Rolls-Royce Archives

Rolls-Royce Experimental Archives: Box ExFiles\Box 92\5\        Box Selection

IdentifierEntry
scan0001 Technical memorandum discussing various schematics for the Spectre Rear Axle, focusing on gear ratios and bearings.
View original record X1094 302 To BY. from Da. c. Wer. Er. Hs. Hdy. Da.5/HP.1.3.34. Spectre Rear Axle. Herewith are N. Sch's 3990/3991/3995 and 3999, centre casing and gears for above. N. Sch.3990 shews the 3.7 gear…

scan0002 The Spectre Rear Axle, detailing its specifications and similarity to the J.3. (or Vulture) model.
View original record X4644 302 To Dr. from Da. c. Mr. E. Hs. AHG. Hdy. Da.2/HP.18.4.34. Spectre Rear Axle. Herewith we send N. Sch.4028 showing the rear axle tubes and driving shafts. The axle tube is similar to J.3. (or…

scan0003 Alternative rear axle gear ratios for the Spectre model.
View original record [Handwritten] [illegible] 302 To BY. from Da. Da./HP.5.7.34. c. WEP. E.Hs. Mey. NHO. Spectre - Rear Axle Gear Ratio. We wish to put on order lower axle ratios than the 3.7 to 1 specified now. Herewith…

scan0004 Test report on rear axle pinion thrust races and double purpose bearings, comparing different manufacturers, lubricants and cage materials.
View original record + 144 302 Hs/Gry.1/KW. 1.7.34. Rear Axle Pinion Thrust Races. Double Purpose Bearings. As a result of the original failures on Bentley thrust races we standardised a Ransome & Marles bearing after…

scan0005 The performance and failure analysis of various roller and ball bearings under testing.
View original record -2- Hm/Gry.1/EW. 21.7.34. After 50 hours signs of overload failure of the roller track were visible and the journal load was therefore halved. After 100 hours the scruffing of the rollers and tracks…

scan0006 Inaccessible placement of level plugs on the Spectre Rear Axle Centre Casing.
View original record x4/4 302 To BY. from Da. Rhu Da.2/HP.13.11.34. c. E. Hs. RHC. Spectre Rear Axle Centre Casing. The level plugs on the centre casing have been criticised as being rather inaccessible due to being on…

scan0007 Modified boss and level plug for the Spectre rear axle casing.
View original record To BY. Copy to Wer. I. Hs. Hoy. WHC. 302 Da.2/MN.20/11/34. Spectre Rear Axle Casing. Herewith is N.Sch. 4270 showing the modified boss and level plug for use on the LH side of axle centre casing. Due…

scan0008 Request to adapt an apparatus to measure the relative movement of each rear road wheel, concerning the Spectre Rear Axle Dither.
View original record To RHC. x4694 302 Hs/Les.12/KW.22.11.34. Spectre Rear Axle Dither. In Hs/Les.8/KW.19.4.34, we asked you to make a device for measuring the rear axle twist. We now require the same apparatus for…

scan0009 The application of 'Perfect' oil seals to the rear axle casing for the Spectre project.
View original record X4644 302 To BY. Copy to Wor. E. Hs. Hey. RMG Da.1/WN.23/11/34. Ru SPECTRE - Rear Axle Casing. Herewith is N.Sch.4273 showing the application of "Perfect" oil seals to the axle driving shaft in the…

scan0010 Lightened section for the Spectre's rear brake drums.
View original record Run x 302 To EV. from Da. c. Mor. E. Hs. Wdy. DNG Da.1/WP.10.5.35. Spectre - Rear Brake Drums. Herewith is N. Sch.4482, showing a lightened section for the Rear Brake Drums, similar in design to the…

scan0011 Results of a 10,000 miles test on a Spectre III rear axle, including bearing replacement and lubrication improvements.
View original record To RHC. c. to Da. +302 Hs/Gry.23/KW.28.5.35. Rear Axle - Spectre III. 10,000 Miles Test. In view of the wear that has taken place on the pinion bearing of Spectre I, amounting to a total end float of…

scan0012 Modifications to the 'Spectre' rear axle differential to improve lubrication.
View original record To: BY. Copy to: Mr. Hs. RMG. MEMS [Handwritten]: 4302 [Handwritten]: GRY Da.1/MN.29.5.35. -------------------- SPECTRE REAR AXLE DIFFERENTIAL. As the differential of Spectre I shews signs of being…

scan0013 Higher gear ratio and roller race design for the Spectre rear axle.
View original record x302 Gry. To EY. from Da. SECRET. Da.1/HP.6.6.35. C. Wep. E. Hs. Hdy. WMG. Spectre - Rear Axle Gears. It is required to get a rather higher ratio than 4.25 to 1 for Spectre. Herewith is N.Sch. 4519…

scan0014 The inspection and repair of the Spectre I rear axle due to excessive backlash.
View original record x302 To Hs/Rm. from RHC. De. ----------------- RHC.21/ETM6.6.35. SPECTRE I REAR AXLE. Following upon last reports regarding excessive slack in Spectre I transmission, the rear axle was removed for…

scan0015 Bevel pinion bearing for the Spectre Rear Axle, recommending a switch from a Hoffmann to an R. & M. bearing.
View original record To By. x302✓ Hs/Gry.10/KW.12.6.35. Spectre Rear Axle. We send you herewith a drawing of the bevel pinion bearing fitted to Spectre 3-S-1 for France. The Hoffmann combined roller and ball bearing has…

scan0016 Instructing a drawing change for the Rear Axle Pinion Bearing for the Spectre model, removing lubrication slots.
View original record To By: x302 Hs/Gry.2/KW. 26.6.35. Rear Axle Pinion Bearing - Spectre. We see from detail drawing G.83388 that lubrication slots have been provided. Ransome & Marles have 'phoned us that they prefer…

scan0017 Permanent design for a rear axle damper with autolock control for the Spectre model.
View original record Rm X302 To DY. from HDY. SECRET. HDY.1/HP.26.6.35. c. Wor. E. Hs. Ds. HNS. Hs/Les. Rear Axle Damper - Spectre. N.Sch.4525 herewith gives the permanent design for this damper with autolock control…

scan0018 Modifications to a gland, rocking shaft bush, and damper filling plug.
View original record - 2 - HDY.1/HP.26.6.35. We have simplified the drilling for the gland release hole but otherwise the gland is unaltered. The rocking shaft bush remote from the lever is reduced in thickness. At the…

scan0019 Modification to the Rear Axle Damper, specifically regarding the guide for the sleeve actuated by the autolock lever.
View original record x302 To HX. from HDY. C. Wos. H. H. HMG. Hs/Les. HDY.3/HP.2.7.35. Rear Axle Damper. N. Sch.4550 herewith shows a modification to N. Sch.4625 suggested by Hs/Les. The guide for the sleeve which is…

scan0020 Modification to the Rear Axle Damper, referencing drawing N. Sch. 4559.
View original record X302 To BT. from HDY. HDY.3/HP.2.7.35. C. Wor. E. Hs. Da. RHC. Hs/Les. Rear Axle Damper. N. Sch.4559 herewith shows a modification to N. Sch.4525 suggested by Hs/Les. The guide for the sleeve which is…

scan0021 Oil leak from the pinion bearing on a Spectre Rear Axle, recommending a modification.
View original record +302 To E. c. to Da. c. to By. Ha/Gry.19/KW.7.8.35. Spectre Rear Axle. We have reports from France that there is a leak of oil from the pinion bearing on the rear axle of 3-S-I. The only provision for…

scan0022 The replacement of a pinion oil seal for a Spectre rear axle.
View original record GRY *302 To Er. from Da. Da.5/HP.20.8.35. c. Er. Hs. Ndy. RHC. SECRET. Spectre Rear Axle - Pinion Oil Seal Herewith is N.Sch.4594 showing a screw oil retainer similar to that standard on Phantom 2,…

scan0023 Oil seal issue for the Spectre Rear Axle, proposing a solution based on experience with the Bentley.
View original record To RHC. +302 Hs/Gry.9/KW.20.8.35. Spectre Rear Axle; We have discovered from an examination of the drawings of the axle that an oil seal has been used to prevent oil leaks down the half shafts of as…

