| Description | Date | Identifier | |
| Test procedures for Teazer Torque and Main Load on a motor. | 24th Oct 1933 | Box 62 \ 1 scan0186 | |
| Test procedures for motor brushes and intermittent load performance. | 24th Oct 1933 | Box 62 \ 1 scan0187 | |
| Test procedures for pinion examination and insulation breakdown. | 24th Oct 1933 | Box 62 \ 1 scan0188 | |
| Test results for a Phantom II starter motor fitted with an experimental 29-slot armature. | 24th Oct 1933 | Box 62 \ 1 scan0189 | |
| Issues with a 40-50 HP starter motor test. | 28th Oct 1933 | Box 62 \ 1 scan0190 | |
| Request to assemble experimental armature and pole pieces for a 40/50 starter motor test. | 30th Oct 1933 | Box 62 \ 1 scan0191 | |
| Comparing the quality of stamped armature plates from suppliers Baldwin's and Sankey's. | 2nd Nov 1933 | Box 62 \ 1 scan0192 | |
| Impracticability of producing a Phantom II Chassis starter motor pinion from N.C.M material. | 3rd Nov 1933 | Box 62 \ 1 scan0193 | |
| Testing special low carbon steel for a Bentley starter motor pole. | 6th Nov 1933 | Box 62 \ 1 scan0194 | |
| Minor issues with a Bentley following a test drive, focusing on the starter, fuel tank, bonnet, and steering. | 7th Nov 1933 | Box 62 \ 1 scan0195 | |
| The testing of new stamped slotted armature plates for starter motors to increase efficiency and reduce costs. | 8th Nov 1933 | Box 62 \ 1 scan0196 | |
| Fitting a heavier gauge starter motor cable on a Bentley chassis. | 8th Nov 1933 | Box 62 \ 1 scan0197 | |
| Poor cold starting on a Bentley, arranging for tests on an experimental chassis. | 9th Nov 1933 | Box 62 \ 1 scan0198 | |
| Decision not to use punched plates on a 40/50 motor. | 10th Nov 1933 | Box 62 \ 1 scan0199 | |
| Request to test a new Bensport starter motor. | 13th Nov 1933 | Box 62 \ 1 scan0200 | |
| Test report detailing starter motor performance on the 'Blue Bensport'. | 15th Nov 1933 | Box 62 \ 1 scan0201 | |
| Bench tests for an improved friction drive on a Bentley starter. | 20th Nov 1933 | Box 62 \ 1 scan0202 | |
| Potential improvements to the 4.75' Bentley starter motor. | 20th Nov 1933 | Box 62 \ 1 scan0203 | |
| Comparative cold starting tests for two Bentley cars. | 20th Nov 1933 | Box 62 \ 1 scan0204 | |
| Sending the production specification of inspection and test for the new Bentley starter motor. | 22th Nov 1933 | Box 62 \ 1 scan0205 | |
| Specification document detailing the inspection and testing procedures for a Bentley 3½ Litre starter motor. | 16th Nov 1933 | Box 62 \ 1 scan0206 | |
| Test procedures for a motor, including light, load, and intermittent load tests. | 16th Nov 1933 | Box 62 \ 1 scan0207 | |
| Notes on testing procedures for commutators and brushes, including inspection criteria and load test methods. | 16th Nov 1933 | Box 62 \ 1 scan0208 | |
| Test procedures for an insulation breakdown test and a mechanical examination. | 16th Nov 1933 | Box 62 \ 1 scan0209 | |
| Specification of test and inspection for a Bentley 3½ Litre starter motor with a Bijur drive. | 16th Nov 1933 | Box 62 \ 1 scan0210 | |
| Letter to Joseph Lucas Ltd. arranging a meeting regarding a Bentley freezing test and to discuss regulators or dynamos. | 23th Nov 1933 | Box 62 \ 1 scan0211 | |
