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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Assessment of the cost and production readiness for extra jigs, tools, and equipment for the 'G' series chassis.17th Sep 1935Box 168 \ 1  img230
The fitting of new H.T. ignition cables to production chassis and the associated problems and proposed solutions.19th Nov 1935Box 168 \ 1  img231
Dimensional specifications for H.T. ignition cables for production chassis.18th Nov 1935Box 168 \ 1  img232
Sizing of ignition wire tubes for large bore Bentley and 25/29 HP models.19th Nov 1935Box 168 \ 1  img233
Adjustment of conductor sizes for wiring on various car chassis to use smaller conduits.27th Nov 1935Box 168 \ 1  img234
Comparison of specification and road test results for various H.T. chassis cables.9th Nov 1935Box 168 \ 1  img235
List of electrical circuits and their corresponding cable sizes for all chassis types, with handwritten amendments.27th Nov 1935Box 168 \ 1  img236
Replying to a proposal with recommendations for wiring cables.29th Nov 1935Box 168 \ 1  img237
List of electrical circuits and their respective cable sizes for all chassis.27th Nov 1935Box 168 \ 1  img238
Conductor wiring sizes for various chassis components, including switches, gauges, and lamps.2nd Dec 1935Box 168 \ 1  img239
Ignition wiring and vertical trunk tubes for the Phantom III.3rd Dec 1935Box 168 \ 1  img240
Invoice from Henry Wiggin & Co. Ltd. for Brightray Wire, requesting payment authorization.9th Dec 1935Box 168 \ 1  img241
Request to place an order for two different gauges of brightray wire from Messrs. Henry Wiggin & Co. Ltd.10th Dec 1935Box 168 \ 1  img242
New wiring and fittings features and a list of cable prints for the 25/30 HP Chassis.16th Dec 1935Box 168 \ 1  img243
Request to obtain a sample of a new screened H.T. cable from Ward & Goldstone, Ltd.28th Jan 1936Box 168 \ 1  img244
New drawings and existing parts for Phantom III chassis wire fittings.29th Jan 1936Box 168 \ 1  img245
Internal request to order 'Superfine' copper wire from Messrs. Concordia Ltd.30th Jan 1936Box 168 \ 1  img246
Standardisation of H.T. Ignition Cable to R.R. Specification No. 271.11th Nov 1935Box 168 \ 1  img247
Cost estimate note regarding the production of the 'L' series chassis.6th Feb 1936Box 168 \ 1  img249
Letter from British Insulated Cables Ltd. regarding a sample of Black Systoflex Sleeving.6th Feb 1936Box 168 \ 1  img250
Letter regarding the decision to charge for specially manufactured Thiokol Protected Ignition Cable.11th Feb 1936Box 168 \ 1  img251
Order for one pound of 24 S.W.G. Glowray wire.18th Feb 1936Box 168 \ 1  img252
Requesting a covering order for samples from British Insulated Cables Ltd.18th Feb 1936Box 168 \ 1  img253
List of special wiring parts required for the Phantom III Long Wheelbase Chassis.21th Feb 1936Box 168 \ 1  img254
Letter to a supplier regarding specifications for a sample sheath and sleeving.27th Jan 1936Box 168 \ 1  img255
Order for two types of copper wire from Messrs. Cancordia Ltd.4th Mar 1936Box 168 \ 1  img256
Requesting a suitable fuse box for the electrical wiring of a ramp test rig, specifying a type used on the Phantom II chassis.29th Apr 1936Box 168 \ 1  img257
The need to modify the wiring on chassis GAE-20 to suit a new dynamo.4th May 1936Box 168 \ 1  img258
Request to order tinned-copper fuse wire for the Electrical Laboratory.24th Jun 1936Box 168 \ 1  img259
The failure of plug leads in a 22 G.V. model, detailing causes and temporary solutions.26th Jun 1936Box 168 \ 1  img260
Sample of high tension wire intended to overcome insulation failure.2nd Jul 1936Box 168 \ 1  img261
Urgent modification to the Bentley & 25/30 High Tension Ignition Rotor die to address on-road failures.6th Jul 1936Box 168 \ 1  img262
Road test for Professor Dodds' Bentley, detailing misfiring and clutch issues.29th Jul 1936Box 168 \ 1  img263
Customer complaints caused by faulty ignition cables and a recommendation to use a previously developed improved cable.29th Jul 1936Box 168 \ 1  img264
