Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Internal request to order 200 Indicator diagram cards from The Crosby Valve & Engineering Co. Ltd. | ||
| View original record | To Roy/Ms. from Hs/Rn. X.4443 Hs/Rn2/LGS.7.27 Will you please order for us from The Crosby Valve & Engineering Co.Ltd., 41/42 Foley Street, W.1. 200 Indicator diagram cards - as sample attached.… | ||
| Scan002 | Letter from Crosby Valve & Engineering Co. regarding Crosby Indicators and enclosing pamphlet L.1205. | ||
| View original record | TELEPHONE Nos MUSEUM { 4343. 4344. 4443 TELEGRAPHIC ADDRESS: CROSBY, LONDON. CROSBY VALVE & ENGINEERING Co. LIMITED. WORKS: ROTHERHAM. DIRECTORS: GEORGE A. MOWER, M.I.Mech.E. CHAIRMAN. ROBERT CLARK,… | ||
| Scan003 | Page two of a letter from Crosby Valve & Engineering regarding stock availability. | ||
| View original record | -2- Messrs.Rolls-Royce Ltd. 4th April,1928. London stock, in 2/3 days. Assuring you of our best attention, and thanking you in anticipation. Yours faithfully, CROSBY VALVE & ENGINEERING Cº LTᴰ… | ||
| Scan004 | Two-page pamphlet describing Amsler's Planimeters and Crosby Indicators, including models, features, purpose, and pricing. | ||
| View original record | L 16 Amsler's Planimeter. Planimeter No. 1. No. 1 represents the Planimeter in its simplest form, as designed to measure areas in square inches and decimals of a square inch; it has but one wheel. An… | ||
| Scan005 | Blueprint detailing a modification to a Crosby Indicator for use with hydraulics. | ||
| View original record | CROSBY INDICATOR 7-193 Hs. 135 7.1.33 FOR END DIMENSIONS SEE E 27486 E 27436 E 27485 ¼ COPPER PIN. MODIFICATION TO INDICATOR FOR HYDRAULICS | ||
| Scan006 | Blueprint showing modifications to a Crosby hydraulic indicator. | ||
| View original record | CROSBY INDICATOR MODIFICATIONS TO HYDRAULIC INDICATOR 1) 1 off BRASS Dimensions: 1.400-8, 1.200-0, 1.100, .950, .748-1, .500+1/2, .660, .275, .750, .943, 1.062 2) 1 off M.S. 3 GROOVES .025 WIDE AND… | ||
| Scan007 | Urgent internal memo requesting a catalogue for a Crosby Indicator. | ||
| View original record | To Roy. from Hs/Rm. X4943 Hs/Rm4/LG2. 4. 28. We are considering buying a Crosby Indicator. We should be obliged if you would obtain a catalogue for us from these people. We do not know their address.… | ||
| Scan008 | Letter from the London Midland and Scottish Railway Company regarding the loan of a locomotive indicator. | ||
| View original record | MG x4493 S 44*-10/25. LONDON MIDLAND AND SCOTTISH RAILWAY COMPANY. HENRY FOWLER, CHIEF MECHANICAL ENGINEER. CHIEF MECHANICAL ENGINEER'S OFFICE, TELEGRAPHIC ADDRESS: 'FOWLER, c/o BESLINE, DERBY.'… | ||
| Scan009 | Urgent internal memo requesting the purchase of specially prepared indicator cards. | ||
| View original record | To Roy. from Hs/Rm. Lu443 Hs/Rm4/LG19.5.28. Will you please order from : The Crosby Valve & Engineering Co.Ltd., 41/42 Foley Street, London W.1. 4 packets of 50 specially prepared indicator cards.… | ||
| Scan010 | Modification of a Crosby steam engine indicator to measure hydraulic shock absorber pressures. | ||
| View original record | To R. from hs/Rm. c. to BJ. Wor. c. to E. DA. c. to OY. BY. c. to Na. +C4443 Hs/Rm2/LG18.6.28. HYDRAULIC SHOCK ABSORBERS. +235 for prints We have modified an old Crosby steam engine indicator to make… | ||
| Scan011 | Summary of test results comparing pressure velocity dampers with standard dampers. | ||
| View original record | contd :- -2- the oil rushing from the low pressure side through the straight passages. Summarising the information that we have gained from these diagrams :- (1) That the working pressure on the low… | ||
| Scan012 | Vehicle suspension testing, concerning low-speed valves, shock absorbers, and axle movements. | ||
| View original record | contd :- -3- Also, at the present moment if some foreign matter lodges under the low speed valve, the low speed loading ceases to exist which is undesirable if the car is relying on the dampers to… | ||
| Scan013 | Comparison table of rear hydraulic shock damper characteristics for viscosity loading and standard dampers. | ||
| View original record | ROLLS ROYCE REAR HYDRAULIC SHOCK DAMPER CHARACTERISTICS. | Stroke in ins. at end of 13.5" lever. | VISCOSITY LOADING DAMPER. | STANDARD DAMPER. | |---|---|---| | | MEP. | Max: press: | Low press:… | ||
| Scan014 | Tests to determine the effect of temperature rise on the behaviour of hydraulic dampers. | ||
| View original record | X44H3 To R. from Hs/Rm. c. to BJ. Wor. c. to E. DA. c. to OY. HYDRAULIC SHOCK ABSORBERS. X. 235. X. 1588 We have conducted tests to determine the effect of temperature rise on the behaviour of the… | ||
| Scan015 | The second series of tests on a hydraulic damper, detailing the behaviour of staggered orifices under temperature variation. | ||
| View original record | contd :- -2- is negligible under all circumstances. The indicator therefore confirms our impressions that the action of the RR. hydraulic damper is very consistent under all conditions unless some… | ||
| Scan016 | Damper performance tests, summarising results and proposing design improvements. | ||
| View original record | contd :- -3- A third series of tests were carried out with a standard damper, the only alteration to which was a reduction in the bore of the high and low pressure passages. We cannot explain why the… | ||
| Scan017 | Blueprint showing two graphs of standard damper performance variation with temperature at high and low pressures. | ||
| View original record | STANDARD DAMPER. VARIATION WITH TEMP. FIG I. LBS/D" PRICES C 15°C 20°C 60°C HIGH PRESSURE. 64/80 LB. LOADS SLOW 13" LEVER 200 CYCLES/MIN. 11" STROKE OF BALL. FIG II LBS/D" LOW PRESSURE. 64/80 LB.… | ||
| Scan018 | Blueprint showing graphs and diagrams analyzing the variation in performance of a staggered orifice system caused by temperature changes. | ||
| View original record | STAGGERED ORIFICE. VARIATION OCCASIONED BY TEMPERATURE. Top Left Graph: LBS/D" 800, 600, 400, 200, 0 22° C 61° C HIGH PRESSURE 55/60 LBS LOADS STAGGERED H.P. PASSAGES .218 DIA 13' LEVER 200 CYCLES/MIN… | ||
| Scan019 | Graphs showing the variation of reduced diameter restrictions with oil temperature. | ||
| View original record | PLAIN REDUCED DIA: RESTRICTIONS. VARIATION WITH OIL TEMP: Top Left Graph: L.P { 55/60 LB. LOADS, 13" LEVER } H.P. PORT .187" DIA. L.P. .098" DIA 200 R.P.M. 11" STROKE. 1" = 332 LB/SQ" 20°C, 60°C SLOW… | ||
| Scan020 | Arranging to test two steam indicators from vehicle 66-YC. | ||
| View original record | S/W. Hs. Copy to:- Crawford. [Handwritten annotations:] x4468 [Signatures/initials] Please get hold of these bits. 31/8/28 [Typed text:] Bt6/GM/28.8.28. PN. has asked me to write to you to say that in… | ||
| Scan021 | Pair of steam indicators and a list of discussion points for an upcoming meeting. | ||
| View original record | X4468 PN.11/WT4.9.28. S/W. Hs....from PN. Good 16-6 You should have received in a car which came to Derby two or three days ago, a pair of steam indicators instruments addressed to you. I imagine that… | ||
| Scan022 | Confirming the receipt of two steam engine indicators for a shock absorber rig. | ||
| View original record | To PN. From Hs/Bm. M4468 X235 Hs/Rm5/LG4.9.28. We have received the 2 steam engine indicators. They are quite a different type to the one we have been using but we are seeing if we can adapt them to… | ||
| Scan023 | Letter from the London Midland and Scottish Railway Company requesting the return of a loaned steam engine indicator. | ||
| View original record | LONDON MIDLAND AND SCOTTISH RAILWAY COMPANY. 4443 PLEASE REFER TO DU 4611 IN YOUR REPLY HENRY FOWLER, CHIEF MECHANICAL ENGINEER. TELEGRAPHIC ADDRESS: "FOWLER. C/O BISLINE. DERBY." TELEPHONE No. 1100.… | ||
| Scan024 | Arranging the return of a loaned Crosby Steam Indicator to the London Midland & Scottish Railway Company. | ||
