Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Reference note regarding earlier correspondence on customers' complaints. | ||
| View original record | X.5783. For earlier correspondence re Customers' Complaints see X.4118. (Gos.2) EFC. | ||
| Scan002 | Technical response concerning the electrical dynamo output and current load for a 20 HP car, specifically for Lord Dawson of Penn. | ||
| View original record | W/S. To HO. from EFC. X5783 EFC3/T28.6.27. 20 HP. CAR GLK-46 (LORD DAWSON OF PENN) Y3199 X5780 Your HO6/EBN27.6.27 has been handed to the undersigned. Answering your query in regard to the amount of… | ||
| Scan003 | The investigation of a customer complaint regarding a frayed dynamo cable causing an intermittent fault. | ||
| View original record | X5783 FILES. 17.8.31. CUSTOMER'S COMPLAINT, GXO.46. As the result of enquiries on our part, in connection with the above complaint, we have received a report from Cricklewood. They have succeeded in… | ||
| Scan004 | Responding to quarterly complaints about various electrical components and instruments. | ||
| View original record | To R. from Hs/Wst. c. Sg. c. Sor. E. c. Da. Ev. c. Hd. EP. X5783 Hs/Wst.1/ADMO.11.31. QUARTERLY COMPLAINTS RE ELECTRIC COMPONENTS AND INSTRUMENTS. With reference to the quarterly complaints issued… | ||
| Scan005 | Notice regarding a defective 20HP Exide Battery with a faulty cell for chassis No.GYK-40. | ||
| View original record | fm/King EFC. X5783B Hm/FHA4/EW29.12.26. Chassis No.GYK-40. Allington. o/85966. We send you herewith one 20HP. Exide Battery, which, as far as we can trace, has only seen about 3 months' service. Our… | ||
| Scan006 | Battery discharge test chart for an Exide battery from chassis GYK-40. | ||
| View original record | XJ5789 Exide battery from chassis GYK-40 (20HP) REGD TRADE MARK "MEGGER" Average amperes = 4.82 Hours = 9.7 Ampere hours = 46.7 | ||
| Scan007 | The condition and testing of an Exide battery from a 20 HP car, chassis GYK.40. | ||
| View original record | EFC. 6.1.27. RE 20 HP. EXIDE BATTERY EX CHASSIS GYK.40. Battery when received was discharged, No.1 cell being lowest and shewing positive weakness on the cadmium. The acid density was also lower. The… | ||
| Scan008 | Faulty Exide battery from a 20 HP vehicle, chassis GYK.40. | ||
| View original record | X57836 To Hm/FHA* from EFC. EFC2/T8.1.27. G 20 HP. EXIDE BATTERY EX CHASSIS GYK.40- ALLINGTON. We have duly examined and tested this battery and are in agreement with your electrician's report that… | ||
| Scan009 | Quoting a report from the Chloride Electrical Storage Co. Ltd. on a battery test for chassis GYK-40. | ||
| View original record | Hm/PHA from Wd. c.to EFC. [STAMP: RECEIVED] X/7D86 Wd4/NJ21.2.27. Chassis GYK-40. Allington. O/85965. I confirm mine Wd/JT20/HP3.2.27. We are now in receipt of a full report from the Chloride… | ||
| Scan010 | Status of a 20-HP Exide Battery from chassis GYK-40, which is undergoing testing by Chloride Electrical Storage Co. Ltd. | ||
| View original record | X57836 Hm/FHA. c. to EFC. Wd/JT20/HP3.2.27. Hs RECEIVED FEB 3 1927 In reply to Hm/FHA5/EW10.1.27 and EFC2/T8.1.27 concerning the 20-HP Exide Battery, removed from chassis GYK-40; and returned to… | ||
| Scan011 | Investigation and resolution of a faulty battery cell for chassis GYK.40. | ||
| View original record | To Wd. from EFC. c. Hm/FHA. X5786 EFC4/T23.2.27. 20 HP. CHASSIS GYK.40. ALLINGTON. O/859651 We have your Wd4/NJ21.2.27, the explanation that seems most probable is that the charging and discharging to… | ||
| Scan012 | Correspondence quoting the battery supplier 'Chloride' regarding the satisfactory condition of a returned battery from chassis GYK-40. | ||
| View original record | .EFC.from Wd. c.to Hm. V57836 Wd4/NJ1.3.27. WAR Hs RECEIVED 14 FEB 1977 20 HP.Chassis GYK-40. Allington. O/85965 Referring to EFC4/T23.2.27 and Hm/FHA2/EW24.3.27, we are in receipt of a letter from… | ||
| Scan013 | Follow-up letter regarding a maker's report on a faulty 12-volt battery for Chassis No. GRK-26. | ||
| View original record | X57836. Hm/FHA. c. to EFC. ROY/JT10/HP28.10.27. Chassis No.GRK-26. Rowley. o/86336. Further to yours Hm/FHA2/EW28.9.27, we are now in a position to submit makers report on the 12-volt battery which we… | ||
| Scan014 | Letter from Peto and Radford discussing a battery fault diagnosis and its history across multiple chassis. | ||
| View original record | COPY. PETO AND RADFORD 107A PIMLICO ROAD LONDON. S.W.1. Your Ref.- ROY/JTS/HP29927. 27th October 1927. PHP/LP/R.6295. Messrs. Rolls-Royce Ltd., Nightingale Road, DERBY. Dear Sirs, Reverting to your… | ||
| Scan015 | Letter from Peto and Radford discussing battery failures and inadequate dynamo outputs on chassis GAK-54, GNK-30, and GRK-26. | ||
| View original record | (2) For the time being, we can disregard the use on Chassis GAK-54, as the failure of the battery was then traced to a leaky cell and was rectified for the owner Mr.F.E. Brooke. On both occasions… | ||
| Scan016 | Letter to a customer regarding ignition trouble and the supply of a new coil and ballast resistance for a 20 HP car. | ||
| View original record | X.5783el EFC2/T. 15th May, 1929. Mr. C.R. N. Minchin, 50 Grosvenor Gardens, LONDON, S.W.1. Dear Mr. Minchin, We have received your letter M/5 of yesterday's date regarding the ignition trouble on your… | ||
| Scan017 | Letter discussing the result of changing a coil and requesting the old one be returned for examination. | ||
| View original record | -2- Contd. to your changing the coil as well, as I know you will be good enough to tell us the result. Then if there is still a fault, it will be advantageous to us to examine the old coil when you… | ||
| Scan018 | Letter responding to a query about 'Delco' ignition systems, detailing the development of coils and contact points. | ||
| View original record | X5783 cl EFC/T. 17th May, 1929. Mr. G.R.N.Minchin, 50 Grosvenor Gardens. London, S.W.1. X8780 X4284 X5783cl Dear Mr. Minchin, I have received yours of the 16th inst. I think the answer to your query… | ||
| Scan019 | Page two of a letter discussing the longevity and performance of ignition coils, focusing on insulation and ballast resistance. | ||
| View original record | -2- contd. lately we have not been absolutely clear in the coils themselves of the effect of the current heating over long periods. It has to be remembered that the primary winding of the coil has to… | ||
| Scan020 | The return of specific parts for chassis GYL-61 for severe testing and reporting. | ||
| View original record | X5783 HM .N/W. EFC. A/R/P5/P.21.5.30. Re. Chassis GYL-61. Jn.43729. We are returning to you, under our N/W 8183, a Coil, Ballast Resistance, Condensor, Tungsten Rocker Arm and Tungsten Screw. We shall… | ||
| Scan021 | Returned parts for chassis GYL-61 and clarifying a previous communication. | ||
| View original record | X5783cl N/W. EFC. A/R/G16/G29.5.30. X2894 X3485 RE - 20 HP. CHASSIS NO+ GYL-61. Thank you for your memo EFC3/AD28.5.30. The coil, ballast resistance, condenser, rocker arm and screw ex the above have… | ||
| Scan022 | Faulty battery ignition parts from a 20 HP Chassis, GYL-61. | ||
| View original record | X5783 el COPY. WE.26. 30.5.30. X.3485. FAULTY BATTERY IGNITION PARTS X.5783. X.2894. OFF 20 HP. CHASSIS GYL-61. Re C8/Cl9.5.30. We have examined the coil, condenser, ballast, resistance and contact… | ||
| Scan023 | Analysis of faulty battery ignition parts from a 20 HP chassis, identifying bad contact points as the likely cause of failure. | ||
| View original record | X5783.cl. To C. from EFC/HEW. C. EF. C. Wor. EFC absent EFC/HAW/AD2.6.30. X.3485. FAULTY BATTERY IGNITION PARTS X.5783. X.2894. 20 HP. CHASSIS GXL-61. REP. C8/cl9.5.30. There parts have been duly… | ||
| Scan024 | Persistent ignition issues on chassis GYL-61, suggesting a deeper problem than the contact points. | ||
| View original record | S/W...EFC/HEW. c. to EP. c. to WOP. X5783. C12/C3.6.30. Faulty Battery Ignition Parts...GYL-61 EFC/HEW1/AD2.6.30. -------------------- I am very interested to note your report upon the coil in… | ||
| Scan025 | Responding to a request for a report on faulty battery ignition parts for chassis GYL-61. | ||
| View original record | X5783. A/R. from EFC/HEW. EFC absent EFC/HEW3/AD5.6.30. RE - CHASSIS GYL-61. We only received your A/R/P5/P21.5.30 today and we note that you require a copy of our report on the faulty battery… | ||
| Scan026 | Diagnostic memo on faulty battery ignition parts and potential causes for failure on a 20 HP chassis. | ||
| View original record | X5783 To C. from EFC/IBW. C. EP. C. WOR. C. N. EFC absent EFC/IBW4/AD5.6.30. X.3485. FAULTY BATTERY IGNITION PARTS X.5783. 20 HP. CHASSIS GYL-61. X2894. Thank you for your C12/C3.6.30. Our experience… | ||
| Scan027 | Misfire issue due to contact gap closure, proposing a distributor modification on chassis GYL-61. | ||
| View original record | -2- EFC/HEW4/AD5.6.30 contd. having closed up to .005". Upon opening out the gap the misfire disappeared. This rather rapid closing up of the contact gap may have been due to excessive wear of the… | ||
| Scan028 | Investigation report into engine misfiring on a 20/25 HP chassis, caused by temperature-related variations in the contact breaker gap. | ||
| View original record | X.5783. WE.27. 6.6.30. X.5680. X.5783. INVESTIGATION OF MISFIRING ON BATTERY IGNITION ON 20/25 HP. CUSTOMERS' CHASSIS A case of misfiring on the "pick up" on a customer's chassis in the Repair Dept.… | ||
| Scan029 | Short typed memo regarding faulty battery ignition parts for a vehicle. | ||
| View original record | Y578B S/W C12/C12.6.30. Re Faulty Battery Ignition Parts -------- Thanks for your EFC/HEW4/AD5.6.30, and I will have the various parts you mention looked to on GYL-61. C. | ||
| Scan030 | Return of faulty battery ignition parts for chassis GYL-61. | ||
| View original record | X5783. W/N. To A/R. from EFC. EFC7/ADL.6.6.30. X.5783. CHASSIS GYL-61. Further to our EFC/HEW3/AD5.6.30 we are now arranging to return to you the faulty battery ignition parts comprising, coil,… | ||
| Scan031 | Arranging the return of faulty battery ignition parts taken from chassis GYL-61. | ||
| View original record | X5783. D/BP. from EFC. c. Despatch Stores. EFC8/ADL6.6.30. Will you please arrange for the following to be returned to A/R. at Cricklewood quoting our EFC7/ADL6.6.30 :- Coil, condenser and ballast… | ||
| Scan032 | Returned parts for chassis GYL-61 and who to debit for repairs. | ||
| View original record | X5783. EFC. D/BP/LT3/GB.14. 7. 30. Re: Chassis Number GYL-61. We have received notification from the Repair Department that the Coil, Ballast Resistance, T.T. Rocker Arm and Screw, returned by… | ||
