Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | Test results for a pump's performance at varying RPMs, pressures, and oil temperatures. | ||
| View original record | TEST D (CONT'D) [26°C] 1000 R.P.M 10 LB/▢" 1 GALL. IN 50 SECS 40 LB/▢" 1 " " 44 2/5 " 60 LB/▢" 1 " " 41 1/5 " 100 LB/▢" 1 " " 38 3/5 " 1.64 [38°C] 1500 R.P.M 10 LB/▢" 1 GALL IN 38 SECS 40 LB/▢" 1 " "… | ||
| scan0002 | Extract detailing the assembly of 'E' section parts for chassis 1. EX. | ||
| View original record | R.R. 285 A (100 T) (S.F. 575, 16-4-19) G. 2354. X.3449 Extract from RHC1/LG30.6.19. RE CHASSIS 1. EX. The above chassis is now complete and it has been assembled as follows:- "E" SECTION to S.S. No.… | ||
| scan0003 | Modifying oil pumps to reduce noise, discussing recesses and gear tooth obliquity. | ||
| View original record | To EH. from E. c. to CJ. c. to BN. c. to BY. c. to DA. c. to EFC. RE OIL PUMPS. X.3449. It will be remembered that at one time we had trouble with noisy oil pumps, due to the oil being imprisoned in… | ||
| scan0004 | The design of oil pumps, specifically their gear obliquity and history of no noise complaints. | ||
| View original record | To E. from EH. c. to Bn. c. to BY. c. to Da. EH2/LG29.8.19. RE OIL PUMPS X.3449. The present oil pumps we are using on the chassis have no small recess opposite the point of the meshing of the teeth.… | ||
| scan0005 | Forwarding a query about the 40/50 chassis oil sump pipe for further review. | ||
| View original record | X3449 To Hs. from R. c. to CJ. R2/G23.5.21. X.3449 - RE 40/50 CHASSIS - OIL SUMP PIPE. I attach herewith copy of memo received from SA. in regard to the above. Would you kindly look into this matter… | ||
| scan0006 | Letter from C. de Salamanca to CJ. London regarding a design fault with the unprotected sump pipe. | ||
| View original record | From C.de Salamanca. Ref Sa/Ao/Al/11. MADRID 10th.May 1921. To CJ. London. from Sa. RE SUMP PIPE. This is the pipe that goes from the pump to the Carter. As it is unprotected it breaks very easily… | ||
| scan0007 | Extract from a report on oil pump noise issues for cars intended for America. | ||
| View original record | S.S. Hla (100 T) (S.H. 798. 10-12-20) G. 2948 X.3449 Extract from EP/Thn6/H6.7.21. X.3719. RE CARS FOR AMERICA. Item 13. Oil Pumps. The following is an extract of Mr. Platford's report on this… | ||
| scan0008 | Extract regarding a suggestion to use skew gears for oil pumps on cars for America. | ||
| View original record | X.3449 Extract from Hs7/LGS.7.21. RE CARS FOR AMERICA. X.3917. Item 13 Oil Pump. X.3449 We will certainly try Springfields suggestions of skew gears for oil pumps. We think this is good. Hs. | ||
| scan0009 | The decision not to test the Cliffords oil pump and to return it. | ||
| View original record | x3449 BY. from Hs. c. to Wd. Hsl/LG20.7.21. CLIFFORDS OIL PUMP. We do not consider that it is any use going to the expense of testing this oil pump, as we are never likely to use it. We are returning… | ||
| scan0010 | Standardisation of chassis parts concerning the improvement of the oil pump cover design. | ||
| View original record | R.R. 755 (10H) (SL 72 18-7-23) MP 274954s. X3449 - Completed 27-10-23 STANDARDISATION of CHASSIS PARTS. Date 24.9.23. Description of Parts. OIL PUMP COVER. Origin: To improve design. Experimental Test… | ||
| scan0011 | Follow-up memo regarding the testing status of pumps manufactured by Mr. E. Feuerheerd. | ||
| View original record | To Hs. from Py. X4677 Py2/Av/D2.11.27. Re: Mr. E. Feuerheerd's Pump. ----------------------------- With reference to our Py7/Av/D20.10.27, on the 21st October we sent you 2 Pumps manufactured by the… | ||
| scan0012 | Covering memo forwarding a letter and enclosure from Mr. E. Feuerheerd regarding his pump. | ||
| View original record | X4677 To Hs. from Py. Py3/Av/D5.11.27. Mr. E. Feuerheerd's Pump. -------------------------- We enclose a letter, dated the 4th inst., together with the enclosure, which we have received this morning… | ||
| scan0013 | Letter to E. Feuerheerd concerning a pump report from the Daimler Company and a request for an extension. | ||
| View original record | Py5/Av/D5.11.27. 5th November 1927. E. Feuerheerd, Esq., c/o James A. Malcolm, Esq., 47, Victoria Street, S.W. 1. Dear Sir, We are in receipt of your further letter of the 4th inst. together with the… | ||
| scan0014 | Letter from James A. Malcolm enclosing a Daimler report on his lubricating pump and inquiring about test results. | ||
| View original record | FROM JAMES A. MALCOLM. TELEPHONE: VICTORIA 2531. 47, VICTORIA STREET, LONDON, S.W.1. November 4th, 1927. Messrs. Rolls Royce Ltd., 14, Conduit Street, W.1. For attention of Mr. Pooley. Dear Sirs, I… | ||
| scan0015 | 40/50 Oil Pump tests, with comparison data for a Feuerheerd pump. | ||
| View original record | 40/50 OIL PUMP TESTS FOR COMPARISON WITH FEUERHEERD PUMP A/ DELIVERY AT 100 R.P.M. (Test at 22°C) (Columns headed:) 40/50 FEUERHEERD 100 R.P.M AT 10 LB/□" PRESSURE, 1 GALLON IN 4 MIN 3 SECS. 4 MIN 50… | ||
| scan0016 | Comparison test report of a Feuerheerd pump against a Daimler type gear pump, carried out by Daimler. | ||
| View original record | COPY OF TEST CARRIED OUT BY THE DAIMLER COMPANY LIMITED AT THEIR WORKS AT COVENTRY. -------------------- 26/10/27. COMPARISON OF FEUERHEERD PUMP SUPPLIED BY GENERAL HOLDEN WITH M. Q. & V. 20 DAIMLER… | ||
| scan0017 | Test results for a Feuerheerd oil pump at various RPMs and pressures. | ||
| View original record | →FEUERHEERD OIL PUMP← TEST A:- AT 100 R.P.M. 100 R.P.M AT 10 LB/□" PRESSURE, 1 GALL IN { 4 MIN 50 SEC { 4 MIN 40 SEC 100 R.P.M " 40LB/□" " 1 " " { 4 MIN 45 SEC { 4 MIN 55 SEC 100 R.P.M " 60LB/□" " 1 "… | ||
| scan0018 | Request for a progress update on pumps supplied for Mr. Feuerheerd. | ||
| View original record | L9677 To Hs. from Py. Py7/Av/D6.12.27. Re: Mr. Feuerheerd's Pump. -------------------------- Mr. Feuerheerd telephoned us yesterday asking if we can report progress with regard to the pumps which we… | ||
| scan0019 | Requesting an extension of one week to complete testing on Mr. Feuerheerd's pump. | ||
| View original record | X4677 Py. from Hs. Hs4/LG9.12.27. RE. MR. FEUERHEERD'S PUMP. We regret that we have not been able to report on this pump but we should like to be able to keep it for another week in order to complete… | ||
| scan0020 | Test report comparing a Feuerheerd oil pump against a standard RR gear pump. | ||
| View original record | Y4677 To Py. from Hs/Rm. Hs/Rm2/LG22. 12. 27. FEUERHEERD OIL PUMP. X8160 We have now completed a series of tests with this pump. It will be appreciated that the tests carried out by the Daimler Co. do… | ||
| scan0021 | Page 2 of a report comparing the performance and weight of an RR pump versus a Feuerheerd pump. | ||
| View original record | contd :- -2- light loads but more noisy under high pressures at high speeds. Feuerheerd delivery less regular and sets up vibrations in the pipes. The delivery is rather spasmodic under high… | ||
| scan0022 | Blueprint diagram of a Feuerheerd oil pump. | ||
| View original record | XW577, 22-12-27, DIRECTION OF ROTATION, DIRECTION OF OIL FLOW, OUTLET PORT, INLET PORT, FEUERHEERD OIL PUMP, ROLLS-ROYCE LTD, PRINT, 22 DEC 1927, DEPT. | ||
| scan0023 | Letter from Stothert & Pitt Ltd inquiring about trials on a rotary displacement pump. | ||
| View original record | X3449 STOTHERT & PITT, LTD ENGINEERS. HEAD OFFICE & WORKS: BATH. LONDON OFFICE 38, VICTORIA ST., S.W. TITAN FOR BUILDING HARBOURS Telegrams: STOTHERT SOWEST LONDON. PHONE No 1849 VICTORIA, LONDON.… | ||
| scan0024 | Follow-up letter from Stothert & Pitt Ltd regarding proposed trials for a small rotary displacement pump. | ||
| View original record | STOTHERT & PITT, LTD ENGINEERS. HEAD OFFICE & WORKS: BATH. LONDON OFFICE 38, VICTORIA ST., S.W. Telegrams: STOTHERT SOWEST LONDON. PHONE No 1849 VICTORIA, LONDON. Telegrams: STOTHERT BATH. PHONE Nos… | ||
| scan0025 | Follow-up letter from Stothert & Pitt Ltd concerning a Rotary Displacement pump sent for examination. | ||
| View original record | x3449. STOTHERT & PITT. LTD ENGINEERS. LONDON OFFICE 38, VICTORIA ST., S.W. Telegrams: STOTHERT SOWEST LONDON. PHONE Nº 1849 VICTORIA, LONDON. HEAD OFFICE & WORKS: BATH. TITAN FOR BUILDING HARBOURS… | ||
| scan0026 | Information regarding a Rotary Displacement pump from Messrs. Stothert & Pitt Ltd. | ||
| View original record | To E. from Hs/Rm. X 3449. Hs/RmL/LG12.12.28. We have received one or two letters from Messrs. Stothert & Pitt Ltd. about a Rotary Displacement pump. We cannot ever remember seeing this pump or… | ||
| scan0027 | The testing of a Stothert & Pitt patent rotary pump for oil pumping in car engines. | ||
| View original record | X3449 Rm. FROM E. El/M17.12.28. re. MESSRS STOTHERT & PITT. X3449 Re. your memo. Hs/Rml/LG12.12.28., R. agreed to test a Stothert & Pitt patent rotary pump as regards suitability for use on car… | ||
| scan0028 | Recommending a modification to address seizing and scoring of 'SS' engine oil pump bearings. | ||
