| Description | Date | Identifier | |
| Request to manufacture a new pedal spring for a Borg & Beck clutch due to the original being too highly loaded. | 3rd Dec 1935 | Box 85 \ 2 scan0213 | |
| Clutch failures on Bentley cars, comparing the original clutch with a new RR clutch and a potential Borg & Beck replacement. | 3rd Dec 1935 | Box 85 \ 2 scan0214 | |
| Internal request to order 12 joint washers for a Bentley, with material specifications. | 5th Dec 1935 | Box 85 \ 2 scan0215 | |
| Clutch failures on Bentley cars, comparing the cost and implications of using a Borg & Beck clutch versus an improved Rolls-Royce type. | 7th Dec 1935 | Box 85 \ 2 scan0216 | |
| Clutch failures on Bentleys and the potential for fitting an up-to-date, non-standard Borg & Beck clutch. | 11th Dec 1936 | Box 85 \ 2 scan0217 | |
| High-speed endurance testing and modifications for the 10' Borg & Beck clutch for Bentley. | 3rd Jan 1936 | Box 85 \ 2 scan0218 | |
| Failed 10-inch Bentley clutch from car B-14, taken by Mr Barker of Borg & Beck for examination. | 3rd Jan 1936 | Box 85 \ 2 scan0219 | |
| Issues with Bentley Large Slipper Wheel friction linings and proposed design modifications. | 4th Jan 1936 | Box 85 \ 2 scan0220 | |
| Change of spring for the Borg & Beck clutch on a Bentley pedal. | 6th Jan 1936 | Box 85 \ 2 scan0221 | |
| On required corrections to the Bentley chassis Borg & Beck clutch, concerning pressure plate balancing and spring specifications. | 6th Jan 1936 | Box 85 \ 2 scan0222 | |
| Two failures of a 10-inch Borg & Beck clutch for Bentley during high-speed endurance testing. | 6th Jan 1936 | Box 85 \ 2 scan0223 | |
| Clutch balancing methods and clutch spring development for large bore engines. | 6th Jan 1936 | Box 85 \ 2 scan0224 | |
| Standardisation of clutch springs for large bore cars, referencing Borg & Beck and the Bentley clutch. | 6th Jan 1936 | Box 85 \ 2 scan0225 | |
| Photograph of a fractured Borg & Beck clutch pressure plate after an endurance test. | 16th Dec 1935 | Box 85 \ 2 scan0226 | |
| The method for locating and fixing 10' Borg & Beck clutches on Bentley flywheels. | 16th Jan 1936 | Box 85 \ 2 scan0227 | |
| Instructions and new drawings for a Large Bore Bentley Chassis spring drive and slipper flywheel. | 29th Jan 1936 | Box 85 \ 2 scan0228 | |
| The lubrication of Bentley clutches and suspected clutch slip caused by overoiling the trunnion. | 1st Feb 1936 | Box 85 \ 2 scan0229 | |
| Tests conducted on a Borg & Beck clutch to investigate the cause of finger lever bolt breakage. | 5th Feb 1936 | Box 85 \ 2 scan0230 | |
| Hairpin spring fatigue, proposing stronger springs and a new minimum clearance for the clutch trunnion shaft. | 5th Feb 1936 | Box 85 \ 2 scan0231 | |
| 510-mile road test of a Borg & Beck clutch, which ended due to a connecting rod seizure. | 13th Feb 1936 | Box 85 \ 2 scan0232 | |
| Questioning the decision to revert to an R.R. clutch for the Bentley, citing previous issues and lack of testing. | 6th Mar 1936 | Box 85 \ 2 scan0233 | |
| Questioning the decision to use a Borg and Beck clutch in the Bentley and asking for details on the alternative RR clutch. | 6th Mar 1936 | Box 85 \ 2 scan0234 | |
| The proposal to revert to the Rolls-Royce clutch for the large bore Bentley. | 10th Mar 1936 | Box 85 \ 2 scan0235 | |
| Proposed scheme for a clutch operating linkage with cantilever pedals for a Bentley. | 10th Mar 1936 | Box 85 \ 2 scan0236 | |