| Scan033 | Internal memorandum regarding the allocation of repair costs for chassis GYL-61. | ||
| View original record | Y5783. D/BP. from EFC. EFC2/ADL8.7.30. Re : CHASSIS NO. GYL-61. Answering your D/BP/LT3/GBL4.7.30, it would appear that the ballast resistance, T.T. rocker arm and screw should be debited to ourselves… | ||
| Scan034 | Examination report on ignition units (GLN-15), identifying faulty operation due to impurities in the coil's paraffin wax insulation. | ||
| View original record | X5783 By. from EFC. c. Sft/Mr Brock. EFCl/AD30.12.30. X.5680. IGNITION UNITS EX GLN-15. X.5783. We have duly examined and tested these units. With the ballast resistance and condenser nothing was… | ||
| Scan035 | The investigation of an ignition coil failure on chassis GLN-15, which occurs only when hot. | ||
| View original record | X5783 EFC. Sft/Mr.Brock. RE :- IGNITION COILS. We have read your report on the Ignition Coil from Chassis No.GLN-15, and note that in the cold condition the Coil operates satisfactorily and that it… | ||
| Scan036 | Letter from a repair department regarding a persistent engine misfire issue on a customer's car. | ||
| View original record | X5783 COPY. MANN EGERTON & Co. LTD. REPAIR DEPT. 5, PRINCE OF WALES RD. NORWICH. THC/OF/4. February 19th, 1931. X.5783 X.6117. Messrs. Rolls-Royce Ltd. Derby. Dear Sirs, Re - 1929 20 HP. Rolls-Royce… | ||
| Scan037 | Complaint about a defective coil from chassis GLN.60, sent for examination and repair. | ||
| View original record | X5783 Dy. Sft. Hs. Sft/Mr.Brock. Hd/AVS.9/WH.31.12.31. RE: CHASSIS NO. GLN.60 - 'N' DEPARTMENT We have received from the above Department 1.D.72503 Coil No.L.I.12 L.P.S. with a complaint that same is… | ||
| Scan038 | The dismantling and fault analysis of a non-standard experimental coil from chassis GLN.60. | ||
| View original record | SFT. HD. C.Hs/HEW. X5783 SFT/EJB1/EG.4.1.32. RE: COIL OFF CHASSIS GLN.60. "N" DEPT. This coil was supplied by the Experimental Dept. and is not standard production, the windings not having been dipped… | ||
| Scan039 | Letter detailing an intermittent misfiring and ignition trouble with a 20 HP model car. | ||
| View original record | X5783 CL Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 5 LINES PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P & R Accumulators Established 1889 PETO &… | ||
| Scan040 | Letter from Peto & Radford discussing ignition trouble and the reliability of 'Delco' coils. | ||
| View original record | X578 cl. Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 5 LINES PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P & R Accumulators Established 1889 PETO &… | ||
| Scan041 | The examination of a faulty dynamo and cutout, identifying a bent contact spring as the cause of over-voltage. | ||
| View original record | To BY. from EFC. c. SFT/Mr.Brock. X5783ch EFC2/T25.6.27. 20 HP. DYNAMO 1739 AND CUTOUT 1462 EX CHASSIS GSK.38. We have now examined this dynamo and distribution box. From our inspection we judge that… | ||
| Scan042 | Burnt platinum-tipped rocker arm on Chassis No.95-MC, attributing the fault to oil vapour. | ||
| View original record | W/A C. to EP. C. to EY. C. to EFC. X5763 Hm/NRC10/B30.10.25. Re Chassis No.95-MC. - Topham. In reply to your A/M3/S.27.10.25., with regard to the platinum tipped rocker arm of which the platinum has… | ||
| Scan043 | Issues with the platinum points on chassis GCK-70, suggesting the replacement of the ignition coil and distributor for investigation. | ||
| View original record | X5783 or ? Hm. [struck through] c. to EFC. c. to HS. c. to D/EP. 4-0 6-9-26 BY/Cgh2/G.6.9.26. CHASSIS NO. GCK-70. H.N. ASHTON, ESQ. --------------------------------------- With reference to… | ||
| Scan044 | Customer complaint about the short life of platinum points on chassis GCK-70. | ||
| View original record | X5783 is. C. to EFC. Hm/NRC10/EW5.11.26. [STAMP: RECEIVED NOV 5 1926 Hs] Re 20HP. Chassis No. GCK-70. H.N. Ashton Esq. The following is an extract from customer's letter of the 4th. instant:- "Your… | ||
| Scan045 | Failure of bakelite battery ignition H.T. rotors due to tracking. | ||
| View original record | X5783dr To Hm/NRC. from EFC. EFC8/T6.7.27. BATTERY IGNITION H.T. ROTOSS. X8783dr You have to-day handed to us a case of failure of the bakelite body of a battery ignition H.T. rotor by tracking. You… | ||
| Scan046 | Failure of the 20 HP distributor rotor and proposed solutions. | ||
| View original record | EP. from EFC. X5783dv EFC2/T11.4.29. 20 H.P. DISTRIBUTOR ROTOR FAILURE. EP3/H1O.4.29. We have previously had one or two similar cases. These must be due to a slight flaw in the moulding. It was… | ||
| Scan047 | Requesting particulars about a dynamo failure on a 20 HP India chassis. | ||
| View original record | X5783 do To Mr. Ward (Repair Dept) from EFC. EFC2/T27.10.26. 20 HP. COMPLAINTS. With reference to electrical failurws on 20 HP. chassis, of which we have been enquiring, the record shows one dynamo… | ||
| Scan048 | 20-HP vehicle complaint regarding a defective dynamo and the compilation of a complaint list. | ||
| View original record | X5783 do EFC. Hm/HAW6/D28.10.26. 20-HP. Complaints. Ref. EFC2/T27.10.26. The case referred to was Chassis No.GCK-70. The chassis was sent in with complaints of platinum points constantly and… | ||
| Scan049 | 20 HP dynamo with solder thrown out of the commutator, sent for inspection. | ||
| View original record | EFC. X5783do 24.11.26. SALES 89K6. Herewith 20 HP. dynamo received from repair Dept. with solder thrown out of comm. In accordance with a general instruction from HY. I am sending this to you for… | ||
| Scan050 | Letter regarding the examination of a 20 HP Dynamo with a faulty negative brush causing solder to run. | ||
| View original record | XS78360 EFC3/T26.11.26. To Mr. Brock for Mr. Watson. 20 HP. DYNAMO. Your ref. Sales 89.K6. of the 24th. We are returning this machine to you after examining same. It is true there is a slight… | ||
| Scan051 | Note regarding a 20 HP dynamo from chassis 54S9 returned to the Works for repair. | ||
| View original record | EFC. X5783do 28.11.26. CLYDE AUTO CO. XX CHASSIS 54S9. Herewith 20 HP. dynamo No.132 from Repair Dept. with solder run. This is the first time this machine has been back in Works. Date of manufacture.… | ||
| Scan052 | Instruction sheet requesting the inspection of two dynamos from Cricklewood. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 X 5783do ROLLS-ROYCE LTD. INSTRUCTIONS. To E.F.C. 6-12-1926 Order No. Customer's No. Please receive the following for inspection 20 TP Dynamo No 580 GA54… | ||
| Scan053 | Instruction note regarding a dynamo from a customer's car, requesting a report on its failure. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To E.F.C. Order No. Customer's No. Herewith GII Dynamo 171 off Chassis G.M.K. 40. This is off a customer's car in our R.D.… | ||
| Scan054 | Report outlining the reasons for failure of a 20 HP Dynamo, number 132. | ||
| View original record | X 578320 To SFT/Mr. Brock. EFC3/T6.12.26. re 20 HP. DYNAMO NO.132. This is a 29 commutator segment machine. The failure of this dynamo has been brought about by the following :- (1) Control brush… | ||
| Scan055 | Request to the Test Department to quieten a dynamo that moans at low and medium speeds. | ||
| View original record | X5783do Mr. Clark. 13.12.26. 20 HP. 57.J. TEST DEPT. Herewith dynamo No.S.5.H. Moans very badly at low and medium speeds. This is the one we demonstrated to your Mr. Allen on Saturday last. Will you… | ||
| Scan056 | Faults found in a 20 HP Dynamo No. 896 from chassis GMK.25. | ||
| View original record | To BY. from EFC. c. SFI/Mr. Brock. X5783do EFC9/T15.12.26. 20 HP. DYNAMO No.896. EX CHASSIS GMK.25. Ref. Mr. Brock's note 6.12.26. This is a 29 commutator segment machine. There are one or two minor… | ||
| Scan057 | Noisy 20 HP dynamos after repair. | ||
| View original record | EFC. X5783do 15.12.26. 20 HP. DYNAMOS. Herewith dynamos Nos. 702, 1143, 47, 665, 1025. These machines have been taken off customers chassis by our Repair Dept. We have repaired them and now R.D.… | ||
| Scan058 | The failure of a 20 HP dynamo from chassis GA.54, detailing issues with the control brush setting and commutator micas. | ||
| View original record | X5763 do To EY. from EFC. c. SFT/Mr. Brock. EFC8/T15.12.26. 20 HP. DYNAMO No.580. EX CHASSIS GA.54. REF. Mr. Brock's note of 6.12.26. This is a 29 commutator segment machine. We consider that the… | ||
| Scan059 | Noise issue of a Dynamo S.5.H. and proposed solutions for modification and testing. | ||
| View original record | X5983ds To Mx. from EFC. c. BY. Mx/Mr.Daykin. c. SFT/Mr. Brock. EFC3/T16.12.26. RE DYNAMO S.5.H. EX TEST DEPT. The noise of this machine was demonstrated to us on a chassis on the road and it did not… | ||
| Scan060 | The dispatch of two machines used on an experimental car. | ||
| View original record | Contd. -2- EFC3/T16.12.26. been on one of our experimental cars. The two machines are being sent to you. (Mx) EFC. | ||
| Scan061 | Fault report on Dynamo No.171 from chassis CMK.40, detailing issues with brush fitting and commutator sparking. | ||
| View original record | To BY. from EFC. c. SFT/Mr. Brock. X5780do EFC3/T16.12.26. 20 HP. DYNAMO NO.171 EX CHASSIS CMK.40. This is a 29 commutator segment machine. As in the previous case, there are one or two minor faults… | ||
| Scan062 | Faults and investigations on several 20 HP dynamos. | ||
| View original record | To EY. from EFC. c. Mr. Brock. X5783do EFC3/T22.12.26. X.5783do. 20 HP. DYNAMOS:- No.191 Ex chassis 72A5 - C'wood. No.1123. " GLK7 - ? No.1676. " GSK.61 - C'wood. No.1214. " GNK.55. - " No.191. This… | ||
| Scan063 | Continued memorandum regarding the conditions for inspecting returned dynamos. | ||
| View original record | Contd. -2- EFC3/T22.12.26. We return the machines herewith to BY. We appreciate the opportunity of ourselves being able to inspect a moderate number of cases of dynamo failure in customers' hands, but… | ||
| Scan064 | The faults found in two 20 HP dynamos, No. 94 and No. 340. | ||
| View original record | To EY. from EFC. c. Mr. Brock. X598 do EFC4/T22.12.26. RE 20 HP. DYNAMOS No.94 - Ex chassis 56S2. C'wood. AND No.340 Ex chassis 71A2.- Grimshaw Leather. No.94. This is a 29 commutator segment machine.… | ||
| Scan065 | Return and examination of five dynamos. | ||
| View original record | X5783 do EFC. 14.12.26. Herewith 5 dynamos that have been returned . EAC.AR.85. 20 HC. C'wood. (solder) 20 HP. 191. 72A5 " " 20 HP. 1123. GEK7. Deaconson (?) " 20 HP. 1676. GSK.61 C'wood 20 HP. 1214… | ||
