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
The endurance test of Steering Pivot P.3372, detailing component failures over laps.5th Jul 1913Box 2 \ B002_X168  00000001-page137
Log of component failures and replacements recorded by lap number during an endurance test.5th Jul 1913Box 2 \ B002_X168  00000001-page138
Test report suggesting improvements to the Pendulum Steering lever and a solution for frequently breaking front springs.7th Jul 1913Box 2 \ B002_X168  00000001-page139
Cover letter attaching Mr Halseby's report on the test of Steering Pivots P.3372.7th Jul 1913Box 2 \ B002_X168  00000001-page140
The failure test of Pivots C.471 X.106.7th Jul 1913Box 2 \ B002_X168  00000001-page141
Covering memo attaching Mr Haldenby's report on the test of steering pivot F.3372.7th Jul 1913Box 2 \ B002_X168  00000001-page142
Internal memorandum discussing the strength and fitment of steering pivots C.471 based on a test report.7th Jul 1913Box 2 \ B002_X168  00000001-page143
Cover letter for a report on a steering pivots experiment.7th Jul 1913Box 2 \ B002_X168  00000001-page144
Broken axle pivot from a Le Canadel vehicle, concluding it was not a material flaw and requesting further testing.1st Apr 1919Box 2 \ B002_X168  00000001-page145
The risk of steering pivots breaking on a 10 HP car from 1904 and the need to prevent an accident.11th Jul 1913Box 2 \ B002_X168  00000001-page146
Weekly report from Experimental Dept. 'B' on steering pivots, a wire wheel, and an engine examination.10th Jul 1913Box 2 \ B002_X168  00000001-page147
Fractured Steering Pivot F.3372 and a request for another test by Mr Royce.14th Jul 1913Box 2 \ B002_X168  00000001-page148
Instruction to the Order Office to provide a steering pivot for destructive testing.14th Jul 1913Box 2 \ B002_X168  00000001-page149
Weekly report from the Road Chassis Department 'H' on issues with the revolving test tackle, specifically a broken pivot and subsequent design modifications.15th Jul 1917Box 2 \ B002_X168  00000001-page150
Report from Hurst on a series of inspections conducted on Chassis 2301.16th Jul 1913Box 2 \ B002_X168  00000001-page151
Attaching a production card for a single F.3372 steering pivot.16th Jul 1913Box 2 \ B002_X168  00000001-page152
Experimental Department 'B' weekly report on steering pivots, sideshaft gears and other component tests.22th Jul 1913Box 2 \ B002_X168  00000001-page153
From F.H.R. giving the instruction not to change the steering pivots C.471.23th Jul 1913Box 2 \ B002_X168  00000001-page154
Internal instruction sheet for completing work on a specific order.25th Jul 1913Box 2 \ B002_X168  00000001-page155
The test of a second pivot which broke after 4.5 hours on the reversal test rig.14th Aug 1913Box 2 \ B002_X168  00000001-page156
Cover memo for a report on the test of a second steering pivot, part F.3872.14th Aug 1913Box 2 \ B002_X168  00000001-page157
The test results of a second stub axle and proposed modifications to the steering pivot.15th Jun 1913Box 2 \ B002_X168  00000001-page158
The concluding page of a report discussing components that have broken versus those that stood well, and the need for comparison against a standard.16th Aug 1913Box 2 \ B002_X168  00000001-page159
The use of spring buffers or elasticity in steering pivots and levers to absorb road shocks.19th Aug 1913Box 2 \ B002_X168  00000001-page160
Request for reports on steering experiments and comparative tests of steering levers.5th Aug 1913Box 2 \ B002_X168  00000001-page161
In response to an instruction sheet, attaching reports on steering pivot experiments.18th Aug 1913Box 2 \ B002_X168  00000001-page162
Instruction sheet for machining aluminium front axle parts for trial purposes.21th Aug 1918Box 2 \ B002_X168  00000001-page163
Benefit of spring buffers for the life of steering gear based on experiments by Mr Hives.21th Aug 1913Box 2 \ B002_X168  00000001-page164
Instructions regarding modifications to a carburettor drawing, including strengthening the upper lip and altering dimensions.2nd Jun 1913Box 2 \ B002_X168  00000001-page165
Steering pivots and introducing elasticity into the steering mechanism.25th Aug 1913Box 2 \ B002_X168  00000001-page166
Providing feedback on blueprints for steering pivots, requesting re-machining and retesting.27th Aug 1913Box 2 \ B002_X168  00000001-page167
