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
Redesign of an accessory distribution board to include an earth terminal.28th Jan 1929West Wittering \ T \ January1929-February1929  Scan078
Problems and potential improvements for various car clocks, including A.T. and Watford models.28th Jan 1929West Wittering \ T \ January1929-February1929  Scan079
Proposed design changes to an SS. Exhaust Manifold, including pipe diameter, material, and construction method.29th Jan 1929West Wittering \ T \ January1929-February1929  Scan080
Design and completion of a press button starter switch, referencing blueprint LeC.2641.29th Jan 1929West Wittering \ T \ January1929-February1929  Scan081
Two small alterations to the throttle governor control system.29th Jan 1929West Wittering \ T \ January1929-February1929  Scan082
Proposed improvements to the lubrication system of the SS front axle control damper.29th Jan 1929West Wittering \ T \ January1929-February1929  Scan083
Adapting a front spring experiment for the rear spring front anchorage, questioning a design difference.29th Jan 1929West Wittering \ T \ January1929-February1929  Scan084
Secret memo regarding an oil leakage issue observed on SS. Camshaft dowel screws and a proposed solution.29th Jan 1929West Wittering \ T \ January1929-February1929  Scan085
Proposal for providing a means of end adjustment for lining up timing gears in the wheelcase.29th Jan 1929West Wittering \ T \ January1929-February1929  Scan086
Secret memorandum including a telegram and a sketch outlining suggestions for a simpler and more practical SS exhaust pipe and silencer design.30th Jan 1929West Wittering \ T \ January1929-February1929  Scan087
Design of a car's exhaust system, including pipe routing, silencer placement, and managing fumes.30th Jan 1929West Wittering \ T \ January1929-February1929  Scan088
With hand-drawn sketches suggesting designs for an exhaust pipe joint.30th Jan 1929West Wittering \ T \ January1929-February1929  Scan089
Insufficient bearing surface on front springs and wear on pendulum lever ball ends.30th Jan 1929West Wittering \ T \ January1929-February1929  Scan090
Suggestions for protecting overflow pipes and problems with soldered joints on petrol and lubrication pipes.30th Jan 1929West Wittering \ T \ January1929-February1929  Scan091
Simplification of the petrol supply and reserve system using the autovac tank and a needle valve.30th Jan 1929West Wittering \ T \ January1929-February1929  Scan092
Use of liners and bushes for main bearings, referencing blueprints LeC. 2655 and 2656.30th Jan 1929West Wittering \ T \ January1929-February1929  Scan093
Secret memo recommending the standardisation of an electrical screenwiper drive, replacing the mechanical version.30th Jan 1929West Wittering \ T \ January1929-February1929  Scan094
Poor condition of Colonel Fell's car and suggesting a more suitable vehicle with better features like four-wheel brakes.30th Jan 1929West Wittering \ T \ January1929-February1929  Scan095
With diagrams discussing design options for an SS exhaust system and flexible engine mounting.30th Jan 1929West Wittering \ T \ January1929-February1929  Scan096
Typed communication discussing design suggestions for a crankchamber.30th Jan 1929West Wittering \ T \ January1929-February1929  Scan097
Design improvements for a sequence starter by rounding the corners.30th Jan 1929West Wittering \ T \ January1929-February1929  Scan098
Proposed silencer for an air pump connection on the carburetter air inlet, referencing blueprint LeC. 2659.31th Jan 1929West Wittering \ T \ January1929-February1929  Scan099
Telegram confirmation approving engine mounting, reduced control height, and further testing of a Klaxon switch.1st Feb 1929West Wittering \ T \ January1929-February1929  Scan100
Investigation into offsetting tappets for right and left-handed engines and its effects on the valve gear.5th Feb 1929West Wittering \ T \ January1929-February1929  Scan101
Standardisation of double wiring and single central contact fittings for accessory distribution boards.5th Feb 1929West Wittering \ T \ January1929-February1929  Scan102
Carburetter design improvements and comparing existing and new schemes.1st Feb 1929West Wittering \ T \ January1929-February1929  Scan103
Improvements to the SS and G.4 induction system heating, and alternatives to fitting a thermostat.1st Feb 1929West Wittering \ T \ January1929-February1929  Scan104
Options for SS engine mounting, including rubber specifications, frame stiffness, and placement.1st Feb 1929West Wittering \ T \ January1929-February1929  Scan105
Subframe design and marketability of an open touring body.1st Feb 1929West Wittering \ T \ January1929-February1929  Scan106
Secret memo listing drawings for an 'SS' valve cover, inlet cam form, and valve gear.2nd Feb 1929West Wittering \ T \ January1929-February1929  Scan107
Issues with oil leaks and fastenings on the SS Valve Rocker Cover, proposing design modifications.7th Feb 1929West Wittering \ T \ January1929-February1929  Scan108
Brake performance issues and an oversight regarding water guards on axles.7th Feb 1929West Wittering \ T \ January1929-February1929  Scan109
