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
Ineffective dampers and tests being carried out on a 20 HP car.7th Jan 1929Box 17 \ 3  Scan351
Blueprint showing a cross-section and mounting plate for an experimental engine test.7th Jan 1929Box 17 \ 3  Scan352
The testing and results of 'SS' engine mountings to reduce vibration.8th Jan 1929Box 17 \ 3  Scan353
The advantages of a rigid frame with a cross member for improved car control.8th Jan 1929Box 17 \ 3  Scan354
Secret memo regarding the steering and body type for vehicle 23-EX.8th Jan 1929Box 17 \ 3  Scan355
Request for a scheme to modify controls on the S.S. steering wheel, as suggested by 'R.' at Le Canadel.16th Jan 1929Box 17 \ 3  Scan356
Design for lowering the controls on the steering column.19th Jan 1929Box 17 \ 3  Scan357
Proposal for altering the controls on top of the steering wheel to reduce their height.22th Jan 1929Box 17 \ 3  Scan358
Outstanding work for the 'SS' Production 10,000 mile car, including items from 'Camacha' and controls.21th Jan 1929Box 17 \ 3  Scan359
Performance of side steering tube ends on SS cars during a 10,000-mile test.22th Jan 1929Box 17 \ 3  Scan360
Lowering steering column controls and standardizing larger steering wheels.23th Jan 1929Box 17 \ 3  Scan361
Wear and failure issues with spring bearings and steering components, comparing SS and Phantom models.30th Jan 1929Box 17 \ 3  Scan362
Suggestions for protecting overflow pipes and problems with soldered joints on petrol and lubrication pipes.25th Jan 1929Box 17 \ 3  Scan363
Wear issues and proposed solutions for side steering tube ends, scheme 2301.1st Mar 1929Box 17 \ 3  Scan364
Assembly and standardisation instructions for 'SS' type side steering tube ends.3rd Mar 1929Box 17 \ 3  Scan365
Cross-sectional diagram of the S.S. Side Steering Tube Ends, highlighting points for fitting up.7th Jun 1929Box 17 \ 3  Scan366
Cross steering tube ball ends.1st Apr 1929Box 17 \ 3  Scan367
The return of four springs for a special test on Chassis No. 89 - KR.10th Apr 1929Box 17 \ 3  Scan368
Letter discussing a broken shock absorber and requesting steering system experiments on car 22-EX.10th Apr 1929Box 17 \ 3  Scan369
Propeller shaft leaks, shock absorber arrangements, and the K.S. telegage.11th Apr 1929Box 17 \ 3  Scan370
Return of four special side steering tube springs for chassis 89-KR.11th Apr 1929Box 17 \ 3  Scan371
Letter discussing braking linkage efficiency and the supply of new Ferobestos brake linings.19th Apr 1929Box 17 \ 3  Scan372
Continued memorandum discussing brake lining performance, modifications, and steering problems.19th Apr 1929Box 17 \ 3  Scan373
Modifications and testing for steering and suspension components.22th Apr 1929Box 17 \ 3  Scan374
10,000-mile test on the 22-EX car, detailing issues with steering, shock absorbers, slipper drive and the starter motor.22th Apr 1929Box 17 \ 3  Scan375
High load required on the 'SS' steering system and requesting a spring design.23th Apr 1929Box 17 \ 3  Scan376
Schemes for controls on the steering column for the India 4 model, including an option with a Klaxon switch.23th Apr 1929Box 17 \ 3  Scan377
Letter to Mr. Hancock in France discussing steering setup, tyre effects, and a damaged starter motor/flywheel.6th May 1929Box 17 \ 3  Scan378
Letter discussing braking tests and requesting details and feedback on cross steering tube springs.14th May 1929Box 17 \ 3  Scan379
Proposal to change the spring rating for the S.S. chassis steering side tube.14th May 1929Box 17 \ 3  Scan380
Specifications for S.S. side steering tube springs.15th May 1929Box 17 \ 3  Scan381
New springs for 'SS' steering column controls being satisfactory for production and a request to correct lever movement.18th Jun 1929Box 17 \ 3  Scan382
Alterations to the 'SS' steering lock to achieve a 38 degree lock.23th May 1929Box 17 \ 3  Scan383
Strength requirements for S.S. side steering tube springs.15th May 1929Box 17 \ 3  Scan384
