| Description | Date | Identifier | |
| Extract memo regarding a decision on the double thrust scheme for rear axles for cars destined for America. | 1st Jul 1921 | Box 49 \ 1 Scan346 | |
| Querying the timeline for fitting 14-tooth axles, requesting petrol consumption tests, and arranging a fitment for a demonstrator car. | 7th Jul 1921 | Box 49 \ 1 Scan347 | |
| Information on fitting 14 and 15-tooth axles to chassis. | 7th Jul 1921 | Box 49 \ 1 Scan348 | |
| Report comparing the performance of 14-tooth and 15-tooth axles for different car types. | 2nd Jul 1921 | Box 49 \ 1 Scan349 | |
| Recommending the standardisation of a 14-tooth axle to improve vehicle power and address customer complaints. | 7th Jul 1921 | Box 49 \ 1 Scan350 | |
| Requesting cost details to be added to standardisation sheets for rear axle gears. | 7th Jul 1921 | Box 49 \ 1 Scan351 | |
| Confirming arrangements for a chassis fitted with a 14-tooth axle to be in London. | 7th Jul 1921 | Box 49 \ 1 Scan352 | |
| The test results for petrol consumption using a 14-tooth axle compared to a 16-tooth axle. | 7th Jul 1921 | Box 49 \ 1 Scan353 | |
| Telegram requesting a specific open car with a fourteen-tooth axle be made available for a demonstration. | 1st Jul 1921 | Box 49 \ 1 Scan354 | |
| Arranging a demonstration car with a fourteen-tooth axle for Mr. Arthur Gibbs. | 7th Jul 1921 | Box 49 \ 1 Scan355 | |
| Cover letter for a standardisation sheet regarding rear axle gears (14 X 52). | 9th Jul 1921 | Box 49 \ 1 Scan356 | |
| Standardization of a double ball thrust for the back axle. | 11th Jul 1921 | Box 49 \ 1 Scan357 | |
| Responding to queries about the production, standardisation and performance of 14 and 15-tooth axles. | 2nd Jul 1921 | Box 49 \ 1 Scan358 | |
| Standardisation of a 14-toothed axle for different vehicle weights and suggesting alternatives for armoured cars. | 12th Jul 1921 | Box 49 \ 1 Scan359 | |
| To Mr. Hives detailing a car demonstration for Mr. Arthur Gibbs, discussing performance, design considerations, and experimental test findings on car 1.EX. | 12th Jul 1921 | Box 49 \ 1 Scan360 | |
| Agreeing to the standardisation of a 14-toothed axle and suggesting a double reduction axle for heavier armoured cars. | 12th Jul 1921 | Box 49 \ 1 Scan361 | |
| Production schedule, stock implications, and fuel consumption differences for 14-tooth versus 15-tooth axles. | 2nd Jul 1921 | Box 49 \ 1 Scan362 | |
| Letter from Hoffmann Manufacturing Co. Ltd. discussing bearing choices and thrust loads for a 40/50 chassis bevel pinion. | 14th Jul 1921 | Box 49 \ 1 Scan363 | |
| Letter from The Hoffmann Manufacturing Co., Ltd. offering bearings for a gear bench test. | 15th Jul 1921 | Box 49 \ 1 Scan364 | |
| Request to be advised when a 14-tooth axle is ready for the Trials Landaulette 1.LW. | 15th Jul 1921 | Box 49 \ 1 Scan365 | |
| Suitability of a Hoffmann journal bearing for the torque tube and propeller shaft. | 15th Jul 1921 | Box 49 \ 1 Scan366 | |
| Requesting an update on the availability of a 14 tooth axle for a Trials Landaulette ILW. | 15th Jul 1921 | Box 49 \ 1 Scan367 | |
| Fitting of a 14 x 52 tooth axle before the annual works holiday closure. | 18th Jul 1921 | Box 49 \ 1 Scan368 | |
| Approval to change the 40/50 HP rear axle pinion thrust to a recently standardised double thrust pattern. | 19th Jul 1921 | Box 49 \ 1 Scan369 | |
