| Description | Date | Identifier | |
| Standardisation of Bentley brake linings and servo cams. | 4th Jun 1937 | Box 85 \ 1 scan0339 | |
| Brake squeaks on Bentley cars, detailing a change to Ferodo B.Z. brake linings and altering servo cam angles. | 10th Jun 1937 | Box 85 \ 1 scan0340 | |
| Tensometer test results for brake drums in RR.53C following various heat treatments. | 16th Jun 1937 | Box 85 \ 1 scan0341 | |
| Brake squeaks on Bentley cars and the fitting of anti-judder levers. | 22th Jun 1937 | Box 85 \ 1 scan0342 | |
| Unsatisfactory stopping distance of Bentley brakes. | 7th Jul 1937 | Box 85 \ 1 scan0343 | |
| Bentley stopping distances and refuting figures from 'Autocar' magazine. | 9th Jul 1937 | Box 85 \ 1 scan0344 | |
| Controversy around a Bentley's stopping distance and the implications of altering the front braking. | 19th Jul 1937 | Box 85 \ 1 scan0345 | |
| Objections to increasing front braking on Bentley cars due to safety concerns with wheel lock-up. | 23th Jul 1937 | Box 85 \ 1 scan0346 | |
| The fitting of stiffer brake toggles and the use of 'Keenol' grease for Bentley and Wraith models. | 3rd Aug 1937 | Box 85 \ 1 scan0347 | |
| Standardisation of parts document for Ferodo BZ brake linings to reduce squeaking. | 4th Jun 1937 | Box 85 \ 1 scan0348 | |
| Cost assessment for introducing a part to the 'M' Series chassis production. | 24th Aug 1937 | Box 85 \ 1 scan0349 | |
| Decision to fit all 4 1/4 litre Bentleys with front brake inertia balancers. | 24th Aug 1937 | Box 85 \ 1 scan0350 | |
| Behaviour of brakes with iron drums versus aluminium shoes and proposing an experiment on a Bentley 11.A. | 28th Aug 1937 | Box 85 \ 1 scan0351 | |
| The modification of 4¼ Litre Bentley chassis with an anti-jagger device for the front brakes. | 30th Aug 1937 | Box 85 \ 1 scan0352 | |
| Relining of Bentley brakes, recommending Ferodo BZ material and associated parts. | 2nd Sep 1937 | Box 85 \ 1 scan0353 | |
| Retrospective fitting of an Anti-Jagger device for the front brakes of 4 1/4 Litre Bentley chassis. | 1st Sep 1937 | Box 85 \ 1 scan0354 | |
| Supply strategy for an anti-jagger device for the front brakes of the 4¼-Litre Bentley. | 2nd Sep 1937 | Box 85 \ 1 scan0355 | |
| Application of an iron brake drum with a steel back plate for Girling rear brakes on a Bentley 11.A model. | 8th Sep 1937 | Box 85 \ 1 scan0356 | |
| Examination of the front brake equaliser on a J series Bentley car. | 22th Sep 1937 | Box 85 \ 1 scan0357 | |
| Fitting a Bentley rear axle and testing iron brake drums for the Wraith model. | 2nd Oct 1937 | Box 85 \ 1 scan0358 | |
| Standardisation of an improved lubrication scheme for brake torsion shafts on the rear axle. | 7th Sep 1937 | Box 85 \ 1 scan0359 | |
| Cost-benefit analysis for introducing Bijur Lubrication on the 'M' Series chassis. | 12th Jan 1931 | Box 85 \ 1 scan0360 | |
| Modification to the clearance of Bentley rear brakes to prevent seizing. | 18th Oct 1937 | Box 85 \ 1 scan0361 | |
| Modifications to car I.B.IV's brake system to return it to standard specification before sale. | 20th Oct 1937 | Box 85 \ 1 scan0362 | |
| Modifications to the rear brakes for the Bentley 11.A model. | 20th Oct 1937 | Box 85 \ 1 scan0363 | |
