Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | Instruction to arrange for the fitting of a separate dynamo control scheme onto a chassis. | ||
| View original record | To RHC. from BY/RD. c. BY/HEB. EFC. X7730 BY/RD2/ML22.12.26. EAC.7. 14-EX. Will you please arrange to fit the scheme of separate dynamo control on the above chassis. That is, Switchbox to L.O.P.… | ||
| scan0002 | Proposal for electrical circuits, fuse arrangements, and a switchbox ignition test system. | ||
| View original record | To EFC. HS. (FROM R. BY. (AND E. X7730 RL/M.8.9.28. c. BJ. Wor. EAC.10 ELECTRICAL CIRCUITS. X.7780. X.7560. The battery has no fuse for the motor and main switch circuit. If one was provided there… | ||
| scan0003 | Decision on a new arrangement for electrical wiring circuits, moving to a separate charging switch. | ||
| View original record | EFC. )From R & E. Hs. ) BY. ) c. to BJ. Wor. X7730 R2/M19.9.28. EAC.10 ELECTRICAL WIRING. X.7730/40. We have decided on another arrangement of circuits. It is simpler, more easily understood, and more… | ||
| scan0004 | Sparking on the charging switch and proposing an experiment to observe it. | ||
| View original record | EFC. from R. X9730 RL/M22.9.28. CHARGING SWITCH. Ought there to be a non-inductive resistance across the dynamo field to stop sparking on the switch with a view to avoiding burning of the contacts -… | ||
| scan0005 | Observations and planned tests on the field break spark of a charging switch. | ||
| View original record | To R. from EFC. X7730 EFC3/T25.9.28. CHARGING SWITCH. Answering your RL/M22.9.28, we have made a visual observation of the character of the field break spark when the dynamo charge is switched off on… | ||
| scan0006 | New scheme for an electrical switch to prevent destructive sparking. | ||
| View original record | X7730 EFC. )from R. Hs.BY ) c. to BJ. Wor. R1/M25.9.28. EAC.10 ELECTRICAL SWITCHES. X.7730/40. Your remarks in EFC/21.9.28 pointing out that if we break the exciting circuit of the dynamo before… | ||
| scan0007 | Modifications to an ignition and charging switchbox, referencing drawing LeC. 2597. | ||
| View original record | FROM E. X7730 E2/M2.10.28. Copy to HS. Dr. EAC.10. SWITCHBOX. We send you herewith drawing LeC. 2597., shewing the above. The arrangement of the contacts on the ignition and charging switch has been… | ||
| scan0008 | Omissions and required revisions for an SS wiring diagram. | ||
| View original record | X7730 E. from By/Cgh. c. BJ. Hs. By/Cgh8/G.6.10.28. SS. WIRING DIAGRAM. X.7560. X.7730. X.7740. With reference to E1/M3.10.28 and print of LeC.2595 showing technical wiring diagram, we have shown this… | ||
| scan0009 | Request to supply 3 sets of parts for a revised switchbox arrangement on a chassis, with manufacturing notes. | ||
| View original record | X 7730 TO WORKS C. EFC. BY/RD2/ML.23.10.28. S.S. CHASSIS - SWITCHBOX. SEC:8160 - L.O.C.2597. Will you please put in hand 3 sets of the following parts, to provide a revised arrangement of switching on… | ||
| scan0010 | Parts required for the S.S. Chassis Magneto Earthing Switch. | ||
| View original record | X7730 T. B. FWD (struck through) C. EFC. BY/RD4/ML.27.10.28. S.S. CHASSIS - MAGNETO EARTHING SWITCH. D.SCHEME 403 - SEC:8250. Please put in hand 3 sets of parts to L.O.P. D.71903. Blueprints of new… | ||
| scan0011 | New parts and blueprints for the S.S. Chassis IS switchbox. | ||
| View original record | To RHC C. EFC. X7730 BY/RD6/ML5.11.28. S.S. CHASS IS - SWITCHBOX - SEC:8160. LeC.2597. RECEIVED We are now able to complete the details for the Switchbox Unit and send you herewith blueprints of the… | ||
| scan0012 | Switchbox contact life tests. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) NP 3C6975 X7730. ROLLS-ROYCE LTD. INSTRUCTIONS. To: F.E.C. Order No.: AD 17. Customer's No.: X Switchbox Contact Life Tests. The first of these tests in which the… | ||
| scan0013 | Instruction sheet detailing burnt electrical contacts and suggesting their renewal for testing. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) VP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To_________________________________________________________19____ Order No._______2__________________ Customer's No.… | ||
| scan0014 | Results of switchbox contact life tests and requesting modifications for further testing. | ||
| View original record | To RHC. from EFC. EFC3/T8.11.28. SWITCHBOX CONTACT LIFE TESTS. Herewith we hand to you (in parts) a switchbox upon which we are making contact life tests. We have completed a life test with this… | ||
| scan0015 | Production specification and test for an EAC.10 or S.S. switchbox. | ||
| View original record | X7730 To BY. from EFC. c. Mr. Brock. EFC4/T30.11.28. EAC.10 SWITCHBOX. Herewith please receive copy of production specification/and test, Version 2, applicable to the EAC.10 or S.S. switchbox to… | ||
| scan0016 | Production inspection and test specification for a switchbox for a 40/50 chassis. | ||
| View original record | E.F.C. Y7730 30.11.28. X.7781sb. SWITCHBOX (R.R.) FOR 40/50 CHASSIS. X.7730. SPECIFICATION OF PRODUCTION INSPECTION & TEST. VERSION 2. Applicable to EAC.10 or S.S. SWITCHBOX to operate with auxiliary… | ||
| scan0017 | Continued list of electrical testing procedures for a switch or terminal box. | ||
| View original record | -2- Contd. (1) With S & T switched on, light is obtained from terminals No.5 only. (2) With H S and T switched on, light is obtained from terminals Nos. 4 & 5. (3) With M & B only switched on, light… | ||
| scan0018 | Technical memo discussing the circuit arrangement of a green lamp charge indicator and comparing it to the old Lucas system. | ||
| View original record | X7730 To R. from EFC. c. BJ. SG. c. Wor. E. c. EY. C. EFC/T4.1.29 GREEN LAMP CHARGE INDICATOR. X.4040 X.7730 Referring to your R1/M26.12.28, we regret that we cannot understand the circuit therein… | ||
| scan0019 | Cancelling the specification for production, inspection and test of the EAC.10 switchbox. | ||
| View original record | To HY. from EFC. c. Mr. Brock. X7730 EFC2/T23.1.29. EAC.10 SWITCHBOX+ Will you please note that the Specification of Production Inspection and Test of the above, sent under cover of our… | ||
| scan0020 | Modification of the S.S. Chassis switchbox. | ||
| View original record | x7730 TO RMU C. EFC. BY/RD5/ML.31.1.29. S.S. CHASSIS - SWITCHBOX - SEC:8160. Now that the Green Lamp Unit is not to be used on the production cars we are modifying the standard switchbox to give M & B… | ||
| scan0021 | The specifications and differences between various switchboxes for Phantom models. | ||
| View original record | X7730 2.2.29. SWITCHBOXES X8730 Standard Phantom. This has switch positions "off", B, M.B.&C., M.&C. and is arranged to break the armature circuit somewhat later than the field circuit in passing from… | ||
| scan0022 | The specifications and modifications of the Final S.S. Standard switchbox. | ||
| View original record | -2- Contd. Final S.S. Standard. This has switch positions "off", M & B., M B & C, M & C. It is a still further modification of the Phantom experimental switchbox which has magneto at every position of… | ||
| scan0023 | Results of comparative life tests for switchbox and cut-out contacts. | ||
| View original record | SP X7730 To R. from EFC. c. to Sg. E. BY. WGF. PN. EFC1/B28.2.29. SWITCHBOX AND CUT-OUT CONTACT LIFE TESTS. We have now completed a satisfactory series of four comparative tests of switchbox and… | ||
| scan0024 | Switchbox life tests for a 20 HP unit, detailing failure modes and operations count. | ||
| View original record | X5730. A.D.28. February 23rd.1929. SWITCHBOX LIFE TESTS. A 20 h.p.switchbox has now been tested out for contact life under each of the four arrangements described in report A.D.8. The switchbox was… | ||
| scan0025 | Test report page detailing failure modes of an electrical cut-out, comparing 'Armature break first' and 'Field break first' scenarios. | ||
| View original record | Contd. -2- (2) Armature break first. Failed after 16843 operations. No spark at cut-out on opening. Points not badly burnt. Small groove burnt in under-side of blade. Also slight groove in top side.… | ||
| scan0026 | Continuation page of a report discussing variations in setting up a switch for testing. | ||
| View original record | Contd. -3- good deal for small variations in setting up the switch afresh for each test. Contacts tested herewith. F.J.A. | ||
| scan0027 | Chart detailing switchbox arrangements for various vehicle models. | ||
| View original record | SWITCHBOX ARRANGEMENTS. X2730 3/29 | General Diagram | 20 H.P. Standard | 20 H.P. India or auto switch | Phantom. Standard. | Phantom. Expl. | 40/50 H.P. S.S. First. | 40/50 H.P. S.S. E.F.C. | 40/50… | ||
| scan0028 | Cover note for the Specification of Production Inspection & Test for the S.S. Switchbox for R.R. Chassis, Version 4. | ||
| View original record | X7730 To FY. from EFC. c. Mr. Brock. EFC3/T26.4.29. S.S. SWITCHBOX FOR R.R. CHASSIS Attached please find Specification of Production Inspection & Test of the above, Version 4. EFC. | ||
| scan0029 | Specification for production inspection and testing of a switchbox for the R.R. chassis. | ||
| View original record | 12.3.29. X.7721sb. SWITCHBOX FOR R.R. CHASSIS. X.7730. X.5781sb. X.5730. SPECIFICATION OF PRODUCTION INSPECTION & TEST. VERSION 4. Applicable to switchbox of the S.S. standard type. (1) Inspect the… | ||
| scan0030 | Set of electrical testing procedures for a switch or distribution box. | ||
| View original record | -2- Contd. (a) First connect terminal No.6 to the positive of a 12 volt battery, and connect one terminal of a 12 volt lamp (preferably a large c.p. O.M.F. lamp taking 4 amperes) to the negative end… | ||
| scan0031 | Instructions for correcting interchanged magneto wires on a 23 Ex Switchbox. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.F.C. Order No.: AD35 Customer's No.: X7730 23 Ex Switchbox Connections The magneto wires on the switchbox were found… | ||
| scan0032 | Unsatisfactory diagrams and instructions for the S.S. Switchbox magneto switching system, which could lead to wiring errors and electric shocks. | ||
| View original record | X7720 BY. from EFC. C. BY/RD. C. BY/HEB. EFC3/D28.5.29. X.7730. S.S. SWITCHBOX. MAGNETO SWITCHING. X8791 The present diagrams and instructions for the wiring of the magneto switching system are not… | ||
| scan0033 | Confirming the possibility of receiving a minor shock from the magneto switch knob. | ||
| View original record | X 7730 By. from EFC. c. By/RD. c. By/HEB. EFC7/AD28.5.29. X.7730. S.S. SWITCHBOX. MAGNETO SWITCHING. X.8791 Further to our EFC3/D28.5.29, we have now confirmed the possibility of receiving a shock… | ||
| scan0034 | Technical memo on the arrangements of the S.S. switchbox, comparing standard, modified, and original versions. | ||
| View original record | X 7730 By. from EFC. c. By/RDs EFC2/ADS.7.29. X#### (crossed out) X4040 X 7730 X4008 X7730 S.S. SWITCHBOX. The arrangement of S.S. switchbox which finally evolved as standard after passing through… | ||
| scan0035 | Experimental auto switch and charge control systems for chassis 20-EX. | ||
| View original record | -2- contd. (as we have already indicated in connection with our request for instructions for experimental auto switch arrangements). This you will note only differs from the original S.S. arrangement… | ||
| scan0036 | Clarifying the specifications for switchboxes used with the auto charge control switch. | ||
| View original record | X7730 Ey/RD. from EFC. EFC1/AD19.9.29. X.4008. AUTO CHARGE CONTROL SWITCH AND X.7730. SWITCH BOXES FOR USE THEREWITH. X6096 We have noted that you have instructed the long distribution board… | ||
| scan0037 | Clarifying the practice of issuing instructions for different sections to the Experimental Department. | ||
| View original record | X7730 EFC. BY/RD22/N.19.9.29. Re: Your EFC1/AD.19.9.29. X4008 X7730 X6046. It is not our practice to issue instructions to the Experimental Dept. for different sections in one memo, and whilst we have… | ||
| scan0038 | Requesting to include a switchbox with extended armature contact on chassis 18-EX. | ||
| View original record | X 7730 . By. from EFC. c. By/RD. EFC5/AD20.11.29. X.7730. SWITCHBOX WITH EXTENDED ARMATURE CONTACT: We are anxious to be able to include one of these on chassis 18-EX for R. Can you please instruct… | ||
| scan0039 | The fitment of a switchbox with an extended armature contact to a 40/50 Chassis 18-EX. | ||
| View original record | X7730. EFC. BY/RD3/DM. 22.11.29. 40/50 Chassis 18-EX for R. Switch Box Section 8160. Lec.2597. We wish to put on to this chassis a type of switchbox having an extended armature contact which is… | ||
| scan0040 | The design and examination of the Phantom II switchbox, distribution board, and fuses. | ||
| View original record | To R. from EFC. c. Sg. E. c. Ey. Wor. X.7730. EFCl/AD30.11.29. X-7730. PHANTOM II SWITCHBOX, DISTRIBUTION BOARD AND FUSES. The first switchboxes made for experimental S.S. chassis were of the type… | ||
| scan0041 | The condition of a switchbox after extended use and a discussion on reconsidering its design for an experimental car. | ||
| View original record | EFCI/ADSO.11.29 contd. -2- "This switchbox has run 27,700 miles fitted with blade chamfered to give field break first. It has now been removed for disposal of the car. The field contact fingers are… | ||
| scan0042 | Recommendation to adopt the Phantom II standard switchbox and alter the fuse positions and numbering accordingly. | ||
| View original record | EFC/AD30.11.29 contd. -3- the cut-out shunt coil, now supplied from the field fuse terminal, was originally supplied from the armature fuse terminal. On the long distribution board with incorporated… | ||
| scan0043 | Instruction of a second S.S. Switchbox with extended armature contact and distribution board for an experimental chassis. | ||
| View original record | X7730. To EY. from EFC. c. Ey/RD. EFC2/AD2.12.29. X.7730. S.S. SWITCHBOX WITH EXTENDED ARMATURE CONTACT AND DISTRIBUTION BOARD TO SUIT. You have instructed one set of the above for experimental… | ||
| scan0044 | Potential for a driver to get an electric shock from the ignition switch on the Phantom II. | ||