Letter from The Concordia Electric Wire Co. Ltd. confirming the dispatch of a reel of 44 swg Enamelled Copper Wire.31th Jul 1936Box 168 \ 1  img265
Issues with new, larger diameter high-tension ignition cables not fitting standard conduits and the decision to introduce them with larger conduits.31th Jul 1936Box 168 \ 1  img266
Despatch request for a sample piece of brass tubing with thermo couple wire to Concordia Electric Wire Co. Ltd.1st Aug 1936Box 168 \ 1  img267
The specification change for chassis ignition cables from maconite to Helsby rubber.3rd Aug 1936Box 168 \ 1  img268
Request for the manufacture of four Bentley ignition governor springs for an E.R. Hall's T.T. Bentley Engine.11th Aug 1936Box 168 \ 1  img269
Road testing of a new ozone-proof H.T. wire set manufactured by Messrs. Johnson and Phillips.15th Aug 1936Box 168 \ 1  img270
Request to despatch a set of H.T. ignition cables and steel conduit for Bentley chassis 6-B-1V.15th Aug 1936Box 168 \ 1  img271
Requesting the despatch of ignition cables to France for a 10,000-mile trial on chassis 6-B-SV.17th Aug 1936Box 168 \ 1  img272
Changeover to Helsby high tension wires and the instruction to scrap existing stocks of maconite cable.17th Sep 1936Box 168 \ 1  img273
Continued use of faulty Maconinte high tension wire despite issues in service.15th Sep 1936Box 168 \ 1  img274
Complaints of the propeller shaft fouling the battery cable conduit on a Phantom III chassis.27th Nov 1936Box 168 \ 1  img275
Internal request to place an order for enamelled single paper covered copper wire from Messrs. Concordia.18th Sep 1936Box 168 \ 1  img276
Request to fit Johnson & Philips H.T. Cable to specific Phantom III and Bentley chassis.14th Oct 1936Box 168 \ 1  img277
Complaint that a wiring conduit on the Phantom III chassis is fouling the propeller shaft.27th Nov 1936Box 168 \ 1  img278
List of required cables for the revised position of the junction box on a Phantom III.1st Jan 1937Box 168 \ 1  img279
The issuance of blueprints and parts for the Wraith II frame wiring and fittings.8th Jan 1937Box 168 \ 1  img280
First failure of a Helsby Cable taken from chassis GGM-31 after 750 miles.26th Jan 1937Box 168 \ 1  img281
Letter to a cable supplier regarding a high-tension cable failure on a Phantom III chassis.1st Feb 1937Box 168 \ 1  img282
Letter from the Royal Aircraft Establishment concerning coil ignition units, requesting loan parts and specific technical details.20th Mar 1937Box 168 \ 1  img283
Letter from the Royal Aircraft Establishment concerning the testing of coil ignition units.20th Mar 1937Box 168 \ 1  img284
Letter from the Air Ministry regarding coil ignition units and screening for engine development sets.29th Mar 1937Box 168 \ 1  img285
Letter to the Royal Aircraft Establishment regarding coil ignition specifications, gear ratios, and component delivery.25th Mar 1937Box 168 \ 1  img286
Letter to the Air Ministry concerning the supply of Coil Ignition Units and related parts.31th Mar 1937Box 168 \ 1  img287
Letter from the Royal Aircraft Establishment regarding coil ignition screens for interference testing on Kestrel and Hart aircraft.1st Apr 1937Box 168 \ 1  img288
Complaint regarding faulty Helsby ignition cable with perished and cracked rubber insulation.2nd Apr 1937Box 168 \ 1  img289
The poor quality of Helsby High Tension Ignition Cable and testing of new samples.5th Apr 1937Box 168 \ 1  img290
Letter to the Royal Aircraft Establishment regarding the delivery of a system for testing.5th Apr 1937Box 168 \ 1  img291
Concluding that enamelled single paper-covered wire is a false economy and should be discontinued.12th Apr 1937Box 168 \ 1  img292
Change in conductor manufacturing standards as advised by the Cable Makers Association.19th Apr 1937Box 168 \ 1  img293
Agreeing to the introduction of improved cables for chassis wiring, replacing the pure rubber type.20th Apr 1937Box 168 \ 1  img294
The Body Lighting and Headlamp Junction Box for the Wraith III Chassis.28th Apr 1937Box 168 \ 1  img295
Breakdown call-out for a 25/30 car, identifying the fault as a broken low tension lead to the coil.14th Jun 1937Box 168 \ 1  img296
