Rolls-Royce Archives
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
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DescriptionDateIdentifier
Requesting the fitting of dynamo No. 43F1 to 21.G.IV.21th Oct 1935Box 168a \ 3  img238
Request to have a commutator skimmed on a dynamo removed from car B.23AE.25th Oct 1935Box 168a \ 3  img239
Modifications to an improved Dynamo Battery Automatic Cutout.25th Oct 1935Box 168a \ 3  img240
The difficulty of adding extra turns to series winding and an investigation into a reverse current issue.25th Oct 1935Box 168a \ 3  img241
Request to have two dynamos overhauled (one from vehicle 21.G.IV, one from a bench test) and the commutator skimmed.1st Nov 1935Box 168a \ 3  img242
Requesting the urgent alteration of a high-speed dynamo rig to fit the new Phantom III dynamo.6th Nov 1935Box 168a \ 3  img243
Ignition coil and dynamo failures on a large bore Bentley engine during endurance tests.8th Nov 1935Box 168a \ 3  img244
Dynamo failure on a large bore Bentley due to road dust and excessive brush wear.12th Nov 1935Box 168a \ 3  img245
Confirming an arrangement to alter a dynamo rig to accommodate a new dynamo for testing.12th Nov 1935Box 168a \ 3  img246
Query regarding the condition of a flexible coupling on a dynamo fitted to a Phantom III chassis.18th Nov 1935Box 168a \ 3  img247
Dynamo modification on Chassis No. 36-DC for a customer named Kenyon.25th Nov 1935Box 168a \ 3  img248
Costly modifications to improve the output of a dynamo for chassis No. 36-DC.28th Nov 1935Box 168a \ 3  img249
Letter requesting a meeting with C.A.V. - Bosch Ltd. to discuss ventilated dynamos for Bentley chassis.30th Nov 1935Box 168a \ 3  img250
Letter from C.A.V-BOSCH regarding their inability to supply ventilated dynamos for a Bentley chassis, recommending J. Lucas of Birmingham instead.3rd Dec 1935Box 168a \ 3  img251
Suggested alterations to the dynamo for chassis 35-DC, requesting details and pricing.3rd Dec 1935Box 168a \ 3  img252
Request to send a small fan-ventilated R.R. dynamo with a tachometer drive to Messrs. Joseph Lucas Ltd. on loan.5th Dec 1935Box 168a \ 3  img253
Letter to Joseph Lucas, Ltd. regarding a small fan ventilated dynamo for a Bentley chassis.5th Dec 1935Box 168a \ 3  img254
Request to have the dynamo on the single cylinder test house overhauled as it is giving trouble.5th Dec 1935Box 168a \ 3  img255
Discharged battery and potential starter issue for chassis B.136.AH.7th Dec 1935Box 168a \ 3  img256
Letter from Joseph Lucas Ltd. regarding a dynamo fitted to a Bentley chassis.7th Dec 1935Box 168a \ 3  img257
Recommendation to supply a new geared starter motor and trickle charger for Chassis B.136-AH due to starting difficulties.10th Dec 1935Box 168a \ 3  img258
Modifications and parts list for the dynamo on the 25/29 HP Chassis.13th Dec 1935Box 168a \ 3  img259
Index page listing sections for electrical components and their corresponding document numbers.13th Dec 1935Box 168a \ 3  img260
Request to have dynamo No.G.7.T repaired by resoldering the commutator and fitting new brushes and bearings.14th Dec 1935Box 168a \ 3  img261
Cover letter for the production inspection and test specification for the Phantom III dynamo.10th Jan 1936Box 168a \ 3  img262
Specification for the inspection and testing of a large shunt dynamo.7th Jan 1930Box 168a \ 3  img263
Instructions for testing springs, brushes, and the insulation resistance of a machine.7th Jan 1930Box 168a \ 3  img264
Procedure for the main bedding of dynamo brushes.7th Jan 1930Box 168a \ 3  img265
Test procedure for a dynamo, detailing final bedding of brushes, load testing, and noise checks.7th Jan 1930Box 168a \ 3  img266
Inspection and testing procedures for an electrical machine, possibly a dynamo.16th Jan 1936Box 168a \ 3  img267
Meeting notes regarding the design and testing of a new dynamo armature and brush gear.16th Jan 1936Box 168a \ 3  img268
Determining the loading and speed limits of a Bentley dynamo and investigating oiling issues.16th Jan 1936Box 168a \ 3  img269
Stiffened dynamo end bracket to prevent vibration on the 25/30 HP chassis.20th Jan 1936Box 168a \ 3  img270
