Rolls-Royce Archives

Rolls-Royce Experimental Archives: Box ExFiles\Box 136\5\        Box Selection

IdentifierEntry
scan0001 The discomfort caused by hot floorboards in the 20-HP car and proposing experimental work on ventilation.
View original record X819 HS. c. to B.Y. c. to E. EP4/H5.3.23. re. 20-HP. Car and Hot Floor Boards Front Seats. We are rather concerned with the discomfort caused by the above, even during the present weather. Although it…

scan0002 Response to a complaint regarding hot floor boards on the 20 HP car model.
View original record To EP. from Hs. c/c to BY. c. to E. X819 Hs3/LG6.3.23. 20 HP. HOT FLOOR BOARDS. V3730 X819 It is difficult to appreciate your complaint of hot floor boards on the 20 HP., especially your remarks that…

scan0003 Tests to reduce heat under the scuttle of a 4-Goshawk-11 car.
View original record R.R. 493 (40 H) (SL 42 12-7-23). J.H., D. X819 EXPERIMENTAL REPORT. COPIES TO: R.CJ. BJ. WOR. By. E. Da. EP. PN. OY. Expl. No. X.4272 X.819 REF.HS2/LG16. 8.23. OBJECT OF TEST. To reduce heat under the…

scan0004 Investigating and proposing solutions for heat under the scuttle of a 20 HP car.
View original record R.R. 409A (40 H) (8L 42 12-7-23). J.H., D. EXPERIMENTAL REPORT. Expl. No. 4272 REF: Hs2/LG16.8.23. 20 HP. HEAT UNDER SCUTTLE. You will remember 4-Goshawk-11 car was noticeably worse with regard to…

scan0005 Methods to reduce engine heat felt in the cabin, discussing ventilation and insulation improvements.
View original record CJ. BJ. PN. LHS. LORD WARGRAVE MR. A. CLAREMONT. } FROM R. c. to HS. EP. RG. HY. BY. RE. HEAT FROM ENGINE. X 819 R2/M12.9.23. X.819 X.4613 I notice that CJ. mentions the desirability (If necessary) of…

scan0006 Methods for reducing engine heat and the temperature of air under the bonnet.
View original record -2- This third item is less effective than the two preceeding ones and probably it will be found to have a very little effect on the temperature of the air within the scuttle. (4) The fourth item is…

scan0007 Requesting tests on a new cork matting for floorboards to reduce heat to the driver's feet.
View original record X819. To Hs. from BJ. Copy to LHS. for CSC HEAT TO FRONT FOOTBOARDS. BJ18/H3.10.23. We have a new form of cork matting for floorboards. We have tried this on a car used by LHS. and he con-siders it…

scan0008 The use of cork matting on front footboards to reduce heat and noise.
View original record x819 S/W (Mr. Hives) 4th October 1923 Copy to By. " " E.P. HO. 7/EBN4.10.23 HEAT TO FRONT FOOT BOARDS x819 With reference to memo. from B.J. to Hs.(Ref:BJ18/H3.10.23) I am desired by Lord Herbert…

scan0009 Testing cork matting to resolve heat issues with the front floorboards.
View original record To BJ. from Hs. c. to LHS. X819 Hs6/LG4.10.23. HEAT TO FRONT FLOORBOARDS. X819 Referring to your BJ18/H3.10.23. At the present time we are carrying out a large number of tests in connection with heat…

scan0010 From CJ to Hs requesting a report on the issue of hot floorboards.
View original record HS X819 To Hs. from CJ. Hot Floorboards. CJ23/E28/11/23 c. to R. I attach herewith correspondence re the above. Will you please let me have a report on this matter? CJ. Enc. BJ10/H28/11/23…

scan0011 Experiments with cork matting and leather flaps to mitigate hot floorboards.
View original record To CJ. from BJ. BJ10/H28.11.23. Handwritten: Send copies two of these to R + ask Hs. for report. Stamp: RECEIVED 29 NOV 1923 HOT FLOORBOARDS. On the present car it is hoped that cork matting may…

scan0012 Short memo inquiring about the progress made on resolving the problem of hot floor boards.
View original record To BJ from CJ. CJ7/E28/11/23 How far is it thought that the problem of hot floor boards has been overcome? CJ. [Stamp] M.H. NOV 28 1923 RECEIVED

scan0013 Confirming the completion of tests on hot floorboards and that a report will follow shortly.
View original record CJ. from Hs. X819 Hs3/LG1.12.23. HOT FLOORBOARDS. We have completed a number of tests in connection with the above. Our report will be sent off within the next two or three days. Hs.

scan0014 From BJ to Hs requesting an update on an overheating issue.
View original record X819 To Hs. from BJ. BJ9/H6.12.23. OVERHEATING. With reference to H's memorandum H2/M12.9.23, headed 'Heat from Engine', will you please let me know what is the position now in regard to item (4)?…

scan0015 Vehicle overheating and the potential solution of fitting a larger radiator.
View original record BJ. from Hs. X819 Hs2/LG11.12.23. OVERHEATING. With reference to your BJ9/H6.12.23. We have just sent our report on the possibility of reducing the temperature under the scuttle. As regards…

scan0016 From JS to Hs requesting a copy of a reply concerning hot floorboards.
View original record X819 To Hs. from JS. Hot Floorboards. JS1/E13/12/23 Referring to CJ's CJ23/E28/11/23, copy attached, would you kindly send me copy of your reply thereto, as I cannot trace it here? JS. CJ

scan0017 Cover note from CJ to Hs. requesting a report on the matter of hot floorboards.
View original record To Hs. from CJ. Hot Floorboards. CJ23/E28/11/23 C. to R. I attach herewith correspondence re the above. Will you please let me have a report on this matter? CJ. Enc. BJ10/H28/11/23 CJ7/E28/11/23

scan0018 Incomplete report on hot floorboards, advising a more complete version will follow.
View original record JS. from Hs. V819 Hsl/LG14.12.23. HOT FLOORBOARDS. A report was typed out in connection with the above but in the meantime was found incomplete. A more complete report will be sent in the course of a…

scan0019 Results of tests for insulating the exhaust to reduce heat on the floorboards and under the scuttle.
View original record To R. from Hs. c. to CJ. Da. c. to RG. BY. E. to E. oy X819 Hs2/LG21.12.23. 40/50 - HEAT ON FLOORBOARDS AND UNDER SCUTTLE. X819 XL613 We carried out a further series of tests of insulating the…

scan0020 Tests to reduce heat on the floorboards and under the scuttle of a 40/50 HP car.
View original record R.R. 408A (40 H) (SL 42 12-7-23). J.H.D. EXPERIMENTAL REPORT. Expl. No. 819 REF: Hs1/1.G11 12. 23. To R. from Hs. c. to CJ. c. to RG. c. to E. c. to Da. c. to BY. c. to OY. 40/50 - HEAT ON FLOORBOARDS…

scan0021 Modifications to reduce floor and scuttle temperature.
View original record R.R. 493A (40 H) (SL 42 12-7-23). J.H., D. EXPERIMENTAL REPORT. Expl. No. 819 REF: Hs1/LG11 12.23. of air which passes through which counts. In order to reduce the floor and scuttle temperature the…

scan0022 Modifications to the 40/50 undershield and testing cork floorboard coverings.
View original record R.R. 493A (40 H) (SL 42 12-7-23). J.H., D. EXPERIMENTAL REPORT. Expl. No. 819 REF:Hal/LG11.12.23. the 40/50 is unnecessarily long as a protection from mud. We cut away the centre of the undershield up…

scan0023 Tests with a double dash air insulated dashboard to address complaints of cold feet.
View original record R.R. 493A (40 H) (SL 42 12-7-23). J.H., D. EXPERIMENTAL REPORT. Expl. No. 819 REF: Hs./LG/11.12.23. making further tests with the double dash air insulated dash-board. We believe the improvements we…

scan0024 Test report detailing temperature readings in different parts of a car under various modifications to reduce heat ingress.
View original record 11.12.23. TABLE 1 COLUMN HEADERS: CONDITION OF CAR., Atmospheric temp., Temp. of air at rear of Radiator. (A), Temp. of air at pedal slots. (B), Temp. of air under scuttle. (C), Dashboard temp. (D)…

scan0025 Graph showing the relationship between radiator water temperature and the air temperature at the rear of the fan.
View original record RELATION BETWEEN WATER TEMP. AND TEMP AT REAR OF FAN WATER BROUGHT TO 100°C AT COMMENCEMENT OF TEST AND READINGS TAKEN AS TEMPERATURE FALLS NO THERMOSTAT. NO BAFFLE PLATES AIR TEMP ENTERING RADIATOR…

scan0026 Graph-based report on experiments to reduce vehicle floor-board temperature.
View original record RISE IN C° ABOVE ATMOSPHERIC TEMPERATURE STANDARD CONDITION I PEDAL SLOTS FILLED IN. II AS IN I FLYWHEEL GUARD AND UNDERSHIELD ALTERED III AS IN I & II PEDALS COWLED IN INGRESS OF AIR PREVENTED IV AS…

scan0027 Lingering smell in chassis no. 2323 and the suggestion to fit a roof ventilator.
View original record To Hs. from Hm. To Rg. " " X819 Hm15/W12.12.23. Chassis No. 2323 - Steavenson. ________________________________ Although considerably improved the smell can still be noticed in the above car. It has…

scan0028 From CJ to Hs requesting a standardisation sheet regarding heat under floor boards.
View original record X819 To Hs. from CJ. Heat under Floor Boards. CJ16/E4/1/24 Referring to your recent report on the above matter, when are we to have a standardisation sheet for this? What is standing in the way of one…

scan0029 Design of modifications to reduce heat under the scuttle and considering alterations for front brake parts.
View original record CJ. from Hs. X819 Hs3/LG7.1.24. & X9940 X819 (crossed out) With reference to your CJ16/E4.1.24. So far no standardisation sheet has been issued for the modifications necessary to reduce the heat under…

scan0030 Unresolved issue of exhaust fumes entering the car body, referencing two specific chassis.
View original record To Rg. from Hm. To Hs. Cc to Wor. X819 Hm3/W10.1.24. Re Exhaust Fumes in Bodies. Chassis No. 2323 - C.S. Steavenson. I regret to say that we have been unable to make satisfactory progress in our…

scan0031 Plan to reduce heat under floorboards by fitting new pedals in conjunction with the rollout of 4-wheel brakes.
View original record CJ. from HS. 7817 Hs1/LG26.1.24. HEAT UNDER FLOORBOARDS With reference to your CJ /E24.1.24. We anticipate the standardisation sheet will be through in approximately a month. Both in the Expl: Dept:…

scan0032 Issue of heat on the floorboards and under the scuttle.
View original record To Mr H from BJ. c. to HF. c. to Hs. X819 BJ/Py5/D28.1.24. Heat on Floorboards & under Scuttle. We attach copy of Oy2-E11624 of January the 16th, which we have received this morning. BJ/Py. Att: Copy…

scan0033 Letter detailing five partial cures for heat transfer issues from the floorboards and scuttle area.
View original record Oy2-E-11824 January 16, 1924. Mr. Claude Johnson, Rolls-Royce, Ltd., London, England. (Copy for attention of Mr.Royce " " " " Mr.E.Platford " " " " Mr.Hives)✓ Dear Sir: Heat on floorboards and under…

scan0034 Modifications to prevent noise and heat conduction through the floor and pedal area.
View original record Oy2-E-11824 -2- January 18, 1924. Items 1 and 2. Items 1 and 2 are important we find in preventing noise as well as heat, in fact they are used both in front and rear (and the cork under the rear…

scan0035 Attaching a report from Springfield concerning heat on the floorboards and under the scuttle.
View original record 1819 BY c.Hs. EP4/H4.2.24. re. Springfield - Heat on Floorboards & under Scuttle. I attach to your copy of this memo copy of report from Springfield, Oy2/E/11624, for your consideration, so that we…

scan0036 Experiments to diagnose and resolve fume ingress into the cabin of Chassis No. 2323.
View original record X819 To R. from Hm. " J. " J. " or. " P. " Hs. " BY. " Rg. Re Fumes in Car. Chassis No. 2323 - S. Steavenson Esq. The above owner has complained for a long time about fumes, and whilst he has been…

scan0037 Internal memorandum discussing customer complaints of fumes and sickness caused by poor car body design.
View original record -2- Hm11/W19.3.24 Contd. the body. A ventilator was fitted to the top of the scuttle and one to the roof. Neither of these helped to get rid of the smells, in fact we thought with the roof ventilator…

scan0038 Road tests investigating issues with fumes entering the car body on chassis number 2323.
View original record COPY Hm. EP24/H18.3.24. Re Chassis No. 2323 - Steavenson. As requested, I ran this car this week-end for about 110 miles, with Mrs. Platford on board, who at present positively refuses to go out in…

scan0039 Requesting an update on alterations to cars with front brakes intended to reduce heat for the driver.
View original record SECRET. To Hs. from CJ. Heat under Floorboards. CJ1/E2/7/24 Referring to your memo. Hs3/LG7/1/24 in which you said you intended to make alterations on cars fitted with front brakes with a view to…

scan0040 Alteration to reduce heat under the scuttle and floorboards on cars being tested in France.
View original record CJ. from Hs. X 819 Hs5/LG3. 7. 24. HEAT UNDER SCUTTLE. X 4613 (crossed out) X 819 The alteration for reducing the heat of the floor-boards and under the scuttle is incorporated on the cars running…

scan0041 Inquiring about the issuance of a standardisation sheet for alterations to reduce heat under the floorboards.
View original record 4819 To Hs. from CJ. Heat under Floorboards. CJ2/E27/11/24 4819 Has a standardisation sheet been issued yet in connection with the alterations proposed to reduce the heat under the floorboards? CJ.

scan0042 Improvements to reduce heat under the floorboards, which are introduced with the standardisation for 4-wheel brakes.
View original record To C.J. from Hs. x 819 Hs5/LG28.11.24. HEAT UNDER FLOORBOARDS. x 819 x 9940 The improvements for reducing the heat under the floorboards automatically come in with the standardisation for 4-wheel…

scan0043 Querying if alterations for heat under front floorboards are for existing cars and if the cost is covered, or for new 'U' series cars only.
View original record S/W Hs. X819 C9/C6.12.24. Heat under Front Floor Boards. With reference to your Ms5/LG28.11.24., this was discussed at the Sales Conference, and I was instructed to ascertain whether it is intended to…

scan0044 Confirming the fitment of features to address heat under floorboards for conversion cars and 'U' series onwards.
View original record To C. from Hs. X819 Hs5/LG12.12.24. HEAT UNDER FLOORBOARDS. All the features mentioned in your memo. will be fitted to conversion cars as well as 'U' series and onwards. Hs.