Impracticality of Bijur valves and restrictors for central oiling and suggesting an alternative.3rd Feb 1929West Wittering \ T \ January1929-February1929  Scan110
Internal memorandum discussing design alterations for SS valve gear and desaxe tappets.7th Feb 1929West Wittering \ T \ January1929-February1929  Scan111
Suitability of a spring washer versus a sheet metal lock for camshaft bearings.7th Feb 1929West Wittering \ T \ January1929-February1929  Scan112
Secret memo proposing a new design for a vacuum pump oil pipe connection due to issues with the existing tee joint.4th Feb 1929West Wittering \ T \ January1929-February1929  Scan113
The excessive weight and thickness of coachwork doors, proposing an investigation with coachbuilders to find a solution.5th Feb 1929West Wittering \ T \ January1929-February1929  Scan114
Agreed modifications to the subframes of SS and India bodies, including diagrams.2nd May 1929West Wittering \ T \ January1929-February1929  Scan115
Agreements on chassis, subframe, and gearbox modifications, page 2.5th Feb 1929West Wittering \ T \ January1929-February1929  Scan116
Design, supply, and features of a framed instrument panel.5th Feb 1929West Wittering \ T \ January1929-February1929  Scan117
Proposing a chassis engine carburettor design using two butterfly valves in series.5th Feb 1929West Wittering \ T \ January1929-February1929  Scan118
Suggestion to prevent the 'SS' servo plates from seizing.6th Feb 1929West Wittering \ T \ January1929-February1929  Scan119
Improved scheme for the SS Front Shock Damper, specifically regarding ball end lubrication.6th Feb 1929West Wittering \ T \ January1929-February1929  Scan120
Design of a rear wheel carrier and a new single filter for the 16-G.4 model.6th Feb 1929West Wittering \ T \ January1929-February1929  Scan121
Simpler and quieter design for an SS chassis engine valve rocker cover.9th Feb 1929West Wittering \ T \ January1929-February1929  Scan122
Different schemes for valve rocker lubrication.1st Feb 1929West Wittering \ T \ January1929-February1929  Scan123
Road test report and review of car specimen 18-EX after 10,000 miles of use.6th Feb 1929West Wittering \ T \ January1929-February1929  Scan124
Outlining technical updates and suggestions for the 'SS' chassis.6th Feb 1929West Wittering \ T \ January1929-February1929  Scan125
Secret memorandum discussing issues with rear axle oil drain holes being choked with mud and proposing design solutions.7th Feb 1929West Wittering \ T \ January1929-February1929  Scan126
Loss of oil pressure after braking and proposing modifications to the crankcase sump.7th Feb 1929West Wittering \ T \ January1929-February1929  Scan127
Comparison of engine oil suction systems with diagrams for the SS and Phantom chassis.7th Feb 1929West Wittering \ T \ January1929-February1929  Scan128
Report comparing oil pump and strainer designs between SS and Phantom chassis, proposing a new scheme.1st Feb 1929West Wittering \ T \ January1929-February1929  Scan129
Use of sheet metal lock washers for camshaft bearings and substituting soft aluminium washers to prevent oil leaks.1st Feb 1929West Wittering \ T \ January1929-February1929  Scan130
Recommendation for the standardisation of Staybrite steel in the exhaust system for the SS chassis.8th Feb 1929West Wittering \ T \ January1929-February1929  Scan131
Secret memo discussing modifications for SS rear brake camshafts, adapting them to the EAC. 14. scheme.9th Feb 1929West Wittering \ T \ January1929-February1929  Scan132
Different schemes and alternatives for an SS exhaust system design.9th Feb 1929West Wittering \ T \ January1929-February1929  Scan133
Three schemes for improving the lubrication of the SS valve gear.11th Feb 1929West Wittering \ T \ January1929-February1929  Scan134
Modifications to the SS engine oil level indicator to improve its accuracy.1st Feb 1929West Wittering \ T \ January1929-February1929  Scan135
Outlining strategies and suggestions for reducing the thickness of car doors to increase interior seat width.12th Feb 1929West Wittering \ T \ January1929-February1929  Scan136
Secret memorandum proposing a new, simpler, and lighter design for a serrated coupling to replace fabric couplings.15th Feb 1929West Wittering \ T \ January1929-February1929  Scan137
Modification to the float lever ratio to correct the oil indicator reading.12th Feb 1929West Wittering \ T \ January1929-February1929  Scan138
Accuracy of jigging dowel pins for the SS. valve tappet guide location.12th Feb 1929West Wittering \ T \ January1929-February1929  Scan139
Flexibility of trunnion bearings for SS universal joints.12th Feb 1929West Wittering \ T \ January1929-February1929  Scan140
Carburetion and cold-starting tests on an SS chassis.15th Feb 1929West Wittering \ T \ January1929-February1929  Scan141
Comparison between two oil filter designs, LeC. 2667 and LeC. 2668, with a recommendation for the latter.2nd Dec 1929West Wittering \ T \ January1929-February1929  Scan142
Design of an SS instrument board, including gauge samples and dial colour alternatives.12th Feb 1929West Wittering \ T \ January1929-February1929  Scan143
New scheme for servo lubrication and a related lever geometry adjustment.14th Feb 1929West Wittering \ T \ January1929-February1929  Scan144
