| Description | Date | Identifier | |
| On 20/25 steerings, concluding that a gear ratio alteration from recent experiments is not worth standardising. | 10th Apr 1935 | Box 106 \ 3 scan0308 | |
| Improvements and modifications to a car's steering system. | 10th Apr 1935 | Box 106 \ 3 scan0309 | |
| Covering note regarding 20/25 Steering. | 10th Apr 1935 | Box 106 \ 3 scan0310 | |
| Improvements to a car's steering system, specifically the cross steering tube and pendulum lever. | 11th Apr 1935 | Box 106 \ 3 scan0311 | |
| Modifications to the 20/25 HP steerings, including changes to oil and tube poundage. | 13th Apr 1935 | Box 106 \ 3 scan0312 | |
| Modifications to the 20/25HP steering system to reduce tube poundage. | 15th Apr 1935 | Box 106 \ 3 scan0313 | |
| Reduction of friction in the steering by reviewing the rating of springs in the ball joints. | 25th Apr 1935 | Box 106 \ 3 scan0314 | |
| Controls for the 25-HP Chassis fitted with a Marles steering box. | 8th May 1935 | Box 106 \ 3 scan0315 | |
| Problem of heavy steering on 20/25 HP cars and comparing modifications made to car GAE-19. | 8th May 1935 | Box 106 \ 3 scan0316 | |
| Brief memo acknowledging a query about 20/25 HP steering. | 9th May 1935 | Box 106 \ 3 scan0317 | |
| Internal memorandum regarding steering seizing issues on the 20/25 HP Chassis (GOH-4). | 5th Aug 1935 | Box 106 \ 3 scan0318 | |
| Steering seizure issue on a 20/25 HP chassis. | 8th Aug 1935 | Box 106 \ 3 scan0319 | |
| Steering seizure issues on the 20/25 HP chassis (GOH-4). | 9th Aug 1935 | Box 106 \ 3 scan0320 | |
| Ordering of alternative steering worms and rocker shafts for the 20/25 model. | 9th Aug 1935 | Box 106 \ 3 scan0321 | |
| List of parts to be fitted to specific cars, with an urgent request for an induction pipe for testing purposes. | 15th Aug 1935 | Box 106 \ 3 scan0322 | |
| List of 20/25 parts to be fitted to WOR's car. | 15th Aug 1935 | Box 106 \ 3 scan0323 | |
| Table of steering cam and roller combinations for the 20/25 HP model. | 7th Sep 1935 | Box 106 \ 3 scan0324 | |
| Instruction to produce a new Pendulum Lever for the Marles steering on the 20/25 HP chassis. | 7th Sep 1935 | Box 106 \ 3 scan0325 | |
| Letter from British Timken Ltd acknowledging a paper and awaiting the test results for their bearings in steering gears. | 26th Sep 1935 | Box 106 \ 3 scan0326 | |
| Steering experiments on car 21-G-IV, relocating them from France to the Works. | 26th Sep 1935 | Box 106 \ 3 scan0327 | |
| Specification table for rollers used in Spectre & 20/25 HP steering parts. | 27th Sep 1935 | Box 106 \ 3 scan0328 | |
| Table of specifications for Cams used in Spectre & 20/25 HP steering parts. | 27th Sep 1935 | Box 106 \ 3 scan0329 | |
| Stiff steering on the 20/25 HP chassis, requesting views on the matter. | 27th Sep 1935 | Box 106 \ 3 scan0330 | |
| Report on grooved worms for steering systems to address component sticking and customer complaints. | 5th Sep 1935 | Box 106 \ 3 scan0331 | |
| Complaints of steering stiffness, arguing for the reintroduction of grooved worms based on test results and historical performance. | 5th Sep 1935 | Box 106 \ 3 scan0332 | |
| Comparison report on running-in rig tests for grooved versus non-grooved worms. | 1st Oct 1935 | Box 106 \ 3 scan0333 | |
| Manufacturing difficulties and costs associated with adding grooves to steering worms. | 1st Oct 1935 | Box 106 \ 3 scan0334 | |