scan0045 Complaints, causes, and proposed solutions for overheating in the rear interior of closed Phantom cars.
View original record To Hs. from DA/EV. c. to LHS. E. X 819 DA/EV1/M14.7.26. X.3003 X.819 X.822x X.3809 X.8230 OVERHEATING IN THE INTERIOR OF CARS. For some while now the C.S.C. has brought to our notice complaints of…

scan0046 Problem of excessive heat from the aluminium dashboard in the front compartment of cars.
View original record S/W. By x819. Cx11/H.23.7.32. RECEIVED 24 AUG 10 Re: Heat in front seats of R.R. Cars. As you know, we take steps to ventilate the front compartment of our Cars as much as we can, but we believe it is…

scan0047 Tests to reduce heat in the Phantom II car's driving compartment, focusing on dashboard insulation and exhaust pipe lagging.
View original record X819 To Sg. from Hs/Les. c. Wor. E. c. PN. BY. c. CX. EP. c. DA/EV. Hs/Les.5/KT.2.9.32. HEAT IN DRIVING COMPARTMENT P.II. We have been carrying out tests in order to reduce the heat in the driving…

scan0048 Vehicle body issues including hot air leaks, lever drafts, and floorboard fitting.
View original record -2- is beneficial to our results, and should not advise that this lagging be deleted in order to save using stainless steel exhaust pipes, until we have carried out further experiments. HOT AIR LEAKS.…

scan0049 Preventing air leaks through pedal holes and the challenges of obtaining reliable chassis test data.
View original record -3- should be notified. A good fitting sorbo mat is important. PEDALS. We have not tried any scheme to prevent air leaks through the pedal holes, but we feel a scheme for doing so, when the clutch and…

scan0050 Blueprint for a draught shield around the brake lever quadrant for a Phantom II chassis.
View original record F 84035 SUBFRAME FELT SUPPLIED BY R.R. LTD F.83487 SUPPLIED BY R.R F.83488 TO BE FITTED BY F.83486 COACHBUILDER DRAUGHT SHIELD AROUND BRAKE LEVER QUADRANT ROLLS ROYCE PHANTOM II CHASSIS. DRAWN BY B.H.…

scan0051 Cross-sectional diagrams illustrating insulation materials for a vehicle's dashboard and floorboards.
View original record DASHBOARD INSTRUMENT BOARD THICK FELT CARPET SORBO MAT FLOORBOARDS A SLOT WOULD BE NECESSARY IN THE TOP FELT FOR THE BIJUR PEDAL. FIG. II. DASHBOARD INSTRUMENT BOARD ASBESTOS SHEET THERMOMETER BULB…

scan0052 Issue of heat in the driving compartment of the Phantom II and 20/25 models.
View original record Hs x819. To Hs. from Sg. Heat in Driving Compartment. P.II. Copy to Wor. E. PN. By.Cx.EP.DA/EV. Sg7/E5.9.32 Thanks for Hs/Les.5/KT.2.9.32. This report on heat in the driving compartment is very…

scan0053 Technical memorandum discussing heat management in the driving compartment, including dashboard radiation and hot air leaks.
View original record HS. FROM DA/EV. V419 DA/EV2/M7.9.32. C. to SG. WOR. E. C. to BY. PN. CX. EP. HEAT IN DRIVING COMPARTMENT. With reference to the report on the above - HS/LESS5/KT.2932. - we would like to make the…

scan0054 Issues with scuttle ventilation and heat management, with suggestions for improvements.
View original record (2) We think it is unfortunate that while thermometer readings were taken with the dashboard lagged and unlagged, there were none taken for the improvements made due to the stopping up of the gas…

scan0055 List of recommendations for vehicle body and ventilation improvements.
View original record (3) the greatest heat complained of, namely, the feet. (2) We should cover the back of our dash with carpet as standard, or other heat resisting material. (3) That complete and adequate blueprints…

scan0056 Sources of heat entering the driving compartment and proposed solutions.
View original record X819 S/W. Hs/Les (c. to Sg) c. to WOr, E.BY,EP. c. " PN. DA/Ev.Hn. Cx15/KW8.9.32. Heat in driving compartment - P.II. Hs/Les5/KT2.9.32 & Sg7/E5.9.32. Sg has passed to me the two memos referred to…

scan0057 Floorboard sealing, material choices like Plymax, and scuttle ventilation systems.
View original record - 2 - passage are effectively sealed afterwards, will enable you to make a more or less completely gas-tight joint between the front edge of the first floorboard and the aluminium dashboard. Exactly…

scan0058 Methods to prevent heat from entering the driving compartment, referencing previous alterations and drawings.
View original record DA/EV. HS. Sg. Wor. E. PN. CX. EP. x819. BY.7/G.12.9.32. RECEIVED 1932 SEP 12 HEAT IN DRIVING COMPARTMENT. ------------------------- Referring to DA/EV.2/M.7.9.32. and dealing particularly with the…

scan0059 Investigating the issue of hot air entering the driving compartment through the gear lever quadrant.
View original record X819. S/W. Hs/Les c. to S. Wor. c. " BY E. EP c. " DA/Ev. PN Cx9/KW20.9.32. Heat in Driving Compartment. I have been investigating this matter from a Sales point of view and also made an examination…

scan0060 Methods to prevent hot air and gases from entering the vehicle's front compartment around the gear and brake levers.
View original record - 2 - " on 2.12.30 to Ev's instructions we added a sketch to the " Coachbuilders chassis print showing the method of making " a gas tight joint round the change-speed gear. Alteration I2980 F. " Later…

scan0061 Page 2 of a memo regarding an urgent scheme to prevent heat from entering the front compartment of cars.
View original record - 2 - study of it straight away, so that all cars delivered in future shall be provided with a scheme for preventing heat from entering the front compartment and thus avoid complaints when the hot…

scan0062 Proposal with a diagram for a method to prevent gas from entering the car body from under the floorboards.
View original record Cx 18770 Heat in Bodies I submit that a good method which might be incorporated on both 40/50 & 20/25 HP chassis by "W" for the exclusion of gas from under floorboards would be to fit side plates to…

scan0063 Combined gas and draught shield to prevent heat in the driving compartment.
View original record W/F (Cx). X819 BY/Cgh. S/G. 23.9.32. HEAT IN DRIVING COMPARTMENT. With reference to Cx.9/KW. 20.9.32. the facts are that F.84034 which is reproduced from N.Sch. 3221 is a combined gas and draught…

scan0064 Correcting a drawing number concerning heat in the driving compartment.
View original record W/S (Cx). C. PN. C. Hs. C. E. C. DA/EV. 8819 BY/Cgh.3/G.27.9.32. HEAT IN DRIVING COMPARTMENT. With reference to BY/Cgh.S/G.23.9.32. please note that drawing No. F.84034 in the first paragraph should…

scan0065 Rejection of a General Motors body ventilation scheme due to its negative impact on appearance and weight.
View original record S/W. Hs. G.M.Scheme of Body Ventilation. Arising out of the recommendation in your Hs6/KT23. 1.33, we took the opportunity of trying this scheme, which is fitted to Buick cars, by going out in one of…

scan0066 Advocating for the adoption of a superior U.S.A. car ventilation system, criticising current efforts as feeble.
View original record 8919 To Sg. From Hs. c. to Wor. c. to Da. c. to By. c. to Hm. c. to AV. Re. Car Ventilation. As there is never any hesitation as regards criticising our chassis, we have one very definite criticism as…

scan0067 The review of car ventilation, referencing a Buick scheme.
View original record Hs X819 To Cx. from Sg. Copy to Hs.Wor. DA.BY.Bu.EV. re Car Ventilation. Sg5/E17.7.33 Referring to Hs.3/WJ.15.7.33 this is a matter to which you will remember Hs. drew our attention several months…

scan0068 Testing the Buick 'No Draft' ventilation system on a 20/25 HP car.
View original record Wer at W. (Wer is crossed out) Copy to Hs. X819. LHS1/BE.18.7.33. "No Draft" Ventilation. ------------------- With reference to our conversation yesterday, I find on my return to London that we have…

scan0069 Options for sourcing and implementing a car ventilation system.
View original record X819 LID S/W. Hs. C. to Sg. C. " WOR. BY. C. " DA. EV. C. " Bn. Hn. Cx15/KW19.7.33. re- Car Ventilation. We have read with interest your Hs3/MJ15. 7.33 to Sg, and since this matter was previously…

scan0070 Delay in fitting the Buick 'No Draft' ventilation system due to parts availability from General Motors.
View original record LHS. (crossed out) Copy to: O. (crossed out) Wor. at H. (crossed out) Hs. (crossed out) Hy. (crossed out) X819. Hn28/BE.1.8.33. BUICK "NO DRAFT" VENTILATION SCHEME. A hitch has arisen in connection…

scan0071 Customer complaints about excessive heat from the front floorboards on Phantom II & 20/25 HP chassis models.
View original record Y 819. EP17/WH.29.8.33 EP. C. Rm Hs/Rm SLD, Liddie-Hall WCF HD re PHANTOM II & 20/25 HP. CHASSIS -…

scan0072 The reinstatement of the recommendation for top scuttle ventilators on Rolls-Royce and Bentley chassis.
View original record X 819. WR. at W. c. to Bm. c. to Hs/Rm. c. to F. c. to WOR. c. to HB. Hn12/I/19-9-33. HEAT AND FRONT FLOOR BOARDS. With reference to EP17/MH.29.8.33. addressed to EV., you may be interested to know…

scan0073 Petrol tank ventilation tests, recommending sealing the filler compartment rather than fitting a special breather pipe.
View original record X819 To C. From Hs/Lid. cc Wor. E. cc Db. Ev. cc Bv. Ht. Hs/Lid.1/KT.30.8.38. X2551 PETROL TANK VENTILATION - ALL CARS. In cases where the body is built round the petrol tank filler, we find from…

scan0074 Circulating recommendations for petrol tank ventilation to coachbuilders.
View original record S/W. c. to Wor. c. to I. c. to IA. c. to IY. c. to IV. c. to IN. c. to Hn. X 819. PETROL TANK VENTILATION. C1/I/28-9-33. X251 Hs/Lidl/KT.23.9.33. We note your recommendations. We have already conveyed…

scan0075 Negotiation terms for a licence for the Fisher Ventilating System.
View original record W/S (C). c. Hs. X819. BY.6/G.6.11.33. FISHER VENTILATING SYSTEM. ------------------------- As apparently no decision had been arrived at in connection with the question of a licence being obtained by…

scan0076 Adoption of the Fisher body ventilation scheme and its superiority over existing systems.
View original record 819. Hs.7/WJ.6.11.33. To Eg. From Hs. c. to C. c. to Wor. c. to Ox. c. to Da. c. to Ev. Re. Body Ventilation. We are very pleased to see that BY. has been able to arrange a reasonable royalty to…

scan0077 The poor state of car ventilation and the plan to license and test the Fisher ventilation system.
View original record HS X819... To C. from Sg. Copy to Wor.Hs. Cx.DA.Ev.Hn. re Body Ventilation. Sg8/E7.11.33 Referring to Hs.7/WJ.6.11.33 I agree with him that the ventilation arrangements on our own cars are terrible.…

scan0078 Delays in fitting a Fisher ventilation scheme to car GRW-70 due to issues with obtaining parts from the U.S.A.
View original record HS. r819. C. to Mr.W or. C. " Hs, DA C. " EV.Hn. re- Body Ventilation. Reference Sg8/E7.11.33, I would like to place on record the fact that with regard to paragraph 2 of Sg's memo one of our cars…

scan0079 Requesting two sets of semi-isolated floorboards to prevent booming for Phantom II and 25 HP chassis.
View original record X 819 To RHC. from Hs/FD. Hs/FD.3/KW5.1.34. Semi-Isolation of Floorboards to Prevent Booming. Phantom II & 25 HP. Chassis. Will you please put two sets of these boards in hand, 1 set for 27-EX and 1…

scan0080 Ventilation system on new Bentley cars, comparing it unfavorably to the Fisher scheme.
View original record To Sg. from Hs. c. to C. c. to Cx. c. to Wox. X 819. Hs.6/KW.5.2.34. Ventilation of Cars. I tried on one of the new Bentley cars the ventilation which I believe you are proposing to adopt, and that…

scan0081 Comparing the Fisher (American) and Quicktho (British) car ventilation systems.
View original record 2819 S/W. Hs... from Sg. C. to Wcr. Sg. " C.Cx. Ventilation of Cars. I was interested to read what you say in Hs6/KW5.2.34, and asked Cx to look further into this matter and the following is what he…

scan0082 Comparing the 'Fisher' and 'Quicktho' window schemes, discussing patent licensing and application in different car bodies.
View original record - 2 - Sg1/KW8.2.34. Fisher Scheme yet granted to the inventor, consequently they are not yet in a position to issue the licence to us. Nevertheless they are prepared to give us authority to supply the…

scan0083 Test report on rubber-covered metal floorboards for a Bentley vehicle.
View original record C O P Y. Hs. X819 23.2.34. BENTLEY. Rubber Covered Metal Floorboards. We have tested a set of these floorboards out on 3-B-IV and while we are satisfied that they have improved body booms on the…

scan0084 Instructing the despatch of Bentley floorboards and other parts to be sent for rubber covering.
View original record To Roy. from RHC/WSC. c. D/BP. c. G/Mt. 2819 RHC/WSC5/Ls.25.4.54. 0/54107. BENTLEY - FLOORBOARDS. We have sent into the Despatch Stores:- 1 - FB.1009 Alum Floorboard. 1 - FB.1014 Alum Floorboards 12 -…

scan0085 Comparing different body ventilation and window schemes.
View original record 2819 Rm To Mr...........From Mr Copy to Mr. W.O.S. U.V. Hs. Gr. Tn. A. re:- Body Ventilation. (1) THE FISHER SCHEME (GENERAL MOTORS). Two objections which have been raised to this scheme are that two…

scan0086 Operation and complexity of a window and deflector mechanism.
View original record - 2 - Continued: The deflector and channel can be wound down and the same handle operates the deflector. The window has a separate handle. Consequently, all possible settings of deflector and window…

scan0087 Production of new metal floorboards for the Streamlined Bentley.
View original record To E. c. to Wor. c. to Ev. + 819 Hs/Rm.3/KW.25.5.34. Metal Floorboards. We have a set of metal floorboards running now on the Streamlined Bentley. These are the latest type. We are very enthusiastic…

scan0088 Design and standardization of metal floorboards for a Bentley chassis.
View original record X819 To Hs/Rm. from E. c. Wor. EV. E.3/HP.25.5.34. Metal Floorboards. Replying to your memo HS/Rm.3/KW.25.5.34 we originally envisaged the particular point you raise with regard to the coachbuilding…

scan0089 Reviewing a patent 'No-Draught Ventilation' scheme by Mr. Simms of Cleveland.
View original record To Mr. CG. ...................FROM EV. Copy to Wor. O. CX. Mr. Hs. Mr W. re:- No-Draught Ventilation. ------------------------- I have examined the model and drawings of the Patent Ventilation Scheme…

scan0090 Cost-effectiveness and standardization of sheet metal floorboards for various chassis models.
View original record W/S. To Sg. and Wor. from E. c.c. Hs. Sy. Sft. Ck. Bn. LV. re Floorboards in Sheet Metal. Since we first designed and instructed Bentley floorboards in pressed sheet metal we should by now have had…

scan0091 Costs and feasibility of fitting sheet metal floorboards on Bentley cars.
View original record W/S. X819 Rm Sft.1/EJ.25.7.34 To. [Redacted] C.c. to Sg. C.c. to Hivor. c. to Hs C.c. to Hy. C.c. to Bn C.c. to EV. BENTLEY RE: FLOORBOARDS IN SHEET METAL - E1/HP.18.7.34 When first we examined the…

