Rolls-Royce Archives
| Identifier | Entry | ||
| Scan0 | The contents and model construction for a box of small tools and spares for the Goshawk engine. | ||
| View original record | TO BY. FROM E. c. to CJ. MOR. c. to HS. EP. EPC. Lec 1649 - BOX OF SMALL TOOLS & SPARES FOR GOSHAWK. X4083 X4084 We send you herewith the above drawing shewing a box containing the following spares:-… | ||
| Scan1 | P.&R. battery for the 40/50 model, focusing on capacity versus weight and charging solutions. | ||
| View original record | R.R. 235 A (100 T) (S.F. 846 6-8-19) G. 2460. ORIGINAL TO EFC. FROM DA. DA1/M1. 11. 22. RECEIVED NOV 1922 X.3398 - P.&.R.BATTERY FOR 40/50. In reply to your EFCL/T301022., Mr. Royce has definitely… | ||
| Scan2 | Enquiry for a simple rectifier and opinions on battery size. | ||
| View original record | R R 235 A (100 T) (S.F. 846 6-8-19) G. 2460. (2) still use this idea. This is the origin of the enquiry for a simple rectifier that we have recent-ly sent to you. I have not heard Mr. Northey's views… | ||
| Scan3 | Solutions for noise issues with spring shackles and front horns, proposing the use of hardened steel washers. | ||
| View original record | ORIGINAL TO BA. &. BY. FROM R. c. to CJ. BJ. HS. EP. c. to PN. HM. BR. OY. [STAMP: RECEIVED NOV 9 1922 Hs] RE. SPRING SHACKLES AND FRONT HORNS. X 2628 X 1609 I understand that increased difficulty is… | ||
| Scan4 | Telegram suggesting an experimental modification to the Goshawk engine ignition system. | ||
| View original record | POST OFFICE TELEGRAPHS No. of Telegram: 41 Office Stamp: DERBY 9 NO 22 Sent: 12-03 M Handed in at: Chichester T. 65 Words: 65 Received here at: 12 19 M This Form must accompany any inquiry respecting… | ||
| Scan5 | Post office telegram confirmation discussing a fault, suggesting mahogany or teak wood dust as a material and checking for induction or leakage. | ||
| View original record | Chichester Royce Q colouring stop suggest mahogany or Teak wood Dust without colouring stop distribution must also be wrong stop easily proved if fault is induction or leakage stop are cases properly… | ||
| Scan7 | Telegram from Royce requesting clarification on the cause of the 'Goshawk phenomenon'. | ||
| View original record | R.R. 144A (100B.) SE 867. 9.7.18 MP 193871 ORIGINAL ROLLS-ROYCE, LIMITED. TELEGRAM RECEIVED BY TELEPHONE. Time Received: 1.16 Date: 10.11.22 To: Roycar Derby D213 By: HWB from: Chichester 12.36 Clarke… | ||
| Scan8 | Reduced insulating properties of bakelite at increased temperatures in a Goshawk coil. | ||
| View original record | R.R. 385A (100 T) (S. H. 159. 11-8-20) G. 2800 ORIGINAL TO EFC. FROM R. R2/M10.11.22. 4 X.3485 X4079 GOSHAWK COIL. It was quite unsuspected, if you find as anticipated that the insulating properties… | ||
| Scan9 | Proposed methods for improving the Goshawk's side steering tube pendulum joint. | ||
| View original record | TO BY. FROM DA. c. to CJ.✓ WOR. HS. ORIGINAL DA5/M11.11.22. GOSHAWK - IMPROVED JOINT TO N. SCH. 1315, AT PENDU-Y4265 LUM END OF SIDE STEERING TUBE. In reply to By3/P81122., we agree that there is a… | ||
| Scan10 | Modification to the 40/50 front wheel brakes with a pull-off spring. | ||
| View original record | ORIGINAL. TO BY. FROM DA. c. to CJ. c. to WOR. c. to HS. X9940 X4428 40/50 FRONT WHEEL BRAKES. We send herewith N.scheme 1345 shewing a modification to N.scheme 1317 to provide a pull-off spring on… | ||
| Scan11 | Modifications to the 40/50 front wheel brakes and steering lever. | ||
| View original record | ORIGINAL TO BY. FROM DA. DA4/M11.11.22. C. to CJ. C. to WORT. C. to HS. ✓ X9940 40/50 FRONT WHEEL BRAKES. ~~Autocar~~ We send herewith N.scheme 1348 shewing the top steering lever modified to be of… | ||
| Scan12 | New scheme (N.sch. 1344) for a modified front axle fitted with front wheel brakes for the Goshawk 11 model. | ||
| View original record | TO BY. FROM DA. C. to GJ. C. to WOR. C. to HS. ✓ ORIGINAL. DA2/M11.11.22. GOSHAWK 11. FRONT WHEEL BRAKES. V4428 We send herewith N.sch. 1344 shewing the modified front axle fitted with front wheel… | ||
| Scan13 | Mr. Royce's disapproval of a Lucas scheme for carrying spare lamp bulbs for the Goshawk 11. | ||
| View original record | R.R. 235E (100 T) (S.H. 798. 10-12-20) G. 2948 ORIGINAL COPY 3 TO BY. FROM E. c. to GJ. HS. EP. GOSHAWK 11. SPARE LAMP BULBS. x357/b In reply to your By12/P81122. Mr. Royce does not like the lucas… | ||
| Scan14 | Electrostatic and dielectric losses in the Goshawk Ignition Coil and the choice of materials for its casing. | ||
| View original record | R.R. 285A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO EFC. FROM R. R1/M11.11.22. X.4079. GOSHAWK IGNITION COIL. X. 3513. You certainly seem right in assuming that it is not simple electric leakage… | ||
| Scan15 | Coil insulation materials and sparking plug experiments for the Goshawk engine. | ||