| Report from America responding to points on 15 Tooth Axles, Rear Axle Roller Lubricators, and Air Valve Covers. | 18th Jul 1921 | Box 49 \ 1 Scan370 | |
| Letter from The Hoffmann Manufacturing Co., Ltd. regarding a ball bearing for a torque tube and propeller shaft. | 18th Jul 1921 | Box 49 \ 1 Scan371 | |
| Best way to demonstrate a car's superiority over a Cadillac for a Mr. Dugdale. | 18th Jul 1921 | Box 49 \ 1 Scan372 | |
| Note on using alcohol in radiators and a comparison of top speed with a Cadillac, suggesting American speedometers are inaccurate. | 18th Jul 1921 | Box 49 \ 1 Scan373 | |
| Forwarding a reply from the Hoffmann Manufacturing Company regarding the thrust of a Gleason type bevel pinion and its associated loads. | 19th Jul 1921 | Box 49 \ 1 Scan374 | |
| Cover note for a letter from Springfield concerning Gleason Gears. | 20th Jul 1921 | Box 49 \ 1 Scan375 | |
| Cover note regarding a copy of a letter from Springfield about Gleason gears. | 20th Jul 1921 | Box 49 \ 1 Scan376 | |
| Mr. Dugdale's new car and a performance comparison with a Cadillac. | 21th Jul 1921 | Box 49 \ 1 Scan377 | |
| Confirming the arrangement to fit a fourteen-tooth axle to chassis No:1-LW. | 21th Jul 1921 | Box 49 \ 1 Scan378 | |
| Request for remarks on the standardisation sheet for rear axle gears 14 x 52. | 21th Jul 1921 | Box 49 \ 1 Scan379 | |
| Extract of a document discussing pinion gear selection for cars of varying weights, specifically for the USA market. | 22th Jul 1921 | Box 49 \ 1 Scan380 | |
| Extract discussing a new standard double thrust for the Gleason bevel gear and the conversion of existing cars. | 22th Jul 1921 | Box 49 \ 1 Scan381 | |
| Extract discussing pinion gearing choices for different weight cars, specifically concerning the US market. | 22th Jul 1921 | Box 49 \ 1 Scan382 | |
| Inter-office correspondence regarding issues with ball and thrust bearing designs on bevel pinions. | 4th Aug 1921 | Box 49 \ 2 Scan001 | |
| Design of bearings and housings, addressing issues with threaded caps and proposing alternative manufacturing schemes. | 9th Aug 1921 | Box 49 \ 2 Scan002 | |
| The failure of a rear axle pinion thrust bearing and a request for the Works Committee to consider action. | 9th Aug 1921 | Box 49 \ 2 Scan003 | |
| Inquiry regarding the readiness of a 14 tooth axle for a I LW Trials Landaulette. | 10th Aug 1921 | Box 49 \ 2 Scan004 | |
| Confirming a 14-tooth axle for a Trials Landaulet is ready for fitting in Derby. | 12th Aug 1921 | Box 49 \ 2 Scan005 | |
| Typed memo detailing opinions on the use of brazing for brake brackets on the rear axle. | 19th Aug 1921 | Box 49 \ 2 Scan006 | |
| Cover memo requesting review and sign-off for a standardisation sheet on Rear Axle Gears 14 X 52. | 1st Aug 1921 | Box 49 \ 2 Scan007 | |
| Failure of a 4-EX axle and proposing modifications to the brake shaft positions. | 14th Sep 1917 | Box 49 \ 2 Scan008 | |
| Instruction note regarding the mileage of a back axle on a demonstration car. | 14th Sep 1917 | Box 49 \ 2 Scan009 | |
| The delay in sending drawings and standardisation sheets for a 14/52 back axle ratio to Springfield. | 25th Aug 1921 | Box 49 \ 2 Scan010 | |
| Requesting the dispatch of drawings and standardisation sheets for a 14/52 back axle ratio to the Springfield plant. | 24th Aug 1921 | Box 49 \ 2 Scan011 | |
| Confirmation of a telegram telephoned to Chichester regarding a Goshawk two gear box. | 31th Aug 1921 | Box 49 \ 2 Scan012 | |