| Scan066 | 20 HP dynamo, number 330, removed from chassis 71A4 for examination. | ||
| View original record | EFC. X5783do 30.12.26. Herewith 20 HP. dynamo No.330 off chassis 71A4 (Cricklewood) Will you kindly examine this and forward with your report to EY. E.J.Brock. | ||
| Scan067 | Possible cause for a dynamo failure on a 20 HP car, attributing it to a weak brush spring or an external circuit fault. | ||
| View original record | X5783do EFC7/T6.1.27. To BY. from EFC. c. SFT/Mr. Brock. 20 HP. DYNAMO NO. 330 EX CHASSIS 71A4 - C'WOOD. The only possible reason we can see which should have caused the commutator solder to run is… | ||
| Scan068 | The failure analysis of a 20 HP Dynamo No. 155 from chassis 52-S-7. | ||
| View original record | To BY. from EFC. c. SFT/Mr. Brock. X5763do EFCl/T13.1.27. 20 HP. DYNAMO No.155 EX CHASSIS 52-S-7 This machine has failed and the solder run due to (1) A good deal too much retard of the control brush… | ||
| Scan069 | To Mr. Clark regarding an adjustment made to a 20 HP dynamo control. | ||
| View original record | Remarks on the running generally Driver: X5783 do Mr. Clark. 4.2.27. Herewith 20 HP. dynamo No.P.2.KM We have advanced the control 2º as requested. i.e. 1/3 segment clockwise. See your EFC7/T2.2.27.… | ||
| Scan070 | Returned Dynamo from Chassis GSK-76 due to a complaint of low output. | ||
| View original record | By C. to EFC. C. to FBP. [Struck through] X5783do Hm/CI3/EW28.2.27. Yellow Sheet Y.24764. R.R. Cricklewood Lane. Chassis GSK-76. - One Dynamo No.1462. We have received the above Dynamo back in Works… | ||
| Scan071 | Instructions regarding a noisy Dynamo (20HP) returned from the Test Department. | ||
| View original record | ROLLS-ROYCE LTD. INSTRUCTIONS. X5783do. To EFC. Customer's No. Dynamo (20-HP) L-7-0. This machine has been returned from Test Dept. as noisy. Will you kindly let me know what we can do to quieten it.… | ||
| Scan072 | Repair history of dynamo No.94. | ||
| View original record | X578320. EFC. 25.3.27. Please note dynamo No.94 was repaired by us as late as 16.12.26 on which date it came in in a similar condition to which you now find it. This machine is the one I sent you this… | ||
| Scan073 | Faulty dynamo returned from chassis 63-H6 for examination. | ||
| View original record | X5783do EFC. 25.3.27. Herewith dynamo (20 HP) No.94 returned from Cricklewood off chassis 63-H6. Solder has run. Will you kindly examine this and forward it together with your report to EY. E.J.Brock. | ||
| Scan074 | Recurring fault with a 20 HP Dynamo, No.94, where solder repeatedly runs from the commutator. | ||
| View original record | X5783 do EFC. BY12/H. 28.3.27. 20 HP. DYNAMO. One of the above dynamos, No.94, was returned to us 16.12.26. because the solder had run from the commutator. We made it O.K. and gave it a production… | ||
| Scan075 | Persistent faults found in a 20 HP Dynamo No.94, ex chassis 63-H6, with recommended corrections. | ||
| View original record | To BY. from EFC. c. Mr. Brock. X57820 EFC1/T28.3.27. 20 HP. DYNAMO No.94. EX CHASSIS 63-H6. This is a 29 commutator segment machine and has been to us previously and reported upon in our… | ||
| Scan076 | Complaints and repairs for 20 HP and 40/50 HP dynamos returned between January and March 1927. | ||
| View original record | Hs EFC. X5/782/do HY/Mtn19/G.30.3.27. [STAMP: RECEIVED MAR 31 1927] 20 HP. & 40/50 HP. DYNAMOS. Kindly note the following dynamos have been returned to Mr. Brock during the period, January 1st. to… | ||
| Scan077 | Instruction sheet regarding the examination of a returned Dynamo NU132 from chassis 72A-O. | ||
| View original record | RR 238 (150 BKS.) (OB 461-B 12-24) MP 306975 X 5783 do ROLLS-ROYCE LTD. INSTRUCTIONS. To E.7.C. 25-4-1927 Order No. Customer's No. Herewith Dynamo NU132 which has been returned from R.R. Cricklewood… | ||
| Scan078 | Inspection report on a 20 HP Dynamo No. 132 from chassis 72-AO, detailing issues with the control brush setting and commutator micas. | ||
| View original record | VS783do To BY. from EFC. c. SFI/Mr. Brock. EFC2/T27.4.27. 20 HP. DYNAMO No.132 EX CHASSIS 72-AO. As stated in Mr. Brock's note of 25.4.27, we had this machine in for inspection for a similar reason… | ||
| Scan079 | Instruction to examine dynamo No 1749 from chassis C.U.R. 30 and forward a report. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8 12.24) MP 306975 X5783 do ROLLS-ROYCE LTD. INSTRUCTIONS. To E J C. 27-4-1927 Order No. Customer's No. Herewith re dynamo No 1749 This machine has been sent to us from… | ||
| Scan080 | Examination of Dynamo No.1749 from chassis GUK.30, concluding an external fault caused over-voltage running. | ||
| View original record | To BY. from EFC. c.c. SFT/Mr. Brock. X5783do EFC2/T30.4.27. 20 HP. DYNAMO NO.1749- EX CHASSIS GUK.30. (57 segs) We have duly examined this machine and from inspection we find no reason why it should… | ||
| Scan081 | Instructions regarding the examination and reporting on a returned 20 HP Dynamo No 1307. | ||
| View original record | RR 238 (150 BKS.) (OB 461-8-12-24) MP 306975 X578320 ROLLS-ROYCE LTD. INSTRUCTIONS. To E.T.C 11- 5- 1927 Order No. Customer's No. Herewith 20. H.P. Dynamo No 1307 Returned from Cricklewood You will… | ||
| Scan082 | Examination report on a 20 HP Dynamo, No.1307, detailing issues with stiff brushes, overheating, and excessive lubrication. | ||
| View original record | To EY. from EFC. c. SFT/Mr. Bröck. X578sdo EFC6/T16.5.27. 20 HP. DYNAMO NO.1307 - EX CRICKLEWOOD. (57 segs) We have duly examined this machine handed to us by Mr. Bröck's Dept. It is noted that the… | ||
| Scan083 | The condition of three 20 HP dynamos received from Cricklewood. | ||
| View original record | EFC. X.5783do. 21.5.27. 20 HP. DYNAMOS. Herewith dynamos from Cricklewood:- No. 61 of GRK.77. Has been resoldered by somebody. previously. No. 279 off 65-H8 Solder run - brushes worn. No. 1109 GAK.14.… | ||
| Scan084 | Faults found in three 20 HP dynamos from various chassis. | ||
| View original record | TO HY. from EFC. c.c. SFI/Mr.Brock. X5783ko EFC2/T30.5.27. 20 HP. DYNAMOS. Dynamo No.61.EX Chassis GNK.77. This is a 29 segment machine. The solder had not run. Condition of brush and commutator… | ||
| Scan085 | Modification and production of a 20 HP Dynamo L.70. | ||
| View original record | x5783do To SFT/Mr. Brock. EFC4/T30.5.27. 20 HP. Dynamo. Herewith we return to you 20 HP. dynamo L.70 (See your note of 22.3.27). We have carefully considered the whole matter as to whether there is… | ||
| Scan086 | Instruction to examine Dynamo No. 371 from Chassis GRK78, noting its previous history with Chassis 69 H. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 X578320 ROLLS-ROYCE LTD. INSTRUCTIONS. To E.F.C. Order No. Customer's No. Herewith GII Dynamo No 371 This has been sent in from Cricklewood off Chassis.… | ||
| Scan087 | Instruction sheet detailing issues with a dynamo and cutout from chassis G.S.K. 38, requesting an examination and report. | ||
| View original record | RR 238 (150 BKS.) (OB 461-8-12-24) MP 306975 X5783do ROLLS-ROYCE LTD. INSTRUCTIONS. To E.F.C 23-6-1927 Order No. Customer's No. I have sent you dynamo (20H.P) No 1739 also Cut Out No 1462 off chassis.… | ||
| Scan088 | Examination and test report for Dynamo No. 371 from Chassis GRK. 78, detailing faults found and its return. | ||
| View original record | Y5283do To EY. from EFC/RJA. c. Mr. Brock. EFC2/T14.6.27. (EFC. absent) DYNAMO NO. 371 EX CHASSIS GRK. 78. We have duly examined and tested this dynamo. It is a 29 commutator segment machine. We find… | ||
| Scan089 | Examination report on a faulty dynamo and cutout from a 20 HP chassis GSK.38. | ||
| View original record | To BY. from EFC . c. SFI/Mr.Brock. X5788 do EFC2/T25.6.27. 20 HP. DYNAMO 1739 AND CUTOUT 1462 EX CHASSIS GSK.38. We have now examined this dynamo and distribution box. From our inspection we judge… | ||
| Scan090 | Instruction memo to Mr Clarke regarding a faulty dynamo on chassis C.A.K.5. | ||
| View original record | RR 238 (150 BKS.) (OB 451-8-12-24) MP 306975 X5783do ROLLS-ROYCE LTD. INSTRUCTIONS. To Mr Clarke Order No. Customer's No. Herewith Dynamo No 775 off Chassis C.A.K.5. You will notice solder has started… | ||
| Scan091 | The test results of a 20 HP Dynamo No. 775 from chassis GAK.5, which was reported to fail to charge. | ||
| View original record | X5783do To HY. from EFC. c. SFT/Mr.Brock. EFCL/11.7.27. 20 HP. DYNAMO NO.775 EX CHASSIS GAK.5. Customer's complaint is that this dynamo "fails to charge". On putting this on our rig and running it, we… | ||
| Scan092 | Instructions to examine Dynamo No. 235 from Chassis 53 S.4 due to melted solder. | ||
| View original record | RR 238 (150 BKS.) (OB 461-8-12-24) MP 306975 X5783do ROLLS-ROYCE LTD. INSTRUCTIONS. To E.7.C. Order No. Customer's No. Herewith Dynamo No 235 off Chassis 53 S.4 A.T. Harvey Esqr. Please note solder… | ||
| Scan093 | Instruction note regarding a returned dynamo from chassis C.746 where the commutator has been polished. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.F.C. Customer's No. Herewith Dynamo No 671 off Chassis C.746 returned from Messrs. Cockshoot. You will notice solder… | ||
| Scan094 | Inspection report on faulty 20hp dynamos from two different chassis. | ||
| View original record | RR 23B (150 BKS.) (SH57.29-6-20.) MP 224358 X5783do ROLLS-ROYCE LTD. INSTRUCTIONS. To: EFC Order No. AC.92 Customer's No. X4383 14. July 1924 Faulty 20 hp Dynamos. Nos. 671 (Chassis GF 46) and 235… | ||
| Scan095 | Instruction sheet detailing a failure analysis of an electrical component, focusing on brushes, the commutator, and the charging circuit. | ||
| View original record | RR 238 (150 BKS.) (SH57.29-6-20.) MP 224358 ROLLS-ROYCE LTD. INSTRUCTIONS. To Order No. Customer's No. 2 however, have been badly pitted. (i.e before it was cleaned). The failure is probably due to… | ||
| Scan096 | Works instruction sheet detailing the faults causing a machine failure. | ||
| View original record | RR 238 (150 BKS.) (SH57. 29-6-20.) MP 224358 ROLLS-ROYCE LTD. INSTRUCTIONS. To 19 Order No. Customer's No. 3 would result in high output. These faults together would be ample to account for the… | ||
| Scan097 | Two 20 HP dynamos, one from chassis GF.46 and the other 55.S.4. | ||
| View original record | X8783do To BY. from EFC. c. to Sft/Mr.Brock. EFC1/LG16. 7.27. 20 HP. DYNAMOS. (1) No.671. Ex. Chassis GF.46. (2) No.235. " " 55.S.4. Attached herewith please find a copy of my assistants' report in… | ||
| Scan098 | Inspection report on two faulty 20 HP dynamos, numbers 671 and 235. | ||
| View original record | C O P Y. AC.92. 14th. July 1927. X.4383. FAULTY 20 HP. DYNAMOS. (Nos.671 (chassis GF.46) and 235 (Chassis 55.S.4.)) These machines which are of the 29 coil type were received from Mr. Brock for our… | ||