scan0092 Use of sheet metal floorboards on Bentley cars, questioning their advantages and issues with heat transmission.
View original record Hs. x 879 S/N. To Mr. from Sg. copy to W.O.v, Cr, Hs, Dy. Sft, Cx, Bx, Ry. Re: Floorboards in Sheet Metal. I understand that on the Bentley we have been having sheet metal rear floorboards but not…

scan0093 Secret memo discussing the advantages of using sheet metal pressings for floorboards on the Bentley chassis.
View original record V819 SECRET. To:- Eg. From E. c.c. Wor. C. Hs. HY. Sft. OX. Bn. De. KV. re Floorboards in Sheet Metal - re Sg.8/D26.7.34. Front floorboards in sheet metal are of more advantage on the Bentley than on…

scan0094 Chassis modifications considering tool cost, gearbox placement, and floorboard shape.
View original record - 2 - E.2/HP.30.7.34. with the necessity for a shaped rubber mat to fit the wells; they are also fully rubber mounted, i.e. held down on rubber by rubber lined clamping plates. In determining the…

scan0095 Issues with Bentley florboards softening and a proposal to increase material gauge and stiffener rigidity.
View original record +819 To By: Hs/Rn.20/KW.7.11.34. We have run into a certain amount of trouble with the florboards which we have standardised on the Bentley, owing to the material softening with age. We think that…

scan0096 Laboratory memo discussing the material hardness, specifications, and cost for aluminium sheet floorboards.
View original record x819 To Rm/Hs. HL12/AG.7.11.34. Laboratory. Re: Floorboard in Aluminium Sheet. Old sample 32.4 Br., new 37.5 Br. Harder Aluminium sheet might be used but this would increase difficulty in working.…

scan0097 Costs and benefits of introducing sheet metal floorboards for Bentley vehicles.
View original record HS To Wor. From Sg. Re Sheet Metal Floorboards Sg6/E8.11.34 Copy to E. Hs. for Bentley. You will remember some former correspondence about this when the cost of the tools was given as about £1,000 and…

scan0098 Use of sheet metal floorboards in Bentley bodies to prevent 'booming' and contact with the gearbox.
View original record To Wor. from Hs/Rm. c.c. to E. 4819 Hs/Rm.S/KW.12.11.34. Sheet Metal Floorboards for the Bentley. Referring to Sg.6/E.8.11.34. Sg. questions whether there is any booming in the Bentley bodies. Our…

scan0099 The failure of Bentley metal floorboards and proposed improvements.
View original record To Hs/Rm: 4819 Hs/FD.2/KW.22.11.34. Bentley Metal Floorboards. We have been running three Bentley cars fitted with metal floorboards, in aluminium, and in each case the rear board has collapsed in the…

scan0100 Comparison between a mild steel and an aluminium rear board, with a note on floorboards for a Bentley.
View original record -2- Hs/FD.2/KW.22.11.34. An alternative rear board has been made in mild steel. This also has rolled edges, and a steel bracket welded to the board round the cut-out. To save weight no angle piece has…

scan0101 Experiments and modifications for sheet metal floorboards on a Bentley, noting clearance issues.
View original record To Wor. from Hs/Rm. c. to E. 4819 Hs/Rm.6/KW. 26.11.34. Sheet Metal Floorboards for the Bentley. Further to Hs/Rm.8/KW.12.11.34. We have now completed our experiments on the sheet metal floorboards,…

scan0102 Standardisation of sheet metal floorboards.
View original record RR 755BN (5H) (57312, 29-12-33) BM. 3/640/2 COMPLETED 3.12.34. BENTLEY STANDARDISATION of PARTS. Description of Parts. SHEET METAL FLOORBOARDS. Origin. Reduce "booming" in the body and save weight.…

scan0103 Cost estimate for extra jigs, tools and equipment for the 'D' series chassis.
View original record STANDARDISATION of PARTS EW / 20/9/34 S/L IX Est. cost of extra jigs, tools and equipment (Sft/Ws.7.9.34) - £771.0.0. Could be brought on to production at 1st chassis in "D" series (Sft/GH.7.9.34)…

scan0104 The production and modification of Bentley sheet metal floorboards.
View original record To Wor. c. to E. c. to By. c. to Mx. 4819 HS/FD.14/KW.5.4.35. Bentley Sheet Metal Floorboards. We have submitted a complete set of alum. floorboards covered with rubber .060" thick by the Goodrich…

scan0105 Invoice for verbally ordered rubber-covered floorboards.
View original record Hs. Rm G/Cam/CA.4/DN.15.4.35. We have received an invoice from the British Tyre & Rubber Co. Ltd., dated the 11th. inst., on which we are charged 25/-d. per pair for one sample pair (one front and one…

scan0106 Request to place an official order for one sample pair of rubber-covered floorboards.
View original record X819 To Roy. c. to G/Cam. Hs/Rm.18/KW.26.4.35. Will you please pass an official order to The British Tyre & Rubber Co.Ltd., for one sample pair of Floorboards, rubber covered, at 25/-d. per pair, as…

scan0107 Issues with deflecting sheet metal floorboards and proposing material and design changes.
View original record x 1141 F.Dodd See me please Ru BY. from E. E.1/HP.4.11.35. c. Hs. Mx. LA. EV. JNR. re Sheet Metal Floorboards. We are having a lot of trouble with sheet metal floorboards deflecting more particularly…

scan0108 Gas-tightening of levers for the 20/25 HP chassis floorboards.
View original record X1141 To EV. Rm E/Ev.2/MN.4.12.35. Copy to Hs/Rm. Wyman. Noted [signature] 20/25 H.P. Floor Boards. With reference to the gas-tightening of the change speed and brake levers on the 25 H.P. chassis,…

scan0109 Stiffening of Bentley floorboards to prevent drumming around the headlamp foot switch.
View original record X114 BY. C. RHC. C. Hs/Rm. E/JMR.2/HP.6.12.35. Bentley Floorboards. We send you herewith:- LeC.4853 showing the board stiffened locally around the head lamp foot switch to prevent drumming of the…

scan0110 Request to fit improved sheet metal floorboards to specific chassis.
View original record To RHC. X114/ Hs/PD.4/KW.11.12.35. Phantom III - Sheet Metal Floorboards. Will you please have the improved floorboards to Lec.4843 and Lec.4578 fitted to 32-EX. Hs/F.Dodd .

scan0111 Noise insulation options for Bentley and Phantom III floorboards, comparing rubber mats to rubberised felt.
View original record P. DODD. See me please Rm Hs. c. Sg. Wor. By. E/Lid.1/HP.3.4.36. Bentley Floorboards. With reference to the results of work which has been done recently on noise insulation of dashboards and…

scan0112 Continued use of rubberised floorboards on the Bentley and Ph.III chassis.
View original record To L. c.c. to SG. c.c. to WOF. c.c. to Hy. X 1141 HS/FD. & /JH. 3.4.36. Rubberised Floorboards. Re. E/Lid.1/HF.3.4.36. The question has been raised as to whether we should continue to use rubberised…

scan0113 Attached invoice received from Messrs. H.J. Townsend & Son.
View original record Roy. c. to G/JWH. Handwritten: P 206 304 X114/ Handwritten: floorboards Hs/FD.2/MA.21.10.36. With reference to our memo Hs/FD.4/KW.9.10.36., we have just received an invoice from Messrs. H.J.Townsend…

scan0114 Letter to Messrs. Park Ward & Co. Ltd. recommending a 3/4 inch thickness for 'Rhino' cork core plywood floorboards.
View original record X 1044 1141 Exptl. Dept. Hs/FD.9/JH. 13th October, 1936. Messrs. Park Ward & Co.Ltd., 473, High Road, Willesden, LONDON. N.W.10. For the attention of Mr. Thompson. Dear Sirs, Re 24-G-6. With reference…

scan0115 Letter from coachbuilders Park Ward & Co. Ltd concerning 'Rhino' cork core plywood for a new experimental car, 24-G-6.
View original record X1044 t04 1141 PARK WARD & CO. LTD COACHBUILDERS OFFICIALLY APPOINTED RETAILERS OF ROLLS ROYCE CARS DIRECTORS: A·T·ROBERTS · W·M·PARK · C·W·WARD W·C·THORNE · J·A·FALCONER·C·A·FALCONER· W·S·PAGE…

scan0116 Proposal to order experimental chassis floorboards for the Wraith III, comparing cork core and Balsa core plywood.
View original record WYMAN - SECRET. 1141 WHAT DO WE WANT AT A RESULT OF OUR TESTS ? Pom Copy to Roy. Ev. Rm. RHC. HPS. Aill WRAITH III. CHASSIS FLOORBOARDS. --------------------------- We understand that it is proposed…

scan0117 Performance and fitting issues of different chassis floorboard materials for the Wraith III.
View original record To E. from Rm/Whym. c. to By. c. to Ev. c. to RHC. c. to HPS. 1141 Rm/Whym.10/AP.16.6.37 WRAITH III. CHASSIS FLOORBOARDS. In reply to E/Ev.1/M.3.6.37 re chassis floorboards for Wraith III., we have…

scan0118 Request for a new scheme for the Phantom III floorboards to accommodate a new Lucas foot dipping switch.
View original record To E. 1141 Rm/FD.5/JH.2.7.37. re Phantom III Floorboards. With the fitting of the new Lucas type of foot dipping switch, a new type of fitting is required when the floorboard covers the switch. Will…

scan0119 Recommending Balsa wood over Rino cork ply wood for the Wraith floorboards due to its superior water resistance.
View original record By. c. Da/Ev. c. Rm/Wym. 1141 Rm/FD.17/JH.18.11.37. re Wraith Floorboards. It is agreed to use wooden floorboards for the Wraith, and silence being equal with Rino cork ply wood and Balsa boards we…

scan0120 Scheme for a modified dash bracket on the Wraith III to carry the floorboards, making them interchangeable.
View original record BY/NS. c. Hm. DA.14/G.22.11.37. FD 1141 WRAITH III - DASHBRACKETS & FLOORBOARDS. Please receive herewith the following scheme F.CD.242 Modified Dash Bracket to carry floorboards. The above drawing…

scan0121 Modifications to the Wraith III floorboards and rear angle piece to reduce pressing costs.
View original record DA/NS c. Rm. DA.10/G.3.12.37. 1141 File WYMAN WRAITH 111 - FLOORBOARDS. Please receive herewith the following scheme :- F.CD.274 Modifications to Floorboards and Rear Angle Piece. The above scheme…

scan0122 The schemes and construction of floorboards for the Bentley 111.
View original record BY/NS C. Rm. DA.5/G.21.1.38. BENTLEY 111. FLOORBOARDS. Please receive herewith the following schemes :- F.CD.399 Floorboards (Plan) F.CD.400 Floorboards (Sections). The above schemes shew particulars…

scan0123 The design and supply of Bentley SO floorboards and a centre floorboard scheme.
View original record [REDACTED] [REDACTED] [REDACTED] 1141. DA.9/C/7.4.38. F. DODD BENTLEY SO. FLOORBOARDS. Please receive herewith the following scheme :- F.CD.596 Centre Floorboard. The above scheme shews the centre…

scan0124 Scheme for a spring-loaded Rear Bore Dipstick Cover Hinge for Bentley 3 and 50 floorboards.
View original record DX/NO. [crossed out] c. Rm. DA.3/G.9.7.38. BENTLEY 3 and 50. FLOORBOARDS. Please receive herewith the following scheme:- F.CD.786 Rear Bore Dipstick Cover Hinge. The above scheme shews a spring loaded…

scan0125 Floorboard scheme for Bentley 111, Bentley 50, and Wraith 80 models.
View original record c. Y/NS. c. Rm. c. De/SV. c. De/JD. c. BY/RD 1141 DA.4/G.3.12.38. F.DOOD BENTLEY 111 AND BENTLEY 50. & WRAITH 80. FLOORBOARDS. * Please receive herewith the following scheme :- F.CD.1033 Centre…

scan0126 Floorboards and an experimental foot switch for Bentley 5, Bentley 50, and Wraith 80 models.
View original record BT/NS. c. Rm. c. BT/RD. c. Da/JD. 11 A/ DA.15/G.23.12.38. F DODD BENTLEY 5, BENTLEY 50, and WRAITH 80. FLOORBOARDS. Please receive herewith the following :- F.CD.1112 Foot Switch in Cover Plate. The…

scan0127 Instruction to change the specification of the floorboard pedal gap plate for Bentley and Wraith models.
View original record PY/NS. c. Rm. c. ROY/Les. c. Da/JD. //41 DA.9/G.10.3.39. BENTLEY 5, BENTLEY 50 and WRAITH 80. FLOORBOARDS. We wish to produce the pedal gap plate shewn on F.CD.615 in S/M. instead of aluminium. Will…

scan0128 Letter to Motor Panels (Coventry) Ltd. regarding a blueprint for floorboard fixing screws and replacement bushes.
View original record c. Da. Rm. Da/JD. BY/NS 1141 XX 23rd. June 1939. BY.6/G. Messrs. Motor Panels (Coventry) Ltd., Dunlop Road, Holbrook Lane, COVENTRY. For the attention of Mr. A.S. Smith. Dear Sirs, As promised during…

scan0129 Letter to Park Ward & Co. Ltd. regarding blueprints for floorboard fixing screws and floorboard alterations.
View original record c. Rm. Rm/FD. Da. 1141 CONFIDENTIAL. 26th. June 1939. BY.10/N. Messrs. Park Ward & Co.Ltd., 473, High Road, Willesden, London N.W.10. For the attention of Mr.Ward. Dear Sirs, Please receive herewith…

scan0130 To simplify the ordering of floorboard parts by altering supplier notes on the List of Parts (LOP's).
View original record 1141 BY/MS. (crossed out) C. De. (crossed out) C. Rm. (crossed out) C. De/SB. (crossed out) BY.5/G.10.7.39. FD (handwritten in circle) PRODUCTION B.5. FLOORBOARDS. To simplify the ordering of the…

scan0131 Description of Gleason Hypoid Gears, outlining their function and advantages.
View original record Wa: For you to take to Eng. X2060 Am sending a copy to Mr Cyril GLEASON HYPOID GEARS January 26 1926 DESCRIPTION Hypoid (or hyperboloid) gears are most easily understood by comparison with bevel gears…

scan0132 Analysis of hypoid gear design, load carrying capacity, wear characteristics, and comparison with spiral bevel gears.
View original record angle, the usual profile action of rolling and sliding, and, in addition, the endwise sliding. The endwise sliding is in the nature of the action of a screw, and thus it adds a motion known for…

scan0133 Technical document detailing the characteristics, advantages, and production of hypoid gears and pinions.
View original record It is well known that a pinion whose thrust during forward drive is toward the gear must be held in position even more rigidly than one having thrust in the opposite direction, because movement toward…

scan0134 The process and machinery for cutting and finishing gears and pinions using spherical cutters.
View original record which have the offset position of the spindles. This can be accomplished for the present by the use of riser plates. In cutting new cutters are required, and new or altered machines for the pinion…