| Function and manufacturing challenges of grooved worms in chassis steering systems. | 7th Oct 1935 | Box 106 \ 3 scan0335 | |
| Forwarding a copy of another memo regarding chassis steering. | 10th Oct 1935 | Box 106 \ 3 scan0336 | |
| Chassis steering, discussing the function and manufacturing of grooved worms for oil distribution. | 10th Oct 1935 | Box 106 \ 3 scan0337 | |
| Confirming the required first gear arrangement for steering experiments on chassis 21-G-IV. | 14th Oct 1935 | Box 106 \ 3 scan0338 | |
| Requesting the build of a specific gear arrangement for steering experiments on vehicle 21-G-IV. | 15th Oct 1935 | Box 106 \ 3 scan0339 | |
| Requesting an alteration to Gear No.1 for steering experiments on chassis 21-G-IV. | 21th Oct 1935 | Box 106 \ 3 scan0340 | |
| Confirmation to replace the 9.437' pendulum lever with a standard 8.250' one on 21-G-IV. | 26th Oct 1935 | Box 106 \ 3 scan0341 | |
| Results of steering experiments and modifications on chassis 21-G-IV. | 26th Oct 1935 | Box 106 \ 3 scan0342 | |
| Proposal to correct steering geometry issues by testing a new pendulum lever, rockershaft, and articulated side steering tube. | 26th Oct 1935 | Box 106 \ 3 scan0343 | |
| Requesting the construction of a new steering geometry for a 25 HP car. | 4th Nov 1935 | Box 106 \ 3 scan0344 | |
| Oil leak from the Ph.III & 25 HP Marles Type Steering gear, attributing it to bad fitting and suggesting a modification. | 11th Nov 1935 | Box 106 \ 3 scan0345 | |
| Oil leak in a Ph.III & 25 HP Marles Type Steering system due to an incorrectly fitted sleeve. | 11th Nov 1935 | Box 106 \ 3 scan0346 | |
| Steering modifications for chassis 21-G-IV prior to a 10,000 miles test. | 25th Nov 1935 | Box 106 \ 3 scan0347 | |
| Wording modification for the 20/25 HP steering column riding control. | 2nd Dec 1935 | Box 106 \ 3 scan0348 | |
| Change in the 25 HP steering geometry, cancelling instructions for a specific lever. | 11th Dec 1935 | Box 106 \ 3 scan0349 | |
| The delayed trial of a new steering arrangement on a 25 HP chassis and the need to construct a second pendulum lever. | 11th Dec 1935 | Box 106 \ 3 scan0350 | |
| Cost reduction proposal for a steering column support bracket on the 20/25 HP model. | 19th Dec 1935 | Box 106 \ 3 scan0351 | |
| Programme of steering experiments for the Ph.III and 25 HP models, detailing component trials on specific chassis. | 23th Dec 1935 | Box 106 \ 3 scan0352 | |
| Proposal to modernize the 25/29 HP steering wheel and controls using the Phantom III design. | 30th Dec 1935 | Box 106 \ 3 scan0353 | |
| Instruction to fit larger bolts to the steering boxes for Phantom III and 25 HP models. | 2nd Jan 1936 | Box 106 \ 3 scan0354 | |
| Requesting a missing print concerning suggested cost reductions for a 20/25 HP steering support bracket. | 2nd Jan 1936 | Box 106 \ 3 scan0355 | |
| Modifications to the side steering tube for the Marles steering on the 25/30 HP chassis. | 2nd Jan 1936 | Box 106 \ 3 scan0356 | |
| Confirming a print of sketch W.K.S. 173 for a steering support bracket is attached. | 7th Jan 1936 | Box 106 \ 3 scan0357 | |
| Instruction to fit a steel damping tube to Phantom III and 25 HP steering systems. | 31th Jan 1936 | Box 106 \ 3 scan0358 | |
| Preloading adjustments for the Marles Type Steering on Phantom III & 25 HP models. | 7th Feb 1936 | Box 106 \ 3 scan0359 | |