| View original record | X4443 To BP. from Hs/Rn. c. to Mt. Stores. Hs/Rn2/LG13.3.29. We are sending into the Stores for despatch to The London Midland & Scottish Rly.Co., Chief Mechanical Engineers office, For the attention… | ||
| Scan025 | Visit from William C. Werry, an inventor of a new type of petrol engine. | ||
| View original record | S/W. (Experimental Dept.) ++++ Cx/Bly9/CM21.3.28. Re - William C. Werry. We had a visit from the above gentleman, who is the inventor of a new type of petrol engine, details of which you perhaps have… | ||
| Scan026 | Newspaper extract from the 'Westminster Gazette' about a new engine claiming to be the mightiest in the world. | ||
| View original record | Extract from the "Westminster Gazette," Thursday, 1st September, 1927. MIGHTIEST ENGINE IN THE WORLD. CLAIM OF BRITISH INVENTOR. TRAINS AT 140 MILES AN HOUR. What is claimed to be the fastest and most… | ||
| Scan027 | Letter to W.C. Werry regarding his petrol engine invention, requesting drawings or a model for assessment. | ||
| View original record | Expl: Dept: 44447 HS/Rs4/LG. 22nd. Mar. 1928. W.C. Werry Esq., 69 King William St., London E.C.4. Dear Sir, We have heard from our London people with reference to your Petrol Engine. We are quite… | ||
| Scan028 | Confirming direct communication with Mr. William C. Werry. | ||
| View original record | To Cx. from Hs/Rn. x4447 Hs/Rm3/LG22. 3. 28. Re. William C. Werry. With reference to Cx/Bly9/CM21.3.28. We are communicating with Mr. Werry direct. Hs/Rn. | ||
| Scan029 | Letter from engineer William C. Werry arranging a demonstration of his high-speed motor engine installed in a motorcycle. | ||
| View original record | WILLIAM C. WERRY, Engineer. PRIVATE ADDRESS: 55 HOLDENHURST AVENUE, GRANVILLE ROAD, N. FINCHLEY. c/o. BANK OF VICTORIA, LTD., 69, KING WILLIAM STREET, LONDON. E.C. 4. +4440 March 23rd 1928. Dear Sirs,… | ||
| Scan030 | Letter declining a demonstration of a motor-cycle engine but requesting performance data and mechanical construction details. | ||
| View original record | Expl: Dept: 4447 Hs/Rml/LG. 26th. Mar. 1928. W.C.Werry Esq., C/O Bank of Victoria Ltd., 69, King William Street, London E.C.4. Dear Sir, With reference to your letter of the 23rd. inst. for which we… | ||
| Scan031 | High cost of Bosch sparking plugs and recommending a sample be ordered before committing to a larger quantity. | ||
| View original record | To Lp. from Hs. c. to BLB: Y4454 Hsl/LG2.11.28: BOSCH SPARKING PLUGS. We have just been working out how much money it is going to cost to purchase 2 doz. Bosch sparking plugs at 22 marks each. It… | ||
| Scan032 | The arrangement to obtain Bosch sparking plugs for experimental testing. | ||
| View original record | S/W. Hs. X4454 To Hs. from Lp. c. to BHD. c. to Wcr. Lp4/Av/D6.11.28. Re: Bosch Sparking Plugs. With reference to Hs1/LG2.11.28, we have not placed an order for the special Bosch Plugs and in any case… | ||
| Scan033 | Progress and necessary improvements for the battery ignition system design. | ||
| View original record | X.434 H7/UB.08.12.19. To EN. from R. Copy to W. " " DY. " " H. " " CK. " " HS. X.3129. RE BATTERY IGNITION. X.3713. X.3714. X.939. I hope I am mistaken, but I hear that no progress has been made in… | ||
| Scan034 | Westinghouse's electrical work, sales figures, and the various uses of Bakelite-Micarta in automotive and naval applications. | ||
| View original record | Contd. Extract from X.1109-4 such purposes. Westinghouse Figures: The Westinghouse Co. can claim a great experience in electrical work, sharing as they do with the General Electric Co. the greater… | ||
| Scan035 | Comparing high-tension wiring cables from two different suppliers for the Goshawk engine. | ||
| View original record | X 4473 To EY/C. from EFC. EFC1/T9.12.22. X.4075 - H.T. WIRING FOR GOSHAWK With reference to comparative samples of H.T. cable from Messrs. Glover and Messrs. Helsby, we have tested these, and each… | ||
| Scan036 | Extract detailing a proposal for separating H.T. wiring for magneto and battery ignition systems to improve reliability. | ||
| View original record | 4473 X.4075. Extract from R6/M19.1.23. RE IGNITION. X.3485. For the sake of reliability, etc. I had imagined that the 2 sets of H.T. wiring should be in separate tubes, the magneto being below the… | ||
| Scan037 | Routing of the H.T. wire for the Goshawk II standby magneto ignition system and the design of a changeover switch. | ||
| View original record | 14473 To EY. from E. c. CJ. HS. El/M21.7.23. X. 3551 - GOSHAWK II. STANDBY MAGNETO IGNITION. X. 4075. We send you herewith drawing No. LeC.1744., shewing the method of carrying the H.T. wire from the… | ||
| Scan038 | The dispatch of design schemes for ignition wiring, torque reaction dampers, and a modified wheel case for the 40/50 chassis. | ||
| View original record | V 8570 E.A.C. R2/M13.10.23. To EY. from R. HS. c. CJ. BJ. S E C R E T. X.9770. X.9560. X.9950. X.4604. We have sent you this week the following schemes (complete designs) :- E.A.C. Ignition wiring,… | ||
| Scan039 | Secret memo discussing the manufacturing process for a bakelite moulding for ignition wiring. | ||
| View original record | X8560 SECRET. To EY. from E. c. to CJ. c. to Hs. E. A. C.2. E1/M27.11.24. IGNITION WIRING+ X.8550. In reply to your memo. By/C11/H251124., we called for a bakelite moulding on the original scheme and… | ||
| Scan040 | Proposed straight moulded ignition wire tube, referencing drawing No. LeC.1986 and seeking approval from Mr. Royce. | ||
| View original record | X8560 To BY. from E. c.c. to CJ. c.c. to Hs. SECRET E4/M22.1.25. E. A. C. IGNITION WIRE TUBE BOLTED TO DASHBOARD. X.6650. We send you herewith drawing No. LeC.1986, shewing a proposed straight moulded… | ||
| Scan041 | Instructions for tests on static induction effects with high-tension wiring in an insulating tube. | ||
| View original record | ROLLS-ROYCE LTD. INSTRUCTIONS. To: E7.6 Order No. WA 109 Customer's No. X 3714 Static Induction effects with E.A.C H.T. wiring in black fibre insulating tube. Tests have now been carried out in… | ||
| Scan042 | The observed effect of earthing one set of ignition wires. | ||
| View original record | ROLLS-ROYCE LTD. INSTRUCTIONS. 19 To Order No. (2) Customer's No. the effect of earthing one set of wires was observed in each case. With the battery ignition switched off and the magneto sparking,… | ||
| Scan043 | Instruction sheet and report on testing magneto and battery ignition spark gaps. | ||
| View original record | RR 330 (100 BKS) (SH57. 29-6-20.) MP 224359 ROLLS-ROYCE LTD. INSTRUCTIONS. To ______________ Order No. 3. Customer's No. ______________ | SPARK GAP NO. | MAXIMUM GAP ALLOWING REGULAR INDUCED SPARKS TO… | ||
| Scan044 | Instruction sheet detailing a test on spark gap distances and the effects of induced sparks. | ||
| View original record | RR 250(150 BKS.)SHST.28-9-20.)MP 284389 ROLLS-ROYCE LTD. INSTRUCTIONS. 19 To Order No. 4 Customer's No: SPARK GAP No. | MAXIMUM GAP ALLOWING REGULAR INDUCED SPARKS TO JUMP. 1 | .005" 2 | .004" 3 |… | ||
| Scan045 | Instructions for tests on static induction effects with a metal tube on ignition wires. | ||
| View original record | RR 239 (100 BKS) (SHD7.29-6-20.) MP 224350 X8560 ROLLS-ROYCE LTD. INSTRUCTIONS. To E.F.C. Order No. WA110 Customer's No. X 8560 X3714 19-2-1925 Tests for static induction effects with metal tube.… | ||
| Scan046 | Test report comparing induced spark lengths from magneto wires versus battery wire terminals. | ||
| View original record | RM 239 (150 BKS.) 18H57. 20-6-20. [MP 224388] ROLLS-ROYCE LTD. INSTRUCTIONS. To Order No. (2) Customer's No. 19 induced sparks at the terminals of the magneto wires were as follows:- No. Spark length… | ||
| Scan047 | Instructions and test results for induced spark lengths with battery and magneto wires. | ||