| View original record | To BY. from Hs. c. to E. c. to Wor. [Handwritten top center]: X7160 Hs2/LGl.1.29. 'SS' ENGINE - LUBRICATION OF OIL PUMP BEARINGS. [Handwritten over title]: X7160 [struck through] X7165 We have had… | ||
| scan0029 | Modification to Oil Pump Gears, specifically showing oil holes, for Super-Sports models. | ||
| View original record | DRIVING GEAR. 3.100 -25 .540 CTR. ±10 .098 DIA (RIGHT THRO'). .100 +.20 .500 DIA. +3 +0 .062 DIA. .200 CTR. ±10 .375 CTR. ±10 .062 DIA. SWEAT MILD STEEL DISC (.075 THICK) IN POSITION V486. DRIVEN… | ||
| scan0030 | Oil pressure characteristics and issues with the S.S. relief valve. | ||
| View original record | To E. from HS/Rn. X7160. Hs/Rn.2/MJ.12.9.29. x7205 x-y160 S.S. RELIEF VALVE. Attached is a curve shewing the characteristics of the S.S. oil pressure. The S.S. oil pump is 7% larger than the Phantom.… | ||
| scan0031 | Graph plotting S.S. Oil Pressures against engine RPM for various valve and spring configurations. | ||
| View original record | S.S. OIL PRESSURES. ENGINE No S.S.15. STANDARD OIL PUMP. OIL TEMPERATURE = 60°C. STD. RELIEF VALVE. WEAK SPRINGS (V694). DURALUMIN BALL VALVES & WEAK SPRINGS (V694). DURAL. BALL & WEAK SPRING IN L.P.… | ||
| scan0032 | Letter from Stothert & Pitt regarding the trial and specifications of a rotary displacement pump. | ||
| View original record | X3449. STOTHERT & PITT, LTD. ENGINEERS. HEAD OFFICE & WORKS: BATH. LONDON OFFICE 38, VICTORIA ST., S.W. Telegrams: STOTHERT SOWEST LONDON. PHONE No 1849 VICTORIA, LONDON. TITAN FOR BUILDING HARBOURS… | ||
| scan0033 | Letter to Messrs. Stothert & Pitt, Ltd. regarding unsatisfactory test results of a lent pump. | ||
| View original record | X3449 Expl. Dept. Hs/Rn.6/MJ. Sept.5th,1930. Messrs. Stothert & Pitt, Ltd., Engineers, BATH. Dear Sirs, We have now tested the pump which you lent to us. As we explained to your representative, we… | ||
| scan0034 | Letter from Stothert & Pitt Ltd. regarding the performance of a rotary displacement pump and offering another for testing. | ||
| View original record | X 3449. STOTHERT & PITT. LTD ENGINEERS. HEAD OFFICE & WORKS: BATH. LONDON OFFICE 38, VICTORIA ST., S.W. Telegrams: STOTHERT SOWEST LONDON. PHONE N° 1849 VICTORIA, LONDON. TITAN FOR BUILDING HARBOURS… | ||
| scan0035 | Investigation into oil pump troubles and the solution of fitting a reservoir on the suction side to cure noise and inefficiency. | ||
| View original record | X3449 To Hs/Rm & GWH. ) C. Wor & Hy. ) from RHC. C. AEM. ) RHC2/BE14.1.31. RE: OIL PUMPS We have been investigating the cause of oil pump troubles, and after careful investigation and numerous tests,… | ||
| scan0036 | Modifications to oil pumps for Phantom and 20/25HP models to reduce noise. | ||
| View original record | (2) Phantom I and II. Oil Pumps have always been a source of trouble. In the course of assembly, the remedy has been to file teeth until some improvement in the noise has been effected, but this… | ||
| scan0037 | Introduction and standardisation of oil pumps following a recent investigation. | ||
| View original record | To JWC. from Wor. [strikethrough]Whitney. Hs[strikethrough] ------------------- X3449. WorS/T.28.1.31. ------------------- Re Oil Pumps. Many thanks for your note RHC5/BEC27.1.31. I am really… | ||
| scan0038 | Cure for noisy oil pumps by fitting a small chamber to the suction side. | ||
| View original record | 3449 To Wor. From Hs. c. to BY. c. to E. c. to MX. Hs.1/MJ.28.1.31. NOISY OIL PUMPS. We believe you are aware that RHC. has recently found a cure for noisy oil pumps. This cure is simple, and consists… | ||
| scan0039 | Asking if a cure for noisy oil pumps on Phantom II models can be applied to Phantom I models. | ||
| View original record | To Hs. From Hs/GWH. C to RHC. 83449 Hs/GWH.4/KT.10.2.31. RE NOISY OIL PUMPS. In our quarterly report we have cases of noisy oil pumps on P.I. The recent cure you have given us deals only with P.II. We… | ||
| scan0040 | Material change for noisy oil pump gear wheels from nickel to mild steel. | ||
| View original record | X 3449. To E. From Hs/GWH. Hs/GWH.7/KT.11.2.31. RE NOISY OIL PUMPS. X. 7160. X. 3449. In connection with RHC's cure for the above I believed you mentioned that the pump gear wheels could be made in… | ||
| scan0041 | Inquiry regarding the maximum pressure capabilities of a gear pump for gearbox oil. | ||
| View original record | X3449 Hs. from Da. Da3/M2.7.31. OIL PUMPS. X. 3449 Can you supply us with any information as to the pressure that a gear pump will supply. Will such a pump for instance maintain 100 lbs. per sq. in?… | ||
| scan0042 | Return of a loaned rotary pump to Messrs. Stothert & Pitt Ltd. | ||
| View original record | X3449 D/BP. from Hs/Rm. c. Roy. c. Despatch Stores. Hs/Rm.1/AM19.11.31. We are sending into the Stores for despatch to Messrs. Stothert & Pitt Ltd. one rotary pump. This was loaned to us for test… | ||
| scan0043 | Letter to Messrs. Stothert & Pitt Ltd. detailing test results and criticism of Pump No. 4163. | ||
| View original record | r 3449. Expl. Dept. Hs/Rm.2/MJ. November 19th.1931. Messrs. Stothert & Pitt Ltd., Engineers, Bath. Dear Sirs, With reference to Pump No.4163, which we have had for some considerable time. We have… | ||
| scan0044 | Test report for a Stothert & Pitt Bump No. 4163, detailing performance at various speeds. | ||
| View original record | FEVERHERD - STOTHERT & PITT BUMP NO.4163. SUCTION LIFT 12 FT. PRESSURE HEAD 12 FT. 75/25 PETROL. Initial Pumping Speed - Dry - 2,200 R.P.M. " " " - Primed - 2,000 R.P.M. Minimum " " 250 R.P.M. PUMP… | ||
| scan0045 | Performance graph for the Feuerheerd - Stothert and Pitt Pump No 4163, plotting delivery against pump speed. | ||
| View original record | HS 472 FEUERHEERD - STOTHERT AND PITT PUMP No 4163 SUCTION LIFT 12 FT: PRESSURE HEAD 12 FT: 75/25 PETROL. DELIVERY - PTS/HR. PUMP SPEED R.P.H. 3000 2500 2000 1500 1000 500 500 1000 1500 2000 | ||
| scan0046 | Letter from Stothert & Pitt Ltd. concerning tests on pump No. 4163. | ||
| View original record | 83449. PUMP DEPT. STOTHERT & PITT. LTD ENGINEERS. HEAD OFFICE & WORKS: BATH. LONDON OFFICE 38, VICTORIA ST, S.W. Telegrams: STOTHERT SOWEST LONDON. PHONE No 1849 VICTORIA, LONDON. GS/MC. REFERENCES:… | ||
| scan0047 | Standardisation of a reservoir for oil pumps to resolve noisy operation. | ||
| View original record | RR 755 (10H) (S459, 24-10-30) 6/3185. Y3449 COMPLETED 24.11.31. STANDARDISATION of CHASSIS PARTS. Date 29.1.31. Description of Parts. Reservoir for Oil Pumps. Origin. To cure noisy oil pumps.… | ||
| scan0048 | Form for the standardisation of chassis parts. | ||
| View original record | STANDARDISATION OF CHASSIS PARTS The number of the first chassis on which the new part will be fitted.... As soon as available Date when chassis will be handed to test...................... --- Cost… | ||
| scan0049 | Proposal to change the material for pump gear wheels from nickel to mild steel to resolve noise issues. | ||
| View original record | X7160. To E. From Hs/GWH. Hs/GWH.7/KT.11.2.31. X. 7160. X. 3449. RE NOISY OIL PUMPS. In connection with RHC's cure for the above I believed you mentioned that the pump gear wheels could be made in… | ||
| scan0050 | Standardisation of a reservoir for oil pumps to cure noise. | ||
| View original record | RR 755 (10H) (3-7-30) BM. 6/2571. X7160 COMPLETED 24.11.31. STANDARDISATION of CHASSIS PARTS. Date 29.1.31. X No. 7160. 3449. Drawing No. LX5683. Part List Description of Parts. S.G.R/2k Reservoir for… | ||
| scan0051 | Implementation of a new part on a chassis. | ||
| View original record | CHASSIS PARTS ALTERATION INSTRUCTION RECEIVED 30 NOV 1931 The number of the first chassis on which the new part will be fitted..... As soon as available. Date when chassis will be handed to… | ||
| scan0052 | Design progress of an oil pump and distributor drive, including the ignition gear and lubrication system. | ||
| View original record | R. FROM E. X5160 E1/M7.3.31. C. to SG. WCR. C. to HS. BY. HY. OIL PUMP AND DISTRIBUTOR DRIVE. Please find herewith print of LeC. 2883. dealing with the above. The design is not quite finished off as… | ||
| scan0053 | Development, testing, and cost reduction for the Japan 3 oil pump and distributor drive relief valve. | ||
| View original record | E. ) FROM R. BY. ) (At Le Canadel.) SECRET. X5160 R2/M11.3.31. C. to SG. WOR. HS. JAPAN 3. OIL PUMP AND DISTRIBUTOR DRIVE RELIEF VALVE. We had hoped to avoid the main oil pipe but I assume this was… | ||
| scan0054 | J.3 cross drive for the oil pump and distributor. | ||
| View original record | BY. FROM E. X5160 E2/145.9.31. C. to SG. WCR. HS. J. 3. CROSS DRIVE FOR OIL PUMP AND DISTRIBUTOR. We send you herewith LEC.2942. shewing the above. The drive has been arranged to avoid end pressure on… | ||
| scan0055 | The J.3. oil pump, distributor drive, and oil relief unit. | ||
| View original record | X5160. BY. FROM E. C. to SG. WOR. HS. E2/M12.9.31. J. 3. OIL PUMP, AND DISTRIBUTOR DRIVE, AND OIL RELIEF UNIT. On the 5th. inst. we sent you a print of LeC.2944 shewing the general scheme of… | ||
| scan0056 | Remodelled Malcolm-Feuerheerd pump, now adopted by Lagonda, and a potential meeting with Mr. Feuerheerd. | ||