| Standardisation of parts for a starter motor, specifying the use of stamped slotted armature plates. | 2nd Nov 1933 | Box 62 \ 1 scan0212 | |
| Standardisation of a starter motor using stamped slotted armature plates. | 2nd Nov 1933 | Box 62 \ 1 scan0213 | |
| Thank you letter to Messrs Joseph Lucas Ltd. regarding freezing tests and the use of their freezing chamber. | 25th Nov 1933 | Box 62 \ 1 scan0214 | |
| Cold starting tests performed on a Bentley chassis. | 25th Nov 1933 | Box 62 \ 1 scan0215 | |
| Cold starting tests for a Bentley engine, discussing issues and proposed improvements. | 25th Nov 1933 | Box 62 \ 1 scan0216 | |
| Letter from Joseph Lucas Limited regarding refrigerator tests on a Bentley car. | 28th Nov 1933 | Box 62 \ 1 scan0217 | |
| Diagrammatic view from the commutator end of a 20HP 5' starter motor showing positive rotation. | 5th Dec 1928 | Box 62 \ 1 scan0218 | |
| The startability test of a 'Bensport' Bentley car in a refrigerator. | 27th Nov 1933 | Box 62 \ 1 scan0219 | |
| Starter test report for a 1933 Bentley 'Bensport' car. | 27th Nov 1933 | Box 62 \ 1 scan0220 | |
| Letter to Joseph Lucas Ltd. arranging further freezing tests on a Bentley chassis, including headlamps and starting. | 30th Nov 1933 | Box 62 \ 1 scan0221 | |
| Letter discussing arrangements for testing new combined stop and tail lamps. | 30th Nov 1933 | Box 62 \ 1 scan0222 | |
| Letter from Joseph Lucas Ltd. regarding the testing of a C.A.V.-Shunt Dynamo Regulator Unit and a 'Bensport' Bentley starter. | 30th Nov 1933 | Box 62 \ 1 scan0223 | |
| Letter from Joseph Lucas Limited detailing starter motor and cranking test results. | 30th Nov 1933 | Box 62 \ 1 scan0224 | |
| Issuing instructions for the improved power Starter Motor to R.R.Scheme 508. | 13th Dec 1933 | Box 62 \ 1 scan0225 | |
| Request to urgently produce a Bentley starter motor to replace an underpowered existing motor. | 14th Dec 1933 | Box 62 \ 1 scan0226 | |
| Test results and specification adjustments for the Bentley starter motor. | 16th Dec 1933 | Box 62 \ 1 scan0227 | |
| Amending the Bentley Starter Motor Specification regarding load torque and minimum speed figures. | 18th Dec 1933 | Box 62 \ 1 scan0228 | |
| Feasibility of fitting an improved starter motor to the first 15 Bentley cars. | 8th Jun 1934 | Box 62 \ 1 scan0229 | |
| Recommendation to fit new up-to-date starter motors to the first 15 Bentley chassis. | 7th Feb 1934 | Box 62 \ 1 scan0230 | |
| Clarifying that the first 15 Bentley cars are fitted with a new starter motor, despite other related parts not being standardised. | 9th Feb 1934 | Box 62 \ 1 scan0231 | |
| Fitting modified starter motors to the first 15 Bentley production chassis. | 9th Feb 1934 | Box 62 \ 1 scan0232 | |
| Increasing the gear ratio of starter motors by incorporating a reduction gear box, with specific reference to the Spectre model. | 9th Feb 1934 | Box 62 \ 1 scan0233 | |
| The modified starter motors for the first 15 Bentley production cars. | 12th Feb 1934 | Box 62 \ 1 scan0234 | |
| Request to manufacture a set of four Bentley starter motor poles from Lohys material for comparative tests. | 16th Mar 1934 | Box 62 \ 1 scan0235 | |
| The initial test results for the Bentley starter motor, noting suboptimal performance and proposed improvements to the field winding. | 20th Mar 1934 | Box 62 \ 1 scan0236 | |