Standardisation of the cross steering tube and the two available spring options for different ball end loadings.14th Jun 1929Box 17 \ 3  Scan385
New springs for the 'SS' steering column controls and a request for production corrections.18th Jun 1929Box 17 \ 3  Scan386
Report from Bourges, France, detailing road tests, fuel supply issues with the Autovac, and speedometer discrepancies on car 21EX.23th Jun 1929Box 17 \ 3  Scan387
Vehicle road test detailing issues with steering, engine vibration, and fuel starvation.10th Feb 1930Box 17 \ 3  Scan388
Test drive report complaining about the steering and stability of Chassis 20-EX.10th Feb 1930Box 17 \ 3  Scan389
Steering performance and radiator 'jellying' on a Phantom II Coupé during road tests.1st Apr 1930Box 17 \ 3  Scan390
Test results and recommendations for the Phantom II steering system.12th May 1930Box 17 \ 3  Scan391
Recommendations regarding Phantom II steering complaints, focusing on wheel balance, tyre pressure, and pivot lean.13th May 1930Box 17 \ 3  Scan392
Technical notes on steering tube adjustments, 'toe-in' settings, and shock absorber issues.13th May 1930Box 17 \ 3  Scan393
Poor steering issues related to shock absorbers and tyres, including a diagram for testing cross-steering tube load.13th May 1930Box 17 \ 3  Scan394
Blueprint showing a cross-section of a steering tube with assembly and testing specifications.13th May 1930Box 17 \ 3  Scan395
Seating positions, dimensions, and adjustments for different driver types.29th May 1930Box 17 \ 3  Scan396
Need to improve the design and placement of control levers on the steering wheel.30th Jun 1930Box 17 \ 3  Scan397
The design of steering column controls, comparing the company's rack system to American friction-based systems.8th Jul 1930Box 17 \ 3  Scan398
Proposal to standardise an all-black finish for the 40/50 Chassis steering wheel.14th Jul 1930Box 17 \ 3  Scan399
Proposed controls on the steering column, including the Klaxon switch and control ball height.9th Jul 1930Box 17 \ 3  Scan400
Availability of detail drawings for the Phantom II controls on the steering column.17th Sep 1930Box 17 \ 3  Scan401
Design of steering column controls, comparing them to American versions.8th Jul 1930Box 17 \ 3  Scan402
Standardisation of chassis parts for a steering wheel with an all-black finish.14th Jul 1930Box 17 \ 3  Scan403
Proposed modifications to the controls on the steering column and the klaxon switch.19th Jul 1930Box 17 \ 3  Scan404
Slight alteration to the S.S. Side Steering Tube setting.12th Aug 1929Box 17 \ 3  Scan405
Blueprint detailing the modified S.S. tube setting.12th Aug 1929Box 17 \ 3  Scan406
Blank document page with a 'Print Room' date stamp.12th Aug 1929Box 17 \ 3  Scan407
Graph plotting load in LBS against the relative movement of two ball ends for different tube settings.13th Aug 1929Box 17 \ 3  Scan408
Mostly illegible document with a purple ink stamp from the Print Room in Derby.13th Aug 1929Box 17 \ 3  Scan409
Attaching a clearer print of proposed modifications to the side steering tube adjustment.19th Aug 1929Box 17 \ 3  Scan410
Modification to the setting of spring-loaded joints for the 'SS' Chassis side steering tube.30th Aug 1929Box 17 \ 3  Scan411
Pros and cons of 'C' steering design and proposing experimental modifications for better ergonomics.10th Oct 1930Box 17 \ 3  Scan412
Fitting of lower controls on the steering column for a Phantom II car, chassis 22-EX.13th Oct 1930Box 17 \ 3  Scan413
Proposed new position of the 'C' type steering column and required alterations to the dash and frame brackets.15th Oct 1930Box 17 \ 3  Scan414
Proposed modification to 'C' Steering, suggesting a trial on a car before final approval.15th Oct 1930Box 17 \ 3  Scan415
Arranging to fit a modified 'C' type steering column and improved controls to the same Phantom II car for evaluation.16th Oct 1930Box 17 \ 3  Scan416
Bringing experimental cars with lowered controls and modified steering to London.18th Oct 1930Box 17 \ 3  Scan417
Layout and design principles for the instrument board on 'C' and 'D' type vehicles.27th Oct 1930Box 17 \ 3  Scan418