scan0024 Requesting an official order for half a dozen oil seals from the Super Oil Seal Manufacturing Co.
View original record To Roy. c. to RHC. X302 Hs/Gry. &/KW. 20. 8. 35. We have telephoned to the Super Oil Seal Manufacturing Co., Birmingham, for half a dozen Seals to their number 20616. Will you please send them an…

scan0025 Required modification to the Spectre Rear Axle casting to add an oil return way.
View original record To RHC. C. to By. +302 Hs/Gry.22/KW.5.9.35. Spectre Rear Axle. On examining the axle boxes being built on production, we find the pinion bearing housing is arranged to supply a return oil way but that…

scan0026 Requesting an old axle from chassis 2-S-I be fitted to the Vulture car for dynamometer work.
View original record x302 To RHC. Hs/Gry.1/KW.27.9.35. Spectre Rear Axle. We have asked Mx. to return to you the old axle which was originally on Chassis 2-S-I. Will you please fit this to the Vulture car so that we can…

scan0027 The shearing of keys on the Spectre rear axle pinion during sharp acceleration tests.
View original record X302 To Sg. & Wor. c. to E. c. to De. c. to Dy. Hs/Rm.10/KW.1.10.35. Spectre Rear Axle. After making some tests which necessitated sharp acceleration on second gear, the keys on the taper of the axle…

scan0028 The rear axle fouling steel straps and the chassis bijur pipe on the Phantom III 31-EX model during a fast getaway.
View original record X302 To E. c. to Da. c. to By. c. to Hs. c. to RHC. Hs/GWH.10/KW.2.10.35. Phantom III - 31-EX We have found that when a fast getaway from rest, using the second gear, is attempted, the wind up of the…

scan0029 Temporary scheme for strengthening the Spectre rear axle pinion.
View original record GRY DY. from Da. c.c. Hs. Hdy. RHC. x302 Plan Da.1/HP.2.10.35. Spectre - Rear Axle Pinion. Herewith is N.Sch.4651 shewing the strengthening of the drive to the rear axle pinion by increasing the taper…

scan0030 On a Phantom III rear axle coupling failure, proposed modifications, and comparison with Bentley designs.
View original record Rm GRY X302 Sg. and Wor. from E. E.2/HP.2.10.35. c. Hs. Ey. Da. Phantom 3 Rear Axle. With reference to the failure of the coupling drive to the pinion, as reported in Hs/Rm.10/KW.1.10.35, it should be…

scan0031 Follow-up memo regarding proposed action on the Phantom III Rear Axle.
View original record X.302 H3 | Rm To E. from Sg. Copy to For.Da. HY.Hs/Rm. re P.III Rear Axle. Sg4/E2.10.35 Referring to Hs/Em.10/KW.1.10.35 I should be glad to hear from you relative to this matter and the proposed…

scan0032 The lubricating pipe arrangement and rebound sling modification for the Phantom III rear axle.
View original record To BY. Bowering. x302 Copy to R. Hs. HDY. RHG. Da.3/MN.3.10.35. PHANTOM III - Rear Axle, etc. N Sch.4647 shows the arrangement of the lubricating pipe along the rear axle, to lubricate the shock…

scan0033 Final scheme for strengthening the Phantom III Hypoid Pinion drive.
View original record Gry x 302 BY. E.Hs.Hdy.RHC. Da.2/HP.5.10.35. Phantom 3 Hypoid Pinion. Herewith is N.Sch.4654 shewing the final scheme for strengthening the drive between the hypoid pinion and the universal joint…

scan0034 Query regarding a deviation from the standard taper on the Phantom III Rear Axle.
View original record Handwritten: Hs, X302, GRY To E. from Sg. Copy to Wor.Hs. Ex.De. (struck out) Phantom III Rear Axle. Referring to E.2/HP.2.10.35, I note it says in the second paragraph '....it is strange that the…

scan0035 Dynamometer test on a Spectre rear axle, comparing performance figures with Bentley and Phantom II models.
View original record To E. From Hs/Gry. c.c. to Wor. c.c. to Da. c.c. to By. c.c. to Hdy. √302 Spectre Rear Axle. We have recently carried out a dynamometer test on a Spectre rear axle fitted to the Vulture car. This axle…

scan0036 Dynamometer testing of engine performance, axle bearings, and gearbox components.
View original record -2- The Spectre figures are calculated from 110 M.E.P. against 120 for the Vulture, and the .37 ratio 1st gear. The dynamometer test we carried out was therefore at 20% overload. Even with a 17%…

scan0037 Dynamometer testing of gears and an inspection of the propeller shaft after a road test.
View original record -3- After the original failures we fitted 25° gears and had no trouble on the road during 10 months' running. New gears were fitted for this dynamometer test and have proved themselves adequate. This…

scan0038 Requesting the assembly of a new Ph.III rear axle with specific test requirements.
View original record To RHC. X302 Hs/Gry.5/KW.8.1.36. Ph.III Rear Axle. Will you please assemble one of the new rear axles so that - (1) The pinion crown wheel backlash at the pitchline is less than .003". (2) The total…

scan0039 Excessive deflection in the Spectre Back Axle pinion mounting.
View original record x 302 GRY Please deal with this Rm, [Signature] ENG. c. H.Ha. HS/Rm. E/HDY.3/HP.28.1.36. Spectre Back Axle. We understand from RHC/RH that excessive deflection is taking place in the pinion mounting…

scan0040 Adjustment of the rear axle oil level for the Phantom III model.
View original record BT. c. Hs. Sft. Hs/GWH.Ds. Rdy. E.6/HP.29.1.36. Phantom III Rear Axle Oil Level. With reference to the oil level in the Phantom III rear axle, this was arranged in accordance with our usual standard…

scan0041 The procedure for achieving the correct oil level in a Phantom III rear axle.
View original record X302 To H. c. to Ey. c. to Da. c. to Gft. c. to Hdy. c. to He/Eu. HS/GWH.7/JM.3.2.36. Phantom III Rear Axle Oil Level. Reference A.S/HP.29.1.36. To obtain 2 pts. of oil in the rear axle, the bevel…

scan0042 Modification required to increase the rear axle oil level for the Phantom III.
View original record GRY RY. c.c. Hs. Da. RHC. Hs/Hm. E/HDY.1/HP.6.2.36. Rear Axle Oil Level - Phantom III. Phantom III We send herewith N.Sch.4753 which shews the level plug raised the amount necessary to increase the…

scan0043 Request for a report on the distortion of a damaged Phantom III back axle centre casing.
View original record G R M x302 R.H.C. C.E. Hs. Der. E/HDY.1/HP.12.2.36. Back Axle. - Phantom III. With reference to the back axle centre casing which has been damaged by the use of a garage jack recently acquired by the…

scan0044 Modifications to strengthen the back axle centre casing for use with a garage jack.
View original record x302 SYP c. E.Hs. De. RHC. Sft. Hc/Am. E/HDY.2/HP.28.2.36. Back Axle Centre Casing Strengthened to provide for the use of a garage jack. N.Sch.4767 herewith shows the above. The aluminium casing is…

scan0045 Note regarding design precautions for the centre casing and a material change for its cover.
View original record (sheet 2) We retain the inside fit as a precaution against distortion of the centre casing due to the use of a garage jack. The cover is now of aluminium instead of steel. E/HDY.