| Scan099 | Report continuation page detailing faults leading to a machine failure. | ||
| View original record | contd :- -2- The commutator micas are undercut, but the solder is thrown out. The control brush setting is 113° which would result in high output. These faults together would be ample to account for… | ||
| Scan100 | Complaints and findings related to 20 HP dynamos from four different chassis. | ||
| View original record | To EY. from EFC. c. Mr. Brock. X578300 EFC4/T18.8.27. 20 HP. DYNAMOS. - COMPLAINTS. No.114 Ex Chassis 57.S8. This is a 29 segment machine of a comparatively early type with an early brush setting of… | ||
| Scan101 | Instruction sheet requesting a report on solder running from two different vehicle chassis. | ||
| View original record | RR 238 (150 BKS.) (DB 451-8-12-24) MP 306975 X5783do ROLLS-ROYCE LTD. INSTRUCTIONS. To E7C.. Order No. Customer's No. Herewith. Brown No. 189 (20HP) of Chassis. L.J 65. (Solder Run) No. OR 75 of… | ||
| Scan102 | Inspection report on a returned 20 HP Dynamo No.489 from chassis 47-G.5. | ||
| View original record | X5783de To BY. from EFC. c. SFT/Mr. Brock. EFCL/T30.8.27. 20 HP. DYNAMO No.489 EX CHASSIS 47-G.5. We have duly inspected this machine. It does not appear to have suffered from any actual failure, and… | ||
| Scan103 | Instruction memo regarding the inspection of two faulty 20 HP dynamos. | ||
| View original record | RR 238 (150 BKS.) (OB 461-8-12-24) MP 306975 X57834 ROLLS-ROYCE LTD. INSTRUCTIONS. To E.F.C. Order No. Customer's No. Herewith 20HP Dynamos No. 123 off Chassis 50.S1. & No. 1025 off Chassis. GRK 78… | ||
| Scan104 | The failure analysis of two 20 HP dynamos from chassis 50 S.1 and GHK.78. | ||
| View original record | To EY. from EFC. c. Mr. Brock X5783do EFC L/T2.9.27. 20 HP. DYNAMOS. No.123 Ex Chassis 50 S.1. This is a 29 segment machine and a very early one. The failure has been due to the usual familiar… | ||
| Scan105 | Continuation page stating that it is unnecessary to receive further machines as the causes of failure are sufficiently known. | ||
| View original record | Contd. -2- EFC1/T2.9.27. diagnosing. In the other case, however, we feel that the causes of failure are, generally speaking, sufficiently known to render it unnecessary for us to receive further… | ||
| Scan106 | Instruction sheet detailing the investigation of faulty 20 HP 57 Segment Dynamos. | ||
| View original record | RR 238 (50 BKS.) (SH57.29-6-20.) MP 224358 X5783 do ROLLS-ROYCE LTD. INSTRUCTIONS. To EFC. Order No. AC. 95. Customer's No. X 5783 do. 3. Nov. 1927. 20 h.p 57 Segment Dynamos Returned as Faulty. Four… | ||
| Scan107 | Fault report detailing issues with solder running on two separate components, one of which also had sticky brushes. | ||
| View original record | RR 238 (150 BKS.) (SH57. 29-6-20.) MP 224358 ROLLS-ROYCE LTD. INSTRUCTIONS. To 19 Order No. Customer's No. 2 No 1307 (EFC6/T16.5.27) Solder just begun to run. Brush angles &c OK. Caused by over-oiling… | ||
| Scan108 | The inspection results for three failed 20 HP dynamos. | ||
| View original record | To BY. from EFC. c. Mr. Brock. c. EP. X5783do EFC1/T4.11.27. 57 SEGMENT 20 HP. DYNAMOS. Of the above machines we have so far had three returned to us for inspection of the cause of failure :- No.1749.… | ||
| Scan109 | Faulty Dynamo received from customer Mrs Titley for chassis GYK-39, requesting an examination and report. | ||
| View original record | c to EFC X5783do Hm/AVS1/MW5.1.28. BLUE SHEET 02581 - o/89385. CHASSIS GYK-39 - MRS TITLEY COLLEGE PLACE CHILWELL. We have received from the above customer 1 D.50836 20 HP. Dynamo No.1818 with a… | ||
| Scan110 | Requesting a reply for a report on a 20 HP Dynamo removed from chassis GYK-39. | ||
| View original record | K5783 do Hm/AVS7/MW13.1.28. EFC BLUE SHEET 02581 - o/ 89385 CHASSIS GYK-39 - MRS TITTLEY Will you please let us have a reply to our Memo. ref. Hm/AVS1/MW5.1.28 in which we asked for a report on: 1.… | ||
| Scan111 | Faulty Dynamo received from a customer's chassis. | ||
| View original record | X5783do Hm/AVS2/MW20.1.28. EFC to Mr. Ains Brock. re CHASSIS GAJ-20 F.A.MAWHINNEY & CO. We have received from the above customer: S.D.50836 Dynamo No.G.2.TM. 20 H.P. with a complaint that same is… | ||
| Scan112 | Modifications for a special winding on a 20 HP chassis dynamo armature. | ||
| View original record | X5783do BY/RD2/ML.27.2.28. C. EFC. 20 H.P. CHASSIS - DYNAMO ARMATURE - SEC:8070/90. It is desired to make quickly a dynamo armature with a special winding, the parts are all standard, it is only a… | ||
| Scan113 | Experiment to alter characteristics on chassis GCK76 for Mr. J. Bartram. | ||
| View original record | X5783 bo To Hm/WW. from EFC. EFC5/T24.2.28. CHASSIS GCK76. - J. BARTRAM Your ref, Hm/WW8/EW23.2.28. The matter referred to in Mr. Bartam's letter is having our due consideration. As there have been… | ||
| Scan114 | Confirming alterations to a 20 HP dynamo armature winding. | ||
| View original record | To BY/RD. from EFC. X5783do EFC6/T24.2.28. This is to confirm that as arranged in conversation you will instruct a standard 20 HP. dynamo armature with the winding altered in the manner suggested,… | ||
| Scan115 | Typed letter responding to a customer query regarding dynamo charging capacity for chassis GCK-76. | ||
| View original record | C O P Y. Hm/WW15/EW27.2.28. 27th. February, 1928. J. Bartram, Esq., 54, Curzon Street, Mayfair, London, W.1. Dear Sir, Re 20HP. Rolls-Royce Chassis GCK-76. With further reference to your letter of the… | ||
| Scan116 | Faulty 20 HP dynamo from chassis GHJ-34 which fails to charge, and querying which account to charge for the repair. | ||
| View original record | X5783do By. C. to EFC. C. to Sft/Mr. Brock. Hm/AVS6/KW3.3.28. Chassis No. GHJ-34. R.R. Cricklewood. We have received from the above dept. 1. 20 HP type dynamo, NO. I-8-R.M. with a complaint that same… | ||
| Scan117 | Need to differentiate between 20 HP and 40/50 HP chassis for customer complaints. | ||
| View original record | To Hm/WW. from EFC. V5783do EFC3/T8.3.28. In many cases concerning complaints from customers where the chassis No. is given, we do not know whether it is refering to 20 H.P. or 40/50 H.P. It would be… | ||
| Scan118 | 20 HP dynamo armature for chassis GCK.76, considering modifications to meet customer requirements for higher output. | ||
| View original record | X.5783do To Hm/WW. from EFC. c. BY. EFC4/T8.3.28. 20 HP. DYNAMO EX CHASSIS GCK.76. -J. BARTRAM- Answering your Hm/WW5/EW7.3.28, you will be intested to know that we already have made up a 20 HP.… | ||
| Scan119 | Complaint of a dynamo failing to charge on chassis GRJ-41 for H. Broadmead Esq. | ||
| View original record | X5783do c to Sft.Mr.Brock. c to EFC. Hm/AVS15/MW8.3.28 re CHASSIS GRJ-41 - 20 HP. - H.BROADMEAD ESQ. We have received from the above customer 1. 20 HP. type Dynamo No.S-9-I with a complaint that same… | ||
| Scan120 | The procedure for prefixing chassis numbers with their horsepower rating for clarity. | ||
| View original record | EFC. X5783do Hm/WW1/EW9.3.28. 20HP. Chassis GCK-76. J. Bartram, Esq. With reference to your EFC3/T8.3.28, we gather that the Chassis numbers and letters issued to the "public" do not convey any… | ||
| Scan121 | The modification and fitting of a 20 HP dynamo to a customer's chassis. | ||
| View original record | EFC. X5783 do BY/Cgh5/G.19.4.28. With reference to the 20 HP. dynamo which you have modified to give a greater output at high road speeds, which we intend to have fitted to the 20 HP. chassis… | ||
| Scan122 | Sending a modified 20 HP dynamo to the Stores department for fitment to a customer's chassis. | ||
| View original record | X 5483ds Despatch Stores. c. BY/Cgh. c. Hs/CEP. EFCl/T20.4.28. We are sending into the Stores one 20 H.P. dynamo which we have modified to give greater output at the higher road speeds. This is… | ||
| Scan123 | Customer complaint regarding a noisy 20 HP dynamo on chassis GAJ-73 for W.C. Thorne Esq. | ||
| View original record | Ey. c to EFC. c to Mr. Brock. X5783do Hm/AVS1/MW1.5.28. RE CHASSIS GAJ-73 - W.C.THORNE ESQ. We have received from the above customer a 20 HP. dynamo No. Y.9.C with a complaint that same is very noisy.… | ||
| Scan124 | Noisy dynamo from chassis GAJ-73, diagnosing the cause as a bearing that ran dry due to lack of oil. | ||
| View original record | X.5483do C. EFC. C. Capt. Brock. BY/Mtnl/K. 4. 5. 28. 20-HP CHASSIS GAJ-73 W.C.THORNE ESQ. Referring to Hm/AVS1/MW1.5.28., we have examined the dynamo returned from the above chassis, and although the… | ||
| Scan125 | Faulty dynamo (1696) requiring commutator truing due to a cutout failure. | ||
| View original record | X5783do EFC. 17.5.28. DYNAMO 1696 (20 H.P. 57 coil) I have seen this dynamo in Mr. Brock's Dept. It is said to charge OK. but the commutator requires truing up. The connections to the comm. have been… | ||
| Scan126 | Faulty 20 HP Dynamo from chassis GZK-59, requesting an examination and advice on where to charge the repair costs. | ||
| View original record | c to EFC. [Strikethrough text: c to Sct A/c Brook] X5-783 do Hm/AVS1/MW17.5.28. "N" Dept. - Chassis GZK-59. We have received from the above Department: 1. 20 HP. type faulty Dynamo No.1696. This… | ||
| Scan127 | Dynamo charging fault and a request for replacement parts. | ||
| View original record | MK IS/RK21.3.48. The Dynamo is not charging. The commutator seemed OK. and I could not find any signs of a loose connection on the dynamo, battery, fusebox, or in the switchbox. The only cause I could… | ||
| Scan128 | Recurring dynamo fault on chassis GZK-59 and the plan for its repair. | ||
| View original record | S/W. COPIES TO :- N. H. COPY MK5/RK2.4.28. re CHASSIS GZK-59 - MAJOR A.D.THOMSON. NENTHORN KELSO. With reference to my Memo. No.2879 MK15/RK21.3.28. Owner telephoned me to say that the new cut-out you… | ||
| Scan129 | Returned dynamo from chassis 103-DC, suggesting the issue is a customer's overcharged battery. | ||
| View original record | X5783ds H. C. EFC. C/o Mr. Brock. BY/Mtn23/K. 17. 5. 28. CHASSIS 103-DC. N DEPT. Referring to Hm/AVS12/MW14.5.28., we have received Mr. Brock's report on the dynamo returned from the above chassis,… | ||
| Scan130 | Letter from an Austrian firm about dynamo alterations on a 20 hp chassis. | ||
| View original record | R.F.C. c. Hm. This would appear to be a useful suggestion X5783 do. D/BP17/EM28.8.28. Re : Chassis No. 62-H-A. Attached is copy of letter received from an Austrian firm in regard to the dynamo on one… | ||
