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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Small-quantity automobile body production, aircraft industry practices, sheet metal work, and material tolerances.7th Mar 1940Box 178 \ 2  img073
Comparison of American and British sheet metal practices, gauges, and costs for car body construction.7th Mar 1940Box 178 \ 2  img074
Different drafting and design methods, comparing an aluminum sheet method with the Cadillac system.7th Mar 1940Box 178 \ 2  img075
Insulating front suspension from road noise, comparing Packard and Opel Kapitan schemes for the 'Myth' project.5th Mar 1940Box 178 \ 2  img076
Conversation with Mr. Heron regarding engine valve technology, problems, and potential solutions.4th Mar 1940Box 178 \ 2  img077
Hollow-head valves, supercharger designs, and fuel injection systems for aircraft engines.4th Mar 1940Box 178 \ 2  img078
Safety fuels, spark injection, carburetters, octane ratings, and nitriding steels for aero engines.4th Mar 1941Box 178 \ 2  img079
Steel orders, Vulture valve springs, and automatic transmission technologies.4th Mar 1940Box 178 \ 2  img080
Letter from Lemaire Tool & Mfg. Co. regarding direct gasoline injection for aviation engines.28th Feb 1940Box 178 \ 2  img081
Agenda and details for a conference on Plain Bearings, Surface Finish, and Lubrication at M.I.T.7th Feb 1940Box 178 \ 2  img082
Plain bearings and surface finish, detailing industry visits and participants for a conference.7th Feb 1940Box 178 \ 2  img083
Summary of findings on plain bearings and surface finishing techniques.7th Feb 1940Box 178 \ 2  img084
Characteristics and applications of plain bearings and surface finishes.7th Feb 1940Box 178 \ 2  img085
Cover memo forwarding a report from Olley for future discussion.1st Feb 1940Box 178 \ 2  img086
Letter discussing American drop head motor car practices and torsional stiffness comparisons.11th Jan 1940Box 178 \ 2  img087
Page of a report discussing torsional stiffness in car design, comparing various models and addressing vehicle weight.11th Jan 1940Box 178 \ 2  img088
Rationalization of car structure, comparing different construction methods, and the future of frameless and fram-body designs.11th Jan 1940Box 178 \ 2  img089
Technical analysis of car body rumble, floor materials, and frame construction on various models.11th Jan 1940Box 178 \ 2  img090
Report discussing four-link coil spring suspension, Oldsmobile gearboxes, and laminated glass.11th Jan 1940Box 178 \ 2  img091
Letter from Maurice Olley discussing changes to headlamp design and vehicle chassis stiffness.11th Jan 1940Box 178 \ 2  img092
Notes on the design and characteristics of a four-link coil spring rear axle.11th Jan 1940Box 178 \ 2  img093
Coil spring suspension systems, their benefits over leaf springs, and testing requirements.2nd Feb 1940Box 178 \ 2  img094
Blueprint detailing the general construction and geometry of a 4-link coil spring rear axle suspension system.2nd Feb 1940Box 178 \ 2  img095
Diagrams showing understeer line and an improved 4-link coil spring rear axle construction.2nd Feb 1940Box 178 \ 2  img096
Schematic of a 9-cylinder radial engine showing the injector pump, servomotor, and air control valve.2nd Jan 1926Box 178 \ 2  img097
Diagram of the Ljungstrom injection system with components such as the air control valve and fuel pipe.2nd Jan 1926Box 178 \ 2  img098
Cross-section diagrams of a servomotor and an associated mechanism.12th Feb 1940Box 178 \ 2  img099
Cross-section drawing of a Ljungstrom Injector.12th Feb 1940Box 178 \ 2  img100
Cover memo for an attached document from Olley regarding work on crankshaft forgings in America.30th Jan 1940Box 178 \ 2  img101
Letter from Rolls-Royce Inc. Detroit to Rolls-Royce Ltd. Derby regarding crankshaft production, comparing steel types and forging practices.9th Jan 1940Box 178 \ 2  img102
Notes on a visit to the Wyman-Gordon Co. plant in Harvey, Illinois to see the first forging of Merlin crankshafts.5th Jan 1940Box 178 \ 2  img103
Visit to Harvey, Illinois, concerning the forging process and steel quality for Merlin engine cranks.5th Jan 1940Box 178 \ 2  img104
Notes from a visit to Harvey, Illinois, regarding steel forging practices, material analysis, and pricing proposals for aircraft steel.5th Jan 1940Box 178 \ 2  img105
Machining, nitriding, and steel selection for car cranks, including comparisons with American manufacturing practices.5th Jan 1940Box 178 \ 2  img106