scan0135 Design of a rear axle casing with hypoid gears.
View original record To BY. from DA. c.c. to BJ. HS. 42066 DAL/M6.10.26. EAC-9 REAR AXLE. X.7350 X.2066 Herewith we send M.schs. 2275/6/9 shewing the rear axle casing for the above car with hypoid gears. It will be…

scan0136 Modifications for the EAC-9 and 10 hypoid gear rear axle.
View original record To BY. from DA. c. to BJ. c. to Hs. 42066 DA2/M28.10.26. EAC-9 and 10 HYPOID. GEAR REAR AXLE. X. 2066 X. 7350 X. 7310 Herewith we send N.sch.2287 shewing the slight modifications to the rear axle…

scan0137 Design and specifications of EAC-9 & 10 Hypoid Gears.
View original record To BY. from DA. c. to BJ. Hs. DA1/M29.10.26. X2066 EAC-9 & 10 HYPOID GEARS. X.2066 X.7310 Herewith we send N.sch. 2291 shewing a 11/41 hypoid gear which gives almost exactly the same ratio as the…

scan0138 Experiences of American engineers with Hypoid bevel gears.
View original record Da. Copy to:- Hs. 82066. X175 CWB7/GM/3-11-26. BEVEL GEARS. I have seen a copy of Da2/M29.10.26. During the recent Motor Show and Paris Salon, I saw a good deal of a group of American Engineers which…

scan0139 Material choices for hypoid gears, specifically manganese and aluminium bronze.
View original record Y2066 BY2/H.22.11.26. R. Cy. (R.R. of A.Inc) C. Hs. C. WOF. RECEIVED NOV 22 1926 HYPOID GEARS. I attach hereto copy of a memo received from Cy. on the above subject. You will notice that they are…

scan0140 Production challenges, materials, and industry intelligence concerning hypoid gears.
View original record K2066 C. Hs. BY6/H. 30.12.26. 30/1/26 oc-1 HYPOID GEARS. ----------- Having heard from Oy. that the Gleason Company were in difficulties and practically held up so far as producing Hypoid gears…

scan0141 Testing a new gear construction on buses and subsequent issues with the ring gear.
View original record - 2 - "(b) The next step was to try the new construction on busses, where a low floor combined with a big gear reduction was a great attraction. Here, with more offset to the pinion, heavier loads,…

scan0142 Axle modifications and the use of hypoid gears.
View original record DA. BY. Hs. from R. & E. c. to BJ. Wor. X.2066 RA/MT.4.27. EAC9. & 10 - HYPOID GEARS. From the notes I see, I assume we are still going on with the axle modification for the above. But we cannot do…

scan0143 Confirming the Gleason Company will produce hypoid gears to the latest drawings and an order has been placed for six sets.
View original record HYPOID GEARS. E.A.C.9 & 10. Referring to R4/M.7.4.27. we had communicated with Da. on the subject of the design of the hypoid. The information conveyed to us enabled us to cable Cy. emphatically that…

scan0144 Specifications and application of 1' and 2' off-set hypoid gears.
View original record To BY. from DA. c. to BJ. Hs. X2066 DA3/M14.4.27. EAC.10 - HYPOID GEARS. X.2066 X.8310 X.7310 With reference to R4/M7.4.27., we did not understand that R. intended to scrap the 2" set off-set hypoids.…

scan0145 Lowering the chassis frame by using a smaller back axle bevel gear and a hypoid gear.
View original record To DA. from R. c.c. to BJ. Hs. BY. +2060. R3/M6. 5. 27. LOWERING OF CHASSIS FRAME. X. 8380 X. 5380 X. 7380 X. 2066 It is quite evident that we must on any future chassis get the frame lower. To do…

scan0146 Design, modification, and procurement of hypoid rear axle gears.
View original record To BY. from DA. c. to BJ. Hs. (2066 DAL/M25.6.27. HYPOID REAR AXLE GEARS. X.2066 X.7350 We have discussed again the question of hypoid rear axle gears, and R. wishes us to proceed immediately to order…

scan0147 The frame for experimental cars EAC.10 and EAC.12, requesting production of side members.
View original record To BY. from DA. c. to BJ. Hs. X2066. DA2/EVS.8.7.27. RE. FRAME FOR EAC.10. X.7380 X.2066 We send herewith N.sch.2429 shewing the frame for EAC.10. and EAC.12. In order to avoid making more dies for…

scan0148 Layout for EAC.10 and detailing the similar EAC.12, which will feature hypoid axle gears.
View original record To BY. from DA. c. to BJ. Hs. X2066 DA2/EV8.7.27. RE. EAC.10. & 12. X.2066 X.7770 We send herewith N.sch.2428 shewing a layout of the proposed EAC.10. EAC.12. will be exactly similar, but will have…

scan0149 Design and manufacturing of hypoid gears, focusing on issues with tooth abrasion and proposals for a new offset.
View original record To Mr (Springfield) [text crossed out] c.c. to AGR (Springfield) c. to Dy. [text crossed out] c. to Hs. Y3066 RE HYPOID GEARS I send herewith a layout, N.Sch.2427 and details G.75836/7/8 in duplicate,…

scan0150 Letter from Rolls Royce of America to Rolls-Royce Ltd. regarding a promised delivery date for three pairs of Hypoid Gears.
View original record X2066 ACR-5124 Sept. 21, 1927 Rolls-Royce, Ltd., Derby, England. Gentlemen: Attention Mr. Bailey Gleason Works of Rochester have promised us October 20th delivery on the three pair of Hypoid Gears…

scan0151 Use of Whitmores' 'Zero' oil for Hypoid Gears.
View original record X2066 Hs. BY4/H. 26.9.27. HYPOID GEARS. ------------ In connection with the use of Hypoid Gears in rear axles, the representatives of the Gleason Company who came here to discuss the matter, some…

scan0152 Stating the dry weight of the Hypoid Axle according to a specific arrangement drawing.
View original record To Hs. from RHC. 42066 RHC10/BE. 30.12.27. RE: HYPOID AXLE The weight of the Hypoid Axle complete to Arrgt. Drawing G.75657 comes out at 419 lbs. This is the weight of the Axle dry. RHC.

scan0153 Testing on hypoid rear axle gears and proposing a change.
View original record To R. from Hs. c. to BJ. Wor. c. to E. Da. c. to BY. X2066 Hsl/LG2.1.28. HYPOID REAR AXLE. We are running a car fitted with Hypoid gears which are 2" off centre. As regards silence, they are very…

scan0154 Comparative table of weights for different types of bevel wheels and pinions for axles.
View original record HYPOID AND EAC VII AXLES. COMPARITIVE WEIGHTS OF BEVEL WHEELS AND PINIONS. TYPE RATIO PINIONS PIECE NỌ WEIGHT BEVEL WHEELS. PIECE NỌ WEIGHT EAC VII 13/47 G70382 G70596 EAG VII 14/47 G70384 6.19 LBS.…

scan0155 Trial of a hypoid axle with a 1-inch offset, detailing bearing adaptations.
View original record BY. from DA. c. to BJ. Hs. X2066 DAL/M14.1.28. HYPOID AXLE 1" OFFSET. X.2066 X.3307 X.547 We understand that you are erecting the hypoid axle with 1" offset for trial immediately. In view of HS'…

scan0156 Proposals for the New Departure bearing and oil retaining devices on the 1' offset hypoid rear axle.
View original record BY. from DA. c. to BJ. Hs. +2066 Da2/M28. 2. 28. EAC.10 1" OFFSET HYPOID REAR AXLE. X.7350 X.2066 X.3807 Herewith we send N.sch.2552/3/5 on which we have shewn XXXX R's proposal for the New Departure…

scan0157 Pinion, bearing, and oil retaining for a 1' offset hypoid gear.
View original record DA. from R. c. to BJ. BY. Hs. X2066 R9/M5.3.28. 1" OFFSET HYPOID GEAR. X.2066 X.3807 Regarding the 1" offset hypoid gear, the pinion shewn on N.sch.2552 should be used until proved wrong - i.e. with…

scan0158 Debit from Springfield for special Hypoid Gears and requesting comments before payment.
View original record BY. from ROY. c. to Hs. -------------------- ROY8/MG7.3.28 -------------------- We have a debit from Springfield for no less than £114. 8. 8d covering three pairs of special Hypoid Gears, Piece Nos.…

scan0159 The final revision of a thrust bearing for an 'SS' 1' offset hypoid pinion.
View original record BY. from DA. c. to BJ. Hs. X.2066 Da2/M10.3.28. "SS" 1" OFFSET HYPOID PINION. Herewith we send N.sch. N.sch.2562 shewing the final revision of the thrust bearing in accordance with R9/M5.3.28. This…

scan0160 Invoice from the Gleason Co. for 3 pairs of special Hypoid Gears ordered for experimental purposes.
View original record Roy. C. Hs. X2066 BY/Mtn25/K. 12. 3. 28. Referring to ROY8/MG7.3.28., in regard to an invoice from the Gleason Co. in connection with 3 pairs of special Hypoid Gears, these were ordered for…

scan0161 The payment for three hypoid gears ordered from the Gleason Company.
View original record BY. from ROY. c. to Hs. ----------- 42066 ROY5/G14.3.28 ----------- Hypoid Gears - Gleason Company -------------------------- Thank you for By/Mtn25/K.12.5.28, from which I note the three Gears in…

scan0162 Frame height modifications, including front axle changes and the potential use of hypoid gears.
View original record Hs/Rn. from DA. X2066 DA5/M5. 6. 28. FRAME HEIGHTS. X.7380 X.7420 X.5380 X.615 X.2066 Replying to Hs/Rn6/LG31.5.28., at the present moment 'SS' is 22.5" from the ground, and we have obtained this by…

scan0163 The satisfactory performance of a hypoid rear axle and an investigation into wing clearance issues.
View original record To DA. from Hs/Rm: X2066 Hs/Rm5/LG7.6.28. X3350 With reference to DA5/M5. 6. 28. Our experience so far on the Hypoid rear axle has been very satisfactory. We hope to return 14-EX car to WW. in the…

scan0164 Modifications and ratios of rear axle hypoid bevel gears.
View original record X20661 RHC C. Hs. G. BY/TWD. BY/Cgh17/K. 14. 6. 28. RE S S REAR AXLE With reference to RHC2/BE26.5.28, the three sets of 11/41 ratio 1" offset Hypoid bevel gears which we have received are…

scan0165 Letter to C.C. Wakefield Ltd. regarding experiments with Hypoid bevel gears and the required special oil.
View original record X2066 /1583 Expl: Dept: Hs2/LG. 27th. June 1928. Messrs. C.C. Wakefield Ltd., Wakefield House, 30-32 Cheapside, London E.C.2. Dear Sirs, We are experimenting with a rear axle having Hypoid bevel…

scan0166 Letter from C.C. Wakefield & Co. acknowledging correspondence and promising to follow up with The Gleason Co. and their agents.
View original record X2066 BY APPOINTMENT TO H.M. THE KING. C. C. Wakefield & Co., Limited. MANUFACTURERS of High Class Lubricants. Wakefield House, 30&32, Cheapside, London, E.C.2. GOVERNING DIRECTOR, SIR CHARLES…

scan0167 Alterations to a car, including fitting a Hypoid rear axle, and arrangements for its testing and investigating a separate vehicle's vibration issue.
View original record To R. from Hs. c. to BJ. Wor. c. to C. Sg. +2066 Hs4/LG28.6.28. 14-EX. X.7770 X.5770 X.7830 X.634 X.2066 The rear seats of this car have been altered to Sales Instructions. We propose sending the car…

scan0168 Cancellation of an order for three pairs of Gleason Hypoid Bevel Gears.
View original record X2066 BY from ROY. c. to Hs. ---------- ROY9/MG2.10.28 ---------- Gleason Hypoid Bevel Gears ------------------------- Springfield have cancelled our Order for three pairs of Gleason Hypoid Bevel…

scan0169 Alterations to the rear hub and brake drum for the 'India 4' rear axle to accommodate rebuilt wire wheels.
View original record x2066 BY. from DA. c. to BJ. Hs. DA1/M7.11.23. INDIA 4. REAR AXLE. X.5350 X.2066 X.5420 Herewith we send N.Sch.8757 shewing the slight alterations to the rear hub and brake drum which are needed to…

scan0170 Use of standard English oil, specifically Castrol 'R', for hypoid gears.
View original record BY. from Hs. X2066 Hs6/LG20.11.28. OIL FOR HYPOID GEARS. X2066 X4481 We are very anxious to be able to use a standard English oil for our axles fitted with Hypoid gears. At present Gleasons only…

scan0171 'Hs.' to 'Mr. Alvey O.O.' requesting an order for 2 gallons of Whitmores No.O oil.
View original record X2066 To Mr. Alvey O.O. from Hs. Hs4/LG21.11.28. X.4481 Will you please order for us 2 galls. Whitmores oil suitable for Hypoid gears. We believe this oil is No.O. You have obtained this oil for us…

scan0172 Contingency plans for potential machinery delivery delays from Gleason's for the production of hypoid gears.
View original record [Struck through text] from Wor. c to Hs. [Struck through text] X2066 Wor2/T.27.11.28. ------------ Re Hypoid Gears. Although we are doing all possible to get machines to produce these gears, and have…

scan0173 Communication confirming a satisfactory delivery schedule for six sets of hypoid gears.
View original record HS. c. Wor. c. ROY. X2066 BY5/G.20.12.28. SIX SETS OF HYPOID GEARS. Rolls-Royce of America Inc. have replied to our cable as follows :- "Reference 568 Gleason advise working day and night. Will ship…

scan0174 Delayed shipment of six sets of 40/50 HP Hypoid Gears arriving on the 'AMERICAN MERCHANT'.
View original record X2066 Wor. from ROY. c. to BY. c. to Hs. c. to HY. ROY2/MG18.1.29 ---------- The six sets of 40/50 HP. Hypoid Gears are on the "AMERICAN MERCHANT" due in London this week-end. We understand the cargo…

scan0175 Transportation of six sets of 40/50 HP Hypoid Gears from the 'AMERICAN MERCHANT' ship.
View original record X2066 Wor. from ROY. c. to BY. c. to Hs. c. to HY. ROY7/MG22.1.29 Further to ROY2/MG18.1.29, with regard to the six sets of 40/50 HP. Hypoid Gears on the "AMERICAN MERCHANT", the Shippers advise that…

scan0176 Request to increase an order for hypoid gear forged blanks from 200 pairs to 250 sets.
View original record /X2066 O.O. (struck through) C. G/Mt. (struck through) BY8/G.22.1.29. c. Hs. HYPOID GEARS. Will you kindly arrange to increase our order for 200 pairs of forged blanks to piece Nos. G.75836 and G.77…

scan0177 Secret report on dynamometer tests of Hypoid gears on an 'SS' chassis.
View original record To R. from Hs. c. to Sg. Wor. c. to E. DA. c. to BY. 4206 Hs3/LGS. 2. 29. 'SS' - S E C R E T. x7771 We have carried out several tests on two 'SS' chassis on the road wheel dynamometer. The chief…

scan0178 Issues with joints, gearbox performance, and petrol consumption during vehicle testing.
View original record contd :- -2- of oil in it. We also had a similar case with the chassis on the road. On investigation of these joints we found one definite fault, i.e., the eyelet of the joint distorts when the nuts…

