| Description | Date | Identifier | |
| Blueprint detailing adjustments and poundage requirements for a cross steering tube. | 13th May 1930 | Box 4 \ 3 03-page86 | |
| Specifications for the inclination of steering pivots and wheel 'towing in' for the Phantom II model. | 13th May 1930 | Box 4 \ 3 03-page87 | |
| Balance weights and limits for 7' tyres on 20' rims. | 5th Jun 1930 | Box 4 \ 3 03-page88 | |
| List of customer cars exhibiting excessive toe-in, with vehicle specifications and mileage. | 27th Jun 1930 | Box 4 \ 3 03-page89 | |
| Excessive front tyre wear on Phantom II R.A. cars due to incorrect toe-in settings. | 27th Jun 1930 | Box 4 \ 3 03-page90 | |
| Requesting a replacement bolt and plate for a spare wheel that was lost. | 18th Feb 1930 | Box 4 \ 3 03-page91 | |
| Postcard addressed to the Experimental Department in Derby, England. | 22th Jun 1926 | Box 4 \ 3 03-page92 | |
| Complaints of front wheel 'toeing-in' on the Phantom III model. | 31th Jul 1930 | Box 4 \ 3 03-page93 | |
| Request for a report regarding an attached memo concerning Phantom II's. | 1st Aug 1930 | Box 4 \ 3 03-page94 | |
| Technical drawing of a patented wheel assembly, type N.70 CB, and its hub, type N.70 C. | 10th Oct 1927 | Box 4 \ 4 04-page01 | |
| Assembly and hub diagram for a Type N.80 C patented wheel. | 10th Oct 1927 | Box 4 \ 4 04-page02 | |
| Thank you note regarding the Paris Salon and a request for drawings of R.A.F. wheels. | 10th Oct 1927 | Box 4 \ 4 04-page03 | |
| Article from 'THE AUTOCAR' magazine detailing the history and development of wheels. | 8th Apr 1911 | Box 4 \ 4 04-page04 | |
| Article from 'The Autocar' magazine detailing the history and design of early wheels. | 8th Apr 1911 | Box 4 \ 4 04-page05 | |
| Suggestion to fit cars destined for India with wire or steel wheels instead of wooden ones due to issues with shrinkage in the climate. | 4th Jul 1911 | Box 4 \ 4 04-page06 | |
| Newspaper report about an accident to chassis 956, and a committee decision on the risk of wooden wheels. | 16th Oct 1911 | Box 4 \ 4 04-page07 | |
| Cancelling previous instructions regarding wheels for the Speed Test Car. | 17th Nov 1911 | Box 4 \ 4 04-page08 | |
| Meeting notes discussing a report on the suitability and comparison of wire wheels versus wooden wheels. | 1st Dec 1911 | Box 4 \ 4 04-page09 | |
| Minutes from the 105th meeting regarding the decision to fit larger wheels to Colonial and Indian cars. | 28th Dec 1911 | Box 4 \ 4 04-page10 | |
| Departmental memo regarding the decision on a patent wheel submission from Mr Butler of Dudley. | 5th Jan 1912 | Box 4 \ 4 04-page11 | |
| Relative merits of wooden versus wire wheels based on customer feedback and recent events. | 8th Jan 1912 | Box 4 \ 4 04-page12 | |
| Committee discussion regarding the suitability of different types of wheels for colonial cars. | 8th Jan 1912 | Box 4 \ 4 04-page13 | |
| Comparative merits and demerits of wire wheels versus wooden wheels. | 8th Jan 1912 | Box 4 \ 4 04-page14 | |
| Comparison of the relative merits and drawbacks of wire, wooden, and pressed steel wheels. | 11th Dec 1912 | Box 4 \ 4 04-page15 | |
| Minute regarding the lack of an efficient detachable device for wire wheels, with instructions for its circulation. | 11th Dec 1912 | Box 4 \ 4 04-page16 | |
| Extract from a memo discussing the adoption of detachable wheels. | 23th Jan 1912 | Box 4 \ 4 04-page17 | |
