby. By JNB. from Chichester / 12. 29. Hives… | ||
| Scan340 | Telegram received by telephone regarding a Goshawk switchbox and magneto switch operation. | ||
| View original record | R.R. 144A (100B.) SE 867. 9.7.18 MP 193871 M.D X4081 ROLLS-ROYCE, LIMITED. TELEGRAM RECEIVED BY TELEPHONE. RECEIVED Time Received 9.50 Date 27.9.22 To Roypas Derby By EW from 9.30 Chichester T Bailey,… | ||
| Scan341 | Requested modifications for the Goshawk Ignition & Lighting Switch, with diagrams. | ||
| View original record | To EFC. from R. c. to CJ. Wor. By. c. to Ws, Mr. Brock. X4081 RI/M29.9.22. X.43485 - GOSHAWK IGNITION & LIGHTING SWITCH X.4081. I am extremely pleased with this, and regret we have to modify it -… | ||
| Scan342 | Technical report detailing potential failures and suggested improvements for a switch, its components, and casing. | ||
| View original record | (2) (3) The greatest and perhaps only fear of failure in this switch is that the moving piece which makes contact may be too high or too low, and the brushes if rigid may not make contact either on… | ||
| Scan343 | Postscript detailing a screw failure due to badly formed spring washers and recommending a material and length modification. | ||
| View original record | (3) P.S. With reference to this section dealing with spring washers, it was found on the model we received here that the head of one of the screws had been burst from the shank by the uneven loading… | ||
| Scan344 | Telegram regarding the quality of switchbox screws and spring washers. | ||
| View original record | X.4081. To Rofcar Derby. from Chichester 12 36. By MB. Time Received 1.0. Clarke re switchboxes screws are brittle will they not do better in steel they are also too short and spring washers are badly… | ||
| Scan345 | Modification to the Goshawk 11 switch-box for magneto ignition wiring to prevent tampering. | ||
| View original record | TO BY. FROM E. c. to CH. c. to HCH. c. to HS. c. to RPC. ✓ c. to SP. X4081 E1/143.10.22. X.4081. GOSHAWK 11. SWITCH-BOX TO ACCOMMODATE MAGNETO IGNITION. We send you herewith drawing No. LeC 1632,… | ||
| Scan346 | Suggested improvements to the Goshawk Ignition & Lighting Switch. | ||
| View original record | R.R. 199 (250T) (S.D.676 19-7-17) MP 180865 H6 RECEIVED OCT 6 1922 X4081 R. C.O. E. EFC BY2-P6.10.22. GOSHAWK IGNITION & LIGHTING SWITCH. With reference to R1/M29922 we have examined all the points… | ||
| Scan347 | Continued memorandum discussing issues with spring washers and a material change for terminal pad screws. | ||
| View original record | R.R. 199 (F) (S.D.676 19-7-17) MP 180865 BY2-P6.10.22. contd. - 2 - (6) Spring Washers. I have examined a delivery of the washers in question and find your complaints are justified, even in the bulk.… | ||
| Scan348 | Requesting blueprints and standard insert parts for a Hawk 11 switchbox for magneto ignition. | ||
| View original record | To RHC. from BY/Ds. BY/Dsl/1113.10.22. C. EFC. C. Ed. C. IB. 14081 EXPERIMENTAL RECEIVED 14 OCT HS RE HAWK 11 - SWITCHBOX FOR MAGNETO IGNITION - SEC:816C. Please receive herewith one Blueprint of the… | ||
| Scan349 | Blueprint request and parts list for a Goshawk II Switchbox for Magneto Ignition. | ||
| View original record | To R.H.C. From BY/Ds. C. EFC. C. FD. C. SD. EXPERIMENTAL X 4081 BY/DsL/ML17.10.22. RE GOSHAWK II - SWITCHBOX FOR MAGNETO IGNITION. (SEC:8160) Please receive herewith one Blueprint of the following… | ||
| Scan350 | Standardisation document detailing a modification to the ignition switch for the Goshawk model. | ||
| View original record | R.R. 756 (5 H) (S.J. 191, 15-10-21.) G. 3057. X4081 GOSHAWK COMPLETED 24.11.22. STANDARDISATION of CHASSIS PARTS. Description of Parts. MODIFICATION TO IGNITION SWITCH. Origin. In order to arrange the… | ||
| Scan351 | Fitting of switchboxes for magneto ignition to three specific cars. | ||
| View original record | X. 4081. 1.12.22. X. 4081 - SWITCHBOX FOR MAGNETO IGNITION In accordance with instructions contained in By/Dsl/ML13.10.22, three of the above switchboxes have been fitted to the following cars :- 5… | ||
| Scan352 | Proposal to modify the Goshawk switchbox mounting to allow wiring to be completed at the Derby factory. | ||
| View original record | X.4081. Extract from Da/Ev3/M5.12.22. X.4219. (3) GOSHAWK SWITCH. X.4081. Sales wish now to adopt our suggestion of a year ago and to make the switchbox on the instrument board enter the board from… | ||
| Scan353 | New ignition scheme for the Boshawk, using one big and one miniature plug, and a three-position switch. | ||
| View original record | Extract from. X4081 R6/M19.1.23. RE IGNITION X.3485. X.4560. X.4091. Now in the case of the Boshawk, the cylinder head is so small that 2 ordinary sized plugs cannot be fitted, but after Hs. had… | ||
