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
Expressing disapproval of the way coachbuilders wire accessories on chassis, citing specific examples of poor workmanship.20th Jun 1933Box 168 \ 1  img130
Concern about the wiring of accessories on cars completed by London Coachbuilders.22th Jun 1933Box 168 \ 1  img131
Instruction to build ignition wires for a Goshawk 5 engine with specific cables.7th Jul 1933Box 168 \ 1  img132
Request to test phosphor bronze braided ignition cable on a Goshawk engine.7th Oct 1933Box 168 \ 1  img133
Letter from the Air Ministry regarding the supply and testing of metal braided ignition cables.6th Nov 1933Box 168 \ 1  img134
Successful type test on phosphor bronze braided H.T. ignition cables, recommending their adoption.14th Nov 1933Box 168 \ 1  img135
Letter requesting technical data and samples for cotton covered aluminium wire from The London Electric Wire Co. Ltd.5th Jan 1934Box 168 \ 1  img136
Letter from a supplier regarding the availability of cotton-covered Aluminium Wire and requesting details on its proposed use.8th Jan 1934Box 168 \ 1  img137
Comparative data table for the properties of H.C. Copper and Aluminium.8th Jan 1934Box 168 \ 1  img138
Letter from Remax Cables regarding the specifications and properties of their new H.T. Ignition Cable.13th Jan 1934Box 168 \ 1  img139
Sales letter from Remax Limited regarding a new type of H.T. Cable available in six distinctive colours.13th Jan 1934Box 168 \ 1  img140
Letter and sample of High Tension Cable received from Remax Cables Ltd.15th Jan 1934Box 168 \ 1  img141
Request for a sample spool of Remax H.T. Cable for testing, to be finished in black.16th Jan 1934Box 168 \ 1  img142
Letter to Remax Cables requesting a larger sample spool of Insulated High Tension Cable for testing.17th Jan 1934Box 168 \ 1  img143
Letter from Remax Cables regarding a sample of new lacquered cable.1st Feb 1934Box 168 \ 1  img144
Fitting and testing a direct earth connector for the 20/25 HP and Bentley 10,000 miles test cars.20th Feb 1934Box 168 \ 1  img145
Internal request to order 'Brightray' Nickel Chromium resistance wire from Henry Wiggin & Co. Ltd.10th Apr 1934Box 168 \ 1  img146
Production history and material changes of the Phantom magneto high tension wires, specifically concerning the omission of a heat shield.23th May 1934Box 168 \ 1  img147
Perished high tension wires on a Phantom magneto and related modifications.18th May 1934Box 168 \ 1  img148
Requesting the removal and replacement of magneto H.T. cables from chassis 20-EX and 22-EX for inspection.25th May 1934Box 168 \ 1  img149
Reduction of wiring cable diameters for the 'Spectre' chassis and other models.4th Jun 1934Box 168 \ 1  img150
Proposal to experimentally wire the 'Spectre' and new Bentley 5.B.IV chassis.4th Jun 1934Box 168 \ 1  img151
Order for 10 lbs of copper wire.4th Jun 1934Box 168 \ 1  img152
Investigation into perished and cracked Phantom II Magneto H.T. wiring due to heat issues.6th Jun 1934Box 168 \ 1  img153
Preference for bakelite sparking plug covers for Spectre ignition wiring to safeguard against fire risk.14th Jun 1934Box 168 \ 1  img154
Order for 4 lbs of 22 S.W.G. D.S.C. Copper Wire.14th Jun 1934Box 168 \ 1  img155
Comparing prices for chassis cables and proposing a test purchase from an alternative supplier.20th Jun 1934Box 168 \ 1  img156
Requesting samples of chassis cables from supplier Ward & Goldstone for quality comparison.21th Jun 1934Box 168 \ 1  img157
Letter from Bentley Motors providing the address of a manufacturer for high tension cables.21th Jun 1934Box 168 \ 1  img158
Letterhead for E. Kalker & Co., suppliers of insulated wires and cables from Coventry.22th Jun 1934Box 168 \ 1  img159
Request to obtain a 12 ft park sample of 7 mm H.T. Cable from E.Kalker & Co.22th Jun 1934Box 168 \ 1  img160
Proposal for using smaller diameter cables for the Spectre and other chassis.28th Jun 1934Box 168 \ 1  img161