| Scan131 | Translated letter from an Austrian engineer detailing modifications to a dynamo to prevent sparking. | ||
| View original record | Copy of translation of Letter from Rudolf Mir, Engineer, of Graz (Austria) August 17th 1928. Dear Sirs, I have had an opportunity of examining and repairing an electric installation of your… | ||
| Scan132 | Response to a customer complaint about a repeated blowing field fuse, providing troubleshooting steps for the dynamo charging circuit. | ||
| View original record | X5783. To PN. from Hs/Pgt. c. Sg. Wor. c. H. Hd. Hs/Pgt2/ADS.7.31. CUSTOMER'S COMPLAINT. CXO-46. In reply to PNLC/WT29.6.31, dealing with a complaint of repeated blowing of field fuse. We think that… | ||
| Scan133 | Dynamo charging systems, battery life, and charging rates for customers. | ||
| View original record | -2- Hs/Pgt2/ADS.7.31 contd. If, after a complete examination, the dynamo still appears to be at fault, we should very much like to have the machine here for investigation on the bench. There is no… | ||
| Scan134 | Issues with a car's electrical system, springing, and a proposed modification to the propeller shaft lubricator. | ||
| View original record | X5782. To Wor. From Hs/Lid. Hs/Lid.2/MJ.10.7.31. GXO-46. With reference to PN11/WT6.7.31. the trouble with the electrical system on this car is difficult to explain until we have had an opportunity of… | ||
| Scan135 | Request for details about a rectified electrical fault on a customer's car to prevent future repetition of the trouble. | ||
| View original record | X5783 Cricklewood. From Hs/Pgt. Hs/Pgt.1/MJ.27.7.31. CUSTOMER'S COMPLAINT. GX6-46 We understand that you have succeeded in tracing, and rectifying, the cause of the trouble on the above car, so that… | ||
| Scan136 | Electrician's report regarding the cause of a blowing dynamo field fuse on chassis GXO-46. | ||
| View original record | N-W PGT X5783 A13/A. 28.7.31 re Chassis GXO-46 - Grylls In reply to your Hs/Pgtl/MJ27.7.31, we think that the best thing which we can do is to send you a copy of our electrician's report, which is as… | ||
| Scan137 | Complaint regarding the failure of a dynamo to charge correctly for chassis G3R-53. | ||
| View original record | X5783 PY. C.to Hs. C.to Gft. C.to EP. Hd/AVS.3/KH.29.10.31. RE: CHASSIS G3R-53 - 'N' DEPARTMENT We have received from the above Department 1. Dynamo No.S.3.0. with a complaint of failure of same to… | ||
| Scan138 | Dismantled dynamo from Mrs. Cadbury's chassis GPS.1, which failed due to an unauthorized adjustment to increase its output. | ||
| View original record | X5783 BY. C.S.M. C.M.D. C.Hs/HEW. SFT/EJB2/EG.10.11.31. Re: Chassis GPS.1. Mrs. Cadbury. 0/89 696. We have dismantled dynamo no. E.4.P. which has been returned from the above chassis, and find that… | ||
| Scan139 | The lack of recent failure records for Watford ROL magnetos and requesting updated information. | ||
| View original record | X5788 m To Hm/NRC. from EFC. EFCI/T6.5.27. RE WATFORD ROL. MAGNETO. We have no records in our experimental files of failures of Watford ROL. magnetos, excepting those due to weak magnets, which… | ||
| Scan140 | Performance and reliability of R.O.1 Magnetos. | ||
| View original record | X5783m EFC. Hm/NRC21/D6.5.27. Re R.O.1 Magnetos. In reply to your EFC1/T6.5.27, we would say that with the exception of the trouble with weak Magnets which cropped up more than a year ago, we have… | ||
| Scan141 | Customer complaint on the new car GDP-69 belonging to E.R. Corn Esq. | ||
| View original record | X5783 JLE. Lillie Hall. [struck through] a. Hc. [struck through] c. EFC. [struck through] e. BY. EP19/H13.8.30. re. Cars belonging to E.R. Corn Esq. I attach hereto copy of letter received from thus… | ||
| Scan142 | Customer complaint letter about faults with brakes, steering, and a cigar lighter that caused a fire risk in a new car. | ||
| View original record | COPY. "Selwyn" Trentham, Stock-on-Trent. 6th.Aug.1930. Messrs. Rolls-Royce Ltd., Derby. Ch. 90-NC. GHJ-78. GDP-69. Dear Sirs, Your Inspector Captain Strong called on July 15th. to inspect my cars -… | ||
| Scan143 | Incorrect wiring of a cigar lighter accessory on chassis GDP-69. | ||
| View original record | X5783 BP. c - EFC. c - Hd. c - J.E.H. (Lillie Hall) BY4/W.14-8-30. Re :- Cars belonging to E.R.Corn,Esq: - Chassis No.GDP-69 - With reference to the above and EP's memo EP19/H.13-8-30 ; it would… | ||
| Scan144 | File note cross-referencing previous correspondence concerning the Watford R.O.1. Magneto. | ||
| View original record | X.5790 For previous correspondence re Watford R.O.1. Magneto, see file X.3551. EFC. | ||
| Scan145 | Chassis 10-GIII after 10,027 miles, detailing the condition of the Magneto, Drive and Dynamo. | ||
| View original record | X5790 Extract from GWH3/RP.4.5.26. Report on Chassis 10-GIII after 10,027 Miles. X.5840a. ---------------------------------------------------- Magneto & Drive. X.3551. X.5790 Magneto and drive have… | ||
| Scan146 | Forwarding an assistant's report on a fault with the Magneto H.T. wire on a 20 HP chassis. | ||
| View original record | X579b To BY. from EFC. c. BY/RD. EFC3/T22.9.26. MAGNETO H.T. WIRE ON 20 HP. CHASSIS. Please find attached copy of my assistant's report WB.103 which is self-explanatory. You may think it worth while… | ||
| Scan147 | The deterioration of the magneto H.T. wire on a 20 HP chassis due to an oil leak and a proposed solution. | ||
| View original record | WB.103. MAGNETO H.T. WIRE ON 20 HP. CHASSIS. It has been observed that the H.T. wire from the Watford ROL magneto becomes saturated and deteriorated by oil at the point of fixing on the battery… | ||
| Scan148 | Testing of a Watford RO1 Magneto and enclosing the related report WB.116. | ||
| View original record | X5790 To BY/HM. from EFC. EFC1/T7.12.26. WATFORD RO1 MAGNETO. X3551 Herewith please receive copy of my assistant's report WW.116 in connection with magnetos No.94311. You will see that we should like… | ||
| Scan149 | Test report on a Watford RO1 Magneto No. 94311 fitted with long cams. | ||
| View original record | EFC. WB.116. 3.12.26. WATFORD RO1 MAGNETO No.94311 FITTED WITH LONG CAMS. As requested by BY/HM, we have now examined and tested this magneto. It gave quite good results on the bench and we consider… | ||
| Scan150 | Approving magnetos fitted with long cams for production use on chassis. | ||
| View original record | X5/90 c. to EP. c. to EFC. BY/Mtn11/G. 8.12.26. RECEIVED WATFORD RO.1. MAGNETOS FITTED WITH LONG CAMS. ------------------------------------------ With reference to the magneto that you submitted to us… | ||
| Scan151 | The features of a new, more silent magneto for the Phantom and 20 HP models. | ||
| View original record | X5790 HS) To EFC)FROM R. BY ) c. to BJ. RL/M10.12.26. PHANTOM MAGNETO. X.7791. Mr. North promises a more silent magneto, and one which affects the control less. There is to be - No magnetic effect,… | ||
| Scan152 | Cover letter for the production inspection and test specification for the Watford R01 Magneto. | ||
| View original record | To SFT/Mr. Ellis. C. BY. X5790 EFCL/TEO.12.26. X.5781m. WATFORD R01 MAGNETO OF THE LONG CAM TYPE. X.5790. Herewith please receive Specification of Production Inspection and Test, applicable to the… | ||
| Scan153 | Production inspection and test specification for a Watford Type R.O.1 Magneto (Long Cam Type). | ||
| View original record | X.5781m. WATFORD TYPE R.O.1. MAGNETO. X.5790. (LONG CAM TYPE) SPECIFICATION OF PRODUCTION INSPECTION & TEST. (1) The contact breaker cover shall be removed and the following details inspected :- (a)… | ||
| Scan154 | Page of testing procedures for a magneto, detailing checks on the contact breaker, running speeds, and spark gap performance. | ||
| View original record | -2- Contd. (3) The contact breaker lever shall be replaced, and a test shall be made of the tangential force at lever pin radius necessary to cause advance or retard. In various positions this shall… | ||
| Scan155 | Specifications for minimum sparking speeds of a magneto at various ignition timing positions. | ||
| View original record | -3- Contd. for (a) Fully advanced position 250 r.p.m. (b) Central position 190 r.p.m. (c) Fully retarded position.150 r.p.m. Note. The minimum sparking speed for each of the three positions can be… | ||
| Scan156 | Internal memorandum regarding an agreement to supply Watford RO.1 magnetos with longer cams. | ||
| View original record | X5790 By. from Wd. c. to EFC. Wd2/NJ20.12.26. Watford RO.1 Magnetos. Referring to By/Mtn14/G8.12.26 and EFC1/T7.12.26, also report EFC.WB.116 of 3rd inst. When Mr.North and Mr.Allen were at these… | ||
| Scan157 | Form recording the design and performance details of a magneto on test. | ||
| View original record | X5790 X.430. FORM OF RECORDING DETAILS OF MAGNETO DESIGN AND PERFORMANCE. Date:- 23-12-26 Magneto on test :- Maker :- Watford X. No :- 5790 Type :- R01 No :- 93284 (1) Weight in pounds :- 7.750 (2)… | ||
| Scan158 | Specifications for sleeve and contact breaker timing for a magneto. | ||
| View original record | -2- Contd. (4) Primary point gap :- .012" Sleeve and contact breaker timing:- Sleeve advance angle :- +30° Sleeve retard :- -30° Contact breaker angles in relation to sleeve:- | Make. | Break. |… | ||
| Scan159 | Test report page detailing results for endurance, circuit, and open circuit primary volt-speed curve tests. | ||
| View original record | -3- Contd. (6) Endurance test :- OK 4.5 mm gaps. (7) Short [strikethrough:armature] circuit test :- OK (8) Open circuit test :- OK (9) Open circuit primary volt-speed curve. Speed. Volts. Volts/Speed.… | ||
| Scan160 | Page 4 of a test report detailing a closed circuit primary ampere-speed curve and sparking characteristics. | ||
| View original record | -4- Contd. (10) Closed circuit primary ampere-speed curve. Speed. Amperes. Speed. Amperes. 100 .92 2000 2.47 200 1.32 2400 2.50 300 1.62 2800 2.51 400 1.88 3200 2.515 800 2.11 3400 2.52 1200 2.40 1600… | ||
| Scan161 | Test results page detailing secondary milliamps, primary point gaps, and contact breaker timing. | ||
| View original record | -5- Contd. (14) Secondary milliamps :- Maximum :- 17.5 Minimum :- 9.4 (15) Primary point gap after previous test :- .010" Primary point gap :- .008 Contact breaker timing. Make ratio .731 | Make. |… | ||
| Scan162 | Remarks on operational silence and the tangential force required to advance the cam lever. | ||
| View original record | -6- (16) Remarks re silence of operation :- Reasonably quiet (17) Tangential force to advance cam lever:- 3 lbs wt. EPC. | ||
| Scan163 | Burning of distributor points on a 20 HP engine when using an R.O.1 magneto. | ||