Notes on steel types, machinability, hardening processes, and crankshaft manufacturing.5th Jan 1940Box 178 \ 2  img107
Notes from a visit to Harvey, Illinois, discussing steel types for small aero engine cranks.2nd Jan 1936Box 178 \ 2  img108
1935 visit to the USA to investigate chassis issues and research American automobile engineering trends.2nd Jan 1936Box 178 \ 2  img109
Performance comparison against American cars and considerations for future vehicle design, including cornering behaviour and drivetrain layouts.1st Jan 1935Box 178 \ 2  img110
Comparison of chassis construction, noise insulation, and flexible flywheels against American cars like Cadillac, Briggs, and Hudson.2nd Jan 1936Box 178 \ 2  img111
The major problems of the Ph.III chassis, focusing on tyre noise and gearbox clunking.1st Jan 1936Box 178 \ 2  img112
Technical memo discussing American practices for gearboxes, road shocks, and engine mountings.2nd Jan 1935Box 178 \ 2  img113
Observations on engine noise insulation, induction, percolation, and hot-spots.2nd Jan 1935Box 178 \ 2  img114
Engine volumetric efficiencies, carburetter drains, and rubber slipper wheels with comparisons to American manufacturers.2nd Jan 1936Box 178 \ 2  img115
Notes on road shocks, supercharging, and bearing materials.8th Jan 1936Box 178 \ 2  img116
Notes on crankshaft bearings, clutches, frame construction, and competitor costs.3rd Jan 1935Box 178 \ 2  img117
Answering questions on Buick oil coolers, General Motors crankcase ventilation, Hudson timing gears, and GM piston development.2nd Jan 1935Box 178 \ 2  img118
Acquiring 'skid pan' test equipment and sharing experimental results with Cadillac to improve car handling and springing.7th Jan 1936Box 178 \ 2  img119
Weight analysis of Pontiac cars, comparing figures and noting differences in bumper inclusion.16th Apr 1934Box 178 \ 2  img120
Weight analysis of the chassis and running gear components for a 4-door 1934 Pontiac.16th Apr 1934Box 178 \ 2  img121
Weight breakdown of chassis components, sheet metal, and lamps, with a total weight calculation.16th Apr 1934Box 178 \ 2  img122
Detailed weight breakdown of vehicle components, body, equipment, and fluids.4th Apr 1934Box 178 \ 2  img123
Visit to the U.S. automobile industry, discussing riding comfort and independent front wheel suspension systems.4th Apr 1934Box 178 \ 2  img124
Comparison of Chrysler Air-Flow cars with competitors, focusing on weight distribution, design, and coachwork.4th Apr 1934Box 178 \ 2  img125
Comparison of American car manufacturing practices regarding body rigidity, aesthetics, and power unit silence.4th Apr 1934Box 178 \ 2  img126
Engine development, including superchargers, bearings, and American automotive trends.4th Apr 1934Box 178 \ 2  img127
Competitor engine developments, including crankshafts, dampers, and pistons.4th Apr 1934Box 178 \ 2  img128
Comparison of engine design practices, particularly American methods, concerning lubrication, piston rings, materials, and valve clearance.4th Apr 1934Box 178 \ 2  img129
Engine cooling systems, including radiator matrices, fans, and oil coolers, comparing manufacturing options and supplier capabilities.4th Apr 1934Box 178 \ 2  img130
Steering and transmission developments, including steering ratios, clutch design, and gearbox technology.4th Apr 1934Box 178 \ 2  img131
Comparative analysis of hypoid rear axles and various braking systems used by competitors.4th Apr 1934Box 178 \ 2  img132
Dynamos, starter motors, and car weights, with comparisons to American automotive practices.4th Apr 1934Box 178 \ 2  img133
Proposing a weight analysis scheme and comparing car weights against American competitors.4th Apr 1934Box 178 \ 2  img134
Market intelligence report on future development trends in the American automotive industry.4th Apr 1934Box 178 \ 2  img135
Summary and recommendation on future engineering developments, focusing on transmissions and independent front wheel suspension.4th Apr 1934Box 178 \ 2  img136
Engineering document outlining opinions and recommendations for future automotive development and testing.4th Apr 1934Box 178 \ 2  img137
Report analyzing and comparing automotive components and production methods with American competitors.4th Apr 1934Box 178 \ 2  img138
List of specialist part suppliers and the components they provide.4th Apr 1934Box 178 \ 2  img139