Investigation into the difficulty of improving the dynamo armature for a Phantom III.21th Jan 1936Box 168a \ 3  img271
Proposal to modify a Phantom III dynamo bearing bracket to increase airflow.22th Jan 1936Box 168a \ 3  img272
Proposal for an experimental test on a Phantom III dynamo armature with enamelled and paper-covered wire.27th Jan 1936Box 168a \ 3  img273
Instruction to modify the third high-speed dynamo test rig in the Electrical Laboratory.28th Jan 1936Box 168a \ 3  img274
Cost comparison for manufacturing different dynamo strap types.3rd Feb 1936Box 168a \ 3  img275
Tests conducted on a Bentley dynamo to determine the extent of oil leakage from the tachometer drive.13th Feb 1936Box 168a \ 3  img276
Fluctuating lights caused by an erratic voltage regulator unit.12th Feb 1936Box 168a \ 3  img277
Customer complaint letter detailing recurring faults with a car, including erratic charging and a seizing brake bush.18th Feb 1936Box 168a \ 3  img278
Complaint case memo regarding ongoing issues with Mr. Verrells' car, specifically a sticky brake and erratic dynamo charging.20th Feb 1936Box 168a \ 3  img279
Letter discussing a faulty regulator and suggesting communication with E.K. Cole Ltd. and Mr. Verrells.20th Feb 1936Box 168a \ 3  img280
Letter to a customer regarding stiffness in the brake mechanism and an incorrectly fitted wireless set on car 163-TA.20th Feb 1936Box 168a \ 3  img281
Concluding page of a letter concerning a potentially faulty voltage regulator.21th Feb 1936Box 168a \ 3  img282
Request for parts and modifications to test a revised oil retaining scheme on a Bentley Dynamo.21th Feb 1936Box 168a \ 3  img283
Examination and required repairs for a Dynamo LVX from car 31-EX.22th Jan 1936Box 168a \ 3  img284
Modifications to battery ignition dynamos for Exe, Vulture, Merlin and Kestrel engines.22th Feb 1936Box 168a \ 3  img285
Letter regarding a dynamo charge system fault on a Phantom II car, discussing regulator issues and noise suppression methods.24th Feb 1936Box 168a \ 3  img286
Recommendations to resolve an electrical issue by replacing the voltage regulator and examining the dynamo circuit.5th Mar 1936Box 168a \ 3  img287
Parts required for a stiffened dynamo end bracket on a 25/30 HP Chassis.5th Mar 1936Box 168a \ 3  img288
Oil getting onto the commutator and brush gear of the ventilated type dynamo on 4¼ litre Bentley chassis.12th May 1934Box 168a \ 3  img289
Requesting the overhaul of a large shunt dynamo (No. 2, S.) removed from a car.16th Mar 1936Box 168a \ 3  img290
Parts list for testing a 'Phantom III' Dynamo under R.R. Scheme 911.20th Mar 1936Box 168a \ 3  img291
Parts list for Bearing Brackets and information on dynamo provisions.20th Mar 1936Box 168a \ 3  img292
Cover letter for blueprints of a 'Phantom III' Dynamo Armature with 36 slots.27th Mar 1936Box 168a \ 3  img293
Request for an adaptor to enable the use of both old and new type dynamos on modified test rigs.2nd Apr 1936Box 168a \ 3  img294
Blueprints for Dynamo Suspension parts for the 25/30 HP Bentley and Wraith II.6th Apr 1936Box 168a \ 3  img295
Confirming a successful test on a modified dynamo for the 20/25 model to eliminate noise.8th Apr 1936Box 168a \ 3  img296
Instructions for fitting vellumoid paper washers to a Bentley Dynamo Oil Retainer to ensure oil-tight joints.15th Apr 1936Box 168a \ 3  img297
Requesting the overhaul of a failed dynamo from test bed 2 C.25th Mar 1936Box 168a \ 3  img298
The protection of a ventilated dynamo from petrol spillage from the Stromberg carburetter.27th Jan 1936Box 168a \ 3  img299
Instructions for fitting a safeguard shield for the carburetter and a new louvred cover for the dynamo.2nd May 1936Box 168a \ 3  img300
Comparative heating tests on a ventilated dynamo.5th May 1936Box 168a \ 3  img301
Requesting the removal and overhaul of a dynamo on Car B-35-AE due to sticking brushes.21th May 1936Box 168a \ 3  img302
Requesting the overhaul of dynamo No. A.M. 55 after completing a 150-hour endurance test.16th Jun 1936Box 168a \ 3  img303
Experimental department report on the prevention of oil leakage on a Bentley dynamo commutator.17th Jun 1936Box 168a \ 3  img304
Investigation into oil leakage onto the commutator of a Bentley dynamo and subsequent tests on a modified unit.17th Jun 1936Box 168a \ 3  img305