| View original record | RR 22A (100 BKS) (BH57.29-6-20.) MP 22435A ROLLS-ROYCE LTD. INSTRUCTIONS. To_________________________ 19 Order No. (3) _________________________ Customer's No. _________________________ insulated… | ||
| Scan048 | Instructions detailing an investigation into ignition spark characteristics with a condenser and an earthed tube. | ||
| View original record | ROLLS-ROYCE LTD. INSTRUCTIONS. To Order No. 4. Customer's No. 5 '010" 6 '010" With both ignitions working together there was a quite marked difference in the intensity of the sparks, these having the… | ||
| Scan049 | Instructions detailing tests on H.T. spark intensity and recommending the use of earthed metal tubes. | ||
| View original record | on sealing use fullest possible pressure ROLLS-ROYCE LTD. INSTRUCTIONS. 19 To Order No. Customer's No. In tests carried out some time ago, it was found that the H.T sparks obtained from the old short… | ||
| Scan050 | Investigation into the static induction effect on high-tension wires due to the synchronism of battery and magneto ignition sparks. | ||
| View original record | ER 536 (150 BKS) (SHS7. 29-6-20.) MP 224355 X8560 ROLLS-ROYCE LTD. INSTRUCTIONS. To E.Y.B. 26-2-1925 X3129 Order No. WA 112 Customer's No. X8560 Investigation of the possibilities of increased static… | ||
| Scan051 | Instruction sheet detailing observations on induced sparking across ignition system gaps under different conditions. | ||
| View original record | RR 228 (100 BKS) [AH97-29-6-20.] MP 224398 ROLLS-ROYCE LTD. INSTRUCTIONS. 19 To Order No. (2) Customer's No. of 5 minutes, would avoid the passage to earth of induced sparks from the terminal of the… | ||
| Scan052 | Instructions and observations from a test on battery ignition polarity and spark gaps. | ||
| View original record | RR 239 (100 BKS.) (6H57.28-6-20.) MP 224399 ROLLS-ROYCE LTD. INSTRUCTIONS. 19 To Order No. 3. Customer's No. (2). The last test was carried out with Battery ignition polarity normal, and so secondly… | ||
| Scan053 | Instructions regarding an undesirable induced effect in an engine's dual ignition system. | ||
| View original record | RR 239(150 BKS.)(SHS7.20-5-20.) MP 224359 ROLLS-ROYCE LTD. INSTRUCTIONS. To __________ 19 Order No. 4. Customer's No. __________ From these figures it will be seen that there is evidently an increased… | ||
| Scan054 | High voltage tests comparing Maconite H.T. and Glover's ignition cables. | ||
| View original record | EFC. WB.93. X8561 7.6.26. HIGH VOLTAGE TESTS OF IGNITION CABLE. X.86. X.B60. The object of this test was to ascertain the respective merits of Maconite H.T. cable and our present standard (Glover's)… | ||
| Scan055 | Instruction to test new wire samples and report back on the findings, noting that the black enamelled version seems better. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To E.T.C. 7-1-1927 Order No. Customer's No. X86 Herewith some samples of wire Ms. has asked me to try. As far as we are… | ||
| Scan056 | From EFC forwarding an assistant's report on wires and confirming their suitability for a Mr. Brock. | ||
| View original record | To Ms. from EFC. X86 EFC6/T26.1.27. In response to your telephone enquiry, herewith please receive copy of my assistant's report on the wires in question, from which you will see that there does not… | ||
| Scan057 | Instruction regarding the examination of wire samples from British Insulated Wires for potential use in ignition coils. | ||
| View original record | RR 236 (150 BKS.) (D3 431-8-12 24) MP 306975 X 4473 1 ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.7.b. Order No.: WC2 Customer's No.: (Helsby) 26-1-1927 British Insulated wires. We have examined the samples… | ||
| Scan058 | Ignition misfiring issue caused by the proximity of high and low tension wires. | ||
| View original record | X8560 To BY/RD. from EFC. c. Mx. EFC3/T8. 8. 27. IGNITION WIRING. On ignition wiring erection it is possible for one of the L.T. ignition wires which passes through the redmanol right angle bend,… | ||
| Scan059 | Request to renew H.T. and L.T. wires on vehicle 8-EX due to perished rubber and a mysterious misfire. | ||
| View original record | To HHC. from EFC. C.K./A.H.L. X8160 EFC2/T14.11.27. Will you please have the H.T. wires on 8-EX renewed, as particularly on the B.I. igx side the rubber has perished and a mysterious misfire which we… | ||
| Scan060 | Request to compare a sample of High Tension Ignition Cable from a new supplier against an existing one. | ||
| View original record | EFC. X86 ROY/GEA3/EB28-11-27. Herewith a sample of 72/.0076 High Tension Ignition Cable received from The British Insulated Cables Ltd. as used on chassis production. Will you please advise whether… | ||
| Scan061 | Comparative tests and costs of H.T. ignition cables from suppliers Glover, Maconite, and Helsby. | ||
| View original record | To ROY. from EFC. X8561 EFC3/T8.12.27. H.T. IGNITION CABLE. XJ860 We hope shortly to be making a full technical report of the comparative tests of Glover and Maconite H.T. cable. For this purpose we… | ||
| Scan062 | Laboratory report on comparative tests between Maconite and Glover H.T. ignition wires. | ||
| View original record | X8560 EFC/T8.12.27. MACONITE WIRES. X3860 We have now in the laboratory for comparative test and report - (1) A complete set of Glover H.T. cable used on battery ignition on 8-EX, having run approx.… | ||
| Scan063 | Durability of standard H.T. ignition cables and considering a superior experimental alternative. | ||
| View original record | To Hm. from EFC. X8580 EFC5/T8.12.27. H.T. IGNITION CABLE. We should be glad to have your impression concerning the durability of our standard H.T. ignition cable on chassis. We think that you may… | ||
| Scan064 | Letter from an electrical wire supplier regarding cracking issues with H.T. Ignition Wire. | ||
| View original record | X856p COMMUNICATIONS SHOULD BE ADDRESSED TO THE COMPANY, NOT TO INDIVIDUALS. ALL OFFERS AND CONTRACTS ARE SUBJECT TO APPROVED REFERENCES, BREAKDOWN OF MACHINERY, FIRE, LOCKOUTS, STRIKES, ACT OF GOD OR… | ||
| Scan065 | Follow-up memo requesting remarks on the subject of H.T. Ignition Cable. | ||
| View original record | To Hm. from EFC. X8560 EFC2/T5.1.28. H.T. IGNITION CABLE. Referring to the above, we do not appear to have had a reply to our EFC5/T8.12.27. We should be pleased to have your remarks on this subject.… | ||
| Scan066 | Failure of H.T. Ignition Cables due to heat and the need for a more durable replacement. | ||
| View original record | X8560 EFC. Hm/WW3/EW7.1.28. Glover(Stn) H.T. Ignition Cable. Kindly note the following, in reply to your EFC2/T5.1.28 - We get little or no complaint of H.T. Cables failing, but we realise how quickly… | ||
| Scan067 | Comparing prices for 'Maconite' and 'Glover's' H.T. ignition cables. | ||
| View original record | X8561 EFC. from ROY. ROY/GEA1/EB24-1-28. 2 H.T. IGNITION CABLE. X3860 X.8650/1 Referring to your memo ref: EFC3/T8.12.27, we have now received comparative prices of "Maconite" 7 m/m H.T. Wire and… | ||
| Scan068 | Follow-up memo requesting a report on the testing of H.T. Ignition Cables. | ||
| View original record | EFC. X8561 ROY/GEA5/EB2-2-28. H.T. Ignition Cable. We confirm our memo ref: ROY/GEA1/EB24-1-28, and shall be glad to hear if you are now in a position to give us a report on the various Cables you are… | ||
| Scan069 | Letter of complaint to a supplier regarding the poor quality of a recently delivered High Tension Cable. | ||
| View original record | X8560 COPY Ref: ROY9/MGL.5.28. Messrs. W.T. Glover & Co.Ltd., Trafford Park, Manchester. May 1st. 1928. Dear Sirs, We regret it should be necessary to complain of the quality of the High Tension Cable… | ||
| Scan070 | The laboratory testing and suitability of Maconit H.T. cable for chassis wiring. | ||