Instructions regarding a pencil drawing of a suggested new pivot for the 10HP 2-cylinder cars.4th Mar 1913Box 2 \ B002_X168  00000001-page168
Internal instruction to test double brakes with old torque tubes on a new type axle.2nd Sep 1913Box 2 \ B002_X168  00000001-page169
Suggested new pivot for the 10 HP 2 cylinder cars, addressing failures of the old design.4th Sep 1913Box 2 \ B002_X168  00000001-page170
Drawing for a suggested new front axle pivot for 10 HP 2 cylinder cars.4th Sep 1913Box 2 \ B002_X168  00000001-page171
Potential modifications and improvements to the front axle pivot for 10 HP cars.10th Sep 1913Box 2 \ B002_X168  00000001-page172
The delegation of a matter to Mr. Day and the return of Mr. Chandler's drawings.10th Sep 1913Box 2 \ B002_X168  00000001-page173
Instructions regarding the front axles for 10 HP cars.10th Sep 1913Box 2 \ B002_X168  00000001-page174
Front axles for 10 HP cars.15th Sep 1913Box 2 \ B002_X168  00000001-page175
The front axle pivot for 10 HP cars, with proposed modifications to the wheel and steering pivot inclinations.20th Sep 1913Box 2 \ B002_X168  00000001-page176
Typed memo requesting an improved drawing for a tubular axle.23th Sep 1913Box 2 \ B002_X168  00000001-page177
Axle Pivot for the 10 HP Car X.714, attaching a related memo and returning blueprints.23th Sep 1913Box 2 \ B002_X168  00000001-page178
Front Axle Pivot for 10 HP Cars, attaching a reply and returning blueprint No.132.24th Sep 1913Box 2 \ B002_X168  00000001-page179
Instructions regarding axle pivots, tracks and axle tubes for 10HP cars.28th Feb 1913Box 2 \ B002_X168  00000001-page180
Discrepancies in axle track dimensions and axle tubes for the 10 HP Cars.24th Sep 1913Box 2 \ B002_X168  00000001-page181
Confirmation of telephone messages discussing changes to steering pivots, layout, and stub axles.25th Sep 1913Box 2 \ B002_X168  00000001-page182
Improved design for axle pivots for 10 HP cars.11th Oct 1913Box 2 \ B002_X168  00000001-page183
Instruction sheet regarding engine misfiring, oil issues, and magneto timing.24th Apr 1913Box 2 \ B002_X168  00000001-page184
Instruction sheet for the completion and fitting of a steel turning pivot and a lighter pendulum lever to an axle for a test.7th Nov 1913Box 2 \ B002_X168  00000001-page185
The failure of a pendulum lever during testing and updates on experimental steering pivots and a plain thrust bearing.1st Dec 1913Box 2 \ B002_X168  00000001-page186
Failure of stub axles during a frame bumping test and proposing urgent design improvements.1st Dec 1913Box 2 \ B002_X168  00000001-page187
Various component tests including pivots, axles, wheels, and brakes.10th Dec 1913Box 2 \ B002_X168  00000001-page188
The machining of pivots, discussing drawing alterations and production priority.10th Dec 1913Box 2 \ B002_X168  00000001-page189
Appropriate heat treatment for steering pivots.4th Dec 1913Box 2 \ B002_X168  00000001-page190
The failure of steering pivots during bumping tests.5th Dec 1913Box 2 \ B002_X168  00000001-page191
The testing of two pivots on a reversal test rig, detailing failures and recommending design changes to the stub axle.5th Dec 1913Box 2 \ B002_X168  00000001-page192
In reply to Mr Royce regarding axle pivots that broke during bumping tests and the subsequent modifications made.5th Dec 1913Box 2 \ B002_X168  00000001-page193
Extract from Mr. Paterson's report about finding water in pivots.9th Dec 1913Box 2 \ B002_X168  00000001-page194
Standardization of steering pivots despite reports of weakness.9th Dec 1913Box 2 \ B002_X168  00000001-page195
Serious issue where pivots for the 27/2800 series were produced without a required strengthening modification.20th Aug 1913Box 2 \ B002_X168  00000001-page196
Ongoing tests on wide springs, steering pivots, and front springs with solid eyes.18th Dec 1913Box 2 \ B002_X168  00000001-page197
Investigating the history and standardization of steering pivots.10th Dec 1913Box 2 \ B002_X168  00000001-page198
Instructions for an experiment, part designs, and the strength of pivots.16th Dec 1913Box 2 \ B002_X168  00000001-page199
Instructions for modifications to steering pivots following a test, including hole sizes and corner radius.11th Dec 1913Box 2 \ B002_X168  00000001-page200
The reversal test of steering pivot F3763.11th Dec 1913Box 2 \ B002_X168  00000001-page201
Test log detailing component run times and a noted failure of a ball and stud.12th Dec 1913Box 2 \ B002_X168  00000001-page202