| Design notes on pedal shaft support, clutch pedal stop, compression rod forks, and a frame stiffener. | 10th Mar 1936 | Box 85 \ 2 scan0237 | |
| The clutch operating linkage for cantilever pedals on a Bentley. | 11th Mar 1936 | Box 85 \ 2 scan0238 | |
| Temporary bracket for the clutch operating linkage on a Bentley. | 11th Feb 1936 | Box 85 \ 2 scan0239 | |
| Disagreeing with the use of the company's clutch on the 4¼-litre Bentley, favouring the Borg and Beck clutch. | 12th Mar 1936 | Box 85 \ 2 scan0240 | |
| Request to manufacture a further steel oil flinger for a Bentley Clutch, referencing a Borg & Beck drawing. | 16th Mar 1936 | Box 85 \ 2 scan0241 | |
| Requesting the trial of a cast iron flywheel with a rubber base clutch on a Bentley. | 3rd Apr 1936 | Box 85 \ 2 scan0242 | |
| Requesting the procurement of a specific Bentley clutch part from Messrs. Borg & Beck. | 6th Apr 1936 | Box 85 \ 2 scan0243 | |
| The testing and modification of a Bentley Flexible Flywheel to achieve the desired flexibility. | 16th Apr 1936 | Box 85 \ 2 scan0244 | |
| Failure of a Bentley flexible flywheel and requesting new modified versions for continued testing. | 22th Apr 1936 | Box 85 \ 2 scan0245 | |
| Worsening clutch issue with 'jaggers at the start', arranging for an inspection. | 25th Apr 1936 | Box 85 \ 2 scan0246 | |
| Telegram about a tester visiting to try a bad Bentley clutch. | 27th Apr 1936 | Box 85 \ 2 scan0247 | |
| Order for six 10-inch Bentley clutch driven plates from Borg & Beck. | 29th Apr 1936 | Box 85 \ 2 scan0248 | |
| Letter explaining why a car's clutch performed well during a test, despite having previous issues. | 29th Apr 1936 | Box 85 \ 2 scan0249 | |
| Internal memorandum discussing the investigation into clutch jaggers on Bentley and 25/30 HP models due to oil contamination. | 1st May 1936 | Box 85 \ 2 scan0250 | |
| Visit to address a customer complaint about a 4¼ litre Bentley clutch. | 7th May 1936 | Box 85 \ 2 scan0251 | |
| From Sg. to Rm. regarding an investigation into a clutch issue on Professor Dodds' 4¼-litre car. | 11th May 1936 | Box 85 \ 2 scan0252 | |
| Damaged driven plate spline and clutch issue for Professor Dodds' Car (B-34-GA). | 12th May 1936 | Box 85 \ 2 scan0253 | |
| Modifications to the Bentley rear axle to improve performance for 'clutch jaggers'. | 13th May 1936 | Box 85 \ 2 scan0254 | |
| Requesting a delay in ordering 'No. 6' material for the Bentley & 25/30 HP clutch. | 15th May 1936 | Box 85 \ 2 scan0255 | |
| Issues of 'jagger' in Borg & Beck clutches on Bentley 25/30 HP models, caused by parallelism problems. | 15th May 1936 | Box 85 \ 2 scan0256 | |
| Urgent memo regarding recurring clutch issues with two Bentley trials cars and the inconvenience caused during the selling season. | 18th May 1936 | Box 85 \ 2 scan0257 | |
| 'jaggering' clutch issue on a Bentley Trials Coupé B-2-GA due to incorrect assembly. | 19th May 1936 | Box 85 \ 2 scan0258 | |
| Teething troubles and 'jaggering' issues with Bentley car clutches. | 20th May 1936 | Box 85 \ 2 scan0259 | |
| Request to manufacture a new lever for a Bentley clutch to reduce separation by 11% and lighten the pedal load. | 14th Nov 1936 | Box 85 \ 2 scan0260 | |
| Return of a Bentley B-2-GA for repairs due to clutch, brake, and engine issues. | 16th Jun 1936 | Box 85 \ 2 scan0261 | |