scan0046 Modifications to the back axle plugs for the Phantom III to avoid using a special spanner.
View original record X302 Rum EX: C. Mr.Hs. Ds. RHC. Hs/Rm. W/EV. 28 E/HDY.2/HP.10.2.36. Back Axle Phantom III. We send herewith N.Sch.4755 which shows modifications to the plugs in the back axle casing to avoid the use…

scan0047 Solutions for chunking and slack in the Ph.III rear axle differential.
View original record To E. c. to Da. c. to Hdy. c. to By. x302 Hs/Gry.18/KW.28.2.36. Rear Axle Differential. In order to reduce chunking on Ph.III cars we have to keep the total rear axle slack as low as possible. A new…

scan0048 Blueprint detailing roller bearings for a rear axle differential thrust washer.
View original record Rm. 76. ROLLER THRUST BEARING 18 ROLLERS, 1/8" DIA x 1/8" LONG ROLLER THRUST BEARING 20 ROLLERS, 3/16" DIA. x 3/16" LONG ROLLER BEARINGS FOR REAR AXLE DIFFERENTIAL THRUST WASHERS Ph. III

scan0049 Design and assembly methods for the strengthened rear axle centre casing.
View original record To. B/Hdy. Mr. Hys. Ho. HantC. Hey/SM. X302 ? Ram GRY Sft/WHW.3/DR.6.3.36. STRENGTHENED REAR AXLE CENTRE CASING. H.Sch.4767. With reference to E/Hdy.2/HP.28.2.36. regarding the above, we note that the…

scan0050 Modifications to the brake linkage on the back axle and the rebound strap.
View original record X302 BY. c.-E. Hs. Da. RMC. HS/RH. E/HDY.1/HP.3.3.36. Brake Linkage on Back Axle and Rebound Strap. We send herewith N.Sch.4775 which shows the linkage modified to give increased flexibility to…

scan0051 Increased radius on the Back Axle Bevel Pinion for the Phantom III.
View original record x302 Br. c. E. P. Ex. Hs. RWE. Wo/Insp. E/HDY.1/HP.17/18.5.36. Back Axle Bevel Pinion - Phantom III. On N.Sch.4782 herewith we show an increased radius at the junction of the roller bearing journal…

scan0052 Increased radius on the back axle bevel pinion for the Phantom III.
View original record x302 R A GRYLLS C.E.H.DA. MB. RHC. Hs/Fm. E/HDY.1/HP.18.3.36. Back Axle Bevel Pinion - Phantom III. On N.Sch.4782 herewith we show an increased radius at the junction of the roller bearing journal and…

scan0053 Scrap values for strengthened rear axle box components for various chassis.
View original record c. to Bs. c. to Fs. +302 Rm ROY/MS9/P.21.4.36. STRENGTHENED REAR AXLE BOX. We have had delivered on Phantom and 25/30-HP Chassis the following details, which will be scrap if the above is brought in,…

scan0054 Requesting the testing of a strengthened axle centre casing for the Phantom III chassis.
View original record Hs and By. c. Da. GRY X302 E.6/HP.23.4.36. re Strengthened Axle Centre Casing. As we have already cleared the rear Phantom III axle by the testing accomplished uptodate for the first 50 production…

scan0055 Potential of fitting an over-drive system, similar to those in American cars, to Bentley and Continental Phantom III models.
View original record To E. from Sg. Copy to Hs. Ex. re Over-Drives. You will remember I told you that I have recently tried two American cars with over-drives, the one being the Studebaker and the other the Ford V.8. The…

scan0056 Implementation of an overdrive, comparing an axle-based system with converting the existing gearbox.
View original record x302 Sg. from E. c. Hs. Ox. re Overdrives. Referring to your memo Sg.4/E.12.5.36, this confirms your views with regard to our suggestion, to include an over-drive for a Continental model. I have read…

scan0057 Instruction to hold work on the Phantom III rear axle differential with enlarged thrust surfaces.
View original record BT: c. Hs/Fm. RHC. Hdy. GRY X302 Da.1/HP.18.5.36. Phantom III - Rear Axle Differential. Would you please hold up any work on N.Sch.4785, the differential with enlarged thrust surfaces, until we send…

scan0058 Instructions for modifications to the back axle differential casing for the Phantom III and 25/30 models.
View original record √302 Raw GRY C.c. Mr. Hs. Da. RMC. Hs/Rm. E/HDY.1/HP.20.5.38. Back Axle Differential Casing - Phantom III and 25/30. We send herewith N.Sch.4811 which shows increased radii at the corners on the…

scan0059 Requesting accelerated failure testing on Bell's rig for various Phantom III Differential parts.
View original record To RHC. X 302 Hs/Gry.1/KW.27.5.36. Phantom III Differential. In view of the failures of this part we should like to obtain the time for accelerated failures on Bell's rig for - (1) The present…

scan0060 Further modifications to strengthen the differential casing for the Phantom III.
View original record GRY. Rm 302 x3268 BY. C: F.H.De. Hs. RDC. Hs/Rm. E/HDY.1/HP.30.5.36. Further modifications to strengthen differential casing - Phantom III. We send herewith N.Sch.4814 which shows the above.…

scan0061 Proposing a modification to the Phantom III back axle to increase pinion clearance and prevent seizure.
View original record x302 Rm C.c. E.S. Da. H.S. R.M.S. Hs/Bm E/HDY.1/HP.4.6.36. Phantom III Back Axle. The oil retaining screw thread of the pinion has seized on a dynamometer test recently carried out, and on examination…

scan0062 Modification to the Phantom III back axle to increase clearances after an oil retaining screw seized during testing.
View original record X302 GRY Rm Dr. C. E. L. DA. MS. RMC. c.c. Hg/Rm. E/HDY.1/HP.4.6.36. Phantom III Back Axle. The oil retaining screw thread of the pinion has seized on a dynamometer test recently carried out, and on…

scan0063 Arranging an interview about Bentley Axle oil seals with a representative from Super Oil Seal Manufacturing Co.
View original record Hs/Grys. X302 BY.2/G.9.6.36. BENTLEY AXLE - RE: OIL SEALS. ------------------------------- I have received a letter this morning from the Super Oil Seal Manufacturing Co. (England) Ltd. in which we…

scan0064 Rear axle No. 30-EX after a dynamometer test, detailing parts fitted, test conditions, and results.
View original record Handwritten top section: x302 GRY. Am leaving it to you to issue any reports necessary. To Hs/Rm. from RHC/RH. RHC/RH/AP.10.6.36. Rm Typed section: REPORT ON 30.EX. AFTER REAR AXLE TEST ON…

scan0065 Inspection report detailing twisted driving shafts, bearing end play, and differential case checks.
View original record -2- RHC/RH.1/AP.10.6.36. Driving shafts in S/ZNCR twisted to receive a permanent set. Offside twisted 9½°, near side twisted 8½°. End play in pinion bearing increased from .0005 to .003. End play in…

scan0066 Blueprint detailing fouling and wear on a 30 Ex Rear Axle after dynamometer testing.
View original record Ex I 34 APPROX: .050 ON DIA: IS WORN OFF THE PINION DRIVING FLANGE MAX: FOULING OCCURS ON THIS AREA OF THE BORE. TOP OF AXLE CENTRE CASE INITIAL CLEARANCE ON DIA BETWEEN DRIVING FLANGE & BORE OF COVER…

scan0067 Fatigue test results for differential housing failures.
View original record To E. c. to Sg. c. to Wor. c. to By. c. to Da. X302 Hs/Rm.21/KW.13.6.36. Differential Housing Failures - Ph.III. As we proceed with fatigue tests on this part it becomes quite clear that the standard…

scan0068 Fatigue test report on Phantom III differential housings.
View original record To E. c. to Sg. c. to Wor. c. to By. c. to Da. Hs/WB.30/KW.11.6.36. Phantom III Differential Housings. G.54469. These housings were subjected to Wohler fatigue test at 500 r.p.m., the load being…

scan0069 Proposing a rig test to determine if lightening and lubricating holes in the Phantom III differential casing are necessary.
View original record X302 GrY. Will you arrange this Rm c.Hs/Rm. Da.2/MP.15.6.36. Differential Housing Failures - Phantom III. Referring to Hs/Rm.21/KW.13.6.36, we should like to know whether the lightening and…

scan0070 Comparison of chassis weights for a strengthened rear axle centre casing.
View original record To E/De. from RHC/RH. c. Hs/Rm. GRY X302 RHC/RH.2/AP.18.6.36. CHASSIS WEIGHTS. REAR AXLE STRENGTHENED CENTRE CASING - NS.4767 Herewith comparative weights:- G.84483 Strengthened casing complete with…

scan0071 Production and testing of a new differential housing design following failures.
View original record Hs/Rm. GRY- c. Sg. Wor. By. Da. E.10/HP.19.6.36. Differential Housing Failures - P.III. Referring to your memo Hs/Rm.21/KW.13.6.36, we are pleased to find that the differential housing stood up better…

scan0072 Cost information for machining splines, a wheel driver, and internal hub splines.
View original record To G/Rb. x302 Hs/Gry.22/KW.31.7.36. Further to Rm's telephone conversation, can you please let us know the cost of - (1) Machining the splines at the end of the half shaft G.82648. (2) Cost of the…

scan0073 Factory costs for various automotive components.
View original record To Hs/Gry. from G/Rb. X 302 G/Rb.1/D/M.1836. Factory Costs. Herewith the Factory Costs requested in your Hs/Gry.22/KW.31.7.36. G.84135/6 Axle Shaft Mill Splines 1-1 Grind " 1-4 G.54989 Rear Wheel…

