| Description | Date | Identifier | |
| Royalty payments to General Motors for anti-resonant silencer patents. | 25th Apr 1933 | Box 147 \ 1 scan0004 | |
| Correspondence regarding a royalty agreement for anti-resonant silencer patents. | 24th Apr 1933 | Box 147 \ 1 scan0005 | |
| Letter from Frank B. Halford to E. Hives regarding a self-adjusting valve rocker for potential car engine use. | 6th May 1933 | Box 147 \ 1 scan0006 | |
| Letter to Frank B. Halford Esq. regarding a meeting to discuss a scheme for automatically adjustable tappets. | 9th May 1933 | Box 147 \ 1 scan0007 | |
| 'GERA' petrol switch being used by a Bomber Squadron. | 4th Jun 1932 | Box 147 \ 1 scan0008 | |
| Brochure for the 'GEKA' petrol stopper, an electrically operated fuel cut-off valve. | 4th Jun 1932 | Box 147 \ 1 scan0009 | |
| Promotional leaflet for the 'GEKA' Petrol Stopper, detailing its safety, anti-theft, and fuel economy features. | 3rd Jul 1933 | Box 147 \ 1 scan0010 | |
| Letter from Heenan and Froude Ltd. regarding demonstrations of H.F. Car Testers and Vibrators. | 3rd Jul 1933 | Box 147 \ 1 scan0011 | |
| Letter proposing a device involving a spongy wheel to improve tyre grip on greasy roads. | 20th Aug 1933 | Box 147 \ 1 scan0012 | |
| Hand-drawn sketch of a wheel-operated cleaner mechanism for a vehicle. | 20th Nov 1933 | Box 147 \ 1 scan0013 | |
| Letter from The Rover Company Ltd. regarding a patent dispute with Chrysler over 'Floating Power Suspension'. | 20th Nov 1933 | Box 147 \ 1 scan0014 | |
| Letter from Capt. Wilks of Rover Motor Co. about brakes, bumpers, and diamond engine mounting. | 21th Nov 1933 | Box 147 \ 1 scan0015 | |
| Letter to The Rover Motor Co. Ltd. regarding a stabilising bumper and the Chrysler 'Floating Power Suspension' patent. | 21th Nov 1933 | Box 147 \ 1 scan0016 | |
| Forwarding a previous reply sent to General Motors Ltd. to answer a similar query from Capt. Wilks. | 22th Nov 1933 | Box 147 \ 1 scan0017 | |
| Letter from the Experimental Dept. to Rover Motor Co. Ltd. regarding Chrysler's 'floating power' patents. | 23th Nov 1933 | Box 147 \ 1 scan0018 | |
| Letter from The Rover Company Ltd. discussing a patent issue regarding engine suspension. | 25th Nov 1933 | Box 147 \ 1 scan0019 | |
| Letter proposing an invention to replace rubber tubing between the radiator and engine water system. | 14th Dec 1933 | Box 147 \ 1 scan0020 | |
| Letter from the Experimental Dept. to T. Payne Esq. rejecting a submitted suggestion and returning a drawing. | 16th Dec 1933 | Box 147 \ 1 scan0021 | |
| Confirming a discussion on chassis patent work for various features of the Spectre and Phantom models. | 18th Jan 1934 | Box 147 \ 1 scan0022 | |
| Recommendation to patent a scheme for controllable dampers that ensures maximum damping when brakes are applied. | 19th Jan 1934 | Box 147 \ 1 scan0023 | |
| Requirements to obtain a provisional patent for a brake damping system. | 30th Jan 1934 | Box 147 \ 1 scan0024 | |
| Letter to F.B. Halford regarding the development of automatic tappets and an invitation to Derby. | 15th Feb 1934 | Box 147 \ 1 scan0025 | |
| Letter concerning British Patent No. 352827 for an oscillation damper for shafts. | 21th Aug 1934 | Box 147 \ 1 scan0026 | |
| Internal memorandum regarding British Patent No. 352827 for an oscillation damper for shafts. | 27th Oct 1934 | Box 147 \ 1 scan0027 | |
| Examination and critique of the Buckley Patent Adjustable Tappets device. | 20th Mar 1935 | Box 147 \ 1 scan0028 | |
| Letter regarding a patent for adjustable tappets submitted by consulting engineer Mr. A. B. Buckley. | 18th Mar 1935 | Box 147 \ 1 scan0029 | |
| Description of the Buckley Patent Adjustable Tappets, their components, and assembly process. | 18th Mar 1935 | Box 147 \ 1 scan0030 | |
| The design and adjustment of valve springs and tappet clearance in engines. | 18th Mar 1935 | Box 147 \ 1 scan0031 | |
| Blueprint of Buckley Patent Adjustable Tappets for a Morris Oxford Light Six. | 28th Mar 1935 | Box 147 \ 1 scan0032 | |
| Letter to Mr. Hives suggesting a patented device for infusing oil into cylinder heads to prevent wear during cold starts. | 28th Mar 1935 | Box 147 \ 1 scan0033 | |
| Buckley Patent Adjustable Tappets, with attached correspondence and blueprint. | 1st Apr 1935 | Box 147 \ 1 scan0034 | |
| Letter from a consulting engineer regarding the design and clearance of patent tappets and spiral spring washers. | 27th Mar 1935 | Box 147 \ 1 scan0035 | |