| Instruction from Mr. Royce to fit all worm axle cars with 835 x 135 wheels. | 21th Feb 1912 | Box 4 \ 4 04-page18 | |
| Clarification memo regarding the suitability of wire wheels for high-speed track use versus general road use. | 29th May 1912 | Box 4 \ 4 04-page19 | |
| Article detailing the results of impact tests on wire, wood, and steel-plate wheels. | 1st Jun 1912 | Box 4 \ 4 04-page20 | |
| Article from 'The Autocar' detailing the invention of a springless resilient wheel, intended to make pneumatic tyres unnecessary. | 19th Jul 1912 | Box 4 \ 4 04-page21 | |
| Copy of Mr. Royce's remarks concerning the use of wire road wheels. | 15th Dec 1913 | Box 4 \ 4 04-page22 | |
| Inquiring about the feasibility and cost of fitting wire wheels in place of artillery wheels on cars in India. | 15th Dec 1913 | Box 4 \ 4 04-page23 | |
| Change of wood wheels to wire wheels for cars used in hot climates. | 30th Dec 1913 | Box 4 \ 4 04-page24 | |
| Parts list for the Rear Hub assembly, for wire wheel and double rear brake configurations. | 3rd Dec 1913 | Box 4 \ 4 04-page25 | |
| Proposal from Mr De Salamanca to trial 880 wheels on chassis 7CA. | 9th May 1914 | Box 4 \ 4 04-page26 | |
| Post-war chassis components, focusing on the design and material choice for road wheels. | 3rd Oct 1916 | Box 4 \ 4 04-page27 | |
| Extract discussing Dunlop, Rudge-Whitworth, and Michelin wheel options for the 45/50 HP chassis. | 25th Jun 1917 | Box 4 \ 4 04-page28 | |
| Cancellation of an order for Firestone rims following high-speed test failures and subsequent correspondence. | 25th Jun 1920 | Box 4 \ 4 04-page29 | |
| Comparing wheel rim designs from Firestone, Goodyear, Stanwell, and Dunlop, with user feedback. | 25th Jun 1920 | Box 4 \ 4 04-page30 | |
| Report comparing the safety features and mechanisms of Firestone and Goodyear tyre rims, especially under deflation or high-speed conditions. | 25th Jun 1920 | Box 4 \ 4 04-page31 | |
| Wheel locking devices, comparing different manufacturers and proposing alternative designs. | 25th Jun 1920 | Box 4 \ 4 04-page32 | |
| The merits of Firestone rims and potential modifications for wire wheels. | 25th Jun 1920 | Box 4 \ 4 04-page33 | |
| Letter from Morand Cushion Wheel Co. proposing their cushion wheel products. | 18th Oct 1921 | Box 4 \ 4 04-page34 | |
| Advertisement leaflet for Morand Cushion Wheels and Demountable tires for trucks. | 18th Oct 1921 | Box 4 \ 4 04-page35 | |
| Advertisement for Morand Demountable Cushion Elements for motor trucks, advocating a return to solid tires. | 4th Feb 1918 | Box 4 \ 4 04-page36 | |
| Advertisement for Morand Wheels featuring a testimonial letter from the John J. Dunn coal company. | 4th Feb 1918 | Box 4 \ 4 04-page37 | |
| Promotional leaflet for Morand Cushion Wheels for motor trucks, including a customer testimonial letter from Consumers Company. | 11th Oct 1920 | Box 4 \ 4 04-page38 | |
| Pre-printed request form for literature on the Morand Cushion Wheel. | 11th Oct 1920 | Box 4 \ 4 04-page40 | |
| Calculations on the effect of new inner tubes on car and wheel weight, and kinetic energy. | 1st Dec 1923 | Box 4 \ 4 04-page41 | |
| Note received from Conduit Street, querying the availability of a set of wheels in the disposal stores. | 1st Dec 1923 | Box 4 \ 4 04-page42 | |
| Instruction for the despatch of three E.5 type wire wheels to the Dunlop Rim & Wheel Co. for a two-coat enamelling process. | 10th Mar 1925 | Box 4 \ 4 04-page43 | |