Suggestions for a reserve petrol supply device within the Autovac tank.14th Feb 1929West Wittering \ T \ January1929-February1929  Scan145
Coordinating Mr. Elliott's visit to Le Canadel, a 10,000-mile test car, and finishing the engine mounting and exhaust.15th Feb 1929West Wittering \ T \ January1929-February1929  Scan146
Effect of braking on oil movement and suggestions for modifying the filter and diaphragms.15th Feb 1929West Wittering \ T \ January1929-February1929  Scan147
Responding to a telegram with suggestions for an SS clutch design, referencing scheme 2831 and bearings from Hoffmann and Skefco.15th Feb 1929West Wittering \ T \ January1929-February1929  Scan148
Design and specifications for a centralised chassis lubrication dashboard pump.15th Feb 1929West Wittering \ T \ January1929-February1929  Scan149
Discussion of pump performance issues and proposed modifications to address imperfect filling.15th Feb 1929West Wittering \ T \ January1929-February1929  Scan150
Design improvements for hydraulic shock dampers, including a diagram of a spring mechanism.15th Feb 1929West Wittering \ T \ January1929-February1929  Scan151
Requesting oil pressure figures for the SS model during a cold start.15th Feb 1929West Wittering \ T \ January1929-February1929  Scan152
Secret memo discussing seven possible design schemes for a left-hand SS engine, focusing on camshaft and component interchangeability.15th Feb 1929West Wittering \ T \ January1929-February1929  Scan153
Various engine design schemes, weighing factors like size, weight, and parts interchangeability.16th Feb 1929West Wittering \ T \ January1929-February1929  Scan154
Secret document detailing a promising four-point 'India IV' engine mounting scheme with a diagram.16th Feb 1929West Wittering \ T \ January1929-February1929  Scan155
Recommending Scheme 6 over Scheme 1 for Left Hand Engines, detailing issues with the latter's design.16th Feb 1929West Wittering \ T \ January1929-February1929  Scan156
Design suggestions for a valve cover, focusing on noise reduction, sealing, and materials.16th Feb 1929West Wittering \ T \ January1929-February1929  Scan157
Approval notes for trunk fixing, petrol tank support, and a large petrol filter on an SS.CHASSIS.22th Feb 1929West Wittering \ T \ January1929-February1929  Scan158
Modifications to SS headlamp brackets for stiffness and commenting on the practicality of stays.18th Feb 1929West Wittering \ T \ January1929-February1929  Scan159
Various designs for spanners to be used on internal hexagon plugs.19th Feb 1929West Wittering \ T \ January1929-February1929  Scan160
Technical memorandum discussing the design of an SS oil filter and strainer in the sump, with suggested improvements.19th Feb 1929West Wittering \ T \ January1929-February1929  Scan161
Design proposals for an oil sump and strainer to manage oil flow back.19th Feb 1929West Wittering \ T \ January1929-February1929  Scan162
Proposed modifications and lubrication for a serrated universal joint and clutch shaft.19th Feb 1929West Wittering \ T \ January1929-February1929  Scan163
Modifications to the design of SS & India spare wheel carriers.19th Feb 1929West Wittering \ T \ January1929-February1929  Scan164
Design and construction of exhaust pipes and silencers, including a sketch.19th Feb 1929West Wittering \ T \ January1929-February1929  Scan165
The painting process for wings on an open touring body, specifically regarding colour matching Rover Brown cellulose paint.19th Feb 1929West Wittering \ T \ January1929-February1929  Scan166
Design, operation, and fixing of a valve in a water circulation system.20th Feb 1929West Wittering \ T \ January1929-February1929  Scan167
Suggested method for supplying oil to a hypoid pinion thrust bearing in a rear axle.20th Feb 1929West Wittering \ T \ January1929-February1929  Scan168
Suggestions for the arrangement of a left-hand SS hand brake compensator.21th Feb 1929West Wittering \ T \ January1929-February1929  Scan169
Revisions to framed instruments, including the K.S. gauge, shutter controls, and a change in frame material.2nd Feb 1929West Wittering \ T \ January1929-February1929  Scan170
Proposal for a new starter motor system using a double reduction gear mechanism.21th Jan 1929West Wittering \ T \ January1929-February1929  Scan171
Diagram of a spring-loaded starter pinion engaging with a flywheel gear.12th Feb 1929West Wittering \ T \ January1929-February1929  Scan172
Modification to a single petrol tank filter.12th Feb 1929West Wittering \ T \ January1929-February1929  Scan173
Design and lubrication of a starter motor dashpot, including motor brushes and teeth engagement.22th Feb 1929West Wittering \ T \ January1929-February1929  Scan174
Starter motor engagement, pinion design, and spring mechanisms.22th Feb 1929West Wittering \ T \ January1929-February1929  Scan175
Three functional checks for a device and urging for improvements to ensure its reliability.22th Feb 1929West Wittering \ T \ January1929-February1929  Scan176
Simplified method for chassis engine mounting using links or a flexible strap.22th Feb 1929West Wittering \ T \ January1929-February1929  Scan177


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