scan0074 Arrangement drawing for the Spectre rear axle and its cost considerations against other models.
View original record To G/Rb. X302 Hs/Gry.4/KW.21.8.36. Herewith an arrangement drawing of the Spectre rear axle. When you are considering the cost of this against the Wraith Bangosscheme, perhaps you would bear in mind…

scan0075 Modifications to the Phantom III back axle to address wear and knocks.
View original record X302 GRY. Does this satisfy you? Rm BP. C. E.D's. INC. Hs/Rm. E/HDY.1/HP.26.8.36. Phantom III Back Axle. We send herewith N.Sch.4888 showing increased length of the outer splines on the driving piece…

scan0076 Stone damage to the Phantom III back axle after a 10,000-mile test and proposing protective guards.
View original record GRY BY: C. [redacted] Hs/Rm. E/HDY.4/HP.7/9.36. Phantom III Back Axle. We send herewith N.Sch.4890 showing stone guards to be provided on the back axle to protect the lower ends of the shock damper…

scan0077 Two types of improved chrome leather oil seals from George Angus & Co. for the Phantom III and 25/30 models.
View original record x302 Hs/Grys. C. ROY. BY.4/G.15.9.36. OIL SEALS - RE: ANGUS CO'S IMPROVED MATERIAL. ------------------------------------------- I am handing you herewith a number of oil seals of two types, which have…

scan0078 Test report on a Phantom III rear axle after dynamometer and road testing.
View original record To EP from RHC/RH. c. Hs/Rm. V302 RHC/RH.1/AP.17.9.36. GRYLLS PHANTOM III. REAR AXLE 30-EX. No.2.24.A. 8 x 34 Ratio. Examination of Rear Axle after test on Dynamometer. Complete Rear Axle with Brakes…

scan0079 Inspection report on rear axle, brake, and hub components.
View original record -2- Rear axle continued. Thrust washers - Driving Shaft - G.84550/4 BZ/PC to N.S.4814 - bedding on grooved face good, scoring on plain side. Diff.pinions G.84555 - condition good. Magnetic tested for…

scan0080 The condition and re-assembly of rear hubs, brake drums, and road wheels.
View original record RHC/RH1/AP.17.9.36. -3- Rear Hubs continued to be used when Hubs are being re-assembled. Depots should be notified. Brake Drums - condition good. Fidgetting on cone section of Hubs and Road Wheels.…

scan0081 Blueprint showing the distortion of near side carrier plates after a dynamometer test.
View original record DISTORTION OF NEAR SIDE CARRIER PLATES. AFTER DYNAMOMETER TEST. P. III 30 C.X. INSIDE LIP OF DUST COVER FOULING BRAKE DRUM FOR THIS DISTANCE. MAX DISTORTION AT THE ENDS OF CARRIER PLATES. FIGURES…

scan0082 Blueprint of a centre casing after a dynamometer test, noting misalignment measurements.
View original record ACTUAL CENTRE LINE OF BORE TRUE CENTRE LINE OF BORE Ex I 60 PINION HOUSING BORE .0015 LOW COMPARED WITH TRUE CENTRE FACE OF PINION HOUSING .002 OUT OF SQUARE WITH BORE AS SHOWN REAR AXLE CENTRE CASE…

scan0083 Blueprint for an adaptor tool to facilitate the assembly of Phantom III rear hubs.
View original record Ex.I. 61 LAYOUT OF STANDARD REAR HUB ADAPTOR Ex 24189 ADAPTOR FOR HOLDING INNER RACE OF ROLLER BEARING RIGID WITH DISTANCE PIECE WHEN ASSEMBLING HUB ON AXLE TUBE THIS PREVENTS THE POSSIBILITY OF…

scan0084 'Gaco' oil seals produced by Messrs. George Angus & Co. Ltd.
View original record c. Hs/Grys. X302 BY.9/G.30.9.36. RE: OIL SEALS PRODUCED BY MESSRS. GEORGE ANGUS & CO.LTD. I am sending you herewith one each of the seals supplied by the above Company, in which the sealing material…

scan0085 Dynamometer testing on the Phantom III axle and gearbox to prevent gears coming out of mesh.
View original record x 302 To E. & Wor. c. to Sg. c. to By. c. to Mx. c. to Da. c. to Hdy. Hs/Gry.1/KW.7.10.36. Dynamometer Testing - Phantom III Axle and Gearbox. We attach a report showing the recent dynamometer testing…

scan0086 Dynamometer endurance testing of a Phantom III axle and gearbox.
View original record Hs/Gry.2/KW.7.10.36. Dynamometer Testing - Phantom III Axle and gearbox. In connection with our experiments to prevent third and second gears coming out of mesh, we have recently completed the…

scan0087 Test report on component modifications and a 'Concertina' 3rd speed coupling.
View original record -2- Hs/Gry.2/KW.7.10.36. (4) (3) modified to have double the radii in the sharp corners and a little more metal on the broken part :- Same tests but omitting the shock engagements as these were…

scan0088 Results of deflection tests on rear axle half shafts for the Phantom III and Bentley models.
View original record To E. c. to Da. c. to By. c. to Hdy. X 302 Hs/Gry.1/KW.10.10.36. Rear Axle - Rear Wheel Drivers. We have carried out the deflection tests requested by the Design Dept. to determine the amount that the…

scan0089 Axle shaft restoring load, wheel drivers, and a recommendation for a new driver design.
View original record -2- The restoring load is nearly half the length of an axle shaft. Virtually therefore no sensible force is required to cause the necessary movement in the wheel drivers. An old shaft and driver were…

scan0090 Rear axle deflection, cancelling a design, and requesting further experiments.
View original record [Handwritten in pencil] X 302 ? 202 ? [Handwritten in ink] GRY Please Carry out [Signature: Rm] Hs/Rm. c.c. By. Da. E/HDY. E.7/HP.13.10.36. Rear Axle. Rear Wheel Drivers. Thank you for your report…

scan0091 Further deflection measurements for a P.3 rear axle.
View original record To R. From Rm/Gry. C. to Da. c. to Ey. c. to Hiy. Y 302 Rm/Gry.9/MJ.30.10.36. REAR AXLE DRIVERS. As requested, we send further deflection measurements of a P.3 rear axle. As in the previous test the…

scan0092 Blueprint graph showing P3 rear axle deflections under varying loads.
View original record P 3 REAR AXLE DEFLECTIONS. DEFLECTION RELATIVE TO A A. /1000. DISTANCE FROM INNER ROW OF BOLTS OF END PLATE. — INCHES. NO LOAD TO FULL LOAD HALF LOAD APPROX. OUTLINE OF AXLE. NO SCALE. -.003 IN THIS…

scan0093 Requesting to fit stiffer rear axle half shafts and examine the offside rear brake drum.
View original record 302 3004 HPS. from Rm/Smth. Rm/Smth2/R.13.11.36. 37-EX. We are sending this car into the shop this morning. Will you please fit the stiffer rear axle half shafts. Will you also please examine the…

scan0094 On Phantom III modifications, discussing mileage and issues with old type differential boxes.
View original record X302 Hs. from Rm. Rm8/R.23.11.36. P.III MODIFICATIONS. Replying to Hs.2/KW.21.11.36., attached is a list of mileages done on the old type differential boxes. 34-EX, now being run for Demonstration…

scan0095 List of mileages recorded for old type differential boxes on various experimental cars.
View original record LIST OF MILEAGES DONE ON OLD TYPE DIFFERENTIAL BOXES. 31-EX - in France - 9,000 32-EX ................. 35,500 36-EX (Total Unchanged) ... 13,000 33-EX ................. 24,000 34-EX .................…

scan0096 Prioritization and timing of modifications for the Phantom III, particularly regarding differential boxes.
View original record To Rm. from Hs. Hs.2/KW.21.11.36. Re Phantom III Modifications. With reference to the attached memo. C14/C.20.11.36, I should like to know how many miles we have run on the old type differential…

scan0097 Urgent need to modify the back axles of early Phantom III cars to prevent failure.
View original record COPY. S/W - Hs. c. to H. c. to Br. C14/C.20.11.36. Phantom III Modifications. One of our worries at the present time is the changing of the back axles of the early Phantom III's delivered to…