| Instructions for preloading conical roller bearings on a rockershaft to prevent slack in the steering wheel. | 7th Feb 1936 | Box 106 \ 3 scan0360 | |
| Steering set-up loads and cam bearing housing ovality for Phantom III & 25 HP models. | 28th Feb 1936 | Box 106 \ 3 scan0361 | |
| Instructing the replacement of a pendulum lever on car 22-G-V. | 4th Mar 1936 | Box 106 \ 3 scan0362 | |
| Request to make an 8.250 pendulum lever for a 22-G-V steering trial. | 5th Mar 1936 | Box 106 \ 3 scan0363 | |
| Requesting a trial of a new 8.250' steering lever, using a modified standard 'F' type lever. | 6th Mar 1936 | Box 106 \ 3 scan0364 | |
| Failure of Timken steering bearings and the decision to replace them with Adamant bearings. | 25th Mar 1936 | Box 106 \ 3 scan0365 | |
| Technical memorandum detailing assembly faults with the Side and Cross Steering Tube on Bentley & 20/25 models. | 2nd Apr 1936 | Box 106 \ 3 scan0366 | |
| Comparing weight and cost savings for adopting a sealed down Phantom III cross steering tube joint on Bentley and 25 HP models. | 8th Apr 1936 | Box 106 \ 3 scan0367 | |
| Difficulties with the location of a contact piece in a sleeve and proposed solutions. | 8th Apr 1936 | Box 106 \ 3 scan0368 | |
| Steering jam incident on a 25/30HP chassis, recommending improved clearance and a locking device. | 20th Apr 1936 | Box 106 \ 3 scan0369 | |
| Differences in steering systems for the Phantom III and 25/30 HP models. | 13th May 1936 | Box 106 \ 3 scan0370 | |
| Request to dismantle and examine a steering gear due to a suspected failure causing tightness. | 18th May 1936 | Box 106 \ 3 scan0371 | |
| The fitment of malleable iron steering boxes to Phantom III & 25 HP models. | 18th May 1936 | Box 106 \ 3 scan0372 | |
| Failure of ball bearings in the 25/30 HP steering and proposed urgent experiments for a fix. | 21th May 1936 | Box 106 \ 3 scan0373 | |
| Analysis of a steering failure on a 25/30 HP model due to fractured ball bearings and proposed design modifications. | 21th May 1936 | Box 106 \ 3 scan0374 | |
| Outlining the plan to conduct rig tests to determine the life of proposed modifications. | 21th May 1936 | Box 106 \ 3 scan0375 | |
| Report on a broken steering ball from a 25/30 HP model, and the subsequent instruction to produce modified parts. | 25th May 1936 | Box 106 \ 3 scan0376 | |
| Letter from Hoffmann Manufacturing regarding the failure analysis of a broken ball bearing and proposed modifications to drawings for a 25/30 HP Chassis steering system. | 22th May 1936 | Box 106 \ 3 scan0377 | |
| Visit to Adamant Engineering Co. regarding a ball bearing failure and proposed manufacturing solutions. | 8th Jun 1936 | Box 106 \ 3 scan0378 | |
| The bore accuracy of supplied cams, and considerations for steering tube and roller design. | 8th Jun 1936 | Box 106 \ 3 scan0379 | |
| The replacement of turret-style controls with Phantom III type levers on the 25/30 HP chassis. | 15th Jun 1936 | Box 106 \ 3 scan0380 | |
| Timing for introducing new instrument board and steering column controls on the 25/30 HP chassis. | 16th Jun 1936 | Box 106 \ 3 scan0381 | |
| Request to prepare and fit a Marles type steering system and an isolated change speed lever to car GAE-20. | 16th Jun 1936 | Box 106 \ 3 scan0382 | |
| The details and production of improved controls on the steering column for the 25/30 HP chassis. | 24th Jun 1936 | Box 106 \ 3 scan0383 | |