| View original record | To R. from EFC. c. BJ. E. c. Da. By. c. Mor. Roy. X860 EFCL/TE.5.26. MACONITE H.T. CABLE FOR CHASSIS. X860 Originally we received a small sample of such cable. We made certain laboratory tests on… | ||
| Scan071 | Report comparing the performance of Maconite and standard Glover insulated cables for high tension wiring. | ||
| View original record | Contd. -2- EFC1/T2.5.26. appear to result in any disadvantage when the wire is used as H.T. wire on the cars. It will be seen that we have ourselves found this Maconite material to be very good in… | ||
| Scan072 | Continued report on comparative testing of different H.T. cables, including 'Gloverite', 'Maconite', and 'Helsby' types. | ||
| View original record | EFCH/T2.5.28. -3- Contd. opinion on the new material. They said they could give us the same sort of thing, but thought we had not wanted anything better than we had got. They said they could give us… | ||
| Scan073 | The condition of various H.T. ignition cables after extensive mileage tests. | ||
| View original record | EFCL/T2.5.28. -4- Contd. (1) A complete set of Glover H.T. cable used on battery ignition on 8-EX, having run approximately 15,000 miles. (2) A sandwich set of Maconite and Glover H.T. cable, used on… | ||
| Scan074 | Results of electrical breakdown tests on different cable samples, concluding the superiority of Maconite cable. | ||
| View original record | Contd. -5- Following the above examination the electrical breakdown tests were made. Each sample of cable (in each case the sample used was the one of its group which appeared by inspection to be the… | ||
| Scan075 | The quality and testing of H.T. ignition cables, recommending the standardisation of Maconites cable. | ||
| View original record | -6- Contd. As previously referred to, Messrs. Glover's represent- ative stated that the quality of the H.T. ignition cable we are using as standard was not the best possible. Hence their submission of… | ||
| Scan076 | Quality testing of Glover H.T. cable and comparing it with Maconlite cable. | ||
| View original record | X8560 To ROY. from EFC. c. BY. EFC4/T3.5.28. X3860 Samples of Glover H.T. cable from recent delivery were submitted to us for test because the external appearance indicated a rather poor Quality.… | ||
| Scan077 | Test report on two faulty samples of Glover H.T. cable which failed under high voltage. | ||
| View original record | RR 238 (180 BKS.) (DB 461-8-12 44) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.7.C. Order No.: WC101 Customer's No.: Re samples of Glover H.T. cable submitted by ROY/GEA for test. The two samples… | ||
| Scan078 | Request for comparative prices of various high-tension (H.T.) cables, including Maconitem, Glover, and Gloverite wires. | ||
| View original record | To Roy. from EFC. x8561 EFC5/T9.5.28. H.T. CABLE. At our request you gave us in your Roy/GEA1/EB24.1.28 comparative prices of Maconitem and standard Glover H.T. wire. It would also be of interest to… | ||
| Scan079 | Letter from W.T. Glover & Co. Ltd. regarding tests on 7mm high tension wire and recommending an alternative type. | ||
| View original record | X8560 W.T. GLOVER & CO.LTD. MANCHESTER. ROY/GEA7/EELO.5.28 ---"SM"--- May 25th 1928. Messrs. Rolls-Royce Ltd., Derby. Dear Sirs, With further reference to your letter of the 10th inst. regarding the… | ||
| Scan080 | Quotation from W.T. Glover & Co. Ltd for various high tension ignition flexible cables. | ||
| View original record | X8561 COPY. W.T. GLOVER & CO.LTD+, MANCHESTER. May 25th. 1928. Roy/GEA9/EB10528. E.78890. Messrs. Rolls-Royce Ltd., Derby. Dear Sirs, QUOTATION In reply to your enquiry of the 10th inst., we have… | ||
| Scan081 | Quotation for cable from W.T. Glover & Co. Ltd. detailing an alternative price and payment terms. | ||
| View original record | -2- Alternatively. (1d) Similar cable to item 1b. but ditto. at £13.15.0 per 1000 yards. The prices quoted include free delivery your Works and are for payment - Cash Monthly less a discount of 2½% or… | ||
| Scan082 | Comparing Maconite, Glover, and Gloverite electrical cables for heat resistance and price. | ||
| View original record | X8560 To R. from Hs. Hs2/LG4. 6. 28. MACONITE CABLE. X3860 From tests we have carried out we are satisfied that Maconite cable is an improvement over the present standard Glover. We have not been free… | ||
| Scan083 | The dangerous proximity of the magneto high tension lead to the exhaust pipe for the F.2.B chassis wiring. | ||
| View original record | By Hs. from Mx. X. 8580 Mx8/T28.6.28. F.2.B. Chassis Wiring The magneto high tension lead to No.1 Cylinder is dangerously close to the exhaust pipe. We can of course keep it clear of the pipe by… | ||
| Scan084 | Letter from W.T. Glover & Co Ltd following up on high tension ignition wire samples and a subsequent quote. | ||
| View original record | X8561 W.T. GLOVER & CO LTD. TRAFFORD PARK, MANCHESTER. "SM" E.78890. July 20th 1928. Messrs. Rolls-Royce Ltd., DERBY. Dear Sirs, On January 17th last we had the pleasure of sending you two 100 ft.… | ||
| Scan085 | Ongoing testing of Gloverite and Super-Glover H.T. cables. | ||
| View original record | X8561 To Roy. from EFC. EFC./T21.7.28. GLOVERITE AND SUPER-GLOVER H.T. CABLE. With reference to the enquiry arising out of Messrs. Glovers' letter of the 20th inst., which we return herewith, our… | ||
| Scan086 | High-pressure testing of chassis H.T. cable insulation. | ||
| View original record | To Sft/Mr. Brock. Y.8560 EFC5/T1.10.28. CHASSIS H.T. CABLE. We think it would be a good plan to receive from you a sample length of H.T. cable cut from each coil of cable that is utilised on… | ||
| Scan087 | Confirming the handover of Helsby make H.T. cable for the 12-EX wiring system. | ||
| View original record | X8561 To RHC. from EFE. EFC7/T1.10.28. CHASSIS H.T. CABLE OF HELSBY MAKE. This is to confirm that we have handed to you a coil of cable of the above make so that you can make up a sandwich system of… | ||
| Scan088 | Requesting an update on the practical test results for Gloverite and Super Glover H.T. Cable samples. | ||
| View original record | X8561 EFC. from ROY. ROY14/MG12.10.28 Gloverite and Super Glover H.T.Cable Reverting to your Memo EFC1/T21.7.28, relating to two sample lengths of High Tension Ignition Wire (marked respectively "A"… | ||
| Scan089 | The physical, chemical, and road testing of Gloverite and super-Glover H.T. cables compared to Maconites cable. | ||
| View original record | To Roy. from EFC. X8561 EFC1/T15.10.28. GLOVERITE AND SUPER-GLOVER H.T. CABLE. The position in respect of these is that (1) We have made our physical and chemical tests. (2) We have not yet been able… | ||
| Scan090 | General specification of tests for a chassis high-tension ignition cable. | ||
| View original record | X.4473 23.10.28. GENERAL SPECIFICATION OF TESTS ON CHASSIS H.T. IGNITION CABLE. A. Physical & Chemical Tests of the Dielectric. (1) Immerse in petrol for 100 hours. Note effect and increase in weight,… | ||
| Scan091 | Test procedures for ignition cables, including voltage, heat, and chassis endurance tests. | ||
| View original record | -2- Contd. to judgement as to the rapidity with which the cracking effect is produced. (7) A sample length of cable should be bent into a loop about 1 1/2" internal diameter, and the loop made to rest… | ||
| Scan092 | Ignition wire tubing materials to mitigate heat exposure and prevent static induction. | ||
| View original record | X7560-4473 To R. & E. from EFC. c. BJ. Da. c. Ev. Wor. EFC2/T24.10.28. SS. IGNITION WIRE TUBING. X3714 On the SS. engine we feel a little concerned with the exposure of one of the ignition wire tubes… | ||
| Scan093 | Continued discussion on engine wiring phenomena and a suggestion to use earthed bakelite covered metal tubes. | ||