scan0098 Testing of Phantom III stiff rear axle shafts and a request to modify them to be less stiff.
View original record 302 HPS. from Rm/Smth. Rm/Smth6/R.30.11.36. P.III STIFF REAR AXLE. We have tested the shafts to EX.24569/70, and now want to try some which are not so stiff. We are accordingly sending 37-EX into the…

scan0099 Requesting the fitting shop to replace a failed bearing and modify the oil way on the pinion assembly for car 30 EX.
View original record 302 HPS. from Rm/Gry. Rm/Gry2/R.11.12.36. This is to confirm having handed to the Fitting Shop the Pinion Assembly on the rear axle at present on 30 EX. The present bearing has failed. Will you please…

scan0100 Proposals to increase rear axle stiffness for Phantom III, Wraith, and Bentley models.
View original record 302. Sg. and Hs. from E. LESMITH C. Rm. Ey. Da. E.3/HP.19.12.36. Rear Axle Stiffness. Some time ago it occurred to me that rear axle shaft stiffness might be influencing clutch performance, but I was…

scan0101 Request to prepare a standard differential and axle shaft assembly for a Phantom III rear axle.
View original record 302 HPS. from Rm/Smth. Rm/Smth3/R.30.12.36. P.III REAR AXLE. Will you please prepare a standard differential box and axle shaft assembly to interchange with the stiff one in 37-EX: we wish to keep the…

scan0102 Request to remove the stiff rear axle shafts and replace them with the original standard ones.
View original record 302 HPS. from Rm/Smth. Rm/Smth12/R.4.1.36. 37-EX. Will you please remove the stiff rear axle shafts, and put back the original standard ones. Rm/Smth.

scan0103 Options for stiffer axle shafts for the Phantom III rear axle.
View original record LL SMITH 302 BY: O - E. Dd. Rm. HPS. E/HDY.1/HP.21.12.36. Phantom III Rear Axle. We send herewith N.Sch.4982 showing stiffer axle shafts for this car. The upper view shows a shaft 1.400 diameter…

scan0104 Requesting to swap the rear axles between cars 36-EX and 37-EX.
View original record 302. HPS. from Rm/Smth. ↓ Rm/Smth6/R.14.1.37. 36-EX and 37-EX. Will you please swop over the rear axles on these two cars. Rm/Smth.

scan0105 The production of three sets of stiff axle pieces for the Phantom III rear axle.
View original record HPS from Rm/Smth. 302 Rm/Smth7/M.17.2.37. Phantom III Rear Axle. Will you please put in hand a further three sets of stiff axle pieces, N.Sch.4982. Rm/Smth.

scan0106 Requesting the production lead time for a Phantom III stiff rear axle.
View original record RHC from Rm/Smth. 302 Rm/Smth6/M.17.2.37. Phantom III Rear Axle. Will you please let us know how long it would take to get the stiff rear axle N Sch.4982 on to production, once it had been decided to…

scan0107 The production and implementation status of the Phantom III rear axle.
View original record 302. Rm/Smth. - from RHC. RHC.1/EMG.23.2.37. Phantom III : Rear Axle. In reply to your memo' Rm/Smth6/M.17.2.37 the position is as under:- 1. The Drawing Office have given us particulars of the parts…

scan0108 The failure of Phantom III rear rubber buffers due to tubular rivets and tests on alternative fastening methods.
View original record 302 To W/Ex. from HPS/RH. c. to [redacted] c. to Rm. c. to [redacted] HPS/RH.2/CB.3.3.37. PHANTOM III REAR RUBBER BUFFER. Recently six Rear Buffers have failed on Experimental cars due to the failure…

scan0109 Destruction tests of rear axle buffers, showing results of different riveting and bolting methods.
View original record Ex I 133 RUBBER BUFFER F87560 RIVET F87546 WASHER C6510 CASING F87558 RUBBER BUFFER HELD IN CRADLE AS SHOWN AND A SEMI-CIRCULAR BLOCK TO REPRESENT AXLE TUBE WAS PRESSED ON BY THE BROOKHURST…

scan0110 Request for the cost of renewing the half shafts in a Phantom III rear axle following a telephone conversation.
View original record 302. Hd. from Rm/Smth. Rm/Smth10/R.3.3.37. P.III REAR AXLE. Confirming our telephone conversation with Hd/SB, we should be glad to have the cost of renewing the half shafts in a P.III rear axle.…

scan0111 Cost estimate for changing the rear axle shafts on a Phantom III car.
View original record Rm. 302. Hd/SB21/HR.4.3.37. Smth re PHANTOM III REAR AXLE. ----------------------- With reference to your Rm/Smth10/R. 3.3.37., we estimate that the cost of changing the rear axle shafts on a Phantom…

scan0112 Agreement to replace a tubular rivet with a 2-BA bolt on the Phantom III Rear Rubber Buffer.
View original record 302 HPS. c.c. By. Rm. E/W. Insp/Tes. Da.4/HP.8.3.37. Phantom III Rear Rubber Buffer. Referring to HPS/RH.2/CB.3.3.37, we agree to a 2-BA bolt being fitted in the place of the tubular rivet now used,…

scan0113 The cost breakdown for fitting stiffened rear axle shafts to the Phantom III chassis.
View original record 302. To BY. from G/Rb. c. to B/Lid. c. to Rm/Gry. G/Rb.2/A/60/W.5437. Smith Re: Phantom III Chassis - Stiffened Rear Axle Shafts. BY/Cgh3/W.2.4.37. Will you kindly note that the cost to the Company of…

scan0114 Fatigue tests of proposed stiffer axle shafts for the Phantom III, recommending their production.
View original record To Hs. c. to Sg. c. to Da. c. to Sy. 302 Rm/Smth.3/JH.19.4.37. Phantom III Stiff Axle Shafts - N.Sch.4982. We have now completed a series of fatigue tests on the proposed stiffer axle shafts, and find…

scan0115 Joggling test results for Phantom III rear axle shafts.
View original record Phantom III Rear Axle Shafts. Joggling Tests. Crank 6.00 stroke. Link 34.000 long. Arm 8.875 radius. Axle shaft. Flywheel inertia 1.1 slugs ft² Tests results. Sample: Stiff shaft No.1. Fractured…

scan0116 Photographic comparison of standard and stiffened Phantom III rear axle shafts after joggling rig tests.
View original record STANDARD SHAFT AFTER 47 MINS. AT 450 R.P.M. TYPICAL FRACTURE SHOWING RADIAL CRACKS FROM ROOTS OF SPLINES. STIFFENED SHAFT N.SCH.4938 AFTER 236 MINS. AT 450 R.P.M. PHANTOM III REAR AXLE SHAFTS.…

scan0117 Report regarding a failed O.S.R. Hub Outer Ball Race on a 35-EX Phantom III, which was returned for examination.
View original record 3009 1113 302 HOTEL DE FRANCE. CHATEAUROUX. Indre. France. Rm/GWH/IMN/5/JAB. 20th April 1937 To. Rm. c.c. Rm/GWH. 35-EX.PHANTOM III. O.S.R.Hub Outer Ball Race Hoffmann I50. The above bearing failed…

scan0118 Modifications to the Phantom III rear axle, specifically the pinion thrust bearing.
View original record Mr. C. E. B. De. Rm. HFG. E/HDY.2/HP.24.4.37. Phantom III Rear Axle. We send herewith N.Sch.5123 showing modified lubrication for the pinion thrust bearing on the lines of N.Sch.5099 recently issued…

scan0119 Letter from C.C. Wakefield & Co. detailing the results of an examination of a deposit from a gearbox.
View original record BY APPOINTMENT Makers of the Famous "PATENT CASTROL" Motor Oils. C. C. Wakefield & Co., Limited. MANUFACTURERS OF HIGH CLASS LUBRICANTS. GOVERNING DIRECTOR, VISCOUNT WAKEFIELD OF HYTHE. MANAGING…

scan0120 Analysis of mineral matter found in oil, detailing its composition and potential sources of contamination.
View original record -2- Messrs. Rolls-Royce, Ltd. 27th April, 1937. Analysis of mineral matter:- Silica and insoluble matter 18.3% Copper oxide 35.4% Iron and aluminium oxide 29.2% Zinc oxide 10.1% Lime 4.2% If we…

scan0121 Three proposed schemes for the Phantom III back axle hub driving dog.
View original record 302. BY: c.c. E. R. Rm. HPS. E/HDY.1/HP.4.5.37. Phantom III Back Axle. We send herewith N.Sch.5139 showing a hub driving dog with reduced length and increased depth of teeth, on the lines of the…