| View original record | X5783 To Hm. from EFC. EFC4/T30.12.26. BURNING OF 20 HP. BATTERY IGNITION DISTRIBUTOR POINTS WHEN RUN ON R.O.1.MAGNETO. Mr. Royce once asked me whether the burning of the battery ignition distributor… | ||
| Scan164 | Technical query regarding the ignition battery and magneto contact breaker block, including a sketch and discussion of angles. | ||
| View original record | X5790 To E. EFC. ( FROM R. EY. Hs. At Le Canadel ). RI/M9.2.27. DESPATCHED FROM WW. c. to Wor. BJ. 12.2.27. IGNITION - BATTERY & MAGNETO CONTACT BREAKER. BLOCK. I am not quite sure E's off-set angle… | ||
| Scan165 | Response to a query regarding electrical troubles with magneto and battery ignition points. | ||
| View original record | 1 Copy to To EFC. from Hm/NRC. 3 Copies to R.W. Esq 1 Copy to O'G ECB X5790 NECT/BM/4.2.27 In reply to your query re electrical troubles :- (1) Magneto Platinum Points. With regard to the R.O.6.… | ||
| Scan166 | Report page concerning high tension distributor points and dynamo brushes for 20 HP engines, attached to a blank inspection certificate form. | ||
| View original record | -2- 1 Copy to O. i/c. E.C.R. 3 Copies to R.R. Ltd. 1 Copy to O. i/c. R.R. A.I.D. FOR CHIEF INSPECTOR OF ENGINES. AERONAUTICAL INSPECTION DEPT. (Signed) ACTING GROUND ENGINEER ON BEHALF OF MESSRS.… | ||
| Scan167 | The delivery and fitting of sleeveless magnetos and clocks for different chassis models. | ||
| View original record | X5790 To R. from BY. c. EFC. BY4/H22.2.27. SLEEVELESS MAGNETOS. X. 7791 CLOCKS. X. 5790 In reply to R1/M9.2.27 where you ask me to ascertain what is the earliest delivery of the modified machine of… | ||
| Scan168 | Outlining the requirements and queries regarding magnetos for a 20 HP non-sleeve type engine. | ||
| View original record | To BY. from R. At Le Canadel. c. to BJ. EFC. Hs. E. X5790 R5/M26.2.27. REC'D & DESPATCHED FROM WW 1.3.27. HE 20 HP. MAGNETOS & NON-SLEEVE TYPE. X.5790. X.7791. X.8790. X5792 EFC. should say if we can… | ||
| Scan169 | Suitability of a sleeve type magneto for the 20 HP chassis. | ||
| View original record | X5790 To R. from EFC. c. BJ. E. c. Wor. Hy. c. Da. Rg. c. Wd. (2 Euco) EFC5/T8. 3. 27. 20 HP. CHASSIS MAGNETO. Is there good reason for departing from the sleeve type of magneto in the case of the 20… | ||
| Scan170 | Report comparing the performance of sleeve-type magnetos against rotating armature machines for various engine models. | ||
| View original record | -2- Contd. there is less unwanted energy than in the case of the rotating armature machine where we must have a good deal of unwanted energy at the high speeds in order to obtain a good slow speed… | ||
| Scan171 | Altering sleeve position in relation to engine noise, the R.O.1 magneto, and an opinion on various magneto suppliers. | ||
| View original record | -3- Contd. (Mirrored Stamp Text: VERONAUTICAL INSPECTION DEPT. FOR CHIEF INSPECTOR OF ENGINES) (Stamped Text Top Left: COPY to Mr E.W.H Copies to Mr H.S COPY to Mr E.C.S ) A change of sleeve position… | ||
| Scan172 | Extract of a communication regarding the 20 HP magneto, starting improvements, and testing of experimental parts. | ||
| View original record | X5790 Contd. Extract from:- RH./M1.2.3.27. X.4652. I agree about 20 HP. magneto. See what can be done to improve the ease of starting, and avoid spoiling our battery jump spark distributor. I will… | ||
| Scan173 | Potential improvements and testing procedures for a battery ignition system. | ||
| View original record | E.F.O.) TO HS. FROM R. BY. ) (At Le Canadel.) X5790 R1/M12.3.27. REC'D & DESPATCHED FROM WW. 17.3.27. Copy to E.E. BATTERY IGNITION. X4041 X6652 RECEIVED 14 MAR 1927 Are we making any progress? I have… | ||
| Scan174 | Request to return a faulty Watford magneto for repair due to the development of excessive end play. | ||
| View original record | REQUISITION ON PURCHASING DEPT. PLEASE ORDER THE FOLLOWING X5790 To Wd. from EFC. EFC4/T16.3.27. WATFORD RO MAGNETO. Would you kindly have returned to the Watford Magneto Co. for repair and… | ||
| Scan175 | Modification of Watford magnetos for timing tests, specifically regarding the interchangeability of EO6 and RO1 sleeves. | ||
| View original record | X5790 To EY/RD. from EFC. EFC2/T28.3.27. X8796 X5790 MODIFICATION TO WATFORD MAGNETOS FOR TIMING TESTS, WITH SPECIAL CAMS. You will remember that some time ago we rearranged the standard Watford EO6… | ||
| Scan176 | Quote from North & Sons Ltd. for overhauling a misfiring Watford RO.1 Magneto with a broken slip ring. | ||
| View original record | EFC.from Wd. X5790 Wd5/NJ4.4.27. Watford RO.1 Magneto No.78772. Referring to your note EFC4/T16.3.27, we are this morning in receipt of a letter from North & Sons Ltd. stating that on examining and… | ||
| Scan177 | Alteration of a magneto sleeve for experimental purposes. | ||
| View original record | Hs APP 5 1927 To RMC. C. EFC. X5790 BY/RD4/ML.4.4.27. WATFORD MAGNETO. In order to carry out certain experiments on the R.O.1 Magneto, it is necessary to alter a sleeve which was used for similar… | ||
| Scan178 | Agreeing to a previous note regarding a Watford FO.1 Magneto, number 78772. | ||
| View original record | To Wd. from EFC. X5790 EFC3/T5.4.27. Watford FO.1. MAGNETO No.78772. Referring to your note Wd5/NJ4.4.27, we agree to this. EFC. | ||
| Scan179 | Requesting the overhaul and remagnetising of a Watford RO1 Magneto for special timing tests. | ||
| View original record | To Wd. from EFC. X5790 EFC2/T6.4.27. WATFORD RO1 MAGNETO. No. 80208. We hand you herewith Watford RO1 magneto. Would you please have this returned to the makers for overhaul and remagnetising only,… | ||
| Scan180 | Magneto requirements for Phantom and 20HP models, and issues with supplier North & Co. | ||
| View original record | DA/EV. ) To BY. ) FROM R. EFC ) Le Canadel. c. to BJ. Wor. E. Mr. North. XS.790 R1/M15.4.27. REC'D DURING EASTER, AND DESPATCHED 20.4.27. MAGNETOS- 40/50 & 20 HP. X.5790. X.7791. x 5792. I believe I… | ||
| Scan181 | Letter from F.H. Royce detailing requirements for magnetos for the Phantom and 20HP cars. | ||
| View original record | Copy to - BJ Copy to - GY Copy to - BY Copy to - EFC. X5790 "ELMSTEAD" WEST WITTERING. CHICHESTER. R. B. North Esq., at Messrs North & Sons Ltd. Whippendell Road. WATFORD. 26th. April 1927. Dear Mr.… | ||
| Scan182 | Requesting an alteration to a Watford ROL. Magneto sleeve for timing tests. | ||
| View original record | X5790 To RHC. from EFC. EFC/L/T28.4.27. WATFORD ROL. MAGNETO. TIMING TESTS. Herewith we hand to you the sleeve of an R.O.1. magneto. Will you please have the contact breaker end supporting ring moved… | ||
| Scan183 | Proposed magneto modification for the 20 HP chassis. | ||
| View original record | X5790 R. c.EFC. BY4/H. 17.5.27. 20 HP. CHASSIS. RE PROPOSED MAGNETO MODIFICATION. X.5792 Referring to your recent suggestion that you would like to have the magneto on the 20 HP. chassis considered… | ||
| Scan184 | Instructions regarding the examination of a Watford RO1 magneto after a 10,000-mile test. | ||
| View original record | RR 238 (150 BKS.) (DB 481-8.12.24) MP 306975 X5790 ROLLS-ROYCE LTD. INSTRUCTIONS. To E.F.b. Order No. WC21 Customer's No. X 5790 Watford RO1 magneto No 94729 fitted with now standard longer cams. This… | ||
| Scan185 | Instructions regarding the testing of a petrol-proof instruction plate for a Watford RO1 magneto. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 X5790² ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.7.b. Order No.: WC46 Customer's No.: X Instruction plate on Watford RO1 magneto On the occasion of his last… | ||
| Scan186 | The results of petrol-proofing tests on instruction plates for a Watford RO1 Magneto. | ||
| View original record | X 5790 To BY/Cgh. from EFC. EFC2/T3.11.27. INSTRUCTION PLATE FOR WATFORD RO1 MAGNETO. We have duly tested these instruction plates with petrol, and the following is copied from my assistant's report… | ||
| Scan187 | Suitability and prolonged testing of Bosch magnetos for 6-cylinder and 20 HP cars. | ||
| View original record | EFC. from R. c. to BJ. BY. HS. X5790 R6/M2.12.27. BOSCH MAGNETOS. X.5790. X.4568. X5791. Regarding the 6 cyl. magneto suitable for our cars, we have looked over this and have come to the conclusion… | ||
| Scan188 | Testing and performance of Bosch magnetos for the 20 HP chassis. | ||
| View original record | To R. from EFC. c. BJ. E. c. EY. Wor. X5790 EFCl/T13.12.27. BOSCH MAGNETOS FOR CHASSIS. X.5791 B R6/M2.12.27. A prolonged test of this Bosch magneto with jump spark distributor will be made if E. will… | ||
| Scan189 | Reducing the specified range for the 20 HP magneto and potential design changes. | ||
| View original record | EFCl/T13.12.27. -2- Contd. The present specified range for the 20 HP. magneto is 58°. If we could have this figure reduced to say 40°, then we think that a magneto with the short cobalt magnets,… | ||
| Scan190 | The falling efficiency and misfiring issues of the RO.1. Magneto. | ||
| View original record | c EFC from Mx Handwritten: 5-0 (circled) X5790 1320 Mr6/T13.3.28 RO.1. Magneto The efficiency of the above seems to be falling off lately. We have returned several to the Makers on this account, and… | ||
| Scan191 | Letter to Messrs. North & Sons regarding complaints about the performance and testing of R.O.1 magnetos. | ||
| View original record | C. ROY C. MX. C. EFC. BY4/G.14.3.28. 14th. March 1928. Messrs. North & Sons, Whippendell Road, Watford. Dear Sirs, R.O.1 MAGNETOS. ---------------- Our Test Department have been complaining for some… | ||
| Scan192 | Query regarding the production acceptance test for R.O.1. magnetos. | ||
| View original record | X5790 EY. from EFC. c. Mx. c. Roy. EFC4/T15.3.28. R.O.1. MAGNETOS. With reference to EY4/G14.3.28, the query arises as to whether R.O.1. magnetos in question have satisfactorily passed our production… | ||
| Scan193 | The testing of R.O. 1 magnetos, specifically the failure of magneto No.103503 upon re-test. | ||
| View original record | EFC. C. MX. (struck through) C. Reg. (struck through) X5790 BY12/G.16.3.28. R.O. 1 MAGNETOS. Referring to EFC4/T.15.3.28. all R.O.1 magnetos pass through the routine test called for in your… | ||
| Scan194 | The return of Magneto No. 103503 to North & Sons Ltd. for investigation. | ||
| View original record | X5790 Mr. C. EFC. G. ROY. BY/Mtn4/K. 19. 3. 28. R.O.1. MAGNETOS. Referring to BY4/G14.3.28., we have now received a reply from North & Sons Ltd., in which they state that they would prefer us to… | ||
| Scan195 | Instructions for a new electrical performance specification for magnetos on the 20HP chassis. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 X5790 ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.7.C. Order No.: WC93 Customer's No. X5790 X5792 Magneto for R.R. 20HP chassis. In view of the unsatisfactory… | ||