| Internal memorandum regarding a standardisation sheet for Rear Axle Gears, 14 X 52. | 31th Aug 1921 | Box 49 \ 2 Scan013 | |
| Standardisation of chassis parts, specifically rear axle gears (14 x 52) for cars with heavy bodies. | 7th Jul 1921 | Box 49 \ 2 Scan014 | |
| Potential cause for a 'clapping' sound from the back axle, suggesting side play in controlling springs or rollers. | 31th Aug 1921 | Box 49 \ 2 Scan015 | |
| Telegram received by telephone with an urgent request to wire about a despatched axle. | 2nd Sep 1921 | Box 49 \ 2 Scan016 | |
| From Hives to Northey regarding the dispatch of a fourteen-tooth axle to London. | 2nd Sep 1921 | Box 49 \ 2 Scan017 | |
| Post Office Telegraph form with a handwritten urgent message. | 18th Jul 1918 | Box 49 \ 2 Scan018 | |
| List of parts and details for the Goshawk I (1st Experiment) Rear Axle. | 5th Sep 1921 | Box 49 \ 2 Scan019 | |
| Continuation sheet of a parts list for a rear axle assembly, with reference to the 'Goshawk II' project. | 5th Sep 1921 | Box 49 \ 2 Scan020 | |
| Continuation of a parts list for a vehicle's axle and differential assembly. | 5th Sep 1921 | Box 49 \ 2 Scan021 | |
| Continued list of part numbers for various nuts and bolts for the axle tube, gear box, and tie rod. | 5th Sep 1921 | Box 49 \ 2 Scan022 | |
| Sending a rear axle with a 14-tooth pinion to London for a Landaulet Trials Car. | 1st Sep 1921 | Box 49 \ 2 Scan023 | |
| Telegram received by telephone regarding the urgent dispatch of an axle. | 9th Sep 1921 | Box 49 \ 2 Scan024 | |
| Modification scheme for the Gleason bevel pinion thrust bearing taken on the journal bearing. | 9th Sep 1921 | Box 49 \ 2 Scan025 | |
| Testing various axle journal and thrust bearing modifications and recommendations for future designs. | 17th Sep 1921 | Box 49 \ 2 Scan026 | |
| Continued memo discussing wear on thrust washers and the challenges of axle lubrication. | 17th Sep 1921 | Box 49 \ 2 Scan027 | |
| Modification to the rear axle and the attached standardisation sheet. | 19th Sep 1921 | Box 49 \ 2 Scan028 | |
| Request to fill in costs on a standardisation sheet for an experimental modification to the rear axle. | 20th Sep 1921 | Box 49 \ 2 Scan029 | |
| Works order for a 14-tooth pinion rear axle to be fitted to the Landaulet Trials Car. | 8th Sep 1921 | Box 49 \ 2 Scan030 | |
| Calculated pressure on the pinion ball thrust for a 40/50 chassis. | 30th Sep 1921 | Box 49 \ 2 Scan031 | |
| The testing of bevel pinion thrust bearings on a 40/50 axle. | 30th Sep 1921 | Box 49 \ 2 Scan032 | |
| The ongoing testing of thrust bearings and proposed modifications following gearbox failures. | 30th Sep 1921 | Box 49 \ 2 Scan033 | |
| Pressure on the pinion ball thrust for a 40/50 chassis. | 30th Sep 1921 | Box 49 \ 2 Scan034 | |
| Modification to the rear axle, requesting review of an attached standardisation sheet. | 3rd Oct 1921 | Box 49 \ 2 Scan035 | |
| Modification to the rear axle and an attached standardisation sheet for review. | 4th Oct 1921 | Box 49 \ 2 Scan036 | |
| Recommendation to key the thrust washer for the rear axle pinion and to limit clearance in the Goshawk steering column to prevent rattling. | 10th Oct 1921 | Box 49 \ 2 Scan037 | |
| Modification to the thrust washer keyway for the Goshawk 11 rear axle. | 6th Oct 1921 | Box 49 \ 2 Scan038 | |
| Attaching a completed standardisation sheet for a modification to a rear axle. | 20th Oct 1921 | Box 49 \ 2 Scan039 | |
