| Description | Date | Identifier | |
| Instruction regarding the modification of Bentley front aluminium brake drums. | 10th Jul 1936 | Box 85 \ 1 scan0138 | |
| Specifications and production of Bentley Aluminium Brake Drums. | 17th Jul 1936 | Box 85 \ 1 scan0139 | |
| Complexity and proposed solution for Bentley brake judder issues. | 27th Jul 1936 | Box 85 \ 1 scan0140 | |
| The investigation into front brake dry judders, with specific reference to Bentley vehicles. | 27th Jul 1936 | Box 85 \ 1 scan0141 | |
| Analysis of brake/clutch judder, featuring a friction characteristic graph for Ferodo MR against Millenite. | 20th Jul 1936 | Box 85 \ 1 scan0142 | |
| Brake oscillation, pressure variation, and the mechanics of anti-judder brake systems. | 27th Jul 1936 | Box 85 \ 1 scan0143 | |
| Experiments conducted on a Bentley standard brake servo scheme to address judder and thump issues. | 27th Jul 1936 | Box 85 \ 1 scan0144 | |
| Resolving brake judder by reducing the angle of the Ferodo brake lining from 130° to 90°. | 27th Jul 1936 | Box 85 \ 1 scan0145 | |
| Analysis of brake judder, focusing on friction linings, temperature effects, and tests on various chassis. | 20th Jul 1936 | Box 85 \ 1 scan0146 | |
| Experiments to investigate car juddering by adding weights to the adjusting nut and reversing the front brake operation. | 20th Jul 1936 | Box 85 \ 1 scan0147 | |
| Page detailing two different schemes for a brake toggle shaft, including blueprint sketches. | 27th Jul 1936 | Box 85 \ 1 scan0148 | |
| Graph comparing the efficiency of various Bentley brake mechanisms. | 20th Jul 1936 | Box 85 \ 1 scan0149 | |
| Design scheme (N.Sch.4798) for a toggle shaft mechanism that juddered, and a subsequent experiment that did not. | 20th Jul 1936 | Box 85 \ 1 scan0150 | |
| Experimental notes and diagrams comparing a mechanical system with and without a balancer lever. | 27th Jul 1936 | Box 85 \ 1 scan0151 | |
| Page discussing an attempt to eliminate judders by balancing the rotational inertia of a toggle shaft, including a related diagram. | 27th Jul 1936 | Box 85 \ 1 scan0152 | |
| Report page detailing experiments to prevent juddering, with an accompanying blueprint diagram of a rotating part. | 27th Jul 1936 | Box 85 \ 1 scan0153 | |
| Report with a diagram detailing an experiment to increase inertia in a mechanism to reduce juddering. | 27th Jul 1936 | Box 85 \ 1 scan0154 | |
| Analysis of brake mechanism experiments and linkage designs to cure brake judder. | 27th Jul 1936 | Box 85 \ 1 scan0155 | |
| Proposed balancer lever scheme with a blueprint diagram, intended as a simple conversion for existing cars. | 27th Jul 1936 | Box 85 \ 1 scan0156 | |
| Modifications and testing of a balancer weight to eliminate judders and thumps, including a related sketch. | 27th Jul 1936 | Box 85 \ 1 scan0157 | |
| Future car designs, focusing on independent front suspension and potential brake judder issues. | 27th Jul 1936 | Box 85 \ 1 scan0158 | |
| Confirming a telephone conversation to arrange an investigation by Martindale. | 28th Jul 1936 | Box 85 \ 1 scan0159 | |
| Customer complaint letter from Mr. Stanley Ballantine regarding a severe wheel wobble and vibration issue when braking. | 29th Jul 1936 | Box 85 \ 1 scan0160 | |
| Customer complaint letter detailing a dangerous braking defect that causes the car to swerve. | 30th Jul 1936 | Box 85 \ 1 scan0161 | |
