| Description | Date | Identifier | |
| Clarifying the standardisation sheet and cost implications for the 40/50 HP speedometer drive. | 21th Apr 1923 | Box 171 \ 3 img173 | |
| Standardisation of chassis parts for an oil level indicator. | 23th May 1923 | Box 171 \ 3 img174 | |
| Standardisation of a modified control for the butterfly valve in the exhaust pipe. | 28th May 1923 | Box 171 \ 3 img175 | |
| Returning standardisation sheet no. 3527 for an oil level indicator on the 40/50 chassis, with cost implications. | 4th Jun 1923 | Box 171 \ 3 img176 | |
| Standardisation report for Jeavons Gaiters for Springs as an alternative to the 'Wefco' part. | 5th Jun 1923 | Box 171 \ 3 img177 | |
| Standardisation of an oil filler plug for the gear box. | 28th Jun 1923 | Box 171 \ 3 img178 | |
| Standardisation of Dunlop wire wheels with straight spokes on the inside. | 2nd Jul 1923 | Box 171 \ 3 img179 | |
| Standardisation of Dunlop wire wheels with straight spokes on the inside. | 7th Mar 1923 | Box 171 \ 3 img180 | |
| Standardisation of chassis parts concerning valves to overcome exhaust failures. | 16th Aug 1923 | Box 171 \ 3 img181 | |
| Returning a Standardisation Sheet for valves, including costs and stock value. | 22th Aug 1923 | Box 171 \ 3 img182 | |
| Standardisation sheets for valves, exhaust pipes, and undershields. | 30th Aug 1923 | Box 171 \ 3 img183 | |
| Standardisation document for the isolation of the scuttle from the dashboard to avoid booming and vibrations. | 27th Jul 1923 | Box 171 \ 3 img184 | |
| Scuttle separation on 40/50 HP bodies, referencing a Coachbuilders sub-committee meeting and blueprint No.703B. | 25th Jun 1923 | Box 171 \ 3 img185 | |
| Extract from the Coachbuilding Sub-Committee minutes regarding scuttle separation. | 17th Jul 1943 | Box 171 \ 3 img186 | |
| Sectional view showing a proposed separation of the scuttle from the dashboard. | 5th Sep 1923 | Box 171 \ 3 img187 | |
| Standardisation proposal for a bracket fixed to the frame to carry a luggage grid. | 5th Sep 1923 | Box 171 \ 3 img188 | |
| Standardisation of chassis parts, specifically steering levers and ball ends, with a corresponding cost sheet and stock value. | 19th Sep 1923 | Box 171 \ 3 img189 | |
| Standardisation of chassis parts, specifically steering levers and ball ends. | 30th Aug 1923 | Box 171 \ 3 img190 | |
| Standardisation proposal to cancel the fitting of the exhaust cut-out. | 26th Sep 1923 | Box 171 \ 3 img191 | |
| Standardisation proposal for changing the bolts fixing the water pump to studs. | 26th Sep 1923 | Box 171 \ 3 img192 | |
| Standardisation of the epicyclic gear-case for the starter motor to increase dynamo belt clearance. | 26th Sep 1923 | Box 171 \ 3 img193 | |
| Standardisation of a rear spring shackle to provide more wearing surface. | 26th Sep 1923 | Box 171 \ 3 img194 | |
| Standardisation document for a washer for the steering box stud. | 26th Sep 1923 | Box 171 \ 3 img195 | |
| Standardisation of chassis parts, proposing a change from steel plated bolts to nickel-silver bolts for the bonnet catch and handle. | 25th Sep 1923 | Box 171 \ 3 img196 | |
| Standardisation of chassis parts document, proposing the use of standard nuts on the engine coupling. | 3rd Oct 1923 | Box 171 \ 3 img197 | |
| Standardisation of chassis parts for the starter gear in the gear box. | 3rd Oct 1923 | Box 171 \ 3 img198 | |
| Standardisation of adjusting washers on the selector lock in the gear box. | 24th Sep 1923 | Box 171 \ 3 img199 | |
| Standardisation proposal to add a collar to the steering wheel spokes to improve its finish. | 25th Sep 1923 | Box 171 \ 3 img200 | |
| Standardisation of chassis parts, specifically an alteration to taper bolts fixing steering levers to pivots. | 24th Sep 1923 | Box 171 \ 3 img201 | |
| Standardisation of chassis parts, specifically a modification to the pedal plate on floorboards to reduce heat under the scuttle. | 24th Sep 1923 | Box 171 \ 3 img202 | |
| Standardisation document for changing bonnet strip fixing screws on 20HP and 40/50HP chassis. | 24th Sep 1923 | Box 171 \ 3 img203 | |
| Standardisation document for an oil pump cover, improving the design by making it stiffer. | 24th Sep 1923 | Box 171 \ 3 img204 | |