| View original record | (2) the amount of any known material the better; and metal out- side the insulation would be disastrous. There seems little to choose between stabilite and ebonite and pure rubber, and par- affin wax.… | ||
| Scan16 | Coil failures, suggesting improved insulation using ebonite or stabilite tubing and isolating it from metal components. | ||
| View original record | R.R. 985A (100 T) (S. H. 159, 11-8-20) G. 2800 (3) temperatures the ballast resistance has increased so that there are other phenomenon as well as the increased electrostatic losses, which might… | ||
| Scan17 | Suggestions for the design of Goshawk and other battery ignition systems to prevent energy loss. | ||
| View original record | R.R. 255A (100 T) (S&H. 159. 11-8-20) G. 2300 TO EFC. FROM R. c. to CJ. WOR. PN. c. to BY. HS. EP. R1/M13.11.22. RE. GOSHAWK AND OTHER BATTERY IGNITIONS. The phenomenon found in the Goshawk suggests… | ||
| Scan18 | Technical discussion on testing ignition coil materials and suggesting modifications to improve insulation and reduce energy loss. | ||
| View original record | R.R. 285A (100 T) (S.H. 159, 11-8-20) G. 2800 (2) (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… | ||
| Scan19 | Request for comparative data on Stabilite and Mouldensite coils to establish a standard figure of merit. | ||
| View original record | R.R. 285A (100 T) (S.H. 159. 11-8-20) G. 2800 (3) MR. Elliott is preparing a drawing of the experimental coil which I hope you will be able to put through quickly. I should be glad if you could send… | ||
| Scan20 | Approval process for standardisation sheets, specifically for the deletion of a reverse trigger and a generator drive brake. | ||
| View original record | R.R. 285A (100 T) (S. H. 159. 11-8-20) G. 2800 TO HS. FROM RS. ORIGINAL RS1/M14.11.22. STANDARDISATION SHEETS. (1) Deletion of the trigger on change speed lever for the reverse. (2) Brake for… | ||
| Scan21 | Proposal to fit a standby magneto ignition on the 20 HP car for foreign markets. | ||
| View original record | TO BJ. FROM R. c. to CJ. WOR. c. to HS. BY. c. to EP. PN. RE. MAGNETO FOR 20.HP. CAR. X 3551 Replying to your BJ15/H91122., apparently the only thing we can do is to fit the cars for abroad with a… | ||
| Scan22 | The preference for magneto ignition over battery ignition and its implementation. | ||
| View original record | (2) It is therefore to my mind much more preferable, assuming that it is necessary to keep the supply of electric- ity in working order for the lighting of the car. In conclusion I think we ought to… | ||
| Scan23 | From RS to HS confirming Mr. Royce's agreement on a change speed lever design. | ||
| View original record | R.R. 235B (100 T) (S.H. 798. 10-12-20) G. 2948 ORIGINAL TO HS. FROM RS. RS2/M15.11.22. CHANGE SPEED LEVER WITHOUT TRIGGER FOR REVERSE. X3462 Mr. Royce agrees with your memo. Hs1/LG131122, on the above… | ||
| Scan24 | Improvements to a Goshawk 11 battery ignition coil to reduce energy leakage. | ||
| View original record | R.R. 285A (100.T) (S.H. 159, 11-8-20) G. 2800 4 TO EFC. FROM R. R1/M15.11.22. c. to CJ. PN. c. to HS. BY. EP. [Stamp: RECEIVED NOV 17 1922 ORIGINAL] | ||
| Scan25 | Improving engine wiring, coil design, and materials 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… | ||
| Scan26 | Standardisation sheets for vehicle components like ignition units, handles, and gears. | ||
| View original record | R.R. 285A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO HS. FROM RS. RS1/M15.11.22. STANDARDISATION SHEETS. Referring to our RS2/M14.11.22., enclosed herewith are standardisation sheets for:- (1)… | ||
| Scan27 | Telegram about testing a 'Goslank' coil to determine the advantages of 'hedgehogging' the core. | ||
| View original record | R.R. 144A (100B.) SE 867. 9.7.18 MP 193871. ROLLS-ROYCE, LIMITED. X4079. F D. TELEGRAM RECEIVED BY TELEPHONE. RECEIVED. Time Received: 1.30. Date: MAY 11 22. To: Roycar Derby. By: NB. from: Chichester… | ||
| Scan28 | Telegram from Royce regarding design modifications involving extra core length to facilitate connections. | ||
| View original record | R.R. 144A (100B.) SE 867. 9.7.18 MP 193871 ROLLS-ROYCE, LIMITED. TELEGRAM RECEIVED BY TELEPHONE. Time Received Date To By from 2 Handwritten message: at one end and giving extra length of core to… | ||
| Scan29 | Requirements and issues for the Goshawk engine ignition coil. | ||
| View original record | R.R. 385A (100 T) (S.H. 159, 11-8-20) G. 2800 TO EFC. FROM R. ORIGINAL R1/M16.11.22. 9 Y4079 GOSHAWK COIL. I have not yet had an advice of a good coil for the Goshawk which is here. I think you ought… | ||
| Scan30 | Telegram about testing Goshawk coils, specifically the 'hedgehogg' core design and the effect of increased dimensions. | ||
| View original record | To: Roycar Derby. Clarke goshawk coil test if hedgehogg the core is a definite advantage also test if any advantage in increased core section and coil lengths we propose cancelling hedgehogg at one… | ||
| Scan31 | Telegram regarding a design suitable for paraffin wax filling. | ||