| View original record | -2- Contd. of sufficient quantity to enable that wire to give a spark at its plug. It appears, however, that we do still occasionally get such an effect even when the two groups of wires are in… | ||
| Scan094 | Material and arrangement for 'SS' ignition wire tubing. | ||
| View original record | X4473 EFC from R. R4/M26.10.28. "SS" IGNITION WIRE TUBING. V3713 In reply to your EFC2/T24.10.28: (1) We have done the best we can with the space and arrangement of pipes. (2) There is no need for… | ||
| Scan095 | Use of metal versus bakelite tubing for ignition wires on an SS experimental chassis. | ||
| View original record | To EY. from EFC. X4473 EFC1/T1.11.28. SS. IGNITION WIRE TUBING X3714 Further to my EFC2/T24.10.28 addressed to R. (copy to yourself), I have now received a note from R. of which the attached is a… | ||
| Scan096 | Comparative tests, suitability, and pricing of different ignition wiring cables. | ||
| View original record | X4473 To BY. fro.m EFC. EFC3/T7.11.28. SS. IGNITION WIRING. We have got so far enough with our tests of Gloverite and Super-Glover H.T. cable (last reported in our EFC4/T2.5.28) to know that Gloverite… | ||
| Scan097 | Letter from W.T. Glover & Co. Ltd. requesting the results of practical tests on high tension ignition wire samples. | ||
| View original record | X4473 W.T. GLOVER & CO. LTD. TRAFFORD PARK, MANCHESTER. February 4th 1929. FOY15/MG23.7.28. "SM" E.78890 Messrs Rolls-Royce Ltd., DERBY. Dear Sirs, High tension ignition wire. May we refer you to your… | ||
| Scan098 | Comparing the suitability and cost of Gloverite and Super-Glover H.T. cables. | ||
| View original record | ROY. from EFC. X4473 EFC2/T8.2.29. GLOVERITE & SUPER-GLOVER H.T. CABLE. With reference to the attached, our tests have shown that Gloverite is not at all suitable and is not as good, we find, as the… | ||
| Scan099 | H.T. cable, confirming satisfaction with the current standard and declining to test a sample from E. Kalker & Co. | ||
| View original record | ROY. from EFC. X.4473 EFC7/LG19. 2. 29. H.T. CABLE. E. Kalker & Co. With reference to the attached correspondence now returned - our present standard (Maconite) H.T. cable is quite satisfactory for… | ||
| Scan100 | Query regarding the ignition wiring specifications for S.S. chassis. | ||
| View original record | X4473 RHC. from EFC. EFC7/T26.3.29. S.S. IGNITION WIRING. Are you able to say if any of the S.S. chassis were fitted with sandwich systems of standard Maconite and Super-Clover H.T. cable, as… | ||
| Scan101 | Rebuilding chassis 18-EX to test a sandwich system of H.T. wiring over 10,000 miles. | ||
| View original record | X4473. URGENT. RHC/HPS. from EFC. c. Hs/AJL. EFC1/D24.5.29. H.T. WIRING FOR CHASSIS 18-EX In re-building this chassis we would like to incorporate a sandwich system for H.T. wiring comprising the 3… | ||
| Scan102 | Observation of perished HT wiring due to exhaust heat on chassis 22EX, with a query about adding shielding. | ||
| View original record | RR 238 (150 BKS.) IOB 461-8-12-24) MP 306975 X4473. ROLLS-ROYCE LTD. INSTRUCTIONS. To: E 7 C Order No. WD66 Customer's No. X Date: 27-5-1929 H.T. wiring on S.S. chassis. We observed in the log book of… | ||
| Scan103 | Query regarding perished magneto H.T. wiring on an S.S. chassis due to exhaust heat. | ||
| View original record | X4473 By. from EFC. EFC5/AD3.6.29. MAGNETO H.T. WIRING ON S.S. CHASSIS. It was observed on the 10,000 mile test chassis 22-EX, that at a mileage of 3760 the magneto H.T. wires were badly perished and… | ||
| Scan104 | Heat damage to H.T. wiring tubes from the exhaust pipe and considering bakelite or shielded alternatives. | ||
| View original record | X4473 By. from EFC. c. By/CS. EFC1/AD5.6.29. X.4473. SS. H.T. WIRING TUBES AND WIRING. On the S.S. chassis we still have Vulcanite covered metal tubes for both battery and magneto ignition. Apparently… | ||
| Scan105 | Instructions for the arrangement of H.T. ignition wiring sandwich systems on experimental S.S. chassis. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8 12-24) MP 306975 X4473 ROLLS-ROYCE LTD. INSTRUCTIONS. To E7C Order No. WD67 Customer's No. X4473 X44362 H.T. ignition wiring sandwich systems on experimental S.S. chassis.… | ||
| Scan106 | Instruction sheet regarding the unsatisfactory arrangement of the magneto H.T. wire on the 20HP chassis. | ||
| View original record | ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.7.C Order No.: WD68 Customer's No.: Magneto H.T. wire on the 20HP chassis. The arrangement of the H.T. wire from the Watford ROI magneto is we consider… | ||
| Scan107 | Instructions for re-routing an H.T. wire to be more unobtrusive and save time on fittings and mouldings. | ||
| View original record | RR 239 (150 BKS.) (OB 401-9-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. (2) To_____________________19__ Order No. WD68 (contd) Customer's No.____________ this H.T wire up from the crankcase at the… | ||
| Scan108 | Issues with the 20 HP chassis magneto high tension wire and proposing an alternative routing. | ||
| View original record | X 4473. To R. E. } from EFC. C. Sg. C. Ev. EFC3/AD6.6.29. X.4473.20 H.P. CHASSIS MAGNETO HIGH TENSION WIRE. We are of the opinion from the results of observations made on the condition of this wire on… | ||
| Scan109 | Routing of the H.T. magneto wire on a 20HP chassis to avoid mutual induction. | ||
| View original record | X4473 EFC. FROM E. E3/M10.6.29. 20HP. CHASSIS - H.T. MAGNETO WIRE. Re. your suggestion to run this wire through the wiring tube in company with the leads to the plugs, is there no danger of mutual… | ||
| Scan110 | The routing of the H.T. magneto wire for a 20 HP chassis to avoid induced sparks. | ||
| View original record | X4473 To: from EFC/HEW. [To: is struck through] C.C. SG. [C.C. SG. is struck through] EFC is absent EFC/HEW3/AML1.6.29. 20 HP. Chassis - H.T. Magneto Wire. We have received your E3/M10.6.29, and note… | ||
| Scan111 | Information on a new cable from the Metropolitan Electric Cable Company. | ||
| View original record | X4473 To EFC. from ROY. ROY6/MC26.5.29 Have you any information as to the Cable which is being put on the market by the Metropolitan Electric Cable Company, as per communication attached? ROY… | ||
| Scan112 | Responding to an inquiry about 'Rubite' cables. | ||
| View original record | X4473. Roy. from EFC. EFC2/AD27.6.29. In answer to your Roy6/MG26.6.29, we have not previously heard of 'Rubite' cables. So far as we know there is no complaint of our present cables, but satisfaction… | ||
| Scan113 | Electrical experiments record sheet tracking the mileage of H.T. cables. | ||
| View original record | X4473. H.T. cables of "Helsby" make sandwiched with std "Maconite" ELECTRICAL EXPERIMENTAL RECORD SHEETS. Date on. | Location. | Date off. | REMARKS. | Miles reading Start. | Miles reading Finish. |… | ||
| Scan114 | Extract from a report on the 1929 Olympia Motor Show regarding H.T. ignition wire protection methods. | ||
| View original record | X4473. 21.10.29. MOTOR SHOW OLYMPIA 1929. Extract from H.E.West's report WD.85. The majority of the high class cars take the H.T. ignition wires on the exhaust side through a neat and inexpensive… | ||
| Scan115 | Test log sheet for an HT ignition wiring sandwich system. | ||
| View original record | X4473. ELECTRICAL TEST SHEET Item: HT ignition wiring sandwich system of "Maconite" "Super Glover" & "Helsby" | Date on. | Location. | Date Off. | REMARKS. | Miles Start. | Miles reading Finish. |… | ||
| Scan116 | Experimental record sheet for an H.T. ignition wiring sandwich system. | ||
| View original record | ELECTRICAL EXPERIMENTAL RECORD SHEET H.T. ignition wiring sandwich system of "Maconite" "Super Glover" & "Helsby" Date on: 6-6-29 Location: 21EX Remarks: Fitted to 21EX Miles reading Start: 5498 Date… | ||