scan0122 Fitting different rear axle schemes to a Phantom III car for testing.
View original record By. from Rm/Gry. J 302 Rm/Gry2/R.6.5.37. P.III REAR AXLE. With regard to Hdy's memo on wheel drivers, we are arranging to fit scheme 1 on N.Sch.5139 on a P.III car we have going to France shortly. For…

scan0123 Suggestion to modify the Phantom III back axle shafts by increasing bearing surface diameter for additional clearance.
View original record BF. c. Rm. Ws. Da. 302 P.III Back Axle. E/HDY.1/HP.14.5.37. With reference to the stiffer axle shafts as shewn by N.Sch.4982, Ws. has asked for more clearance in the differential casing for reaming…

scan0124 The condition of a rear axle after excessive dynamometer test bed work.
View original record To [redacted] from R.H. c. to Rm. 302 HPS/RH.1/VS.13.5.37. 30.EX. REAR AXLE. Report on condition after excessive Dynamometer Test Bed work. Axle fitted 20. 9. 36. off 25.EX. Total road miles on 30.EX…

scan0125 Inspection report detailing wear and damage on various vehicle components.
View original record - 2 - HPS/RH.1/VS.13.5.37. Trunnion G.53904. Arms worn .002 also badly scored, magnetic tested for cracks and found O.K. Diff. Pinions. Bushes worn .006-.008 and scored in bore, also the bushes had…

scan0126 Inspection report detailing wear and failure of oil seals and gears.
View original record - 3 - HPS/RH.1/VS.13.5.37. Oil Seals. R.H. Centre Case - Leather burnt and breaking up. L.H. " " - Leather becoming hard and solid. Pinion Housing Cover - Leather becoming hard. due to excessive heat…

scan0127 Standardisation of stiffer rear axle shafts for the Phantom III to improve the clutch.
View original record RR 755 (5H) 20396 21/7/36 J.W.S. COMPLETED 11.6.37. 27.5.37 PHANTOM III. STANDARDISATION of PARTS Date 21.4.37. X No. 302 Drawing No. Part List Description of Parts. STIFFER REAR AXLE SHAFTS TO…

scan0128 Estimated cost of new tools and production schedule for the 'C' Series chassis.
View original record PHANTOM III STANDARDISATION OF PARTS Estimated cost of new tools.................... £48. 0. 0. Could be brought on to production at the 76th. chassis in "C" Series (without scrap.) --- Table Data: |…

scan0129 Tests on rear axle pinion bearings, analyzing deflection under various load and torque conditions.
View original record To Rm. from W.Bell. c.c. Rm/Gry. Handwritten: What exactly have we got out of this test? Handwritten: X 302 REAR AXLE PINION BEARINGS. P.III. G.83388 and Bentley GB.2035 The attached charts shew the…

scan0130 Test results for rear axle pinion bearings on Phantom III and Bentley GB 2035 models.
View original record SHEET I 31-5-37 REAR AXLE PINION BEARING TESTS PHANTOM III G 83388 | NATURE OF TEST | LOAD | DEFLECTION NORMAL | DEFLECTION PRELOADED |…

scan0131 Diagram illustrating the test setup for rear axle pinion bearings.
View original record [ "SHEET II", "REAR AXLE PINION BEARING TESTS", "LOAD APPLIED AT 4' RAD.", "FOR TORSION TEST", "JOURNAL LOAD", "THRUST LOAD", "ALL DEFLECTIONS MEASURED ON INNER RACE", "RELATIVE TO TEST BLOCK." ],

scan0132 Recommendation regarding the replacement of mild steel differential boxes on Phantom III cars.
View original record Sg. from Rm/Gry. Hs. c. to E. c. to By. c. to Hd. c. to Br. 302 Rm/Gry.6/AP.10.6.37 P.III. REAR AXLE. Sometime ago it was decided to change all mild steel differential boxes on P.III. cars owing to -…

scan0133 Instructing the swapping of rear axles between experimental cars 33-EX and 36-EX.
View original record To HPS. from Rm/NRC. c. to Rm/FD. 302 - J Rm/NRC.8/AP.14.6.37 Re. 33-EX. and 36-EX. Please remove the rear axle from 33-EX. and fit it to 36-EX, and fit the axle from 36-EX. to 33-EX. This will mean…

scan0134 The Phantom III Rear Axle, confirming a recommendation not to change a part on any further cars.
View original record S/W Gry 302 To Rm/Gry. from Sg. Copy to Hs.E.BY. Hi.By. re P.III. Rear Axle. Sg15/E16.6.37 Referring to Rm/Gry.6/AP.10.6.37 I have spoken to Hs. about this and your recommendation is agreed, xxx i.e.…

scan0135 The preparation of a rear axle fitted with light type axle shafts for car 36-EX.
View original record HPS. from Rm/NRC. 302 Rm/NRC2/R.21.6.37. re: 36-EX. Please prepare for the above car a rear axle fitted with light type axle shafts. Rm/NRC.

scan0136 Requesting new 'Perfect' oil seals for the Phantom III rear axle with stiff half shafts.
View original record To HPS. from Rm/Gry. Rm/Gry.7/AP.5.7.37 P.III. REAR AXLE. Will you please obtain some Perfect oil seals size 225114 and fit these to axles having the stiff half shafts. Those on 35-EX., type 225110,…

scan0137 Violent clonk in the transmission and subsequent failure of the rear axle on a Phantom III test car.
View original record CHATEAUROUX. Rm/IMW/4/JAB.10.7.37. #3 302 To. Rm. c.c. Ev.Gry. c.c. H.I.S. c.c. Rm/GWH. 32-EX. PHANTOM III. Rear Axle. Ever since leaving Derby, we have experienced on occasions a violent clonk in the…

scan0138 Fitting of a new rear axle on a Phantom III and listing the replaced parts.
View original record CHATEAUROUX. Rm/IMW/4/JAB.30.7.37. 300a 302 To. Rm. C/o.Rm/Cty. C.c. Hives. C.c. Rm/Csltf 32-KX. PHANTOM III. Rear Axle. We fitted the rear axle and fetched the car back from Paris yesterday. The…

scan0139 The progress of a rear axle job for a Phantom III at the Paris Depot.
View original record CHATEAUROUX. Rm/IMW/3/JAB.3.8.37. [Handwritten in red ink] 302 also 300a To. Rm. [Strikethrough] o. Sr. [/Strikethrough] 32-EX. PHANTOM III. Rear Axle Job at Paris Depot. Replying to your memo…

scan0140 Recurring rear axle oil seal leaks on Phantom III chassis 32-EX and 35-EX, possibly caused by high temperatures after fast runs.
View original record CHATEAUROUX. Rm/IMW/6/JAB.4.8.37. 302 also 300a To: Rm. c. Rm/Gry. c. Rm/GWH. 32-EX. PHANTOM III. Rear Axle Oil Seals. You will note from the Daily Report that we are again experiencing escape of axle…

scan0141 Trouble with rear axle buffers and a proposal to fit Packard-type buffers.
View original record To HPS. from Rm/Les. Rm/Les.9/AP.10.8.37 Ph.III. REAR AXLE BUFFERS. We are experiencing trouble with the latest rear axle buffers on 32-EX. in France. These buffers apparently will still not resist a…

scan0142 Request for six 'Gaco' material oil seals with specified dimensions and a query about their temperature resistance.
View original record Copy to Roy. " " G/JWH. 302 10th August 1937. Rm/Gry.11/AP. Messrs George Angus & Co.Ltd., 7 Bury Street, St. Mary Axe, LONDON E.C.3. For the attention of Mr.H.E.Beck. Dear Sirs, Will you please let…

scan0143 Letter from George Angus & Co Ltd regarding the inability to supply a standard oil seal and offering an alternative or custom design.
View original record TELEGRAMS: ANGUSTATE, ALD, LONDON ESTD. 1790. TELEPHONE: AVENUE 5176 ANGUS OIL SEALS TECHNICAL LEATHER MOTOR AND ENGINEERING PRODUCTS GEORGE ANGUS & CO LTD 7, BURY STREET, ST MARY AXE, X LONDON,…