| View original record | X7730. EFC. c. Wor c. BY. c. HS. c. C. EP2/H6.12 .29. re. PHANTOM II. - SHOCK FROM IGNITION SWITCH. X.8791 I understand it is now agreed as a standard job that the driver may get a shock in case the… | ||
| scan0045 | Cause and solutions for an electric shock from the auxiliary magneto switch on a Phantom II. | ||
| View original record | X7730 To Ry. from EFC. To EP. c. Wor. c. Hs. c. C. EFC2/AD9.12.29. X8791. X.7730. PHANTOM II. SHOCK FROM AUXILIARY MAGNETO SWITCH. Referring to EP2/H6.12.29, the circumstances of the occurrence of… | ||
| scan0046 | Two arrangements for magneto switching, considering alterations to eliminate an electric shock. | ||
| View original record | EFC2/AD9.12.29 contd. -2- switch electrically on the side of the switchbox switch remote from the magneto and nearer to earth (in so far as the three "on" positions of the switchbox are concerned)… | ||
| scan0047 | Technical proposal for modifying the reduced charge switching scheme by interconnecting it with the headlamp switch. | ||
| View original record | X7730. To E. from EFC. EFCl/ADl 8.1.30. X.7730 REDUCED CHARGE SWITCHING. X.6016 We have not yet received from you a copy of your memo to R. in which it was your intention to summarise the joint… | ||
| scan0048 | New switchbox design, focusing on the armature contact, terminal numbering, and lamp switching. | ||
| View original record | EFCL/ADL8.1.30 contd. -2- It is the question of what we call the extended armature contact, and in this respect a new design of switchbox should be like your LeC.2597. You will probably be not quite… | ||
| scan0049 | The disadvantages and proposed elimination of an auxiliary magneto switch. | ||
| View original record | EFC/AD18.1.30 contd. -3- ignition switch only with B, M & B, and M positions. One slight disadvantage in this would be the loss of the extended armature contact, but an advantage would be the… | ||
| scan0050 | Two proposals for modifying the charge switching system. | ||
| View original record | EFC. from E. c. to Sg. Hs. By. X. 6016 INCREASED CHARGE SWITCHING. X. 7730 Thank you for your memo. EFCl/AML8.1.30. Your proposal for modifying the switchbox, for the scheme using a resistance in… | ||
| scan0051 | Proposed reduced charge switching system, detailing its operation and potential issues with the cut-out shunt coil. | ||
| View original record | X7730. To E. from EFC. c. Sg. c. Ey. c. Hs. EFC1/AD30.1.30. 6016 X.7730 REDUCED CHARGE SWITCHING. Your E2/M25.1.30. X7740. X7730 If the extended armature contact is provided as recommended, then when… | ||
| scan0052 | Hand-drawn diagram illustrating four different electrical circuit configurations. | ||
| View original record | 2 2R 2 2R 2 2R 2 2 2 2R 2 2R FIG 1. FIG 2. FIG 3. FIG 4. | ||
| scan0053 | Proposed electrical wiring modifications involving a switchbox, distribution box, and field resistance. | ||
| View original record | -2- EFC1/ADSO.1.30 contd. the distribution box. Figure 1. shews the present straight through connection of switchbox terminal 2. to distribution box terminal 2. Figure 2. shews the insertion of a… | ||
| scan0054 | Note on the convention for indicating windings and a reference to a scheme for utilising higher output generators. | ||
| View original record | EFC1/AD30.1.30 contd. -3- convention of indicating inductive windings by spirals, and purely resistive windings or resistances by straight zigzags. You will see by my note EFC7/AD28.1.30 addressed to… | ||
| scan0055 | Instruction to remove a green lamp unit for a 10,000-mile test and retain the switchbox for standardisation. | ||
| View original record | X 7730 .. RHC. from EFC. c. Hs/GWH. EFC6/AD7.2.30. X.4040 . X.7730. 10,000 MILE TEST CHASSIS 14-G4. Will you please arrange to have the green lamp switch and green lamp unit removed from this chassis… | ||
| scan0056 | Proposals for reduced charge switching and the implications for the auxiliary magneto switch. | ||
| View original record | X 7730. To E. from EFC. EFC4/AM.8.2.30. 6016 X.7730. REDUCED CHARGE SWITCHING. X 7730 X 8791 In our EFC1/AM8.1.30 we gave expression to various proposals, which proposals were mainly subsequently… | ||
| scan0057 | Switchbox and distribution box for the 10,000-mile chassis 23-EX. | ||
| View original record | X7730 RHC. from EFC. c. Hs/AJL. EFC7/AD25.2.30. X.7730. SWITCHBOX AND DISTRIBUTION BOX. FOR 10,000 MILE CHASSIS 23-EX. Will you please arrange for the switchbox on this chassis to be one of a type… | ||
| scan0058 | The modification of a switchbox for a 40-50 HP chassis, including lists of new and standard parts required. | ||
| View original record | RHC. EFC. X 7730 BY/RD1/W.17-3-30. Re :- 40-50 H.P. Chassis No. 23-EX. Switchbox Section 8160. 'D' Scheme 315. X.6016 X 7730 Will you please put in hand one Switchbox having an extended armature… | ||
| scan0059 | The switchbox and cutout arrangement for a dynamo charging circuit. | ||
| View original record | X7730 AD. 70 11.11.30. X.5730 X.7730. SWITCHBOX AND CUTOUT ARRANGEMENT X.7740. The standard arrangement we have adopted for the charging switch operation and cutout shunt coil connection is the third… | ||
| scan0060 | Analysis of different electrical cutout and switchbox arrangements to mitigate sparking and component failure. | ||
| View original record | -2- may in time burn out the cutout shunt coil. It occurs momentarily when switching off charge, with the above arrangement, and the switch not only breaks the normal armature current but a moderate… | ||
| scan0061 | Experimental record sheet for a switchbox with an armature contact in the ignition position. | ||
| View original record | X7730. ELECTRICAL EXPERIMENTAL RECORD SHEET Rate:- X 7730 Switchbox with armature contact in ignition position Date on. | Location. | Date off. | REMARKS. | Miles reading Start. | Miles reading… | ||
| scan0062 | Instruction sheet regarding a switchbox with an armature contact, its condition and replacement. | ||
| View original record | RR 228 (150 BKS.) (DB 461-8-12-24) NP 3C6975 X. 7730. ROLLS-ROYCE LTD. INSTRUCTIONS. To: F.E.C Order No. AD 74 Customer's No. X 7730 Switchbox with Armature Contact in Ignition Position, from 18 EX… | ||
| scan0063 | Cross-reference note for further information on the 40/50 switchbox. | ||
| View original record | X.7730 31.12.30. For further matter relating to 40/50 switchbox (general) see X.6070. | ||
| scan0064 | Reference note for previous correspondence concerning the 40/50 Distribution Board. | ||
| View original record | X.8740. For previous correspondence see X.3555 - 40/50 Distribution Board. EFC. | ||
| scan0065 | Testing mileage of 40 S.W.G. field fuses for Goshawk & E.A.C. electrical systems. | ||
| View original record | X 9740 To EP. from EFC. EFC1/T5.12.23. 4410 (struck through) X.4358 - FUSES FOR GOSHAWK & E.A.C. ELECTRICAL SYSTEMS With reference to your query re 40 S.W.G. field fuse, we attach copies of… | ||
| scan0066 | Fusing for the electrical circuits of the silent starter gear. | ||
| View original record | X7740 SECRET. To BY/RD. from EFC. E.A.C. EFC5/T3.7.34. X.9650 - EAC: SILENT STARTER GEAR. X7740 Answering your query with reference to the desirability of a fuse for the electrical circuits of the… | ||
| scan0067 | Accompanying a blueprint for a Distribution Board and Cut-Out, detailing differences from the standard 20 HP type. | ||
| View original record | X7740 To RHC. C. EFC. BY/RD3/114.9.24. X.9740 - DISTRIBUTION BOARD AND CUT-OUT - E.A.C.11. Please receive herewith 1 Blueprint of:- D.70730 - Distribution Board Cover. D.70731 - Terminal Stud. D.70806… | ||
| scan0068 | Instructions regarding the testing and availability of an EAC Distribution Box and Cut-out. | ||
| View original record | RR 238 (150 BKS.) (SH57.29-6-20.) MP 224358 X9740 ROLLS-ROYCE LTD. INSTRUCTIONS. To: EFC Order No.: AC. 34 Customer's No.: X.8740. Date: 6 Jan. 1925 EAC Distribution Box and Cut-out. An RR… | ||
| scan0069 | Inspection and adjustment report for an EAC Distribution Board, including operating figures. | ||
| View original record | RR 238 (150 BKS.) (SH57.29-5-20.) MP 224358 ROLLS-ROYCE, LTD. INSTRUCTIONS. To: EFC Order No. DC 39 Customer's No. X EAC Distribution Board. No 1169 of the above has been inspected and adjusted to the… | ||
| scan0070 | Confirming that a distribution board and cutout has passed testing and is ready for use on the chassis. | ||
| View original record | X7740 To RHC. from EFC. EFCl/Y6.1.25. X.8740. EAC. RR. TYPE DIST.BOARD & CUTOUT. Herewith we hand back to you one of the above distribution boxes which you handed to us for test. This is O.K. and now… | ||
| scan0071 | Cover letter for the specification of Production Inspection & Test of an EAC distribution board and cutout. | ||
| View original record | To BY from EFC. c. SFX/Mr. Brock. V7740 EFC5/T23.1.25. X. 8740. DISTRIBUTION BOARD & CUTOUT. X.8781db. Herewith please receive copy of Specification of Production Inspection & Test of the EAC.… | ||
| scan0072 | Specification for the production inspection, adjustment, and testing of a distribution board and cutout. | ||
| View original record | X7740 21.1.25. X.8781db. R.R. EAC. DISTRIBUTION BOARD & CUTOUT. X.8740. VERSION 1. SPECIFICATION OF PRODUCTION INSPECTION, ADJUSTMENT & TEST. (1) The cover of the distribution box shall be removed and… | ||
| scan0073 | Testing procedures for a dynamo, detailing voltage, amperage, and cutout contact operations. | ||
| View original record | -2- Contd. be shown by a movement of the needle of ammeter A. The readings of the voltmeter V and ammeter B, immediately preceding this instant, shall be noted. The former shall lie between the limits… | ||
| scan0074 | Wiring diagram for the connections for an EAC distribution board and cutout test. | ||
| View original record | CONNECTIONS FOR R.R. EAC. DISTRIBUTION BOARD & CUTOUT TEST. + D+ F+ D- V B A | ||
| scan0075 | Dynamo fuse information and cutout specifications. | ||
| View original record | X 7/40 -12- Contd. Instruction Book Matter 23.2.25 The dynamo cannot be excited and/or connected to the system if this fuse is removed or melted. Special care should be taken that all fuses are… | ||
| scan0076 | Troubleshooting sticking cutout contact points and requesting inspections and corrections. | ||
| View original record | To RHC. To Hs/GWH. from EFC. X.8740. RE CUTOUT CONTACT POINTS. The trouble with the contact points (causing them to stick together) on 46-PK, appears to be that they did not initially meet together… | ||
| scan0077 | Requesting the replacement of a faulty distribution box on car 98-NK. | ||
| View original record | X7740 To RHC. from EFC. EFC3/T8.4.25. RE DISTRIBUTION BOX ON 98-NK. We notice that the contact points on 98-NK are very bad and think the distribution box should be changed. Perhaps you would kindly… | ||
| scan0078 | Issue with the rubbing action of cutout contact points in a distribution box. | ||
| View original record | To BY from EFC. c. BY/RD. c. Mr. Brock. c. RHC. X 7740 EFC1/T16.4.25. X.8740. DISTRIBUTION BOX - CUTOUT CONTACT POINTS. On the cutout it is intended that there should be a rubbing action at the points… | ||
| scan0079 | Requesting inspection and alteration of cutout contact points on various experimental chassis. | ||
| View original record | To RHC. from EFC. X7740 EFC3/T14.5.25. X.7740. EAC. CUTOUT CONTACT POINTS. With reference to our EFC2/T15.4.25, I should be glad if you would have all the cutout contact points on our various… | ||
| scan0080 | Additional note on the production inspection and test specification for the distribution board and cutout, applicable to the 20 HP and EAC chassis. | ||
| View original record | To BY from EFC. c. SFT/Mr. Brock. c. Test Dept. By IRP X9740 EFC2/T14.5.25. X.8781db. SPECIFICATION OF PRODUCTION INSPECTION & TEST OF RR. DISTRIBUTION BOARD & CUTOUT. X3604db X9740 X26410 Herewith… | ||
| scan0081 | Additional note on the production inspection and testing specification for the distribution board and cutout, focusing on contact point alignment. | ||
| View original record | X7740. 14.5.25. X.8781db. RR. DISTRIBUTION BOARD & CUTOUT. X.8740. SPECIFICATION OF PRODUCTION INSPECTION & TEST. ADDITIONAL NOTE. Referring to (1) (a), and in particular to the inspection of the… | ||
| scan0082 | Chassis 93-NK after 15,447 miles in France, focusing on electrical fittings. | ||
| View original record | Y7740 Extract from GWH2/Crn20.5.25. REPORT ON CHASSIS 93-NK AFTER 15,447 MILES (IN FRANCE) ------------------------------------------------- Electrical Fittings. X7740 X8560 These generally are O.K.… | ||
| scan0083 | Repeated failure of an emergency main fuse on an EAC trials car due to an electrical earth. | ||
| View original record | W/S. X7740 EFC4/T21.5.25. To Bk. from EFC. FAILURE OF EMERGENCY MAIN FUSE ON EAC. TRIALS CAR. We are informed that one of your trials cars is suffering from repeated failure of the above fuse. This… | ||
| scan0084 | Instructing a design alteration for the EAC Distribution Box contact points. | ||
| View original record | To PY/RD. from EFC. X7740 EFC1/T25.5.25. X.7740. EAC. DISTRIBUTION BOX. Herewith copy of our EFC2/T14.5.25. We think you might alter your drawings and give a definite instruction to the effect that… | ||
| scan0085 | Problem with an overly strong spring in a distribution box cut-out and proposing spring steel as an alternative material. | ||
| View original record | X7740 To EFC. BY/RD1/ML.27.5.25. 1 X.7740 - DISTRIBUTION BOX. X 4105 On further considering the rubbing or rolling action required on the cut-out contacts, I have discovered that the standard cut-out… | ||
| scan0086 | Replacement and allocation of three non-standard cutout contact points for specific cars. | ||
| View original record | 7740 To Mr. Warwick. EFC1/T29.5.25. X.4410 I am anxious for these three cutout contact points to replace the present ones on three of the cars.to-day. They only differ from standard in having the… | ||
| scan0087 | The experimental reduction of cutout contact breaker spring necks on various chassis. | ||
| View original record | X7740 EFC/T29.5.25. NECKS OF CUTOUT CONTACT BREAKER SPRINGS EXPERIMENTALLY REDUCED ON VARIOUS CHASSIS. X4105 X7740 .125" 98-NK. .137" 6-GII. .150" 44PK or 46-PK. EFC. | ||
| scan0088 | Proposing a design change to make the supporting column of the fixed cutout contact point more rigid. | ||