| Engine tappet design, spring washers, and oil pressure application. | 27th Mar 1935 | Box 147 \ 1 scan0036 | |
| Concluding page of a letter discussing a solution to a valve gear problem by using spring loading. | 2nd Apr 1935 | Box 147 \ 1 scan0037 | |
| Requirements for adjustable tappet mechanisms and rejecting the Buckley Patent device. | 2nd Apr 1935 | Box 147 \ 1 scan0038 | |
| Letter responding to an earlier correspondence regarding a friend's patent proposal. | 26th Apr 1935 | Box 147 \ 1 scan0039 | |
| Letter from stockbroker William Chapman & Co to E.W. Hives acknowledging receipt of his letter. | 29th Apr 1935 | Box 147 \ 1 scan0040 | |
| Provisional patenting of new ideas. | 1st May 1935 | Box 147 \ 1 scan0041 | |
| Letter forwarding a specification and blueprint for an upper cylinder lubrication system for internal combustion engines. | 6th May 1935 | Box 147 \ 1 scan0042 | |
| Letter declining a patented device for upper cylinder lubrication. | 15th May 1935 | Box 147 \ 1 scan0043 | |
| Internal memorandum regarding the provisional patenting of new ideas. | 1st Jul 1935 | Box 147 \ 1 scan0044 | |
| Reminding staff about the importance of provisionally patenting new ideas. | 31th Jul 1935 | Box 147 \ 1 scan0045 | |
| Internal note expressing a lack of interest in a licence. | 31th Jul 1935 | Box 147 \ 1 scan0046 | |
| Letter from patent agents regarding a British Patent for resilient engine mountings by Lancia & Co. | 31th Jul 1935 | Box 147 \ 1 scan0047 | |
| Patent specification for improvements to the mounting of engines in motor vehicles to reduce vibration. | 23th Nov 1933 | Box 147 \ 1 scan0048 | |
| Patent specification for a resilient engine mounting system in motor vehicles. | 12th Jul 1932 | Box 147 \ 1 scan0049 | |
| Provisional patent specification for an improved brake drum cooling design. | 2nd Aug 1935 | Box 147 \ 1 scan0050 | |
| Royalty payments for patented parts on the Phantom III chassis. | 28th Oct 1935 | Box 147 \ 1 scan0051 | |
| Royalty payments for patents related to the Phantom III chassis. | 1st Nov 1935 | Box 147 \ 1 scan0052 | |
| The importance of considering provisional patents for new ideas. | 1st Nov 1935 | Box 147 \ 1 scan0053 | |
| Letter from Edmond Lombard regarding patents for a shock absorber-stabilizer-compensator system he has developed. | 13th Nov 1935 | Box 147 \ 1 scan0054 | |
| Letter in French discussing the objections and advantages of a shock absorber and regulator system. | 13th Nov 1935 | Box 147 \ 1 scan0055 | |
| Follow-up letter from Edmond Lombard regarding issues with integral compensation and proposing a new regulator system. | 13th Feb 1935 | Box 147 \ 1 scan0056 | |
| Addition to a French patent of invention for a suspension stabilizer-compensator for vehicles. | 19th Jul 1933 | Box 147 \ 1 scan0057 | |
| French language technical description of a hydraulic suspension and damping system. | 19th Jul 1933 | Box 147 \ 1 scan0058 | |
| Schematic diagrams of a mechanical system, possibly a suspension or hydraulic damping system, with a detailed cross-section view. | 19th Jul 1933 | Box 147 \ 1 scan0059 | |
| Cross-sectional diagrams of two mechanical assemblies, labelled as figures 3 and 4. | 19th Jul 1933 | Box 147 \ 1 scan0060 | |
| French language technical description of a hydraulic compensator/regulator system. | 19th Dec 1931 | Box 147 \ 1 scan0061 | |
| French patent document describing a compensating stabilizer suspension system for automobiles. | 19th Dec 1931 | Box 147 \ 1 scan0062 | |
| Letter from an inventor following up on a submitted design for a patented Windscreen Defroster, outlining commercial terms. | 15th Nov 1935 | Box 147 \ 1 scan0063 | |
| Letter from the Experimental Department regarding a search for a missing Brookfield Windscreen Defroster Drawing. | 25th Nov 1935 | Box 147 \ 1 scan0064 | |
| Letter discussing a patent and requesting information on torsion bar suspension systems, specifically from Citroen and Chenard Walcker. | 26th Nov 1935 | Box 147 \ 1 scan0065 | |
| Letter to Mons. Edmond Lombard declining interest in hydraulically compensated shock absorbers. | 26th Nov 1935 | Box 147 \ 1 scan0066 | |
| Follow-up letter regarding a blueprint and an inquiry about fitting a device to vehicles as an accessory. | 26th Nov 1935 | Box 147 \ 1 scan0067 | |
| Letter to Mr. J. Carr Brookfield regarding a lost drawing and requesting a new copy. | 28th Nov 1935 | Box 147 \ 1 scan0068 | |
| Letter to W.A. Rowbotham of the Experimental Department, enclosing a drawing and specification. | 2nd Dec 1935 | Box 147 \ 1 scan0069 | |