Comparison of manufacturing strategies and durability testing standards with American automobile companies.4th Apr 1934Box 178 \ 2  img140
Comparison of American and British car testing facilities, performance philosophies, and potential design considerations.4th Apr 1934Box 178 \ 2  img141
Summary of the features of the new La Salle car, a Cadillac product.4th Apr 1934Box 178 \ 2  img142
Numbered list of vehicle component features and improvements.4th Apr 1934Box 178 \ 2  img143
Road test of a Bentley car in the U.S.A., covering weather, road conditions, and identified faults, particularly with the suspension.4th Apr 1934Box 178 \ 2  img144
Vehicle performance issues concerning frame jellying, lubrication in cold weather, and ground clearance in snow.4th Apr 1934Box 178 \ 2  img145
Vehicle issues including frozen brakes, gear ratios, valve spring failures, and radiator lag.4th Apr 1934Box 178 \ 2  img146
General equipment and carburetion for cars intended for the American market.4th Apr 1934Box 178 \ 2  img147
The performance and characteristics of a Graham Paige centrifugal blower supercharger.4th Apr 1934Box 178 \ 2  img148
Report discussing engine development points including supercharger silence, fuel, cooling, and oil temperatures.4th Apr 1934Box 178 \ 2  img149
Engine components including big end bearings, carburetter with blower, and supercharger construction.4th Apr 1934Box 178 \ 2  img150
Blower efficiency and a summary of a supercharged car, with comparisons to Graham Paige and Duesenberg models.4th Apr 1934Box 178 \ 2  img151
Graph plotting intake manifold pressure and vacuum against engine RPM for supercharged and non-supercharged engines.4th Apr 1934Box 178 \ 2  img152
Performance curve graph comparing the effect of a supercharger on a Graham 8-cylinder engine's power and efficiency.9th Mar 1934Box 178 \ 2  img153
Report from the U.S.A. on a valve spring failure, subsequent engine damage, and cold weather performance.9th Mar 1934Box 178 \ 2  img154
Vehicle comparisons, valve spring failures, Bentley ground clearance issues, and travel plans from Detroit.9th Mar 1934Box 178 \ 2  img155
Report from the U.S.A. discussing the acquisition of a General Motors La Salle car for engineering analysis.3rd Mar 1934Box 178 \ 2  img156
Car comparisons, parts compatibility, solder specifications for radiators, and front-end drives.3rd Mar 1934Box 178 \ 2  img157
The existing state of front-end drives in American cars, comparing gear versus chain systems.3rd Mar 1934Box 178 \ 2  img158
Engine component choices, comparing timing gears and chains, with references to competitor vehicles like Cadillac, Ford, and Lincoln.3rd Mar 1934Box 178 \ 2  img159
Graph of valve lift versus crankshaft degrees, for use on a C.A.C. engine with a hydraulic tappet.1st Jul 1932Box 178 \ 2  img160
Report from the USA on valve spring and radiator failures, with updates on oil cooler and shock absorber development.3rd Mar 1934Box 178 \ 2  img161
Minutes of the Coachwork Sub Committee meeting discussing tool accommodation and luggage grids.23th Feb 1934Box 178 \ 2  img162
Standardization of Saloon and Coupe bodies, including revised dimensions and supplier negotiations.23th Feb 1934Box 178 \ 2  img163
Meeting notes discussing vehicle body modifications, including colour schemes and lowering step irons.23th Feb 1934Box 178 \ 2  img164
The merits of toughened glass over reinforced laminated glass for vehicle windows.26th Feb 1934Box 178 \ 2  img165
Importing a Cadillac, customs duty considerations, and comparison with Bentley and a future 12-cylinder model.26th Feb 1934Box 178 \ 2  img166
Competitor vehicle analysis (Terraplane, Cadillac, Buick) for product improvement.26th Feb 1934Box 178 \ 2  img167
Outlining a US trip itinerary, notes on a Bentley test, and other business matters.26th Feb 1934Box 178 \ 2  img168
Vehicle performance and issues encountered during testing in American winter conditions.27th Jan 1934Box 178 \ 2  img169
Page two of a letter discussing travel plans and where to forward mail.27th Jan 1934Box 178 \ 2  img170
Report from the U.S.A. on issues with a Bentley, including engine boom, brake problems, and commentary on independent suspension.12th Feb 1934Box 178 \ 2  img171
Engine and body noise, resonance, and potential acoustic solutions.12th Feb 1934Box 178 \ 2  img172


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