| View original record | V4677. Tr.17/N.24.12.31. S/W Hs. A short time ago you looked into the question of a Pump known I believe as the Malcolm-Feuerheerd, which you informed us you had tested and found to be of no interest.… | ||
| scan0057 | Stating a decision to cease interest in the Feuerheerd Pump after testing. | ||
| View original record | 84677. W/S. Tr. From Hs. Hs.3/MJ.30.12.31. Re. Feuerheerd Pump. Replying to Tr.17/N.24.12.31. Some time ago we tested the Feuerheerd Pump and we have no further interest in it. Hs. | ||
| scan0058 | Confirming a lack of interest in the Feuerheerd Pump following a previous communication. | ||
| View original record | V4677. S/W Hs. Tr.6/N.31.12.31. Feuerheerd Pump. Many thanks for Hs.3/MJ.30.12.31, from which I note that you are not interested in the above and I am informing the people concerned accordingly. Tr. | ||
| scan0059 | Proposing modifications to manage oil overflow in the Peregrine engine. | ||
| View original record | X 138. To R. from E. c. Sg. For. Hs. By. re Peregrine Oil Overflow. The overflow from the blow-off valve of the oil pump provides more oil than we require in the camshaft chamber, and more oil than we… | ||
| scan0060 | Modification of the Peregrine oil pump gears. | ||
| View original record | X138. To Hs. from E. ----------------- E.9/HP.16.2.33. ----------------- Peregrine Oil Pump. ----------------- Referring to the question of modifying the size of the Peregrine oil pump, we are aware… | ||
| scan0061 | Testing of a new oil pump for Phantom Kelmit bearings. | ||
| View original record | To RHC. from Hs/Rm. XT/160 Hs/Rm.11/KT.16.5.33. KELMIT BEARINGS - PHANTOM. The greater clearance necessary with Kelmit bearings has increased the oil flow through them. We therefore find that our… | ||
| scan0062 | Request to convert an oil pump to a larger capacity unit by fitting a list of modified parts. | ||
| View original record | To RHC. from Hs/Std. Hs/Std.7/KT.16.5.33. Please have the present oil pump on Ph.II. No.25 unit converted to the larger capacity pump by fitting the following :- (a) Distance piece to V.1571. (b)… | ||
| scan0063 | Noisy 20/25 HP Chassis oil pumps and the effectiveness of machining a pressure release slot. | ||
| View original record | By Hs. X3009 Sft2/BH.26.5.33. 20/25 HP. Chassis Oil Pumps. During the last few weeks, we have had 22 Oil Pumps returned by Test Dept. as noisy Pumps. Upon inspection no obvious fault could be found… | ||
| scan0064 | The development and endurance testing of a helical gear oil pump for the Phantom model. | ||
| View original record | To Hs/Rm. from RHC. X3459 RHC.6/BE2.6.33. HELICAL GEAR OIL PUMP During the investigation of Phantom oil pump troubles, a helical gear pump was produced, and this type of gear definitely overcomes gear… | ||
| scan0065 | Gear testing, detailing end clearance after 100 hours, gear noise, and alterations to oil pumps on various models. | ||
| View original record | -2- RHC.6/BE2.6.33. It will be observed there is an increase of .0035" in the end clearance of the driven gear at completion of 100 hrs. In this condition, the gears were perfectly silent, although a… | ||
| scan0066 | Recurring issues with noisy oil pumps on cars and potential solutions. | ||
| View original record | X349 To E. From Hs/Rn. c.c. Wor. By. c.c. Sft. Hs/Rn.7/KT.14.6.33. CHASSIS - NOISY OIL PUMPS. We are always having recurring epidemics of noisy oil pumps on cars. Various things are done to the oil… | ||
| scan0067 | Technical memo on the investigation and endurance testing of a helical gear oil pump. | ||
| View original record | COPY. To Hs/Rn. from RHC. HELICAL GEAR OIL PUMP. During the investigation of Phantom oil pump troubles, a helical gear pump was produced, and this type of gear definitely overcomes gear rattles. The… | ||
| scan0068 | The end clearance and noise levels of a driven gear after a 100-hour endurance test. | ||
| View original record | -2- RHC.6/BE.2.6.33. It will be observed there is an increase of .0035" in the end clearance of the driven gear at the completion of 100 hours. In this condition, the gears were perfectly silent,… | ||
| scan0069 | Request to produce a larger oil pump for the 20/25 model for use with Kelmit bearings. | ||
| View original record | X5160 To RHC. from Hs/Rm. Hs/Rm.4/KT.17.7.33. OIL PUMP FOR USE WITH KELMIT BEARINGS. Will you please produce a larger oil pump for the 20/25 for use with Kelmit bearings. We suggest that you take the… | ||
| scan0070 | Testing of various chassis engine oil pumps, focusing on noise and different designs. | ||
| View original record | To Hs/Rm. from E. c. Wor. By. Sft. RHC. Chassis Engines - Noise Oil Pumps. Referring back to your memo Hs/Rm.7/KT.14.6.33, we think the test made by RHC. on an oil pump fitted with helical gears is of… | ||
| scan0071 | Cover note for a delivery curve of a helical gear pump against the standard article. | ||
| View original record | X-238. To E from Hs/Rm. Hs/Rm.10/KT. 8. 8. 33. Here is a delivery curve of the helical gear pump against the standard article. Hs/Rm. | ||
| scan0072 | Performance comparison graph between standard spur gear and helical gear oil pumps. | ||
| View original record | BENSPORT OIL PUMP COMPARISON BETWEEN STD. SPUR GEAR, AND HELICAL GEAR PUMPS MOBILOIL "D" 75°C 25 LBS/D" DELIVERY PRESSURE STANDARD E.53658 HELICAL EX 11454 ARRANGEMENT DRG NOS Graph: Y-Axis: DELIVERY… | ||
| scan0073 | Testing of a 'Savery' oil pump against a standard gear pump for noise and performance. | ||
| View original record | X5009 To E. From Hs/Rm. c. Wor. By. c. HIC. Srt. Hs/Rm.5/KT:4.9.33. CHASSIS ENGINE NOISY OIL PUMPS. With reference to E.1/HP.28.7.33., we have tested the "Savery" pump and attach information relating… | ||
| scan0074 | Endurance and performance test report for the Savery and Condor petrol pumps. | ||
| View original record | -2- "SAVERY" PETROL. PUMP. This pump was subjected to an endurance test of 20 hours at 1000 P.R.P.M. using oil which had been extracted from the crankcase of a test bed engine. At the end of this… | ||
| scan0075 | Performance graph for a 'Savery' Petrol Pump, plotting delivery rate against pump speed. | ||
| View original record | "SAVERY" PETROL PUMP TYPE MK I G 3337.2 PAT. 352268 12 FT. NEGATIVE TO 12 FT. POSITIVE HEADS. 75/25 PETROL DELIVERY PTS/HR 1600 1400 1200 1000 800 600 400 200 PUMP SPEED R.P.M. 500 1000 1500 2000 2500… | ||
| scan0076 | Blueprint of the operating mechanism for a 'Savery' petrol pump. | ||
| View original record | 31-8-33 3 HOLES .250 DIA 20 T.P.I. 2.437 DIA 1.875 P.C.DIA 1.062 DIA DRIVING PLATE PUMPING SEGMENTS 10° CASINGS SHOWN DOTTED TO ILLUSTRATE POSITIONS OF COMPONENTS .373 .6865 RELIEVED SECTIONS .125… | ||
| scan0077 | Arrangement of casings for a 'Savery' petrol pump. | ||
| View original record | 31-8-33 .825 DIA 14 T.P.I (1/2" GAS THREAD) 1.875 CTS .600 DIA .600 DIA 1.875 P.C. DIA 4 HOLES .450 DIA SECTION BB SECTION THROUGH PORTS, INLET & OUTLET DEPENDS UPON DIRECTION OF ROTATION. ROLLS-ROYCE… | ||
| scan0078 | Comparison of a Bentley oil pump with helical gears against the standard pump with straight-cut spur gears. | ||
| View original record | from RHC. c. Hs/Rm. X238 RHC.7/BE5.9.33. BENTLEY OIL PUMP WITH HELICAL GEARS We have produced a Bentley oil pump having helical gears, and have tested this pump for efficiency on the rig in comparison… | ||
| scan0079 | The road and rig tests of a helical gear pump. | ||
| View original record | -2- Following the tests on the rig, the helical gear pump was handed over to the Test Dept. who have carried out tests on the road and report that the pump is silent in operation, which is very… | ||
| scan0080 | Performance comparison graph between a standard spur gear and a helical gear Bensport oil pump. | ||
| View original record | BENSPORT OIL PUMP COMPARISON BETWEEN STD. SPUR GEAR & HELICAL GEAR PUMPS MOBILOIL "D" 75°C. 25 LB/D" DELIVERY PRESSURE. STANDARD PUMP E 53658 | ARRANGEMENT DRGS. HELICAL PUMP EX 11454 | Y-AXIS:… | ||
| scan0081 | Blueprint diagram for a Bensport oil pump with helical gears. | ||
| View original record | TOP LEFT: (STD PUMP .002 - .005 O/S) TOTAL END CLRCE BETWEEN GEAR AND CASING .003 +1 GEARS INCREASED TO 1.000 TOP RIGHT: TOTAL END CLRCE BETWEEN GEAR AND WASHER .002 PART NUMBERS: Ex11430 Ex11449… | ||
| scan0082 | Helical gear oil pumps for the Phantom II and 20/25 models. | ||
| View original record | To BY. from E/JNR. E/JNR.1/HP.1.1.34. c. Hs. RHC. X.7160 GRY re Helical Gear Oil Pumps. We send you herewith: LeC.3743 Oil Pump for Phantom II. LeC.3746 Oil Pump for 20/25. E/JNR. | ||
| scan0083 | The dispatch of helical gear oil pumps for Phantom II and 20/25 models. | ||
| View original record | COPY. X5160 To BY. from E/JNR. E/JNR.1/HP.1.1.34. c. Hs. RHC. Re Helical Gear Oil Pumps. We send you herewith: LeC.3743 Oil Pump for Phantom II. LeC.3746 Oil Pump for 20/25. E/JNR. | ||
| scan0084 | Costing and design considerations for a 'Savery' Oil Pump compared to the standard Phantom II pump. | ||
| View original record | X-3449 Me from Sft. C. Wor. Hy. Hs. Sft4/BH.6.1.34. Re 'Savery' Oil Pump. We have now been through the question of producing this Pump, and have assumed that the detail design will be more in keeping… | ||
