| Description | Date | Identifier | |
| Complete specification document for an improved method of securing wheel discs to an automobile. | 2nd Jul 1938 | Box 147 \ 3 scan0148 | |
| Description of a wheel disc invention, its fitting, and references to accompanying drawings. | 2nd Jul 1938 | Box 147 \ 3 scan0149 | |
| Description of a wheel hub assembly, detailing how a nut and disc secure the components in place. | 2nd Jul 1938 | Box 147 \ 3 scan0150 | |
| Description of an invention for a disc cover for the spoked wheel of an automobile. | 23th Sep 1938 | Box 147 \ 3 scan0151 | |
| Legal document detailing claims for an automobile wheel disc cover, submitted by solicitors. | 23th Sep 1938 | Box 147 \ 3 scan0152 | |
| Complete specification cover page for wheel discs, addressed to S. H. Grylls Esquire. | 22th Sep 1938 | Box 147 \ 3 scan0153 | |
| Cross-section diagram of a wheel disc securing mechanism. | 1st Jan 1938 | Box 147 \ 3 scan0154 | |
| Letter inquiring about interest in a newly perfected and patented accelerator pedal designed to reduce leg strain. | 24th Sep 1928 | Box 147 \ 3 scan0155 | |
| Description of a new accelerator design which allows the driver to rest their foot on the pedal. | 24th Sep 1928 | Box 147 \ 3 scan0156 | |
| Description of an improved accelerator design and its advantages for keeping within speed limits. | 24th Sep 1928 | Box 147 \ 3 scan0157 | |
| Offer to provide working drawings for a new accelerator design to be manufactured under license for cash and royalty payments. | 15th Jan 1920 | Box 147 \ 3 scan0158 | |
| Letter concerning the production of a new accelerator, with an appended note referencing previous correspondence. | 15th Jan 1920 | Box 147 \ 3 scan0159 | |
| Arrangements for the free use of a jacking system patented by Vauxhall Motors Ltd. | 28th Sep 1938 | Box 147 \ 3 scan0160 | |
| Letter from the Experimental Dept. regarding patented accelerator pedal drawings. | 29th Sep 1938 | Box 147 \ 3 scan0161 | |
| Reminding staff to consider provisionally patenting new ideas. | 1st Oct 1938 | Box 147 \ 3 scan0162 | |
| Provisional patent specification for improvements to disc-covered wheels fitted with pneumatic tyres. | 9th Jun 1934 | Box 147 \ 3 scan0163 | |
| Complete specification for improvements related to disc-covered wheels fitted with pneumatic tyres. | 30th Nov 1934 | Box 147 \ 3 scan0164 | |
| Patent specification document detailing claims for disc-covered wheels. | 30th Nov 1934 | Box 147 \ 3 scan0165 | |
| Complete specification diagrams for a wheel and associated mechanism. | 30th Nov 1934 | Box 147 \ 3 scan0166 | |
| Complete specification drawings, Sheet 3 of 3, for a mechanical assembly. | 22th Oct 1938 | Box 147 \ 3 scan0167 | |
| Letter concerning the provisionally patented 'ACCELEREST' invention following the Motor Show, promising to dispatch working drawings. | 22th Oct 1938 | Box 147 \ 3 scan0168 | |
| Letter from A. Alltree regarding a new preselector gear control development using positive means instead of spring force. | 25th Oct 1938 | Box 147 \ 3 scan0169 | |
| Preselector gear change system with positive gear shifting, foot control, and power changing. | 25th Oct 1938 | Box 147 \ 3 scan0170 | |
| Letter from a Captain Hartcup offering to demonstrate a petrol gauge developed by an amateur mechanic. | 28th Oct 1938 | Box 147 \ 3 scan0171 | |
| Letter from the Experimental Department requesting details and drawings of a petrol gauge. | 28th Oct 1938 | Box 147 \ 3 scan0172 | |
| Letter proposing to send a car for inspection to avoid creating drawings for a lamp. | 31th Oct 1938 | Box 147 \ 3 scan0173 | |
| Letter suggesting a telegram is a cheaper way to show an instrument than making drawings. | 1st Jan 1938 | Box 147 \ 3 scan0174 | |
| The importance of considering provisional patents for new ideas. | 1st Jan 1938 | Box 147 \ 3 scan0175 | |
| Technical memorandum describing the operation and potential issues of a new type of petrol gauge. | 2nd Nov 1938 | Box 147 \ 3 scan0176 | |
| Typed note discussing the suitability of a gauge for storage tanks and recording oil levels. | 2nd Nov 1938 | Box 147 \ 3 scan0177 | |
| Letter to Capt. Hartcup discussing the difficulties of fitting his petrol gauge design, citing issues with sealing and modern practice. | 8th Nov 1938 | Box 147 \ 3 scan0178 | |
| Letter to Capt. Hartcup regarding the testing of gauges for storage tanks. | 8th Nov 1938 | Box 147 \ 3 scan0179 | |