| View original record | Office of Origin and Service Instructions: Chichester T Sent: 1.25 M To: y/370 Words: 52 Received here at: 1.44 M Office Stamp: DERBY 16 NO 22 H Message: Roycar Derby II making design suitable for… | ||
| Scan32 | From DA to HS requesting the collection of personal items from Spondon. | ||
| View original record | R.R. 235B (100 T) (S.H 798. 10-12-20) G. 2948 ORIGINAL. TO HS. FROM DA. DA2/M16.11.22. If the "Hawk" is coming down within the next few days, as we rather gathered from what you said when you were… | ||
| Scan33 | P. & R. battery, favouring saving weight over increasing capacity. | ||
| View original record | R.R. 285A (100 T) (S.H. 159. 11-8-20) G. 2800 ORIGINAL. TO EFC. & PN. from R. c.c. to CJ. BJ. EP. Hs. X 3398 P. & R. BATTERY. It is understood between us, including Mr. Day that we have no objection… | ||
| Scan34 | Preliminary drawing for the Heron four-wheel brakes, hand brake operating gear, and Servo motor. | ||
| View original record | ORIGINAL. TO BY. FROM DA. DA1/M18.11.22. c. to GJ c. to HGR. c. to HS. ✓ HERON FOUR WHEEL BRAKES. V4550 Please receive N.sch. 1351 showing the hand brake operating gear and some preliminary… | ||
| Scan35 | Trade-offs of using a P. & R. battery, focusing on weight versus capacity and reliability. | ||
| View original record | TO EFC. & PN. [EFC. is struck through] c. to CJ. BJ. from RO [struck through] By. EP. Hs. ORIGINAL [stamped] P. & . R. BATTERY. It is understood between us, including Mr. Day that we have no objection… | ||
| Scan36 | Telegram detailing the location of a test coil and the plan to measure its temperature. | ||
| View original record | Roycar Derby. Clarke test coil located Base two inches above ignition power face centre 4 1/2 inches further out than Power and opposite wheelcase joint endeavour to find Temperature of coil in this… | ||
| Scan37 | Correcting a measurement from four and a half inches to three and a half inches for the Goshawk Coil. | ||
| View original record | R.R. 235B (100 T) (S.H. 798. 10-12-20) G. 2948 C.R.H.C. X TO EFC. FROM RS. ORIGINAL GOSHAWK COIL. RS1/M21.11.22. X4079 Regarding our wire of yesterday, would you please note that it has been… | ||
| Scan38 | From RS to HS regarding Mr. Royce's opinion on the commercial viability of extra small plugs. | ||
| View original record | R.R. 235B (100 T) (S.H. 798. 10-12-20) G. 2948 ORIGINAL TO HS. FROM RS. RS2/M22.11.22. X4560 (except interest) Mr. Royce thinks that it is of little use/to do anything with the extra small plugs, as… | ||
| Scan39 | Controls for the Goshawk II dipping headlights. | ||
| View original record | R.R. 235B (100 T) (S.H. 798. 10-12-20) G. 2948 ORIGINAL TO BY. FROM DA. c. to Cdr. Wcrk. HS. DA4/M22.11.22. RE. GOSHAWK 11. DIPPING HEAD LIGHTS. X4555 We send herewith N.sch. 1355 showing the controls… | ||
| Scan40 | Proposed design for dipping head lights and collaboration with lamp manufacturer Lucas. | ||
| View original record | TO EY. FROM DA. c. to CJ. WOR. HS. ORIGINAL GOSHAWK 11. DIPPING HEAD LIGHTS. X4555 We send herewith N.sch. 1354 showing the arrangement of head lights pivoted about their centre of gravity so as to be… | ||
| Scan41 | The implementation of a larger fan with spring tightening for the fan belt on all production Goshawk engines. | ||
| View original record | TO BY. CJ. BJ. FROM R. HS. HH. ORIGINAL R7/M23.11.22. GOSHAWK X.4237 It is understood that all production Goshawks will have the larger fan with spring tight- ening of the fan belt as on Lec 1629.… | ||
| Scan42 | Present and future modifications to the Goshawk engine's ignition coil. | ||
| View original record | TO HY. - FROM R. C. to CJ. C. to RV. C. to WORT. C. to PN. C. to HJS. C. to EPC. ✓ C. to RF. X4049 GOSHAWK IGNITION Apparently it will cause considerable expense to alter the position of the coil, but… | ||
| Scan43 | Testing a Westinghouse Vibrator for dynamo control on the Goshawk II lighting system. | ||
| View original record | R.R. 285A (100 T) (S.H. 159. 11-8-20) G. 2500 TO EFC. FROM R. ORIGINAL. R1/M30.11.22. 4 C. to CJ. C. to WCR. C. to HS C. to FP. RE. GOSHAWK II. LIGHTING. X402 X4031 With regard to the question of… | ||
| Scan44 | Requesting experiments on the Goshawk engine ignition system, focusing on the stabilite coil and dry batteries. | ||
| View original record | TO EFC. FROM R. c. to CJ. c. to WOR. c. to EP. c. to HS. c. to PN. ORIGINAL X3485 GOSHAWK IGNITION. X4079 X4273 I should like you to find at what temperature the stabilite coil works when fixed in the… | ||
| Scan45 | The expected designs for a brake on the generator drive and a bonnet fastener. | ||
| View original record | E. from Hs. ORIGINAL. Hsl/LG1.11.22. GOSHAWK. X4241 [crossed out] X4257 With reference to the points raised during my recent visit to W.W. We are assuming that we shall shortly receive from you a… | ||
| Scan46 | External voltage and current regulators for chassis dynamos. | ||