Explanation for why lower caps, meant to be filled with oil, were found full of water.12th Dec 1913Box 2 \ B002_X168  00000001-page203
Cause of water ingress into the front steering pivots.13th Dec 1913Box 2 \ B002_X168  00000001-page204
Drawing Office report on pivots and a reminder about missing signatures for wire wheel standardisation.13th Dec 1913Box 2 \ B002_X168  00000001-page205
Correct heat treatment process for steering pivots.13th Dec 1913Box 2 \ B002_X168  00000001-page206
On the reversal test of steering pivots, noting the failure of P3687 and the success of P3783.15th Dec 1913Box 2 \ B002_X168  00000001-page207
Water ingress into steering pivots and potential modifications.15th Dec 1913Box 2 \ B002_X168  00000001-page208
Experiments on chassis 1413 for rear axle control and endurance testing of steering pivots.18th Dec 1913Box 2 \ B002_X168  00000001-page209
Potential scrapping of pivots and the authorization to change the standard design.18th Dec 1913Box 2 \ B002_X168  00000001-page210
Results of heat treatment tests on frames and pivots, and future design improvements for forgings.2nd Jan 1914Box 2 \ B002_X168  00000001-page211
Returning a report and forwarding remarks regarding water entering the lower caps of pivots.18th Dec 1913Box 2 \ B002_X168  00000001-page212
Water ingress into the steering pivots and a potential solution.18th Dec 1913Box 2 \ B002_X168  00000001-page213
Inquiring about design alterations to prevent a recurring issue, referencing a previous memo.23th Dec 1913Box 2 \ B002_X168  00000001-page214
Query regarding potential alterations to an existing design to prevent a recurring issue.23th Dec 1913Box 2 \ B002_X168  00000001-page215
Potential solutions for water ingress into the front pivots.31th Dec 1913Box 2 \ B002_X168  00000001-page216
Comparative strength of axle pivots, referencing Mr. Royce's concerns and citing test data.7th Jan 1914Box 2 \ B002_X168  00000001-page217
Results of pivot and frame bumping tests.7th Jan 1914Box 2 \ B002_X168  00000001-page218
Comparative strength and fatigue testing of different front pivot and wheel stub designs.7th Jan 1914Box 2 \ B002_X168  00000001-page219
Continued report on pivot durability tests, comparing different models and noting contradictory results potentially related to heat treatment.7th Jan 1914Box 2 \ B002_X168  00000001-page220
Issues and potential improvements for steering pivots.7th Jan 1914Box 2 \ B002_X168  00000001-page221
Distributing correspondence about an experiment on water getting into front pivots.13th Jan 1914Box 2 \ B002_X168  00000001-page222
Instruction sheet regarding work on a Tourer's front pivots.17th Jan 1914Box 2 \ B002_X168  00000001-page223
Condition and potential re-heat treatment of front pivots.14th Jan 1914Box 2 \ B002_X168  00000001-page224
Water getting into the front pivot, attaching an instruction sheet.15th Jan 1914Box 2 \ B002_X168  00000001-page225
Three tests to investigate water ingress into a pivot pin bearing.16th Jan 1914Box 2 \ B002_X168  00000001-page226
Page 3 of a memo discussing a modification to a bearing, bush, and axle boss in a steering assembly.16th Jan 1914Box 2 \ B002_X168  00000001-page227
Road and bumping tests of rear axle bevel gears, steering pivots, and a front axle.17th Jan 1914Box 2 \ B002_X168  00000001-page228
Experiment into water getting into the front pivots of chassis 2495.17th Jan 1914Box 2 \ B002_X168  00000001-page229
The bumping test of pivots, detailing their performance and a subsequent modification to the bore.21th Jan 1914Box 2 \ B002_X168  00000001-page230
Bumping test of pivots, detailing failures and a subsequent reduction in bore size.28th Jan 1914Box 2 \ B002_X168  00000001-page231
Heat treatment temperatures for Front Pivots.28th Jan 1914Box 2 \ B002_X168  00000001-page232
Water ingress into front pivots.2nd Mar 1914Box 2 \ B002_X168  00000001-page233
The failure of a steering pivot during a bumping test, with suggestions for improvements.2nd Feb 1914Box 2 \ B002_X168  00000001-page234
Design of new tools to improve the boring of the stub axle for Steering Pivot P.3783.3rd Feb 1914Box 2 \ B002_X168  00000001-page235
Failure of an axle pivot in a bumping test and the subsequent design improvements made.7th Feb 1914Box 2 \ B002_X168  00000001-page236


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