| Description | Date | Identifier | |
| Analysis of Lancia Lambda leaf springs and a discussion on anti-rolling devices. | 28th Aug 1926 | Box 178 \ 1 img191 | |
| The principles of hydraulic anti-rolling devices and unconventional suspension systems. | 28th Aug 1926 | Box 178 \ 1 img192 | |
| Diagram with a description of a Lancia-type suspension system. | 28th Aug 1926 | Box 178 \ 1 img193 | |
| Comparison of Lancia Lambda and Garson coil spring suspension systems, with a blueprint of the Garson system. | 28th Aug 1926 | Box 178 \ 1 img194 | |
| Page discussing the principles and advantages of air springing for rear wheel suspension, with a comparative graph. | 28th Aug 1926 | Box 178 \ 1 img195 | |
| The advantages and disadvantages of an air spring suspension system, including a blueprint diagram. | 28th Aug 1926 | Box 178 \ 1 img196 | |
| Blueprint drawings and specifications for front and rear leaf spring suspension systems. | 28th Aug 1926 | Box 178 \ 1 img197 | |
| Comparison of spring deflections, periodicities, tyre pressures, and shock damper settings for the 20 HP and 40/50 HP models. | 28th Aug 1926 | Box 178 \ 1 img198 | |
| Front spring design and a table of riding complaints with their probable causes. | 28th Aug 1926 | Box 178 \ 1 img199 | |
| Troubleshooting guide table for vehicle complaints, detailing potential causes related to front and rear suspension. | 28th Aug 1926 | Box 178 \ 1 img200 | |
| Diagrams and specifications for front and rear road springs for 20 HP and 40/50 HP models under 'Other Continental Conditions'. | 28th Aug 1926 | Box 178 \ 1 img201 | |
| Specification drawing for 20 HP and 40/50 HP front and rear road springs for various export markets. | 28th Aug 1926 | Box 178 \ 1 img202 | |
| Springing chart for 40/50 HP cars prior to F.W.B., relating rear spring poundage to total vehicle weight. | 28th Aug 1926 | Box 178 \ 1 img203 | |
| Chart and instructions for determining front spring poundage based on total car weight. | 28th Aug 1926 | Box 178 \ 1 img204 | |
| Graph of front and rear spring poundages against the maximum total weight of the car for the New Phantom model. | 6th Oct 1937 | Box 178 \ 1 img205 | |
| Chart and instructions for determining vehicle spring poundage based on total weight for Australian chassis. | 6th Oct 1937 | Box 178 \ 1 img206 | |
| Fundamentals of car performance, detailing suspension issues and the concept of 'pitching' in the 40/50 HP model. | 20th Dec 1927 | Box 178 \ 1 img207 | |
| Comparative analysis of the Lancia and 20 HP car designs, focusing on suspension and weight distribution to minimize pitching. | 12th Dec 1927 | Box 178 \ 1 img208 | |
| Vehicle pitching, wheelbase, and methods for improving ride quality through weight distribution. | 20th Dec 1927 | Box 178 \ 1 img209 | |
| Notes on suspension testing, body design trends, and addressing vehicle pitching issues. | 20th Dec 1927 | Box 178 \ 1 img210 | |
| The fundamentals of car performance, specifically regarding acceleration and the effects of axle and compression ratios. | 19th Nov 1926 | Box 178 \ 1 img211 | |
| Two graphs illustrating acceleration performance data for a 20 HP engine with different compression ratios and cut-out configurations. | 19th Nov 1926 | Box 178 \ 1 img212 | |
| Two graphs comparing the acceleration performance of various vehicle configurations. | 19th Nov 1926 | Box 178 \ 1 img213 | |
| Two acceleration graphs comparing different open touring cars and compression ratios. | 2nd May 1924 | Box 178 \ 1 img214 | |
| Amendment concerning the fitting of low-pressure tyres and the necessity of hydraulic shock dampers on 20 HP and 40/50 HP chassis. | 2nd May 1924 | Box 178 \ 1 img215 | |
| Investigation into various troubles and failures experienced with the 20 HP starter motor. | 24th Jun 1927 | Box 178 \ 1 img216 | |
| Analysis of cork clutch and starter pinion engagement failures and their resolution. | 24th Jun 1927 | Box 178 \ 1 img217 | |
| Investigation into starter unit slipping, with improvements made by adjusting spring loads and modifying a bush to prevent clutch oil contamination. | 24th Jun 1927 | Box 178 \ 1 img218 | |
| Cover note regarding an attached memo from Olley on Spark Plugs. | 4th Jun 1940 | Box 178 \ 2 img001 | |
| Spark plug development for aircraft engines, including types, sizes, and manufacturer feedback. | 17th May 1940 | Box 178 \ 2 img002 | |
| Cover note for Olley Serial No. 95, regarding a note on hydraulic controls and pumps. | 24th May 1940 | Box 178 \ 2 img003 | |
| The development and application of the Davis Steering Gear and Oil Pump. | 24th Apr 1940 | Box 178 \ 2 img004 | |
| Developments in aircraft fuel feed systems, hydraulic controls, accumulators, and steering. | 24th Apr 1940 | Box 178 \ 2 img005 | |