| Customer's complaint of car judder, arranging repairs in Derby and the provision of a loaner vehicle. | 30th Jul 1936 | Box 85 \ 1 scan0162 | |
| Bentley brake judder issues, discussing potential solutions for existing cars and future production models. | 30th Jul 1936 | Box 85 \ 1 scan0163 | |
| Serious problem concerning Bentley cars and the potential negative impact on sales. | 30th Jul 1936 | Box 85 \ 1 scan0164 | |
| Urgent requirement for parts to address Bentley brake judders. | 31th Jul 1936 | Box 85 \ 1 scan0165 | |
| Request to fit an anti-judder mechanism to a Bentley bumper chassis. | 4th Aug 1936 | Box 85 \ 1 scan0166 | |
| Requesting the dispatch of an axle and brake mechanism to the Repair Department in Derby. | 4th Aug 1936 | Box 85 \ 1 scan0167 | |
| Distributing blueprints for revised front brake inertia balancer parts for the Bentley chassis. | 4th Aug 1936 | Box 85 \ 1 scan0168 | |
| Parts for a revised front brake inertia balancer on a Bentley chassis to address customer complaints of juddering. | 3rd Aug 1936 | Box 85 \ 1 scan0169 | |
| List of parts being replaced, with new and additional parts also listed. | 3rd Aug 1936 | Box 85 \ 1 scan0170 | |
| Two schemes for eliminating brake judders on Bentley front brakes. | 5th Aug 1936 | Box 85 \ 1 scan0171 | |
| The despatch of a front axle for chassis B.22.DG, belonging to Mr. R.K. Pierson. | 6th Aug 1936 | Box 85 \ 1 scan0172 | |
| Front brake and axle modifications for car B-23-AE. | 10th Aug 1936 | Box 85 \ 1 scan0173 | |
| New scheme to address Bentley brake judder issues using castings instead of forgings. | 10th Aug 1936 | Box 85 \ 1 scan0174 | |
| Production and fitting of a simpler, less costly design for Bentley anti-judder brake parts. | 10th Aug 1936 | Box 85 \ 1 scan0175 | |
| Requesting a new front axle be sent to the Experimental Dept and to transfer the associated charge. | 11th Aug 1936 | Box 85 \ 1 scan0176 | |
| Parts supplied for Bentley brake judder issues. | 12th Aug 1936 | Box 85 \ 1 scan0177 | |
| The parts required to make a dozen sets of Bentley Aluminium Brake Drums for trial cars. | 19th Aug 1936 | Box 85 \ 1 scan0178 | |
| Investigating a complaint about brake shoe bushes on a Bentley car, recommending a material change to nickel steel. | 21th Aug 1936 | Box 85 \ 1 scan0179 | |
| Page 2 of a document discussing an increase on the diameter of a bush, with handwritten notes and a signature. | 21th Aug 1936 | Box 85 \ 1 scan0180 | |
| Production of an inertia balancing device to correct Bentley front brake judder. | 21th Aug 1936 | Box 85 \ 1 scan0181 | |
| Request for an update on materials to attend to front brake judders on Bentleys. | 19th Aug 1936 | Box 85 \ 1 scan0182 | |
| The standardization and production of an Anti-Judder Mechanism. | 24th Aug 1936 | Box 85 \ 1 scan0183 | |
| Scheme for the rear brake actuating shaft on a Bentley chassis. | 24th May 1936 | Box 85 \ 1 scan0184 | |
| Two schemes for curing 'brake jaggers' on a Bentley, recommending one but requesting further tests. | 24th Aug 1936 | Box 85 \ 1 scan0185 | |
| Urgent need for parts to address customer complaints about front brake judders on Bentley chassis. | 25th Aug 1936 | Box 85 \ 1 scan0186 | |
| Parts list for revised front brakes with an inertia balancer on a Bentley chassis, intended to resolve customer complaints of juddering. | 4th Aug 1936 | Box 85 \ 1 scan0187 | |