| View original record | V7740 To BY. from EFC. c. BY/RD. EFC3/T3.6.25. RE CUTOUT CONTACT POINTS. Judging from the results of observations on the three cutouts which we have fitted with narrowed down springs carrying the… | ||
| scan0089 | Intended rubbing action of the spring in a distribution box cutout. | ||
| View original record | X7740 To EY/RD. from EFC. c. Mr. Brock. EFC5/T3.6.25. X.8740. DISTRIBUTION BOX. X4105C Referring to Mr. Brock's note of the 26th ult. and your EY/RD1/ML27.5.25, first of all we want a definite rubbing… | ||
| scan0090 | Observations on spring arrangements and the necessity for a rigid support for the fixed contact. | ||
| View original record | Contd. -2- EFC5/T3.6.25. observations so far seem to show that the best arrangement is the rigid plate on the top of the spring, together with a rigid support. In any case we now definitely assert… | ||
| scan0091 | Suggestions by 'RG' for the improvement of the electrical system. | ||
| View original record | To EY. from EFC. c. BY/RD. X7760 EFC4/T11.8.25. X8760 X8670 X.8780. EAC.2. ELECTRICAL EQUIPMENT. Would you please consider the following points for the improvement of the electrical system. suggested… | ||
| scan0092 | Inspection report on a distribution box with a cracked cover, dust ingress and worn contact points. | ||
| View original record | RR 238 (150 BKS.) (BH57.29-6-20.) MP 224358 X.774D ROLLS-ROYCE LTD. INSTRUCTIONS. To EFC Order No. AC.55. Customer's No. X.8740. 14. Aug. 1925. Distribution Box on 93.NK This box was inspected before… | ||
| scan0093 | Modifications to 'V' Series electrical equipment, specifically cones and a dynamo commutator end cover. | ||
| View original record | X7740 EFC. c. BY/RD. By2/Hl4.8.25. EAC.II "V" SERIES ELECTRICAL EQUIPMENT. X.8780. X.8740. X.8670. Referring to EFC4/T.118.25 the position at the moment is, in regard to the points raised by Rg.- 1.… | ||
| scan0094 | Modification of two EAC distribution boards to a new experimental standard for dynamo tests. | ||
| View original record | X7740 To RHC. from EFC. EFCl/T8.2.26. X.7740 - EAC. DISTRIBUTION BOX We send you herewith two distribution boards one of which can readily be made up complete to our new experimental standard. At… | ||
| scan0095 | Reverting to a modified shutter control design for the 'X' Series and altering dashboard components. | ||
| View original record | +7740 To BY. from DA. c. to Hs. DA4/M14.7.25. 'X' SERIES - RADIATOR SHUTTER CONTROL ETC. X.8690 X.8250 X.8240 It is very probable that we shall want to revert to the shutter control shewn on… | ||
| scan0096 | Instructing a change to the Phantom's cutout mechanism to match the simpler 20 HP design. | ||
| View original record | X.7740 To Hs. DA (From R). c. to BJ. Wor. c. to BY. R9/MMO.6.26. EAC. 8 CUTOUT. I noticed on this car that we have retained the toggle spring arrangement for the cutout. As we have managed to avoid… | ||
| scan0097 | The performance of modified distribution box thumbscrews with milled beads. | ||
| View original record | X7740 EFC. AC.77. 17th July, 1926. MODIFIED DISTRIBUTION BOX THUMBSCREWS. A set of these screws(having milled beads) was fitted to 12-EX on 22.5.26. The car has run 2609 miles since then up to July… | ||
| scan0098 | Typed memo regarding an arrangement for an improved scheme to be submitted to keep a job moving. | ||
| View original record | 19.7.26. We saw BY/C re this and arranged that D.O. would, after holiday, get out an improved scheme to submit to R. thus to keep job moving. Matter to be brought up again in a month's time. EFC. | ||
| scan0099 | Specification for production inspection, adjustment, and testing of the distribution board and cutout. | ||
| View original record | X7740 19.10.26. X.8781db. R.R. DISTRIBUTION BOARD & CUTOUT. X.7740. X.5781db. X.5740. SPECIFICATION OF PRODUCTION INSPECTION, ADJUSTMENT & TEST. (1) The cover of the distribution box shall be removed… | ||
| scan0100 | Test procedures for a dynamo cutout, detailing voltage, current, and resistance specifications. | ||
| View original record | -2- until the cutout is just operated. The instant of operation will be shewn by a movement of the needle of ammeter A. The readings of the voltmeter V and ammeter B, immediately preceding this… | ||
| scan0101 | Wiring diagram for a 40/50 distribution board and cutout test. | ||
| View original record | CONNECTIONS FOR RR. 40/50 DISTRIBUTION BOARD & CUTOUT TEST. + D+ F+ D- V B A | ||
| scan0102 | Standardisation document for securing a distribution box cover with thumb screws. | ||
| View original record | RR 755 (10H) (DB130 12-9-24) MS 301225 X7740 COMPLETED 20.10.26 STANDARDISATION of CHASSIS PARTS. Date 22.9.26 Description of Parts: DISTRIBUTION BOX COVER SECURED IN POSITION BY ROUND THUMB SCREWS.… | ||
| scan0103 | Comparison of windings for Derby & Springfield cutouts. | ||
| View original record | X7740 5.10.27. DERBY & SPRINGFIELD CUTOUTS. X3948 Comparison of windings. Shunt amp x turns; Derby 420.. Springfield 280. Series amps/sq." section of wire:- Derby 3000,Springfield 3750. Series winding… | ||
| scan0104 | Instruction for an experimental electrical alteration to the distribution box on chassis 11-G3 and 14-EX. | ||
| View original record | X9740 To RHC. from EFC. c. BY/RD. c. Hs/AIL. EFC1/T8.10.27. On chassis 11-G3 and 14-EX we require a comparatively simple experimental electrical connection alteration to the distribution box. The end… | ||
| scan0105 | Modified experimental connection for the shunt coil on the distribution box. | ||
| View original record | To R. from EFC. c. BJ. E. c. Wor. By. X7740 EFC2/T8.10.27. X8780 MODIFIED EXPERIMENTAL CONNECTION OF SHUNT COIL ON DISTRIBUTION BOX. One of the points that has occurred to us recently in connection… | ||
| scan0106 | Page discussing a change of connection on a chassis and its effect on the field fuse safety margin. | ||
| View original record | -2- Contd. of this slight change of connection on two chassis because there is the possibility, though not probability, that it may just affect the safety margin of the field fuse. for normal running.… | ||
| scan0107 | Forwarding a self-explanatory note from Mr. Allen regarding chassis distribution board wires. | ||
| View original record | X7740 To BY/RD. from EFC. EFC3/T23.1.28. CHASSIS DISTRIBUTION BOARD WIRES. The attached is a copy of a note I have received from Mr. Allen which is self-explanatory. Perhaps you will consider if… | ||
| scan0108 | Examination of wires 6 and 8 on the chassis distribution board for potential failure due to cramped spacing and handling by coachbuilders. | ||
| View original record | EFC. X7740. 17.1.28. CHASSIS DIST. BOARD WIRES 6 AND 8. We have examined the wires on some 20 HP. and Phantom chassis in the Test Dept. The wires are rather cramped for room where they come up to the… | ||
| scan0109 | The distribution board and cutout for a 15-EX Phantom chassis after 9000 miles. | ||
| View original record | X.9740. Extract from Hs/GWHl/LG17.3.28 REPORT ON 15-EX PHANTOM CHASSIS WITH SPORTS BODY (9000 MILES) DISTRIBUTION BOARD AND CUTOUT. We have had no trouble with the distribution board orfittings. The… | ||
| scan0110 | Report from France regarding an electrical cutout failure on chassis 14.EX, with a handwritten follow-up asking for more details. | ||
| View original record | X.7740 To EX. From EFC. c. BY/RD. EFC/T12.4.28. In a report from France on the running of chassis 14.EX, the following paragraph occurs :- "We had a failure of electrical cutout, due to a stud working… | ||
| scan0111 | Covering memo for a set of notes regarding the burning of cutout and dynamo charging switch contacts. | ||
| View original record | X7740 To HY. from EFC. c. HY/RD. c. Mr. Brock. EFC5/T16.5.28. X8730 Please find attached copy of some Notes entitled "Burning of cutout contacts and dynamo charging switch contacts, as affected by… | ||
| scan0112 | Analysis of the burning of cutout and dynamo switch contacts based on different circuit configurations and switching sequences. | ||
| View original record | EFC4/T16.5.28. BURNING OF CUTOUT CONTACTS AND DYNAMO CHARGING SWITCH CONTACTS AS AFFECTED BY CONNECTION OF CUTOUT SHUNT COIL AND ORDER OF BREAKING DYNAMO CIRCUIT (i.e. DYNAMO ARMATURE OR FIELD FIRST).… | ||
| scan0113 | Continuation of a report analyzing different electrical cutout and charging switch configurations to minimize sparking. | ||
| View original record | -2- Contd. connection, there is a slightly stronger flash than normal because the potential of the field brush is more negative than in normal running. After that the cutout points separate with no… | ||
| scan0114 | Optimal wiring connection for a shunt coil in a distribution box based on experimental results. | ||
| View original record | -3- Contd. We have also another and independent reason for connecting the positive end of the shunt coil to distribution box terminal C instead of B. This we have mentioned to Mr. Royce and we have… | ||
| scan0115 | Cover note for attached notes regarding the burning of cutout and dynamo charging switch contacts. | ||
| View original record | X8742 To R. from EFC. c.c. RJ. PN. EFC5/T17.5.28. X8730 Please find attached copy of some Notes we have written, entitled - "Burning of cutout contacts and dynamo charging switch contacts, as affected… | ||
| scan0116 | Electrical experimental record sheet for a Cut-Out Shunt connected to Terminal C. | ||
| View original record | X7740 ELECTRICAL EXPERIMENTAL RECORD SHEETS. Cut-Out Shunt connected to Terminal C X. No:- | Date on. | Location. | Date off. | REMARKS. | Miles reading start. | Miles reading finish. | Miles covered.… | ||
| scan0117 | Requesting a drawing of a distribution board, which is related to a battery charge indicator switch. | ||
| View original record | x7740 BY. from E. E1/M29.6.28. c. to BJ. Hs. EFC. X.4040. BATTERY CHARGE INDICATOR SWITCH, X.7740. We send herewith LeCs. 2567/8. dealing with the above. We should be glad if you would make a drawing… | ||
| scan0118 | Revised and coloured Phantom wiring diagram for inclusion in the instruction book. | ||
| View original record | FROM E. C. to BJ. HS. EFG. PHANTOM TECHNICAL WIRING DIAGRAM. We send herewith LeC. 2570. shewing a revision to the above. The diagram has been re-arranged to segregate the various circuits, and these… | ||
| scan0119 | Correspondence regarding a blueprint for a battery charge indicator switch and layout issues on the instrument board. | ||
| View original record | E. (W.W.) c. BJ. c. Hs. X7740 By/Cghl/Kll.7.28. X.4040. BATTERY CHARGE INDICATOR SWITCH. X.7740. As requested in your E1/M29.6.28, we send you herewith blueprint of a drawing we have prepared showing… | ||
| scan0120 | Modifications to a Phantom wiring diagram, specifically the green light connection. | ||
| View original record | EFC. FROM E. Copy to DC. DY. HS. E1/M16.7.28. PHANTOM TECHNICAL WIRING DIAGRAM AND GREEN LIGHT CONNECTION. With regard to the point of connection of the green lamp mentioned in your memo. EFC2/T6728.,… | ||
| scan0121 | Corrections to a diagram for an accumulator switch and green light scheme, including fuse placement. | ||
| View original record | X4040 EFC. from R. c. BJ. Hs. R4/M20.7.28. ACCUMULATOR SWITCH, & GREEN LIGHT SCHEME. X.7740. X.7560. X.4040. E. is correcting his diagram LeC.2570. As far as we can see the best place for taking the… | ||
| scan0122 | Modifications to a distribution board fitted with a green lamp switch. | ||
| View original record | To BY. from E. c. BJ. Hs. EFC. X7740 E1/M26.7.28. X.7740 DISTRIBUTION BOARD FITTED WITH GREEN LAMP SWITCH. X.4040 We send herewith LeC.2583. giving particulars of the modifications that should be made… | ||
| scan0123 | Alterations to the Phantom Green Light Scheme wiring. | ||
| View original record | BY/CGH. from E. c. BJ. EFC. X7740 E1/M1.9.28. PHANTOM GREEN LIGHT SCHEME. X4040. Referring to the above, R. is agreeable that the green lamp itself should be fed from a separate source as suggested by… | ||
| scan0124 | Proposing to delay a wiring change for the cutout connection until a new distribution board is ready. | ||
| View original record | Y.7740 To EFC. BY/RD4/ML6.9.28. CUTOUT CONNECTION. I have received a standardisation sheet relative to connecting the cutout coils to terminal C instead of B, without producing any scrap and I think… | ||
| scan0125 | Revised Phantom wiring diagram, requesting old prints be scrapped. | ||
| View original record | RECEIVED 17 SE To EFC. BY/AHD BY/AHD X7740 BY/RD4/ML15.9.28. PHANTOM TECHNICAL WIRING DIAGRAM. We have revised LeC.2570 to make it right with all our latest connections, will you please scrap your old… | ||
| scan0126 | Minor alterations and a list of blueprints for the S.S. Chassis Distribution Board, Cutout, and Green Lamp Switch. | ||
| View original record | X7740 To RHC C. EFC. BY/RD2/ML.15.9.28. S.S. CHASSIS - DISTRIBUTION BOARD, CUTOUT AND GREEN LAMP SWITCH - SEC:S170. LeC.2567. In our memo BY/RD1/ML.15.8.28 we issued to you details of the Green Lamp… | ||
| scan0127 | Revised diagram for a distribution board fitted with a green lamp. | ||
| View original record | X7740 BY. from E. c. BJ. EFC. Hs. E1/M15.9.28. DISTRIBUTION BOARD FITTED WITH GREEN LAMP. X. 7740 We send you herewith LeC.2594 shewing the above revised for separate source of current for the green… | ||
| scan0128 | Notification to hold instructions regarding the S.S. Chassis distribution board, cutout, and green lamp switch. | ||
| View original record | C. EFC. X7740 BY/RD6/ML18.9.28. S.S CHASSIS - DISTRIBUTION BOARD, CUTOUT & GREEN LAMP SWITCH. We have today received LeC.2594 revising this job and therefore our instructions BY/RD2/ML15.9.28 should… | ||
| scan0129 | Technical memorandum detailing the design and testing of electrical circuits, fuses, and a switchbox/ignition system. | ||
| View original record | EFC. HS. ) FROM R. BY. ) AND E. Copy to BJ. WOR. Y7780 R1/M18.9.28. EAC.10. ELECTRICAL CIRCUITS. The battery has no fuse for the motor and main switch circuit. If one was provided there would be… | ||
| scan0130 | Fusing current of main and distributing fuses and the specifications for ammeters. | ||