| Report discussing the trial of oil-motors for pre-rotating aircraft wheels and notes on hydraulic control and steering systems. | 1st Jan 1940 | Box 178 \ 2 img006 | |
| Blueprint diagram of a Glycerine-Ast Pressure Oil Accumulator. | 1st Jan 1940 | Box 178 \ 2 img007 | |
| Comparison sketch of original and present 'Buckingham Rack' profiles with a related gear mechanism. | 23th Apr 1940 | Box 178 \ 2 img008 | |
| Design sketch for a Davis Buckingham Oil Pump, focusing on eliminating cavitation. | 23th Apr 1940 | Box 178 \ 2 img009 | |
| Forwarding information from Olley regarding reduction gears. | 9th Apr 1940 | Box 178 \ 2 img010 | |
| Blueprint chart of gear reduction ratios for plain and compound planet gears. | 25th Apr 1940 | Box 178 \ 2 img011 | |
| Findings from the 'Dynamic Fatigue Life of Rubber' paper from U.S. Rubber. | 25th Apr 1940 | Box 178 \ 2 img012 | |
| Using rubber for mountings on cars to reduce road noise and vibration. | 25th Apr 1940 | Box 178 \ 2 img013 | |
| Scientific paper on the dynamic fatigue life of rubber, detailing testing methods and characteristics. | 15th Jan 1940 | Box 178 \ 2 img014 | |
| Page from a journal discussing dynamic fatigue tests on rubber samples, including equations and diagrams. | 1st Jan 1920 | Box 178 \ 2 img015 | |
| Analytical report on the dynamic fatigue life curves for a 50 durometer rubber stock. | 15th Jan 1940 | Box 178 \ 2 img016 | |
| Journal page discussing the dynamic fatigue life of rubber, including testing machinery and graphical data. | 15th Jan 1940 | Box 178 \ 2 img017 | |
| Analytical study on the dynamic fatigue life of rubber under various temperature, shear, and strain conditions. | 15th Jan 1940 | Box 178 \ 2 img018 | |
| Steering gear manufacturing, specifically the relationship between Gemmer and Adamant regarding the Marles gear. | 24th Apr 1940 | Box 178 \ 2 img019 | |
| Steering gear technologies, competitor practices, and component specifications. | 24th Apr 1940 | Box 178 \ 2 img020 | |
| Steering gear components, manufacturing processes, and comparisons between different designs. | 24th Apr 1940 | Box 178 \ 2 img021 | |
| Report from a visit to General Motors discussing Studebaker tappets, Vauxhall experimental car sound tests, and American methods for reducing road noise. | 13th Apr 1940 | Box 178 \ 2 img022 | |
| Technical memorandum discussing suspension types, engine bore wear, lubrication, and piston/liner issues in various competitor vehicles. | 13th Apr 1940 | Box 178 \ 2 img023 | |
| Tractor manufacturers, fuel consumption, and ignition system improvements. | 13th Apr 1940 | Box 178 \ 2 img024 | |
| Car radio and aerial options from Delco, including pricing and a comparison to British and German radios. | 13th Apr 1940 | Box 178 \ 2 img025 | |
| Car radio technology, including comparisons, aerials, housing, and power systems. | 13th Apr 1940 | Box 178 \ 2 img026 | |
| Delco radio sets, including continental types and future plans for military versions. | 13th Apr 1940 | Box 178 \ 2 img027 | |
| Letter to General Motors outlining five advantages of American car radios over British models. | 29th May 1940 | Box 178 \ 2 img028 | |
| Letter page suggesting an aerial installation trial and commenting on various components like steering gear, oil pumps, and hydraulic controls. | 23th May 1940 | Box 178 \ 2 img029 | |
| Note discussing a letter from Clay regarding Stromberg injection carburettors and safety fuels for post-war engines. | 11th Aug 1940 | Box 178 \ 2 img030 | |
| Describing the Ljungstrom direct gasoline injection system for aviation engines. | 14th Feb 1940 | Box 178 \ 2 img031 | |
| Description of the air control valve, injection nozzles, pipe connections, and injector equipment related to Drawing No. 2-01-26. | 14th Feb 1940 | Box 178 \ 2 img032 | |
| Analysis of a De Dion rear axle and future experimental design work. | 5th Apr 1940 | Box 178 \ 2 img033 | |
| Observations on car work at G.M. and referencing production efficiency ideas from an aircraft article. | 7th Mar 1940 | Box 178 \ 2 img034 | |
| Methods for producing automobile bodies in small quantities, referencing aircraft industry practices and sheet metal supplies. | 7th Mar 1940 | Box 178 \ 2 img035 | |
| Report comparing British and American sheet metal mill tolerances, practices, and resulting impacts on cost and weight. | 7th Mar 1940 | Box 178 \ 2 img036 | |
| 'loft layout' drawing principle and Cadillac's use of large monster drawing boards. | 7th Mar 1940 | Box 178 \ 2 img037 | |
| Technical memorandum discussing the causes and potential solutions for engine bore wear. | 4th Apr 1940 | Box 178 \ 2 img038 | |