| Secret internal memorandum discussing a solution to a serious braking problem, 'brake jaggers', on the Bentley. | 21th Aug 1936 | Box 85 \ 1 scan0188 | |
| Instruction to modify the mud excluder to fix oil leaking on the front brakes. | 21th Aug 1936 | Box 85 \ 1 scan0189 | |
| Implementation and testing of a bob weight balancer for brake jaggers on Bentley cars. | 25th Aug 1936 | Box 85 \ 1 scan0190 | |
| Ordering parts and sending modification instructions for an inertia balancer to address urgent brake complaints on Bentley vehicles. | 26th Aug 1936 | Box 85 \ 1 scan0191 | |
| The production and testing of Brake Jaggers for Bentley vehicles. | 26th Aug 1936 | Box 85 \ 1 scan0192 | |
| Phantom III chassis front brakes and the use of 'Heldite' sealant on joints. | 31th Aug 1936 | Box 85 \ 1 scan0193 | |
| Inquiring about the delivery time for a set of Aluminium Bentley drums for Mr. Raymond Mays' car. | 1st Sep 1936 | Box 85 \ 1 scan0194 | |
| Requesting the fitment of an anti-judder set to a front axle using standard iron brake drums due to a shortage of aluminium ones. | 2nd Sep 1936 | Box 85 \ 1 scan0195 | |
| The machining of two Bentley rear aluminium drums to a specific drawing. | 2nd Sep 1936 | Box 85 \ 1 scan0196 | |
| Letter to a supplier requesting various wheel and master cylinder samples for evaluation. | 1st Sep 1936 | Box 85 \ 1 scan0197 | |
| Letter to Automotive Products Co. Ltd. regarding an unsuitable wheel cylinder and requesting a replacement sample. | 4th Sep 1936 | Box 85 \ 1 scan0198 | |
| Testing and standardisation of a bob-weight scheme to prevent brake judder on Bentley cars. | 10th Sep 1936 | Box 85 \ 1 scan0199 | |
| Bob weight scheme to prevent brake judders on a Bentley, requesting the issue of standardisation sheets. | 11th Sep 1936 | Box 85 \ 1 scan0200 | |
| Modification to the Phantom III front brake bell crank lever to deal with a clamping bolt fouling issue. | 15th Sep 1936 | Box 85 \ 1 scan0201 | |
| Modification to the Phantom III hand brake equaliser support bracket and pin. | 17th Sep 1936 | Box 85 \ 1 scan0202 | |
| Request for one pair of Bentley front aluminium drums with specific instructions for their construction. | 23th Sep 1936 | Box 85 \ 1 scan0203 | |
| Brake costs and proposing the adoption of a lighter, cheaper Girling brake system to save weight and money. | 25th Sep 1936 | Box 85 \ 1 scan0204 | |
| Standardization of modifications to Bentley brakes, specifically an anti-judder scheme and aluminium drums. | 25th Sep 1936 | Box 85 \ 1 scan0205 | |
| Cost breakdown and comparison for Bentley brake systems. | 25th Sep 1936 | Box 85 \ 1 scan0206 | |
| Line drawing illustrating the steering and brake linkage system. | 1st Oct 1936 | Box 85 \ 1 scan0207 | |
| Confirming the completion of a set of light alloy aluminium brake drums for Raymond Mays' car. | 1st Oct 1936 | Box 85 \ 1 scan0209 | |
| Attaching a letter about materials for brake drum liners and composite drums. | 2nd Oct 1936 | Box 85 \ 1 scan0210 | |
| Letter from The British Piston Ring Co. Ltd. suggesting 'Bricromium' centrifugally cast iron for brake drum liners. | 16th Sep 1936 | Box 85 \ 1 scan0211 | |
| Letter to The British Piston Ring Co. Ltd. regarding the materials and casting methods for brake drum liners. | 5th Oct 1936 | Box 85 \ 1 scan0212 | |
| Design of the Bentley III independent suspension front brakes. | 5th Oct 1936 | Box 85 \ 1 scan0213 | |