| Fitting of B/Z brake linings to Bentley cars in cases of complaints of squeaks. | 26th Oct 1937 | Box 85 \ 1 scan0364 | |
| Weight saving calculations for the Bentley IIA brake systems. | 28th Oct 1937 | Box 85 \ 1 scan0365 | |
| Modifications to Girling type rear brakes for Bentley models 114 and 111. | 29th Oct 1937 | Box 85 \ 1 scan0366 | |
| Accepting changes to the material and fabrication method for two Bentley II.A. Chassis parts. | 4th Nov 1937 | Box 85 \ 1 scan0367 | |
| Requesting the production of a bracket and operating lever for a Bentley II.A. Chassis. | 5th Nov 1937 | Box 85 \ 1 scan0368 | |
| Cancelling instructions for Bentley II rear brake parts and arranging for storage of existing castings. | 11th Nov 1937 | Box 85 \ 1 scan0369 | |
| Letter from Harold B. Mead regarding a self-energising brake invention with pending Letters Patent. | 12th Nov 1937 | Box 85 \ 1 scan0370 | |
| Description of a self-energising brake system (Patent Pending) by Harold B. Mead. | 12th Nov 1937 | Box 85 \ 1 scan0371 | |
| Continuation of a technical description for a self-energising brake system. | 29th Nov 1937 | Box 85 \ 1 scan0372 | |
| Modifications to the Girling Adjuster Unit for Bentley 11A and 111 front and rear brakes. | 29th Nov 1937 | Box 85 \ 1 scan0373 | |
| Necessity of fitting a stone guard to the Bentley rear foot brake equalizer. | 16th Dec 1937 | Box 85 \ 1 scan0374 | |
| The decision on brakes for the Bentley 'M' series cars. | 19th Jan 1938 | Box 85 \ 1 scan0375 | |
| Letter to Dunlop Rubber Co. regarding stopping distance tests for a Bentley and other tyres. | 19th Jan 1938 | Box 85 \ 1 scan0376 | |
| Letter from Dunlop discussing tyre moulds and suitable production tyres for testing. | 20th Jan 1938 | Box 85 \ 1 scan0377 | |
| Letter from Dunlop Rubber Co. Ltd. concerning arrangements for tyre testing. | 31th Jan 1938 | Box 85 \ 1 scan0378 | |
| Letter to Dunlop Rubber Co. arranging a visit for wet track testing. | 1st Feb 1938 | Box 85 \ 1 scan0379 | |
| Proposed solution for inefficient brakes on Bentley & 25/30 HP models by changing levers. | 2nd Feb 1938 | Box 85 \ 1 scan0380 | |
| Note on adjusting pedal leverage to lighten pressure. | 2nd Feb 1938 | Box 85 \ 1 scan0381 | |
| Requesting to hold up parts for the rear brakes of the Bentley 'M' Series 2nd 100 chassis. | 3rd Feb 1938 | Box 85 \ 1 scan0382 | |
| Letter from Dunlop Rubber Co. Ltd. regarding a delay in skid track test results for a 4 1/4 Litre Saloon. | 7th Feb 1938 | Box 85 \ 1 scan0383 | |
| Letter from Dunlop Rubber Co. Ltd. regarding results from tyre braking tests. | 14th Feb 1938 | Box 85 \ 1 scan0384 | |
| Skidding tests performed on a Bentley with various tyres on a wet track. | 9th Feb 1938 | Box 85 \ 1 scan0385 | |
| Results of brake testing, comparing pattern performance and stopping distances. | 9th Feb 1938 | Box 85 \ 1 scan0386 | |
| Three graphs showing deceleration/time curves from tests. | 9th Feb 1938 | Box 85 \ 1 scan0387 | |
| Deceleration/time curve graph from a test, with handwritten notes. | 9th Feb 1938 | Box 85 \ 1 scan0388 | |