| Letter declining a patent suggestion in favour of a simpler electrical defroster. | 10th Dec 1935 | Box 147 \ 1 scan0070 | |
| Reminding recipients to consider provisionally patenting new ideas. | 1st Jan 1936 | Box 147 \ 1 scan0071 | |
| Forwarding a letter from a patent agent and declining their services. | 11th Jan 1936 | Box 147 \ 1 scan0072 | |
| Letter from the French engineering firm 'Consortium d'Etudes Techniques' offering design and drawing services, featuring a technical illustration of a rear axle. | 9th Jan 1936 | Box 147 \ 1 scan0073 | |
| The importance of provisionally patenting new ideas. | 31th Jan 1936 | Box 147 \ 1 scan0074 | |
| Patent specification for improvements to sound wave attenuating apparatus, specifically for internal combustion engines. | 10th Apr 1933 | Box 147 \ 1 scan0075 | |
| Patent specification for a sound wave attenuating unit, such as an exhaust silencer, for an internal combustion engine. | 10th Apr 1933 | Box 147 \ 1 scan0076 | |
| Detailed explanation of a sound attenuating unit for an internal combustion engine's exhaust system. | 10th Apr 1933 | Box 147 \ 1 scan0077 | |
| Detailed specification for a sound wave attenuating unit, referencing multiple figures and component designs. | 10th Apr 1933 | Box 147 \ 1 scan0078 | |
| Patent specification detailing claims for a sound-attenuating apparatus. | 10th Apr 1933 | Box 147 \ 1 scan0079 | |
| Patent specification drawings for a motor vehicle chassis and an exhaust silencer. | 24th Feb 1936 | Box 147 \ 1 scan0080 | |
| Outside patent searches, detailing a Ford patent and listing others for review. | 24th Feb 1936 | Box 147 \ 1 scan0081 | |
| List of technical applications detailing their number, applicant, and title. | 2nd Mar 1936 | Box 147 \ 1 scan0082 | |
| Reminding staff of the importance of provisionally patenting new ideas. | 2nd Mar 1936 | Box 147 \ 1 scan0083 | |
| Reminding staff about the importance of considering new ideas for provisional patents. | 1st Apr 1936 | Box 147 \ 1 scan0084 | |
| Listing recently filed provisional patent specifications. | 15th Apr 1936 | Box 147 \ 1 scan0085 | |
| The importance of provisionally patenting new ideas. | 1st May 1936 | Box 147 \ 1 scan0086 | |
| On Patent Specification 445,046, preferring to grant a license rather than dispose of the patent outright. | 13th Aug 1936 | Box 147 \ 1 scan0087 | |
| Reminding staff about the importance of provisionally patenting new ideas. | 11th Sep 1936 | Box 147 \ 1 scan0088 | |
| Letter to The Automotive Products Co. Ltd. regarding a signed draft patent specification. | 16th Sep 1936 | Box 147 \ 1 scan0089 | |
| Importance of considering provisional patents for new ideas and ongoing work. | 2nd Nov 1936 | Box 147 \ 1 scan0090 | |
| Reminding staff about the importance of considering provisional patents for new ideas and work in progress. | 30th Nov 1936 | Box 147 \ 1 scan0091 | |
| British patent searches, specifications, and recently filed applications. | 29th Dec 1936 | Box 147 \ 1 scan0092 | |
| Report by Claremont Haynes & Co on outside patent searches, listing available specifications for the week. | 23th Dec 1936 | Box 147 \ 1 scan0093 | |
| Report by Claremont Haynes & Co. listing patent applications for the week. | 17th Dec 1936 | Box 147 \ 1 scan0094 | |
| List of patent applications with their corresponding patentee and title. | 4th Jan 1937 | Box 147 \ 1 scan0095 | |
| Outside British patent searches, with attached lists of available specifications and recently filed applications. | 4th Jan 1937 | Box 147 \ 1 scan0096 | |
| Report from Claremont Haynes & Co listing available patent specifications. | 31th Dec 1936 | Box 147 \ 1 scan0097 | |
| List of patents including patent number, patentee, and title. | 23th Dec 1936 | Box 147 \ 1 scan0098 | |
| Outside patent searches listing applications for the week ending 23rd December 1936. | 23th Dec 1936 | Box 147 \ 1 scan0099 | |
| List of patent applications with their number, patentee, and title. | 1st Jan 1937 | Box 147 \ 1 scan0100 | |
| Reminding staff about the importance of provisionally patenting new ideas. | 1st Jan 1937 | Box 147 \ 1 scan0101 | |
| British patent searches, enclosing a list of new specifications and applications. | 27th Jan 1937 | Box 147 \ 1 scan0102 | |
| Report by Claremont Haynes & Co on outside patent searches and applications. | 14th Jan 1937 | Box 147 \ 1 scan0103 | |
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