| Description | Date | Identifier | |
| Letter from S.U. Carburetter Co. Ltd. confirming the use of an oiled silk insert in G.5 diaphragms. | 7th Jun 1937 | Box 149 \ 4 scan0326 | |
| Instruction to create a scheme for a single standby petrol pump and changeover switch for the Phantom III. | 8th Jun 1937 | Box 149 \ 4 scan0327 | |
| Request to have the petrol pipe fitted outside the frame, similar to the fitting on car 32-EX. | 10th May 1937 | Box 149 \ 4 scan0328 | |
| Internal request for a 12-volt accumulator for a Phantom III petrol pump test rig. | 10th Jun 1937 | Box 149 \ 4 scan0329 | |
| Requesting a scheme for positioning an AC mechanical pump on the engine frame. | 11th Jun 1937 | Box 149 \ 4 scan0330 | |
| Official order for pump diaphragm assemblies to be sent to the S.U. Co. | 12th Sep 1937 | Box 149 \ 4 scan0331 | |
| Internal order for a 12-volt accumulator required for the Phantom III petrol pump test rig in the Experimental Department. | 12th Jun 1937 | Box 149 \ 4 scan0332 | |
| Letter to The S.U. Company Ltd. regarding an order for high pressure pumps and diaphragm assemblies. | 12th Jun 1937 | Box 149 \ 4 scan0333 | |
| Request to manufacture six sets of brackets and rubber bases for an HP petrol pump. | 14th Jun 1937 | Box 149 \ 4 scan0334 | |
| Conference memo regarding the placement and necessity of a third petrol pump for the Phantom III model. | 14th Jun 1937 | Box 149 \ 4 scan0335 | |
| Quotation from James Booth & Company (1915) Limited for the supply of Beryllium Bronze Rod. | 16th Jun 1937 | Box 149 \ 4 scan0336 | |
| Letter from James Booth & Company regarding the properties and suitability of Beryllium Bronze. | 31th May 1937 | Box 149 \ 4 scan0337 | |
| From James Booth & Company concerning the corrosion-fatigue resistance of Beryllium Bronze. | 31th May 1937 | Box 149 \ 4 scan0338 | |
| General description of the alloy Beryllium Bronze, detailing its composition and mechanical properties. | 31th May 1937 | Box 149 \ 4 scan0339 | |
| The physical and mechanical properties of Beryllium Bronze, including its density and thermal conductivity compared to other alloys. | 31th May 1937 | Box 149 \ 4 scan0340 | |
| Comparison of the electrical conductivity and thermal expansion properties of beryllium bronze against other materials. | 31th May 1937 | Box 149 \ 4 scan0341 | |
| The thermal expansion coefficients and mechanical properties of various metals and alloys. | 31th May 1937 | Box 149 \ 4 scan0342 | |
| The mechanical properties and heat-treatment process for Beryllium Bronze. | 31th May 1937 | Box 149 \ 4 scan0343 | |
| The heat treatment, mechanical properties, and various applications of beryllium bronze. | 31th May 1937 | Box 149 \ 4 scan0344 | |
| Page detailing the applications and endurance of beryllium bronze for tools compared to other metals. | 17th Jun 1937 | Box 149 \ 4 scan0345 | |
| The positioning and design of petrol pumps for the Phantom III model. | 17th Jun 1937 | Box 149 \ 4 scan0346 | |
| New high-pressure pump scheme for the Phantom III chassis. | 18th Jun 1937 | Box 149 \ 4 scan0347 | |
| Inquiry into the number of petrol pump failures attributed to heat. | 18th Jun 1937 | Box 149 \ 4 scan0348 | |
| Inquiry regarding petrol pump failures and the percentage attributed to temperature. | 18th Jun 1937 | Box 149 \ 4 scan0349 | |