| Standardisation proposal for lubricators on axle brake brackets to make them more accessible. | 24th Sep 1923 | Box 171 \ 3 img205 | |
| Standardisation of chassis parts concerning dash bracket bolts. | 24th Sep 1923 | Box 171 \ 3 img206 | |
| Standardisation of a chassis part, the thermometer tube shield, to avoid a sharp bend. | 4th Oct 1923 | Box 171 \ 3 img207 | |
| Standardisation document for the front shock absorber link to improve lubrication. | 3rd Oct 1923 | Box 171 \ 3 img208 | |
| Standardisation of a Piston Pin Locking Screw to improve the design by adding extra clearance. | 24th Sep 1923 | Box 171 \ 3 img209 | |
| Standardisation of the grinding of pistons for 40/50 HP and 20 HP chassis. | 4th Oct 1923 | Box 171 \ 3 img210 | |
| Standardisation proposal for an oil filler on the rear axle to improve accessibility. | 8th Oct 1923 | Box 171 \ 3 img211 | |
| Standardisation of a steering box with more room to avoid hand-work and facilitate production. | 25th Sep 1923 | Box 171 \ 3 img212 | |
| Standardisation of chassis parts, specifically a friction washer for pivots. | 4th Oct 1923 | Box 171 \ 3 img213 | |
| Standardisation report for increasing the thickness of bolts holding the front end of the torque tube. | 26th Sep 1923 | Box 171 \ 3 img214 | |
| Standardisation proposal to improve the design of the engine coupling. | 8th Oct 1923 | Box 171 \ 3 img215 | |
| Standardisation of chassis parts, changing the material of knobs on control levers from ebonite to bakelite. | 3rd Oct 1923 | Box 171 \ 3 img216 | |
| Standardisation proposal to cancel the covers for thrust bearings on engine gears. | 3rd Oct 1923 | Box 171 \ 3 img217 | |
| Standardisation of engine mounting dampers to reduce vibrations. | 25th Oct 1923 | Box 171 \ 3 img218 | |
| The costs associated with Engine Mounting Dampers for 40/50 Cars. | 30th Oct 1923 | Box 171 \ 3 img219 | |
| Standardisation proposal for an oil guard for the universal joint to prevent oil leaks. | 30th Oct 1923 | Box 171 \ 3 img220 | |
| Standardisation of material for valves on 40/50 HP and 20 HP chassis to increase life. | 30th Oct 1923 | Box 171 \ 3 img221 | |
| Standardisation of chassis parts, proposing locking nuts with grover washers to replace riveting on frame fittings. | 28th Nov 1923 | Box 171 \ 3 img222 | |
| Standardisation of an improved steering wheel design for chassis parts. | 8th Dec 1923 | Box 171 \ 3 img223 | |
| Modification to the pipe to the air pump to prevent petrol flooding. | 7th Dec 1923 | Box 171 \ 3 img224 | |
| Standardisation proposal for a distance piece in gearbox G.2145 to reduce cost. | 7th Dec 1923 | Box 171 \ 3 img225 | |
| Standardisation proposal for the mounting of the petrol tank to delete unnecessary parts. | 24th Sep 1923 | Box 171 \ 3 img226 | |
| Standardisation document for aluminium pistons for repair cars. | 31th Jan 1924 | Box 171 \ 3 img227 | |
| Standardisation report on providing steel artillery wheels as an alternative to wire wheels. | 15th Jan 1924 | Box 171 \ 3 img228 | |
| Standardisation proposal for road springs on 40/50 HP and 20 HP models to suit bad roads abroad. | 22th Jan 1924 | Box 171 \ 3 img229 | |
| Standardisation of chassis parts to replace the petrol funnel with a 'Liquall' petrol filler for 40/50 and 20 HP chassis. | 12th Jan 1924 | Box 171 \ 3 img230 | |
| Standardising a replacement 'Liquall' petrol filler, with remarks from multiple individuals. | 12th Jan 1924 | Box 171 \ 3 img231 | |
| Standardisation report for Firths springs as a new source of supply. | 9th Apr 1924 | Box 171 \ 3 img232 | |
| Bump test results for Firths road springs, comparing 43' and 42' springs and discussing standardisation. | 9th Apr 1924 | Box 171 \ 3 img233 | |
| Standardisation of chassis parts concerning the Autovac petrol feed. | 8th May 1924 | Box 171 \ 3 img234 | |
| Standardisation proposal for gauze in petrol filters for 40/50 and 20 HP models. | 15th Apr 1924 | Box 171 \ 3 img235 | |
| Standardisation of chassis parts for front springs, brackets, and shackles to suit front wheel brakes. | 12th May 1924 | Box 171 \ 3 img236 | |
| Standardisation sheet for a steering wheel. | 21th Jun 1924 | Box 171 \ 3 img237 | |
| Standardisation report and approval for an improved steering wheel design. | 8th Dec 1923 | Box 171 \ 3 img238 | |