scan0144 Letter to a supplier clarifying a dimensional error on an order for oil seals and requesting the correct parts.
View original record 302 Rm/Gryl/R. 13th August, 1937. Messrs. Geo. Angus & Co.,Ltd., 7, Bury Street, St. Mary Axe, LONDON. E.C.3. Dear Sirs, We thank you for your letter of August 12th - reference AP/GH - concerning oil…

scan0145 Letter to The Gleason Works regarding a modification to the pinion and crown wheel for a 12-cylinder car.
View original record 302- August 25th 1937 Rm/Gry.4/AP. The Gleason Works, 1000 University Ave., ROCHESTER N.W. U.S.A. Dear Sirs, We send you herewith drawings of the pinion and crown wheel used on our 12 cylinder car,…

scan0146 Wheel driver failure on the PH.III rear axle and a recommendation for a material change.
View original record By. from Rm/Gry. c. Hs. c. Da. c. Hdy. 302 Rm/Gry.8/AP.28.8.37 PH.III. REAR AXLE We have experienced a failure of the wheel driver on 32-EX. running in France. The failure was in the radius between…

scan0147 Letter from Gleason Works regarding a preliminary investigation and recalculation for a 12-cylinder car's gear ratio.
View original record GLEASON WORKS Builders of Bevel Gear Machinery for Over Seventy Years 1000 UNIVERSITY AVENUE, ROCHESTER, N. Y., U. S. A. September 17, 1937 + 302 Rolls-Royce Ltd. Derby England Gentlemen: We…

scan0148 Modifications to the Phantom III rear axle hypoid bevel gears based on recommendations from Gleason Works.
View original record Rm/Gry. 302 Cgh.2/W.13.10.37. Phantom III - Rear Axle Hypoid Bevel Gears. With reference to letter dated 1st. October, 1937 received from Gleason Works of America, together with undeveloped summary…

scan0149 Letter from Gleason Works enclosing duplicate prints and a photostat print for an 8/34 hypoid gear ratio.
View original record GLEASON WORKS Builders of Bevel Gear Machinery for Over Seventy Years 1000 UNIVERSITY AVENUE, ROCHESTER, N. Y., U. S. A. October 1, 1937 By Rolls-Royce Ltd. Derby, England Phantom III Gentlemen: With…

scan0150 Summary sheet detailing specifications and changes for Hypoid Gears.
View original record HYPOID GEARS FOR ROLLS ROYCE LTD SUMMARY NO. 823 COMBINATION 8 x 34 GEAR D.P. 3.4 PINION OFFSET .850" ABOVE BELOW PROFILE BEARING CHANGES DRIVE REVERSE MORE BEARING LESS BEARING MORE BEARING LESS…

scan0151 Summary sheet for the settings and dimensions of Hypoid Gears, Summary No. 823.
View original record FORM F.E.D 641 HYPOID GEARS SUMMARY NO. 823 GLEASON WORKS ROCHESTER N.Y. U.S.A. CONCAVE (GEAR TOOTH BEARING) CONVEX (GEAR TOOTH BEARING) FOR: ROLLS ROYCE LTD. COMBINATION: 8x34 GEAR PITCH: 3.4 GEAR…

scan0152 Summary sheet detailing the specifications for manufacturing Hypoid Gears, summary number 823.
View original record FORM *ED 641 HYPOID GEARS SUMMARY NO. 823 GLEASON WORKS ROCHESTER N.Y. U.S.A. CONCAVE (GEAR TOOTH BEARING) CONVEX (GEAR TOOTH BEARING) FOR: ROLLS ROYCE LTD. COMBINATION: 8x34 GEAR PITCH: 34 GEAR FACE:…

scan0153 Drawing comparing old and new 8x34 hypoid pinion and gear blank outlines.
View original record PINION 2.525" GEAR 5.313" ROLLS ROYCE LTD. 8 x 34 HYPOID S#823 DOTTED LINES SHOW NEW PINION AND GEAR BLANK OUTLINE SUPERIMPOSED ON OLD BLANK OUTLINE NOTE: POINT 'C' HAS RAISED APPROXIMATELY .060" AND…

scan0154 Standardisation of parts for the Phantom III, concerning Large Differential Thrust Washers.
View original record RR 35 (10H) 38137 7-4-37 WHK 26070 COMPLETED 14.10.37 PHANTOM III STANDARDISATION OF PARTS. Description of Parts: LARGE DIFFERENTIAL THRUST WASHERS. Origin: To decrease wear and rate of development of…

scan0155 Mandating the replacement of Phantom III mild steel differential boxes on 34 cars due to a failure.
View original record Hd. from Rm/Gry. 302 Rm/Gry1/R.26.10.37. P.III DIFFERENTIAL BOX. In view of the failure of a Mild Steel Differential Box on a P.III car on the Continent, we must withdraw our Rm/Gry6/AP.10.6.37. in…

scan0156 Confirming an arrangement to change the rear axles on cars 33.EX and 37.EX.
View original record To Rm/FD. 302 Rm/NRC.17/JH.27.10.37. re 33.EX and 37.EX. Confirming our conversation of this afternoon, will you please arrange to have the rear axles of the above 2 cars changed over so that we can…

scan0157 Changing differential casings from mild steel to nickel steel on 35 cars.
View original record To Hd. from Rm/Gry. c. By. 302 Rm/Gry.12/AP.11.11.37. P.III. Rear Axle Differential Casings. When the remaining 35 cars have had their differential casings changed over from mild steel to nickel…

scan0158 Recurring complaint of rear wheel drive rattles on the Phantom III model.
View original record To By.. from Rm/GWH. c. to Rm. c. to RHC. c. to Mx. c. to Hs. 302 Rm/GWH.17/N.21.12.37. Phantom III - Rear Wheel Drive Rattles. We do not seem to be free from this complaint on any of our cars. The…

scan0159 Issue of wheel driver knocks and proposed solutions for various models.
View original record By. from Rm/Gry. c. Hs. c. Da. c. RHC. c. Da/Hdy. c. MX. 302 WHEEL DRIVERS GWH. has pointed out in Rm/GWH.17/W.21.12.37 that the Ph.III. is not free from wheel driver knocks. We knew this sometime ago…

scan0160 The creation of new wheel drivers for specific vehicle models to address depot complaints.
View original record To HPS. from Rm/Gry. 302 Rm/Gry.2/AP.22.12.37. Ph.III. AXLE Will you please put in hand immediately a pair of wheel drivers to G.85612 for 35-EX. These are required to overcome Depot complaints.…

scan0161 Issue with rear wheel driver forgings for the Phantom III chassis due to incorrect machining allowance.
View original record To. BY. X302 BY/CRL.3/E.22.12.37. PHANTOM III. CHASSIS. REAR HUB. SECTION 6170. REAR WHEEL DRIVERS. G.54989. in S/N. - 1st. in "A" to 175 in "C" Series. G.85612. in S/ZNCR. was produced to BY's.…

scan0162 Proposal to standardise the Wraith rear axle side plate for use on the Phantom III to reduce factory costs.
View original record [Handwritten at top] F.J. HARDY - What about this Rm [Typed, following routing section is struck through] To. Ry & Rm...From RHC/SB. c.c. to Hs. [Typed] 302 [Typed] RHC/SB.2/MC.25.1.38. REAR AXLE -…

scan0163 Confirming no objection to using the Wraith axle casing side plate on the Phantom III.
View original record 302. To By. from Rm/FJH. c. HS. c. RHC/SB. Rm/FJH.4/AP.7.2.38 REAR AXLE - PHANTOM III. With reference to memo RHC/SB.2/MC.25.1.38, suggesting that we should use the Wraith axle casing side plate on…

scan0164 Modification notice regarding the driving flange, propeller shaft, and associated parts for the Phantom III chassis.
View original record To. [REDACTED] o. [REDACTED] c. Rm/Gry. 302. BY/CRL.1/E.12.3.38. PHANTOM III. CHASSIS. 1st. & 3rd. MOTION SHAFT. SECTION 6040. PROPELLER SHAFT. SECTION 6110. REAR AXLE. SECTION 6120. G.CD.537. Modfn.…

scan0165 Parts list update detailing replacements and parts no longer required, continued on page 2.
View original record (Cont'd). -2- BY/CRL.1/E.12.3.38. Sec.6110. D.54141. Bolt. Coupling Flange. 8 off per set. K.4511. Grover Washer. 8 " " " The pieces at present used are replaced by the above as follows :- Sec.6040.…