| View original record | To R. & E. from EFC. c. to CJ. & FN. c. to Hy. & EP. c. to Rg. & Da. EFC/T3.11.22. ORIGINAL X.1402 - EXTERNAL VOLTAGE AND CURRENT REGULATORS FOR CHASSIS DYNAMOS. Hs. tells me you have again under… | ||
| Scan47 | Dynamo protection, fusing systems, and the volt-ampere characteristics of 'inherently controlled' dynamos. | ||
| View original record | Contd. -2- EFC1/T3.11.22. current to remain at a reasonable value (either steady or falling) for further increase of speed, after the maximum output has once been reached. In order to afford… | ||
| Scan48 | The requirements for dynamo and battery charging systems and their control methods. | ||
| View original record | Contd. -3- EFC1/TS.11.22. If the battery alone is on circuit, this means that the charging current increases as the battery reaches the end of its charge - a very undesirable condition. The true… | ||
| Scan49 | Description of the operating principles of automatic regulators for dynamo output. | ||
| View original record | Contd. -4- EFC1/T3.11.22. regulator is at any rate in principle the ideal arrangement, it being possible to arrange this to automatically secure a dynamo output always in conformity with the demand of… | ||
| Scan50 | The regulation of dynamo output for a chassis electrical system. | ||
| View original record | Contd. -5- EFCL/T3.11.22. should be held exactly constant. Neither of these extreme cases, however, is suitable for a chassis system. It is more suitable to control the output of the dynamo to some… | ||
| Scan51 | Comparative analysis of various dynamo and regulator systems, with a detailed description of the Aero type U.B. | ||
| View original record | contd. -6- EFC1/T13.11.22. (1) Aero type U.B. dynamo & regulator. (Loaned to us for expl. purposes by F.H.) Single pair of carbon contacts with varying press; Resis. as shunt across field coil & also… | ||
| Scan52 | Experiments and bench tests of an R. Bosch dynamo and regulator. | ||
| View original record | Contd. -7- RFCI/T3.11.22. a small arcing effect occurs. The open circuit voltage control of this is not very flat but grows considerably with the speed. The curves of ampere output for the controlled… | ||
| Scan53 | The performance and issues with six-volt and twelve-volt Bijur electrical sets. | ||
| View original record | Bijur. A six-volt Bijur set which was run for a considerable time on 49-GB behaved, according to all reports, very well. The operating coil in this instance would be voltage only, but since the… | ||
| Scan54 | Comparison of Liberty, Scott, and Westinghouse dynamo and regulator systems. | ||
| View original record | EFC1/T3.11.22. -9- is due to the service system and the ease with which a faulty regulator can be changed. Liberty. The main operating coil is across the voltage of the system. There is a… | ||
| Scan55 | Analysis of a vibrator regulator's performance and a proposal for designing a new one to resolve issues with battery charging and dynamos. | ||
| View original record | Contd. -10- EFC3/T3.11.22. and vibrator regulator respectively. There is a resistance in parallel with the vibrator metallic contacts, also a condenser in series with a resistance across these… | ||
| Scan56 | Suggestion to experimentally study regulators and develop a new design to prolong battery life. | ||
| View original record | Contd. -11- EFC/13.11.22. such a method of control, as one which would prolong the life of their batteries. We suggest that we should now again take up experimentally the study of such regulators as… | ||
| Scan57 | Responding to a telegram about a Goshawk battery ignition coil fault, discussing insulation and colouring materials. | ||
| View original record | ORIGINAL TO: - R. from EFC. c. CJ. c. Wor for Mr. Brock. EFC/T9.11.22. X.3485 - GOSHAWK BATTERY IGNITION. x4079 Your telegram reading :- "CLARK GOSHAWK IGNITION STOP SUGGESTED TO HIVES EXPERIMENTALLY… | ||
| Scan58 | Alternative materials such as wood dust, Elo, and Bakelite for use in coil cases. | ||
| View original record | Contd. -2- 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 present wood flour… | ||
| Scan59 | Battery ignition issues on the Goshawk engine, specifically electrical effects from the coil case at high temperatures. | ||
| View original record | ORIGINAL To R & E. from EPC. c. CJ. & PN. c. Hy. & EP. c. RG. & Da. c. Hdr.for Mr. Brock. EFCL/T9.11.22. X.3485 - BATTERY IGNITION ON GOSHAWK. X4079 Further to our EFCL/T28.10.22, a further… | ||
| Scan60 | Experiments with Goshawk and other coils, focusing on the electrical characteristics of case materials. | ||
| View original record | Contd. -2- EFCL/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… | ||
| Scan61 | Investigation into coil failures, specifically the effects of temperature, casing materials, and condenser action causing electric shocks. | ||
| View original record | EPC1/T9.11.22. -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 Klo cases, the effect is produceable by running… | ||