| Requesting a patent for a raised crown piston design. | 28th Nov 1938 | Box 147 \ 3 scan0180 | |
| Modification to the 'Aerolite' piston crown to raise the compression ratio. | 28th Nov 1938 | Box 147 \ 3 scan0181 | |
| Reminding staff to consider provisionally patenting new ideas. | 1st Jan 1938 | Box 147 \ 3 scan0182 | |
| Letter discussing a multiple cylinder engine concept for aircraft wings. | 1st Jan 1938 | Box 147 \ 3 scan0183 | |
| Inquiry regarding the feasibility of driving a supercharger from a flat engine. | 1st Jan 1938 | Box 147 \ 3 scan0184 | |
| Letter from Peter Rowland of Liverpool regarding his love of machines and an accompanying sketch. | 1st Dec 1938 | Box 147 \ 3 scan0185 | |
| Letter from Griffith Brewer discussing Peter Rowland's idea for an engine designed to fit inside an aeroplane wing. | 1st Dec 1938 | Box 147 \ 3 scan0186 | |
| Rough sketch of a horizontally opposed engine design for an aircraft wing. | 1st Dec 1938 | Box 147 \ 3 scan0187 | |
| Letter proposing a multiple-cylinder horizontally opposed engine for racing cars and aeroplanes. | 9th Jan 1939 | Box 147 \ 3 scan0188 | |
| Letter proposing a meeting to discuss a new, practical and exclusive feature for the cars. | 9th Jan 1939 | Box 147 \ 3 scan0189 | |
| The concluding page of a handwritten letter discussing steering improvements and requesting a reply. | 10th Jan 1939 | Box 147 \ 3 scan0190 | |
| Letter to Mr. H. Martin deferring a meeting about his invention pending more information. | 10th Jan 1939 | Box 147 \ 3 scan0191 | |
| Letter discussing the diameter of centrifugal superchargers and preferences for aircraft engine development. | 10th Jan 1939 | Box 147 \ 3 scan0192 | |
| The filing of a provisional patent specification for a flywheel with a flexible centre. | 20th Dec 1938 | Box 147 \ 3 scan0193 | |
| Typed letter discussing engine design concepts, including superchargers, flat engines, and cylinder configurations. | 20th Dec 1938 | Box 147 \ 3 scan0194 | |
| The filing of two provisional patent specifications. | 28th Dec 1938 | Box 147 \ 3 scan0195 | |
| Request to photograph a left-hand drive P. II car with the door open for 'the Autocar' magazine. | 4th Nov 1930 | Box 147 \ 3 scan0196 | |
| Confirming that requested photographs have been sent. | 8th Nov 1930 | Box 147 \ 3 scan0197 | |
| Note of thanks for two photographs of a L.H. P.II. | 11th Nov 1930 | Box 147 \ 3 scan0198 | |
| Letter from Lodge Plugs Limited enclosing a photograph of an H.J. Mulliner body on a 25 HP chassis. | 18th Nov 1930 | Box 147 \ 3 scan0199 | |
| Letter to Bernard Hopps of Lodge Plugs Ltd. thanking him for a photograph. | 19th Nov 1930 | Box 147 \ 3 scan0200 | |
| Invoice from Hoare & Son for plate copies and prints, seeking a covering order for payment. | 29th Dec 1930 | Box 147 \ 3 scan0201 | |
| Request to order copies and prints of crankshaft tests from Hoare & Son, Derby. | 30th Dec 1930 | Box 147 \ 3 scan0202 | |
| Request to pass an order to Messrs. Hoare & Son for prints as per attached invoices. | 13th Jan 1931 | Box 147 \ 3 scan0203 | |
| Request to arrange photographs of completed Peregrine cars with different body types. | 9th Dec 1932 | Box 147 \ 3 scan0204 | |
| Availability of two cars for photography. | 12th Dec 1932 | Box 147 \ 3 scan0205 | |
| Logistical arrangements for photographing a Four-light Saloon and a Close-coupled Saloon. | 14th Dec 1932 | Box 147 \ 3 scan0206 | |
| Reply regarding the unavailability of a car for photographs due to ongoing testing and body fitting schedules. | 19th Dec 1932 | Box 147 \ 3 scan0207 | |
| Secret internal memorandum requesting a time to photograph a six light saloon. | 30th Dec 1932 | Box 147 \ 3 scan0208 | |
| Secret memo regarding the delayed receipt of the final Peregrine six-light saloon body from the coachbuilders. | 2nd Jan 1933 | Box 147 \ 3 scan0209 | |
| Photographs of Bensport and a request for additional snapshots from France. | 11th Feb 1933 | Box 147 \ 3 scan0210 | |
| Request for snapshots of a Bentley car. | 13th Feb 1933 | Box 147 \ 3 scan0211 | |
| Dissatisfaction with posed photographs of a Bensport car. | 14th Feb 1933 | Box 147 \ 3 scan0212 | |
| Dispatch of Bensport photographs and awaiting more from Chateauroux. | 3rd Mar 1933 | Box 147 \ 3 scan0213 | |
| Letter from photographer Maurice Beck to Mr. Hives regarding some prints. | 17th Oct 1933 | Box 147 \ 3 scan0214 | |
| Letter to Maurice Beck Esq. thanking him for photographs. | 20th Oct 1933 | Box 147 \ 3 scan0215 | |