| Sourcing of R.A.F. type wheels from French manufacturers. | 15th Oct 1927 | Box 4 \ 4 04-page44 | |
| Letter from Dunlop Rubber Co. Ltd. concerning an advertisement for Wheels Incorporated of New York and a Diablo type rubber buffer. | 23th Dec 1927 | Box 4 \ 4 04-page45 | |
| Technical note on curing engine magneto rattles using different spring settings and materials. | 15th Apr 1911 | Box 4 \ 5 05-page001 | |
| Investigation into a rattle from the crankshaft, its relation to the magneto drive, and the effect of oil pressure. | 21th Jul 1911 | Box 4 \ 5 05-page002 | |
| Alteration of the magneto wire arrangement to allow easier access to the valve cap. | 27th Sep 1911 | Box 4 \ 5 05-page003 | |
| Report or index card concerning magneto advance. | 24th Oct 1911 | Box 4 \ 5 05-page004 | |
| Tests and problems with Bosch magnetos, detailing ignition advance. | 2nd Aug 1911 | Box 4 \ 5 05-page005 | |
| Meeting minutes discussing the Magneto Advance Lever and the arrangement of the Magneto Drive Pinion. | 14th Nov 1911 | Box 4 \ 5 05-page006 | |
| Meeting minutes from November and December 1911 regarding modifications and arrangements for magnetos on marine engines. | 1st Dec 1911 | Box 4 \ 5 05-page007 | |
| Meeting minutes discussing the design and arrangement of a magneto drive pinion for a marine engine. | 24th Nov 1911 | Box 4 \ 5 05-page008 | |
| Minutes of a meeting discussing a magneto brake lever for a worm drive. | 5th Dec 1911 | Box 4 \ 5 05-page009 | |
| Minutes from meetings discussing magneto drive pinion arrangement and a broken magneto drive on chassis 1130. | 13th Dec 1911 | Box 4 \ 5 05-page010 | |
| Meeting notes discussing the cause and potential solutions for a magneto rattle at low speeds. | 14th Dec 1911 | Box 4 \ 5 05-page011 | |
| Magneto distributor and gear arrangements. | 18th Dec 1911 | Box 4 \ 5 05-page012 | |
| Meeting notes discussing an alternative gear design for magnetos and a magneto drive pinion for a marine engine. | 18th Dec 1911 | Box 4 \ 5 05-page013 | |
| Committee meeting minutes discussing magneto component failures, investigations, and resolutions. | 18th Dec 1911 | Box 4 \ 5 05-page014 | |
| Committee discussion on two proposed schemes to eliminate magneto gear rattles. | 20th Dec 1911 | Box 4 \ 5 05-page015 | |
| Minutes from the 99th T.C. meeting regarding magneto rattles at low speeds. | 20th Dec 1911 | Box 4 \ 5 05-page016 | |
| Meeting notes discussing modifications to the distributor gearing, mentioning Sheffield Simplex and Bosch. | 13th Sep 1923 | Box 4 \ 5 05-page017 | |
| Meeting minutes discussing a spring-connected gear design and relations with the Bosch Co. | 13th Sep 1923 | Box 4 \ 5 05-page018 | |
| Meeting minutes discussing issues with magneto rattles and the design of a spring-controlled gear wheel. | 27th Dec 1911 | Box 4 \ 5 05-page019 | |
| The unsatisfactory performance of a CAV Type Magneto due to noisy gears. | 19th Apr 1912 | Box 4 \ 5 05-page020 | |
| Excessive wear on the rear magneto universal joint due to dirt ingress, proposing a cover as a solution. | 15th Jul 1912 | Box 4 \ 5 05-page021 | |
| Departmental memo discussing excessive slack and rattles in the keywayed telescopic joint of a new magneto drive. | 16th Jul 1912 | Box 4 \ 5 05-page022 | |
| Departmental memo regarding insufficient clearance between a universal joint and exhaust down pipes. | 3rd Mar 1920 | Box 4 \ 5 05-page023 | |