| Letter to AC-Sphinx Sparking Plug Co. Ltd. regarding a dimensional variance on a T type fuel pump. | 21th Jun 1937 | Box 149 \ 4 scan0350 | |
| Petrol pump troubles due to heat on the Phantom III model. | 23th Jun 1937 | Box 149 \ 4 scan0351 | |
| Petrol pump switches for the Phantom III chassis. | 23th Jun 1937 | Box 149 \ 4 scan0352 | |
| Requesting a test setup for an AC fuel pump on a Wraith engine. | 24th Jun 1937 | Box 149 \ 4 scan0353 | |
| Request for the supply of 3 Phantom III and 2 Bentley petrol pumps to the test department. | 24th Jun 1937 | Box 149 \ 4 scan0354 | |
| The production of S.U. petrol pump magnet pots and manufacturing tolerances. | 24th Jun 1937 | Box 149 \ 4 scan0355 | |
| Urgent request for a new petrol supply scheme for the Wraith III & Bentley III chassis. | 24th Jun 1937 | Box 149 \ 4 scan0356 | |
| Responding to suggestions regarding petrol pumps, outlining views and modifications. | 24th Jun 1937 | Box 149 \ 4 scan0357 | |
| Petrol pump failures caused by heat and excessive gassing of the petrol. | 24th Jun 1937 | Box 149 \ 4 scan0358 | |
| Suggestion to add an 'off' position to the petrol pump switch on the Phantom III model to manage carburettor flooding. | 25th Jun 1937 | Box 149 \ 4 scan0359 | |
| Communication confirming a query has been sent to the Depots regarding petrol pump troubles. | 25th Jun 1937 | Box 149 \ 4 scan0360 | |
| Letter to The S.U. Company Ltd. concerning missing parts, incorrect materials, and production limits for high-pressure pumps. | 25th Jun 1937 | Box 149 \ 4 scan0361 | |
| The Phantom III petrol pump being made without fuses, discussing the fire risk and policy. | 26th Jun 1937 | Box 149 \ 4 scan0362 | |
| Instruction to fit a high-pressure pump and fuses to chassis 37-EX. | 29th Jun 1937 | Box 149 \ 4 scan0363 | |
| Planned introduction and configurations of high-pressure petrol pumps for the Phantom III chassis. | 30th Jun 1937 | Box 149 \ 4 scan0364 | |
| Letter to The S.U. Company Ltd. regarding a dangerous feature on high pressure pumps causing the contact breaker bridge piece to break. | 5th Jul 1937 | Box 149 \ 4 scan0365 | |
| Request to manufacture bushes and end cutters for the modification of S.U. petrol pumps. | 6th Jul 1937 | Box 149 \ 4 scan0366 | |
| Instruction memo regarding the fitting of high-pressure petrol pumps to specific Phantom III cars. | 6th Jul 1937 | Box 149 \ 4 scan0367 | |
| The delivery of mild steel magnet pots and an S.U. double pump with diaphragm assemblies. | 7th Jul 1937 | Box 149 \ 4 scan0368 | |
| New marking 'C' for S.U. Petrol Pumps to indicate that pole pieces are central. | 8th Jul 1937 | Box 149 \ 4 scan0369 | |
| Letter to I.M. Waller in France discussing fuel starvation issues and modifications on the 32-EX model. | 10th Jul 1937 | Box 149 \ 4 scan0370 | |
| Petrol pump and filtration system for the Wraith model. | 10th Jul 1937 | Box 149 \ 4 scan0371 | |
| Request to mount a Wraith type S.U. pump and mounting to chassis 24-G-VI. | 12th Jul 1937 | Box 149 \ 4 scan0372 | |
| Letter from the Experimental Department to S.U. Carburettor Co. Ltd. requesting an urgent supply of double pumps. | 12th Jul 1937 | Box 149 \ 4 scan0373 | |
| Dispatch of an HP petrol pump and spare brass rollers for car 32-EX. | 12th Jul 1937 | Box 149 \ 4 scan0374 | |
| The introduction of a petrol pump in the frame for the Phantom III. | 12th Jul 1937 | Box 149 \ 4 scan0375 | |