scan0179 SS and Phantom power curve comparisons, dynamometer figures, and the fitting of a new dummy hub type rear wheel carrier.
View original record contd :- -3- We attach a chart giving power curves of the SS. compared with the xxxxxx average Phantom. These are the usual dynamometer figures which are taken. With the cutout open we obtain 104 HP.…

scan0180 Graph plotting Horse Power at the road wheels against Engine RPM for Phantom and S.S. chassis models.
View original record H.P. AT ROAD WHEELS, ENGINE R.P.M., 3RD GEAR, CUT OUT OPEN 2000 R.P.M, AV: PHANTOM 90.7 B.H.P., MIN: PHANTOM 86.1 B.H.P., S.S. CHASSIS 98 B.H.P., HORSE POWER AT ROAD WHEELS, STANDARD PHANTOM AND S.S.,…

scan0181 Comparison of different types of trunnion bearings.
View original record INDIA. AMERICAN TYPE STANDARD TYPE_G53671 STIFFENED TYPE_G53671 SS. STANDARD TYPE_G76832 STIFFENED TYPE_Ex3788 COMPARISON of TRUNNION BEARINGS RR 8-2-28

scan0182 Modifications to improve oil supply to the rear axle hypoid pinion thrust bearings.
View original record BY. from DA. c. to Sg. Hs. /2066 DA4/M20.2.29. SS. REAR AXLE. HYPOID PINION THRUST BEARINGS. X.7350 X.2066 We send herewith N.sch.2834 shewing a suggested means of supplying oil to the forward race of…

scan0183 Modifications to a hypoid rear axle casing to overcome distortion from a full throttle test.
View original record BY. from DA. c. to SG. Hs. +2066 DA1/M19.3.29. SS. HYPOID REAR AXLE CASING. X.2066 X.7350 Herewith we send N.sch.2854 shewing the modifications to the axle casing to overcome the distortion which…

scan0184 Go-ahead for experimental parts and an urgent request to lower a car's rear floor.
View original record E. DA. from R. HS. c. to SG. Wor. BY. /2066 R2/M13.4.29. G.A. X.5770 X.2066 Experimental parts to LeC.2689 and F's letter of the 10th. April should go ahead. We want G.A. in all haste. Can we also do…

scan0185 Secret memorandum discussing weight reduction and performance improvements for the future 20 HP model.
View original record X 2066 R. from DA. SECRET. DAL/M16.4.29. c.to Sg. Wor. FN. Hs. EV. LP. E. FUTURE 20 HP. X5770 X4012 X5830 X5310 As regards the alternatives Y. and Z. given in R1/M8.4.29., we are in favour of limiting…

scan0186 Design of a hypoid rear axle casing for a 20 HP model.
View original record X2066 ? By. from DA. SECRET. DAL/M29.5.29. c. to Sg. Hs. 20 HP. HYPOID REAR AXLE. X2066 X5350 Herewith we send N. sch. 2886. shewing the hypoid rear axle casing for the 20 HP. We have followed the…

scan0187 Notice specifying Whitmore's compound No. 'O' as the correct lubricant for Hypoid bevel gears.
View original record O.C. Mx. Sft. MP. c. Hs. X2066 BY8/G.19.6.29. HYPOID BEVEL GEARS. Please note that the correct lubricant for Hypoid bevel gears is Whitmore's compound No. 'O' variety. We should do all our testing…

scan0188 Reduction of the offset on the 'Japan' hypoid rear axle and correcting a naming error on a scheme.
View original record SECRET. X2066 By. from DA. C. to Sg. HS. DA2/M28.6.29. 'JAPAN' HYPOID REAR AXLE Mr. Royce wishes to reduce the offset from 1" to .850", which is equivalent to the 1" offset on the SS. axle. We send…

scan0189 Proposal to test Castrol 'R' oil in 40/50 HP Chassis hypoid axles instead of Whitmore's compound.
View original record X 2066 c. Dft. c. Hs. BY5/G.5.7.29. 40/50 HP. CHASSIS - HYPOID AXLES. The Experimental Department would like us to test out a number of the above axles with Castrol 'R' oil instead of Whitmore's…

scan0190 Type of oil for lubricating hypoid axles before vehicle despatch.
View original record Mx. c. Sft. c. EP. c. Hs. X2066 BY11/G.9.7.29. LUBRICATION OF HYPOID AXLES. ------------------------- Referring to BY5/G.5.7.29. we feel this matter requires further consideration. At the moment I…

scan0191 Letter to C.C. Wakefield & Co. regarding the unsatisfactory performance of Castrol 'R' oil in Hypoid rear axles compared to Whitmore's oil.
View original record x2066. Expl. Dept. Hs. 2/MJ. July 19th,1929. Messrs. C.C. Wakefield & Co.Ltd., Wakefield House, 30-32, Cheapside, London, E.C.2. x1583 x2066 Dear Sir, For the attention of Mr.Limb. Some time ago we…

scan0192 Directive on the mandatory use of Whitmores Compound for lubricating hypoid axles during the running-in period.
View original record MX. c. Sft. c. EP. c. Hs. c. Roy. X2066 BY3/M.30.7.29. LUBRICATION OF HYPOID AXLES. In view of the fact that the Experimental Dept. have had a case of the gear packing up when running with Castrol "R"…

scan0193 Failed test of an alternative gear oil for a Hypoid Axle.
View original record To [REDACTED] from RHC. [REDACTED] c. to Hs. >2066 RHC4/BE22.8.29. Re: "SS" Hypoid Axle A further test has been carried out on the Hypoid Axle. using another brand of Wakefield Gear Oil as an…

scan0194 Failure of hypoid axle gears and the proposed testing of a new castor oil-based gear oil.
View original record To BY. from Hs/AJL. filing x2066 Hs/AJL.1/MJ.5.9.29. OIL FOR HYPOID GEARS. As a result of the failure of three pairs of hypoid axle gears, due to useing oils other than Whitmore's Compound, it has…

scan0195 Letter to Gleasons Works in the USA regarding the testing of a newly developed oil for hypoid gears.
View original record c. HS/AJL. x2066. 6th. September 1929. BY5/G. Messrs. Gleasons, Gleason Works, Rochester, N.Y. U.S.A. Dear Sirs, We have been developing an oil in our own Laboratory for use in our axles where we fit…

scan0196 Confirming that 2 gallons of special lubricant are being sent for testing on a hypoid axle.
View original record X2066. Hs/Rm. H11/EA17.9.29. Laboratory. Re Lubrication of Hypoid Axle. As per our conversation, we are sending to you herewith 2 gallons of special lubricant for trying out on the hypoid axle. H1. He

scan0197 Revision to the Sports Phantom II rear axle, with modifications to strengthen the hypoid axle casing.
View original record BY. From DA. xnobb DA.2/M23.10.29. c. to SG. HS. SPORTS PHANTOM II REAR AXLE. X. 7350 X. 2066 We send herewith N. scheme 2971., shewing a revision of the original temporary bevel axle shewn on N.…

scan0198 The decision on hypoid gears for the Sports Phantom rear axle.
View original record BY. From DA. c. to SG. c. to HS. X-2066. DA.1/M25.10.29. SPORTS PHANTOM REAR AXLE. X. 7350 X. 2066 Herewith we send N. scheme 2972 shewing the 13/41 pair of hypoid gears which it was decided on…

scan0199 Sending a drawing of a standard 11/41 hypoid rear axle for record-keeping purposes.
View original record BY. From DA. c. to SG. HS. x2066 DA.1/M26.10.29. SS. REAR AXLE. X.7350 X.2066 We send herewith N. scheme 2974, shewing particulars of the existing standard 11/41 hypoid axle ratio. This drawing is…

scan0200 Back axle and gear requirements for the Phantom II Sports Car.
View original record x2066 DA. From R. R.1/M26.10.29. c. to Sg. By. Hs. PHANTOM II SPORTS CAR. X.7770 X.2066 X.7350 It is decided that a hypoid will be required for the back axle. One hundred miles an hour should be…

scan0201 Progress on development projects codenamed 'China' and 'Japan', detailing cylinder heads, manifolds, and a hypoid axle.
View original record HS. From R. COPY. Y2066 R.1/M/11.11.29. c. to Ss. c. to Wor. c. to By. "CHINA" AND "JAPAN". X.5770 X.5230 X.2066 X.5350 We are very delighted with the progress we are now making with "China" and…

scan0202 Development challenges and production delays for the 20 HP. Hypoid Axle.
View original record X2066. R. c. Wor. c. Sg. c. Hs. BY7/G.13.11.29. 20 HP. HYPOID AXLE. ---------------- It is necessary to point out that we are not able to produce Hypoids on new ratios even for the same car in a…

scan0203 Agreeing to make a subframe for a Park Ward Twenty limousine to suit a hypoid axle, with details on the required modifications.
View original record BY. FROM DA/EV. X2066 DA/EV1/M3.12.29. Copy to - HS. 20/25 EXP. ENCLOSED LIMOUSINE - 14-G-4. X. 5380. We wired you to-day as follows "AGREE TO MAKING. X. 2066. "SUBFRAME FOR PARK WARD TWENTY TO SUIT…

scan0204 Letter from the Vacuum Oil Company concerning the lubrication of rear axle hypoid gears and the provision of a sample for testing.
View original record WE DO NOT HOLD OURSELVES RESPONSIBLE FOR LOSSES OR DAMAGE RESULTING FROM DELAY IN FILLING ORDERS CAUSED BY STORM, STRIKES, FIRE, DIFFERENCES WITH WORKMEN OR ANY CAUSE BEYOND OUR CONTROL. TELEGRAPHIC…

scan0205 Screwed backing nut for the Phantom II hypoid pinion thrust bearing.
View original record X2066 By. from Da. c. Sg. Hs. Dal/M5.12.29. PHANTOM 2. HYPOID AXLE. X.2066 X.7350 Herewith we send N.sch.2991. showing the application of the screwed backing nut to the Phantom 2. hypoid pinion thrust…

scan0206 Proposing a testing protocol for a new Hypoid rear axle fitted to a 20 HP car before its standardisation.
View original record To Sg. From Hs. X2066. Hs.3/WJ.16.12.29. c. to Wor. c. to Hy. Dy. HYPOID REAR AXLE 20 HP. X2066 X5350 We are now running the 20 HP. car fitted with a Hypoid rear axle. We should like to know what…

scan0207 Proposed testing of a hypoid rear axle for a 20 HP car.
View original record x2066. HS To Hs. from Sg. Copy to Wor. [strikethrough] BY. Des. [strikethrough] re Hypoid Rear Axle 20 HP. Sg4/E18.12.29 V2066 X5385D. I am in receipt of Hs.3/MJ.16.12.29 and have taken careful note…

scan0208 Testing procedures and standardization for the Hypoid Rear Axle 20/25 HP
View original record To Sg. from Wor. BY. HS. EP. DH. x2066. Wor4/T.19.12.29. x2066 X5350. Hypoid Rear Axle 20/25 H.P. I have consulted the two officials at Derby who sign the Standardisation Sheets, i.e. BY. and EP., and…

scan0209 Letter concerning oil deterioration and gear wear in a Hypoid rear axle.
View original record X2066. Expl. Dept. HS3/MJ. Dec.19th.1929. Messrs. Buck & Hickman,Ltd., 2-4-6-. Whitechapel Road, LONDON.E.1. X7350 X2066. Dear Sirs, As you are aware, in our Hypoid rear axle on the Phantom 11 car we…

scan0210 Letter from a supplier, Buck & Hickman Ltd., responding to a complaint about a product, likely a lubricant for hypoid gears.
View original record x2066. BUCK & HICKMAN, LTD. 2,4 & 6, WHITECHAPEL ROAD, LONDON, E.I. AND AT BIRMINGHAM, MANCHESTER, GLASGOW. TELEGRAMS: "ROEBUCK, EDO, LONDON." CABLES: ROEBUCK, LONDON. CODES: LIEBER'S, A.B.C. WESTERN…

scan0211 Chasing progress on finding alternative oils to Whitmore's Compound for Hypoid Axles.
View original record To Hs. from Wor. By and Hi. X2066 Wor3/T.30.12.29. Some months ago we arranged that we should take steps to find other oils beside Whitmore's Compound for our Hypoid Axles. I believe it was arranged…

scan0212 Testing of various oils for hypoid axles.
View original record X2066 To Wor. From Hs. c. to Hl. By. Hs.2/MJ.30.12.29. WHITMORE'S OIL FOR HYPOID AXLES. Replying to Wor3/T.30.12.29. The position is that we received a sample from Messrs. Wakefields' of an…

scan0213 The results of a 3,000-mile road test using ordinary oil versus Whitmore's oil on a dynamometer.
View original record -2- fact that we have run 3,000 miles and are continuing to run on ordinary oil when the car is used normally on the road, reduces the anxiety when owners cannot obtain a supply of Whitmore's. Owing…

scan0214 Micro-examination report on a failed hypoid gear from an axle.
View original record MICRO-EXAMINATION REPORT. X2066 M680. BY. H11/3.1.30. Laboratory. c-c to Wor. c to Hs. c to Sft. c-c to Sft/Mr. Pendlebury. c-c to Mr. Matthews. (Works Office). Re. Hypoid Gear from Axle which failed.…

scan0215 Letter to Messrs. C.C. Wakefield & Co. Ltd. requesting a sample of aged axle oil for further testing.
View original record x2066 Expl. Dept. x1583 x2066 Hs.2/MJ. Jan. 13th. 1930. Messrs. C.C. Wakefield & Co.Ltd., Wakefield House, 30 - 32, Cheapside, LONDON.E.C.2. Dear Sirs, For the attention of Mr. Evans. We shall be glad…

scan0216 Comparative laboratory tests on oils for hypoid rear axles.
View original record To Wor. From Hs. X2066. Hs.3/MJ.16.1.30. x2066 x4481 x1583 OIL FOR HYPOID REAR AXLES. During the last week or ten days, the chief chemist from Messrs. Wakefields' has spent two days at Derby and has…

scan0217 Enabling the withdrawal of the 20HP hypoid rear axle pinion for inspection.
View original record BY. FROM DA. C. to SG. HS. C. to RHC. X2066 DA1/M21.1.30. X.2066 X.5350. 20HP. HYPOID REAR AXLE. We have looked into the question of enabling the hypoid pinion to be withdrawn for the purpose of…

scan0218 Oil for hypoid rear axles and investigating gear trouble on a Phantom I car from the London Trials.
View original record H S/N...from PN. Copy to Fg. Hs. X2066 PN.2/WT.28.1.30. RECEIVED 28 JAN 1930 OIL FOR HYPOID REAR AXLES. Thank you for your Wor13/W.24.1.30.. Whilst it is satisfactory to be assured that an oil having…

scan0219 Failure of hypoid rear axle gears due to insufficient oil.
View original record W/S. PN. From Wor. c. to Sg. Hs. x2066 Wor.9/T28.1.30. x7960 x2066. OIL FOR HYPOID REAR AXLES. PN.2/WT28.1.30. Referring to above. I thought we had told you all we could about 1-WJ. London Trials and…

scan0220 Causes of tooth-surface breakdown in hypoid rear axles, suspecting cavitation in cold weather.
View original record S/W. Wor... From PN. c. to Sg. c. to Hs. c. to EP. +2066 PN.2/WT29.1.30. +7960 12066 OIL FOR HYPOID REAR AXLES. I have received your Wor9/T28.1.30. on this matter. Yes, you did tell me all you knew…