| Scan354 | New method for fixing a switchbox to the instrument board and requesting a modified unit. | ||
| View original record | EXPERIMENTAL X4081 To R.H.C. [Struck through] C. EFC. BY/Ds3/ML1 2.2.23. X.4081 - SWITCHBOX. In accordance with R's. wishes, we have schemed out a method of fixing the Switchbox from the rear of the… | ||
| Scan355 | Enquiry about the instrument light switch on the Goshawk. | ||
| View original record | X4081 To By.) from EFC. Hr.) EFC3/T13.4.23. X.4081 - GOSHAWK SWITCHBOX. X4067 With reference to your telephone enquiry as to whether anything has been done to enable the instrument light switch on the… | ||
| Scan356 | Serving as a reminder to follow up on the decision to source a permanent switch for the 20 HP instrument board light. | ||
| View original record | X4081 To Hs. (at Le Canadel). EFC2/T13.4.23. c. to E. _________________________ X4081 20 HP. INSTRUMENT BOARD LIGHT SWITCH. X4067 ____________________________________________ You will remember that it… | ||
| Scan357 | Points for consideration and experiment on dynamo and other electrical equipment. | ||
| View original record | X4081 TO EFC. FROM R. c. to CJ. BJ. c. to MON. MY. MS. With reference to the dynamo and other electrical equipment, the following are some points for consideration and experiment. (1) Will the heating… | ||
| Scan358 | Instruction on the required mechanical inspection for the R.R. Goshawk switchbox contacts after assembly and before final testing. | ||
| View original record | X4081 To Wor/Mr. Brock. c. By. EFC1/T13.6.23. X.4081 - R.R. GOSHAWK SWITCHBOX. After the assembly of the internal switchbox mechanism, and previous to fitting in case and subsequent final test, as… | ||
| Scan359 | Recurring failures in the Goshawk Switchbox and a reminder for careful inspection. | ||
| View original record | X4081 EFC1/T29.8.23. To BY. from EFC. c. Sft. for Mr. Brock. X.4081 - R.R. GOSHAWK SWITCHBOX. A short while ago we had a case of a switchbox, some of the switch contacts of which were not making… | ||
| Scan360 | Instruction note regarding the diagnosis and repair of a faulty switch. | ||
| View original record | RR. 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 X. 4081. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To. EFC 30-8-1923 Order No. Customer's No. Herewith Switch 10B that we received from you yesterday. I think… | ||
| Scan361 | Standardisation document for a chassis part, detailing an alteration to the switch box mounting. | ||
| View original record | R.R. 752 (10H) (SL 72 16-7-23) MP 274954s. X4081 COMPLETED 27.11.23 STANDARDISATION of CHASSIS PARTS. Date 31.10.23 X No. 4081 Description of Parts. SWITCH BOX arranged to be put in from the back of… | ||
| Scan362 | Returning a standardisation sheet with costs filled in for a switch box arrangement. | ||
| View original record | Hs. COPY. MY/JW/N1/139A/M5.11.23. X.4081 - SWITCH BOX arranged to be put in from the back of the Instrument Board. We return herewith the above Standardisation Sheet, with costs filled in. The value… | ||
| Scan363 | Response to a works complaint about a sticking gauge light push button, providing blueprints for a bush modification. | ||
| View original record | X4081 C. EFC. BY/RD3/ML.8.12.23. X.4081 - SWITCHBOXES. In response to a Works complaint that the Guage light push button has been sticking due to corrosion, we send you herewith 1 Blueprint of the… | ||
| Scan364 | Alteration of a switchbox, including the new position functions and wiring considerations for the Klaxon horn. | ||
| View original record | SECRET. To EFC. from R. c. CJ. BJ. RG. c. E. DA. BY. c. Hs. PN. X4081 E. A. C. R4/M17.12.23. SWITCHBOX. X.9730. X.4081. For EAC.1 & LI and probably for Goshawk we are altering the switchbox in the… | ||
| Scan365 | Experiment testing an alternative connection for the cutout shunt switch on a 20 HP chassis to reduce sparking. | ||
| View original record | EFC. AC.18. X4081 29th May, 1924. X.4081. X.4338. X.4410. CUTOUT SHUNT SWITCH CONNECTION. 20 HP An experiment has been tried to find whether connecting the shunt winding of the cutout of the 20 HP.… | ||
| Scan366 | Questioning the delay in standardizing a new, advantageous switchbox design for 40/50 & 20 HP models. | ||
| View original record | Y4081 To EY. from DA/EV. c. to BJ. R. Hs. DA/EV1/M10.11.25. 40/50 & 20 HP. SWITCHBOXES. X.4186. X.8730. X.4081. X.5730. We have for some time had a design of switchbox which enters from the back of… | ||
| Scan367 | Switchbox standardisation and the use of dummy instruments for a special job car. | ||
| View original record | To DA/EV. from Hs. [Handwritten]: 4081 Hs10/LG13.11.25. SWITCHBOX. [Handwritten, struck-through]: X. 4081 X 8730 The standardisation sheet for the switchbox entering from the back of the instrument… | ||