| scan0085 | Design change for 25-HP and Bentley Oil Pump casings from bronze to aluminium. | ||
| View original record | To By. from E/JNR. c. Wor. Hs. Sft. E/JNR.2/HP.24.3.34. re 25-HP and Bentley Oil Pumps. With reference to the Works complaint of porous pump casings which are made in bronze, we have made a design… | ||
| scan0086 | Report comparing the efficiency and design of Luvax-Bijur and R.R. manufactured oil pumps for Bentley chassis. | ||
| View original record | x235 sft.4/DH.28.3.34. CHASSIS LUB: OIL PUMPS. BENTLEY - Hs/GWH.1/KV.10.1.34. We have been looking over the report made by Hs/Mr.Hancock on the relative efficiency of the Luvax-Bijur oil pump compared… | ||
| scan0087 | Request to produce a lighter oil pump with helical gears for the 10,000 miles car. | ||
| View original record | RHC. X 238 Hs/Rn.9/KW.5.6.34. 4-B-IV. Will you please produce a lighter oil pump with helical gears, to LeC.3827. As soon as it is available we will fit it to the 10,000 miles car. Hs/Rn. | ||
| scan0088 | Experimental vertical baffle design to resolve oil pressure loss in the Spectre oil sump. | ||
| View original record | X/318 To Hs/Rm. from E/JNR. E/JNR.5/HP.16.11.34. re Spectre Oil Sump. We have encountered some difficulties in connection with the tray that we are proposing to fit in the sump. You will remember we… | ||
| scan0089 | Oil pressure issues and pump performance on the Spectre engine. | ||
| View original record | X64/4 338 To E. from Hs/Swdl. c. to Wor. c. to By. Hs/Swdl.4/KW.11.12.34. Spectre Oil Pressure. If after running at high speeds with an inlet temperature to bearings of 80°C. or over, the engine be… | ||
| scan0090 | Analysis of oil pump drive and relief valve passages with a proposal to increase oil flow capacity. | ||
| View original record | -2- Hs/Swdl.4/KW.11.12.34. From the drawing the area between the oil pump drive and the surrounding casing appears rather small (.171 sq.in.) considering that the whole of the release has to pass… | ||
| scan0091 | Urgent internal memo discussing the specifications and use of a new large oil pump for a Bentley. | ||
| View original record | x238 To BY. from E/JNR. c. Wor. Hs/Rm. RHO E/JNR.5/HP.4.1.35. URGENT. Bentley Large Oil Pump. We send you herewith:- Lec.4288 showing the large oil pump which is to be used in conjunction with the 6… | ||
| scan0092 | Specification for the propellor shaft damper slip load on 20/25 and Bentley chassis. | ||
| View original record | To By. c. to Mx. (237) Hs/Gry.11/KW.16.1.35. Propellor Shaft Damper - 20/25 & Bentley. The load at which the flywheels of this damper should slip for either chassis is between 4½ and 5 lbs. at 17¾"… | ||
| scan0093 | Tests of the Bentley Increased Capacity Helical Oil Pump with spiral gears. | ||
| View original record | To E.B. from R.C. c. Hs/Rm. X238 Ll. Smith BENTLEY INCREASED CAPACITY HELICAL OIL PUMP - Lec 4288. GEARS FB. 2133/4. We give below W. Bell's report on tests carried out on the Increased Capacity Oil… | ||
| scan0094 | Performance comparison graph for Bentley oil pumps, plotting delivery rate against pump speed. | ||
| View original record | L.E.C. 4288 BENTLEY OIL PUMPS 18-1-35 INCREASED CAPACITY HELICAL GEARS E.B. 2133/4 TESTED WITH MOBILIOL "D" AT 75°C AGAINST 25 lbs/D" DELIVERY PRESSURE WITH THE RELIEF VALVE BLOCKED UP PUMP SPEED =… | ||
| scan0095 | Test results for increased capacity helical gears in Bentley oil pumps. | ||
| View original record | LEC 4238 BENTLEY OIL PUMPS INCREASED CAPACITY HELICAL GEARS EB 2133/4 TESTED WITH MOBILIOL "I" AT 75°C DELIVERY PRESSURE = 25 Lbs/sq" (RELIEF VALVE BLOCKED UP) DELIVERY PTS/HR TABLE: | PUMP RPM | H1 |… | ||
| scan0096 | The limitation of delivery in Bentley Oil Pumps due to inlet pipe restrictions with increased capacity pumps. | ||
| View original record | To Rm. c. to E. +238 Hs/WB.1/KW.26.1.35. Bentley Oil Pumps. Limitation of delivery - due to Inlet Pipe restriction - with special reference to increased capacity Pumps. In view of the present tendency… | ||
| scan0097 | Graph comparing the delivery performance of a Standard Spur Gear Pump against a Helical Gear Pump for Bentley oil pumps. | ||
| View original record | BENTLEY OIL PUMPS LIMITATION OF DELIVERY - DUE TO INLET PIPE RESTRICTION - WITH SPECIAL REFERENCE TO INCREASED CAPACITY PUMPS DELIVERY PRESSURE 25LB/SQ INCH MOBILOIL 'D' TEMP 75°C HELICAL GEAR PUMP -… | ||
| scan0098 | The fitting and initial testing of various increased capacity oil pumps. | ||
| View original record | FILES. 4238 28.2.35. Increased Capacity Oil Pump, LeC.4288. These pumps have been fitted to the following units :- B.4 fitted 28.1.35. B.5 Fitted 28.2.35. We have also had increased capacity helical… | ||
| scan0099 | Testing and standardisation of an increased capacity oil pump with helical gears. | ||
| View original record | Matthews How many of these pumps have we run. What are the results of W. Bell's tests? Rm To Hs/Rm. from E. E.G./HP. 22.2.35. c.c. By. E/JNR. Increased Capacity of Oil Pump - LeC.4288. Standardisation… | ||
| scan0100 | Modifications for a Large Spectre Oil Pump and referencing a Smaller Water Pump. | ||
| View original record | SECRET. X1265 Swindall To BY. from E/JNR. E/JNR.1/HP.9.3.35. c. Wors. Hs/Rm. RHC. Large Spectre Oil Pump. Please receive herewith:- Lec.4400 shewing the above. The pump has been increased in capacity… | ||
| scan0101 | Standardisation of parts for an increased capacity oil pump. | ||
| View original record | RR.755B (5H) (69654. 19-9-34) BM 3/1832/5 COMPLETED 16.3.35. BENTLEY STANDARDISATION of PARTS. Description of Parts: INCREASED CAPACITY OIL PUMP Lec. 4288. Origin: Necessary for lead bronze bearings.… | ||
| scan0102 | Cost analysis for introducing a new part, detailing material, labour, charges, and extra tooling costs. | ||
| View original record | BENTLEY STANDARDISATION OF PARTS Est. cost of extra jigs, tools and equipment (Sft/Ws.28.1.35)£44.0.0. Could bebrought on to production at 1st chassis in "E" series (Sft/CH.28.1.35) without scrap.… | ||
| scan0103 | Investigation into helical gear oil pumps failing to prime, possibly due to insufficient back lash. | ||
| View original record | To Hs/W.Bell! X 1265 Hs/Rm/9/KW/15.7.35. Helical Gear Oil Pumps. The Test Beds report that the helical gear oil pump is no good at all for priming. Will you please investigate this and let us know… | ||
| scan0104 | The delivery curves and performance tests for new Bentley oil pumps featuring helical gears for increased capacity. | ||
| View original record | FOR FILE. X 1265 15.7.35. Bentley Oil Pumps. LeC.4288 - Helical Gears - Increased Capacity. Attached are the delivery curves of the first four of these pumps to be made, with a standard pump curve… | ||
| scan0105 | Priming fault in newly standardised Helical Gear Oil Pumps for 20/25 & Bentley models. | ||
| View original record | X1265 To By. from Hs/Rm. Hs/Rm.3/ETM31.7.35. Helical Gear Oil Pump, 20/25 & Bentley. We are running into a certain amount of trouble with Helical Gear Oil Pumps which were recently standardised. The… | ||
| scan0106 | Instruction to continue using the old type helical oil pump for the Bentley and 20/25 HP chassis due to priming issues. | ||
| View original record | Sft. c. BY/CS c. BY/Cgh c. Hs/Rm X1265 BY. 36/G. 2. 8. 35. BENTLEY AND 20/25 HP. CHASSIS. HELICAL OIL PUMP. Please note that until we issue further instructions Works must continue with old type oil… | ||
| scan0107 | Priming issues with larger helical gear oil pumps fitted with lead bronze bearings. | ||
| View original record | To: [text crossed out] From: Hs/Rm. X 1265 Hs/Rm.10/MJ.3.8.35. The larger Helical gear oil pumps which we have been fitting inconjunction with lead bronze bearings have demonstrated that they do not… | ||
| scan0108 | Priming tests for Bentley helical gear oil pumps, comparing performance with a 'roof' type filter versus a standard filter. | ||
| View original record | X1265 16.9.35. LeC.4288 Bentley Oil Pumps. Priming Tests - Helical Gear Pumps. Further to previous report 17.7.35. Verification of the success attending the adoption of the "roof" type filter in… | ||
| scan0109 | Priming tests for increased capacity helical gear oil pumps on Bentley engines. | ||
| View original record | X1265 17.8.35. LeC.4288. Bentley Oil Pumps. Priming Tests - Helical Gear Pumps. After draining the sumps of Bentley engines fitted with the above increased capacity helical gear oil pumps, priming… | ||
| scan0110 | Report analysing oil pump and filter design issues, specifically air trapping. | ||
| View original record | -2- the lower half, but it will give a lead to future design. Evidently, when the sump was refilled, air became trapped inside the filter pot and suction pipe - the oil only reaching the level of the… | ||
| scan0111 | Illustrations of two types of filters, 'Bentley' and 'Silver Ghost', used during oil pump priming tests. | ||
| View original record | "BENTLEY" TYPE FILTER - F55885 "SILVER GHOST" OR "ROOF" TYPE FILTER ILLUSTRATING TYPES OF FILTER USED DURING LEC4288 OIL PUMP PRIMING TESTS. ROLLS-ROYCE, LTD PRINT ROOM AUG 22 1935 DERBY. 17-8-35 M.B. | ||
