Rolls-Royce Archives
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
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DescriptionDateIdentifier
Table listing the weights of various components for 1937 Buick Series '40', '60', '80', and '90' models.24th Mar 1937Box 114 \ 1  scan0109
Cost-saving design change to the Wraith stub axles by removing holes.7th Jul 1937Box 114 \ 1  scan0110
Proposing the standardization of wheel driver and half shaft serrations for Wraith and Bentley models.28th Aug 1937Box 114 \ 1  scan0111
Standardizing wheel driver and axle shaft serrations for various Bentley and Wraith models.31th Aug 1937Box 114 \ 1  scan0112
Replacing bronze washers with steel ones in rear axles due to lubricant corrosion.8th Sep 1937Box 114 \ 1  scan0113
Letter detailing the heat treatment process for an S.82 axle shaft.17th Sep 1937Box 114 \ 1  scan0114
Fitting two pairs of differential bearings with steel cages for running on Hypoid oil.10th Dec 1937Box 114 \ 1  scan0115
Half shaft spline failures and design variations from E.R.A.16th Dec 1937Box 114 \ 1  scan0116
Blueprint illustrating three different designs for E.R.A. Axle Half Shafts.21th Dec 1937Box 114 \ 1  scan0117
Letter to S.S. Cars Ltd. enquiring about semi-floating axles and the cause of half-shaft failure.21th Dec 1937Box 114 \ 1  scan0118
Comparing major stresses on semi-floating axles for various car models.22th Dec 1937Box 114 \ 1  scan0119
Inquiry to The Graham-Paige Corporation regarding their rear axle and shaft design.22th Dec 1937Box 114 \ 1  scan0120
The axle shaft diameter for the B.50 and Wraith half floating rear axle.29th Dec 1937Box 114 \ 1  scan0121
Rear axle driving dog rattle on Ph.III, 25/30 HP, Ph.II, and 20/25 HP models.12th Jan 1938Box 114 \ 1  scan0122
The replacement of bronze differential thrust washers with A.C.1. material for rear axles.26th Mar 1938Box 114 \ 1  scan0123
Rig testing and analysis of a cracked Cadillac axle shaft for comparison with a semi-floating axle shaft.31th Mar 1938Box 114 \ 1  scan0124
Laboratory analysis of a Cadillac axle shaft detailing its chemical composition and hardness.14th Apr 1938Box 114 \ 1  scan0125
Laboratory analysis report on the material composition of an Oldsmobile halfshaft.14th Apr 1938Box 114 \ 1  scan0126
Laboratory analysis of drillings from an Oldsmobile rear axle half shaft.20th Apr 1938Box 114 \ 1  scan0127
Dimensioned drawing and material analysis for an Oldsmobile Half Shaft.4th May 1938Box 114 \ 1  scan0128
Design and materials for semi-floating rear axles, comparing American and British practices.4th May 1938Box 114 \ 1  scan0129
Modifications to the rear axle shafts and bevel wheels for B.50 and B.111 models.11th May 1938Box 114 \ 1  scan0130
Letter from Hardy Spicer & Co. following up on an inquiry about Salisbury Rear Axles and sending a print for a Model 52 axle.11th May 1938Box 114 \ 1  scan0131
Letter from the Experimental Dept. requesting a quotation for 2,000 rear axle shaft forgings.24th May 1938Box 114 \ 1  scan0132
Letter requesting a quotation for 2,000 rear axle shaft forgings.24th May 1938Box 114 \ 1  scan0133
Letter from the Experimental Department requesting a quotation for rear axle shaft forgings.24th May 1938Box 114 \ 1  scan0134
Request for a quotation for 2,000 rear axle shaft forgings from The Park Drop Forge Co.24th May 1938Box 114 \ 1  scan0135
Findings on semi-floating rear axles following a visit to Rover.25th May 1938Box 114 \ 1  scan0136
Use of pressed-on collars for axle shaft location on a semi-floating rear axle.26th May 1938Box 114 \ 1  scan0137
Cover memo for correspondence regarding banjo axle construction.30th May 1938Box 114 \ 1  scan0138
Issues with the Wraith and Ph.III transmission and proposing a modification to the B.50 axle.30th May 1938Box 114 \ 1  scan0139
Modification to the Pinion Coupling piece and centre casing for the semi-floating rear axle.13th Jun 1938Box 114 \ 1  scan0140
Fitting of bearing retaining collars on a semi-floating rear axle, considering the necessity of a Belleville washer.18th Jun 1938Box 114 \ 1  scan0141