| View original record | R. from EFC. c. E. BJ. BY. X7740 EFC3/T19.9.28. X2515 X8780 Referring to your Rl/M18.9.28 and in particular to the fusing current of main and distributing fuses, the fusing current of 15 amperes for… | ||
| scan0131 | New, more robust electrical wiring circuit with a separate charging switch. | ||
| View original record | EFO. ) FROM R. & E. HS. ) DY. ) Copy to BL WOR Y7740 R2/M19.9.28. EAC.10. ELECTRICAL WIRING. We have decided on another arrangement of circuits. It is simpler, more easily understood, and more robust.… | ||
| scan0132 | Proposed arrangement for electrical wiring and switching. | ||
| View original record | X7740 To R. from EFC. c. BJ. E. c. Bv. Wor. EFC1/T21.9.28. EAC.10 ELECTRICAL WIRING. X.8730 X7740 I have carefully read your R2/M19.9.28. We can see the advantages of the proposed arrangement but we… | ||
| scan0133 | Adding a charging switch to the ignition system to control battery charging during testing. | ||
| View original record | Contd. -2- Alternatively it might be considered desirable to add charging switch contacts to the first or B position so that charge would only be definitely off in the off position of that (ignition)… | ||
| scan0134 | Requesting experimental demonstration of electrical faults and reporting a spotlight earthing issue. | ||
| View original record | EFC. } from R. Hs. } BY. } X8740 R1/M21.9.28. CAR ELECTRICAL EQUIPMENT. X.8780. X.8740. Have you experimentally demonstrated all sorts of faults on the electrical system of our cars, such as… | ||
| scan0135 | Revisions to the electrical installation for chassis EAC.10, including wiring diagrams and component modifications. | ||
| View original record | X7740 BY. from E. c. BJ. Hs. EFC. E1/M22.9.28. EAC.10 ELECTRICAL INSTALLATION. X.7780. X.7740. We understand that R. is rather of the opinion that the green light may not be adopted until chassis… | ||
| scan0136 | New scheme for an electrical switchbox to avoid destructive sparking. | ||
| View original record | EFC. )from E. Hs.EY) c. to BJ. Wor. XTT 40 RL/M25.9.28. EAC.10 ELECTRICAL SWITCHES. X.7736/40. Your remarks in EFC/21.9.28 pointing out that if we break the exciting circuit of the dynamo before… | ||
| scan0137 | Minor criticisms and suggestions for an electrical installation diagram. | ||
| View original record | To E. from EFCt c.c. BJ. BY. X7740 EFC2/T25.9.28. EAC.10. ELECTRICAL INSTALLATION. Lec.2595. EL/M22.9.28. X 7780 There are one or two rather minor criticisms which we think it just worth while to make… | ||
| scan0138 | Correct way to indicate current direction on electrical diagrams. | ||
| View original record | -2- Contd. preferable to leave out arrow heads on the main battery charge and discharge wire from battery, via main fuse and ammeter, to distribution board so that the only arrow heads on the diagram… | ||
| scan0139 | Car electrical equipment, focusing on the testing of earths and specifications for various fuses. | ||
| View original record | To R. from EFC. c.c. RJ. X7240 EFC3/T29.9.28. CAR ELECTRICAL EQUIPMENT. X8780 X7240 Reference your EL/M21.9.28, we have not made a succession of earths on the electrical system deliberately and… | ||
| scan0140 | The limitations of fuses and fuse holders when using higher output dynamos. | ||
| View original record | -2- Contd. For instance, it is possible for the dynamo to be run continually at a moderately high voltage (about double normal) without the field fuse going, but if the dynamo is run to some higher… | ||
| scan0141 | Typed report page discussing fusing current, oxidising current, and proposed further tests for a higher output machine. | ||
| View original record | -3- Contd. at each heating must get progressively weaker until ultimately it goes. The normal fusing current is, as mentioned recently, about 28 amperes, the oxidising current will be perhaps 17 or 18… | ||
| scan0142 | Redrawn EAC.10 wiring diagram blueprint and its reproduction. | ||
| View original record | X7740 EY. )From E. EFC. ) c. to RJ. Hs. E1/M3.10.28. EAC.10 WIRING DIAGRAM. X.7560. X.7740. We attach herewith a blueprint of LeC.2595. which has been redrawn to include the modified switching scheme,… | ||
| scan0143 | Request for blueprints and parts for a chassis distribution board, cutout, and green lamp switch. | ||
| View original record | x7740 C. EFC. BY/RD2/ML.6.10.28. SS. CHASSIS - DISTRIBUTION BOARD, CUTOUT AND GREEN LAMP SWITCH - SEC:S170. LoC.2594/96/98. Will you please receive herewith blueprints of the following parts detailed… | ||
| scan0144 | The withdrawal of a standardisation sheet for an electrical connection on chassis parts. | ||
| View original record | To Hs from G/Rb. X7740 G/Rb.3/N/139A/BJ.17.10.28. Standardisation of Chassis Parts. Re: attached Standardisation Sheet X.No.7740, Electrical connection of positive end of cut-out shunt coil to Dynamo… | ||
| scan0145 | Continuation page of a parts list, including drawing numbers, quantities, and related instructions. | ||
| View original record | (2). BY/RD2/ML6.10.28. Cont'd. D.71826 - Fuse Contact. 12 off. D.71827 - Protecting Plate for Fuse Wire. 12 " D.71828 - Connecting Plate. 14 " D.71829 - Clip for Fuse Holder. 13 " D.71830 - Stop for… | ||
| scan0146 | Revisions required for an SS wiring diagram, including a missing switch and headlamp type clarification. | ||
| View original record | E. c. Du c. Hs. X7740 BY/Cgh8/G.6.10.28. SS. WIRING DIAGRAM. ----------------------- X7560 X7730 With reference to E1/MS.10.28. and print of LeC. 2595 showing technical wiring diagram, we have shown… | ||
| scan0147 | Standardisation of the electrical connection of the cutout shunt coil to the dynamo terminal. | ||
| View original record | RR 755 REVISED (10H) (DE.649 9-12-26) BM. 2/1187. STANDARDISATION of CHASSIS PARTS. Description of Parts. ELECTRICAL CONNECTION OF POSITIVE END OF CUTOUT SHUNT COIL TO DYNAMO TERMINAL C. INSTEAD OF B.… | ||
| scan0148 | Use of different wire strands and fuse ratings for main and accessory electrical distribution boards. | ||
| View original record | To E. from EFC. c. BY c. BY/RD. SS ELECTRICAL SYSTEM. Referring to your LeC's 2595/6/8 and the question of fusing, it has been noted that you have indicated two strands of fine wire for the main… | ||
| scan0149 | Technical memo discussing the correct wiring and fusing for high and low current accessories, such as cigar lighters. | ||
| View original record | To E. from EFC. c. EY. BY/RD. X7740 EFC6/T2.11.28. SS. ELECTRICAL SYSTEM. X7741 ----------------------- Further to our EFC2/T2.11.28, it is now pointed out that some accessories, e.g. a cigar lighter,… | ||
| scan0150 | Use of single and twisted strand fuse wires for an electrical system, including considerations for a cigar lighter. | ||
| View original record | EFC. from E. c. to BJ. BY. Hs. Ey/CGH. X7740 E3/M15.11.28. "SS" ELECTRICAL SYSTEM. X.7780 X.2515. X.7740 Referring to your memos. EFC2/A/6/T21123, the two strands of fuse wire you mention are intended… | ||
| scan0151 | Observations on the fusing amperage of various gauges of single and double wire fuses for distribution boards. | ||
| View original record | To E. from EFC. V. BY. BY/RD. X7740 EFC3/T16.11.28. DISTRIBUTION BOARD. X7740/1 Further to our EFC2/T2.11.28, with reference to double and single wire fuses for the main and accessory distribution… | ||
| scan0152 | Recommendation on sizing conductor wires for accessories based on the fuse rating to instruct coachbuilders. | ||
| View original record | X7740 BY. from EFC. EFC2/T22.11.28. CONDUCTOR WIRES TO ACCESSORIES X7740/1 Referring to my EFC2 & 6/T2.11.28 (O to E) and to E3/M15.11.28 last para., we suggest that we should take some steps to… | ||
| scan0153 | Deprecating a change to the EAC.10 distribution board's main battery fuse, citing it as dangerous. | ||
| View original record | X7740 To R. from EFC. c. E. BJ. EY. FILED EFC3/T30.11.28. EAC.10 DISTRIBUTION BOARD On the new EAC.10 distribution board the main battery or emergency fuse has been altered from the type with the… | ||
| scan0154 | Continued discussion on fuse arrangements, capacity, and the dangers of removing fuses while the engine is running. | ||
| View original record | -2- Contd. a distribution fuse holder can be put in the main fuse clips in which case there is then a fuse of only 30 amperes capacity. We consider that in making this change we have given an… | ||
| scan0155 | Instruction sheet detailing tests and settings for a distribution board on chassis S.S.1. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) NP 3C6975 X 7740 ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.E.C. Order No.: A.D. 18 Customer's No.: X Distribution Board on Chassis S.S.1. (18 Ex) This was fitted to the… | ||
| scan0156 | Instructions detailing manganin wire specifications and voltage settings for an electrical switch. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) NP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To Order No. Customer's No. 2 ...............19 manganin, compared with 157 1/4 ft. and 49 ft respectively given on the… | ||
| scan0157 | Fault where the green lamp on the S.S. Distribution Board fails to switch off due to an overlooked circuit path. | ||
| View original record | X7740 To R. from EFC. c. BJ. BY. EFC4/T3.12.28. S.S. DISTRIBUTION BOARD GREEN LAMP SWITCH. X4060 We have arrived at a point in connection with the above that has previously been overlooked, viz. that… | ||
| scan0158 | Blueprint wiring diagram for an S.S. Distribution Board, incorporating a green lamp switch, with connections for production testing. | ||
| View original record | S.S. DISTRIBUTION BOARD INCORPORATING GREEN LAMP SWITCH CUT OUT SERIES SHUNT E/ GREEN LAMP SWITCH FRAME CONNECTED TO TERMINAL H MANGANIN COPPER 1 2 3 4 5 6 7 A B C D F G H J S N V A2 T1. T2. D- F+ D+… | ||
| scan0159 | Modifications and suggestions for a 'Green Light Scheme' unit. | ||
| View original record | EFC. from R. Hs. By c. BJ. WOF. RE GREEN LIGHT SCHEME. X.7746. X.4040 X1740 RL/M11.12.28. This unit is still to be connected to C. terminal provided we can get it to work, because we cannot find a… | ||
| scan0160 | Technical memorandum discussing the operation and testing of a green lamp switch. | ||
| View original record | To R. from EFC. c. BJ. EY. Wor. c. E. V7760 EFC4/T1.2.12.28. GREEN LAMP SWITCH. again Further to our EFC3/T1.2.12.28, it is probable that a falling back voltage of 12.0 would meet the case on account… | ||
| scan0161 | Follow-up report discussing the procedure for breaking an armature in relation to the field with an angular delay. | ||
| View original record | Contd. -2- EFC4/T12.12.28. We consider that we have sufficient evidence to recommend still breaking the armature when moving away from the charge position, but breaking it in relation to the field… | ||
| scan0162 | Wiring diagram for an S.S. Distribution Board incorporating a Green Lamp Switch. | ||
| View original record | S.S. DISTRIBUTION BOARD INCORPORATING GREEN LAMP SWITCH. To & FROM Switch Box. AMMETER. STARTER SWITCH. CUT OUT SERIES SHUNT E GREEN LAMP SWITCH. S FRAME CONNECTED TO TERMINAL H MANGANIN. N COPPER A C… | ||
| scan0163 | Complication with the S.S. Distribution Board Green Lamp Switch causing dynamo polarity reversal. | ||
| View original record | To R. from EFC. c. BJ. E. c. By. Wor. XT740 EFC2/T19.12.28. S.S. DISTRIBUTION BOARD X4040 X7740 GREEN LAMP SWITCH. Further to our EFC4/T3.12.28, EFC3/T12.12.28 EFC4/T12.12.28 and your RL/M11.12.28;… | ||
| scan0164 | Analysis of an electrical circuit issue involving a switchbox, dynamo, and lamp. | ||
| View original record | -2- Contd. broke connection with the battery after or before C. N.B. If it broke before C, the green lamp coil current would pass through the dynamo field in the right direction. From the point of… | ||
| scan0165 | Continuation of a report discussing an electrical fault involving a green lamp circuit and switchbox. | ||
| View original record | -3- Contd. high voltage exists from B to earth across the green lamp coils, which will cause the green lamp to be lighted and call for switching off thogh there is nothing to indicate that the green… | ||
| scan0166 | Modification to the S.S. electrical system, disconnecting the green lamp coil to prevent dynamo polarity reversal. | ||
| View original record | RHO. EFC. Hs BY/RD. X7740 BY10/G.20.12.28. S.S. ELECTRICAL SYSTEM. X4040 We wish to confirm that on all the six cars we will have to disconnect the electrical connection for the coil operating the… | ||
| scan0167 | Proposed accumulator charge indicator green lamp scheme with a circuit diagram. | ||
| View original record | EFC.E. ) from R. Hs. ) (Le Canadel) c. to BJ. Wor. SG. BY. C. X7740 RL/M26.12.28. X4040 ACCUMULATOR CHARGE INDICATOR GREEN LAMP SCHEME. It should be understood that this is not essentially an SS.… | ||
| scan0168 | Investigation into the green lamp scheme on car 18-EX in France, detailing the cause of a fault and the proposed solution. | ||
| View original record | X 7740 Extract from RJA1/C.28.12.28. X.7780. 18-EX IN FRANCE GREEN LAMP SCHEME. X.4040. X.7740. This was found to have the bulb burnt out and another was fitted. The operation of the device is… | ||
| scan0169 | Inspection and adjustment instructions for the distribution board on a 40/50 HP chassis, incorporating a green lamp switch. | ||
| View original record | X.7740 31.1.29. X. 7740. DISTRIBUTION BOARD FOR 40/50 H.P. CHASSIS. X.7781db INCORPORATING GREEN LAMP SWITCH. VERSION 1. Applicable to EAC.10 or S.S. Distribution Board which incorporates green lamp… | ||
| scan0170 | Continued set of instructions for checking fuse holders, fuse sizes, and testing insulation. | ||
| View original record | -2- Contd. (c) All the fuse holder clips for satisfactory gripping of the fuse holders. It should be particularly ascertained that the emergency fuse clips and holder are correct, owing to the fact… | ||
| scan0171 | Page detailing an electrical testing procedure for a distribution board, dynamo, and cutout, including specific voltage and amperage readings. | ||
| View original record | -2- Contd. volt low c.p. lamp between these points. Make a similar test between the frameworks of the green lamp switch and cutout. Also between the insulated fixed contact carrier and frame of green… | ||
| scan0172 | Instructions for testing dynamo and cutout contact points using ammeters and a voltmeter. | ||