| Request to obtain a new pinion spring for a Bosch starter motor from an Alfa Romeo. | 3rd Jul 1932 | Box 62 \ 1 scan0237 | |
| Technical query and response regarding starter motor measurements for model 28-EX. | 12th Apr 1934 | Box 62 \ 1 scan0238 | |
| Technical memo discussing starter motor measurements and potential issues on model 28-EX. | 20th Apr 1934 | Box 62 \ 1 scan0239 | |
| Request to examine a starter motor because the drive is sticking during disengagement. | 20th Apr 1934 | Box 62 \ 1 scan0240 | |
| Tests and results for new Bentley starter motor poles made from special Lohys steel. | 24th Apr 1934 | Box 62 \ 1 scan0241 | |
| Request to fit a new Bensport starter motor to chassis 1.B.IV. | 25th Apr 1934 | Box 62 \ 1 scan0242 | |
| Confirming a request for tests to find the slipping torque of the Bijur starter pinion for the Bentley and 20/25 models. | 25th Apr 1934 | Box 62 \ 1 scan0243 | |
| Amendment to the production specification for a Bentley starter motor fitted to a 20/25 chassis. | 27th Apr 1934 | Box 62 \ 1 scan0244 | |
| Request to order a starter motor pinion for a 1934 Buick car. | 30th Apr 1934 | Box 62 \ 1 scan0245 | |
| Modification scheme for the Bentley Starter Motor, including a new drawing and gear ratio. | 30th Apr 1934 | Box 62 \ 1 scan0246 | |
| New Bentley starter motor with increased power. | 30th Apr 1934 | Box 62 \ 1 scan0247 | |
| The bench testing of a modified Bentley starter motor for increased stalling torque and improved cold starting. | 30th Apr 1934 | Box 62 \ 1 scan0248 | |
| Test curves for a Bently No-1 starter motor, showing performance with a modified field winding. | 7th May 1934 | Box 62 \ 1 scan0249 | |
| The removal and adjustment of a 28-EX starter motor due to a chipped flywheel. | 7th May 1934 | Box 62 \ 1 scan0250 | |
| Tests of a P.V. 40/50 Tank Engine starter motor's operation when inclined at an angle. | 9th May 1934 | Box 62 \ 1 scan0251 | |
| Feasibility of equipping a 40/50 Phantom II tank engine with a 20/25 type starter gear. | 9th May 1934 | Box 62 \ 1 scan0252 | |
| The supply of Bentley starter motor poles and requesting a standardisation sheet. | 1st Jun 1934 | Box 62 \ 1 scan0253 | |
| Calculations regarding a solenoid for operating the starter motor on a Phantom II tank engine. | 5th Jun 1934 | Box 62 \ 1 scan0254 | |
| Rapid disengagement of starter motors, specifically relating to the helix angle of the flywheel gear. | 19th Jun 1933 | Box 62 \ 1 scan0255 | |
| Modifications to the 40/50 Tank Engine starter motor to work at a 45-degree inclination. | 28th Jun 1934 | Box 62 \ 1 scan0256 | |
| Request to test a new Bentley starter motor with Bendix drive on the B.10 unit test bed. | 5th Jul 1934 | Box 62 \ 1 scan0257 | |
| Experimental department report on a Bentley starter motor with a two-speed reduction gear. | 6th Jul 1934 | Box 62 \ 1 scan0258 | |
| The testing of a new Bentley starter motor with a two-speed gear. | 6th Jul 1934 | Box 62 \ 1 scan0259 | |
| Standardisation of starter motor magnet poles made in Sankeys 'Lohys' Iron for Bentley. | 4th Jun 1934 | Box 62 \ 1 scan0260 | |
| Cost estimate and production details for the 1st chassis in the 'C' series. | 4th Jun 1934 | Box 62 \ 1 scan0261 | |