| Trouble with the magneto universal joint and a request to devise a protective cover. | 25th Jul 1912 | Box 4 \ 5 05-page024 | |
| Departmental memo requesting magneto timing settings for a standard engine to compare with a marine engine. | 29th Jul 1912 | Box 4 \ 5 05-page025 | |
| To Mr. Royce regarding the standard practice for setting the magneto. | 13th Aug 1913 | Box 4 \ 5 05-page026 | |
| Departmental memo discussing issues with fibre bushes in road springs and magnetos, particularly in India. | 2nd Sep 1912 | Box 4 \ 5 05-page027 | |
| Standing orders for repair shops and the proposal to contact Bosch Co. regarding magneto trouble. | 2nd Sep 1912 | Box 4 \ 5 05-page028 | |
| Query regarding a sticking issue with the make and break mechanism in magnetos, potentially caused by the use of fibre. | 2nd Sep 1912 | Box 4 \ 5 05-page029 | |
| Departmental memo regarding the dispatch of parts for chassis number 1737. | 4th Sep 1912 | Box 4 \ 5 05-page030 | |
| Departmental memo discussing the use and performance of fibre bushes in magnetos, particularly regarding clearance issues. | 10th Sep 1912 | Box 4 \ 5 05-page031 | |
| Guide explaining the workings of a magneto. | 2nd Nov 1912 | Box 4 \ 5 05-page032 | |
| Article from 'The AUTOCAR' explaining the workings of a magneto for beginners, presented as a dialogue. | 2nd Nov 1912 | Box 4 \ 5 05-page033 | |
| Article from 'THE AUTOCAR' magazine explaining the workings of a magneto with diagrams. | 2nd Nov 1912 | Box 4 \ 5 05-page034 | |
| Technical article explaining the function, maintenance, firing order, and timing of a magneto. | 2nd Nov 1912 | Box 4 \ 5 05-page035 | |
| Illustrated article from a magazine detailing the components and workings of a magneto's contact breaker. | 2nd Nov 1912 | Box 4 \ 5 05-page036 | |
| Guide on the maintenance, troubleshooting, and adjustment of a magneto's contact breaker. | 20th Feb 1912 | Box 4 \ 5 05-page037 | |
| Magazine article explaining the function and adjustment of a magneto's contact breaker. | 2nd Nov 1912 | Box 4 \ 5 05-page038 | |
| Newspaper clipping from 'The Autocar' discussing magneto operation and the 8 HP Globe Runabout vehicle. | 2nd Nov 1912 | Box 4 \ 5 05-page039 | |
| Article explaining the workings of a magneto for beginners. | 9th Nov 1912 | Box 4 \ 5 05-page040 | |
| Article from 'The Autocar' magazine explaining the operation of magnetos, with illustrations of Simms, Eisemann, and Bosch models. | 9th Nov 1912 | Box 4 \ 5 05-page041 | |
| Diagrams illustrating the four firing positions of a four-cylinder magneto. | 9th Nov 1912 | Box 4 \ 5 05-page042 | |
| Article explaining the operation of a magneto, including fault-finding and procedures for removal and re-fitting. | 9th Nov 1912 | Box 4 \ 5 05-page043 | |
| Article from 'The Autocar' magazine explaining how to time and set up magnetos for an engine. | 9th Nov 1912 | Box 4 \ 5 05-page044 | |
| Article from 'The Autocar' magazine discussing the maintenance, troubleshooting, and testing of a magneto. | 9th Nov 1912 | Box 4 \ 5 05-page045 | |
| Article by A.E. Bennett discussing the development and performance of magneto ignition systems, with diagrams and test results. | 21th Feb 1914 | Box 4 \ 5 05-page046 | |
| Experiment with a contact breaker arm fitted with a fibre bush and fibre rollers. | 15th Aug 1914 | Box 4 \ 5 05-page047 | |
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