| scan0112 | Restriction tests for the Bentley Gallery Oil Pipe assembly, arrangement EB-305. | ||
| View original record | To E. c. to By. X 1265 Hs/WB.30/KW;17.9.35. Bentley Gallery Oil Pipe. EB-305 Arrgt. Restriction Tests. Commencing with the complete oil feed assembly, the pressure being regulated by varying the rate… | ||
| scan0113 | Test results for Bentley Gallery Pipe restrictions using Motorine 'C' oil at 30°C. | ||
| View original record | BENTLEY GALLERY PIPE RESTRICTION TESTS MOTORINE 'C' OIL AT 30°C TEST N°1 ALL FITTINGS " N°2 MINUS BANJO CONNECTIONS. " N°3 " BEARING CAP PIPES " N°4 " OIL TUBE | | PRESS LB/SQ" | N° 1 | N° 2 | N° 3 |… | ||
| scan0114 | Graph detailing Bentley gallery pipe restriction tests using 'Motorine C' oil at 30°C. | ||
| View original record | BENTLEY GALLERY PIPE RESTRICTION TESTS MOTORINE 'C' OIL AT 30°C Nº1 ALL FITTINGS. Nº2 MINUS BANJO CONNECTIONS. Nº3 " BEARING CAP PIPES. Nº4 " OIL TUBES TOTAL PTS/HR. 2000 1500 1000 500 Nº4 Nº3 Nº2 Nº1… | ||
| scan0115 | Graph showing the results of restriction tests on a Bentley Gallery Pipe using Motorine 'C' Oil at 30°. | ||
| View original record | BENTLEY GALLERY PIPE RESTRICTION TESTS MOTORINE "C" OIL AT 30° TEST Nọ 1---- ALL FITTINGS. " Nọ 2---- MINUS BANJO CONNS " Nọ 3---- " BEARING CAP PIPES " Nọ 4---- " OIL TUBE DELIVERY PTS/HR. Y-Axis… | ||
| scan0116 | Priming tests for a Bentley helical gear oil pump, noting the positive effect of a B.W.P. type filter. | ||
| View original record | To E. X 1265 Hs/WB.3/KW.21.9.35. LeC.4288 Bentley Oil Pumps. Priming Tests - Helical Gear Pump. Further to previous report 16.9.35. Considering the "B.W.P." type of filter in connection with the… | ||
| scan0117 | The failure of Hall's metal bearings and the proposed switch to lead bronze bearings. | ||
| View original record | To Hs/FD. X1265 Hs/Rm.2/KW.11.11.35. In view of the failure of Hall's metal bearings both in France and on the Test Bed, it is probable we shall have to fit lead bronze bearings to big bore units when… | ||
| scan0118 | Low oil pressure issue on the Phantom III and comparing oil pump types. | ||
| View original record | To RHC. X1265 Hs/Swdl.29/KW.3.5.36. Phantom III. One of the troubles experiencedd on Ph.III is the very low oil pressure when the oil is hot and the engine slow running at 200-300 r.p.m. Comparative… | ||
| scan0119 | Request to detail and produce a modified oil pump for the Phantom III to address low oil pressure issues. | ||
| View original record | X1265 To RHC. Hs/Swdl.17/KW.5.6.36. Phantom III. Will you please detail and produce an oil pump with gears 2.00" in depth as against 1.375" which is the present standard, for trial with regard to the… | ||
| scan0120 | Additional parts for a special pump and relief valves being fitted to a B-15 Bentley unit. | ||
| View original record | To RHC. X1265 Hs/Swdl.5/KW.10.6.36. Bentley. In conjunction with the special pump and relief valves which you are fitting to B-15 unit, will you also make the following additional parts for trial in… | ||
| scan0121 | Two failures of the Phantom III oil pump drive during cold start testing. | ||
| View original record | Files 1265 c He/Rm from Mx HXB/T10.8.36 PHANTOM III OIL PUMP DRIVE During last week we had two failures of the above on chassis on test. The failures occurred when starting up the engine from cold.… | ||
| scan0122 | Proposal for the Phantom III oil pump driving shaft assembly, reducing costs and standardizing connections. | ||
| View original record | S.H. [redacted] E.P. [redacted] Hgr [redacted] Mr. [redacted] Hs/Rm. Leder 1265 Swoll BY.11/G.17.8.36. PHANTOM III - OIL PUMP DRIVING SHAFT ASSEMBLY. ------------------------------------------ In… | ||
| scan0123 | Multiple failures of the oil pump drive shaft assembly on the Phantom III, recommending immediate replacement of existing shafts. | ||
| View original record | By: [REDACTED] from Mx. Swell - X1265 Mx33/T14.9.36 OIL PUMP DRIVE SHAFT ASSEMBLY PHANTOM III Further to my report Mx8/T10.8.36 of the two failures of this part on chassis on test - we have since had… | ||
| scan0124 | The unreliability of the Phantom III oil pump driving shaft, proposing a replacement with an improved design across all produced chassis. | ||
| View original record | X1265 Hs/Ior. BY.11/G.16.9.36. Sivde. we must see what exactly is being done ? Check we agree O.K. Rm. PHANTOM III - OIL PUMP DRIVING SHAFT ASSEMBLY. In view of the fact that the above piece has not… | ||
| scan0125 | The supply schedule and potential production delays for Phantom III oil pump driving tubes. | ||
| View original record | X1265 Mx. -- - from Sft. G. --BY. G. --R. c. Hs/Rm. sft.1/MW.19.9.36. OIL PUMP DRIVE SHAFT ASSEMBLY PHANTOM III With reference to the following memos.- Mx.33/T.14.9.36. BY/CS4/EH.2.9.36. Please note… | ||
| scan0126 | Failure of drive shaft couplings and a proposed design change to use serrations. | ||
| View original record | FILES. X1265 21st Spetember, 1936. Up to the present, the drive shaft had a knurled finish and by an interference fit the coupling which had a plain bore was pressed on. Due possibly to inaccuracies… | ||
| scan0127 | Modifications to the Phantom III Oil Pump Driving Shaft Assembly, specifically concerning knurled press fit assemblies. | ||
| View original record | Swell X1265 Sft. c. Hy. Hs. By. Mx. E.1/HP.23.9.36. Phantom III Oil Pump Driving Shaft Assembly. The modification to the oil pump driving shaft raises the question of whether we should use these… | ||
| scan0128 | Use of knurled press fit assemblies for the Phantom III Oil Pump Driving Shaft. | ||
| View original record | 1205 Sft/WNW.1/DR.30.9.36. PHANTOM III. Oil Pump Driving Shaft Assembly. In reply to E.1/HP. 23.9.36. regarding the use of knurled press fit assemblies, we are giving our views as requested. Firstly,… | ||
| scan0129 | The requirement to fit larger oil pumps to 4 1/4-litre Bentley cars in France. | ||
| View original record | RHC. from Rm. c. to By. 126ɔ' Rm15/R.18.12.36. LARGER OIL PUMPS FOR CARS IN FRANCE. You will remember at the last chassis Conference that the Administration agreed to fit larger oil pumps and RR.56… | ||
| scan0130 | Comparing the advantages and disadvantages of helical and straight gear oil pumps for Bentley chassis. | ||
| View original record | 1265. To HPS. from Rm/Swdl. Rm/Swdl.5/AP.24.12.36. OIL PUMPS (CHASSIS) It has been found necessary to standardise an increased capacity oil pump for Bentley on account of insufficient supply with… | ||
| scan0131 | List of different oil pumps to be tested to resolve general gear noise. | ||
| View original record | -2- (4) General gear noise - with hot oil. The pumps which should be tried are as follows. (1) Helical gear Bentley Pump LeC.4288 (a) with existing 22º angle teeth. (b) " - 10º " " (c) " - 50º " " (2)… | ||
| scan0132 | Instruction to bring on a larger oil pump for the Bentley Chassis. | ||
| View original record | 1265 Hs. Rm. E. RHS. ROY. c.c. BY/CS. P. Iles SWH BY.2/G.29.12.36. BENTLEY CHASSIS - RE: LARGER OIL PUMP. Will you kindly note that we instructed the larger oil pump immediately following the… | ||
| scan0133 | Trial of new oil pump gears with a 30° angle of obliquity. | ||
| View original record | To HPS. from Rm/Swdl. ɣ 1265. Rm/Swdl.8/AP.15.1.37. OIL PUMPS. We have been recommended to try oil pump gears with an angle of obliquity of 30°. This we should like to be carried out on 2 sets of… | ||
| scan0134 | Requesting the production of several oil pumps with 10° angle Helical gears for testing on experimental engines. | ||
| View original record | To HPS. from Rm/Swdl. γ 1265. Rm/Swdl.10/AP.13.1.37. OIL PUMPS. Will you please make up several pumps to LeC.4288 but with the 10° angle Helical gears which we can try on experimental engines. We are… | ||
| scan0135 | Oil pressure failure in Bentley oil pumps, testing various solutions, and providing recommendations. | ||
| View original record | Hs. from Rm. By. RHC. Mx. 1265 Rm15/R.27.1.37. BENTLEY OIL PUMPS. As you know Hancock ran into trouble with oil pressure failure after braking on the 15,000 mile test on C.B.IV. We have reproduced… | ||
| scan0136 | Undersized oil pumps on the Bentley and Phantom II models, suggesting a comparison and potential increase in size. | ||
| View original record | 1265 Da. c. Rm JNR. E.2/HP.8.2.37. Oil Pumps. Rm. tells me that he thinks we are still down on oil pump sizes both on the Bentley and the Phantom II, and this also applies to relief valve sizes. The… | ||
| scan0137 | Troubles with large helical oil pumps and proposing design reconsiderations. | ||
| View original record | Hs. from Rm. By. RHC. Is. 126/S LARGE OIL PUMPS. We are now able to release the large helical oil pumps. As will be seen from the attached report, the trouble was finally traced down to the annular… | ||
| scan0138 | Investigation into the failure of a Bentley oil pump and proposed dimensional changes. | ||