Requesting remarks on criticisms of the reduced controls on the steering column.7th Nov 1930Box 17 \ 3  Scan419
Criticisms and proposed design changes for the lower controls on the steering column.11th Nov 1930Box 17 \ 3  Scan420
Requesting a steering wheel mock-up, discussing clearance issues with the mixture lever.15th Nov 1930Box 17 \ 3  Scan421
Modification request to improve accessibility of an oil hole on the 40/50 HP Chassis Steering Column Controls.19th Nov 1930Box 17 \ 3  Scan422
Modification and delayed implementation of a revised 'C' steering column.27th Nov 1930Box 17 \ 3  Scan423
Confirming the approval and arrangements for the introduction of the revised 'C' Steering on the N.2. Series.2nd Dec 1930Box 17 \ 3  Scan424
Blueprint showing the results of bumper tests on radiator and engine movement under various conditions.17th May 1930Box 17 \ 4  Scan001
Follow-up memo regarding efforts to improve the appearance of lowered controls.1st Jan 1931Box 17 \ 4  Scan002
Data table for the L.H. Chassis 25-EX steering geometry curve.7th Mar 1931Box 17 \ 4  Scan003
Instructions for a rubber-damped steady for the steering column on a Phantom II chassis for Lord Herbert Scott.9th Apr 1931Box 17 \ 4  Scan004
Clarifying the suitability of a rubber damped steady for various steering types on the Phantom II chassis.21th Apr 1931Box 17 \ 4  Scan005
Standardization of dashboards, steering columns, pedals, and levers for P. 2. L. H. steering models.22th Apr 1931Box 17 \ 4  Scan006
Requesting the trial of a friction device on the Phantom II steering column by altering an existing Phantom I column.30th May 1931Box 17 \ 4  Scan007
Part changes for the Phantom II chassis steering column and box, relating to a new friction device.17th Jun 1931Box 17 \ 4  Scan008
Parts list with an instruction to apply a standard chromium finish.17th Jun 1931Box 17 \ 4  Scan009
Proposal for lowering controls on the steering column, noting potential bakelite moulding difficulties.23th Jul 1931Box 17 \ 4  Scan010
Urgent request for a mock-up of a 'lowered controls' scheme, starting with a small unit for examination.24th Jul 1931Box 17 \ 4  Scan011
Tests carried out to investigate 'joggling' in the steering of Phantom II cars.1st Aug 1931Box 17 \ 4  Scan012
Comparative road tests focusing on steering, suspension, and handling characteristics.31th Aug 1931Box 17 \ 4  Scan013
The effects of damping, steering components, tyres, and shackles on vehicle ride and handling.1st Aug 1931Box 17 \ 4  Scan014
Continued analysis of spring eye movement under various road and braking conditions, and the development of a new flexible shackle.31th Aug 1931Box 17 \ 4  Scan015
Blueprint diagram for a device called a 'Steering Snatchmeter'.31th Aug 1931Box 17 \ 4  Scan016
Mostly blank document page with a purple company date stamp.31th Aug 1931Box 17 \ 4  Scan017
Charts illustrating the maximum movement of a flexible shackle spring eye under various driving and road conditions.31th Aug 1931Box 17 \ 4  Scan018
Preliminary pencil sketch of a mechanical component or assembly.31th Aug 1931Box 17 \ 4  Scan019
Table of results from steering tests using a snatchmeter to record joggling under various conditions.31th Aug 1931Box 17 \ 4  Scan020
Largely illegible document with a purple date stamp in the bottom right corner.31th Aug 1931Box 17 \ 4  Scan021
Cause and potential solution for variations in cross steering tube load.25th Nov 1931Box 17 \ 4  Scan022
Issues and proposed modifications for cross steering tube poundage on Phantom II and 25 HP models.26th Nov 1931Box 17 \ 4  Scan023
Depot sheet about variations in cross steering tube load for the Phantom II and 25 HP models.27th Nov 1931Box 17 \ 4  Scan024
Scheme 3394 for flattened steering column controls and the incorporation of a headlamp dipping switch.23th Dec 1931Box 17 \ 4  Scan025
Design and suitability of a guard ring type steering column control.15th Jan 1932Box 17 \ 4  Scan026


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