| Comparison graphs of acceleration over time for India Tyres and Dunlop 'C' tyres during locked-rear-wheel tests on a 42.38 Bentley. | 11th Feb 1938 | Box 85 \ 1 scan0389 | |
| Graphs of representative deceleration/time curves for different wheel locking scenarios on a Bentley and another car. | 9th Feb 1938 | Box 85 \ 1 scan0390 | |
| Velocity and space diagrams for a braking test on a Bentley with locked rear wheels. | 11th Feb 1938 | Box 85 \ 1 scan0391 | |
| Velocity and Distance/Time charts from a braking test on a Bentley with locked rear wheels. | 11th Feb 1936 | Box 85 \ 1 scan0392 | |
| Speed and distance over time graphs for a braking test on a Bentley with locked rear wheels and Dunlop tyres. | 9th Feb 1939 | Box 85 \ 1 scan0393 | |
| Graphs showing speed and distance versus time for a car with all four wheels locked during braking. | 9th Feb 1928 | Box 85 \ 1 scan0394 | |
| Graphs of velocity and distance versus time from Special Test No. 1 conducted by an R.R.C° Driver. | 9th Feb 1938 | Box 85 \ 1 scan0395 | |
| Two graphs showing velocity (fps) and distance (ft) versus time (secs) for Special Test No. 2. | 9th Feb 1938 | Box 85 \ 1 scan0396 | |
| Two graphs showing velocity vs. time and distance vs. time for 'Spec Test No. 3'. | 9th Feb 1938 | Box 85 \ 1 scan0397 | |
| Graph from Spec Test No. 4 showing velocity (V fps) and distance (S ft) over time (SECS) for a driver component. | 9th Feb 1938 | Box 85 \ 1 scan0398 | |
| Order for six Girling brake expander units for a Bentley II. | 14th Feb 1938 | Box 85 \ 1 scan0399 | |
| Frequent brake leverage changes and a recommendation to install a cross member stiffener. | 16th Feb 1938 | Box 85 \ 1 scan0400 | |
| The introduction of Girling rear brakes on the Bentley II.A chassis. | 19th Feb 1938 | Box 85 \ 1 scan0401 | |
| Modification to the Expander Housing on Bentley rear brakes. | 22th Feb 1938 | Box 85 \ 1 scan0402 | |
| Proposal to standardise Girling Brakes for the Bentley II.A model. | 25th Feb 1938 | Box 85 \ 1 scan0403 | |
| Technical memo detailing the specifications and modifications for Bentley II.A. rear brakes. | 1st Mar 1938 | Box 85 \ 1 scan0404 | |
| Specifications for front equalizer levers and sourcing parts from a non-servo brake set-up for a model car. | 1st Mar 1938 | Box 85 \ 1 scan0405 | |
| Leverage specifications for the Bentley Girling brakes on the 'M' series. | 14th Mar 1938 | Box 85 \ 1 scan0406 | |
| Request to make two Bentley plate brake levers according to dimensions on print Rm. 509. | 30th Mar 1938 | Box 85 \ 1 scan0407 | |
| Assembly difficulties of the Bentley IIA Rear Equalizer. | 13th Apr 1938 | Box 85 \ 1 scan0408 | |
| Internal memorandum detailing recommended modifications for the Girling brakes on the Bentley II M Series. | 23th Apr 1938 | Box 85 \ 1 scan0409 | |
| Parts list regarding the installation of Bentley 50 unassisted brakes onto a Bentley 11. | 26th Apr 1938 | Box 85 \ 1 scan0410 | |
| Part specifications and changes for Bentley II, Phantom III, and Wraith models. | 4th May 1938 | Box 85 \ 1 scan0411 | |
| Request to order Lockhead brake components for a Bentley from Automative Products Ltd. | 12th May 1938 | Box 85 \ 1 scan0412 | |
| Alteration request for Lockheed front brakes for model 3.B.IV. | 3rd Jun 1938 | Box 85 \ 1 scan0413 | |