| View original record | By. from Rm/Swdl. RHC. c. to Hs. c. to E. BENTLEY OIL PUMP. Investigations have been carried out as to why the helical gear oil pump LeC.4288 fails so badly with regard to its priming ability after… | ||
| scan0139 | Note to release production modifications for oil pumps, held up pending investigations into priming difficulties. | ||
| View original record | -2- Rm/Swdl.2/AP.9.2.37. A report of the comparative tests carried out on the road with regard to priming will be issued by Rm/GR. who found the cause of the priming difficulty. This note is to… | ||
| scan0140 | Instructions for making and modifying Bentley oil pumps. | ||
| View original record | To HPS. from Rm/Swdl. 126- Rm/Swdl.1/AP.11.2.37. BENTLY OIL PUMPS. Will you please make up an oil pump to LeC.4288 (22° angle gears) with the driving gear bush flange (E.60060) machined to .975 -1/2… | ||
| scan0141 | Oil pump tests for Bentley, detailing performance with different gears and casings. | ||
| View original record | E. from Rm/GR. c. to Mx. 12/v/s Rml/R.12.2.37. REPORT ON OIL PUMP TESTS (BENTLEY) Tests carried out on B.23.AE & 5.B.IV. B.23.AE crankcase sump had a baffle fitted over the front end of the centre… | ||
| scan0142 | Test report comparing the performance of different gear and casing combinations for pumps. | ||
| View original record | -2- Rm1/R.12.2.37. Test B. 18 seconds. (3) 5ºHelical gears in Aluminium casing. Test A. 70 M.P.H. 15 secs. @ 1000 R.P.M. Gears rattle from 500/2000 R.P.M. Test B. 13 secs. (4) STRAIGHT. gears in brass… | ||
| scan0143 | Test report comparing the performance of straight and helical gears in aluminium and brass casings. | ||
| View original record | -3- From these figures it was obvious that the trouble lay in the casings and not the gears. To prove this still further, we had a pair of straight gears fitted to an Alum. casing; which was machined… | ||
| scan0144 | Test results for various gear and pump casing configurations, measuring priming times under different conditions. | ||
| View original record | -4- (8a) As above but with air gap (splined gear) between bush flange and counterbore in casing filled with solder. This air gap (.015" x .100" deep) by-passes the splined gear teeth from suction to… | ||
| scan0145 | Noting a preferred pump modification and specifications for a bush and casing. | ||
| View original record | -5- Rm.1/R.12.2.37. The last pump or modification is the best for Production. E.60060 Bush; diameter of flange 0.975-1/2. EB.2131 Alum. casing. counterbore diameter 0.975 + 1. Rm. / GR | ||
| scan0146 | Updating the position on the fitting and despatch of Bentley Oil Pumps. | ||
| View original record | The Lee Swift 1265. Rm. BY/Ogh. BY/CS. Roy/AES. Please see for me GRY RHC/JMW.10/EMG.18.2.37. BENTLEY OIL PUMPS. With reference to memo' Rm.15/R.27.1.37 please note position as under.- 1. We received… | ||
| scan0147 | Confirming the dispatch schedule for Bentley oil pumps and pipes to the Paris Depot. | ||
| View original record | γ 1265. RHC/JMW from Rm/Swdl. Rm/Swdl.7/M.27.2.37. Bentley Oil Pumps. In confirmation of your memo RHC/JMW10/EMG.18.2.37, in which pumps are to be despatched to the Paris Depot, we presume that you… | ||
| scan0148 | The production and despatch of 30 large capacity Bentley oil pumps to Paris. | ||
| View original record | 1265. To RHC/JMW. from Rm/Swdl. Rm/Swdl.15/AP.4.3.37. BENTLEY OIL PUMPS. With reference to your memo RHC/JMW.2/JWA.3.3.37. in that you are going to give a further promise when the conditions are… | ||
| scan0149 | Requesting modification of the driving gear bush flange on an oil pump. | ||
| View original record | 1265 To HPS. Rm/GR.9/JH.4.3.37. 24-G-VI. Will you please modify the driving gear bush flange to production limits, on the oil pump of the above car, while in the shop. Rm/GR. | ||
| scan0150 | Testing procedures and supply of Bentley oil pumps to Paris. | ||
| View original record | 1265 RHC. from Rm/Swdl. c. RHC/HS. c. RHC/Mr. Tuxford. Rm/Swdl.4/R.24.3.37. BENTLEY OIL PUMPS - Lec.4288. In reference to your memo RHC/HS9/FH.23.3.37 with regard to our checking the 30 Bentley pumps… | ||
| scan0151 | Testing procedures for a delivery system and relief valve, specifying pressure, flow, and temperature parameters. | ||
| View original record | -2- Delivery. With the tap in the relief pipe "closed" control the pressure in the delivery pipe by means of the tap in this pipe to 25 lbs per square inch, and with the oil temperature at 75°C check… | ||
| scan0152 | The usefulness of specific Bentley oil pumps. | ||
| View original record | 1265 To Hd. from Rm/Swdl. Rm/Swdl.6/AP.5.4.37 BENTLEY OIL PUMPS. Are the oil pumps referred to on the attached memo Sr/Go.3/AD.25.3.37. of any use to you.? Rm/Swdl. | ||
| scan0153 | Standardisation of parts for an increased capacity oil pump on the 25/30 HP model. | ||
| View original record | RR 755A (5H) 20396 21/7/36 J.W.S. COMPLETED 6.4.37. 25/30 H.P. STANDARDISATION of PARTS Date 5.3.37. X No. 1265. Drawing No. LeC.4288. Part List Description of Parts. INCREASED CAPACITY OIL PUMP.… | ||
| scan0154 | Modification note for the 'R2' Series chassis confirming no extra tooling cost. | ||
| View original record | R2/ADVANCE/MODIFICATIONS X Extra Tool Cost - Nil. Could be brought on to production at the 1st. Chassis in "R2" Series (without scrap.) DATE C8.11.23 | ||
| scan0155 | Querying the usability of specific Bentley oil pumps, with a handwritten and later amended response. | ||
| View original record | Files To Hd from Rm/Swdl. C [crossed out] 1265 Rm/Swdl.6/AP.5.4.37 Rm | Swdl BENTLEY OIL PUMPS. Are the oil pumps referred to on the attached memo Sr/Go.3/AD.25.3.37. of any use to you.? Yes,… | ||
| scan0156 | The fitting of large capacity oil pumps to 4 1/4 Litre Bentley chassis in France. | ||
| View original record | W/Levallois. c to Rm. 1265- Hd/SB18/HR.20.5.37. RE FITTING OF LARGE CAPACITY OIL PUMPS TO 4 1/4 LITRE BENTLEY CHASSIS IN FRANCE. With reference to your Sr/VA13/GM. 14.5.37., the Experimental… | ||
| scan0157 | Requesting tests on a Bentley oil pump regarding oil pressure loss. | ||
| View original record | To Rm/FD. 1265 Rm/Swdl.3/JH.4.6.37. Bentley Oil Pump. Will you please test effect of oil pressure loss after braking with and without the external Tecalemit filter, alsom with clean and dirty filter.… | ||
| scan0158 | Investigation into the cause of Bentley oil pump rattle and the results of three corrective tests. | ||
| View original record | 1265 Rm. from Rm/WB. 8.6.37. BENTLEY OIL PUMP. We have been investigating the cause of the rattle from the oil pump when the engine is revved starting from cold. It is only audible for a few minutes… | ||
| scan0159 | Oil pressure test results at various RPMs and configurations. | ||
| View original record | B.23.AE. 8.6.37. R.P.M. MAIN. AWX. 500 5.0 lbs. - 1000 16.0 " - 1500 22.5 " - 2000 26.5 " 1.5 2500 31 " 1.5 3000 33 " 2.75 RETURN FROM MAIN TO SUCTION. R.P.M. MAIN. AWX. 500 5.0 lbs. - 1000 16.0 " -… | ||
| scan0160 | Query regarding the production introduction date for a standardised large oil pump. | ||
| View original record | Handwritten top: See Les Swales (crossed out) WHEN WAS THIS STANDARDISED Handwritten middle: 1265' Handwritten right: Rm Typed top left: S/W. Rm. Typed main body: In the reports of the 15,000 miles… | ||
| scan0161 | The introduction and standardisation of a large capacity Bentley oil pump with helical gears. | ||
| View original record | W/S - Cx. d 1265 Rm/Swd1.6/JH.29.6.37. BENTLEY OIL PUMPS. In reply to your memo. Cx.9/KW.26.6.37. the large capacity oil pump with helical gears was introduced on K series, the first unit to be fitted… | ||
| scan0162 | Querying a chassis number in relation to a larger capacity Bentley oil pump. | ||
| View original record | 1268 Hiles Swdl. what is the correct Chassis number. Rm. S/W. Rm. Bentley Oil Pumps. Cx11/KW3.7.37. With reference to your Rm/Swdl.6/JH29.6.37, we cannot trace the chassis to which you refer - if you… | ||
| scan0163 | Confirming the chassis and unit numbers for the first fitments of increased capacity Bentley oil pumps. | ||
| View original record | W/S. To Cx. from Rm/Swdl. Rm/Swdl.12/5.7.37 BENTLEY OIL PUMPS. In reply to your memo Cx.11/KW.3.7.37., the first chassis to be fitted with the increased capacity oil pump was B.2.K.T., the unit number… | ||
| scan0164 | The supply schedule for 45 larger Bentley oil pumps. | ||
| View original record | Rm. o. Hd. 1265 RHC/JMW.4/EMG.9.7.37. BENTLEY - LARGER OIL PUMP. With reference to your conversation with RHC. please note we will arrange to supply the 45 Pumps asked for as under.- 6 - week-ending… | ||
| scan0165 | Investigation and work on a Bentley chassis regarding an oil consumption complaint, including the trial of a larger oil pump. | ||
| View original record | To By. from Rm/GWH. Kingsbury August 17th 1937 BENTLEY CHASSIS. Re. Introduction of Larger Oil Pump. With reference to your memo By.3/G.13.8.37. it is evident that the whole facts of the case relating… | ||
| scan0166 | 3.5-litre engine modification and subsequent road test results. | ||
| View original record | -2- We are waiting for another car under the same conditions to confirm these results. ------- B.169.BL. R.H.Winn. We have had the first case of carrying out the modification C. to a 3½ litre i.e.… | ||