| Scan117 | Instruction sheet detailing the results of bench and chassis tests on various H.T. ignition cables. | ||
| View original record | RR 238 (150 BKS.) (OB 461-9-12-24) MP 306975 X. 4473 ROLLS-ROYCE LTD. INSTRUCTIONS. To E7.C. Date 26 - 11 - 1929 Order No. WD92 Customer's No. X4473 Chassis. H.T ignition cables. We have now completed… | ||
| Scan118 | The results of chemical tests performed on various electrical cable insulation materials. | ||
| View original record | ROLLS-ROYCE LTD. INSTRUCTIONS. (2) To_______________________19___ Order No. WD 92 (contd) Customer's No.__________ Section A. Chemical tests etc. ① Effect on "Gloverite" - swollen, conductor loosened.… | ||
| Scan119 | Test results for inflammability and electrical breakdown on various material samples. | ||
| View original record | RR 238 (150 BKS.) (DB 451-B.12 24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. (3) To _________ _________ 19__ Order No. WD92 (contd) Customer's No. _________ Effect on "Helsby" — slight softening. " "… | ||
| Scan120 | Test results for electrical breakdown of various materials under high voltage. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. (4) To_________________________19__ Order No. WD92 (contd) Customer's No.___________ "Helsby" - Broke down at 17000 volts… | ||
| Scan121 | The 10,000-mile chassis test results for various electrical cables. | ||
| View original record | RR 228 (150 BKS.) (DD 481-8 12 24) MP 206975 ROLLS-ROYCE LTD. INSTRUCTIONS. (5) 19__ To Order No. WD92 (contd) Customer's No. Section C. Chassis tests. ⑧ Samples of "Gloverite" and "Super Glover" were… | ||
| Scan122 | Test results of various electrical cables, detailing their performance and breakdown voltages. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. (6) 19 To Order No. WD 92 (contd) Customer's No. and cracked badly on three of the six cables whilst the "Maconite" except… | ||
| Scan123 | Continued report on the electrical breakdown voltage testing of 'Maconite' and 'Glovite' cable samples. | ||
| View original record | ROLLS-ROYCE LTD. INSTRUCTIONS. (7) 19 To Order No. WD 92 (contd) Customer's No. make one sample broke down after 1/2 min at 19300 volts R.M.S and the other after 2 mins at same voltage whilst both the… | ||
| Scan124 | Continued instruction sheet comparing the performance and durability of different electrical cables. | ||
| View original record | RR 238(150 BKS.) (DB 461-8 12.24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. (8) 19 To Order No. WD 92 (contd) Customer's No. performance when new, it rapidly deteriorates under service conditions and… | ||
| Scan125 | Instruction comparing the quality and usability of 'Super Glover' and 'Slovente' cables against the standard 'Maconite' cable. | ||
| View original record | RR 238 N150 BKS.) (OB 401-9 12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. (9) To _________ Order No. WD 92 (contd) Customer's No. _________ The "Super Glover" we consider to be a good grade of cable… | ||
| Scan126 | Effects of exhaust heat on Phantom H.T. wiring tubes. | ||
| View original record | X4473. By. from EFC. c. Mx. EFC4/AD5.12.29. X.4473. PHANTOM H.T. WIRING TUBES. We should be pleased to know if you have yet been able to give attention to the matter of the effects of exhaust pipe… | ||
| Scan127 | Comparative tests of various H.T. ignition cables for the chassis. | ||
| View original record | X4473. To R. from EFC. c. Eg. c. Wor. E. c. Da. Ey. EFC4/AD6.12.29. X.4473. CHASSIS H.T. IGNITION CABLES. X.6009. Just previous to the standardisation of Maconite H.T. ignition wires for the chassis… | ||
| Scan128 | Test results for the physical and chemical properties of various dielectric cable materials. | ||
| View original record | EFCA/ADS.12.29. contd. -2- (A) Physical and chemical tests of the dielectric. (B) Electrical tests (C) Chassis and subsequent tests. The details of the tests under Section (A) are as follows :- (1)… | ||
| Scan129 | Test results on the effects of heat and voltage breakdown for various cable insulation materials. | ||
| View original record | EFC4/AD6.12.29 contd. -3- Effect on Super Clover - none appreciably " " Helsby - slight softening. " " Maconite - none appreciably. All four samples ignited with the same degree of moderate… | ||
| Scan130 | Test results for cracking effect and voltage breakdown on four types of cable insulation. | ||
| View original record | -4- EFC4/AD6.12.29 contd. (6) The cracking effect on the insulation brought about by high voltage oscillatory brush discharges passing along the surface of the insulation to earthed clips thereon. The… | ||
| Scan131 | The endurance and electrical breakdown testing of various cable types on a Phantom I chassis. | ||
| View original record | -5- "Samples of Gloverite and Super Glover were run over 10,000 miles on experimental Phantom I chassis 12-EX, and samples of Maconitem and Helsby were run a second 10,000 miles test on the same… | ||
| Scan132 | Report comparing the performance and durability of different electrical cables, concluding Maconite is superior. | ||
| View original record | EFC4/AD6.12.29 contd. -6- cables were tested and in the case of the former make, one sample broke down after 1/2 min. at 19,300 volts R.M.S. and the other after 2 mins. at the same voltage, whilst… | ||
| Scan133 | Report comparing Maconite, Gloverite, and Super Clover H.T. cables, including test results on Phantom I and Phantom II chassis. | ||
| View original record | -7- and reasonably as good as the Maconite. The surfaces however, of both Gloverite and Super Clover are rough as compared with Maconite which makes them difficult to draw through the tubes and to fit… | ||
| Scan134 | Heat damage to H.T. wires near the exhaust, suggesting shielding and the use of varnished cambric covered Maconitem cable. | ||
| View original record | EFC4/ADS.12.29. contd. -8- We know with a fair degree of certainty that this would apply equally with H.T. wires of Super Glover type. The wires are particularly affected where they pass through the… | ||
| Scan135 | Alternative ignition wire tubing materials, including metal and bakelite, for the Phantom II. | ||
| View original record | To R. from EFC. c. Sg. c. Ev. X4473. EFC1/AD9.12.29. X.6020. PHANTOM II IGNITION WIRE TUBING X.3714. X.6009. X.4473. In connection with the suggested use of H.T. wires with varnished cambric covering… | ||
| Scan136 | Specification for H.T. Maconite covered wire. | ||
| View original record | X4473. 11.12.29. X. 3860. SPECIFICATION OF PRESENT STANDARD X. 4473. H.T. MACONITE COVERED WIRE. Conductor - single. 70/.0076 tinned copper. Dielectric - Maconite only. Maximum outside diameter -… | ||
| Scan137 | General specification of tests on a chassis H.T. ignition cable. | ||
| View original record | X4473 16.1.30. GENERAL SPECIFICATION OF TESTS ON CHASSIS H.T. IGNITION CABLE. A. Physical & Chemical Tests of the Dielectric. (1) Immerse in petrol for 100 hours. Note effect and increase in weight,… | ||
| Scan138 | Page detailing a series of electrical and durability tests for cables, including insulation and chassis trials. | ||
| View original record | -2- immersed in water for 4 hours. In this condition the cable should be tested for breakdown, the breakdown voltage (if attained) being noted. (6) Observe the cracking effect on the insulation due to… | ||
| Scan139 | Cover note regarding a letter and sample of 'Herculacker' Cables from The Concordia Electric Wire Co. Ltd. | ||
| View original record | X4473. EFC. ROY/MS10/P.6.2.30. H.T. Wiring. General Chassis We attach hereto a letter we have received from The Concordia Electric Wire Co. Ltd., enclosing sample of Concord "Herculacker" Cables. This… | ||
| Scan140 | Request to make up 12 lengths of standard H.T. cable with a standard Chater-lea terminal. | ||