| Standardisation of starter motor magnet poles made in Sankeys 'Lohys' Iron. | 4th Jun 1934 | Box 62 \ 1 scan0262 | |
| Cost estimation for extra jigs, tools, and equipment for the 'F' series chassis. | 14th Jul 1934 | Box 62 \ 1 scan0263 | |
| The bench testing and fitting of a two-speed gear starter motor for a Bentley chassis. | 14th Jul 1934 | Box 62 \ 1 scan0264 | |
| Request to modify a starter motor solenoid cap and fit a new spring to test its 'cushioning' effect. | 19th Jul 1934 | Box 62 \ 1 scan0265 | |
| Request to arrange for a special field winding for an experimental Spectre starter motor. | 20th Jul 1934 | Box 62 \ 1 scan0266 | |
| Arranging cold starting tests for a new two-speed starter at Messrs. Lucas's freezing chamber. | 30th Aug 1934 | Box 62 \ 1 scan0267 | |
| Request for two additional two-speed Bentley starter motors for testing on other chassis due to successful performance. | 5th Sep 1934 | Box 62 \ 1 scan0268 | |
| Request for a set of starter motor field coils for an experimental Spectre starter motor. | 25th Sep 1934 | Box 62 \ 1 scan0269 | |
| Poor finish of the 20/25 and Bentley starter motor case compared to the dynamo. | 26th Sep 1934 | Box 62 \ 1 scan0270 | |
| Finishing process, grinding versus turned finish, for magnet cases on specific models. | 28th Sep 1934 | Box 62 \ 1 scan0271 | |
| Experiment to overcome the Bijur drive sticking in gear on the Bentley starter motor. | 2nd Oct 1934 | Box 62 \ 1 scan0272 | |
| Requesting the transfer of a two-speed geared starter motor to a Streamlined Bentley. | 4th Oct 1934 | Box 62 \ 1 scan0273 | |
| Request to put in hand parts for a Starter Motor with Reduction Gear for a 10,000-mile test car. | 30th Oct 1934 | Box 62 \ 1 scan0274 | |
| Requesting two further sets of parts be made for a Bentley geared starter motor. | 6th Nov 1934 | Box 62 \ 1 scan0275 | |
| Request for a catalogue of the latest Scintilla Starter Motors and voltage controlled dynamos. | 8th Nov 1934 | Box 62 \ 1 scan0276 | |
| The booking of the Messrs. Lucas Cold Room for a Bentley cold starting test. | 12th Nov 1934 | Box 62 \ 1 scan0277 | |
| Letter to Joseph Lucas Ltd. regarding motor specifications for a Bentley chassis and a request for experimental regulators. | 16th Nov 1934 | Box 62 \ 1 scan0278 | |
| Request to produce parts for a trial of a modified Spectre starter motor to increase power. | 19th Nov 1934 | Box 62 \ 1 scan0279 | |
| Request to order altered starter motor armature plates from Sankeys Ltd. for experimental purposes. | 27th Nov 1934 | Box 62 \ 1 scan0280 | |
| Request for one set of experimental poles to be made for a Spectre starter motor, as per the attached drawing. | 27th Nov 1934 | Box 62 \ 1 scan0281 | |
| Standardisation of parts for a starter motor with reduction gear, LeC.3892. | 5th Nov 1934 | Box 62 \ 1 scan0282 | |
| Estimated cost for extra jigs, tools, and equipment to bring the 'E' series chassis into production. | 1st Oct 1934 | Box 62 \ 1 scan0283 | |
| Modifications to a Bentley starter motor to resolve issues with the drive sticking in gear. | 18th Dec 1934 | Box 62 \ 1 scan0284 | |
| The starter motor drive for chassis 5.B.IV & 1.B.IV, requesting the production of two modified drive stops. | 27th Dec 1934 | Box 62 \ 1 scan0285 | |
| | | | |