| Irregularities in the thickness of Borg & Beck clutch driven plates. | 17th Jun 1936 | Box 85 \ 2 scan0262 | |
| Requesting to try the successful Ferodo 'No.6' Bentley clutch material on a Rolls-Royce segmented driven plate. | 1st Jul 1936 | Box 85 \ 2 scan0263 | |
| Supply, specifications, and fitting instructions for various clutch thrust springs. | 9th Jul 1936 | Box 85 \ 2 scan0264 | |
| Depot sheet describing the method of inspection for 'jaggering' Bentley 4¼ litre and 25/30 HP clutches. | 13th Jul 1936 | Box 85 \ 2 scan0265 | |
| Transmission rattle and the use of a propellor shaft damper. | 17th Jul 1936 | Box 85 \ 2 scan0266 | |
| Unsatisfactory downward stop for the Bentley clutch pedal. | 17th Jul 1936 | Box 85 \ 2 scan0267 | |
| Request to prepare six additional levers for a Bentley Clutch, three for Rm.149 and three for Rm.159. | 17th Jul 1936 | Box 85 \ 2 scan0268 | |
| Experimental Department's request for a downward stop on the Bentley clutch. | 8th Aug 1936 | Box 85 \ 2 scan0269 | |
| Requesting the trial of a ventilated clutch on a Bentley, including a modification to the clutch casing. | 10th Aug 1936 | Box 85 \ 2 scan0270 | |
| The preference for forged forks over square bar forks for the Bentley clutch operation. | 13th Aug 1936 | Box 85 \ 2 scan0271 | |
| Clutch jaggering on Bentley 4 1/4 Litre & 25/30 HP models and the recommended fitting of a propeller shaft damper. | 13th Aug 1936 | Box 85 \ 2 scan0272 | |
| Request to manufacture 27 thrust springs for Bentley clutches and to fit a set to unit 5-B-IV. | 20th Aug 1936 | Box 85 \ 2 scan0273 | |
| Requesting modifications to the clutch and propeller shaft for car B-56-BN. | 24th Aug 1936 | Box 85 \ 2 scan0274 | |
| The fitting of cream-coloured clutch thrust springs to a ventilated Bentley clutch. | 31th Aug 1936 | Box 85 \ 2 scan0275 | |
| Clutch finger issues found on Mr. Ferguson's Bentley, including details of unevenness and testing inconsistencies. | 6th Oct 1936 | Box 85 \ 2 scan0276 | |
| Faulty clutch plate and subsequent vibration issues on a Barclay's Bentley. | 6th Oct 1936 | Box 85 \ 2 scan0277 | |
| Timing mark misalignment on Bentley & 30 HP clutch units due to the lack of a definite locating pin. | 13th Oct 1936 | Box 85 \ 2 scan0278 | |
| On timing mark discrepancies discovered during Bentley & 30 HP clutch changes and the proposed solution. | 13th Oct 1936 | Box 85 \ 2 scan0279 | |
| Confirming modifications to a Bentley clutch to gain experience for use on experimental cars. | 19th Oct 1936 | Box 85 \ 2 scan0280 | |
| Enquiry into Bentley flywheels at Kingsbury. | 22th Oct 1936 | Box 85 \ 2 scan0281 | |
| Enquiry into Bentley flywheels, supporting the use of a solid ring and flywheel design. | 22th Oct 1936 | Box 85 \ 2 scan0282 | |
| The preparation of fabrics for clutch modifications on car chassis 1-B-IV. | 26th Oct 1936 | Box 85 \ 2 scan0283 | |
| The despatch of two faulty Bentley clutches to Messrs. Borg & Beck for rectification. | 26th Oct 1936 | Box 85 \ 2 scan0284 | |
| The testing and rebuilding of a Bentley Flexible Flywheel. | 28th Oct 1936 | Box 85 \ 2 scan0285 | |
| Fixing of clutches and timing markings on 25/30 HP and Bentley models. | 2nd Nov 1936 | Box 85 \ 2 scan0286 | |
| Responding to Bentley quarterly complaints regarding issues with specific vehicles. | 3rd Nov 1936 | Box 85 \ 2 scan0287 | |
| Requesting the replacement of clutch No.15 on a B.7 unit. | 2nd Nov 1936 | Box 85 \ 2 scan0288 | |