Test report summary detailing observations on oil leakage from joints, washers, seals, and the condition of brushes.17th Jun 1936Box 168a \ 3  img306
Letter to H.F. Hamilton in France requesting more information regarding a dynamo failure on vehicle 32-EX.23th Jun 1936Box 168a \ 3  img307
Dynamo failure on a Paris Bentley Trials car B-60-GA due to lack of clearance.9th Jul 1936Box 168a \ 3  img308
Blueprint of a Dynamo's ventilator end from a Bentley, detailing a short circuit failure.9th Jul 1936Box 168a \ 3  img309
Modification scheme for a dynamo end cover on a 25/30 HP chassis to prevent petrol ingress from the carburetter.27th Jun 1936Box 168a \ 3  img310
Directive regarding a modified dynamo end cover for the 25/30 HP chassis to prevent petrol ingress from the carburetter.27th Jun 1936Box 168a \ 3  img311
Request for necessary repairs to a dynamo before fitting it to car 18-G-IV.29th Jun 1936Box 168a \ 3  img312
Letter from Bosch detailing prices for lighting and starting system components.6th Aug 1936Box 168a \ 3  img313
Letter from Bosch Limited seeking clarification on Dynamo specifications for an order.6th Aug 1936Box 168a \ 3  img314
Request to build a second armature for an Experimental Phantom III Dynamo with modified specifications.17th Aug 1936Box 168a \ 3  img315
Blueprint R.R.Sch.972 for a revised Oil Plug and Oil Level Gauge for the Bentley Dynamo Tachometer Drive.1st Sep 1936Box 168a \ 3  img316
Cover letter for the production specification of inspection and tests for the Dynamo on Bentley and 25/30 HP Chassis.24th Sep 1936Box 168a \ 3  img317
Inspection and testing procedures for a small shunt dynamo.24th Sep 1936Box 168a \ 3  img318
Instructions and notes on dynamo maintenance, focusing on springs, brushes, and running tests.24th Sep 1936Box 168a \ 3  img319
Instructions for final bedding of brushes and running tests on a dynamo.24th Sep 1936Box 168a \ 3  img320
Test procedures for a dynamo, including open circuit, load, and insulation checks.8th Oct 1936Box 168a \ 3  img321
Preliminary tests on the Phantom 111 Dynamo with improved brush gear and a proposal for further improvements.8th Oct 1936Box 168a \ 3  img322
Modifications and performance improvements for the Phantom III Dynamo.6th Oct 1936Box 168a \ 3  img323
Preliminary bench tests for a Phantom III Dynamo, detailing performance improvements and proposing further modifications.5th Oct 1936Box 168a \ 3  img324
Letter from Peto & Radford Ltd. to Mr. West regarding Kathanode type batteries with glass wool separation.8th Oct 1936Box 168a \ 3  img325
Cover memo for an attached report received from G.W. Hancock.29th Oct 1936Box 168a \ 3  img326
Electrical complaints on the Phantom III, specifically dynamo failure due to faulty fuses and short-circuiting in the foot switch.26th Nov 1936Box 168a \ 3  img327
Instruction for a Delco-Remy governor for a C.15 unit with the same advance characteristic as one for a C.16.26th Nov 1936Box 168a \ 3  img328
The dispatch of a drawing for a Delco Remy Ignition Distributor, noting recent beneficial modifications.27th Nov 1936Box 168a \ 3  img329
Request to return a Rotax W.C.F. generator for examination and report after a 100-hour type test on a Merlin 'G' 3 engine.5th Dec 1936Box 168a \ 3  img330
Dynamo failure on car B.23.AE due to grease build-up, requesting a full overhaul.8th Dec 1936Box 168a \ 3  img331
On the ventilation testing of a louvred dynamo end cover for the 25/30 HP model.24th Dec 1936Box 168a \ 3  img332
Standardisation of parts document for a dynamo cut-out with double contacts for the Phantom III.15th Jan 1937Box 168a \ 3  img333
Cost estimate and production note for standardizing a feature on chassis.18th Apr 1940Box 168a \ 3  img334
Standardisation report for a dynamo cut-out with double contacts to reduce volt-drop and overheating.15th Jan 1937Box 168a \ 3  img335
Cost estimation and production note for standardising a new feature on three chassis types.15th Jan 1937Box 168a \ 3  img336
Standardisation of a Dynamo Cut-out with Double Contacts to reduce volt-drop and overheating.15th Jan 1937Box 168a \ 3  img337


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