| American automotive practices concerning propeller shafts, timing gears, spark plugs, and steering. | 4th Apr 1940 | Box 178 \ 2 img039 | |
| Materials for leaf spring interleaving, their properties, and methods for testing. | 4th Apr 1940 | Box 178 \ 2 img040 | |
| Test methods, wear, and noise issues related to leaf springs. | 30th Mar 1940 | Box 178 \ 2 img041 | |
| General memo discussing various projects including tractor inquiries, Zeiss equipment, Ford England, and Rotol manufacturing. | 30th Mar 1940 | Box 178 \ 2 img042 | |
| Progress report on various automotive components including springs, crankshafts, valve springs, and gearshifts. | 30th Mar 1940 | Box 178 \ 2 img043 | |
| Report page discussing road noise, wishbone joints, spark plugs, and bore wear. | 30th Mar 1940 | Box 178 \ 2 img044 | |
| Technical discussion on Tocco hardening, spark plugs, safety fuel, and engine varnish. | 30th Mar 1940 | Box 178 \ 2 img045 | |
| Report discussing varnish formation on bearings, oil refining improvements, bore finish, and aircraft diesel engine technology. | 30th Mar 1940 | Box 178 \ 2 img046 | |
| Letter discussing the development of the Aspin valve and the Bessler turbo-supercharger. | 30th Mar 1940 | Box 178 \ 2 img047 | |
| Gear design, referencing Almen's 1937 paper on transmission gears and subsequent developments. | 12th Mar 1940 | Box 178 \ 2 img048 | |
| Epicyclic gear information, charts, ratios, and special applications. | 12th Oct 1940 | Box 178 \ 2 img049 | |
| Discussion with Packard on engine design ideas, including injection engines and bore/stroke ratios. | 26th Mar 1940 | Box 178 \ 2 img050 | |
| Big end bearings, fatigue tests, and automatic car transmissions. | 26th Mar 1940 | Box 178 \ 2 img051 | |
| Technical comparison and design breakdown of a Cotal magnetic clutch versus fluid clutches, with details on its construction. | 26th Mar 1940 | Box 178 \ 2 img052 | |
| Automatic transmission systems, discussing overgear, creeping, and comparing competitor technologies. | 26th Mar 1940 | Box 178 \ 2 img053 | |
| Manufacturing suggestions for supercharger rotors and other parts. | 26th Mar 1940 | Box 178 \ 2 img054 | |
| Summary of a meeting discussing developments in rubber technology, its properties, and applications. | 25th Mar 1940 | Box 178 \ 2 img055 | |
| Paper by Sidney M. Cadwell titled 'Rubber of Tomorrow' discussing the testing and fatigue properties of new rubber materials. | 25th Mar 1940 | Box 178 \ 2 img056 | |
| The fatigue testing of rubber under various conditions of strain, oscillation, compression and extension. | 25th Mar 1940 | Box 178 \ 2 img057 | |
| The properties and applications of synthetic rubbers and rubber sponge. | 25th Mar 1940 | Box 178 \ 2 img058 | |
| The properties and applications of sponge and cellular rubber, including potential uses in safety equipment and insulation. | 25th Mar 1940 | Box 178 \ 2 img059 | |
| Technical document detailing the properties and applications of cellular rubber, including insulation and bonding to metal. | 25th Mar 1940 | Box 178 \ 2 img060 | |
| The progress of pneumatic tyre design, focusing on the use of rayon and synthetic materials. | 6th Mar 1940 | Box 178 \ 2 img061 | |
| Graph showing the results of fatigue tests on rubber, plotting life cycles against percentage extension and compression. | 6th Mar 1940 | Box 178 \ 2 img062 | |
| Optimal temperatures and procedures for stress releasing valve springs after shot blasting. | 22th Mar 1940 | Box 178 \ 2 img063 | |
| Detailed process for manufacturing and treating springs, including specifications for heat treatment, shotblasting, and stress limits. | 22th Mar 1940 | Box 178 \ 2 img064 | |
| Valve spring design, cold-pressing techniques, and testing methodologies. | 22th Mar 1940 | Box 178 \ 2 img065 | |
| Report on American cars, specifically on the material thickness used for petrol tanks. | 12th Mar 1940 | Box 178 \ 2 img066 | |
| Performance characteristics and gear configurations of Wright engines. | 9th Mar 1940 | Box 178 \ 2 img067 | |
| Visit to G.M. Research concerning the development and testing of slipper type connecting rods. | 6th Mar 1940 | Box 178 \ 2 img068 | |
| Technical report on slipper rod and bearing design, materials, and alternatives. | 7th Mar 1940 | Box 178 \ 2 img069 | |
| The development of several radial engines, including Diesel and water-cooled types. | 7th Mar 1940 | Box 178 \ 2 img070 | |
| Arguments for a specific engine design, focusing on fuel injection and gearing. | 7th Mar 1940 | Box 178 \ 2 img071 | |
| Car design observations at G.M. Research and production efficiency ideas from an aircraft industry article. | 7th Mar 1940 | Box 178 \ 2 img072 | |
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