| Scan62 | Experiments to improve coil insulation and reduce dielectric loss using materials like mouldensite, bakelite, and paraffin wax. | ||
| View original record | -4- dielectric loss. This applies more particularly to the Klo cases which have so far been standard. It is anticipated that we may effect an improvement either with American bakelite or mouldensite,… | ||
| Scan63 | Analysis of an electrical effect on ignition coils, comparing different case materials and mounting methods. | ||
| View original record | -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, no effect being… | ||
| Scan64 | Analysis of D.C. leakage and insulation properties of a coil, particularly concerning the effects of temperature on bakelite components. | ||
| View original record | Contd. -6- "FCL/TG.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… | ||
| Scan65 | Ignition coil failure analysis, testing results with paraffin wax insulation, and proposing rubber sheathing as a solution. | ||
| View original record | Contd. -7- EFCL/T9.11.22. 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… | ||
| Scan66 | Experiments with ignition coils, comparing turn counts, insulation, and materials like bakelite and mouldensite. | ||
| 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 2-EX during the 10,000 mile test and it may be considered that such a coil is satisfactory… | ||
| Scan67 | Notes from further experiments on ignition coils, discussing different materials and failure conditions. | ||
| View original record | EFC3/19.11.22. 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… | ||
| Scan68 | The test results of a coil and future plans for coils 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 [struck through] satisfactorily [handwritten]. (7) Steps are immediately being taken to… | ||
| Scan69 | Reporting the failure of a modified fixing for Goshawk steering during a bump test. | ||
| View original record | To R. from Hs. c. to CJ. c. to E. c. to Da. c. to BY. ORIGINAL HsS/L.09.11.22. MODIFIED FIXING FOR GOSHAWK STEERING. X4264 We have run the modified fixing for the steering 17 1/4 hours on the bump… | ||
| Scan70 | Comparison of desirable features of the P & R Type BD.11 battery versus the Exide battery. | ||
| View original record | To R.H.E. from EFC. c. CJ. & FR. c. Ry. & MP. c. RG. & DM. ORIGINAL EFC1/T14.11.22. X.5398 - P & R BATTERY TYPE BD.11 BATTERIES FOR 40/50. The above batteries as compared with the Exide incorporate so… | ||
| Scan71 | The specifications and testing of battery cell cases, comparing P & R patent material to standard Exide batteries. | ||
| View original record | Contd. -2- EFC/L/116.11.25. (7) For the cell cases the P & R patent material known as Dagenite is used, which we are satisfied cannot possibly crack or leak under any conditions of service. It is a… | ||
| Scan72 | Distributing electrical diagrams for external voltage and current regulators for chassis dynamos. | ||
| View original record | To R & E. from EFC. c. to CJ. & FN. c. to Ry. & EP. c. to Rz. & Ds. ORIGINAL EFC2/T14.11.22. X.1402 - EXTERNAL VOLTAGE AND CURRENT REGULATORS FOR CHASSIS DYNAMOS Further to our EFC1/T3.11.22, please… | ||
| Scan73 | Schematics and descriptions for two types of external chassis dynamo regulators. | ||
| View original record | EXTERNAL CHASSIS DYNAMO REGULATOR SCHEMES. 88w 141w LOAD (1) Aero type U.B. Dynamo & Regulator. Single pair of carbon contacts in series with dynamo field. Resistance according to varying pressure.… | ||
| Scan74 | Description of the operation of a Bijur Vibrator Regulator & Dynamo. | ||
| View original record | No. (3). Bijur Vibrator Regulator & Dynamo. Vibrating metallic contacts in series with field winding, and shunted by a resistance. Field winding also shunted by another resistance. Single operating… | ||
| Scan75 | Wiring diagram showing the connections for a Bijur Dynamo Regulator and Cutout. | ||
| View original record | [ "X. 3231. CONNECTIONS OF BIJUR DYNAMO REGULATOR AND CUTOUT.", "DYNAMO UNIT.", "REGULATOR UNIT.", "CUTOUT UNIT.", "LOAD", "+", "A", "F", "C", "Res 2", "Res1", "M", "VC", "B", "T", "Shunt", "Series"… | ||
| Scan76 | Circuit diagrams for a Liberty Dynamo & Regulator and a Westinghouse Dynamo & Regulator. | ||
| View original record | No. 5. LIBERTY DYNAMO & REGULATOR. 46w 118w 41w LOAD No. 6. WESTINGHOUSE DYNAMO & REGULATOR. LOAD | ||
| Scan77 | Description of Scott, Liberty Dynamo, and Westinghouse Dynamo & Vibrator regulators. | ||
| View original record | (4) Scott Regulator. Series of carbon plates with varying pressure, shunted by a non-inductive resistance, in series with the main field winding. Main operating coil either series or shunt or… | ||
| Scan78 | Bench tests and experimental modifications for Goshawk ignition coil cases. | ||
| View original record | To R & E. from EFC. c. CJ. & PH. c. Hy. c. EP. c. RG. & Ds. EFC4/T14.11.22. X.4078 - BENCH TESTS ON GOSHAWK IGNITION COIL CASES. Please find attached copy of my assistant's report on details of… | ||