Modifications for pipes and wiring on the Wraith III chassis regarding conduits and pipe runs.3rd Nov 1937Box 168 \ 1  img297
Scheme document detailing the pipes and wiring conduits for the Wraith III.1st Dec 1937Box 168 \ 1  img298
Record of the pictorial layout for Bentley 111 wiring.11th Jan 1938Box 168 \ 1  img299
Pipes and wiring conduits scheme F.CD.112 for the Wraith III model.14th Jan 1938Box 168 \ 1  img300
Wiring modification for the Wraith III model.29th Jan 1938Box 168 \ 1  img301
Parts for wiring and fittings for the Wraith 6 Sets.10th Feb 1938Box 168 \ 1  img302
List of parts and assembly instructions for wiring and fittings, which replaces previous Lists of Parts (LOPs).10th Feb 1938Box 168 \ 1  img303
Dispatch of blueprints for Bentley 50 wiring layout and harness.8th Apr 1938Box 168 \ 1  img304
Blueprints and parts for the Bentley 50 Wiring and Fittings.8th Apr 1938Box 168 \ 1  img305
Instructions for ordering various specified electrical cables from Messrs. Lucas.10th Jun 1938Box 168 \ 1  img306
Proposing a new wiring scheme for the Wraith reverse light switch.10th Jun 1938Box 168 \ 1  img307
Failure in the low tension ignition wiring on the Wraith model due to engine movement.20th Jun 1938Box 168 \ 1  img308
Wiring harnesses from Ripaults Ltd. for testing on Bentley and Wraith experimental cars.7th Oct 1938Box 168 \ 1  img309
Proposal for extending the wiring harness from the dash to the rear of the instrument board to create a tidier job.4th Nov 1938Box 168 \ 1  img310
Letter to Joseph Lucas Ltd. regarding car tests and the resistance ratio of a regulator.25th Nov 1938Box 168 \ 1  img311
Letter discussing battery charging rate adjustments, locating lost units, and the return of a borrowed regulator unit.25th Nov 1938Box 168 \ 1  img312
Test observations on a Bentley car fitted with a Lucas electrical harness, measuring voltage and current.30th Nov 1938Box 168 \ 1  img313
Request to fit a new cable between the coil and ballast resistance for chassis B.56.BN due to a broken terminal.30th Nov 1938Box 168 \ 1  img314
Requesting a mock-up for car wiring and electrical equipment due to unclear instructions and a change from wiring harnesses to conduits.6th Jan 1939Box 168 \ 1  img315
Modification details for the footswitch and wiring on B.5, B.50, and Wraith 80 models.9th Jan 1939Box 168 \ 1  img316
Specifying changes to the dash and footswitch wiring, cancelling a previous design.24th Jan 1939Box 168 \ 1  img317
Parts list for the Bentley V dashboard and footswitch wiring scheme.3rd Feb 1939Box 168 \ 1  img318
Parts list for securing tubes to the frame and dash, including ferrules, clips, and fixings.3rd Feb 1939Box 168 \ 1  img319
Wiring scheme for the Bentley 5 dashboard, specifically the engine side, and plans for a bench mock-up.4th Mar 1939Box 168 \ 1  img320
Requesting parts for a dashboard wiring mock-up for the Bentley V Chassis, listing required blueprints.15th Mar 1939Box 168 \ 1  img321
Blueprints for alterations to the regulator and distribution board for the Bentley V Chassis dashboard wiring mock-up.21th Mar 1939Box 168 \ 1  img322
Requesting an update to the obsolete dashboard wiring on car 2.B.50.4th May 1939Box 168 \ 1  img323
Cover letter from General Electric Co. Ltd. for a price booklet on automobile cables.8th May 1939Box 168 \ 1  img324
Blueprints for dash wiring components for the Bentley V, also noted as suitable for the Silver Wraith.5th May 1939Box 168 \ 1  img325
Parts and blueprints for the dash wiring of a Bentley V.31th May 1939Box 168 \ 1  img326
Providing blueprints for a starter cable conduit for the Bentley V & Silver Ripple models.10th Jul 1939Box 168 \ 1  img327
Scheme for ignition wiring on high power engines.2nd Aug 1939Box 168 \ 1  img328
Weight of electrical equipment, specifically headlamps and wiring.24th Aug 1939Box 168 \ 1  img329
Letter from Joseph Lucas Limited regarding samples of Roko Tubing and Empire Tubing.6th Jan 1940Box 168 \ 1  img330


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