| Authorising the fitting of Lockheed front brakes to chassis 3.B.1V. | 15th Jun 1938 | Box 85 \ 1 scan0414 | |
| The production of new parts for Bentley Rear Brake Equalisers. | 18th Jul 1938 | Box 85 \ 1 scan0415 | |
| Letter to Dunlop Rubber Co. Ltd. concerning stopping distance figures for a Bentley on a wet track. | 20th Aug 1938 | Box 85 \ 1 scan0416 | |
| Letter from Dunlop Rubber Co. thanking for information regarding test results. | 22th Aug 1938 | Box 85 \ 1 scan0417 | |
| Parts list for the Bentley 11 front axle, brakes, and hub assembly. | 30th Aug 1938 | Box 85 \ 1 scan0418 | |
| Parts list for various sections, including components for hydraulically operated front brakes. | 30th Aug 1938 | Box 85 \ 1 scan0419 | |
| Instructing the cancellation of development schemes for Lockheed hydraulically operated brakes. | 29th Sep 1938 | Box 85 \ 1 scan0420 | |
| Diagram illustrating the design of a servo brake system. | 14th Oct 1938 | Box 85 \ 1 scan0421 | |
| Requesting an order be placed with Bendix Ltd. for Bentley two-leading shoe brakes. | 21th Oct 1938 | Box 85 \ 1 scan0422 | |
| Complaint about brake thumps on the Bentley II and a proposed solution using dampers from the Wraith 'C' series. | 23th Jan 1939 | Box 85 \ 1 scan0423 | |
| Brake thumps on the Bentley II model. | 28th Apr 1939 | Box 85 \ 1 scan0424 | |
| Requesting a Bentley II brake damper be sent to Franco-Britannic Autos Ltd. in Paris. | 2nd May 1939 | Box 85 \ 1 scan0425 | |
| Brake thumping issue on the Bentley II, discussing a proposed scheme and the supply of dampers. | 2nd May 1939 | Box 85 \ 1 scan0426 | |
| Revised design for a sports clutch thrust arrangement. | 10th May 1932 | Box 85 \ 2 scan0001 | |
| Bensport multi-plate clutch, sending a new schedule and detailing modifications. | 11th Jun 1932 | Box 85 \ 2 scan0002 | |
| Modification for an oil drain for the Bensport clutch spigot bearing. | 17th Jun 1932 | Box 85 \ 2 scan0003 | |
| The Bensport clutch operation, referencing schemes for the arrangement of the clutch pedal. | 21th Sep 1932 | Box 85 \ 2 scan0004 | |
| Suggested revisions to the Bensport clutch and flywheel for the J.1. engine. | 4th Nov 1932 | Box 85 \ 2 scan0005 | |
| Modifications to the Bensport clutch operation for use with J.I. engines. | 16th Nov 1932 | Box 85 \ 2 scan0006 | |
| Proposed scheme for Bensport flywheel vibrations, involving a tail bearing and multi-plate clutch. | 28th Jan 1933 | Box 85 \ 2 scan0007 | |
| Modification to a 20/25 flywheel for the Bensport model to reduce inertia. | 8th Feb 1933 | Box 85 \ 2 scan0008 | |
| Reducing flywheel inertia on a Bensport model by fitting a multiplate clutch. | 22th Feb 1933 | Box 85 \ 2 scan0009 | |
| Weight comparison between the standard and low inertia flywheels for the 20/25 model. | 1st Mar 1933 | Box 85 \ 2 scan0010 | |
| The Bensport clutch operation, proposing a modification to the levers to prevent engine rocking. | 15th Mar 1933 | Box 85 \ 2 scan0011 | |
| Design and experimental production of a spring-driven clutch centre for Bensport. | 23th Mar 1933 | Box 85 \ 2 scan0012 | |
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