scan0166 Modification to the Rear Axle Driving Flange for the Phantom III to stiffen the boss.
View original record DX/MS c. Rm. c. De/Des. c. De/Devs 302. DA.5/G.15.3.38. F.J.H. AHK GRY REAR AXLE DRIVING FLANGE. PHANTOM III. Herewith is G.CD.537 showing a modification to the Driving Flange on the Hypoid Pinion to…

scan0167 Notification detailing a modification to the Phantom III rear axle shaft and driver.
View original record c. Rm. 302 . DA.17/G.11.5.38. PHANTOM 111. REAR AXLE. [Handwritten and struck through: GRY-AX.] Please receive herewith :- G1CD.668 Modification to Rear Axle Shaft and Driver. The splines on the shaft…

scan0168 Recommendation to rationalize the Phantom III model with a new frame, Packard type suspension, and a semi-floating rear axle.
View original record 302. By. from Rm. c. Da/Hdy. Rm3/R.17.5.38. SEMI-FLOATING AXLE. When we rationalise P.III by giving it a new frame and the Packard type of suspension, we should like to bring it in line with the rest…

scan0169 Re-issue of print G.CD.668 for the Phantom III rear axle driving shaft, detailing an increase in the diameter of the external boss.
View original record BT/MS c. Rm. 302 DA.3/G.3.6.38 F.J.H. PHANTOM III - REAR AXLE DRIVING SHAFT. Please receive herewith G.CD.668, which has already been issued, and has now had an increase in the diameter of the…

scan0170 Instruction to modify the rear axle driving dog for the Phantom III 'E' series.
View original record RY/HS. c. Rm. 302 DA.12/G.22.9.38. PHANTOM 111. 'E' SERIES. REAR AXLE. GRY Referring to G.CD.668 Rear Axle Driving Shaft and dog, it is intended to put this on 'E' series. We re-issue the drawing…

scan0171 Requesting two pairs of gears for the rear axle to be tested to destruction.
View original record 302 also 202 To HPS. from Rm/Gry. Rm/Gry.4/MH.19.11.38. REAR AXLE. Will you please put in hand two pairs of gears in S/ZNCR. material similar to the Bentley 'M' series except that the ratio should be…

scan0172 Testing of a Bentley SO gearbox in a Phantom III chassis and associated component changes.
View original record 302 also 802 To HPS. from Rm/Gry. Rm/Gry.7/MH.20.12.38. TEST OF BENTLEY SO GEARBOX IN PHANTOM III CHASSIS. With regard to our asking you to fit the second of the new overdrive boxes, B.V. No.2, in…

scan0173 Phantom III rear axle oil seal tests using double oil seals.
View original record 302. To Rm/Gry. from HPS/B1. c.c. to Dcr. c.c. to Hcy. c.c. to Ry. HPS/B1.1/IC.25.8.39. Phantom III Rear Axle Oil Seal Tests. Double Oil Seals. G.C.D. 1340. For the purposes of this test which was…

scan0174 Inspection finding grease dissolving in oil between seals and proposing alternative solutions.
View original record -2- On inspection however, it was observed that the grease had again dissolved in the oil and had escaped from between the seals towards the side from which the oil was fed. There was no leakage of…

scan0175 Fitting of a Phantom front axle to a Spectre vehicle and the resulting axle control considerations.
View original record To RHC. +301 Hs/Rm.18/KW.14.2.35. Fitting Phantom Front Axle to the Spectre. You will remember at the last Spectre Conference it was decided to fit the Phantom front axle to the Spectre. In this…

scan0176 Schematic N.Sch.4396 for a modified conventional front axle for the Spectre model.
View original record SECRET. X 301 To BY. from Da. Rm [handwritten signature] Da.2/HP.2.3.35. c. Wop. Er. Hs. Hdy. R.C. Spectre with conventional Front Axle. Herewith is N. Sch.4396 shewing the front axle pivots, steering…

scan0177 The Spectre model's conventional front axle and its associated forging schedule.
View original record +301 To-BY. from Da. Da.1/HP.2.3.35. c. Wer. E. Hs. Hdy. RHC. Spectre with Conventional Front Axle. Herewith is N. Sch.4394, Front Axle Forging, etc. The brake actuating gear on the axle will follow…

scan0178 Secret memorandum regarding the Spectre model's conventional front axle and the mounting of a modified Phantom shock damper.
View original record To EH. from Da. SECRET. Da.1/HP.4.3.35. C. Wor. E. Hs. Hdy. RWS. 1301 Spectre with Conventional Front Axle. Herewith are N. Sch's 4391 and 4397 which together show the mounting of the front shock…

scan0179 The mounting of D.W.S. Permanent Jacks on the front axle of a Spectre model.
View original record 4301 To EY. from Da. c. Worp. Es. Hdy. HG. Da.1/HP.4.3.35. Spectre with Conventional Front Axle. Herewith is N. Sch.4398 which shews the mounting of the D.W.S. Permanent Jacks on the front axle. The…

scan0180 Brake actuating gear and a minor modification to the front axle for the Spectre model.
View original record +30 / To DY. from Da. SECRET. Da.2/HP.6.3.35. c. Wor. E. Hs. Hdy. FMG Spectre with conventional front axle. Herewith is N. Sch.4395, layout of the Brake Actuating Gear attached to the front axle. We…

scan0181 Layout of the front brake pull rod for the Spectre conventional front axle.
View original record +301 To BY. from Da. SECRET. Da.2/HP.7.3.35. C. Wor. F. Hs. Hdy. RHC. Spectre - Conventional Front Axle. Herewith is N.Sch.4403, layout of the geometry of the front brake pull rod, in connection with…

scan0182 Arrangement of the front brake intermediate lever and air damper for a Spectre with a conventional front axle.
View original record +301 Rm To EYS. from Da. c. Messrs. Hs. Hdg. EMG. De.4/HP.9.3.35. Spectre with Conventional Front Axle. Herewith is N. Sch.4410, arrangement of the front brake intermediate lever and air damper, made…

scan0183 Secret memo regarding diagram N. Sch. G416 for the Spectre's brake leverages with a semi-servo system.
View original record To - Dr. from Da. C. Wer. E. Hs. Wky. RMC. SECRET. [Handwritten: Rm +301] Da.1/HP.13.3.35. Spectre with Conventional Front Axle. Herewith is N. Sch. G416 diagram of the Brake Leverages of the…

scan0184 Secret memo regarding camshaft bearing provisions and brake system springs for the Spectre model with a conventional front axle.
View original record Rm x301 To EY. from Da. SECRET. Da.2/HP.14.3.35. c. E. Hs. RHC. Spectre with Conventional Front Axle. Herewith is N. Sch.4417 shewing a provision on the camshaft bearing for an oil drain and shield,…

scan0185 Secret memo regarding drawing N.Sch.4421 which shows the J.3. type side steering tube joints for the Spectre with a conventional front axle.
View original record X30 / To RY from Da. c.c. HS. JMG. Wdge SECRET. Da.1/HP.15.3.35. Spectre with conventional front axle. Herewith is N. Sch.4421 which shews the ends of the J.3. type side steering tube joints made…

scan0186 Modifications to the Phantom III front axle pivot following a 10,000-mile test.
View original record To BY Copy to Hs/Rm. RHC x301 E/Ev.7/MN.19.2.36. Phantom III - Front Axle Pivot. We send herewith N.Sch.4768 showing a number of modifications to the Phantom III front axle pivot resulting from the…

scan0187 Modifications to the bolting of the steering lever to the yoke piece to improve clearance and design.
View original record -2- with this question. 5. Bolting of Steering Lever to Yoke Piece. We have made certain modifications to improve the bolting of the steering lever to the yoke piece to give clearance for a box…

scan0188 Modifications and manufacturing options for the Phantom III front axle top pivot bearing.
View original record BY. C.F.E/B.V. Hs/Rm. Rm +301 Da.4/GP.26.2.36. Phantom III Front Axle Top Pivot Bearing. Confirming our discussion, referring to N.Sch.4768, we wish to make the metal of the yoke piece above the felt…

scan0189 Confirming receipt of Cruciform Assemblies and Front Crossmember parts for the Phantom III, sent to the Experimental Department.
View original record 301. Rm. c.c. Rm/Gays c.c. E c.c. By. Roy/Dnl/ME.6.11.36. Please note we have now received the two Cruciform Assemblies and the two sets of Front Crossmember and Cover in .080" material for Phantom…

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