| Modifications for a Bentley clutch to be ordered from Borg & Beck. | 5th Nov 1936 | Box 85 \ 2 scan0289 | |
| Summary of the present clutch position for the Phantom III, detailing troubles and friction materials. | 15th Nov 1936 | Box 85 \ 2 scan0290 | |
| Analysis of different clutch plate materials and driven plate designs. | 16th Nov 1936 | Box 85 \ 2 scan0291 | |
| Clutch design improvements, manufacturing specifications, and test results for the Phantom III clutch. | 16th Nov 1936 | Box 85 \ 2 scan0292 | |
| Tests concerning reverse jaggers, axle torsional flexibility, and various methods for reducing pedal pressure. | 10th Nov 1936 | Box 85 \ 2 scan0293 | |
| Technical report discussing issues and proposed improvements for a clutch system, focusing on squeaks, life, stopping, and bearings. | 16th Nov 1936 | Box 85 \ 2 scan0294 | |
| Technical report on clutch design issues and proposed solutions for both Rolls-Royce and Bentley vehicles. | 16th Nov 1936 | Box 85 \ 2 scan0295 | |
| Clutch manufacturing faults, future clutch designs for Bentley, and experimental clutches on Phantom III cars. | 16th Nov 1936 | Box 85 \ 2 scan0296 | |
| Technical report detailing clutch specifications and modifications for various vehicle models. | 16th Nov 1936 | Box 85 \ 2 scan0297 | |
| List of specifications and modifications for clutch and pedal components. | 16th Nov 1936 | Box 85 \ 2 scan0298 | |
| Graph showing the characteristics of a long semi-centrifugal clutch against motor R.P.M. | 1st Apr 1936 | Box 85 \ 2 scan0299 | |
| Comparative table of clutch particulars for the PH III, 25/30, and BENT 4¼ models. | 16th Nov 1936 | Box 85 \ 2 scan0300 | |
| Cost and design of cantilever pedals for the Bentley and the use of loose starter motor rings for the Wraith. | 16th Nov 1936 | Box 85 \ 2 scan0301 | |
| Proposal to add three ventilation holes to the standard Bentley clutch casing. | 19th Nov 1936 | Box 85 \ 2 scan0302 | |
| Sending a summary on the present position of clutches, with a focus on manufacture and fitting. | 20th Nov 1936 | Box 85 \ 2 scan0303 | |
| Proposal to add three large ventilation holes to the standard Bentley clutch casing, similar to the Essex Terraplane, for economy. | 19th Nov 1936 | Box 85 \ 2 scan0304 | |
| The estimated factory cost increase for fitting Bentley Cantilever Pedals. | 1st Dec 1936 | Box 85 \ 2 scan0305 | |
| Internal enquiry regarding the durability of starter gear teeth on 25 HP and Bentley flywheels. | 1st Dec 1936 | Box 85 \ 2 scan0306 | |
| Frequently burnt-out clutches in Bentley C Series vehicles and a proposed solution. | 3rd Dec 1936 | Box 85 \ 2 scan0307 | |
| Requesting an urgent order for a Bentley clutch with special features from Borg & Beck. | 4th Dec 1936 | Box 85 \ 2 scan0308 | |
| Bentley clutch complaints and potential solutions. | 4th Dec 1936 | Box 85 \ 2 scan0309 | |
| The castellated eyebolt adjusting nuts for Bentley & 25/30 clutches, advising service stations to return faulty units to the Works. | 17th Dec 1933 | Box 85 \ 2 scan0310 | |
| Cost-saving modifications for the Bentley cantilever pedal linkage. | 17th Dec 1936 | Box 85 \ 2 scan0311 | |
| Clutch failure for Bentley chassis B.99-BL, owned by Mr. Levey, detailing its service history and attributing the issue to the customer's driving style. | 29th Dec 1936 | Box 85 \ 2 scan0312 | |
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