| Scan196 | Specification of performance for a magneto for the 20 HP car. | ||
| View original record | X5790 29.3.28. SPECIFICATION OF PERFORMANCE OF MAGNETO X430 FOR R.R. 20 H.P. CAR. (1) The magneto shall be merely a high tension generator, i.e. no distributor is necessary but a H.T. terminal should… | ||
| Scan197 | Magneto testing procedures and performance requirements. | ||
| View original record | -2- Contd. low tension and the high tension terminal connected to the metal framework of the magneto. (c) Immediately following (b) an open circuit test at 1500 r.p.m. for quarter of an hour with… | ||
| Scan198 | Specifications for magneto performance including timing lever positions and operational limits. | ||
| View original record | -3- Contd. A. 250 r.p.m. for the fully advanced position of the timing lever. B. 200 r.p.m. for the central position. C. 180 r.p.m. for the fully retarded position. Note:- The minimum regular sparking… | ||
| Scan199 | Letter to Messrs. North & Sons Ltd. regarding a specification for R.O.I. magnetos for a 20 HP chassis. | ||
| View original record | X5790 c. Mailing c. By. EFC7/T. 3rd. April, 1928. Messrs. North & Sons Ltd., Whippendell Road, Watford. Dear Sirs, Regarding the correspondence which our Mr. Bailey has had with you concerning the… | ||
| Scan200 | Issues with Watford R.O.1 magnetos and the sourcing of a less costly replacement. | ||
| View original record | R. from EFC. c. BJ. E. c. Da. EY. c.Wor. MX. X5790 EFE2/T11.4.28. WATFORD R.O.1. MAGNETOS. X 5792. Owing to some trouble with recent deliveries of R.O.1 sleeve type Watford 20 H.P. magnetos, i.e. poor… | ||
| Scan201 | Suspected depreciation of magnetism in Watford magnetos types EC6, EW6, and RO1. | ||
| View original record | To Mx. from EFC. c. Roy. c. EV. X5790 EFC3/T28.4.28. WATFORD MAGNETOS TYPES EC6, EW6 and RO1. We suspect that Watford magnetos are subject to some depreciation of magnetism after delivery to us and… | ||
| Scan202 | The depreciation of magnetism in Watford Magnetos, types EC6 and H01. | ||
| View original record | EFC. X5790 Mx10/T30.4.28. WATFORD MAGNETOS TYPES EC6 AND H01 X.7791 X.8796 X.5790 In reply to your EFC3/T28.4.28 we have not up to the present any means of determining whether there is any… | ||
| Scan203 | Comparing the performance of Watford, Lucas, and Thomson-Houston magnetos for cars and aero engines. | ||
| View original record | EFC. } FROM R. HS. } HY. } X5790 R1/M21.6.28. O. to BJ. " " WOR. " " RG. X7791 MAGNETOS. X.8793 CAR. Mr. Lidsey's report on Phantom experimental cars says that Watford magnetos are quiet, while Lucas… | ||
| Scan204 | Request to test a magneto for misfires at specific speeds and load conditions. | ||
| View original record | EFC. YS790 20.9.28. Herewith R.O.l. magneto No.105629. Please test and report on this magneto as to the test report on misfires at 15 to 18 M.P.H. full throttle full load as per our conversation this… | ||
| Scan205 | Instructions regarding complaints and testing of inefficient Watford R01 magnetos. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 X 5790 ROLLS-ROYCE LTD. INSTRUCTIONS. To: EFC Order No.: WD 13 Customer's No.: Xo Watford R01 magnetos. We have had several complaints from time to time of… | ||
| Scan206 | Instructions regarding a failure to comply with specifications, detailing issues with safety gap voltage and an obsolete contact breaker. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To Order No. Customer's No. 19 failed to comply with items 3, 6 and 8 on that specification. In the case of item 3 the… | ||
| Scan207 | Faulty Watford R.O.1. magneto requiring correction. | ||
| View original record | To Roy. from EFC. d. Despatch Stores. X5790 EFC5/T29.8.29. WATFORD R.O.1. MAGNETOS. We are sending into the Stores a Watford R.O.1. magneto No.105629 which was stated by the Test Dept. to be faulty.… | ||
| Scan208 | Faulty Watford R.O.1 magneto, confirming the fault and requesting a replacement. | ||
| View original record | X5790 To Mx. from EFC. EFC5/T29.9.28. WATFORD R.O.1. MAGNETOS. Referring to the R.O.1 magneto No.105629 which you recently submitted to us on account of faulty operation, resulting probably from too… | ||
| Scan209 | Letter to Messrs. North & Sons Ltd. regarding complaints and test failures of R.O.I. magnetos on a 20 HP chassis. | ||
| View original record | X5790 c. BY c. Mailing. EFCL/T. 29th Sept., 1928. Messrs. North & Sons Ltd., Whippendell Road, Watford. Dear Sirs, The Test Dept. have once or twice had complaints of the R.O.I. magnetos on our 20… | ||
| Scan210 | Page two of a letter regarding a complaint about a misfiring magneto, No. 105629. | ||
| View original record | -2- Contd. to correspond with the references to these paragraphs in the above quoted report. We are arranging to return to you magneto No.105629 of which there is a definite complaint in our Test… | ||
| Scan211 | Urgent internal memo regarding the repair of a broken Watford Magneto Armature. | ||
| View original record | X5790 To Roy. from EFC. URGENT EFC3/T4.10.28. R.O.I. WATFORD MAGNETO ARMATURE. Herewith we hand you an armature of which the H.T. distributor insulator has unfortunately broken. Will you please… | ||
| Scan212 | Letter from North & Sons, Ltd. acknowledging receipt of correspondence and promising a full reply. | ||
| View original record | X5790 THE BRITISH MADE Watford MAGNETOS. NORTH & SONS, LTD. WHIPPENDELL ROAD, WATFORD. TELEGRAMS: AEROMAGS WESTCENT LONDON AEROMAGS WATFORD. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE CROWN AGENTS FOR… | ||
| Scan213 | Follow-up letter to Messrs. North & Sons Ltd. requesting a report on R.O.1. magneto failures. | ||
| View original record | Y5790 EFCL/T. 1st January, 1929. Messrs. North & Sons, Ltd., Whippendell Road, WATFORD. Dear Sirs, We have not yet received the full report referred to in your HWJ/BP. of October 8th last, in answer… | ||
| Scan214 | Test and inspection record for Watford Type R.O.1 magnetos. | ||
| View original record | X. 5790 X.5781m. WATFORD TYPE R.O.1. MAGNETO. X.5790. Column Headers: Magneto No. Remarks. (1) Primary gaps. (1a) Range. (2) (3) Max. & min. forces. 2 & 4 lbs. (4) (5) (6) Speeds. (a) 250 (b) 165 (c)… | ||
| Scan215 | Instructions regarding the inefficiency and noise of Watford ROI magnetos on the 20HP chassis. | ||
| View original record | RR 238 (150 BKS.) (OB 461-8-12-24) MP 306975 X5790 ROLLS-ROYCE LTD. INSTRUCTIONS. To E.F.C. Date 31 - 12 - 1928 Order No. WD2A Customer's No. X5790.X 5792. Watford ROI. magnetos. The test dept still… | ||
| Scan216 | Letter from North & Sons, Ltd. regarding a test report for Magneto No 105629. | ||
| View original record | X.5790 THE BRITISH MADE Watford SPEEDOMETERS & MAGNETOS. NORTH & SONS, LTD. WHIPPENDELL ROAD, WATFORD. TELEPHONES: LONDON 1346 GERRARD WORKS: 622 & 623 WATFORD. TELEGRAMS: AEROMAGS WESTCENT LONDON… | ||
| Scan217 | Test report for Magneto number 105629 detailing its performance as received and after adjustments. | ||
| View original record | NORTH & SONS Ltd. Continuation Sheet No. 1. Messrs Rolls-Royce Ltd., DERBY. 11th January 1929. R.O.1. MAGNETO NO. 105629. TEST REPORT. AS RECEIVED. LOW SPEED. 250 Advance. 200 Retard. LEAK ON R.R.… | ||
| Scan218 | Test report for Magneto No. 105629 from North & Sons, Ltd. | ||
| View original record | X5790 THE BRITISH MADE Watford SPEEDOMETERS & MAGNETOS. NORTH & SONS, LTD. WHIPPENDELL ROAD, WATFORD. TELEPHONES: LONDON 1346 GERRARD WORKS: 622 & 623 WATFORD. TELEGRAMS: AEROMAGS WESTCENT LONDON… | ||
| Scan219 | Investigation into the R.O.1 Magneto's timing, leak test, and safety gap settings. | ||
| View original record | NORTH & SONS Ltd. Continuation Sheet No. 1 The timing on the R.O.1 Magneto is critical but on further investigation it was found that the leak test closely followed the low speed performance.… | ||
| Scan220 | Test results for an experimental tunnel, focusing on cobalt magnets and extended pole shoes. | ||
| View original record | TESTS ON EXPERIMENTAL TUNNEL. COBALT MAGNETS. EXTENDED POLE SHOES. LEAK. R.R. GAP 400,000 Ohms. 800 R.P.M. Retard and up to 5,000 R.P.M. 1,400 R.P.M. Advance ditto LOW SPEED. 60 Advance 120 Retard 5½… | ||
| Scan221 | Letter to North & Sons Ltd. regarding test results and specifications for a magneto for the 20 HP car. | ||
| View original record | X5790 c. BY Mailing EFC5/T. 17th January, 1929. Messrs. North & Sons Ltd., Whippedell Road, WATFORD. X5790 X.5792 Dear Sirs, Magneto for 20 H.P. Car. We duly received yours of the 11th inst. with… | ||
| Scan222 | Letter to Messrs. North & Son regarding the unsatisfactory performance of R.O.1 magnetos. | ||
| View original record | Messrs. North & Son. (2) ------------------- Contd. We shall be pleased to hear from you as to your view of the position, in view of the fact that, as already reported, the R.O.1 magnetos being… | ||
| Scan223 | Follow-up letter to Messrs. North & Sons Ltd. regarding a magneto for a 20 HP car. | ||
| View original record | X 5790 EFC2/LG22.2.29. 22nd. Feb. 1929. Messrs. North & Sons Ltd., Whippendell Rd., Watford. Dear Sirs, MAGNETO FOR 20 HP. CAR. We do not appear to have received an answer to our EFC5/T. of the… | ||
| Scan224 | Proposal to order improved and ventilated magnetos from Messrs. North & Sons for 40/50 HP and 20 HP chassis. | ||
| View original record | O.C. C. Hs. C. EFC. C. Mr. X5790 BY14/G.18.4.29. X5791 X.5790✓ CHASSIS MAGNETOS. --------------- Messrs. North & Sons have developed improvements in both types of their magnetos which we use on… | ||
| Scan225 | The delivery and development of Watford EW6 magnetos and related parts. | ||
| View original record | X5790 EFC3/T14.5.29. Roy, from EFC. WATFORD EW6 MAGNETOS. X7791 Referring to Ry14/G18.4.29 we should be pleased to know if the six EW6A magnetos with improved windings and ventilated low tension… | ||
| Scan226 | Receipt and dispatch of various chassis magnetos and low tension contact covers. | ||
| View original record | EAC - X5790 BY. c. to EFC. c. to HS. c. to Mx. Roy/Dnl/EH29.5.29. X7791 Chassis Magnetos. With reference to BY14/G18.4.29, we yesterday received from North & Sons, 6 - E.W.6.A. R.H. Magnetos Bearing… | ||
| Scan227 | Sending a Watford RO1 Magneto to the makers for an overhaul. | ||
| View original record | 15790 Roy. from EFC. c. Despatch Stores. EFC2/AD25.3.30. X.579D. WATFORD RO1. MAGNETO NO.102618. We are sending the above magneto into the Stores for return to the makers. Will you please arrange to… | ||
| Scan228 | The disposal of two Watford R.O.1 magnetos from the Electrical Experimental laboratory. | ||