| View original record | -3- Contd. screwed up to low resistance. No undue heating of the cutout contact points must occur. (6) The dynamo speed shall be reduced until the ammeter A1 reading is zero. The connections of this… | ||
| scan0173 | Wiring diagram for an S.S. Distribution Board incorporating a green lamp switch, showing connections for production testing. | ||
| View original record | S.S. DISTRIBUTION BOARD INCORPORATING GREEN LAMP SWITCH CUT OUT SERIES SHUNT E GREEN LAMP SWITCH FRAME CONNECTED TO TERMINAL H. MANGANIN COPPER 1 2 3 4 5 6 7 A C B D F G H J CONNECTIONS FOR PRODUCTION… | ||
| scan0174 | Diagram of a chassis electrical system, showing alternative green lamp or auto charge control switch units. | ||
| View original record | DYNAMO AUTO CHARGE CONTROL SWITCH UNIT COPPER MANGANIN CUT-OUT SHUNT SERIES FIELD FUSE ARMATURE FUSE GREEN LAMP SWITCH UNIT IGNITION & CHARGE SWITCH OFF I & C I LIGHTING SWITCH OFF S. & T. H S & T… | ||
| scan0175 | Results of comparative life tests on switchbox and cut-out contacts. | ||
| View original record | To R. from EFC. c. to Sg. E. BY. Wor. PN. X.7740 EFC1/B28.2.29. SWITCHBOX AND CUT-OUT CONTACT LIFE TESTS. X8730 We have now completed a satisfactory series of four comparative tests of switchbox and… | ||
| scan0176 | Switchbox life tests for a 20 HP vehicle. | ||
| View original record | February 23rd, 1929. X5730. A.D. 28. SWITCHBOX LIFE TESTS. A 20 h.p. switchbox has now been tested out for contact life under each of the four arrangements described in report A.D.8. The switchbox was… | ||
| scan0177 | Cut-out failure testing, comparing field break first versus armature break first sequences. | ||
| View original record | Contd. -2- Cut-out connected to terminal C. (3) Field break first. Failed after 64806 operations. Very slight spark at cut-out on opening; points not badly burnt. Groove burnt in under side of blade.… | ||
| scan0178 | Requesting cost figures and signature for a standardisation sheet concerning an electrical connection change. | ||
| View original record | X7740 To G/Rb. from EFC. EFC2/T29.4.29. RE STANDARDISATION SHEET. Herewith we attach standardisation sheet (2 copies) concerning electrical connection of positive end of cutout shunt coil to dynamo… | ||
| scan0179 | Electrical connection of a cutout shunt coil and the status of its associated standardization sheet. | ||
| View original record | To SG. from EFC. X7740 EFC3/T29.4.29. ELECTRICAL CONNECTION OF POSITIVE END OF CUTOUT SHUNT COIL TO DYNAMO TERMINAL C. INSTEAD OF B. A standardisation sheet as above, dated 5.9.28, had arrived at the… | ||
| scan0180 | Specifications for the standard windings on an electrical cutout. | ||
| View original record | X7740 1.5.29. STANDARD WINDINGS ON ELECTRICAL CUTOUT Shunt 2800 turns of 36 S.W.G. D.S.C. (.0076") Series. 44 turns of 15 S.W.G. D.S.C. (.072") EFC. | ||
| scan0181 | Electrical experimental record sheet for a cut-out shunt connected to terminal C. | ||
| View original record | X. 7740 ELECTRICAL EXPERIMENTAL RECORD SHEETS. Cut-out shunt connected to terminal C. Date on | Location | Date off | REMARKS. | Miles reading start. | Miles reading finish. | Miles covered. | Total… | ||
| scan0182 | Outlining the requirements for switchboxes to work with a long distribution box and auto switch unit. | ||
| View original record | X7740 To EY/RD. from EFC. EFC L/T8.5.29. LONG DISTRIBUTION BOX WITH AUTO SWITCH UNIT. X7730 Switchboxes to work in conjunction with same. We already have on 14-G4 one of the original India switchboxes… | ||
| scan0183 | Electrical connection of the positive end of the cutout shunt coil to dynamo terminal C instead of B. | ||
| View original record | RR 755 REVISED (10H) (D.C. 777 - 29 - 2 - 28) Mᶜ C. Lᵀᴰ 47740 COMPLETED 9.5.29 STANDARDISATION of CHASSIS PARTS. Date 5.9.28. Description of Parts. ELECTRICAL CONNECTION OF POSITIVE END OF CUTOUT… | ||
| scan0184 | Extract from a report on the satisfactory condition of a distribution board and an automatic switch. | ||
| View original record | X7740 30.529. Extract taken from Mr.Hancock's report of 2.5.29. X.7740 DISTRIBUTION BOARD LOP D.71643 X.7650. AUTOMATIC SWITCH LOP. D/181D LEC 2620 We have not observed any defects in these fittings,… | ||
| scan0185 | Modification details for the Distribution Board & Cut-out on the 40/50 Chassis 18-EX. | ||
| View original record | RHC EFC. X7740. BY/RD2/DM.23.11.29. 40/50 Chassis 18-EX. Distribution Board & Cut-out. Sec.8170. Owing to the fact that we are fitting this car with the switchbox having an extended armature contact,… | ||
| scan0186 | Reduced charge switching arrangement and its implications for the dynamo and cut-out shunt coil. | ||
| View original record | X7740 To E. [text struck through] from EFC. c. Rg. [text struck through] c. Hy [text struck through] c. HS. EFCL/AD30.1.30. 6016 X. 7730 [text struck through] REDUCED CHARGE SWITCHING. Your… | ||
| scan0187 | Hand-drawn schematic showing four figures illustrating different component connections. | ||
| View original record | 2 2R 2 2R 2 2R 2 2 2 2R 2 2R FIG. 1. FIG. 2. FIG. 3. FIG. 4. | ||
| scan0188 | Continued discussion on proposed electrical wiring modifications for switchbox and distribution box connections. | ||
| View original record | EFC1/AD30.1.30 contd. -2- the distribution box. Figure 1. shews the present straight through connection of switchbox terminal 2. to distribution box terminal 2. Figure 2. shews the insertion of a… | ||
| scan0189 | Technical note on indicating windings and a scheme for reduced charge switching in generators. | ||
| View original record | EFC1/AD30.1.30 contd. -3- convention of indicating inductive windings by spirals, and purely resistive windings or resistances by straight zigzags. You will see by my note EFC7/AD28.1.30 addressed to… | ||
| scan0190 | Request to produce a modified distribution board and cutout for a 40-50 HP Chassis No. 23-EX, detailing required parts and modifications. | ||
| View original record | X.7740 RHC. EFC. BY/RD2/W.17-3-30. X 6016 Re :- 40-50 H.P. Chassis No. 23-EX. Distribution Board and Cutout, X .7740 Section S170 : 'D' Scheme 315. Will you please put in hand one Distribution Board… | ||
| scan0191 | Extract from Mr. Hancock's report on car 23-EX after a 5,000-mile test, concerning the distribution board and cutout. | ||
| View original record | X7740 4.5.30. Extract from Mr.Hancock's report on 23-EX after 5,000 miles. DISTRIBUTION BOARD AND CUTOUT TO LOP. D.72631. The distribution box is in good condition, and no trouble has been experienced… | ||
| scan0192 | Extract from Mr. Hancock's report on vehicle 23-EX after 9,000 miles, regarding the distribution board and cutout. | ||
| View original record | X7740 21.5.30. Extract from Mr. Hancock's report on 23-EX after 9,000 miles. DISTRIBUTION BOARD & CUTOUT TO LOP. D.72631. The distribution boxhas remained in good condition. No trouble has been… | ||
| scan0193 | Burnt contact points on the cut out for experimental chassis 24-EX. | ||
| View original record | X7740 RHC. from EFC. c. HS/AJL. EFC3/ADL 7.6.30. X.7740. CUT OUT ON 24-EX. We notice that the contact points of the cut out on experimental chassis 24-EX are burnt which is rather unusual. Will you… | ||
| scan0194 | Production issue with black-enamelling on an Armature Spring and requesting an order for a new phosphor bronze version. | ||
| View original record | X7740 RMC. c - EFC. BY/RD3/W.29-8-30. X5740 X7740 Re :- 20/25 H.P.. & 40/50 H.P. CHASSIS. CUTOUT ON DISTRIBUTION BOARD. We periodically run into trouble on Production with the Armature Spring on the… | ||
| scan0195 | Request for the inspection, test and readjustment of a cut-out and ammeter from car 25-EX. | ||
| View original record | X7740 RHC. from EFC. c. HS/AJL. EFC1/AD27.9.30. CUT-OUT AND AMMETER ON 25-EX. X3498. The adjustment of the cut-out on 25-EX does not appear to be quite right and also the movement of the ammeter… | ||
| scan0196 | Electrical equipment failures on a left-hand chassis during a 10,000-mile test in France. | ||
| View original record | X7740. To Wor. from Hs. c. Ev. c. EFC. Hs2/MJ6.10.30. X.6021. X.6006 X.7740 LEFT-HAND CHASSIS. We are about to issue a standardisation sheet for the left-hand car, but in reviewing the failures which… | ||
| scan0197 | Battery failure investigation during a 24-EX 10,000-mile electrical equipment test. | ||
| View original record | X7740 Wor. from EFC. c. Hy. c. Hs. EFC5/AD6.10.30. X6021 X6066 X7740 ELECTRICAL EQUIPMENT ON 24-EX 10,000 MILE TEST. Referring to Hs2/WJ6.10.30 our remarks on the three items are as follows :-… | ||
| scan0198 | Analysis of dynamo and cut-out unit failures during an extended mileage test. | ||
| View original record | EFC6/AD6.10.30 contd. -2- due to the use of an armature which had had the end connections lifted and moved round one segment subsequently to original manufacture. We have run many other armatures so… | ||
| scan0199 | Instruction sheet detailing the premature failure and replacement of cut-out points on car 24EX. | ||
| View original record | RR 238 (150 BKS.) (OB 461-8-12-24) MP 306975 X7740. ROLLS-ROYCE LTD. INSTRUCTIONS. To: EFC Date: 23 Sept 1930 Order No.: AD 67 Customer's No.: X7740 Cut-Out on 24EX (L.H P.II) The cut-out points on… | ||
| scan0200 | Instruction about a dynamo's state after a 10,000-mile test, noting potential revisions needed due to increased output and monitoring new parts on chassis 24EX for overheating. | ||
| View original record | RR 238 (150 BKS.) (DB 451-B-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To __________ 19__ Order No. __________ Customer's No. ? bad state in which the dynamo was found after the 10000 mile test.… | ||
| scan0201 | Proposing a new specification for a distribution box & cut-out production test. | ||
| View original record | X7740 EFC. 29.10.30. X.7740 X.5740 DISTRIBUTION BOX & CUT-OUT PRODUCTION TEST. Attached is proposed specification. You will note I have suggested a volt-drop reading on cut-out series circuit and 15… | ||
| scan0202 | Cover sheet for a Specification of Inspection and Test for a Distribution Box & Cutout. | ||
| View original record | X7740 By. from EFC. c. Sft/Mr Brock EFC5/AD3.11.30. X.7781db. X.5781db. R.R. DISTRIBUTION BOX & CUTOUT X.6016. X.7740 X.5740. Herewith please receive copy of Specification of Inspection and Test for… | ||
| scan0203 | Specification for production inspection, adjustment, and testing of a distribution box and cutout. | ||
| View original record | X.7781db. X.5781db. R.R. DISTRIBUTION BOX & CUTOUT X.6016. X.7740. X.5740. (If type used with high output 48 coil dynamo). SPECIFICATION OF PRODUCTION INSPECTION, ADJUSTMENT AND TEST. (1) The cover of… | ||
| scan0204 | Test procedure for a dynamo and distribution box specifying operating limits for voltage, amperage, and resistance. | ||
| View original record | -2- dynamo, a 12 volt battery of suitable capacity, two ammeters A and B, and two voltmeters V and V, according to diagram herewith, the latter voltmeter having a loose lead suitable for touching on… | ||
| scan0205 | Procedural document outlining the steps for testing dynamo speed and ammeter readings related to cutout contacts. | ||
| View original record | -3- (6) The dynamo speed shall be reduced until the ammeter A reading is zero. The connections to this ammeter shall then be reversed, after which the speed shall gradually be reduced still further… | ||
| scan0206 | Wiring diagram for a distribution box AC cutout test. | ||
| View original record | CONNECTIONS FOR RR U/H/FI. DISTRIBUTION BOX AC CUTOUT TEST. R A V B + - | ||
| scan0207 | The standard arrangement for the switchbox and cutout, discussing circuit connections and test results. | ||
| View original record | X7740. AD. 70 11.11.30. X.5730 X.7730. SWITCHBOX AND CUTOUT ARRANGEMENT X.7740. The standard arrangement we have adopted for the charging switch operation and cutout shunt coil connection is the third… | ||
| scan0208 | Report comparing different electrical arrangements for cutouts and switchboxes, detailing issues like sparking and current management. | ||
| View original record | -2- may in time burn out the cutout shunt coil. It occurs momentarily when switching off charge, with the above arrangement, and the switch not only breaks the normal armature current but a moderate… | ||
| scan0209 | Instructions for testing a standard cutout operating with a high output dynamo. | ||
| View original record | ROLLS-ROYCE LTD. INSTRUCTIONS. To: EFC Order No: AD.72 Customer's No.: X 7740 Cutout Operating with High Output Dynamo A standard cutout has been run on the chassis rig in the laboratory in… | ||
| scan0210 | 60-hour volt-drop test of a switchbox, detailing failure, adjustments, and measurements. | ||
| View original record | ROLLS-ROYCE LTD. INSTRUCTIONS. To.......................................................19 Order No...................................... Customer's No. 2 totalled 60 hours while the number of… | ||
| scan0211 | Instruction sheet with handwritten notes on the results of a 60-hour and 28,000 operation test on electrical points and a dynamo. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To ________ 19 Order No. ________ Customer's No. ________ at the end of the 60 hours and the 28,000 odd operations was… | ||
| scan0212 | Instructions on the dynamo's electrical output, which seldom exceeds 14 amperes due to the headlamp load lowering system voltage. | ||
| View original record | RR. 238 (150 BKS.) (DB 461-8-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To_________________________19___ Order No._________________ Customer's No. J in by switching on first and running up to… | ||
| scan0213 | Electrical experimental record sheet for a distribution board with interchanged fuses. | ||
| View original record | X7740. ELECTRICAL EXPERIMENTAL RECORD SHEETS. Distribution Board with B&C fuses interchanged Late: X7740. | Date on | Location | Date off | REMARKS | Miles reading start | Miles reading finish | Miles… | ||
| scan0214 | Cross-reference note for the 40/50 distribution box and Phantom cut-out. | ||
| View original record | X.7740. 31.12.30. For further matter relating to :- 40/50 distribution box (general) see X.6068 and Phantom cut-out (general) see X.6123. | ||