| scan0167 | Rejection of a simplified oil level indicator and proposals for alternative schemes. | ||
| View original record | To RHC. 1265. Rm/Swdl.4/JH.17.9.37. Phantom Oil Level Indicator. Regarding the rejection of the standardisation sheet No.165 for the simplified oil level indicator on the grounds of £30. press tool… | ||
| scan0168 | Instruction regarding the oil pump for the Wraith III Chassis, Section 5170. | ||
| View original record | 1265. To. RHC. ref. RML. c. Isn/Gry. c. [REDACTED] c. [REDACTED] c. [REDACTED] c. [REDACTED] BY/CS2/EH.24.9.37. Re Wraith III Chassis - Oil Pump - Section 5170. 6 sets. In accordance with… | ||
| scan0169 | Ordering six sets of parts for the Wraith III chassis oil pump on dash. | ||
| View original record | RHC/CAN. C. Rew/Ms. C. HJS. C. HPS. C. Rm/orys. 1265 BY/HEB5/WB. 12.10.37. WRAITH III CHASSIS - 6 SETS OIL PUMP ON DASH - SEC:7141. In accordance with memo BY6/N. 7.10.37, will you please order up six… | ||
| scan0170 | Depot sheet detailing modifications to address high oil consumption after fitting a larger oil pump on a Bentley. | ||
| View original record | Piles 1265 19.10.37. DEPOT SHEET. (contd). (69). BENTLEY - FITTING LARGER OIL PUMP IN ACCORDANCE WITH Rm.1/R.7.7.37. The fitting of the above has been the cause of too great an oil consumption. To… | ||
| scan0171 | Depot sheet concerning main bearing failures and replacement procedures for the 4¼ Litre Bentley. | ||
| View original record | DEPOT SHEET. Juler 1020 19.10.37. 4¼ LITRE BENTLEY - RE: MAIN BEARINGS. We have arranged in view of the sudden failures of engines which have not shewn roughness or knocking, to institute an oil flow… | ||
| scan0172 | Depot sheet memo regarding the replacement procedure for Bentley pistons. | ||
| View original record | DEPOT SHEET. File 236 (C.S). BENTLEY - PISTONS. We have recently added a note to the part list covering the piston on the above engine, pointing out that we must always refit the piston to the same… | ||
| scan0173 | Complaint of wear on oil pump spindles, proposing an experiment to test a carbon steel gear against a nickel steel gear. | ||
| View original record | 1265 HPS. from Rm/Gry. c. HPS/WB. Rm/Gry.2/AP.28.1.38 CHASSIS OIL PUMPS. The Repair Dept. have complained of frequent cases of wear of oil pump spindles. By. suggests this is due to the use of nickel… | ||
| scan0174 | High-pitched squeal from the large capacity oil pump on Bentley Chassis after starting from cold. | ||
| View original record | BY c to Rm. 1265 Files Hd/SB21/HR.7.2.38. LARGE CAPACITY OIL PUMP. -------------------- Bentley Chassis. We have received a number of comments from Bentley Owners, of a high-pitched squeal for the… | ||
| scan0175 | High-pitched squeal from the large capacity oil pump when starting from cold. | ||
| View original record | c. Hd. Rm. ✓ 1265 BY/Mtn8/N.15.2.38. Large Capacity Oil Pump. Referring to your memo Hd/SB.21/HR.7.2.38, it is known a high pitched squeal is liable after starting up from cold until the oil warms up,… | ||
| scan0176 | Excessive wear in oil pump gears due to lack of lubrication and proposed solutions. | ||
| View original record | ST. c to Rm. c to HHG. 1265 Hd/SB2/HR.27.1.38. Rm says please bin to Wraiths re OIL PUMP GEARS. ------------------- The bearings of all our present oil pump gears wear very badly. This makes a repair… | ||
| scan0177 | Scrapping and potential reclamation of E.53658 type oil pumps. | ||
| View original record | - 2 - Continued:- At the present moment we are having to scrap something like 100 oil pumps a year of the E.53658 type which fits all 20 HP., 20/25 HP. and 3½ litre Bentley cars. Further, the oil… | ||
| scan0178 | Excessive wear on oil pump gears, sending removed examples for inspection. | ||
| View original record | 1265. c to Rm. Files Swell See me Rm Hd/SB10/HR.8.3.38. re OIL PUMP GEARS. Further to our Hd/SB2/HR.27.1.38., in connection with excessive wear of the bearings of our oil pumps, and the suggestion we… | ||
| scan0179 | The design of the oil pump, drive, filter, and sump for the Bentley 50 model. | ||
| View original record | DY/NS c. Rm. G. RHC/CAN. 1265 Da.24/G.29.3.38. File SWDL BENTLEY 50. OIL PUMP, DRIVE, FILTER & SUMP. Please receive herewith E.CD.550 Bottom Half Crankcase, Oil Pump, Suction Filter and etc. Bentley… | ||
| scan0180 | Heat treatment and plating process for a fuel pump bush and spindle. | ||
| View original record | 1265 [Text Struck Through] c. Rm. c.c. Mr. Pendlebury. BY.14/G.5.4.38. FUEL PUMP. Referring to Rm/JBD.1/MH.31.3.38. it might be useful to try a SZNCR. bush hardened from a cyanide bath working with a… | ||
| scan0181 | Modifications to the Phantom III oil pump, relief valves, and oil filter to suit revised steering gear. | ||
| View original record | SWDL. H39. 1265 DA.21/G.5.4.38. PHANTOM 111 - MODIFIED OIL PUMP, RELIEF VALVES AND OIL FILTER TO SUIT REVISED STEERING GEAR. Please receive herewith E.CD.590 Modifications to Oil Relief Valve, Oil… | ||
| scan0182 | Pipe support for a new starter motor and a request to check clearances. | ||
| View original record | - 2 - DA.21/G.5.4.38. pipe support from clutch casing to suit the new starter motor D.CD.401. Will BY/Ald. please check the clearances with engine units, with the steering layout he has in hand for… | ||
| scan0183 | The urgent dispatch of six Bentley II oil pumps to the Paris depot. | ||
| View original record | 1265 To HPS. from Rm/Swdl. c. D/BP. Rm/Swdl.5/MH.15.6.38. We have been informed by the Paris depot that they are in urgent need of 6 large standard Bentley II oil pumps IB.2216, complete with pipes,… | ||
| scan0184 | To halt work on the Bentley 5 oil pump relief valve and oil pipes due to a pending modification to the cross steering tube. | ||
| View original record | 1265 To: BY/CS c. to Rm/Gry. BY/NS.3/MG.13.3.39 BENTLEY 5 EXPERIMENTAL PRODUCTION AND PRODUCTION OIL PUMP RELIEF VALVE AND OIL PIPES Please hold up work on the above. Modification to the Cross… | ||
| scan0185 | Parts changes for the Bentley V. Chassis oil pump, fittings, and relief valves. | ||
| View original record | To HFS. [Struck through] c. BY. [Struck through] c. WHB/Id. [Struck through] c. Rm/Swdl. c. Rey/Lecr for HFS. [Struck through] File [Handwritten] 1265 [Handwritten] BY/CS1/WH.24.3.39. Re Bentley V.… | ||
| scan0186 | Continuation memorandum detailing part replacements for an experiment in Sections 5200 and 5205. | ||
| View original record | BY/CSl/EH.24.3.39 cont'd. (2) Section 5200 cont'd. KB.3007 Sleeve (Tubing Nut) 1 off. replaces E.86663 Nipple 1 off. Remainder of parts to standard LOP. EB.4266. Section 5205. EB.4766 Oil Relief Valve… | ||
| scan0187 | 500-hour endurance test for a Wraith chassis oil pump with a Bakelite casing. | ||
| View original record | To RMC. from HPS/Bl. c. to Rm. c. to Da. c. to RMC/DWB. CHASSIS OIL PUMP. Wraith Pump with Bakelite Casing, after 500 hours Endurance Test. EW.964/5 Gears. Following previous tests of 2, 50 and 100… | ||
| scan0188 | Analysis of wear on gear components and a conclusion on the viability of plastic oil pump casings. | ||
| View original record | -2- HPS/B1.1/CB.31.3.39. to be .0018" over the length of the gear well and this is considered to be due to distortion. The "scruffing" of the walls was not any worse after the final run than after the… | ||
| scan0189 | Wear measurements recorded during endurance tests for a Wraith Bakelite oil pump cover. | ||
| View original record | 24-3-39 WRAITH BAKELITE OIL PUMP WEAR MEASURED DURING ENDURANCE TESTS COVER [Drawing of a cover with two circular bushes, labelled A, B on the left and C, D on the right] | TOTAL TIME RUN IN HOURS |… | ||
| scan0190 | Wear measurements recorded during endurance tests for a Wraith Bakelite Oil Pump. | ||
| View original record | 21-3-39 WRAITH BAKELITE OIL PUMP WEAR MEASURED DURING ENDURANCE TESTS DRIVING GEAR Diagram labels: U, V, W, X, Y, Z DRIVEN GEAR Diagram labels: J, K, L, M, N DRIVING GEAR TABLE TOTAL TIME RUN IN HOURS… | ||
| scan0191 | Wear measurements of a Wraith Bakelite Oil Pump casing, bush, and spindle during endurance tests. | ||
| View original record | WRAITH BAKELITE OIL PUMP WEAR MEASURED DURING ENDURANCE TESTS CASING, BUSH & SPINDLE Diagram Labels: DELIVERY SUCTION BUSH SPINDLE Table 1: TOTAL TIME RUN IN HOURS | BUSH IN CASING | SPINDLE IN CASING… | ||
| scan0192 | Blueprint diagram illustrating cracks found within the casing of a Wraith Bakelite oil pump. | ||
| View original record | WRAITH BAKELITE OIL PUMP CRACKS IN CASING SPINDLE SUCTION PORT. BUSH DELIVERY PORT THE CRACKS SHOWN ONLY APPEARED ON THE INSIDE OF THE CASING VhL [initials] BL 2318 21-3-39 | ||
| scan0193 | Performance graph for a Wraith pump with a bakelite casing, comparing delivery and depression before and after a 500-hour endurance test. | ||
| View original record | WRAITH PUMP WITH BAKELITE CASING DELIVERIES AT 75°C AND WITH A .625" DIA SUCTION PIPE DELIVERY BEFORE TEST DELIVERY AFTER 500 HOUR ENDURANCE TEST DEPRESSION AFTER 500 Hour ENDURANCE TEST DEPRESSION… | ||