Blueprints for new Front Axle Yokes for the Bentley III and Bentley 50 models.5th Jul 1938Box 114 \ 1  scan0142
Available axle ratios and tyre sizes for new cars, including Bentley and proposed models.19th Jul 1938Box 114 \ 1  scan0143
Recommending the purchase of six more sets of 9/37 axle gears from the supplier Gleasons.20th Jul 1938Box 114 \ 1  scan0144
Material changes for rear axle differential washers and bushes due to corrosion from new hypoid oils.12th Aug 1938Box 114 \ 1  scan0145
Preliminary report on the design, testing, and issues found with a new semi-floating axle.19th Aug 1938Box 114 \ 1  scan0146
Analysis of axle and gear failures and outlining future testing plans.19th Aug 1938Box 114 \ 1  scan0147
Requesting the stripping and rebuilding of a semi-floating dynamometer axle after testing.24th Aug 1938Box 114 \ 1  scan0148
Surface failure of gear teeth on a semi-floating axle and requesting hardness testing.10th Sep 1938Box 114 \ 1  scan0149
Analysis of the effects of increasing hypoid in the semi-floating rear axle on the coachwork of B.III, B.50, and Wraith 80 models.15th Sep 1938Box 114 \ 1  scan0150
General remarks comparing the benefits of an intermediate propeller shaft bearing versus hypoid gearing in various car models.15th Sep 1938Box 114 \ 1  scan0151
Blueprint diagram showing the top level and cross section of the Wraith 80 frame.14th Sep 1938Box 114 \ 1  scan0152
Blueprint showing a profile view of a Wraith 80 chassis frame.16th Sep 1938Box 114 \ 1  scan0153
Request to fit a new pair of 8/37 gears to a dynamometer semi-floating rear axle due to suspected oil issues causing scoring.21th Sep 1938Box 114 \ 1  scan0154
Dynamometer test of a semi-floating axle, discussing component wear and lubricant performance.22th Sep 1938Box 114 \ 1  scan0155
Updated specifications for semi-floating axles following dynamometer testing.27th Sep 1938Box 114 \ 1  scan0156
Comparing the pros and cons of semi-floating axles versus fully floating axles.29th Sep 1938Box 114 \ 1  scan0157
Weight analysis comparing semi-floating and fully-floating axles with pressed steel and wire wheels.29th Sep 1938Box 114 \ 1  scan0158
Rear axle specifications and suggestions for various car models.7th Oct 1938Box 114 \ 1  scan0159
Semi-floating version of the Wraith 10' axle and propeller shaft requirements.7th Oct 1938Box 114 \ 1  scan0160
Rear axle crown wheel and reduction ratio specifications for various engines.13th Oct 1938Box 114 \ 1  scan0161
Requesting a new rig for fatigue testing four semi-floating axle half shafts at once.3rd Nov 1938Box 114 \ 1  scan0162
The dynamometer testing of axle gears for an 8-cylinder car.4th Nov 1938Box 114 \ 1  scan0163
Request for a semi-floating axle assembly to test if jacking causes the bridge piece to misalign.15th Nov 1938Box 114 \ 1  scan0164
Requesting a drawing for a semi-floating axle for the 'Lagonda Chaser' (B.50) model.22th Dec 1938Box 114 \ 1  scan0165
Correction notice for the axle shaft oil seal part number on the 65I Offset Hypoid Semi-floating Rear Axle.2nd Jan 1939Box 114 \ 1  scan0166
Required ratios for the .650 Hypoid Semi Floating Axle for various models.18th Jan 1939Box 114 \ 1  scan0167
Request to the laboratory to test the effect of GX oil on different types of bronze and steel components.14th Feb 1939Box 114 \ 1  scan0168
Comparative analysis table of rear axle half shafts for various car models.22th Feb 1939Box 114 \ 1  scan0169
The standardization of rear axles to two specific types to reduce variations and simplify the design.8th Mar 1939Box 114 \ 1  scan0170
Modifications to secure axle tube nuts to prevent oil leaks on a new axle design.8th Mar 1939Box 114 \ 1  scan0171
Blueprint showing a cross-section of a simplified crown wheel mounting.9th Mar 1939Box 114 \ 1  scan0172
The oil seals, wheel bearing grease, and air vent hole requirements for rear axles PD.312.9th Mar 1939Box 114 \ 1  scan0173
Particulars of ratios and tracks for the new semi-floating axle PD.312.9th Mar 1939Box 114 \ 1  scan0174
Technical memorandum discussing two methods for axle oil retention and an analysis of current seal failures.10th Mar 1939Box 114 \ 1  scan0175