| View original record | X4473. Sft/Mr Brock. from EFC. EFC3/AD7.2.30. Will you kindly make up for us 12 lengths of Std. H.T. cable 2 ft. 1 in. long with a standard chater-lea terminal at one end. EFC. O/No. 735. | ||
| Scan141 | Reminder to Mr Brock from EFC regarding a request for standard H.T. cable. | ||
| View original record | X4473. Sft/Mr Brock. from EFC. EFC3/AD26.2.30. May we remind you that we are awaiting lengths of standard H.T. cable as asked for in our EFC3/AD7.2.30. EFC. | ||
| Scan142 | Test results for Maconite Chassis H.T. Ignition Cable samples. | ||
| View original record | X4473. EFC. 14.3.30. X.3860. MACONITE CHASSIS H.T. IGNITION CABLE. X.4473. Six samples of the above submitted for test from production have successfully withstood 19,300 volts R.M.S. for 30 mins.… | ||
| Scan143 | Defining the standard lengths of H.T. test leads for various ignition tests. | ||
| View original record | X4473 EFC. 15.3.30. X.4473. X.4436. H.T LEADS USED FOR VARIOUS IGNITION TESTS. We have now fixed upon the following standard lengths of H.T. test leads based on the maximum lengths as shown on the… | ||
| Scan144 | Recommendation to use Super Glover H.T. cable as an alternative to Maconite H.T. cable. | ||
| View original record | X4473. 24.6.30. X.4473. SUPER GLOVER H.T. CABLE X.3860. In the event of failure of supply of Maconite H.T. cable, it is recommended that Glover super H.T. cable be utilised. EFC. | ||
| Scan145 | Experimental record sheet for testing all-Bakelite wiring tubes on a Phantom II engine. | ||
| View original record | X4473. ELECTRICAL EXPERIMENTAL RECORD SHEETS. All Bakelite wiring tubes for Phantom II engine. | Date on. | Location. | Date off. | Remarks. | Miles reading Start. | Miles reading Finish. | Miles… | ||
| Scan146 | Request to replace the H.T. wiring on chassis 24-EX with standard Maconite H.T. cable. | ||
| View original record | X4473 To RHC. from EFC. c. Hs/GWH. EFC9/ADL8.8.30. X.4473. H.T. WIRING ON 24-EX. Will you please arrange for this to be replaced, when rebuilding the chassis, with standard Maconite H.T. cable.… | ||
| Scan147 | H.T. wiring tubes on the Phantom II chassis being damaged by heat from the exhaust pipe and the subsequent modifications. | ||
| View original record | X4473 COPY. Rm. or GWH. c. Wor. c. EP. 7.11.30. CHASSIS TROUBLES AND CUSTOMERS' COMPLAINTS. H.T. Wiring Tubes - Phantom II. Four of these were reported in Quarterly Report and is peculiar to the… | ||
| Scan148 | Proposal for modifying the high-tension wiring on a 40/50 HP (Phantom II) engine to prevent damage from heat. | ||
| View original record | X4473. BY/CB. BY/BB. c. Hs/Rm. BYL/G.11.12.30. 40/50 HP. (PHANTOM II). HIGH TENSION WIRING. F. has been on the telephone to me and outlined the following scheme as representing WW's proposal for… | ||
| Scan149 | Cross-reference note regarding H.T. wiring and H.T. wiring tubes. | ||
| View original record | X.4473. 31.12.30 For further matter relating to H.T. wiring and H.T. wiring tubes (general) see X.6117. | ||
| Scan150 | Letter from The De Lavaud Holdings Corporation discussing difficulties with a differential for a 20 HP car. | ||
| View original record | Telephone Nº ROYAL 1837 Telegraphic Address LAVAUDAL, LONDON. Y4474 The De Lavaud Holdings Corporation Limited. ENGINEERS. Directors O. C. HANS HAMILTON. D. SENSAUD DE LAVAUD. W. A. BISHOP. H. L.… | ||
| Scan151 | Letter regarding a design submission, with a handwritten follow-up note about a differential's performance. | ||
| View original record | I should like to have your remarks on this subject and if you agree perhaps you would be good enough to inform your company what we propose in order that arrangements may be made for fitting. In the… | ||
| Scan152 | Letter from De Lavaud Holdings Corporation promoting their Free Wheel Differential device. | ||
| View original record | Telephone No ROYAL 1937 Telegraphic Address LAVAUDAL, LONDON. The De Lavaud Holdings Corporation, Limited. ENGINEERS. Directors: G. C. HANS. HAMILTON. D. SENSAUD DE LAVAUD. R. A. BISHOP. H. L.… | ||
| Scan153 | Request to obtain mathematical papers from Mr. Sensaud de Lavaud regarding steering wobbles. | ||
| View original record | HS/RM. FROM DA. X4474 DA3/M18.9.28. We should like to get the mathematical papers of Mr. Sensaud de Lavaud dealing with steering wobbles. We are not sure whether they were included in the packet of… | ||
| Scan154 | High-speed wobbles and proposing two experimental tests to reduce them. | ||
| View original record | To DA. from Hs/Rn. Hs/RnL/LG19.9.28. With reference to DA3/M18.9.28. We are returning to you herewith all the literature that we have on high speed wobbles by Mr. Sensaud de Lavaud. The most useful… | ||
| Scan155 | Proposing two experimental tests to address high-speed wobbles, or 'shimmy', based on literature from Mr. Sensaud de Lavaud. | ||
| View original record | To DA. from Hs/Rm. Hs/Rml/LG19.9.28. +132 Y832 Y235 With reference to DA3/M18.9.28. We are returning to you herewith all the literature that we have on high speed wobbles by Mr. Sensaud de Lavaud. The… | ||
| Scan156 | Technical letter discussing front axle modifications to improve stability by reducing wobbling and shunting. | ||
| View original record | Hs/Rm. from DA. c. to BY. X4474 X.4474 X.7420 DAL/M21.9.28. Thank you very much for your Hs/RmL/LG19.9.28. and for the literature about Mr. Sensaud de Lavaud's inventions. We will retain this for the… | ||
| Scan157 | Four potential methods for improving vehicle acceleration. | ||
| View original record | Hs. from R. +4474 R2/M16.10.28. IMPROVED ACCELERATION. X.1725 X.4550 X.4474 X.523 We are considering 4 ways of meeting the increased acceleration problem with cars, such as :- For ease of { 1.… | ||
| Scan158 | Letter to De Lavaud Holdings regarding the potential trial of their differential in a 20 HP car. | ||
| View original record | 44474 Expl: Dept: Hs/Rnl/LG. 24th. Oct. 1928. Messrs. The De Lavaud Holdings Cor. Ltd., 9, Clements Lane, London E.C.4. Dear Sirs, With reference to your letter of Aug. 7th. ref. NH/JS/R1. We are… | ||
| Scan159 | Letter from The De Lavaud Holdings Corporation acknowledging a letter and enclosing correspondence with Mr B. S. Day. | ||
| View original record | Telephone No. LETCHWORTH HERTS 136. Telegraphic Address: LAVAUDAL, LETCHWORTH, HERTS. Y4474 The De Lavaud Holdings Corporation, Limited. ENGINEERS. Directors: G. C. HANS HAMILTON. D. SENSAUD DE… | ||
| Scan160 | Letter from De Lavaud Holdings Corporation regarding the design of a differential, referencing a blueprint. | ||
| View original record | GC/DT/L. October 26th. 28. Messrs. Rolls-Royce Ltd., "Camacha" West Wittering, Chichester. Dear Sirs, For the attention of Mr. B. S. Day. Further to our letter of the 24th instant we have fortunately… | ||
| Scan161 | Conclusions from testing a freewheel system on a Talbot car. | ||
| View original record | Hs. from R. c. to BJ. Wor. c. to PN. BY. c. to SWB. SG. +4474 R1/M6.11.28. FREEWHEEL FOR CARS. X.523 X.4474 CWB. very kindly brought a Talbot car with De Lavaud scheme of freewheel back axle, to WW.… | ||
| Scan162 | Comparison of the sideshaft freewheel arrangement with the De Lavaud scheme for a 20 HP gearbox. | ||
| View original record | HS. From DA. COPY. +4474 DA.1/M11.10.29. 20 HP. GEARBOX. X.5770 FREEWHEEL IN SIDESHAFT. X.4474 X.5310 It will have been observed that this arrangement does not function exactly the same as the De… | ||
| Scan163 | Ordering five wheels, tyres, and tubes from Dunlop Aero. | ||
| View original record | BP. To XXX. from Hs. X4675 Hs3/LG22.10.28. Dunlop Aero. Please order 5 wheels, tyres and tubes complete as per correspondence herewith. Wheel dimensions are given in ROY/EEA6/EB4.10.28, size of tyres… | ||
| Scan164 | The performance and cooling system of a Phantom II Demonstrator car after two years of use in India. | ||
