| Description | Date | Identifier | |
| Patent specification by Frank Whittle for improvements in the design and efficiency of axial flow turbines and compressors. | 15th Dec 1937 | Box 147 \ 2 scan0203 | |
| Detailed specification for the design and operation of axial flow turbine and compressor blades based on fluid dynamics. | 21th Aug 1939 | Box 147 \ 2 scan0204 | |
| Detailed analysis of turbine blade design, comparing a conventional form with a new invention using mathematical formulas and calculations. | 16th Jan 1939 | Box 147 \ 2 scan0205 | |
| Patent specification detailing claims for an axial flow turbine, compressor, or pump. | 16th Jan 1939 | Box 147 \ 2 scan0206 | |
| Complete specification drawing illustrating designs for turbine or compressor blades and associated velocity diagrams. | 16th Jan 1930 | Box 147 \ 2 scan0207 | |
| Patent specification for improvements in the propulsion of aircraft and other vehicles. | 16th Jan 1930 | Box 147 \ 2 scan0208 | |
| Complete patent specification by Frank Whittle for improvements relating to the propulsion of aircraft and other vehicles. | 14th Jan 1930 | Box 147 \ 2 scan0209 | |
| Patent application page by F. Whittle detailing the claims for a turbo-compressor propulsion device. | 14th Oct 1930 | Box 147 \ 2 scan0210 | |
| Complete specification document featuring a pressure-volume diagram and a cross-section of a mechanical assembly. | 25th Feb 1938 | Box 147 \ 2 scan0211 | |
| Patent specification for improvements to aircraft propulsion using gaseous jet reaction. | 25th Feb 1938 | Box 147 \ 2 scan0212 | |
| Patent specification by Frank Whittle for improvements relating to the propulsion of aircraft by gaseous jet reaction. | 25th Feb 1938 | Box 147 \ 2 scan0213 | |
| Patent specification for an aircraft design with a jet engine that ingests boundary-layer air to improve propulsive efficiency and reduce drag. | 23th Mar 1939 | Box 147 \ 2 scan0214 | |
| Page from a patent application detailing claims for an aircraft's fuselage, nozzle, and landing gear. | 23th Mar 1939 | Box 147 \ 2 scan0215 | |
| Complete specification drawing for a jet-propelled aircraft. | 23th Mar 1939 | Box 147 \ 2 scan0216 | |
| Reminding staff of the importance of considering provisional patents for new ideas. | 1st Feb 1940 | Box 147 \ 2 scan0217 | |
| Distributing the results of British patent searches for the last week to relevant departments. | 1st Feb 1940 | Box 147 \ 2 scan0218 | |
| Report by Claremont Haynes & Co on outside patent searches listing available specifications. | 25th Jan 1940 | Box 147 \ 2 scan0219 | |
| Report by Claremont Haynes & Co. on outside patent searches for specifications not yet accepted. | 25th Jan 1940 | Box 147 \ 2 scan0220 | |
| Report from Claremont Haynes & Co. on outside patent searches and applications. | 18th Jan 1940 | Box 147 \ 2 scan0221 | |
| Letter to Mr. E. Mirone in Italy regarding a newly developed gear and a request for its patent specification. | 1st Feb 1940 | Box 147 \ 2 scan0222 | |
| Responding to a query about the Clayton Dewandre patent for windscreen defrosters. | 7th Feb 1940 | Box 147 \ 2 scan0223 | |
| Internal correspondence concerning a potential windscreen defroster patent infringement. | 7th Feb 1940 | Box 147 \ 2 scan0224 | |
| Patent specification for a heating device for power-driven vehicles. | 10th May 1938 | Box 147 \ 2 scan0225 | |
| Page 2 of a patent specification detailing the construction and claims for a vehicle heating and windscreen demisting device. | 10th May 1938 | Box 147 \ 2 scan0226 | |
| Complete specification sheet with diagrams for a vehicle heater and demister unit. | 20th Feb 1940 | Box 147 \ 2 scan0227 | |
| Claims for improvements to car heaters and windscreen defrosters for patent consideration. | 20th Feb 1940 | Box 147 \ 2 scan0228 | |
| Technical document detailing the method of construction for a car heater. | 20th Feb 1940 | Box 147 \ 2 scan0229 | |
| List of patent-style claims for a vehicle heater and defroster system. | 20th Feb 1940 | Box 147 \ 2 scan0230 | |
| Method of construction for a car heater, detailing its components and operation. | 20th Feb 1940 | Box 147 \ 2 scan0231 | |
| The claims for a vehicle heater and defroster system. | 21th Feb 1940 | Box 147 \ 2 scan0232 | |
| Letter from patent agents offering a commercial development opportunity for British Patent No. 457939. | 21th Feb 1940 | Box 147 \ 2 scan0233 | |