| Standardisation of chassis parts for a shorter change speed lever. | 6th Jun 1924 | Box 171 \ 3 img239 | |
| Standardisation of chassis parts, changing from cast iron to bronze valve guides to reduce wear. | 21th Aug 1924 | Box 171 \ 3 img240 | |
| Cover note for a report comparing the wear on P.B. valve guides with cast iron guides after 12,000 miles. | 21th Aug 1924 | Box 171 \ 3 img241 | |
| The wear of valves and guides after a 10,000-mile test, comparing broached and reamed finishes and tabulating measurements. | 20th Aug 1924 | Box 171 \ 3 img242 | |
| Standardisation of chassis parts, specifically regarding the use of Firths 'Silchrome' steel for valves. | 21th Aug 1924 | Box 171 \ 3 img243 | |
| Standardisation of a reverse pinion in a gearbox to allow for grinding. | 25th Sep 1924 | Box 171 \ 3 img244 | |
| Standardisation document for four-wheel brakes. | 15th Jul 1924 | Box 171 \ 3 img245 | |
| 10,000-mile brake test conducted in France. | 18th Jul 1924 | Box 171 \ 3 img246 | |
| Front spring failures and safety concerns with braking and steering on the 40/50 HP car. | 18th Jul 1924 | Box 171 \ 3 img247 | |
| Brake wear and steering spring performance. | 18th Jul 1924 | Box 171 \ 3 img248 | |
| Modifications to the engine, guards, and addressing servo gear noise. | 8th Jul 1924 | Box 171 \ 3 img249 | |
| Standardisation report for Firths front springs for 4-wheel brake cars, to improve design. | 15th Dec 1924 | Box 171 \ 3 img250 | |
| The standardization sheet and pricing for Firth's front springs for 4-wheel brake cars. | 16th Dec 1924 | Box 171 \ 3 img251 | |
| Standardisation of steel artillery wheels suitable for front wheel brakes. | 20th Mar 1925 | Box 171 \ 3 img252 | |
| Standardisation of the front brake cam operating shaft, lightened to reduce wear on bushes. | 23th Apr 1925 | Box 171 \ 3 img253 | |
| Standardisation of scuttle and dash isolation for the 40/50 chassis. | 12th May 1925 | Box 171 \ 3 img254 | |
| Approval signature sheet for the standardisation of coachwork features. | 25th May 1925 | Box 171 \ 3 img255 | |
| Standardisation sheet proposing a total isolation scheme for the 'V' series scuttle. | 12th May 1925 | Box 171 \ 3 img256 | |
| Standardisation approval sheet for a design improvement to the 'V' Series EAC Chassis. | 15th Jun 1925 | Box 171 \ 3 img257 | |
| Standardisation of chassis parts, specifically steering pivot pins and bushes, to reduce wear. | 10th Sep 1925 | Box 171 \ 3 img258 | |
| Standardisation of chassis parts, specifically the cross steering levers. | 29th Sep 1925 | Box 171 \ 3 img259 | |
| Standardisation of the low speed jet control cone for the Phantom. | 14th Oct 1925 | Box 171 \ 3 img260 | |
| Standardisation document for a modified exhaust silencer intended to reduce noise. | 2nd Dec 1925 | Box 171 \ 3 img261 | |
| Standardisation of Chassis Parts regarding Lodge Detachable Plugs. | 11th Nov 1925 | Box 171 \ 3 img262 | |
| The standardisation of a modified exhaust silencer and its associated costs. | 22th Dec 1925 | Box 171 \ 3 img263 | |
| Standardisation of chassis parts for modified connecting rod bearings. | 10th Dec 1925 | Box 171 \ 3 img264 | |
| Standardisation of a slipper wheel fitted with dowel pegs to improve reliability. | 10th Dec 1925 | Box 171 \ 3 img265 | |
| Standardisation of the cutout operating mechanism for chassis parts to improve reliability. | 10th Dec 1925 | Box 171 \ 3 img266 | |
| Standardisation proposal for replacing leather with metal covers for rear brake adjustment. | 10th Dec 1925 | Box 171 \ 3 img267 | |
| Log sheet tracking the progress and status of various technical modifications and components. | 6th Feb 1936 | Box 171 \ 4 img001 | |
| Log sheet tracking modifications and progress on various vehicle chassis. | 4th Jun 1935 | Box 171 \ 4 img002 | |
| Log tracking the progression of chassis modifications and parts through various stages or departments. | 20th Jan 1936 | Box 171 \ 4 img003 | |
| Log sheet tracking the status and dispatch of work on various Bentley chassis. | 30th Jan 1936 | Box 171 \ 4 img004 | |
| Tracking log for engineering drawing revisions and completions across various departments. | 12th Apr 1935 | Box 171 \ 4 img005 | |
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