| Scan79 | Tests on Goshawk ignition coil cases to determine their electrostatic and leakage effects under hot and cold conditions. | ||
| View original record | EFC. 58. 13th Nov. 1922. X.4079 - TESTS ON GOSHAWK IGNITION COIL CASES. X.3513. In connection with the recent troubles experienced on the Goshawk ignition, some tests were made on various coil cases… | ||
| Scan80 | Continuation of a report on electrical tests of components and materials like Elo, bakelite, and stabalite for leakage and spark performance. | ||
| View original record | -2- Contd. Weston milli-ammeter to a 200 volt d.c. supply. When cold, no leakage could be detected, but when hot, both cases showed a leakage resistance of about .5 A similar test was made on a… | ||
| Scan81 | The delivery and specifications of Peto & Radford batteries for the Goshawk engine. | ||
| View original record | TO R & E. from EPC. c. CJ & Ph. c. Ex. c. R. c. Rr. & Dn. ORIGINAL X.4414P - PETO & RADFORD BATTERIES FOR GOSHAWK We have now received at the Derby works, by request (although in accordance with… | ||
| Scan82 | Technical evaluation of battery components, capacity, and a comparison between different battery models. | ||
| View original record | Contd. -2- EFC/L/T15.11.22. (5) Both positive and negative grids are fitted with pairs of feet in such a manner that the positive and negative plate sections are independently supported by two pairs… | ||
| Scan83 | Quantity for an order of Goshawk batteries and the arrangement of samples from Peto & Radford. | ||
| View original record | Contd. -3- EFCL/11.--.-- At present only 25 of these batteries have been ordered and it is considered that the next order placed for further Goshawk batteries should comprise a further 50 of these.… | ||
| Scan84 | Description of external voltage and current regulators for chassis dynamos, comparing pre-war and post-war R. Bosch systems. | ||
| View original record | TO R & E.. from EFC. c. CJ. & PN. c. Ey. & EP. c. Eg. & Ds. X.1402 - EXTERNAL VOLTAGE AND CURRENT REGULATORS FOR CHASSIS DYNAMOS. We should have said that the R. Bosch dynamo and regulator… | ||
| Scan85 | Recommendations for an electrical system, suggesting the acquisition of a Bosch set for the Goshawk. | ||
| View original record | Contd. -2- EFCB/T16.11.22. (1) That the load current is made to circulate round the thick wire coil. (2) That the main operating coil does not now include as part of itself the few series turns. It… | ||
| Scan86 | Circuit diagram for a post-war R. Bosch dynamo and regulator unit. | ||
| View original record | + - Dynamo Field Resistance Se sh Load POST WAR R. BOSCH DYNAMO AND REGULATOR UNIT | ||
| Scan87 | The modification of a Bleriot phi cutout for 24-volt operation. | ||
| View original record | To R. from EFC. ORIGINAL EFC6/T16.11.22. X.4215 - BLERIOT PHI CUTOUT We have now completed for you the transformation of a Bleriot phi cutout to 24 volt working and are having this forwarded to you… | ||
| Scan88 | Proposed modifications to the Goshawk II front axle, specifically about pivot length and adjusting screw design. | ||
| View original record | TO BY. FROM DA. c. to CJ. c. to WGR. c. to HS.✓ ORIGINAL DA1/M16.11.22. 3/ GOSHAWK 11. FRONT AXLE. X4263 Thank you for your By2/P71122. We do not think we can be said to have misread your… | ||
| Scan89 | Total weight limits for the Goshawk car and the conditions for the guarantee. | ||
| View original record | TO ~~E.H.~~ FROM R. c. to ~~CJ.~~ WORT. ~~BY.~~ c. to DA. HS. ~~KH.~~ [STAMP: ORIGINAL] [STAMP: RECEIVED] RE. GOSHAWK WEIGHTS. X4538 I understood that this question was settled. The weight I gave was… | ||
| Scan90 | Packard 27.HP car, comparing its capacity and merits against the Goshawk and other American cars. | ||
| View original record | TO BJ. FROM R. C. to CJ. C. to JH. C. to HS. ORIGINAL. R NIPS BJ'S NOSE . R2/M17.11.22. RE. PACKARD. X435 / X4269 Regarding the 27.HP. Packard, it's capacity is 40% greater than Goshawk. Do you want… | ||
| Scan91 | Performance, testing, and potential improvements for the Mohawk battery ignition coil. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP180865 To R & E. from EFC. c. CJ. & FW. c. Ry. & RP. c. Eg. & De. EFC1/T18.11.22. ORIGINAL X.4079 - MOHAWK BATTERY IGNITION COIL. (1) The coil with rather longer core… | ||
| Scan92 | Methods for measuring the electrical properties and breakdown potential of insulating materials. | ||
| View original record | Contd. -2- EFC1/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 least twice as great as air. (8) In passing… | ||
| Scan93 | Experiments on coil construction, insulation, and performance to diagnose inefficiencies and ignition issues. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP180865 Contd. (3) EFC/1/T18.11.22. (14) Our experiments on the coils have indicated, e.g. by cutting out, or very nearly cutting out, the ballast resistance, that the… | ||