scan0221 Potential replacement of Whitmore's Compound with a lubricant from Messrs. Price for rear axle lubrication.
View original record X-2066. To Hs. from ROY. c. to HL. (Lab) ROY1/MG31.1.30 At present we are buying Whitmore's Compound for Rear Axle Lubrication, but I gather tests are nearing completion with the Lubricant put forward…

scan0222 The ordering and availability of hypoid gears for 20 HP and 40/50 HP chassis.
View original record WOR. c. Hs. HYPOID GEARS. We ordered the 20 HP. higher ratio hypoids at the same time as we ordered the higher ratio for the 40/50 HP. The 20 HP. gears are now in the Works ready for fitting. The…

scan0223 On the testing and proposed standardisation of Price's Hypoid axle oil.
View original record Wor. From Hs. x2066 Hs.1/MJ.4.2.30. HYPOID REAR AXLES. The Laboratory tests on Price's alternative to Whitmore's for rear axles are now completed and we have run two axles on the dynamometer with this…

scan0224 Letter from Vacuum Oil Company, Ltd. arranging an engineer's visit to Derby.
View original record WE DO NOT HOLD OURSELVES RESPONSIBLE FOR LOSSES OR DAMAGE RESULTING FROM DELAY IN FILLING ORDERS CAUSED BY STORM, STRIKES, FIRE, DIFFERENCES WITH WORKMEN OR ANY CAUSE BEYOND OUR CONTROL. TELEGRAPHIC…

scan0225 Standardisation of an alternative gear compound oil for Phantom II Hypoid Rear Axles.
View original record RR 765 REVISED (10M) (DF 687 4-1-29) BM. 2/5943. X2066. COMPLETED 14.3.30. STANDARDISATION of CHASSIS PARTS. Date 17.2.30. Description of Parts. Price's Gear Compound Oil for Phantom II Hypoid Rear…

scan0226 Testing and performance of alternative gear oils for hypoid rear axle gears.
View original record Hs/AJL.14.2.30. GEAR OIL FOR HYPOID REAR AXLE GEARS. We have for a long time been looking for an alternative oil to Whitmore's for use on Phantom 11 rear axles. Prices' and Wakefields' have been…

scan0227 Compatibility of mixing different lubricant compounds for axles.
View original record WOR. (crossed out) Hs. (crossed out) Hl. (crossed out) x2066 BY3/G.18.2.30. PRICES ALTERNATIVE TO WHITMORE'S COMPOUND. ------------------------------------ There is an important issue which suggests…

scan0228 Request for urgent tests regarding a price alternative to Whitmore's Compound.
View original record X2066 To Hs. from Wor. Wor3/T.19.2.30. PRICES ALTERNATIVE TO WHITMORE'S COMPOUND. Referring to BY3/G18.2.30, this seems very important and urgent. Could you kindly make such tests to clear this matter…

scan0229 Dynamometer testing of Phantom II hypoid rear axles with an alternative compound gear oil.
View original record To Mr. [redacted] from RHC. c.c. Hs. X2066 RHC5/BS21.2.30. RE: PHANTOM. II. REAR AXLES. The following hypoid rear axles have been given the full dynamometer test on Price's Compound Gear Oil. This is…

scan0230 Pinion bearing issue on a hypoid axle during a 20 HP 10,000 miles test.
View original record To Sg. From Hs. c. to Mor. E. c. to Da. Ey. x 2066. Hs.1/MJ.1.3.30. 15840. 20 HP. 10,000 MILES TEST We have received a wire from Hancock to say that the pinion bearing on the hypoid axle is giving…

scan0231 Trouble with the pinion bearing on the hypoid axle during a 20 HP 10,000-mile test.
View original record x2066. Hs To Hs. from Sg. 20 HP. 10,000 Miles.Test. Sg24/E3.3.30 Copy to Wor. B. Da. Bl. I am very much interested to note from Hs.1/MJ.1.3.30 that trouble has developed with the pinion bearing on the…

scan0232 Compatibility and testing of different Hypoid Axle Oils.
View original record 72066 To Wor. From Hs/AJL. c. to Ey. Hl. Hs/AJL.2/WJ.3.3.30. HYPOID AXLE OILS. With reference to Ey.3/G1S.2.30. We are satisfied that Price's Compound can be mixed with Whitmore's Compound without…

scan0233 Hypoid axle failure during a 20 HP 10,000 miles test.
View original record Y2066 To SS. From HS. C. to NOR. H. C. to EV. Da. HS.11/MJ.4.3.30. 20 HP. 10,000 MILES TEST. X5840/c We have heard from Hancock that the failure on the hypoid axle is that the ball bearing on the…

scan0234 Hypoid axle and exhaust system failures during a 25 HP car's 10,000-mile test in France.
View original record To Sg. From Hs. c. to Wor. E. c. to Ev. Da. 25 HP. 10,000 MILES TEST IN FRANCE. We have had two failures on this car which we consider makes it necessary for us to extend the test in France in order…

scan0235 Modifications after failures, sending new parts to France for extended testing, and arranging official reports.
View original record -2- Hs.1/AH.14.3.30.Contd. These failures have been discussed with E., and the Design Committee and modifications have been agreed to. It is thought that these modifications will definitely overcome…

scan0236 Supply of cheaper and simpler hypoid axle oils.
View original record To Sg. from Wor. c to Hs. X2066. Wor5/T.14.3.30. Re Hypoid Axle Oils. I attach copy of a further note from Hs. on this subject, which I am sure you will be pleased to see; it is making this job much…

scan0237 Laboratory report comparing the properties and carrying out ageing tests on three different lubricating compounds for a hypoid axle.
View original record X2066. 'Hs/Mr.Lidsey. c to Dy. Noted HE HL3/EA24.3.30. Laboratory. Lubricating Compounds for Hypoid Axle. Three samples of lubricating compound made by three different firms were submitted. They were…

scan0238 Design committee report on the 10,000-mile test of model 14-G4, discussing modifications to the exhaust pipes and issues with exhaust valves and the rear axle.
View original record R. (Held up). Sg. Wor. By. E. Hs. X2066 Rg. 3/LW.1.4.30. X.2924 X.5840 X.5230 X.5350 X.2066 NINETEENTH REPORT OF DESIGN COMMITTEE. 10,000 Mile Test on 14-G4. The position with regard to the exhaust…

scan0239 Cover note for a letter from Gleason Works listing oils that passed tests for Hypoid axles, with a suggestion to test one on aero engine gears.
View original record Rg. Hs. E. DA. H1. x2066. BY1/N.4.4.30. We attach hereto copy of a letter received from the Gleason Works giving the latest list of oils which have passed the tests in connection with Hypoid axles. It…

scan0240 Letter from Gleason Works enclosing a list of oils which have passed tests with their specifications.
View original record COPY. ----- GLEASON WORKS, 1000, UNIVERSITY AVENUE, ROCHESTER, N.Y. March 20th.1930. Rolls-Royce, Ltd., 14-15 Conduit Street, London, W-1. England. Attention: Mr Bailey. Gentlemen: We enclose herewith…

scan0241 List of lubricants that passed a mechanical running test of a hypoid geared axle.
View original record COPY. March 18. 1930. The following lubricants have successfully passed the mechanical running test of a hypoid geared axle without detriment to either gears or bearings: 1. Whitmore's "Naught"…

scan0242 Continued list of test conditions, detailing load application, pressure, and the use of a cooling fan.
View original record 2. Cont'd. --------- pinion 2" below gear centre line. 3. Full load of 43.8 K.W. applied to generator in the first five minutes. (This results in a transmitted load of approximately 73 H.P. and a…

scan0243 Development and testing of alternative oils for hypoid axles.
View original record OY. From Hs. X2066 Hs.4/MJ.4.4.30 OIL FOR HYPOID AXLES. X1583 X2066 X967 We have been working in conjunction with Messrs. Wakefields' and Prices' in England and have got them to produce an alternative…

scan0244 Letter to C.C. Wakefield & Co. Ltd. requesting the address of their New York representative for an oil supply.
View original record X2066. X1583. Expl. Dept. Hs.5/MJ. April 4th.1930. Messrs. C.C. Wakefield & Co.Ltd., Wakefield House, 30 & 32, Cheapside, London. E.C.2. Dear Sirs, Replying to RGG/LES.2.4.30. Will you please let us…

scan0245 Strategy for gathering information on hypoid rear axle failures from customers.
View original record To C. From Hs/Rn. (Y2066) Hs/Rn.4/MJ.15.4.30. FAILURE OF HYPOID REAR AXLES. X7350 We are anxious to obtain as much information as possible about the hypoid axles that have failed in custermers' hands.…

scan0246 Arranging a meeting with Capt. Malcolm Campbell regarding the failure of hypoid rear axles.
View original record V2066. S/W C10/C17.4.30. Re Failure of Hypoid Rear Axles. Hs/Rm4/MJ15.4.30 We are arranging for someone to call and see Capt. Malcolm Campbell to endeavour to obtain the information you want. C.

scan0247 Dynamometer tests of a hypoid rear axle to induce failure under extreme conditions.
View original record To Wor. from Hs/RM. X 2066. c. Da. Rs. c. Ev. E. c. Hn. Ha/Rml/M323.4.30. x2066 x7350 x5350 Hypoid Rear Axle Failures. We have conducted tests on the dynamometer to try and cause an axle failure by…

scan0248 Axle oil levels, oil types, and investigations into pinion tooth failures.
View original record (2) (1) That low oil level running will not damage the axle. We think that it is impossible for half the oil to vanish without some external evidence of leaks and we have seen no such leaks on the…

scan0249 Verification of oil level in the rear axle of several Phantom II chassis.
View original record Sèvres P/W "Hm" Hs/Rm x2066 Ps6/VA/RJ.29/4/30. Re: Verification of oil level in Rear Axle of Phantom II Chassis In accordance with instructions issued as per Instruction Sheet Hm. 158, the following…

scan0250 Rear axle failures on dynamometer tests due to the type of lubricant being used.
View original record COPY. X2066 X.7350 X.4481 X.967 X.2066 Mx. Sft. EP. ROY. c. Hs/Rm. c. Wor. c. By/NW. BY./4/G.29.4.30. 40/50 HP. REAR AXLE - RE LUBRICANT: I have just heard that we have had two axles fail on the…

scan0251 Ongoing investigation into rear axle failures, specifically concerning Hypoid gears and testing methods.
View original record RHC. From Hs/Rm. HS/Rm.3/MJ.9.5.30. X-066 REAR AXLE FAILURES. We must continue our investigations on the failure of the Hypoid gears. The one important result we have so far achieved is that we have…

scan0252 Gleason's hypoid axle and the metallurgy of gear sets.
View original record X2066. To: Worr C. Rg C. Hy C. By C. Hs. From: Oy. Oy7/DM.9.5.30. Rear Axle. In reply to my cable regarding advice from Gleason's on hypoid axle, Springfield cables :- "GRAY OF GLEASONS ON AQUITANIA…

scan0253 Fault and proposed modification to the 20/25 HP Hypoid Rear Axle.
View original record X2066 By. from Da. c. Sg. Hs. Da3/M7.5.30 X. 2066 X. 5350 20/25 HP. HYPOID REAR AXLE. Replying to Byll/G5.5.30. we understand there is something to be done to one or both the thrust bearings on the…

scan0254 Request to manufacture two experimental nitralloy steel wheels for a Hypoid axle, noting a warning about their performance.
View original record RHC [crossed out] c. Hs. ---------- V2066 BY6/G.12.5.30. Please make up two of the wheels in nitralloy steel (the blanks are already here) for the Hypoid axle. These are suggested as an experiment…

scan0255 Recommending the laboratory examination of failed gears from a hypoid back axle.
View original record RHC HS X2066. BY6/G. 28.5.30. HS Can we arrange this HS The supplied gears have been noted for examination, let us proceed. HYPOID BACK AXLE. I think it is desirable at this stage to hand over a pair…

scan0256 Letter from Tecalemit regarding a special transmission lubricant for hypoid gears.
View original record x2066. [Logo: TAT TRADE MARK] TECALEMIT LIMITED [Logo: THE SOCIETY OF MOTOR MANUFACTURERS & TRADERS] TELEPHONES: WILLESDEN - 5961-2-3. DIRECTORS: E. PIQUEREZ, J. CHRISTE, (FRENCH SWISS). A. PIQUEREZ.…

scan0257 Micro-examination report on a failed Hypoid Gear after a dynamometer test.
View original record Y2066 Micro-Examination Report. M696. By: Hll/EAL4.6.30. Laboratory. c to Hs. Re Hypoid Gear marked "BH25 off Dyno.Test after running 65 miles" G70878/9. This gear was one of three which failed when…

scan0258 List of lubricants that successfully passed a mechanical running test for a hypoid geared axle.
View original record COPY. X2066. March 18, 1930. The following lubricants have successfully passed the mechanical running test of a hypoid geared axle without detriment to either gears or bearings. 1. Whitmore's "Naught"…

scan0259 Page 2 of a document detailing generator load and cooling test conditions.
View original record -2- 3. Full load of 43.8 K.W. applied to generator in the first five minutes. (This results in a transmitted load of approximately 73 H.P. and a total tooth pressure of 3000#). 4. One - 16" Electric…

scan0260 Micro-examination report comparing a failed hypoid gear wheel with two American-manufactured wheels, including hardness tests and material analysis.
View original record Micro-Examination Report. x2066. M697. By c to Hs. H13/EA26.6.30. Laboratory. Re Hypoid Gears. Further to our report M696. We have examined three more gear wheels. One of these was marked "Result of…

scan0261 Sending a special oil from Prices to replace Whitmores compound for testing.
View original record Mx. from Hs/Rn. X 2066. Hs/Rn2/AD10.9.30. X967 We are sending you herewith some special oil from Prices to replace Whitmores compound. We suggest that as a preliminary you try this in the gear box and…

scan0262 Submission of a five-gallon drum of special axle oil for testing against a competitor's product.
View original record X2066. To MX. From Hs/Rm. Hs/Rm.5/MJ.3.11.30. SPECIAL AXLE OIL. We are sending you herewith one five gallon drum of oil (Oline) from the refining Co., South Road, Hansworth, BIRMINGHAM. This is a…

scan0263 Tests on different hypoid rear axle oils, including one from Messrs. Prices' and a new one called Oline.
View original record 42066 To DY. From Hs/Rn. c. to Roy. c. to WOP. c. to MX. Hs/Rn.10/MJ.3.11.30. x967/42066 HYPOID REAR AXLE OIL. Tests have been carried out on the special oil submitted to us by Messrs. Prices'…

scan0264 Rear axle lubricant named 'Oline' and the reputation of its supplier.
View original record X2066. To Hs/RM. from ROY. ROY 6/MG5.11.30. I notice in Hs/RmlO/MJ3.11.30 reference is made to a Rear Axle Lubricant named "Oline" from the Refining Company, South Road, Handsworth, Birmingham. The…