| The distribution of British patent search results for the week ending 27th June 1940. | 1st Jul 1940 | Box 147 \ 4 scan0001 | |
| Report by Claremont Haynes & Co. listing available patent specifications for the week ending 27th June 1940. | 27th Jun 1940 | Box 147 \ 4 scan0002 | |
| Report by Claremont Haynes & Co. on outside patent searches for the week ending 20th June 1940. | 20th Jun 1940 | Box 147 \ 4 scan0003 | |
| Outside patent searches listing specifications not yet accepted but open to public inspection for the week ending 27th June 1940. | 27th Jun 1940 | Box 147 \ 4 scan0004 | |
| Report by Claremont Haynes & Co. on outside patent searches, listing recent applications. | 4th Jul 1940 | Box 147 \ 4 scan0005 | |
| List of British patent searches, with specifications divided into chassis and aero groups. | 9th Jul 1940 | Box 147 \ 4 scan0006 | |
| Report from Claremont Haynes & Co. on outside patent searches, listing specifications with an opposition date of 19th August 1940. | 5th Jul 1940 | Box 147 \ 4 scan0007 | |
| Report from Claremont Haynes & Co. listing outside patent searches for the week ending 4th July 1940. | 4th Jul 1940 | Box 147 \ 4 scan0008 | |
| Report from Claremont Haynes & Co detailing patent specifications open to public inspection. | 4th Jul 1940 | Box 147 \ 4 scan0009 | |
| Outside patent searches listing specifications that have become available for opposition. | 11th Jul 1940 | Box 147 \ 4 scan0010 | |
| Typed list of patents detailing the patent number, patentee, and title. | 11th Jul 1940 | Box 147 \ 4 scan0011 | |
| Report by Claremont Haynes & Co. on outside patent searches for specifications not yet open to public inspection. | 11th Jul 1940 | Box 147 \ 4 scan0012 | |
| The distribution of British patent searches for chassis, aero, and alloys. | 17th Jul 1940 | Box 147 \ 4 scan0013 | |
| British patent search results and specifications. | 29th Jul 1940 | Box 147 \ 4 scan0014 | |
| Outside patent searches listing available specifications. | 17th Jul 1940 | Box 147 \ 4 scan0015 | |
| Outside patent searches and applications by Clarimonet Haynes & Co. | 11th Jul 1940 | Box 147 \ 4 scan0016 | |
| Patent search report from Claremont Haynes & Co. listing specifications open for public inspection. | 17th Jul 1940 | Box 147 \ 4 scan0017 | |
| Report by Claremont Haynes & Co. on outside patent searches listing available specifications of interest. | 17th Jul 1940 | Box 147 \ 4 scan0018 | |
| Cover letter for a list of British patent searches, detailing the categorization and distribution of the specifications. | 30th Jul 1940 | Box 147 \ 4 scan0019 | |
| Report by Claremont Haynes & Co. on outside patent searches and available specifications. | 25th Jul 1940 | Box 147 \ 4 scan0020 | |
| Report by Claremont Haynes & Co. on outside patent searches, listing various patent applications. | 18th Jul 1940 | Box 147 \ 4 scan0021 | |
| Report by Claremont Haynes & Co. on outside patent searches, listing a specification for friction clutches by General Motors. | 25th Jul 1940 | Box 147 \ 4 scan0022 | |
| Report by Claremont Haynes & Co. on outside patent searches for the week ending 25th July 1940. | 25th Jul 1940 | Box 147 \ 4 scan0023 | |
| Summary list of patents with numbers, patentees, titles, and brief explanations. | 6th Aug 1940 | Box 147 \ 4 scan0024 | |
| Outlining the process for distributing lists of British patent searches. | 6th Aug 1940 | Box 147 \ 4 scan0025 | |
| Patent search report by Clarmont Haynes & Co. listing newly available specifications. | 1st Aug 1940 | Box 147 \ 4 scan0026 | |
| List of patents with their respective patentees and titles. | 1st Aug 1940 | Box 147 \ 4 scan0027 | |
| Outside patent searches listing specifications open to public inspection. | 1st Aug 1940 | Box 147 \ 4 scan0028 | |
| Report by Claremont Haynes & Co. on outside patent searches, listing applications for the week ending 25th July 1940. | 25th Jul 1940 | Box 147 \ 4 scan0029 | |
| Report from Claremont Haynes & Co. detailing outside patent searches. | 1st Aug 1940 | Box 147 \ 4 scan0030 | |
| List of patent abstracts related to engines and vehicle components. | 1st Aug 1940 | Box 147 \ 4 scan0031 | |
| Abstract of patents relating to screw propellers and cylinder construction for internal combustion engines. | 15th Aug 1940 | Box 147 \ 4 scan0032 | |
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