| scan0215 | Standardisation of chassis parts to use a longer distribution board and simplify the dynamo to battery circuit. | ||
| View original record | RR 755 (10H) (37133. 28-10-32) BM: 3/9064/1. X7740. COMPLETED 28.9.33. STANDARDISATION OF CHASSIS PARTS. Description of Parts: LONGER DISTRIBUTION BOARD INCORPORATING ACCESSORY FUSES. CUT-OUT IN… | ||
| scan0216 | Standardisation document for a new chassis part, specifying the first series it will be fitted to and the date for testing. | ||
| View original record | STANDARDISATION OF CHASSIS PARTS The Number of the first chassis on which the new part will be fitted......... R.2. series. Date when chassis will be handed to test. 11.12.33. Cost of scrapped… | ||
| scan0217 | Distribution board fitted with a green lamp, referencing drawing LeC. 2594. | ||
| View original record | BA. FROM E. C. to BD. EPC. HS. E1/M15.9.28. DISTRIBUTION BOARD FITTED WITH GREEN LAMP. We send you herewith LeC. 2594. shewing the above revised for separate source of current for the green lamp.… | ||
| scan0218 | Extract detailing wiring arrangements for a charging switch, accessory distribution board, and headlamp dimmer. | ||
| View original record | X7741a Extract from:- E1/M22.9.28. X.774D. You will notice (Lec.2595) that the wiring has been arranged for a separate charging switch, and an accessory distribution board for klaxon horn, body… | ||
| scan0219 | Mounting instructions for the accessory distribution board and a related modification. | ||
| View original record | BY. FROM E. Copy to BJ. " EFC. " HS. " EA. X7741a E1/M2.10.28. EAC.10. ACCESSORY DISTRIBUTION BOARD. We send you herewith drawing LeC. 2598., shewing the above. This is to be mounted on the engine… | ||
| scan0220 | List of parts and production instructions for the S.S. Chassis Accessory Distribution Board. | ||
| View original record | x7741 a C. EFC. BY/RD4/ML.25.10.28. S.S. CHASSIS - SEC:8220. ACCESSORY DISTRIBUTION BOARD. L.C.2598. Please receive herewith blueprints of the following parts detailed from L.C.2598:- D.71859 - Base -… | ||
| scan0221 | Lack of provision for an earthing connection on the accessory distribution board. | ||
| View original record | Y7741a c. Hs. BY5/G.26.10.28. ACCESSORY DISTRIBUTION BOARD. -------------------------- Referring to LeC.2598, we note that you have made no provision for an earthing connection. As most of the gadgets… | ||
| scan0222 | Grading of fuses for the main and accessory distribution boards in the electrical system. | ||
| View original record | To E. from EFC. c. BY. BY/RD. X7741a EFC2/T2.11.28. SA. ELECTRICAL SYSTEM. X7740 Referring to your LeC's 2595/6/8 and the question of fusing, it has been noted that you have indicated two strands of… | ||
| scan0223 | Electrical system requirements for heavy and small current accessories, such as a cigar lighter. | ||
| View original record | To E. from EFC. c.c. EY BY/RD. X7741 EFC6/T2.11.28. SS. ELECTRICAL SYSTEM. X7740 ------------------- Further to our EFC2/T2.11.28, it is now pointed out that some accessories, e.g. a cigar lighter,… | ||
| scan0224 | Clarifying the policy for accessory wiring, requiring single-pole systems earthed by the coachbuilder. | ||
| View original record | BY. from E. c. to BJ. EFC. By/Cgh. Hs. X7741 a E2/N15.11.28. ACCESSORY DISTRIBUTION BOARD. X.7780 X.7741 I am sorry not to have replied to your query before, concerning the accessory wiring. I have… | ||
| scan0225 | The equivalent double wire gauge for a single 30 S.W.G. fuse wire for distribution boards. | ||
| View original record | To E. from EFC. W. BY. RY/ED. X7741a EFC3/T16.11.28. DISTRIBUTION BOARD. X7740/1 Further to our EFC2/T2.11.28, with reference to double and single wire fuses for the main and accessory distribution… | ||
| scan0226 | The correct sizing of conductor wires for accessories in relation to the fuse size. | ||
| View original record | BY. from EFC. X7741a EFC2/T22.11.28. CONDUCTOR WIRES TO ACCESSORIES X7740/1 Referring to my EFC2 & 6/T2.11.28 (0 to E) and to E3/M15.11.28 last para., we suggest that we should take some steps to… | ||
| scan0227 | Accessory wiring, confirming the retention of twin wiring due to the unavailability of single-pole fittings and the associated fire risk. | ||
| View original record | X7741a BY. )from E. EFC.) c. to BJ. Hs. Da. E3/M24.11.28. RE ACCESSORY WIRING. X.7741. X.7560 With further reference to the above, it is understood that single pole fittings for interior illumination… | ||
| scan0228 | Requirement for two accessory distribution boards for vehicle wiring. | ||
| View original record | E. C. DA. C. EFC. C. HS. C. BJ. X7741 BYL/G.26.11.28. ACCESSORY WIRING. X7741 ----------- Referring to E3/M24.11.28. we are strongly of the opinion at Derby that two accessory distribution boards are… | ||
| scan0229 | Mr. Royce's approval for the use of an existing auxiliary connecting board and a proposed design modification for the earth terminal. | ||
| View original record | BY. from E. c. BJ. Hs. EFC. X7741a E2/M10.12.28. RE ACCESSORY DISTRIBUTION BOARD. X.7741 X.7760 Regarding the above Mr. Royce agrees to the use of the existing auxiliary connecting board in the… | ||
| scan0230 | Redesign of the accessory distribution board to include an earth terminal. | ||
| View original record | X.7741a R. from E. c. BJ. Hs. c. BY. EFC. SECRET E3/M28.1.29. ACCESSORY DISTRIBUTION BOARD WITH EARTH TERMINAL. X.7741 Owing to the difficulty of obtaining single pole body light fittings, etc. and… | ||
| scan0231 | Instruction memo detailing a conversation about electrical accessories and fittings from a coach-builder's perspective. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 X.7741a ROLLS-ROYCE LTD. INSTRUCTIONS. To E.F.C. Order No AD.22 Customer's No. X7741 X-7760 Date 29. Jan. 1929. Coach-builders Electrical Accessories… | ||
| scan0232 | Note detailing suggested modifications for tail-lamp wiring and a request for a visit to coachbuilders. | ||
| View original record | RR 238 (150 BKS.) [OB 461-8-12-24] MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To___________________________________________________________19___ Order No.___________________ Customer's No. L it would… | ||
| scan0233 | Suggesting someone from Derby visit Mr. Evans in London regarding report AD.22. | ||
| View original record | To BY. from EFC. c. E. Da. X.7741a EFC2/T30.1.29. X.7740 Please find attached copy of my assistant's report AD.22. It would appear to be a useful idea that someone from Derby should visit Mr. Evans at… | ||
| scan0234 | Conversation with Mr. Lee-Evans of Lillie Hall about coachbuilders' electrical accessories. | ||
| View original record | EFC AD.22. 29th Jan. 1929. COACHBUILDERS ELECTRICAL ACCESSORIES. Whilst at Chateauroux I had a conversation with Mr. Lee-Evans of Lillie Hall on the car electrical fittings from the coachbuilders'… | ||
| scan0235 | Coachbuilders' electrical accessories, specifically the fitting of a body light junction box and tail lamp wiring. | ||
| View original record | EFC. E. Da. --- X7741a By/Cgh2/G31.1.29. COACHBUILDERS ELECTRICAL ACCESSORIES. X.7760. X.7741 With reference to FC2/T30.1.29 and copy of report in connection with a conversation with Mr. Evans of… | ||
| scan0236 | Approval and suggested modifications for electrical wiring and lampholders. | ||
| View original record | Hs. from R. T F. BY. c. SG. Wor. SECRET X7741a R2/M1.2.29 REC'D AT WW. 5.2.29 ----- ELECTRICAL EQUIPMENT ETC. X.7741 X.7560 Lec.2652 - Accessory Distribution Board - is approved. Double wiring seems… | ||
| scan0237 | Issue of connecting cigar lighters to the 20 amp ammeter circuit on 'Phantom' cars, proposing a separate fused circuit. | ||
| View original record | S/W. from PN. Copy to EFC. X7741a PN.3/WT25.3.29. Probably the following point has been considered previously but so far no decision has come to our knowledge. The ammeter provided by us on "Phantom"… | ||
| scan0238 | Electrical wiring for accessory apparatus drawing more than 15 amperes on the S.S. chassis. | ||
| View original record | W/S. To PN. from EFC. c. BY. X7741a EFC2/T26.3.29. ACCESSORY APPARATUS TAKING OVER 15 AMPERES. Reference your PN3/WT25.3.29. On the new S.S. chassis it is being arranged that the sequence starter… | ||
| scan0239 | Establishing a standard practice for wiring a heavy-current cigar lighter for coachbuilders. | ||
| View original record | X7741a PN.5/WT19.4.29. S/W. EFC...from PN. Copy to EFC With further reference to my PN.3/WT25.3.29. and your reply I shall be glad to know whether you have heard anything further from E. in reply to… | ||
| scan0240 | The reconsideration of the accessory wiring arrangement for the S.S. | ||
| View original record | W/S PN. from EFC. X774la. EFC1/T22.4.29. X 7741a X 7741b We have received your PN5/WT19.4.29 and it has suggested to us that the whole arrangement of accessory wiring for the S.S. needs further… | ||
| scan0241 | Extract from a test report regarding a heavy ampere discharge issue on a 20-HP car, GLN-51. | ||
| View original record | X7741a BY c. EFC. EP/Thn22/H17.8.29. re. 20-HP. Car. GLN-51. Mann Egerton. Norwich. The following is an extract from a report received from our tester in regard to the final test of the above complete… | ||
| scan0242 | The fitting of additional gadgets and Connolly bumpers to a 20 HP chassis for Mann Egerton. | ||
| View original record | ED c. EFC. X7741a BY/Cgh9/G.23.5.29. re 20 HP. CHASSIS - GIN-56) GIN-51) MANN EGERTON, NORWICH. -------------------------------- With reference to your EP/Thn22/H.17.5.29. and EP/Thn24/H.17.5.29.… | ||
| scan0243 | The standard and a proposed experimental arrangement for the accessory distribution board. | ||
| View original record | X 7741a. EP. from EFC. c. Ey. EFC2/AD19.9.29. X.7741 ACCESSORY DISTRIBUTION BOARD. X 7741b The present standard arrangement of the accessory distribution board is as instructed by West Wittering and… | ||
| scan0244 | Proposing to fit a revised accessory distribution board to chassis 23-EX for a 10,000-mile test as a proposal for standardisation. | ||
| View original record | X7741 RHC. from EFC. c. Hs/AJL. EFC8/AM0.1.30. X.7741. 10,000 MILE TEST CHASSIS 23-EX. Will you kindly note that the revised accessory distribution board to LOP.D.77214 as instructed by… | ||
| scan0245 | Extract from a memo discussing a proposed electrical alteration for the cigar lighter to prevent it from blowing a fuse. | ||
| View original record | X7741a Extract from memo in X.7770 ref. Da/EV1/M26.6.30. (7) The cigar lighter is connected to the junction box on the back of the dash. This junction box is fed from No.6 fuse in the main junction… | ||
| scan0246 | Extract regarding the power supply for the accessory box and cigar lighters. | ||
| View original record | X7741a Extract from memo in X.7770. ref By/Cgh5/G5.7.30. (7) We have already arranged for the accessory box on the back of the dash to be supplied direct from the battery, so that the current required… | ||
| scan0247 | Reconsideration of the accessory wiring arrangement for the S.S. | ||
| View original record | X7741k. W/S. PN. from EFC. EFC1/T22.4.29. X7741a We have received your PN5/WT19.4.29 and it has suggested to us that the whole arrangement of accessory wiring for the S.S. needs further consideration.… | ||
| scan0248 | Wiring arrangement for accessory apparatus, addressing ammeter connections and fuse board specifications. | ||
| View original record | To R. from EFC. c. E. SG. c. PN. Da. c. Wor. By. G/RD c. Da/Ev. X77416 EFC2/T22.4.29. X77418 x7560 x7780 WIRING OF ACCESSORY APPARATUS. There has been some amount of discussion, and possibly slight… | ||
| scan0249 | The electrical circuit arrangement, focusing on which components should pass current through the ammeter. | ||
| View original record | Contd. -2- that they should be supplied not through such a fuse. We already have it that the starter relay current does not pass through the ammeter (it only passes through the main battery fuse) and… | ||
| scan0250 | Continued page discussing electrical wiring configurations, fuse sizes, and conductor choices for vehicle accessories. | ||
| View original record | EFC2/T22.4.29. -3- Contd. ---------------- supplied through any other fuse on the main distribution board except the main battery fuse, the fuses on the accessory distribution board being of the same… | ||
| scan0251 | Continued discussion on wiring specifications for body lights and accessory distribution boards. | ||
| View original record | -4- Contd. we have the 20 to 1 rule for the proportion of the cross section of the conductor to the fuse, that calls for a conductor of 53/36's, so long as a lighter fuse is not put anywhere in the… | ||
| scan0252 | The experimental instruction of arrangements for an Accessory Apparatus and Distribution Board. | ||
| View original record | BY. from EFC. c.to Ey/RD. X 77416 EFC1/T16.5.29 ACCESSORY APPARATUS AND DISTRIBUTION BOARD With further reference to our EFC2/T26.3.29 and our report EFC2/T22.4.29, you will have noted that we have… | ||
| scan0253 | Response to a complaint, suggesting a previously proposed arrangement as the solution. | ||
| View original record | X7741 & BY. from EFC. c.to EP/Thn. EFC1/M18.5.29 With reference to your EP/Thn22/H17.5.29, the complaint referred to in this note would be overcome if the arrangement suggested in our EFC2/T22.4.29 is… | ||
| scan0254 | Blueprints for a new Accessory Distribution Board for 20 HP and 40/50 HP chassis. | ||
| View original record | X7741 C O P Y. RHC. By/RD8/N26.6.29. 20 HP. and 40/50 HP. Chassis - Accessory Distribution Board Sec.8270 LeC.2652. Please receive herewith blueprints of the new parts required for the above unit… | ||
| scan0255 | Standard arrangement and a proposed experimental modification for the accessory distribution board. | ||
| View original record | EP. from EFC. c. By. X7741b. EFC2/ADL9.9.29. X.7741a. ACCESSORY DISTRIBUTION BOARD. X.7741b. The present standard arrangement of the accessory distribution board is as instructed by West Wittering and… | ||
| scan0256 | Covering letter for a report received regarding the lighting system and headlamps on the Phantom II. | ||
| View original record | X9741k EFC. BY EP/Thn8/Hl.11.29. re. LIGHTING SYSTEM PHANTOM II - HEADLAMPS. We attach hereto copy of a report we have received from Mr. Archer in regard to the above, on which we shall be glad to… | ||