| Introduction of a petrol pump in the frame for the Phantom III model. | 12th Jul 1937 | Box 149 \ 4 scan0376 | |
| Supply issues, failure causes, and repair procedures for S.U. Petrol Pumps. | 14th Jul 1937 | Box 149 \ 4 scan0377 | |
| Despatch of S.U. petrol pump parts and changing the charge from the Experimental Dept. to the Paris Depot. | 14th Jul 1937 | Box 149 \ 4 scan0378 | |
| Letter to the AC-Sphinx Sparking Plug Co. Ltd. enclosing a drawing for a modified AC fuel pump and requesting a sample. | 16th Jul 1937 | Box 149 \ 4 scan0379 | |
| Instructions for the operation of dual petrol pumps on a Wraith 26-G-VI chassis. | 16th Jul 1937 | Box 149 \ 4 scan0380 | |
| Request to make and supply petrol pipes for two different schemes for testing on vehicles 32-EX and 39-EX. | 2nd Aug 1937 | Box 149 \ 4 scan0381 | |
| Letter to AC-Sphinx Sparking Plug Co. Ltd. regarding the supply and testing of a sample AT type fuel pump. | 2nd Aug 1937 | Box 149 \ 4 scan0382 | |
| Instructions for centralizing the pole pieces on S.U. petrol pumps using a specific cutter and bush. | 3rd Aug 1937 | Box 149 \ 4 scan0383 | |
| Scheme to couple an HP pump to the standard double pump for customer complaint cases, including plumbing and wiring instructions. | 4th Aug 1937 | Box 149 \ 4 scan0384 | |
| Request to draw a scheme for the Wraith petrol pipe and tank. | 5th Aug 1937 | Box 149 \ 4 scan0385 | |
| Follow-up letter from H.M. Hobson asking for a report on a sample K-S Electric Gauge. | 9th Aug 1937 | Box 149 \ 4 scan0386 | |
| Request to despatch 4 sets of HP petrol pumps to Cricklewood for customer complaint cases. | 9th Aug 1937 | Box 149 \ 4 scan0387 | |
| Instructions for fitting high-pressure pumps and associated parts to existing chassis. | 9th Aug 1937 | Box 149 \ 4 scan0388 | |
| Letter to H.M. Components Ltd. advising that Mr. Dixon is on holiday and will reply upon his return. | 10th Aug 1937 | Box 149 \ 4 scan0389 | |
| Petrol starvation tests for a 32-EX Phantom III with a modified high-pressure pump arrangement. | 17th Aug 1937 | Box 149 \ 4 scan0390 | |
| Vehicle performance tests focusing on petrol starvation and acceleration issues under various conditions. | 17th Aug 1937 | Box 149 \ 4 scan0391 | |
| Vehicle performance tests under extreme temperature and high altitude conditions, detailing engine starting and boiling issues. | 20th Aug 1937 | Box 149 \ 4 scan0392 | |
| Vapour lock investigation, the merits of mechanically operated vs. electrical pumps, and flywheel inertia on overdrive models. | 20th Aug 1937 | Box 149 \ 4 scan0393 | |
| Extract from a report concerning a mechanical petrol pump's susceptibility to vapour lock. | 28th Aug 1937 | Box 149 \ 4 scan0394 | |
| S.U. pump failure on a Wraith 26.G.VI due to stiffened diaphragms after standing idle. | 31th Aug 1937 | Box 149 \ 4 scan0395 | |
| Departmental memo suggesting standard fitments for car chassis, including a tyre pump, dynamo, lifting jack, and oil syringe. | 17th Nov 1911 | Box 149 \ 5 scan0001 | |
| Proposed standard mechanical tyre pump and a previous concept for a compressed air reservoir. | 8th Jan 1912 | Box 149 \ 5 scan0002 | |
| Instruction regarding the arrangement for fitting and driving tyre pumps from a Packard car onto a chassis. | 22th Dec 1911 | Box 149 \ 5 scan0003 | |
| Minutes of a meeting discussing the fitting of a tyre pump from a Packard car to Mrs Shearman's Car 1790. | 29th Dec 1911 | Box 149 \ 5 scan0004 | |