scan0265 Replacement of a non-standard hypoid gear rear axle on re-conditioned chassis 14-G-IV.
View original record X2066. RECEIVED 30 NOV 71 HS Hs. D/BP/OG7.11.30 Re: Chassis 14-G-IV. With reference to the above car which has been re-conditioned by the Repair Dept. for sale and re-numbered GLR-82-X, kindly note…

scan0266 Letter from Oiline Refining Company regarding samples of special gear lubricants for testing.
View original record X 2066 Oiline Motor Oils and Gear Compounds. OILINE OUTFITS (Large and Small) Loaned Free for Gear Compound. All Kinds of Greases. OILS made to suit all Countries, according to climates & conditions.…

scan0267 Current lack of use for a hypoid axle and suggesting its modernization for future use.
View original record X2066. D/BP. From Hs/Rm. c. to CEP. Hs/Rm.1/MJ.14.11.30. 14.G4. Replying to D/BP/OG7.11.30. We really have no use for this hypoid axle. If you will return it to us, however, we might be able to…

scan0268 Issues with hypoid gears, including correspondence with Gleason Works and details of a double heat treatment process.
View original record Hs/Rm. X2066. BY5/J.18.11.30. Picking up of Hypoid Gears. We took up the above matter direct with the Gleason Works, and we attach hereto copy of their reply. They are referring the matter, as we…

scan0269 Letter from Gleason Works responding to scoring troubles with hypoid gears.
View original record COPY GLEASON WORKS 1000 University Avenue, Rochester, N.Y. U.S.A. Rolls-Royce Limited, Derby, England. October 27 1930. Gentlemen: Your reference BY5/G Attention Mr. R. M. Harvey Bailey. Your letter…

scan0270 Request for an analysis of Wakefield's Gearease No.1 oil, to be compared with Whitmore's No.0 Hypoid Oil.
View original record To H1. From Hs/Lid. Hs/Lid.1/MJ.18.12.30. X. 2066. X. 1583. HYPOID GEAR OIL. We are handing to you a sample of Wakefield's Gearease No.1 which is said to be suitable for Hypoid gears. Will you please…

scan0271 Analysis of a sample of Oiline F.J.W. No6 special gear lubricant for hypoid axles.
View original record x2066. To Hl. From Hs/Lid. Hs/Lid.3/KT.27.1.31. HYPOID AXLE OIL. We are handing to you a sample of Oiline F.J.W. No6. Special Gear Lubricant made by the Oiline Refining Co. for hypoid gears. Will you…

scan0272 Secret memo discussing the design and modification of a hypoid rear axle.
View original record BY. FROM DA. SECRET. X2066 DA1/M7.2.31. C. to SG. WOR. C. to HS. HY. RHC. JAPAN 3. HYPOID REAR AXLE. Herewith we send N. sch. 3206. - Rear axle centre casing. This is somewhat modified from the 25HP.…

scan0273 Testing and proposed use of Wakefield's Hypoid Axle Compound as an alternative oil for Phantom II rear axles.
View original record To Ry. From Hs/Ltd. c. to Mr. Sft. Hs/Ltd.8/KT.10.3.31. X.1583. X.2066. ALTERNATIVE OIL FOR HYPOID REAR AXLES. We have recently tested three P.II rear axles on the Dynamometer using Wakefield's Hypoid…

scan0274 Hypoid axle lubrication, detailing issues with Amber Gear Oil and expressing reluctance to change from Whitmore's Compound 'O'.
View original record RECEIVED 31 MAR 1931 ROY c. Hs. c. Hs/Lid. X2066 BY8/G.12.3.31. HYPOID AXLE LUBRICATION. Referring to ROY6/MG.10.3.31. having had two serious setbacks with the Amber Gear Oil supposed to be the same…

scan0275 Suitability and approval process for hypoid axle lubricants.
View original record x-066 To By. from Hs/Lid. c. to Roy. Hs/Lid.3/RT.13.3.31. HYPOID AXLE LUBRICATION. With reference to BY8/G12.3.31., we are entirely in agreement with By. in that we cannot depart from Whitmore's…

scan0276 Specifying the use of Wakefield's oil as an alternative for Hypoid Rear Axles from chassis B-85-M onwards.
View original record Mr. Ey. c. Hs. X2066. Sft/JMW6/B.13.3.31. Alternative Oil for Hypoid Rear Axles. With reference to memo Hs/Lid8/KT.10.3.31. will you please note that Wakefield's oil has been used in axle B-85-M and…

scan0277 Costs and testing of different lubricants for hypoid axles.
View original record x-066- To BY. from ROY. c. to Wor. c. to Hs. c. to Hl. ROY34/MG23.3.31 Hypoid Axle Lubrication BY8/G12.3.31 and Hs/Lid.3/KT13.3.31 I note contents of above, and in reply thereto can only state that,…

scan0278 The investigation and modification of a noisy 20/25HP Hypoid Axle.
View original record To Wor. from RHC. c. Hs. Re: 20/25HP. Hypoid Axle to N.S's 2886 & 2917. The first Hypoid Axle was fitted to 18-G-IV, for the 10,000 miles in France and was rejected by GWH, after 5,000 miles running.…

scan0279 Inquiry about the probability of standardizing the hypoid type axle for the 25 HP Chassis.
View original record S/W. Hs...from PN. Copy C. 82066 PN.10/WT9.6.31. Would you please let me know what is the position regarding the probability or otherwise of the hypoid type of axle being standardised for the 25 H.P.…

scan0280 The standardisation of the hypoid axle for the 25 HP model.
View original record 82066. To PN. From Hs. Hs.6/MJ.16.6.31. HYPOID AXLE - 25 HP. Replying to PN.10/WT9.6.31. The proposal is that the hypoid axle will be standardised when we come to the 'Japan' Series of 25 HP. At the…

scan0281 Correspondence with Price's Oil Company regarding lubricant options for the Phantom II hypoid axle.
View original record AJL 82066, To HS. from ROY. X to WOR c.c to DY ROY6/MG30.6.31 Mr. Brooker, of Price's Oil Company, writes: "In the course of correspondence with "Conduit Street on the subject of a contract for "1932,…

scan0282 Suitability and approval status of various oils for hypoid rear axle lubrication.
View original record To Roy. From Hs/Lid. c. to Wor. c. to By. 82066. Hs/Lid.5/MJ.1.7.31. HYPOID AXLE OIL. With reference to Roy6/MG.30.6.31. Mr. Brooker is entirely misinformed concerning our approval of Castrol 'R' for…

scan0283 Successful testing of an alternative oil for hypoid rear axles.
View original record To R. from Hs/Lid. c. Sg. c. Mor. E. c. Da. Ev. x2066. Hs/Lid.1/AMO.9.31. ALTERNATIVE OIL FOR HYPOID REAR AXLES. X.2066. X.1583. For a long time we have been searching for an oil which can be…

scan0284 Comparing the price of C.C. Wakefield's 'Gearease' against the currently used 'Whitmore Compound' lubricant.
View original record Handwritten: Confidential Handwritten: LID Handwritten: 82066. Handwritten: See me HS Handwritten: N583. To Hs. from ROY. ROY4/MG28.10.31 --------------------- Messrs. C.C.Wakefield suggest for their…

scan0285 Order for a 5-gallon drum of Wakefields Gearease No.1 for hypoid gear rear axles.
View original record X2066. To Roy. from Hs/Lid. Hs/Lid.9/KT.30.10.31. X.1583. X.2066. WAKEFIELDS HYPOID AXLE OIL. Will you please order one 5 gallon drum of Wakefields Gearease No.1. for hypoid gear rear axles. Please…

scan0286 Cost and testing of hypoid axle oils from suppliers Whitmores', Wakefields', and Prices'.
View original record 82066. X.1583. X.2066. To Roy. From Hs/Lid. c. to Wor. Hs/Lid.4/KT.30.10.31. HYPOID AXLE OILS. With reference to your Roy.4/MG28.10.31. in which you quote the prices of Whitmores', Wakefields' and…

scan0287 Standardisation of chassis parts concerning an alternative lubricant for hypoid gear rear axles.
View original record RR 755 (10H) (B459. 24-10-30) 6/3185. X2066 COMPLETED 5.11.31. STANDARDISATION of CHASSIS PARTS. Date 21.9.31. Description of Parts. WAKEFIELDS GEAR EASE NO.1 OIL FOR HYPOID GEAR REAR AXLES. X No.…

scan0288 From ROY to Hs. updating on the work progress and despatch schedule for Gleason 'Peregrine' Hypoids.
View original record X2066 To Hs. from ROY. c. to BY. c. to E. c. to RHC. ROY9/MG26.8.32 You will be pleased to hear that work on the 7 pairs of Gleason "Peregrine" Hypoids, 9/46 ratio, is progressing well, and the…

scan0289 Cover note for a list of approved lubricants for Hypoid Gears submitted by the Gleason Co.
View original record Hs. x2066 BY/Mtn14/N.4.10.32. Re: Hypoid Axles. We attach hereto a list of approved lubricants for Hypoid Gears which has been submitted to us by the Gleason Co., BY/Mtn.

scan0290 Letter from the Shell Group requesting information on the lubrication of Hypoid gears.
View original record r 2066 ST HELENS COURT, GREAT ST HELENS, LONDON, E.C.3. 19th April 1933. E.V.Hives Esq., c/o Experimental Department, Messrs Rolls-Royce Ltd., DERBY. A485/33 Dear Mr Hives, I do not suppose you…

scan0291 Page 2 of a letter from H. Mitchell to E.V. Hives requesting a meeting.
View original record E.V.Hives Esq. -2- 19.4.33. If you could spare me a few minutes one day next week, I should be much obliged. Yours sincerely h. mitchell NM/V

scan0292 Letter arranging a meeting to discuss the lubrication of hypoid gears.
View original record Y - 266n. Hs.1/MJ.5.5.33. 5th. May 1933. N.Mitchell Esq., St. Helens Court, Great St. Helens, LONDON.E.C.3. Dear Sir, Replying to your letter of April 19th. it would be convenient for me to see you at…

scan0293 Delays in coordinating gear grinding with an external company and proposing a solution.
View original record X1721 BY. from ROY. c. to Hs. e. to Ws. (Dictated 12.12.23) ROY1/MG14.12.23 I should be glad if arrangements could be made to notify us earlier of the various Gears required for grinding by the Gear…

scan0294 Special material claimed to be useful for providing noiseless gears.
View original record X1721 PN4/DN/1.5.24. TO Hs. FROM P.N. I am sending to you particulars of some special material for which much is claimed in connection with its use for providing noiseless gears. I think this appears…

scan0295 Material 'Celeran' for gears, concluding it offers no advantage over Phosphor Bronze.
View original record X/721 Hs. BY14/H. 12. 5. 24. "CELERON" GEARS. I sent the piece of Celeron to Messrs Norths as suggested, but I had in my mind that they had already submitted to us some similar material. Their reply…

scan0296 First-speed gear trouble in 4-speed gearboxes of Lanchester, Daimler, and Riley cars.
View original record To [redacted] from AJS. c.c. to HS. X1724 AJS2/DB.20.3.25. Re Gear Boxes. In the course of conversation of the writer with Messrs Orcutt and Anderson, the respective Proprietor and Works Manager of…

scan0297 Comparative analysis of Daimler and Lanchester gearbox designs with annotated diagrams.
View original record AJS2/DB.30.3.25. -2- SHAFT TURNED DOWN BETWEEN TWO BANDS OR SPLINES NO TOUCHING BETWEEN GEAR & SHAFT HERE The Daimler box has since been re-designed, and we believe, from the parts which were seen,…

scan0298 Gear and gearbox design, covering issues with unmeshing and comparing various construction methods.
View original record -3- AJS2/DB.20.3.25. Anderson seemed to think that more trouble had been experienced through gears wanting to become unmeshed, since the more usual introduction of intermediate bearings, and thought…

scan0299 Comparison of ground and cut gears, and an investigation into fitting plain bearings to gearboxes instead of ball or roller types.
View original record -4- AJS2/DB.20.3.25. work, and one of the first points to be dealt with was the comparison of the all-round relative merits of the ground and cut gears, and it was judged from conversation, that…

scan0300 Letter from E. Reinbold to E. W. Hives regarding a new patented 'Andrade differential'.
View original record N721 E. REINBOLD, M. E. 220 WEST 71st STREET NEW YORK, N. Y. 4/3/26. Dear Sir: Mr. M. Olley, the chief engineer of your Springfield factory, has requested me to mail you the enclosed circular which…

scan0301 Information on S.A.E. special steel 3440 used in Hudson and Essex gearboxes.
View original record X1721 X1721 To BY. from HDY. c. Wor. E. Hs. HDY.1/HP.26.2.34. Steel for Gearbox Gears. With reference to the remarks in Hs/Rm.14/23.2.34 about the S.A.E. special steel 3440 used on the Hudson and…

scan0302 Product for testing, referencing an attached letter and booklet on 'Keenolisation'.
View original record X1721 By. Hs/Rm.4/KW.30.5.34. With reference to the attached memo., we have been trying to get hold of some of this stuff for quite a considerable time. If you can obtain some for us we will certainly…

scan0303 Investigating a complaint about the quality of 3rd speed helical gears supplied by The Gear Grinding Co. Ltd.
View original record To Hs. and By. From RHC. Rm 1152 RHC/GL.1/MJ.1.2.37. Re. 3rd. Speed Helical Gears, Ground by the Gear Grinding Co. Ltd. We have investigated the complaint outlined in Roy/AW.26/IB.26.1.37 and although…

scan0304 Preliminary report on improving the quietness of 25/30 HP engine timing gears and Phantom gearbox gears.
View original record To RHC. c. to Hs. [crossed out] c. to Rm. c. to Cyr. [crossed out] 1152 25/30.HP. ENGINE TIMING GEARS & PHANTOM GEAR BOX GEARS. Preliminary Report. The Test Department request that the standard of…

scan0305 List of improvements and standards for gear manufacturing, grinding, and testing.
View original record -2- RHC/AEC.1/LS.3.4.37. consistent with the variations in the amount of stock, (accuracy of .0001 to .0002 is required.) Improvement can be made on the following points:- 1. Hobbing deeper for more…

scan0306 Report page discussing the accuracy of broaches and their responsibility for noise.
View original record -3- RHC/AEC.1/LS.3.4.37. Present day broaches are becoming very accurate. Gears do not produce all the noises heard, but they are largely responsible. Results of improvements made will be given in a…

scan0307 Improving the quality and reducing the cost of chassis gear production.
View original record To Rm. From RHC. CHASSIS GEAR PRODUCTION. Referring to our brief conversation on the above subject, we share your anxiety and realise that something must happen quickly in order to have some reduction…

scan0308 Technical memorandum on achieving silent gearing in timing and gearbox systems.
View original record RHD E.S. W.A/Mr.Ashby. C.Hms. O.Rm. G. NY/GS. F.J. HARDY Any comments? 1152 SILENT GEARING. Referring to "timing" and "gear box" gears, there are certain points which are essential in order to obtain…

scan0309 Gear generating purposes, specifications, and methods for achieving gear quietness.
View original record - 2 - (c) cont'd. for generating purposes on the reduced diameter fixed by the eccentric hub, but will be "divided" or "indexed" on its own centre to its correct number of teeth. The effect of this…