| scan0257 | Wiring implications of using Lucas dual-bulb headlamps and fitting cigar lighters. | ||
| View original record | X77416 EP. COPY. 1.11.29. RE LIGHTING SCHEME. HEAD LAMPS 40/50. In view of the fact that the Lucas Head Lamp using two bulbs, one dim and one bright, is being used to a very great extent, do you not… | ||
| scan0258 | The design and wiring specifications for an accessory distribution board. | ||
| View original record | X7741b To EP. from EFC. c. PN. c. Hy. EFC3/AD5.11.29. X.7741b. ACCESSORY DISTRIBUTION BOARD. The difficulty referred to in Mr. Archer's note will be shortly overcome on production by the adoption of… | ||
| scan0259 | Query regarding the production status of the revised auxiliary distribution board for experimental chassis 18-EX. | ||
| View original record | X 7741 b Ry. from EFC. c. By/RD. EFC3/AD20.11.29. REVISED AUXILIARY DISTRIBUTION BOARD. Are you sufficiently forward with this for production to be in a position to give an instruction to RHC. to have… | ||
| scan0260 | Requesting a revised accessory distribution board be fitted to chassis 18-EX. | ||
| View original record | X7741L EFC. BY/RD3/DM.23.11.29. 40/50 Chassis 18-EX. Accessory Distribution Board. Sec.8270. With reference to our memo. BY/RD8/N.26.6.29, instructing 6 Accessory Distribution Boards to LOP. D.72214.… | ||
| scan0261 | Suggestion to consider incorporating the new accessory distribution board on the 20 HP chassis. | ||
| View original record | X7741.b By. from EFC. EFC1/AD28.11.29. X.7741. ACCESSORY DISTRIBUTION BOARD ON 20 HP. CHASSIS. We do not know if it has been proposed to incorporate the new accessory distribution board on the 20 HP.… | ||
| scan0262 | The fitting of an accessory distribution board on a 20 HP chassis, noting no request has been received due to cost-saving instructions. | ||
| View original record | X7741 b EFC. --- BY/Cgh10/G.3.12.29. X.7741. ACCESSORY DISTRIBUTION BOARD ON 20 HP. CHASSIS. ------------------------------------------------- With reference to EFC1/AD.28.11.29. we have not received… | ||
| scan0263 | Proposing the fitting of a revised accessory distribution board to chassis 23-EX for a 10,000-mile test for standardisation purposes. | ||
| View original record | X7741 l RHC. from EFC. c. Hs/AJL. EFC8/ADL0.1.30. X.7741. 10,000 MILE TEST CHASSIS 23-EX. Will you kindly note that the revised accessory distribution board to LOP.D.77214 as instructed by… | ||
| scan0264 | Standardisation of an accessory distribution box for chassis parts. | ||
| View original record | RR 755 REVISED (10H) (DF 697 4-1-29) BM. 2/5943. COMPLETED 4.7.30. x7741(b). STANDARDISATION of CHASSIS PARTS. Date 20.6.30. Description of Parts. Accessory distribution box with two supplies, one… | ||
| scan0265 | Connections for body and cigar lighting, discussing issues with the accessory distribution box. | ||
| View original record | X 7741. By. from EFC. EFC6/AD9.7.30. X.7560. BODY LIGHTING AND CIGAR LIGHTING X.7741. CONNECTIONS. The accessory distribution box on the dash conveniently provides connections from either side of the… | ||
| scan0266 | Wiring modification for the accessory distribution box to improve circuit reliability. | ||
| View original record | X7741. By. from EFC. EFC1/AD11.7.30. X.7560. [struck through] X.7741. CONNECTIONS OF ACCESSORY DISTRIBUTION BOX. Further to our EFC6/AD9.7.30 it now appears, on consideration of a somewhat different… | ||
| scan0267 | Sizing of wires for the accessory box and magneto. | ||
| View original record | EFC1/ADL1.7.30 contd. -2- It is understood that eventually the size of both the wires supplying the accessory box will be 90/36s, certainly the one supplying the heavy intermittent current side will… | ||
| scan0268 | Recommendation on wiring connections for body and cigar lighters. | ||
| View original record | EFC. X7741 BY/Cgh10/G.18.7.30. BODY LIGHTING AND CIGAR LIGHTING CONNECTIONS. X7560 With reference to EFC6/AD.9.7.30. we do not think it desirable to provide another junction box for the purpose of… | ||
| scan0269 | Letter regarding alterations to the Phantom II wiring diagram. | ||
| View original record | W/S. H. from EFC. c. PN. c. EV. X7741 EFCl/AM15.11.30. X.7560. PHANTOM II WIRING DIAGRAM X.7741. Your H16/RK13.11.30. On the print F.81832 to which you refer, one of the fuses of the accessory… | ||
| scan0270 | Phantom II chassis wiring diagram to accommodate high-current devices like cigar lighters. | ||
| View original record | X7741. To. H. from PN. e. to G. c. to EFC. PN.11/OP21.11.30. re. Chassis Wiring Diagram. I had a talk with EFC when I was at Derby last Wednesday regarding chassis wiring diagram for Phantom ll. and… | ||
| scan0271 | Body lighting accessories and the provision for two power supplies on the N.2 series. | ||
| View original record | X7741. By. from EFC. c. H. EFCl/AD22.11.30. X.7741. BODY LIGHTING ACCESSORIES - TWO SUPPLIES. Attached please find copy of PN11/CP21.11.30. though in your Ey/CGH10/G18.7.30 you informed us that you… | ||
| scan0272 | Proposing to add a second accessory distribution box to the rear of the car frame. | ||
| View original record | HS. } FROM E. BY. } C. to SG. WOR. DA/EV. X7741 E1/M18.1.32. X.6082. X.7741. P. 2. BODY WIRING & ACCESSORY BOXES. To meet the requirements of the body builder as regards lighting and accessories, and… | ||
| scan0273 | Proposing a master switch for accessory circuits to prevent battery discharge. | ||
| View original record | X77410 E. From HS/Wst. EY. CK. c. to SS. WGr. c. to DS. HSn. HS/Wst.2/HA.1. R. 32. BODY WIRING. X6082 X77410 Re Cx.4/KW.29.1.32. we consider an additional very useful feature would be a master switch… | ||
| scan0274 | Suggestion regarding the implementation of a master switch for body wiring, particularly concerning its use with an electric heater and safeguarding the ignition circuit. | ||
| View original record | X7741p S/W. Hs/Wst. (c. to By. Sg. Wor. E. DA. Hn.) Cx6/KW4.2.32. X6082 Re - BODY WIRING. Reference Hs/Wst.2/MA.1.2.32. It has been suggested here that the master switch referrred to would only be… | ||
| scan0275 | Arrangement of the master switch for body wiring to include a red warning light. | ||
| View original record | X7741p CX. From Hs/Wst. c. to Hy. Sg. c. to Wor. H. c. to Da. Ha. Hs/Wst.S/NA.S. 2. 32. MASTER SWITCH FOR BODY WIRING ETC. X6082 Re your Cx.S/KV.4.2.32., we would rather arrange the master switch so… | ||
| scan0276 | Suggested wiring scheme for main distribution fuses and junction boxes. | ||
| View original record | X7741b E. From Hs/Wst. c. to DA/EV. Sg. c. to Wor. Ry. Hs/Wst.9/MA.5. 2. 32. X6082 WIRING. We attach herewith our suggested scheme of main distribution fuses which with the deletion of the cut-out and… | ||
| scan0277 | Agreeing to a suggestion for a red warning light to indicate when both the ignition and master switch are left on. | ||
| View original record | Y7741b S/W. Hs/Wst. (c. to BY. Wor. Sg. Da. E. Hn.) Cx17/KW.3.2.32. V6082 Master Switch for Body Wiring. etc. We thank you for your Hs/Wst8/MA5.2.32., and agree to the suggestion contained therein,… | ||
| scan0278 | Proposing a new chassis wiring system to protect batteries from over-discharge using a master switch. | ||
| View original record | To R. FROM Hs/Wst. c. Wor. Eg. C. H. Da. C. EV. Cx. Hs/Wst.1/ADS.2.32. R.R. CHASSIS WIRING. We are sending you herewith a diagram showing a suggestion we have in mind for the protection of our chassis… | ||
| scan0279 | Safety mechanism for the starter motor circuit using a diaphragm. | ||
| View original record | -2- The diaphragm might also be additionally utilised to break the teazer circuit of the starter motor in order to prevent possible damage should the starter button be inadvertently pressed while the… | ||
| scan0280 | Wiring diagram for a master control switch with associated fuses and a warning lamp. | ||
| View original record | + MASTER CONTROL SWITCH FUSES. TO JUNCTION BOXES. POSITIVE SUPPLY FROM IGNITION SWITCH CONTACTS OPERATED EITHER BY CUT-OUT OR OIL PRESSURE WARNING LAMP FUSE IGNITION AM '32 | ||
| scan0281 | Potential issue with chassis wiring regarding the red lamp's behaviour. | ||
| View original record | S/W. Hs/Wst. X7741b. Cxl2/KW11.2.32. X6082 R.R. CHASSIS WIRING. We have read with interest your Hs/Wst.1/AD9.2.32. There is just one point that occurs to us. An owner might wish to leave his car for a… | ||
| scan0282 | Clarifying the policy for the wiring of accessories on the J.3 chassis. | ||
| View original record | E. FROM DA/EV. X.7741b (handwritten) DA/EV2/M2.2.32. X.6082 X.7741b C. to SG. WOR. BY. HS. WIRING. In view of some little misunderstanding between ourselves and Derby on the subject of the wiring of… | ||
| scan0283 | Steering tests in France, detailing the abandonment of a new side steering tube design following an incident. | ||
| View original record | To R. from Hs/Rm. c. to BJ. Wor. c. to E. Da. c. to HY. X7820 Hs/Rm1/LG2. 9.26. 12-EX - STEERING TESTS IN FRANCE. X7430 X7450 We have abandoned the idea of recommending | ||
| scan0284 | Report page discussing tests on new 6-inch traction tread Dunlop tyres, comparing them to Michelin and other Dunlop tyres. | ||
| View original record | contd :- -2- with advantage to give greater control on covered cars. We have tried out the new 6" traction tread Dunlop tyres just received. While not quite as bad as the triple stud type, they… | ||
| scan0285 | Low-pressure tyres and flexible road spring configurations for the Phantom and 20 HP models. | ||
| View original record | HS. EP. from R. c. to BJ. BY. PN. CWB. 47820 R2/M20.7.28. PHANTOM AND 20 HP. X.7410 X.7820 RIDING QUALITIES. X.8410 X.5820 X.5410 X.235 TYRES. Naturally we must have low pressure tyres for both these… | ||
| scan0286 | Technical discussion on car suspension, focusing on flexible springs and hydraulic shock dampers. | ||
| View original record | contd :- -2- depart from flexible springing for the sake of high speed riding, but since we have got hydraulic dampers we must increase the effectiveness of these dampers, especially on the recoil… | ||
| scan0287 | Buffer penetration tests and wheel arch suitability for different tyre sizes. | ||
| View original record | X7820 X7410 To DA/EV. from Hs/Rn. c. to BY. c. to Sg. Hs/Rn3/LG23. 8.28. re. tests on buffer penetration. With reference to DA/EV3/M3.7.28 and DA/EV2/M14.8.28 Our tests shew that we can get 5/8" bump… | ||
| scan0288 | Use of smaller 20-inch wheels on the 'SS' model to lower the car's frame height. | ||
| View original record | Hs. from DA/EV. +7820 DA/EV1/M6.9.28. c. to BY. SG. 'SS'. X.7770 X.7380 X.7820 X.615 X.7810 The first SS., which R. hopes to have in the south of France, will have a 4-seater saloon cabriolet body of… | ||
| scan0289 | New tyre models from the Dunlop Rubber Co. | ||
| View original record | To R. from Hs/Rm. c. to BJ. Wor. c. to RG. E. c. to DA. BY. c. to SG. x7820 Hs/Rm3/LG25. 9.28. DUNLOP RUBBER CO. x4050 x7820 x5820 x8005 x2446 We visited the Dunlop Rubber Co. on the 24th. inst. We… | ||
| scan0290 | Tyre performance concerning shimmy, alongside findings on rubber engine feet and cylinder joints. | ||
| View original record | contd :- -2- give us greater immunity from shimmy than the standard tyre on the 40/50. If so, they might help us in getting a good front end ride. It will be recollected that the 6" tyre was… | ||
| scan0291 | Blueprint showing inflated and deflected cross-section shapes for four types of 32x6.00 Dunlop tires under standard load and pressure. | ||
| View original record | 32x6.00 DUNLOP RANGE INFLATED & DEFLECTED SHAPES AT STANDARD LOAD & PRESSURE. Top Left Drawing: 5.96" INFLATED WIDTH 32.6" INFLATED DIA 32 x 6.00 DUNLOP 'SILENT' EFFECTIVE RADIUS 15.18" LOAD 13 C.W.T… | ||
| scan0292 | Selection of car tyres, their characteristics, and specific sizes for different models. | ||
| View original record | As. from R. c. to BJ. Wor. c. to C. BY. c. to DA. SG. 7820 R1/M6.10.28. CAR TYRES. X.5820 X.7820 X.4020 We are anxious to use the quietest tyres of the most flexible type (for good low speed riding,)… | ||
| scan0293 | Wheel arch clearances for 18-EX and 'SS' cars. | ||
| View original record | To BY. from DA/EV. c. to BJ. Hs. Y7820 Ev2/M18.10.38. 'SS'. X.615 WHEEL ARCH CLEARANCES. 18-EX. X.7390 X.7820 We send herewith N.sch.2720 shewing the wheel arch clearances for 18-EX and all 'SS' cars… | ||
| scan0294 | Ordering 32 X 6.75' tyres and sourcing an alternative supplier to prevent chassis production delays. | ||
| View original record | X7820 To ROY. from Hs/Rm. Hs/Rm2/LG14.11.28. TYRES. X7820 X2679 With reference to 32 X 6.75" tyres for the 'SS'. Will you please order one set of these tyres in the standard triple stud tread. We… | ||
| scan0295 | Requesting the Paris Depot to obtain and despatch six Dunlop tyres for car 19-EX. | ||
| View original record | Mr. Punt - Paris Depot from Hs/GWH. +7820 Hs/CWH/LG19.2.28. +4050 DUNLOP TYRES - 19-EX CAR. Will you please obtain 6 Dunlop tyres 33 X 6.75 for 21" rims and despatch them to Chateauroux for the above… | ||
| scan0296 | Proposing to use 20' rims instead of 21' rims on the 'SS' model and enquiring about suitable silent tread tyres from Dunlop. | ||
| View original record | Roy. from Hs2/LG4. 3. 29. x7820 Hs2/LG4.3.29. +4050 It is now proposed to use 20" rims on the 'SS' instead of 21" rims. We should be very glad if you will find out from Messrs. Dunlop when we can have… | ||
| scan0297 | Wheel and tyre sizes for the S.S. car and their impact on steering performance. | ||
| View original record | To DA/EV. from Hs. c. to R. Sg. X7820 Hsl/LG28.5.29. X7810 [crossed out] X7820 The size of wheel which has been instructed and ordered for the S.S. car has a 21" rim. Comparative tests have frequently… | ||
| scan0298 | Comparison test report for 7 x 20 tyres fitted to a Phantom Chassis. | ||
| View original record | X7820 Hs/Rm from Mx. Mx4/T17.6.29 WHEELS WITH 7 x 20 TYRES. We have made a comparison test of a pair of wheels fitted with above tyres which you have supplied us for Phantom Chassis. The only thing we… | ||
| scan0299 | Testing and standardization of 20-inch wheels and 7-inch tyres. | ||
| View original record | Handwritten: X7820 To | ||