| Cover letter distributing British patent search results and specifications to different departments. | 22th Feb 1940 | Box 147 \ 2 scan0234 | |
| Report by Claremont Haynes & Co. listing available patent specifications. | 15th Feb 1940 | Box 147 \ 2 scan0235 | |
| Typed list of patents detailing the patent number, patentee, and title. | 8th Feb 1940 | Box 147 \ 2 scan0236 | |
| Outside patent searches listing recent applications from various patentees. | 8th Feb 1940 | Box 147 \ 2 scan0237 | |
| Report by Claremont Haynes & Co. on outside patent searches for the week ending 15th February 1940. | 15th Feb 1940 | Box 147 \ 2 scan0238 | |
| List of patents with their number, patentee, and title. | 8th Feb 1940 | Box 147 \ 2 scan0239 | |
| Report by Claremont Haynes & Co. on outside patent searches, listing available specifications for the week. | 8th Feb 1940 | Box 147 \ 2 scan0240 | |
| Report by Claremont Haynes & Co. on outside patent searches listing applications, patentees, and titles. | 1st Feb 1940 | Box 147 \ 2 scan0241 | |
| Report by Claremont Haynes & Co. on outside patent searches listing specifications open to public inspection. | 8th Feb 1940 | Box 147 \ 2 scan0242 | |
| List of German patents with their number, patentee, and title. | 27th Feb 1940 | Box 147 \ 2 scan0243 | |
| Distributing British patent search results, dividing specifications into chassis and aero groups. | 27th Feb 1940 | Box 147 \ 2 scan0244 | |
| Report by Claremont Haynes & Co. on outside patent searches and specifications which have become available. | 22th Feb 1940 | Box 147 \ 2 scan0245 | |
| Patent document for improvements to hollow moulded plastic airscrew blades. | 15th Feb 1940 | Box 147 \ 2 scan0246 | |
| Outside patent searches listing recent applications. | 15th Feb 1940 | Box 147 \ 2 scan0247 | |
| List of patent applications with their numbers, patentees, and titles. | 22th Feb 1940 | Box 147 \ 2 scan0248 | |
| Outside patent searches listing specifications not yet open to public inspection. | 22th Feb 1940 | Box 147 \ 2 scan0249 | |
| List of two patents, noting the patentee and title for each. | 28th Feb 1940 | Box 147 \ 2 scan0250 | |
| Letter to Messrs Stevens, Langner, Parry & Rollinson regarding British Patent No: 457939. | 28th Feb 1940 | Box 147 \ 2 scan0251 | |
| Cover memo for a list of translated Italian patent specifications. | 8th Mar 1940 | Box 147 \ 2 scan0252 | |
| Translated list of Italian patent specifications, including patent numbers, patentees, and titles. | 8th Mar 1940 | Box 147 \ 2 scan0253 | |
| List of translated titles of Italian patent specifications. | 11th Mar 1940 | Box 147 \ 2 scan0254 | |
| Cover letter distributing British patent search results for the week ending 7th March 1940. | 11th Mar 1940 | Box 147 \ 2 scan0255 | |
| Report by Claremont Haynes & Co. on outside patent searches listing available specifications. | 7th Mar 1940 | Box 147 \ 2 scan0256 | |
| Report by Claremont Haynes & Co. detailing outside patent search applications for a specific week. | 29th Feb 1940 | Box 147 \ 2 scan0257 | |
| Report by Claremont Haynes & Co. on outside patent searches for the week ending 7th March 1940. | 7th Mar 1940 | Box 147 \ 2 scan0258 | |
| The distribution of British patent search specifications. | 18th Mar 1940 | Box 147 \ 2 scan0259 | |
| Report from Claremont Haynes & Co. on outside patent searches for specifications which have become available. | 14th Mar 1940 | Box 147 \ 2 scan0260 | |
| List of patents with their respective patentees and titles. | 7th Mar 1940 | Box 147 \ 2 scan0261 | |
| Weekly report on outside patent searches listing new applications. | 7th Mar 1940 | Box 147 \ 2 scan0262 | |
| List of patent applications with their numbers, patentees, and titles. | 14th Mar 1940 | Box 147 \ 2 scan0263 | |
| Report by Claremont Haynes & Co. on patent specifications open for public inspection for the week ending 14th March 1940. | 14th Mar 1940 | Box 147 \ 2 scan0264 | |
| The internal distribution of British patent search specifications. | 28th Mar 1940 | Box 147 \ 2 scan0265 | |
| Report by Claremont Haynes & Co. on recently available patent specifications for the week ending 21st March 1940. | 21th Mar 1940 | Box 147 \ 2 scan0266 | |
| Outside patent searches and applications for the week ending 17th March 1940. | 17th Mar 1940 | Box 147 \ 2 scan0267 | |
| List of patent applications with corresponding numbers, patentees, and titles. | 21th Mar 1940 | Box 147 \ 2 scan0268 | |