| Scan94 | Experiments on ignition coils, their insulation, and performance characteristics. | ||
| View original record | (4) 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 rubber compound before moulding has now been tried on an… | ||
| Scan95 | Report discussing electrical leakage, the Johnsen and Rahbek effect, inductivity, and hysteresis loss in circuits. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP180865 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… | ||
| Scan96 | Methods to reduce electrical loss in coils and transformers by impregnation and immersion. | ||
| View original record | Contd. -6- EFC./... 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 advantage… | ||
| Scan97 | Correcting previously stated Goshawk chassis weights and discussing guaranteed weight. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP180865 To R. from Hs. c. to C.J. c. to E. c. to Ds/Ev. c. to HY. c. to PN ORIGINAL. Hs4/LG20.11.22. GOSHAWK WEIGHTS. X4538 We regret that the Goshawk weights given in… | ||
| Scan98 | Performance comparison between the Goshawk and 40/50 models based on weight, engine displacement, and gear ratios. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP180865 contd:- -2- It will be seen that based on displacement per ton per mile the Goshawk is considerably more heavily loaded than the 40/50. It is only the… | ||
| Scan99 | Testing miniature Bosch sparking plugs on Goshawk and 40/50 engines, proposing dual ignition systems. | ||
| View original record | To R. from Hs. c. to E. ORIGINAL. Hs2/LG20.11.22. X4560 MINIATURE BOSCH SPARKING PLUGS. Our tests so far with these plugs have been most satisfactory. We have tried them on the 40/50 and the Goshawk… | ||
| Scan100 | Magneto arrangements with automatic advance and the possibilities of a new miniature plug. | ||
| View original record | contd:- -2- adjustment. The best arrangement would be to have a magneto which also had an automatic advance. This is desirable whether the magneto is used on its own or in conjunction with the… | ||
| Scan101 | Proposal to bring two cars, Hawk Northcliffe and 7-Goshawk-11, to a location for inspection and fitting of new parts. | ||
| View original record | To R. from Hs. ORIGINAL. HS6/LG21.11.22. X3408 X4219 We propose coming to W.W. next week. We shall bring the Hawk Northcliffe, which we will leave at W.W., and also 7-Goshawk-11 which will be fitted… | ||
| Scan102 | Technical memorandum detailing the specifications and testing of an experimental Goshuk battery ignition coil. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP180865 ORIGINAL. To R & S. from EPC. EPCL/T.21.11.22. c. GJ. & FH. c. Hy. & EP. c. Wg. & Ds. X.4079 - GOSHUK BATTERY IGNITION COIL. (1) We have in hand the making of… | ||
| Scan103 | Experiments on ignition coils, focusing on electrostatic effects, leakage, resistance, and road trial results. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP180865 -2- EFC1/T21.11.22. Contd. 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… | ||
| Scan104 | Observations on the insulation resistance of the high tension system under different conditions. | ||
| View original record | Contd. -3- EPCI/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 250 volts A.C. and in both cold… | ||
| Scan105 | Feasibility of having two independent ignition systems on the 20 HP car. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP180865 To BJ. from Hs. c. to BY. c. to Wor. c. to EF. ORIGINAL. Hs1/LG22.11.22. MAGNETO FOR 20 HP. CAR. Referring to your memo. BJ1/H21.11.22. We do not need any… | ||
| Scan106 | Developing a dual ignition system with magneto and battery for the Goshawk car. | ||
| View original record | contd:- -2- As soon as we can produce a Goshawk which we are prepared to send out to customers that has two independent ignitions which can be switched on at will, one might consider all the present… | ||
| Scan107 | Goshawk car's ignition system, arguing against two independent ignitions in favour of a magneto-only setup. | ||
| View original record | contd:- -3- In the meantime, there is no doubt that everybody has got to make the best of the present design of car as it stands. We suggest that the Sales Dept. are magnifying the troubles as regards… | ||
| Scan108 | Requesting a reply regarding the weight of tools and spares for the Goshawk chassis. | ||
| View original record | R.R. 235B (100 T) (S.H. 798. 10-12-20) G. 2948 TO HS. FROM DA/EV. ORIGINAL DA/EV2/M23.11.22. GOSHAWK WEIGHTS. X4538 [Handwritten, crossed out] X4083 [Handwritten] V4084 With reference to your… | ||
| Scan109 | Weight limit for the Goshawk model, proposing a target of 30 cwt for the car to allow for passengers and luggage. | ||
| View original record | TO BJ. FROM R. c. to HS. EP. ORIGINAL R4/M23.11.22. R GOSHAWK. X4538 HS. says my limit of 39 cwt. is really too heavy. I intend this to be quite as far as we must ever go. Can we not have other… | ||
| Scan110 | Urgent memo from R. to H.S. arranging a meeting with Mr. Rowledge, requesting they bring cars. | ||