The performance, reliability, and further testing of the semi-floating axle.13th Mar 1939Box 114 \ 1  scan0176
Test results and design considerations for axles and wheels.13th Mar 1939Box 114 \ 1  scan0177
Experimental car testing, component reliability, and market competition.13th Mar 1939Box 114 \ 1  scan0178
Correcting a previously stated torque figure and figure of merit for the 8-cylinder engine.15th Mar 1939Box 114 \ 1  scan0179
Observations and calculations regarding a proposal for the simplification of a semi-floating rear axle.16th Mar 1939Box 114 \ 1  scan0180
Continuation of a discussion on axle and bearing design, covering gear backlash, bearing types, and material choices.16th Mar 1939Box 114 \ 1  scan0181
List of lubricants that have passed the mechanical running test of a rear axle drive with hypoid gears.16th Mar 1939Box 114 \ 1  scan0182
List of approved lubricants, their marketers, and addresses (continued page).16th Mar 1939Box 114 \ 1  scan0183
List of approved lubricants, their marketers, and addresses (Continued).22th Feb 1939Box 114 \ 1  scan0184
Continuation of a list of approved lubricants, detailing the test specifications for axles.22th Feb 1939Box 114 \ 1  scan0185
Laboratory report detailing corrosion tests of four different 'high pressure' axle oils on various metal specimens.31th Mar 1939Box 114 \ 1  scan0186
Chemical analysis and comparison of lubricating oils, focusing on sulphur and chlorine content and their corrosive properties.31th Mar 1939Box 114 \ 1  scan0187
Analysis and comparison of four different oils based on their chemical properties and corrosive potential.31th Mar 1939Box 114 \ 1  scan0188
The results of corrosion tests on various metals immersed in different types of oil.31th Mar 1939Box 114 \ 1  scan0189
The appearance of deposits on test specimens after corrosion tests.3rd Apr 1939Box 114 \ 1  scan0190
Confirming a request to arrange a trial for a non-straddle mounted pinion in a PD.312 rear axle.3rd Apr 1939Box 114 \ 1  scan0191
Axle ratio decisions for 'B.V.' and 'Ripple' models.6th Apr 1939Box 114 \ 1  scan0192
Specifying the required grade for half shaft bearings on a semi-floating rear axle.12th Apr 1939Box 114 \ 1  scan0193
Testing of a double oil seal for a Phantom III axle.25th Apr 1939Box 114 \ 1  scan0194
Requesting the examination of rear axle oil seals for quality, workmanship, and fit.26th Apr 1939Box 114 \ 1  scan0195
Copy of an experimental order placed with British Oil Seals Ltd for various seals.14th Apr 1939Box 114 \ 1  scan0196
Rejecting a suggested alternative supplier for oil seals due to quality concerns.27th Apr 1939Box 114 \ 1  scan0197
Rig test for a scheme to prevent the drying up of oil seals.1st May 1939Box 114 \ 1  scan0198
Letter to British Timken Ltd. regarding an experimental rear axle bearing and a request for two mirror-finish bearings.4th May 1939Box 114 \ 1  scan0199
Letter from British Timken clarifying bearing specifications for a rear axle experiment.5th May 1939Box 114 \ 1  scan0200
Parts list for a non-straddle mounted pinion rear axle modification on a Bentley 111 & 50 chassis.9th May 1939Box 114 \ 1  scan0201
Rear axle parts required for a conference.10th May 1939Box 114 \ 1  scan0202
Parts list for various vehicle configurations, including Continental, Rear Brakes, and different gear sets.10th May 1939Box 114 \ 1  scan0203
Letter to Hoffmann Manufacturing Co. Ltd. requesting experimental bearings and data on bearing deflection under load.12th May 1939Box 114 \ 1  scan0204
Request for a covering order for two R.345.LL type bearings for experimental purposes.12th May 1939Box 114 \ 1  scan0205
Details for fitting rear axle rebound straps to two chassis.12th May 1939Box 114 \ 1  scan0206
Letter to British Timken Ltd. regarding a burst outer race on a bearing used in an experimental rear axle.1st Jun 1939Box 114 \ 1  scan0207
Letter from a bearing manufacturer regarding the axial deflection and end movement of a ball journal bearing under various loads.2nd Jun 1939Box 114 \ 1  scan0208


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