| Fragment discussing the persuasion to fit a more suitable type of pump. | 11th Nov 1924 | Box 149 \ 5 scan0005 | |
| Performance test record for a tyre pump, noting strokes required for pressure and pump dimensions. | 25th Jan 1912 | Box 149 \ 5 scan0006 | |
| Requesting information on the maker of an Alton Tyre Pump for a customer. | 26th Feb 1912 | Box 149 \ 5 scan0007 | |
| Internal memorandum discussing the suitability and potential issues of an Atlas Tyre Pump for a customer. | 6th Mar 1912 | Box 149 \ 5 scan0008 | |
| Apology for a delay in finding the description of a pump in periodicals. | 9th Apr 1912 | Box 149 \ 5 scan0009 | |
| Test report on the performance of the Atlas Tyre Pump, recommending it for use. | 9th Apr 1912 | Box 149 \ 5 scan0010 | |
| Removal of a pump for further testing, with a handwritten follow-up instruction. | 18th Apr 1912 | Box 149 \ 5 scan0011 | |
| Extract from a report discussing the impracticality of including a complex, built-in power air pump for tyres. | 18th Apr 1912 | Box 149 \ 5 scan0012 | |
| Instructing that the provision of a suitable tyre pump for the car be added to the list of jobs. | 19th Nov 1912 | Box 149 \ 5 scan0013 | |
| Offer from A. Vermersch & Co. for a trial of a tyre inflator. | 19th Nov 1920 | Box 149 \ 5 scan0014 | |
| The supply of tyre pumps and Alemite lubricators to Rolls Royce of America. | 15th Dec 1920 | Box 149 \ 5 scan0015 | |
| Internal memorandum discussing an offer from Autyre Pumps Co. Ltd. for a mechanical tyre pump. | 13th Jan 1921 | Box 149 \ 5 scan0016 | |
| Requesting feedback and the return of papers concerning Lieut. Hampden's pump. | 1st Feb 1921 | Box 149 \ 5 scan0017 | |
| Request to Hives from DH to return a pump invented by Lieut. Hampden for review. | 16th Feb 1921 | Box 149 \ 5 scan0018 | |
| Telegram requesting the return of a pump and papers concerning Lieut Hampden. | 24th Feb 1921 | Box 149 \ 5 scan0019 | |
| Comparative testing of a Hampden Pump against a mechanical air pump designed by Mr. Royce. | 25th Feb 1921 | Box 149 \ 5 scan0020 | |
| Urgent internal memo concerning a report and the return of a pump belonging to Lieut. Geoffrey Hampden, R.N. | 26th Feb 1921 | Box 149 \ 5 scan0021 | |
| Instructing the Stores department to despatch a returned Hampden Pump. | 1st Mar 1921 | Box 149 \ 5 scan0022 | |
| Order for 'Renrut' pump connections from William Turner & Co. | 2nd Jun 1921 | Box 149 \ 5 scan0023 | |
| The despatch of a Kismet Foot Pump to the Stores department. | 20th Apr 1922 | Box 149 \ 5 scan0024 | |
| Request to compare a 'Renrut' Quadruple Air Compressor with foot pumps supplied by E.H.Hill Ltd. | 23th Jun 1922 | Box 149 \ 5 scan0025 | |
| Poor performance of the Dunlop Foot Pump compared to the currently supplied Nesthill Pump. | 23th Aug 1922 | Box 149 \ 5 scan0026 | |
| Retention of a 'Renrut' Quadruple Air Compressor and the need for a requisition. | 11th Sep 1922 | Box 149 \ 5 scan0027 | |
| Decision to keep or return a sample Falcon Foot Pump after testing. | 12th Sep 1922 | Box 149 \ 5 scan0028 | |
| Letter sending a sample Falcon Foot Pump for testing and price comparison against the currently used Dunlop pump. | 18th Aug 1922 | Box 149 \ 5 scan0029 | |
| The testing of a 'Falcon' tyre pump, concluding it is unsuitable. | 20th Sep 1922 | Box 149 \ 5 scan0030 | |
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