| Standardisation of parts report for a front brakes inertia balancer, also known as a bob weight scheme. | 26th Sep 1936 | Box 85 \ 1 scan0214 | |
| Estimate for the cost of extra Jigs, Tools and Equipment and the production timeline for the 'J' Series chassis. | 22th Sep 1936 | Box 85 \ 1 scan0215 | |
| The preparation and distribution of Bentley Aluminium Brake Drums. | 12th Oct 1936 | Box 85 \ 1 scan0216 | |
| Manufacturing process and interference fit specifications for aluminium brake drums. | 19th Oct 1936 | Box 85 \ 1 scan0217 | |
| Production process for sorting, pairing, and measuring engine liners and drums. | 19th Oct 1936 | Box 85 \ 1 scan0218 | |
| Brake inefficiency, servo linings, and rattles from hydraulic dampers. | 26th Oct 1936 | Box 85 \ 1 scan0219 | |
| Letter from The British Piston Ring Co Ltd regarding test results for 'Bricromium' brake drum liners. | 9th Oct 1936 | Box 85 \ 1 scan0220 | |
| Letter from The British Piston Ring Co. detailing test results for brake drum liners. | 9th Oct 1936 | Box 85 \ 1 scan0221 | |
| Customer complaints about Bentley brakes and proposing improvements to reduce overheating and noise. | 26th Oct 1936 | Box 85 \ 1 scan0222 | |
| Preparation and fitting of a set of aluminium Bentley brake drums. | 26th Oct 1936 | Box 85 \ 1 scan0223 | |
| Requesting parts including aluminium drums and hubs for the Raymond Mays Bentley car. | 28th Oct 1936 | Box 85 \ 1 scan0224 | |
| The conversion of Raymond Mays's Bentley to aluminium brake drums due to complaints of brake fade. | 28th Oct 1936 | Box 85 \ 1 scan0225 | |
| Letter from British Wire Products Limited regarding flexible cable controls and the provision of custom samples. | 30th Oct 1936 | Box 85 \ 1 scan0226 | |
| Crackling sounds from aluminium brake drums on Bentley and Wraith models due to liner roughness. | 31th Oct 1936 | Box 85 \ 1 scan0227 | |
| Instructions for salvaging scored Bentley Aluminium Drums from car 6-B-IV. | 31th Oct 1936 | Box 85 \ 1 scan0228 | |
| Price quotation for brake drum liners from Laystall Motor Engineering Works Ltd. | 31th Oct 1936 | Box 85 \ 1 scan0229 | |
| Letter to Hawker Aircraft Ltd regarding a drawing for an airscrew, with a pinned handwritten memo comparing the cost of Hillman axles. | 30th Mar 1936 | Box 85 \ 1 scan0230 | |
| Letter to Birmingham Aluminium Casting Co., Ltd. regarding the incorrect heat treatment of RR.53 alloy drums. | 3rd Nov 1936 | Box 85 \ 1 scan0231 | |
| Letter to Messrs. Lake & Elliot regarding the performance and scoring of Millenite brake drum liners after a 15,000-mile test. | 5th Nov 1936 | Box 85 \ 1 scan0232 | |
| Letter to Laystall Motor Engineering Works regarding a quotation and issues with brake drum liners. | 5th Nov 1936 | Box 85 \ 1 scan0233 | |
| Letter discussing the decision not to experiment with a nitrided liner due to its high price. | 5th Nov 1936 | Box 85 \ 1 scan0234 | |
| The release of a standardisation sheet for Bentley brake drums with an anti-judder scheme. | 5th Nov 1936 | Box 85 \ 1 scan0235 | |
| Drawing showing increased rib height on Bentley rear brake drums and the issuing of standardisation sheets. | 6th Nov 1936 | Box 85 \ 1 scan0236 | |
| Letter from a supplier quoting prices for manufacturing and fitting carbon steel liners. | 7th Nov 1936 | Box 85 \ 1 scan0237 | |
| Letter requesting quotations for manufacturing a liner for a Bentley Aluminium drum. | 9th Nov 1936 | Box 85 \ 1 scan0238 | |
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