| Report by Claremont Haynes & Co. on outside patent searches for the week ending 21st March 1940. | 21th Mar 1940 | Box 147 \ 2 scan0269 | |
| List of patents with their corresponding number, patentee, and title. | 21th Mar 1940 | Box 147 \ 2 scan0270 | |
| Reminding staff to consider provisionally patenting new ideas. | 2nd Apr 1940 | Box 147 \ 2 scan0271 | |
| Cover letter for a list of British patent searches, with specifications divided into aero and chassis groups for distribution. | 2nd Apr 1940 | Box 147 \ 2 scan0272 | |
| Patent search report from Claremont Haynes & Co. listing available specifications. | 28th Mar 1940 | Box 147 \ 2 scan0273 | |
| Patent cover sheet concerning aeronautical propeller blades and methods of locating the pitch axis. | 21th Mar 1940 | Box 147 \ 2 scan0274 | |
| Report by Claremont Haynes & Co. on outside patent searches listing applications for a specific week. | 21th Mar 1940 | Box 147 \ 2 scan0275 | |
| Cover note for a patent application by D.B. Foster related to internal combustion engines. | 28th Mar 1940 | Box 147 \ 2 scan0276 | |
| Patent search report by Claremont Haynes & Co. listing specifications open to public inspection. | 28th Mar 1940 | Box 147 \ 2 scan0277 | |
| List of patent applications with their number, patentee, and title. | 8th Apr 1940 | Box 147 \ 2 scan0278 | |
| British patent search results. | 8th Apr 1940 | Box 147 \ 2 scan0279 | |
| Report by Claremont Haynes & Co. on available patent specifications for the week ending 4th April 1940. | 4th Apr 1940 | Box 147 \ 2 scan0280 | |
| Outside patent searches listing recent applications. | 28th Mar 1940 | Box 147 \ 2 scan0281 | |
| Report from Claremont Haynes & Co. on outside patent searches listing specifications open for public inspection. | 4th Apr 1940 | Box 147 \ 2 scan0282 | |
| Car heaters, acknowledging signed documents and thanking for tracings and prints. | 10th Apr 1940 | Box 147 \ 2 scan0283 | |
| Patent for a brake controlling device. | 12th Apr 1940 | Box 147 \ 2 scan0284 | |
| French letter regarding a patent for improvements to an ignition system for flammable mixtures. | 12th Jan 1940 | Box 147 \ 2 scan0285 | |
| Circuit diagram illustrating a battery ignition system with a dynamo and distributor. | 12th Jan 1940 | Box 147 \ 2 scan0286 | |
| Patent for improvements to ignition systems for flammable mixtures. | 12th Jan 1940 | Box 147 \ 2 scan0287 | |
| French language document describing an invention for an engine ignition system and its components. | 15th Apr 1940 | Box 147 \ 2 scan0288 | |
| The distribution of British patent search results and specifications. | 15th Apr 1940 | Box 147 \ 2 scan0289 | |
| Report by Claremont Haynes & Co. on available patent specifications for the week. | 11th Apr 1940 | Box 147 \ 2 scan0290 | |
| Report from Claremont Haynes & Co. listing outside patent applications. | 4th Apr 1940 | Box 147 \ 2 scan0291 | |
| List of patent applications with their number, patentee, and title. | 11th Apr 1940 | Box 147 \ 2 scan0292 | |
| Report by Claremont Haynes & Co. on outside patent searches for the week ending 11th April 1940. | 11th Apr 1940 | Box 147 \ 2 scan0293 | |
| List of patents with their respective numbers, patentees, and titles. | 23th Apr 1940 | Box 147 \ 2 scan0294 | |
| British patent search results and specifications. | 23th Apr 1940 | Box 147 \ 2 scan0295 | |
| Report by Claremont Haynes & Co. on recently available patent specifications. | 18th Apr 1940 | Box 147 \ 2 scan0296 | |
| Report by Claremont Haynes & Co. listing outside patent searches for the week ending 11th April 1940. | 11th Apr 1940 | Box 147 \ 2 scan0297 | |
| List of patent applications with their number, patentee, and title. | 18th Apr 1940 | Box 147 \ 2 scan0298 | |
| Report by Claremont Haynes & Co. on outside patent searches for the week, listing specifications open for public inspection. | 18th Apr 1940 | Box 147 \ 2 scan0299 | |
| Patent search results for chassis, aero, and alloy specifications. | 30th Apr 1940 | Box 147 \ 2 scan0300 | |
| Report from Claremont Haynes & Co detailing outside patent searches and specifications which have become available. | 25th Apr 1940 | Box 147 \ 2 scan0301 | |
| Report from Claremont Haynes & Co. listing outside patent applications for the week ending 18th April 1940. | 18th Apr 1940 | Box 147 \ 2 scan0302 | |
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