| Standardisation proposal for modifying the rear axle journal bearing to handle reverse thrust from the Gleason Bevel Pinion due to failures on customer cars. | 19th Sep 1921 | Box 49 \ 2 Scan040 | |
| Suitability of Michell thrust bearings and recommending alternative 'deep race' or 'New Departure' types for high-speed use. | 27th Oct 1921 | Box 49 \ 2 Scan041 | |
| Letter to the Managing Director concerning the testing and implementation of a bevel thrust bearing. | 16th Nov 1921 | Box 49 \ 2 Scan042 | |
| Evaluation of various bearing designs, including pinion journal and double row types, based on road test performance. | 16th Nov 1921 | Box 49 \ 2 Scan043 | |
| Proposal for a new bearing scheme to reduce manufacturing costs, fitting costs, and unsprung weight. | 16th Nov 1921 | Box 49 \ 2 Scan044 | |
| Query regarding an oil leak from the Goshawk 11 back axle. | 15th Nov 1921 | Box 49 \ 2 Scan045 | |
| Report concerning a leak from the Goshawk 11 rear axle that occurs when the vehicle is stationary. | 17th Nov 1921 | Box 49 \ 2 Scan046 | |
| Telegraph confirmation regarding an urgent request for the despatch status of an axle. | 15th Jan 1926 | Box 49 \ 2 Scan047 | |
| Mr Royce's enquiry for banjo type axles and arranging for a sample to be sent for his inspection. | 18th Nov 1921 | Box 49 \ 2 Scan048 | |
| The examination and wear of an improved reverse thrust method for the back axle pinion. | 2nd Dec 1921 | Box 49 \ 2 Scan049 | |
| The chassis gear ratios for the Goshawk 11. | 5th Dec 1921 | Box 49 \ 2 Scan050 | |
| Production hold-ups and design changes for the Goshawk 11 rear axle, hub, and brake. | 17th Jan 1922 | Box 49 \ 2 Scan051 | |
| Comparison of the diameters of Dunlop cord beaded and straight-sided tyres and the negligible effect on gear ratio. | 27th Jan 1922 | Box 49 \ 2 Scan052 | |
| Requesting feedback on shock absorbers, a carburettor, and a 14-tooth axle, and discussing upcoming car deliveries. | 1st Feb 1922 | Box 49 \ 2 Scan053 | |
| Test programme for an open touring car with a 14-tooth axle to compare the effects of high and low compression. | 4th Feb 1922 | Box 49 \ 2 Scan054 | |
| The arrangement of special compression and gear ratio tests on various cars, including the Goshawk model. | 6th Feb 1922 | Box 49 \ 2 Scan055 | |
| Gearing for the Goshawk back axle, specifically the crown wheel and pinion options. | 15th Feb 1922 | Box 49 \ 2 Scan056 | |
| Instructions detailing axle and pivot inclination for the 40/50 and Goshawk II chassis. | 20th Feb 1922 | Box 49 \ 2 Scan057 | |
| Inter-office letter requesting a layout and experimental results for a proposed three-speed gearbox for the 40/50 model. | 23th Feb 1922 | Box 49 \ 2 Scan058 | |
| With extracts from Mr. Northey's letter regarding 14 tooth axles and travel plans. | 27th Feb 1922 | Box 49 \ 2 Scan059 | |
| Assessment of 14-tooth axles for touring in France, noting their performance on hilly terrain. | 7th Feb 1922 | Box 49 \ 2 Scan060 | |
| Noisy axle, engine vibration, and potential magneto upgrades for a Trials Landaulet car. | 8th Mar 1922 | Box 49 \ 2 Scan061 | |
| The standardisation of 14-tooth axles on closed cars, pending Mr. Royce's approval due to his concerns about potential engine wear. | 16th Mar 1922 | Box 49 \ 2 Scan062 | |
| Lateral adjustment of a pinion on Gleason gears, with diagrams. | 16th Mar 1922 | Box 49 \ 2 Scan063 | |
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