| Requesting the assembly of a steering gear for 25 HP steering rig tests, listing required parts. | 25th Jun 1936 | Box 106 \ 3 scan0384 | |
| Serious discussion about a 25/30 steering issue and the need for a sub-committee decision. | 25th Jun 1936 | Box 106 \ 3 scan0385 | |
| The introduction of a new cam with a modified radius for the ball track in the 25/30 HP chassis steering system. | 3rd Mar 1936 | Box 106 \ 3 scan0386 | |
| Quality issues with new roller followers for the 25 HP steering system. | 6th Jul 1936 | Box 106 \ 3 scan0387 | |
| The replacement of weak inner races on steering cam rollers for 179 cars. | 6th Jul 1936 | Box 106 \ 3 scan0388 | |
| Request for an endurance test on a 25 HP rig steering box with specified test conditions. | 10th Jul 1936 | Box 106 \ 3 scan0389 | |
| The required load specification for the 25/30 HP steering roller follower assembly drawing. | 15th Jul 1936 | Box 106 \ 3 scan0390 | |
| Blueprints for a modification to the steering column & box, changing to roller ball bearings for a 25/30 HP chassis. | 16th Jul 1936 | Box 106 \ 3 scan0391 | |
| Failures with 25 HP steering bearings and the decision to change manufacturers to improve quality. | 17th Jul 1936 | Box 106 \ 3 scan0392 | |
| Steering gear preload measurements and recommendations for 25 HP and Phantom III models due to complaints of wandering and backlash. | 10th Aug 1936 | Box 106 \ 3 scan0393 | |
| Analysis of gear backlash in a steering assembly, with recommendations for bearing improvements. | 10th Aug 1936 | Box 106 \ 3 scan0394 | |
| Tables showing representative steering gear preloads for production vehicles and the effect of blows on the pendulum lever. | 10th Aug 1936 | Box 106 \ 3 scan0395 | |
| Request for a report on a steering complaint for chassis GUL-41, belonging to C.R. Dormer Esq. | 10th Aug 1936 | Box 106 \ 3 scan0396 | |
| Cover memo for a report on the steering of GUL-41. | 17th Aug 1936 | Box 106 \ 3 scan0397 | |
| Examination report on a steering gear removed from chassis GUL-41, detailing failures due to a missing packing washer. | 17th Aug 1936 | Box 106 \ 3 scan0398 | |
| Modification to the steering pivot washers on the 25/30 HP chassis. | 19th Aug 1936 | Box 106 \ 3 scan0399 | |
| Cover note regarding 25/30 HP steering and Park Ward's Trials Car GUL-36. | 21th Jul 1936 | Box 106 \ 3 scan0400 | |
| Complaint case regarding uncertain steering on a Park Ward & Co's 25/30 Trials Limousine, chassis GUL-36. | 20th Jul 1936 | Box 106 \ 3 scan0401 | |
| Urging the installation of a new steering gear for chassis 22-G-V to allow for mileage testing. | 24th Aug 1936 | Box 106 \ 3 scan0402 | |
| Technical letter diagnosing steering wandering on a 25 HP chassis due to bad geometry. | 25th Aug 1936 | Box 106 \ 3 scan0403 | |
| Sourcing and modifying alternative parts for the steering gear on a 22-G-V model. | 26th Aug 1936 | Box 106 \ 3 scan0404 | |
| Request to issue a new drawing for a modified washer to improve 25/30 HP steering lubrication. | 9th Sep 1936 | Box 106 \ 3 scan0405 | |
| Modification memo detailing a new Friction Washer for the 25/30-HP chassis front axle. | 17th Sep 1936 | Box 106 \ 3 scan0406 | |
| Recommendation to fix steering wandering on the 25/30 HP model by fitting a new pivot bearing bush. | 19th Sep 1936 | Box 106 \ 3 scan0407 | |
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