| scan0194 | Test report on the 50-hour endurance run of a 'Tufnol' gear for a Wraith oil pump. | ||
| View original record | 1265 To RHC. from HPS/Bl. [crossed out] c. to Rm. c. to Ba. [crossed out] c. to RHC/DWB. [crossed out] HPS/Bl.1/CB.14.4.39. WRAITH OIL PUMP. "Tufnol" Gear. Test I - 50 Hours Endurance. With an EW.965… | ||
| scan0195 | Results of a 100-hour endurance test on a gear, noting wear, overheating, and performance. | ||
| View original record | -2- HPS/B1.1/CB.14.4.39. The dark brown markings on the teeth at approximately the pitch line, appeared to be due to local overheating. The tooth bedding thus indicated extended only half way along… | ||
| scan0196 | Graph plotting the results of 50-hour and 100-hour endurance tests on a Wraith oil pump with a Tufnol driven gear. | ||
| View original record | WRAITH OIL PUMP 'TUFNOL' DRIVEN GEAR EW973 DELIVERIES AFTER 50 HR & 100 HR ENDURANCE TESTS MOTORINE 'C' OIL TEST 1 - 50 HRS AT 2000 P.R.P.M, 75°C, 25 Lbs/o" PRESSURE TEST 2 - 100 " " 2000 " , 100°C,… | ||
| scan0197 | Tests carried out on an oil pump casing and cover machined from a solid block of Bakelite. | ||
| View original record | 1265 To: HY & Rm. From RHC/DWB. RHC/DWB.1/MC.14.4.39. TESTS ON BAKELITE OIL PUMP Please find attached hereto copy of report covering a series of tests carried out on an oil pump casing and cover… | ||
| scan0198 | Tests conducted on a moulded Bakelite oil pump casing. | ||
| View original record | 12th April, 1939. BAKELITE MOULDED OIL PUMP CASING INTRODUCTION The contents of this report deal with tests which were carried out on an oil pump casing and cover made from standard Bakelite moulding… | ||
| scan0199 | Inspection reports on a pump following 2-hour and 50-hour endurance tests. | ||
| View original record | -2- REPORTS :- Inspection reports were issued on the condition of the pump at the end of each endurance run, and these were as follows :- (1) After 2 hours Test :- In relation to its initial… | ||
| scan0200 | Results of a pump endurance test after 100 and 500 hours. | ||
| View original record | -3- The rate of delivery was un-changed, and there were no signs of oil leaks, or any sign of oil percolating through the material. (3) After 100 hours Test :- At the end of the 100 hours test run the… | ||
| scan0201 | Performance graph of a Wraith Oil Pump with a Bakelite casing, showing delivery and suction depression before and after a 652-hour test. | ||
| View original record | WRAITH OIL PUMP - BAKELITE CASING DELIVERIES AT 75°C WITH .625" DIA SUCTION PIPE. DELIVERY - PTS/HR 3500 3000 2500 2000 1500 1000 500 0 DELIVERY BEFORE TEST DELIVERY AFTER 652 HOURS DEPRESSION AFTER… | ||
| scan0202 | Blueprint showing cracks that developed on a Wraith Bakelite oil pump casing after use. | ||
| View original record | WRAITH - BAKELITE OIL PUMP CASING. C A B DELIVERY PORT. CRACKS SHOWING IN CASING AT END OF 652 HOURS. FIG II. 12.4.39 | ||
| scan0203 | Test report detailing the wear, distortion, and performance of various components including a Bakelite case, bushes, and gears, and concluding on the viability of plastic oil pump casings. | ||
| View original record | -4- However reviewing generally the records of dimensional changes throughout the tests, as shown in Figs. III. A/B/C., the wear on the Bakelite case was negligible, the tendency being for the… | ||
| scan0204 | Blueprint and data table showing wear measured during endurance tests on a 'Wraith' Bakelite oil pump cover. | ||
| View original record | COVER - 'WRAITH' BAKELITE OIL PUMP. WEAR MEASURED DURING ENDURANCE TESTS. [DIAGRAM OF PUMP COVER WITH TWO CIRCULAR RECESSES LABELLED A, B AND C, D] TABLE: | TOTAL TIME RUN - HOURS | DRIVING GEAR BUSH.… | ||
| scan0205 | Wear measurements for a Wraith Bakelite oil pump's driving and driven gears during endurance tests. | ||
| View original record | WRAITH BAKELITE OIL PUMP WEAR MEASURED DURING ENDURANCE TESTS. DRIVING GEAR DRIVEN GEAR FIG III B. DRIVING GEAR TOTAL TIME RUN - HOURS | UU | VV | WW | XX | YY | ZZ 0 | 0 | 0 | 0 | 0 | 0 | 0 2 |… | ||
| scan0206 | Diagram and tables showing wear test results on a Bakelite oil pump's casing, spindle, and bush. | ||
| View original record | BAKELITE OIL PUMP - WEAR ON CASING, SPINDLE & BUSH. DIAGRAM LABELS: BUSH SPINDLE E, F, G, H, P, Q, R, S, T TABLE 1: BUSH IN CASING | SPINDLE IN CASING TOTAL TIME RUN-HOURS | EE1 | FF1 | EE2 | FF2 |… | ||
| scan0207 | Cost analysis and inspection report for parts EW.969 and EW.970, detailing factory costs and findings of cracks in a casing. | ||
| View original record | -5- Factory Costs :- EW.969 EW.970 Material .894 sh. .403 sh. Labour 2.343 sh. 1.100 sh. 200% Charges 4.686 sh. 2.200 sh. TOTAL............ 7.923 sh. 3.703 sh. Total Factory Cost of casing and cover =… | ||
| scan0208 | Analysis of casing cracks, comparing moulded versus machined production with a cost-benefit breakdown and recommendation. | ||
| View original record | -6- These cracks are indicated in Figs. 4 and 5. The cracks indicated in Fig.6. are probably due to the fact that the casing was machined from the solid, and to the subsequent porosity of the… | ||
| scan0209 | Blueprint showing a cross-sectional view (Section B.C.) of a mechanical component. | ||
| View original record | Section B.C. FIG IV. 5.4.39 | ||
| scan0210 | Blueprint showing a cross-sectional view of a mechanical component, labeled as Figure V. | ||
| View original record | FIG. V. SECTION AB. WWB 5.9.39 | ||
| scan0211 | Blueprint showing a cross-section view (Fig. VI, Section A.C.) of a mechanical component. | ||
| View original record | SECTION A.C. FIG. VI. AHS 5.4.39. | ||
| scan0212 | Exploded-view photograph of a gear pump, showing the housing, cover, gasket, and helical gears. | ||
| View original record | Fig VII. | ||
| scan0213 | Telegram received by telephone regarding the transport of an oil pump by train. | ||
| View original record | Phoned to miss Taylour 3.0 R.R. 144A (25M-3.25.40). WHK Rm ROLLS-ROYCE LTD. TELEGRAM RECEIVED BY TELEPHONE MAINS DEPT. 25 MAY 1941 1265/Oil pumps (?) (WORTH'S) Time Received 10.24 Date 25.4.41. To… | ||
| scan0214 | Telegram about sending an oil pump by passenger train and arranging transport. | ||
| View original record | ROLLS-ROYCE LTD. TELEGRAM RECEIVED BY TELEPHONE. R.R. 144A (23863.25.6.40) WHK MAILING DEPT. 25 APR 1941 Time Received 10.04 Date 25. 4. 41. To Roycar By MH from Market Harborough 10.11 23wds ad… | ||
| scan0215 | Delivery performance of different Merlin engine oil pumps. | ||
| View original record | To - Rm. MERLIN OIL PUMPS. In reply to Rm.26/ML.25.4.41. I attach curves showing the delivery of Merlin pressure oil pumps when using DTD.109 oil at the normal maximum operating temperature of 90°C.… | ||
| scan0216 | Graph of delivery curves for Merlin engine oil pumps. | ||
| View original record | MERLIN ENGINE OIL PUMPS DELIVERY CURVES WITH DTD 109 OIL AT 90°C. DELIVERY PRESSURE 150 LBS/IN². Y-AXIS: DELIVERY PTS/HR. X-AXIS: ENGINE R.P.M. CURVE LABELS: BY.49. INC. CAP SCAV. PUMP. (ONE ONLY) A… | ||
| scan0217 | Comparison of the Leyland Meteor and Merlin III oil pumps, detailing speed and length of pressure/scavenge gears. | ||
| View original record | 1265 To. Rm. Rm/HH.6/ 29/ 4 / 41 MERLIN OIL PUMPS With reference to memo Lov/RCP 2/GC. 28/4/ 41. the following is a comparison of the Leyland Meteor with the Merlin III. Speed . Merlin III .738 : 1 )… | ||
| scan0218 | Performance analysis of B.60 and B.80 oil pumps, with a comparative graph of delivery rates for different helical gear angles. | ||
| View original record | 1265 To Rm. from Jnr. c. to Rm/Wym. c. to Rm/OES. Jnr.7/SW.13.5.41. B.60 and B.80 Oil Pumps. We do not recollect that the B.60 pump has been bench tested for delivery, but as it is the same capacity… | ||
| scan0219 | Reducing gear end clearance to prevent oil pressure drops, including a diagram showing potential wear points. | ||
| View original record | -cont'd- - 2 - Jnr. /SW.13.5.41. of leaks, an experiment worth doing is to reduce the end clearance of the gears in the casing by removing the joint washer, we can hardly need it when it is submerged… | ||
| scan0220 | Letter declining interest in an oil pump gear from Electronic Engineering Services Ltd. | ||
| View original record | 1265 Rm.1/ET. 17th July, 1941. Electronic Engineering Services Ltd., 24, Stanley Road, Heaton Moor, S T O C K P O R T, Cheshire. Attention of Mr. Robert A. Taylor. Dear Sirs, Replying to your letter… | ||
| scan0221 | Proposal from Electronic Engineering Services, Ltd. for an oil pump gear made from iron powder. | ||
| View original record | Electronic Engineering Services, Ltd. EES DIRECTORS: W. J. BROWN, B.Sc., M.I.E.E. N. K. BROWN. R. A. TAYLOR. Telephone: HEAton Moor 3107 Registered Office: 24 STANLEY ROAD, HEATON MOOR, STOCKPORT,… | ||
| scan0222 | Forwarding particulars and drawings concerning oil pumps and Davis Gears. | ||
| View original record | To Dor/Gby. from Rm. 1265 Rm.22/ET.21.8.41. OIL PUMPS. ----------- Herewith further particulars from Olley on the Davis Gears, i.e.OY 2/D/July 15.41 with letter from Mr. Davis, and Drawings HXA-1472,… | ||