| View original record | 14476 Hs. & Rm. Derby. ✓ Copy to Mr. Hives London. Bombay, NRC26/S18.5.32. re Rolls-Royce Car Chassis 76-WJ, Phantom II Demonstrator. The above car which is fitted with a 4/5 Seater Touring Body has… | ||
| Scan165 | Performance report detailing fuel consumption, steering, and suspension characteristics during a road test in India. | ||
| View original record | 2. the whole trip making no allowance for shortage from pumps etc. works out at about 12.5 M.P.G. Individual readings taken for a few hundred miles here and there came to about as high as 13 M.P.G.… | ||
| Scan166 | Car performance in India, detailing issues with suspension, brakes, and the engine after 10,600 miles. | ||
| View original record | 3. is used as a town carriage. Personally I feel inclined to favour maintaining the present flexible springs but would suggest in future that cars destined for India should be fitted with Hartfords as… | ||
| Scan167 | Demonstration car's condition, noting clutch modifications and recurring issues with the K.S. Telegauge. | ||
| View original record | 4. NRC26/S13.5.32. and all gears appeard to be in almost 100% condition. We have also modified the clutch as per Depot Sheet No. 140 No trouble has been experienced to date, but the clutch liners were… | ||
| Scan168 | Reply to observations on vehicle performance, discussing improvements to cooling, steering, suspension, and the petrol gauge for tropical conditions. | ||
| View original record | To NRC. (Bombay) from Hs/Rm. c. Hd. c. Whr. X4476. Hs/Rm.3/ADG.7.32. Thank you for your NRC26/S13.5.32. We would reply to your observations as follows :- COOLING. There is no doubt that the latest… | ||
| Scan169 | Correspondence regarding the performance and potential sale of a Phantom II Demonstrator in India. | ||
| View original record | HS/Rm. ✓ RECEIVED 4 AUG 1932 Copy to Whr. London. Copy to Hd. Derby. x 4476. Bombay, NRC14/S22.7.32. re Rolls-Royce Car, Chassis No.76-WJ, Phantom II Demonstrator. Dear Rm,---------------- Many thanks… | ||
| Scan170 | Page two of a letter discussing car performance in India, covering steering, suspension, and petrol gauge issues. | ||
| View original record | 2. NRC14/S22.7.32. by most people in England. Fortunately, the air temperature drops as one climbs the hill, but even at Murree in the hot weather it may be as much as 90° F. I did not attempt to take… | ||
| Scan171 | Test report memo on the 174-MY Hooper's Demonstration Car, Standard Long Chassis, noting disappointments with its specification. | ||
| View original record | EP7/HS.5.33. re. 174-MY. HOOPER'S DEMONSTRATION CAR. Standard Long Chassis. In testing the above chassis for acceptance, I was very disappointed, having regard to the use and specification of this… | ||
| Scan172 | Fitting an improvement to a demonstration car while it is with the coachbuilders. | ||
| View original record | - 2 - shall be glad to hear as soon as possible what are the possibilities of fitting this improvement, and whether same can be applied to this car whilst at Coachbuilders. It is of course important… | ||
| Scan173 | Springing and shock dampers for a Hooper's demonstration car with a standard long chassis. | ||
| View original record | [Handwritten annotation] XHH/jb. BY.8/G.8.5.33. [Routing list] ER. [crossed out] Or. [crossed out] C. Wort. [crossed out] c. Hs. RE: 174-MY. HOOPER'S DEMONSTRATION CAR. STANDARD LONG CHASSIS.… | ||
| Scan174 | Typewritten document fragment discussing the classification of an item. | ||
| View original record | - 2 - BY.8/G.8.5.33. it is an attempt to drag it into a class to which it does not belong. BY. [handwritten signature] | ||
| Scan175 | Clarifying the standard specifications for Hooper's Demonstration Car, 174-MY, on a standard long chassis. | ||
| View original record | XHH76.. S/W....EP c. to Wor. By. ->Hs. Ev. JHS C18/C8.5.33 Re 174-MY..Hooper's Demonstration Car. Standard Long Chassis. EP7/H6.5.33 ------- We are not quite able to understand this memo. because we… | ||
| Scan176 | Replying to various questions regarding the demonstration chassis GDX-10 for Messrs. R.P. Collyer Limited. | ||
| View original record | D/BP c. Won c. PP c. Hs. x476 BY/Cgh.1/G.12.6.33. RE: CHASSIS GDX-10. MESSRS. R.P. COLLYER LIMITED., MONTREAL (DEMONSTRATION). ----------------------------------------------------------------- With… | ||
| Scan177 | The formulae and variables for spiral springs. | ||
| View original record | X4490 29.1.29. SPIRAL SPRINGS. No. of coils = n Dia. of wire = d (") " " coil = D (") Load = W (lbs) Modulus = C (lbs/sq.") T.M. = T (lb-inches) Length = l (inches) Deflection = δ (inches) lθ = d/2 θ… | ||
| Scan178 | Page of calculations and formulas concerning spring stresses and design for minimum stress. | ||
| View original record | -2- Contd. Comparative stresses in two springs are as C. d. δ. : C₂ d₂ δ ₂ ------ ------ D.² n. D₂² n₂ W D π --- = --- d³ f 2 16 π C d δ = --- d³ x ------- 16 π D²n 8 D³nW δ = -------- C d⁴ C d⁴ δ W =… | ||
| Scan179 | Page of mathematical equations and derivations from a larger document. | ||
| View original record | -3- Contd. Since the rate W/d = (Cd⁴)/(8 D³n) is given and C is fixed and D is given n ∝ d⁴ Actually n = C/(8 D³ R) . d⁴ so that if we say n d = L' we have C/(8 D³ R) . d⁵ = L' or d = ⁵√((8D³RL')/C)… | ||
| Scan180 | Technical data sheet defining the variables and formulas for spiral springs. | ||
| View original record | X4490. 31.1.29. SPIRAL SPRINGS. Diameter of wire = d (") " " coil = D (") Number of effective turns = n Length " " " = l (") Whole length of spring = L (") Fully compressed length of spring = L' (")… | ||
| Scan181 | Page of formulas for calculating comparative stresses, deflection, and rate in springs. | ||
| View original record | -2- Contd. Comparative stresses in two springs are as C, d, δ, / D, 2 n : C2 d2 δ2 / D2^2 n2 _____________ W / 2 = π / 16 d^3 f = π / 16 d^3 * C d / D^2 n δ = (8 D^3 n W) / (C d^4) W = (C d^4 δ) / (8… | ||
| Scan182 | Technical page with calculations for spring stress, rate, and coil diameter under a given load. | ||
| View original record | -3- Contd. Spring of given load, compressed length. Rate and coil diameter for maximum stress. We have given W, L' = L - S, R = W/δ and D. Since f/W = (C d δ / π D² n) x (8 D³n / C d⁴ δ) The stress f… | ||
| Scan183 | Calculations and specifications for a low rate spring. | ||
| View original record | X. 4490 LOW RATE SPRING. Maximum load 10.00 lbw (W) Initial load 6.00 lbw. Working compression .700 inches. Rate = 4.00/.700 = 5.71 lbw/inch (R) Compressed length 3.000" (L') Initial " 3.700" Free "… | ||
| Scan184 | Page of calculations for various engineering variables, including stress. | ||
| View original record | -2- Contd. We now have d = .048" D = .323" W = 10.00 lbw L = 4.750" δ = 1.750" R = W/δ = 5.71 lbw/inch We have n = (Cd^4) / (8D^3 R) = (12 x 10^6 x (.048)^4) / (8 x (.323)^3 x 5.71) = ((.48)^3 x 72) /… | ||
| Scan185 | Specifications and calculations for a long low rate unenamelled spring. | ||
| View original record | (1) LONG LOW RATE SPRING Y (UNENAMELLED) Maximum load = 11.00 lbw Initial load = 6.00 lbw. Working compression = .700 inches. Rate = 5.00 / .700 = 7.14 lbw/inch (R) Compressed length = 4.000" (L!)… | ||
| Scan186 | Page of engineering calculations for determining material stress. | ||
| View original record | -2- Contd. We now have d = .056" D = .320 W = 11.00 lbw. L = 5.540 inches δ = 1.750" R = W/δ = 7.14 lbw/inch We have also n = (12 x 10^6 x (.056)^4) / (8 x (.320)^3 x 7.14) = 63.1 say 63 (n+1) d = 64… | ||
| Scan187 | Calculation sheet for a long low rate spring, designated Z. | ||
| View original record | -1- LONG LOW RATE SPRING Z. Maximum load = 8.25 lbw. Initial load = 6.00 lbw. Working compression = .700 inches. Rate = (2.25 / .700) = 3.21 lbw/inch (R) Compressed length = 4.000" (L') Initial length… | ||