| View original record | X5790. To Wd. from EFC. EFC4/AD20.5.30. X.5790. WATFORD R.O.1. MAGNETOS. We have for disposal two of these magnetos Nos. 113344 and 115500 in the Electrical Experimental laboratory. Will you please… | ||
| Scan229 | Arranging the transfer of two Watford R.O.1. Magnetos to the Electrical Experimental Laboratory. | ||
| View original record | HELD X5790. EFC. from Wd. c to G/Mt. c to ROY/Dn. c to Hm/Om. c to G/Rb. Wd6/GM.18. 6. 30. WATFORD R. O. 1. MAGNETOS. In reply to yours EFC4/AD2O. 5. 30 (X.5790.) arrangements have been made to… | ||
| Scan230 | Specification of performance for a magneto for the R.R. 20 HP car. | ||
| View original record | SPECIFICATION OF PERFORMANCE OF MAGNETO FOR R.R. 20 H.P. CAR. (1) The magneto shall be merely a high tension generator, i.e. no distributor is necessary but a H.T. terminal should be provided suitably… | ||
| Scan231 | Page 2 of a document outlining a series of magneto testing procedures, including short circuit, open circuit, and utility tests. | ||
| View original record | Contd. -2- (b) Immediately following (a) a short circuit test in which it is run at 1500 r.p.m. for half an hour with timing lever central and primary and secondary windings short circuited, i.e. with… | ||
| Scan232 | List of specifications for magneto timing, operation, and physical forces. | ||
| View original record | -3- Contd. A. 250 r.p.m. for the fully advanced position of the timing lever. B. 200 r.p.m. for the central position. C. 180 r.p.m. for the fully retarded position. Note. The minimum regular sparking… | ||
| Scan233 | Technical enquiry to B.T.H. Co. Ltd. about a distributorless magneto for the 20 HP car. | ||
| View original record | X5796 Also sent to Lucas Co. (Ref. E7C3/T4.4.28) " " to M.L. Co. (Ref. E7C4/T4.4.28) EFC6/T. 3rd April, 1928. Messrs. The B.T.H. Co. Ltd., Alma Street, Coventry. For the attention of Mr. A.P. Young:… | ||
| Scan234 | Page 2 of a letter enclosing a magneto performance specification for the 20 HP car. | ||
| View original record | -2- Contd. Enclosed please find a copy of a General Specification of Performance of such a magneto suitable for the 20 H.P. R.R. car. We should be glad to hear from you in the first instance whether… | ||
| Scan235 | Letter from The M-L Magneto Synd. Ltd. concerning the requirements for an improved magneto. | ||
| View original record | TELEGRAMS: "CARLTON, COVENTRY." TELEPHONE 5001-2-3 The M-L Magneto Synd. Ltd. VICTORIA WORKS, COVENTRY. REPRESENTATIVES AND AGENTS FOR HOME TRADE WITH MANUFACTURERS Birmingham T. T. Tripp, Empire… | ||
| Scan236 | Performance issues with Watford magnetos and the subsequent search for a less costly replacement. | ||
| View original record | R. from EFC. c. BJ. E. c. Da. BY. c.Wor. Mx. EFE2/T11.4.28. etc WATFORD R.O.1. MAGNETOS. for 20HP. X.5792 Owing to some trouble with recent deliveries of R.O.1 sleeve type Watford 20 H.P. magnetos,… | ||
| Scan237 | Suitability and prolonged testing of Bosch magnetos for 6-cylinder and 20 HP cars. | ||
| View original record | EFC. from R. c. to BJ. BY. HS. 5791 R6/M2.12.27. BOSCH MAGNETOS. X.5790. X.4568. Regarding the 6 cyl, magneto suitable for our cars, we have looked over this and have come to the conclusion that it is… | ||
| Scan238 | Prolonged testing and performance considerations of Bosch magnetos for a 20 HP chassis. | ||
| View original record | X5791 To R. from EFC. c. BJ. E. c. BY. Wor. EFC1/T13.12.27. BOSCH MAGNETOS FOR CHASSIS. X5790 R6/M2.12.27. A prolonged test of this Bosch magneto with jump spark distributor will be made if E. will… | ||
| Scan239 | Modifying the 20 HP magneto's specified range by using short cobalt magnets. | ||
| View original record | EFC1/T13.12.27. -2- Contd. The present specified range for the 20 HP. magneto is 58°. If we could have this figure reduced to say 40°, then we think that a magneto with the short cobalt magnets,… | ||
| Scan240 | Requirements for a Bosch magneto for a 20 HP engine. | ||
| View original record | X5791 EFC2/T13.12.27. To Roy. from EFC. c. By. BOSCH MAGNETO FOR 20 HP. X5790 We are anxious to know if the Bosch people make a magneto suitable for the 20 HP. - one to be of the sleeveless type,… | ||
| Scan241 | Unsuccessful enquiry to Bosch for a magneto for the 20 HP chassis. | ||
| View original record | To R. from EFC. c. E. BJ. c. Ev. Roy. X5791 EFC3/T11.1.28. BOSCH MAGNETO FOR 20 H.P. CHASSIS. X4568 X5790 The result of our enquiry of Bosch as to whether they make a suitable magneto for the 20 HP.,… | ||
| Scan242 | Letter from J.A. Stevens Ltd. concerning magneto specifications and test performance data. | ||
| View original record | COPY X5791 J.A. STEVENS, LTD., UPPER RATHBONE PLACE, LONDON, W.1. January 20th 1928. JWH/FW. Messrs. Rolls-Royce, Ltd. Derby. Ref. Roy19/MG19.12.27. X5790 Dear Sirs, Adverting to our letter of the… | ||
| Scan243 | Correspondence from J. A. Stevens Ltd. regarding the supply of a magneto for a 20 HP car. | ||
| View original record | GLASGOW DEPOT. 218/222, BOTHWELL ST., C.2. TELEPHONE: CENTRAL 3154. TELEGRAMS: "ELECBRIGHT, GLASGOW." J. A. STEVENS, LTD. AUTOMOBILE ELECTRICAL ENGINEERS. MAGNETO DYNAMO & STARTING MOTOR SPECIALISTS.… | ||
| Scan244 | Sourcing of a Bosch magneto for a 20 HP engine and rejecting an alternative. | ||
| View original record | To Roy. from EFC. X4568 X5791 EFCL/T23.1.28. BOSCH MAGNETO FOR 20 HP. X5790 X4568 With reference to the attached letter from the Bosch Co. perhaps you would write to Messrs. J.A. Stevens reminding… | ||
| Scan245 | Letter to a supplier declining interest in a Magneto as it is unsuitable for their purpose. | ||
| View original record | Copy for EFC. 5791 X4568 Ref: ROY5/MG31.1.28 Your Ref: JWH/FW January 31st.1928 Messrs. J.A.Stevens Ltd. Upper Rathbone Place LONDON W.1 Dear Sirs, We thank you for your letter of the 20th instant,… | ||
| Scan246 | Letter from The British Thomson-Houston Company acknowledging a query about a distributor-less magneto for a 20-HP car. | ||
| View original record | X 5794 On Admiralty, War, India and Colonial Office Lists. THE BRITISH THOMSON-HOUSTON COMPANY LIMITED ELECTRICAL ENGINEERS AND MANUFACTURERS. HEAD OFFICE & WORKS: Rugby. REGISTERED OFFICE: CROWN… | ||
| Scan247 | Letter from The British Thomson-Houston Company with questions regarding the specification for a distributorless magneto for a 20 HP car. | ||
| View original record | X5790 On Admiralty, War, India and Colonial Office Lists. THE BRITISH THOMSON-HOUSTON COMPANY LIMITED ELECTRICAL ENGINEERS AND MANUFACTURERS. HEAD OFFICE & WORKS: Rugby. REGISTERED OFFICE: CROWN… | ||
| Scan248 | Letter to The B.T.H. Co. Ltd. answering queries about a distributorless magneto for a 20 HP car. | ||
| View original record | X.5790 EFC7/T. 7th May, 1928. Messrs. The B.T.H. Co.Ltd., Alma Street, Coventry. Dear Sirs, Distributorless magneto for 20 H.P. Car. We thank you for yours of the 18th ult., and regret that through an… | ||
| Scan249 | Letter from British Thomson-Houston Co. Ltd. regarding a distributorless magneto for a 20 HP car. | ||
| View original record | X579b On Admiralty, War, India and Colonial Office Lists. THE BRITISH THOMSON-HOUSTON COMPANY LIMITED ELECTRICAL ENGINEERS AND MANUFACTURERS. HEAD OFFICE & WORKS: Rugby. REGISTERED OFFICE: CROWN… | ||
| Scan250 | Letter from The British Thomson-Houston Company Ltd. regarding a distributorless magneto and alternative ignition system for a 20 HP car. | ||
| View original record | On Admiralty, War, India and Colonial Office Lists. THE BRITISH THOMSON-HOUSTON COMPANY LIMITED ELECTRICAL ENGINEERS and MANUFACTURERS. HEAD OFFICE & WORKS: Rugby. REGISTERED OFFICE: CROWN HOUSE,… | ||
| Scan251 | Letter from The British Thomson-Houston Company detailing an ignition system with a Type CED-6 magneto and an automatic timing device. | ||
| View original record | -2- THE BRITISH THOMSON-HOUSTON COMPANY, LIMITED. Messrs.Rolls Royce Limited. May 17th 1928 advantage of this system is that a separate distributor head with its drive is not necessary. To separate… | ||
| Scan252 | Letter to The British Thomson-Houston Co. Ltd. rejecting their offered distributorless magneto for a 20 HP car. | ||
| View original record | X8791 EFC1/T. 19th May, 1928. Messrs. The British Thomson-Houston Co.Ltd., Lower Ford Street, Coventry. Dear Sirs, Distributorless Magneto for 20 HP Car. We thank you very much for your letter of the… | ||
| Scan253 | Enquiry sent to The B.T.H. Co. Ltd. regarding a distributorless magneto for a 20 HP car. | ||
| View original record | XB790L Also sent to Lucas Co. (Ref. CE3|T.4428) " " to M.L. Co. (Ref. 4|T—) EFC6/T. 3rd April, 1928. Messrs. The B.T.H. Co. Ltd., Alma Street, Coventry. For the attention of Mr. A.P. Young: Dear Sirs,… | ||
| Scan254 | Letter enclosing a performance specification for a magneto suitable for the 20 HP R.R. car. | ||
| View original record | -2- Contd. Enclosed please find a copy of a General Specification of Performance of such a magneto suitable for the 20 H.P. R.R. car. We should be glad to hear from you in the first instance whether… | ||
| Scan255 | Letter from Joseph Lucas Limited discussing the supply of a distributor-less magneto for a 20-HP Car. | ||
| View original record | X.5799 REGISTERED OFFICES & GENERAL DEPTS, GREAT KING STREET, BIRMINGHAM. LONDON OFFICE & SHOWROOMS, 224 SHAFTESBURY AVENUE, W.C.2. TRADE MARK JOSEPH LUCAS LIMITED ELECTRICAL DEPARTMENT WELL STREET… | ||
| Scan256 | Letter from Joseph Lucas Ltd. regarding dual ignition systems on current models. | ||
| View original record | JOSEPH LUCAS LTD., To Messrs.Rolls Royce,Limited. DERBY. PAGE 2. DATE 5. 4. 1928. ignition to the other. On current models we believe you have standardised a dual system but the exact details of this… | ||
| Scan257 | Letter to Messrs. Joseph Lucas Ltd. acknowledging their remarks and advising they will be considered. | ||
| View original record | X5790 EFC4/T. 11th April, 1928. Messrs. Joseph Lucas Ltd., Well Street, Birmingham. Dear Sirs, We thank you for yours X/R3, of the 5th inst. in answer to ours EFC3/T, of the 4th inst. We have noted… | ||
| Scan258 | Letter to Joseph Lucas Ltd. providing dimensions for a 20 HP magneto and details of the ignition system. | ||
| View original record | c. Mailing c. Roy. X549P EFC2/T. 20th April, 1928. Messrs. Joseph Lucas Ltd., Well Street, Birmingham. Dear Sirs, Further to our EFC3/T. of the 4th inst. and with further reference to yours X/R3. of… | ||
| Scan259 | Cross-reference note for further information on 20/25 magneto ignition. | ||
| View original record | X.5791. 31.12.30. For further matter relating to 20/25 magneto ignition (general) see X.6097. | ||