| View original record | R.R. 235F (100 T) (S.H. 798. 10-12-20) G. 2948 URGENT. ORIGINAL. TO HS. FROM R. R6/M23.11.22. Referring to your memo. Hs6/LG211122., I am expecting Mr. Rowledge on Tuesday next, the 28th inst., and I… | ||
| Scan111 | Changing the coil on the No. 6 Goshawk car, which resolved mis-fire and power issues. | ||
| View original record | R.R. 235B (100 T) (S.H 798 10-12-20) G. 2948 TO EFC. (CJ. BJ. PN. HS. BY. EP.) FROM R. ORIGINAL R2/M23.11.22. NO. 6. GOSHAWK. X4273 We have changed the coil on this car to a stabalite cased one… | ||
| Scan112 | Mr. Royce's criticisms of the front seats in a Goshawk Maythorn Saloon and instructions for their replacement. | ||
| View original record | TO IHS. FROM DA/EV. c.c. to R.R. HS. ✓ ORIGINAL EV PINS LHS'S FARS BACK DA/EV1/M29.11.22. RE. 7.GOSHAWK - MAYTHORN SALOON. X3730 Mr. Royce saw this car again yesterday and commented on the very bad… | ||
| Scan113 | Design of seating and windscreens, complaining about current fittings. | ||
| View original record | (2) We understand that such fittings can be bought. The squab-bing of the driving seat should not be too luxurious, and both seats should have toe space underneath them for the rear passengers, as… | ||
| Scan114 | Particulars of a Johnson & Phillips rectifier and comparing it to a B.T.H. Tungar rectifier. | ||
| View original record | To R. from EFC. c. CJ. c. Da. ORIGINAL EFC1/T29.11.22. X.1599 - RE J. & P. RECTIFIER. Herewith please receive as requested full particulars of Johnson & Phillips rectifier for the purpose of charging… | ||
| Scan115 | Calculations and design considerations for the 'Seagull Dynamo', comparing it to the 'Goshawk' machine. | ||
| View original record | ORIGINAL. To R. from EFC. c.c. CJ. c. E. c. Py. X.4010 - SEAGULL DYNAMO. Herewith please receive calculations in connection with the above dynamo to suit the dimensions given on Lec.1644. The… | ||
| Scan116 | Comparison of dynamo machines, specifically the Bosch, Seagull, Goshawk, and Rotax models. | ||
| View original record | Contd. -2- EFC4/T29.11.22. The R. Bosch machine works with an air gap no greater than .010" and the carcase is very massive, but the performance even for its weight is superior to all other machines.… | ||
| Scan117 | Performance of production Goshawk dynamos, comparing them to U.S.A. Bosch machines. | ||
| View original record | Contd. -3- EFC4/T20.11.22. moment some of the production Goshawk dynamos do not seem to be coming out quite as well. Both these other machines are of course single field winding third brush… | ||
| Scan118 | Design calculations and specifications for the Seagull Dynamo. | ||
| View original record | -1- X.4010 - SEAGULL DYNAMO. Dynamo must, in hot condition, put up 13.6 volts on open circuit at a speed of 480 R.P.M. As a shunt machine it should do it at 440 R.P.M. (say). Hot armature resistance =… | ||
| Scan119 | Calculations for armature and field coil specifications including resistance, turns, and wire gauge. | ||
| View original record | -2- Contd. Total number of armature turns = 232 Armature resistance is that of 58 turns in series. Length of mean armature turn (approx) = 13.5" Total length for armature resistance = 58 x 13.5 = 65… | ||
| Scan120 | Calculation table for the magnetic circuit of an electrical component. | ||
| View original record | -3- | Part. | Material. | Length (.) | Virtual section sq.ins. | Total flux. | Flux density inch units. | Flux density CM units. B. | H. | A.T. per inch. | A.T. |… | ||
| Scan121 | Calculations for wire and coil specifications, including resistance, turns, and current for a shunt machine. | ||
| View original record | -4- Contd. Square C.S. area of this wire covered (D.C.C.) = (.056)² = .00313 inch² Available C.S. area of winding space estimated to be .875 x .475 = .415 inch². Hence number of turns = .415 / .00313… | ||
| Scan122 | List of principal quantities and calculations for an electrical machine's armature and field. | ||
| View original record | Contd. Principal Quantities. No. of armature conductors = 464 Armature resis. at 100°C = .384 ohm. Field resistance at 80°C = 3.04 ohms. Cutting in point = 13.6 volts Field turns = 133 Field amperes =… | ||
| Scan123 | Comparison of dimensions and weights for the U.S.A. Bosch Dynamo, Rotax AT.4, and R.R. Goshawk. | ||
| View original record | 28.11.32. COMPARISON OF DIMENSIONS AND WEIGHTS OF U.S.A. BOSCH DYNAMO ROTAX AT.4 R.R. GOSHAWK U.S.A. Bosch. Rotax AT.4. Goshawk. CARCASE. Dia. 4.975 5.00 5.00 Length. 4.70 5.00 5.00 Thickness. .325… | ||
| Scan124 | Request for the reduction ratio and piston displacement to calculate the starting torque for the 'Seagull' starter motor. | ||
| View original record | ORIGINAL. To E. from EFC. EFC5/T30.11.22. X.4001 - "SEAGULL" STARTER MOTOR To enable us to get out the calculations in connection with the Seagull starter motor, we should be glad if you could give us… | ||