scan0310 Gear eccentricity, tip clearance, and helix accuracy for silent gearing in the Phantom III.
View original record [REDACTED] [REDACTED] [REDACTED] C. Rm. Engines. [REDACTED] 115^2 BY.6/C/31.8.37. F T H SILENT GEARING. G.82925. Further to BY.6/C.31.8.37. the amount of eccentricity between the gear and the hub,…

scan0311 Blueprints for the Phantom III Idler Gear and a request for production.
View original record HPS. c. Rm. 1152 BY/NS.5/G.3.9.37. PHANTOM 111 - IDLER GEAR. -------------------------- We send you herewith two blueprints of each of the following :- Ex.S.44 Hub Idler Gear. 1 off. S/M. Ex.S.45…

scan0312 Blueprints for Phantom III Idler Gear components and a request to produce six sets.
View original record c. Rm/FJH. 1152 BY/NS.5/G.3.9.37. PHANTOM III - IDLER GEAR. We send you herewith two blueprints of each of the following :- EX.S.44 Hub Idler Gear. 1 off. S/M. EX.S.45 Plate - Retaining Idler Gear. 1…

scan0313 Necessary primary effects and permissible errors for producing silent gearing.
View original record By. To. WB/Mr.Ashby. c. Hs. c. Hm. c. BY/CS. c. BY/TWD. FTH 1152 RHC/McW.1/FM.3.9.37. RE: SILENT GEARING In our efforts to produce silent gearing it may be noted the primary effects which were…

scan0314 Gear tooth design, profile errors, and pressure angles, referencing the Phantom III constant mesh pinion.
View original record -2- HHC/Mer.1/Fh.S.9.57. is in sympathy with the offending member of the pair. (e) The effect of errors in pressure angle, providing that good bedding of teeth is obtained, appear to give a minimum of…

scan0315 Opinion regarding the modification of tooth form for involute transmission gears.
View original record -3- RHC/McW.1/FH.3.9.37. It is our opinion that providing the fundamental poperties inherent in producing a good involute gear are mintained, modification to tooth form has not been found to be…

scan0316 Responding to a controversy and clarifying previous points on the subject of silent gears.
View original record RHO. c. Rm. ~~Des~~ BY.1/G.22.9.37. SILENT GEARS. I did not intend to start a controversy by my memo on the above subject. In RHC/Mc.W's reply the first page and half is irrelevant, paragraph 2…

scan0317 Reprinted article on the subject of automobile worm gearing.
View original record AUTOMOBILE WORM GEARING By W. A. TUPLIN, M.Sc. ASSISTANT CHIEF ENGINEER DAVID BROWN & SONS (HUDD.) LTD., HUDDERSFIELD ISSUED BY— DAVID BROWN & SONS (HUDD.) LTD., HUDDERSFIELD REPRINTED FROM “THE…

scan0318 Comprehensive survey on worm gearing for modern automobile drives.
View original record 1 WORM GEARING. A Comprehensive Survey of Modern Automobile Drives. By W. A. Tuplin, M.Sc. ALTHOUGH worm gears have long been used for the rear-axle drives of heavy automobiles, knowledge of their…

scan0319 Analysis of worm gear design, contact mechanics, load capacity, and comparison with bevel gears.
View original record [Page 2] Worm Gearing—contd. change its shape and its length, and this it continues to do until tooth and thread lose contact altogether, the line of contact having gradually diminished to zero length…

scan0320 Detailed analysis of worm gearing, covering efficiency, design considerations, materials, and manufacturing processes.
View original record PAGE 4, COLUMN 1: 4 Worm Gearing—contd. It must be emphasised that this comparison has no pretension to rigour but it does bring out the fundamental reason for the relatively high torque capacity of a…

scan0321 Technical explanation of the design, forces, contact, lubrication, wear, and pitting in worm gear assemblies.
View original record 6 Worm Gearing—contd. Resultant force perpendicular to axis of worm wheel = √(S² + E²) The force (E) is equal in magnitude to the end thrust on the worm, but since its line of action is displaced from…

scan0322 Page discussing the principles, mounting, and standardization of worm gearing.
View original record 8 Worm Gearing—contd. in trolley buses operated by various undertakings shows that a life of 250,000 miles may be expected and in some instances a mileage of 400,000 has been obtained. As the…

scan0323 Letter from gear-maker David Brown to Bentley Motors regarding a leaflet on 'Automobile Worm Gearing' and an invitation to meet at the Motor Exhibitions.
View original record DAVID BROWN & SONS (HUDD) LTD. THE WORLDS LARGEST GEAR MAKERS HUDDERSFIELD ENGINEERS IRON STEEL AND BRONZE FOUNDERS ON ALL GOVERNMENT LISTS FOUNDED IN 1860. TELEPHONE: 3500 HUDDERSFIELD (6 LINES)…

scan0324 The testing and noise comparison of unground first-speed gears for Bentley models.
View original record By. from Rm/Gry. Da. Hdy. RHC. 1132 Rm/Gry.2/AP.14.12.37. 1st. SPEED GEARS. A short time ago RHC. made for us two pairs of Bentley first speed unground gears. The first of these was fitted to 50.BN.…

scan0325 Modification to the Wraith gear lever knob to eliminate rattles.
View original record DY/WS. [struck through] c. Rm. c. De/Engr [struck through] ------------- 1152. DA.5/G.10.3.38. WRAITH - GEAR LEVER KNOB. [Handwritten note 'Htec' across title] To overcome the rattles in the knob of…

scan0326 Bentley engine gears, comparing unhardened gears against 45° helix angle gears.
View original record To. By & Rm...From RHC/SB. 1152. RHC/SE.1/MC.1.4.38. Handwritten: By. Unhardened gears. O.K. on 15000 miles. [Initials] Rm BENTLEY ENGINE GEARS With reference to By.7/G/29.3.38., we would state that…

scan0327 Modification notice for the B.111 and B.50 change gear mechanism as an economy measure.
View original record 1152-1 BT/NS. c. Rm. ------ DA/14/G.26.4.38. B.111 and B.50 CHANGE GEAR MECHANISM. Please receive herewith :- G.CD.632 Modfn. to Change Gear Lever. This scheme modifies the push rod guide which is now…

scan0328 Suggestion to improve the Bentley 50 and 111 gear change lever by adding a hard rubber bush.
View original record BE/MS. c. Rm. 1152 DA.10/G.10.6.38. I.H.W Mok Quo BENTLEY 50. and 111. GEAR CHANGE LEVER. Referring to the criticism of the Bentley gear lever, spring loaded in one direction in Rm/IMW.1/MH.19.5.38,…

scan0329 Proposal to modify the change speed gear on the Wraith III to address a knocking complaint.
View original record BY/HS [crossed out] c. Rm. ------- F.J.H. 1152 DA.1/G.11.6.38. WRAITH III - CHANGE SPEED GEAR To overcome the complaints of knocking between the operating shaft and its bearing sleeve, due to the…

scan0330 Findings on change speed mechanisms, including issues with gates, stops, and engine oscillation.
View original record 1152 To Hdy. from Rm/Gry. Rm/Gry.J/MH.30.6.38. Findings on Change Speed Mechanisms unaffected by rotational hysteresis in engine mounting. (1) Gate inside box. (a) If this touches the pendulum metal…

scan0331 Letter regarding the return of two pairs of loaned axle gears.
View original record Rm/Gry6/R. 1152. 12th October, 1938. Messrs. Lendrum & Hartman, Old Oak Lane, Willesden Junction, N.W.10. (For the attention of Mr. Chiltern.) Dear Sirs, We are returning to you the two pairs of axle…

scan0332 Arranging the return of two sets of loaned axle gears.
View original record 1152. To Hd/FC. Rm/FD.1/JH.13.10.38. We are sending into the stores today 2 sets of axle gears. Will you please return these to Messrs. Lendrum & Hartman, Buick Works, Old Oak Lane, Willesden,…

scan0333 The return of borrowed parts from Lendrum & Hartman.
View original record 1152. Roy/JT. from Rm/Gry. Rm/Gry2/R.17.10.38. With reference to the attached invoice from Lendrum & Hartman these parts were only borrowed, and have already been returned to them. Rm/Gry.

scan0334 Comparative tests on Phantom III idler gears to determine torque and ageing effects.
View original record 1152 HL/GLT. from BY/SB. c.c. BY. c. Rm. BY/SB.6/G.10.6.39. PHANTOM III - IDLER GEARS. We confirm having handed to you the following :- (1). Two idler gears with a number of teeth stripped off. (2).…

scan0335 Paper on ground form finishing hobs and gear manufacturing presented at a Society of Automotive Engineers meeting.
View original record Gears General, 1152. (15) PREPRINT.--Paper to be presented at the Annual Meeting of the Society of Automotive Engineers at the Book-Cadillac Hotel, Detroit, Mich., Jan. 15 to 19, 1940. Printed to…

scan0336 Page discussing the manufacturing of accurate and quiet gears, focusing on hobbing techniques and hob tolerances.
View original record - 2 - Figure #1 shows a method of calculating the arc of contact that any two mating gears have; also, the length of contact that the involute curve has with its mating gear. In order to produce gears…

scan0337 Page discussing the design, calculation, and testing of hobs for generating gear teeth.
View original record - 3 - fixtures will also be of unlimited value to the users of hobs to control the quality of tools coming into their plant. To design and use a hob intelligently, it is necessary to understand the…

scan0338 The operation and use of hob lead checkers and contour testing fixtures for gear manufacturing.
View original record - 4 - Only two simple operations are required to set this machine up for a given load, the proper change gears for driving the spindle and the Sine-Bar setting which is determined by the axial lead of…

scan0339 Guide on the correct procedure and importance of sharpening hobs, page 5.
View original record -5- SHARPENING OF HOBS QUENTLY. The most important rule for the maintenance of hobs is SHARPEN FRE- It is always, and especially in the case of hobbing, more economical to resharpen more often,…

scan0340 Hob centering gages and the causes and remedies for visible flats on gear teeth.
View original record - 6 - HOB CENTERING GAGES The function of hob centering gages is supposedly to make the gear teeth symmetrical or "balanced". Centralizing either a hob tooth or space with the common center line…

scan0341 The process and importance of hob setting for precision gears.
View original record - 7 - HOB SETTING FOR PRECISION GEARS Many users of hobbing machines fail to realize the full importance of proper hob setting. The necessity of having the hob running true, and centralizing it on a…

scan0342 Page detailing gear hobbing techniques, machine condition, and hob positioning.
View original record - 8 - of the individual hob tooth errors. For example, suppose a hob has 60 teeth, 25 of which comprise the cutting zone when producing a certain gear; of the 25 teeth, perhaps 10 serve as roughin…

scan0343 Page describing the nomenclature of hob terms, noting that certain photographs are excluded from mimeographed copies.
View original record - 9 - Figure #22 shows the nomenclature of hob terms. The terminology shown here is generally used in connection with hobs, and is followed as standards by all hob manufacturers. Note: Figures 8, 9,…

scan0344 Diagrams and tables detailing involute gear design, hobbing, and manufacturing limits.
View original record COMMON TERMS IN INVOLUTE GEAR DESIGN Fig. #1 Diagram labels: Pitch Point, Base Circle, Pitch Line, PA, Common Tangent, Driver, Angle Of Recess, Arc Of Action With Approach, Full Arc Of Action Without…

scan0345 Calculations and diagrams for gear hobbing, including setup, modification, and teeth contact.
View original record TO FIND THE EXTREME END POSITION FOR SETTING A HOB WHEN CUTTING SPUR GEARS. Fig. #5 Rь = BASE RAD. R = PITCH RAD. R₀ = OUTSIDE RAD. C = DISTANCE BELOW PITCH LINE ON HOB TO LAST POINT OF CONTACT Φ =…

scan0346 Inspection charts for a gear hob, showing lead and modified tooth form.
View original record Left Chart: TYPICAL LEAD INSPECTION CHART OF GEAR HOB. Measurements: .0005, .0001. Vertical Axis: +4, +3, +2, +1, 0, -1, -2, -3, -4. Caption: Fig. #10. Right Chart: CONTOUR CHART SHOWING MODIFIED HOB…

scan0347 Formula sheet for setting a hob pressure angle checking fixture, with examples for straight and spiral gash hobs.
View original record HOB PRESSURE ANGLE CHECKING FIXTURE #T-464 PAGE 2 FORMULA FOR SETTING FIXTURE FOR EXTREMELY ACCURATE CHECKING A CORRECTION FOR THE THREAD ANGLE OF THE HOB SHOULD BE MADE, AS IN THE FOLLOWING FORMULAS,…

scan0348 Diagrams illustrating gear hobbing, showing cutting zones, lines of action, and hob teeth.
View original record Fig No 16, Fig No 17, LINES OF ACTION, GENERATING ZONE, TOTAL CUTTING ZONE, GENERATING PLANE, HOB, BLANK, TEETH AT EITHER END NOT IN USE, ROUGHING ZONE, HUB OR PROOF DIAMETER, Fig 18 SHOWING HOB TEETH…

scan0349 Guide for estimating the time required for hobbing gears, with formulas and a cutting speeds table.
View original record Estimating Time Required for Hobbing Gears X - The distance hob must feed from time it starts cutting until it reaches full cutting depth. N - Number of teeth in gear. Y - Length of face of gear or…

scan0350 Chart and diagrams detailing the recommended length and features of worm gear hobs.
View original record RECOMMENDED LENGTH OF WORM GEAR HOBS CHART (FIG. # 21): LEFT Y-AXIS: AXIAL CIR. PITCH OF HOB. RIGHT Y-AXIS: AXIAL DIA. PITCH OF HOB. X-AXIS: NUMBER OF TEETH IN GEAR. CHART NO 9 END VIEW OF HOB: SPACE…

scan0351 Use of high helix angle gears for reducing noise in gearboxes.
View original record 1152 Ev. from Rm. Rm.9/ML.5.4.40. It appears that most of the Americans are now using 40 - 45 deg. helix angle gears. They would not use these angles if they did not get something out of them, in the…

scan0352 New aluminium timing gears based on the Lincoln Zephyr camshaft wheel design.
View original record File 1152 To Rm. c.c. to Rm/HH. Jnr.1/JH.10.8.40. C.T.S. Make sure we get the analysis. Rm Aluminium Timing Gears. We send herewith PL.321. This is a copy drawing of the Lincoln Zephyr camshaft wheel.…

scan0353 Requesting a review of documents PL.280 and PL.373 concerning the second-speed synchromesh.
View original record [Handwritten]: 1/52 To Rm/FJH. Ev/Tln.4/JH.21.10.40. Will you please get hold of PL.280 and PL.373 some-time and look at the second speed synchromesh. I think what I have done is up to date, but I am…

scan0354 Cover letter from Rm. to Lov. regarding an order for gears and an attached reply from Olley in America.
View original record To Lov. from Rm. 1152 Rm.1/ET.5.6.41. With regard to the order for gears concerning which we have been corresponding with Olley in America, will you please note that we have now had the attached reply…

scan0355 Requesting assistance in obtaining sample gears that have arrived at Prestwick Aerodrome.
View original record To D/BP. from Rm. 1152 Rm.1/ET 23.7.41. We have just received the attached and gather that these sample gears have arrived at Prestwick Aerodrome. We are anxious to receive them as soon as possible…

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