| scan0300 | Comparison of specifications for a standard silent tread tyre and a Dunlop 'Fort' reinforced tyre. | ||
| View original record | x7820 Hs/AJL.1/MJ.14.9.29. x4050 x7820 x990 7.00 - 21" DUNLOP SILENT TREAD 'FORT' REINFORCED TYRES. This size of tyre has been produced as an alternative to the 33 x 6.75" silent tread tyre at present… | ||
| scan0301 | The disadvantages of fitting wider tyres, detailing the negative effects on steering. | ||
| View original record | -2- under running conditions. Owing to the increase in wisth of the tread, the steering is very much heavier when shunting and is heavy and uncertain up to 35 m.p.h., especially noticeable in traffic.… | ||
| scan0302 | Alternative tyre options and their specifications for the Phantom II chassis. | ||
| View original record | To BY. from Hs/AJL. c. to Da. X 7820 Hs/AJL3/BE12.11.29. PHANTOM. II. ROAD WHEELS & TYRES. The following tyres are being fitted to Production chassis at customers' request. They will not fit the… | ||
| scan0303 | Factors affecting the riding comfort of the Phantom II, including tyre pressures, spring bedding, and load distribution. | ||
| View original record | To Ps. (Paris). From Hs/Rn. X7820 HS/Rn.2/MJ.1.1.30. X.7770 X.7410 X.7820 PHANTOM 11 RIDING. We have now had a fair amount of experience with Phantom 11 riding. We are sorry it was not possible for us… | ||
| scan0304 | Letter discussing a proposal for Phantom II wheel and tyre standardisation and including a customer testimonial. | ||
| View original record | To OY. From Hs/Rm. x7820 HS/RM.4/MJ.1.1.30. x7810 x7820 With reference to your OY.5/16.12.29., we are interested to note your proposal that you may start the Phantom ll on production with a 19" well… | ||
| scan0305 | The fitting of large section tyres for India and other markets, addressing customer objections and clearance issues. | ||
| View original record | S/W x7820. C13/C9.1.30. x.4462 X.7960 X.7820 X.5820 LARGE SECTION TYRES - INDIA & OTHERS. Hs/Rm3/MJ.1.1.30. We note the objections to the "India" tyres and are arranging for this information to be… | ||
| scan0306 | From 'PN' withholding signature on a standardisation form for 20' wheels with 7' tyres due to concerns from past testing. | ||
| View original record | S/W. Hs...From PN x7820. PN.1/WT13.2.30 X.7810 X.7820 With regard to the standardisation form in respect of. the 20" wheels with 7" tyres, I have not signed this hitherto because I have not felt very… | ||
| scan0307 | Discontinuing the 6½' section tyre and replacing it with the 7' section tyre for 20' rims. | ||
| View original record | SG. From HS. c. to PN. L. Won x7820 HS.1/MJ.14.2.30. x7810 x)820 K4050. 20" RIMS. 7" TYRES. The tyre makers have decided to discontinue the manufacture of the 6½" section tyre and to replace it with… | ||
| scan0308 | Standardisation of chassis parts, specifically 20' wheels with 7' tyres. | ||
| View original record | RR 755 REVISED (10H) (DF 687 4-1-29) BM. 2/5943. X7820. COMPLETED 18.2.30. STANDARDISATION of CHASSIS PARTS. Description of Parts. 20" WHEELS WITH 7" TYRES. Origin. To obtain the advantages of a… | ||
| scan0309 | The difficulties of balancing wheels using 'Fort' tyres and the proposed solution using larger balance washers. | ||
| View original record | BY. From Hs/Rm. X7820 Hs/Rn.2/MJ.25.3.30. BALANCING OF WHEELS. X7810 We have already explained to you the difficulties we are coming up against with the "Fort" tyre and the 20" wheel in service.… | ||
| scan0310 | Comparison of dimensions and weight between a U.S. Royal tyre and standard Dunlop tyres. | ||
| View original record | X 7820 To OY. From Hs/AJL. c. c. to Ry. c. c. to Da. c. c. to EV. Hs/AJL.2/IAJ.8.5.30. --------------------- X3895 x7820 X5820 7" x 19" U.S. ROYAL TYRE (FLAT BASE RIM).… | ||
| scan0311 | Comparison table of specifications for four different types of tyres. | ||
| View original record | Header 1: 7" x 19" U.S. Royal Tyre. Header 2: 33 x 6.75 Silent Tread Dunlop. PI Header 3: 6 x 19" S.T. Fort Reinforced Dunlop. D/25 Header 4: 7 x 20 S.T. Fort Reinforced Dunlop. PII Max. width of tyre… | ||
| scan0312 | Recommendations for resolving Phantom II steering complaints, focusing on wheel balance, tyre pressure, and pivot lean. | ||
| View original record | X7820. To Hm. For Depot Sheet. From Hs/Rm. c. to MX. c. to BY. Hs/Rm.1/MJ.13.5.30. X.401 X.7520 X.7810 X.7420 X.7820. X.7430 X.7425 PHANTOM II STEERING. We have investigated one or two cases of… | ||
| scan0313 | Technical notes on adjusting the cross-steering tube, toe-in, and shock absorbers. | ||
| View original record | -2- the measurement of pivot lean. (4) CROSS-STEERING TUBE. A very important feature in the functioning of the steering is the 'toe-in' of the front wheels, or front wheel 'gather' (Page 13 Steering… | ||
| scan0314 | Checks for poor steering, including shock absorbers, tyres, and a cross-steering tube load test. | ||
| View original record | -3- It is possible that when the shock absorbers are filled, all the air is not excluded from the system and consequently as the car is driven about this air is expelled and the oil level falls.… | ||
| scan0315 | Blueprint showing a cross-section of a steering tube assembly with notes on adjustment and poundage requirements. | ||
| View original record | GAP HERE .005 TO .015 IF THIS GAP IS TOO GREAT WHEELS MAY TOE IN EXCESSIVELY A PACKING WASHERS FITTED HERE TO INCREASE POUNDAGE B STANDARD POUNDAGE REQUIRED TO TWIST THE CROSS STEERING TUBE BY MEANS… | ||
| scan0316 | Correcting the wheel revolutions per mile for a 7 x 20' Silent Tread Fort Reinforced Dunlop tyre. | ||
| View original record | x7820. To Oy. From Hs/AJL. c. to By. c. to Ds. c. to EV. Hs/AJL.1/MJ.15.5.30. x3895 x7820 x5820. TYRE SIZES. With reference to Hs/AJL.2/MJ.8.5.30., the figure of 630.5" quoted for the wheel revs/mile… | ||
| scan0317 | Recommended tyre pressures for Phantom II and 20-HP models. | ||
| View original record | JLE. Lillie Hall. x7820 c. Rm. EP/Thn3/H20.5.30. x7820 x5820 re. Tyre Pressures. With reference to your memo. LE6/R13.5.30. The tyre pressures we recommend for Phantom II. and 20-HP both for high… | ||
| scan0318 | Performance of modified silent tread tyres after skidding experiments by the Dunlop Rubber Co. | ||
| View original record | To R. From Hs/Rn. c. to Ag. G. c. to PM. Ev. c. to K. Da. Handwritten: X7820 Hs/Rn.1/WJ.3.6.30. X4050 X7820 X7960. SILENT TREAD TYRES. -------------------- We are sending to London today, a pair of… | ||
| scan0319 | Modifications made to silent tread tyres, comparing appearance and performance against Triple Stud tyres. | ||
| View original record | -2- Hs/An.1/BL.3.6.30.Contd. be preferred every time. The only modification which has been made to the improved silent tread tyres we are sending to London is a series of grooves which have been cut… | ||
| scan0320 | Recommended tyre pressures for the Phantom II model. | ||
| View original record | EP. From Hs/Rm. 7820. Hs/Rm.9/MJ.4.6.30. With reference to EP/Thn3/H20.5.30. The tyre pressures we indicated in the Instruction Book were as follows :- Phantom ll High Speed work. 40 lbs. Front. 35… | ||
| scan0321 | New balance weights and imbalance limits for 7' tyres on 20' rims for the 40/50 model. | ||
| View original record | [Handwritten top left]: X7820 BY. From Hs/Rm. Hs/Rm.4/MJ.5.6.30. [Handwritten top right]: X7820. X4050. X401. 7" TYRES FOR 20" RIMS. 40/50. The new balance weights on the 20" rim give a mass… | ||
| scan0322 | Requesting a full set of four 'Silent Tread Tyres' for proper testing. | ||
| View original record | S/W. Hs. From PN. COPY. X 7820. PN10/WT6.6.30. X.4050. X.7820. X.7960. Silent Tread Tyres. In reply to your Hs/Rml/MJ.3.6.30. how are we going to form an adequate opinion as to these tyres with only… | ||
| scan0323 | Dispatch of new Silent Tread Tyres with improved non-skidding properties for testing and feedback. | ||
| View original record | PN. From Hs/Rm. c. to C. Y78-0 Hs/Rm.1/MJ.17.6.30. Xu550 We are sending you today, four of the first type of Silent Tread Tyre with the improved non-skidding properties. We have another type of… | ||
| scan0324 | The performance of new tyre treads during a road test in wet conditions. | ||
| View original record | COPY. C. From PN. c. to Hs. x 7820. PN.6/WT23.6.30. X. 7960. X. 4550. X. 7820. I gave this car a run yesterday, having the four wheels which came from Derby fitted with this new tread. Incidentally… | ||
| scan0325 | The dispatch of modified 'Silent Tread' tyres for evaluation and a note on Dunlop making new moulds. | ||
| View original record | PN. From Hs/Rn. c. to C. x7820. Hs/Rn.4/MJ.26.6.30. x4050 x7820 x7960 We have sent you the second set of modified Silent Tread tyres by car 14-G4. We should like your opinion on these tyres as early… | ||
| scan0326 | Excessive wheel toe-in causing abnormal tyre wear, supplementing Depot Sheet No.160. | ||
| View original record | COPY. 17820 To Hm. From Hs/Rm. c. to Wor. c. to BY. c. to EP. c. to MX. Hs/Rm.1/MJ.27.6.30. X.401. X.7320. X.7425. X.7810. In Depot Sheet No.160 we pointed out the importance of the correct toe-in… | ||
| scan0327 | List of customer cars showing excessive toe-in, with owner details, vehicle specifications, and mileage. | ||
| View original record | Y-S-C X7820 ROLLS-ROYCE CARS SHOWING EXCESSIVE TOE-IN. X4117 X.401. X.7820. X.7425. X.7810. Marquis of Anglesey. (Via Hoopers, Chelsea). Rolls-Royce Phantom 11. 1930. 33x6.75 Silent Fort. Toe in 1/2".… | ||
| scan0328 | Recommendations for Phantom II tyre pressures for normal use with a warning for high-speed touring. | ||
| View original record | Hd. From Hs/Rn. For Depot Sheet. x7820 Hs/Rm.5/MJ. 9.7.30. PHANTOM 11 TYRE PRESSURES. We find as a result of tests carried out on finished cars that it is feasible to run front tyre pressures at 35… | ||
| scan0329 | The encouraging test results of a new experimental Dunlop silent tread tyre. | ||
| View original record | S/W. Wor. From PN. c. to Hs. COPY. X> 820. X.4050. X.7820. X.5820. PN.3/WT8.8.30. The set of the latest type of silent tread Dunlop tyres (Experimental) which have beeen run on 1-WJ has given… | ||
| scan0330 | Query regarding the standardisation of a new silent Dunlop tyre with improved road adhesive qualities. | ||
| View original record | S/W Hs x7820. Y4050 x7820. C12/C17.9.30. Will you please let me know if you are doing anything towards standardising the new type of Dunlop tyre which is silent but has better road adhesive qualities.… | ||
| scan0331 | Communication regarding gaining more experience with a set of tyres, specifically wear, before standardising them. | ||
| View original record | C. From Hs/Rn. X7820. Hs/Rn.3/MJ.22.9.30. X.4050. X.7820. With reference to your C12/C17.9.30. We are trying to get a little more experience with these tyres before standardising them, especially with… | ||
| scan0332 | Urgency of getting experience with new tyres due to complaints about the adhesive properties of 'Silent tyres'. | ||
| View original record | S/W Hs/Rm X7820. C4/C26.9.30. X.7820. X.4050. Re TYRES. Hs/Rm3/MJ22.9.30 Thanks for your memo. I note you feel you ought to have a little more experience of these tyres. We should like you to get this… | ||
| scan0333 | The wear and tear of experimental silent type tyres after 4,700 miles of use. | ||
| View original record | COPY. S/W. Hs/Rm. X>820. C.10/C4.10.30. X.4050. X.7820. X.5820. NEW TYPE TYRES. On the question of wear and tear with the experimental silent type tyre which has been running on our Trials car, this… | ||
| scan0334 | Letter to the Dunlop Rubber Co. Ltd. confirming the 'Silent Tread Tyre' will be the standard equipment for cars in the immediate future. | ||
| View original record | X7820 X.4050. X.7820. X.5820. Expl. Dept. Hs/Rn.2/MJ. 7th. October 1930. The Dunlop Rubber Co. Ltd., Fort Dunlop, Erdington, BIRMINGHAM. For the attention of Mr. Bond. Dear Sir, With reference to your… | ||
| scan0335 | The testing of modified Dunlop Silent Tread Tyres for road adhesion and noise characteristics. | ||
| View original record | To R. From Hs/AJL. c. to Sk. Wor. c. to C. Da. c. to EV. x7820 Hs/AJL.1/MJ.7.10.30. DUNLOP SILENT TREAD TYRES. X.4050. X.7820. X.5320. We have received for test a set of Dunlop 7" x 20" Silent Tread… | ||
| scan0336 | Tyre modification, road adhesion testing, and a proposal for their standardisation. | ||
| View original record | -2- improvement in road adhesion is that has resulted from the modification, because we have not had the opportunity of testing them under the bad conditions that occur on some of the London roads,… | ||
| scan0337 | Returned and signed standardisation sheet regarding a modification to the tread pattern on tyres and an enquiry about availability. | ||
| View original record | COPY. S/W. Hs. X7820. C14/C9.10.30. X.4050. X.7820. X.5820. I return herewith Standardisation Sheet No.4050/ 7820 "Modification to tread pattern on tyres" duly signed by me. No doubt you will be… | ||
| scan0338 | Standardisation document for a modification to the tyre tread pattern to improve grip. | ||
| View original record | RR 755 (10H) (3-7-30) BM. 6/2571. STANDARDISATION of CHASSIS PARTS. Description of Parts: MODIFICATION TO TREAD PATTERN ON TYRES. Origin: To improve grip on the road. Experimental Test Report: This… | ||
| scan0339 | Use of non-Fort tyres on the 20' wheels of the Phantom II due to steering issues. | ||
| View original record | X7820 Roy. from Hs/Rm. c. Wor. Hs /Rm1/AD24.11.30. X7820 X4050 NEW SILENT TREAD TYRE. With reference to Roy3/MG21.11.30. We are surprised to hear that non Fort tyres are being fitted to the 20" wheels… | ||
| scan0340 | Comparing Dunlop and India tyres for 40/50 & 20 HP cars. | ||
| View original record | X7820 W/S. To C. From Hs/Rm: c. to Sg. Wor. Hs/Rm.4/KT.5.2.31. X.7820. X.5820. X.4462. TYRES 40/50 & 20 HP. CARS. Dunlops recently supplied us with two tyres from their Canadian factory with a view to… | ||
| scan0341 | Suggesting a review of recommended tyre pressures for improved comfort, comparing instruction book figures with lower, personally used pressures. | ||
| View original record | To BY. from ROY c. to Hs. ---------------- ROY2/MG27. 6. 32 Might I suggest the question of the Tyre Pressures recommended for our various Chassis be investigated again, as I believe the figures… | ||