The preference for an aluminium tube over a steel tube for Phantom II H.T. wiring due to heat conductivity.29th Jun 1934Box 168 \ 1  img162
Modifications to the Spectre engine's ignition wiring to prevent cable breakdown.2nd Jul 1934Box 168 \ 1  img163
Standardisation of an exhaust heat shield for magneto wiring tube and aluminium wiring tube.6th Jun 1934Box 168 \ 1  img164
Estimation of costs and production feasibility for standardizing parts on the 'T' series chassis.6th Jun 1934Box 168 \ 1  img165
Order for wiring tubes.26th Sep 1934Box 168 \ 1  img166
Flexible cable for the 'Spectre' and the issuance of a covering order.28th Sep 1934Box 168 \ 1  img167
The necessary replacement of high tension leads on Bentley chassis.29th Sep 1934Box 168 \ 1  img168
The failure of high tension leads due to swelling and shorting, recommending replacement after 10,000 miles.26th Sep 1934Box 168 \ 1  img169
Faults in the high tension leads of a Bentley chassis, speculating on the cause.2nd Oct 1934Box 168 \ 1  img170
The deterioration of high tension wires on Bentley chassis and the institution of tests to find a superior grade of cable.2nd Oct 1934Box 168 \ 1  img171
Follow-up on the testing of sample chassis cables from Ward & Goldstone Ltd before placing a new order.9th Oct 1934Box 168 \ 1  img172
Instruction to fit a flexible earthing connection for specific chassis and a car, referencing a drawing.10th Oct 1934Box 168 \ 1  img173
Delay in testing chassis cables due to urgent work.10th Oct 1934Box 168 \ 1  img174
Request for the manufacture of one set of chassis wires to drawing E.59055.15th Oct 1934Box 168 \ 1  img175
Letter to British Insulated Cables Ltd. requesting a sample of varnished cotton braided ignition cable for testing.19th Oct 1934Box 168 \ 1  img176
Request to order 50 ft. of Kalker Chassis H.T. Ignition Cable for chassis tests.22th Oct 1934Box 168 \ 1  img177
Letter from British Insulated Cables Ltd. suggesting a specification for high tension ignition cable.29th Oct 1934Box 168 \ 1  img178
Advice note confirming the receipt of 100 yards coil of 'Maconite' Ignition Flex.5th Dec 1934Box 168 \ 1  img179
Request to rewire the H.T. wiring on Bentley Chassis 3.B.IV using new maconite H.T. cable.10th Dec 1934Box 168 \ 1  img180
Parts list for the 'Spectre' wiring scheme, dash fittings, and cables.1st Jan 1935Box 168 \ 1  img181
Continued list of parts for cables and frame fittings.1st Jan 1935Box 168 \ 1  img182
Distributing a blueprint for the 'Spectre' Wiring Diagram, D.75018.9th Jan 1935Box 168 \ 1  img183
Arranging for Spectre ignition wires to be made with a special Cellulose varnished fabric for testing.11th Jan 1935Box 168 \ 1  img184
Letter from H.D. Symons & Co. Ltd. regarding posted samples of 'Symite' High Tension Leads.6th Feb 1935Box 168 \ 1  img185
Order for Eureka resistance wire.18th Feb 1935Box 168 \ 1  img186
Internal request to order quantities of 29 and 30 S.W.G. tinned copper wire.20th Feb 1935Box 168 \ 1  img187
Directive to implement a 500-volt megger test on all chassis wiring before leaving the erecting bay.21th Feb 1935Box 168 \ 1  img188
Internal request to order H.T. cable for a Spectre chassis from Messrs. Macintosh.6th Mar 1935Box 168 \ 1  img189
Inspection report regarding snow ingress into the engine bay causing misfiring on chassis B.46-AH.20th Mar 1935Box 168 \ 1  img190
Internal order request for 5 lbs of superfine copper wire.29th Mar 1935Box 168 \ 1  img191
Letter to British Insulated Cables, Ltd. regarding the development of a new ignition cable for 20/25 engines.9th Apr 1935Box 168 \ 1  img192
Request to wire up engine 18.G.IV with a new grade of H.T. cable.13th Apr 1935Box 168 \ 1  img193
Breakdown of Maconrite high tension wires on test bed units due to heat, and a proposed fix.18th Apr 1935Box 168 \ 1  img194
Order for experimental Helsby cable from British Insulated Cables.30th Apr 1935Box 168 \ 1  img195
The loan of documents about electric cables issued by Edison Swan Cables Ltd.8th May 1935Box 168 \ 1  img196
Internal request to order 400ft of maconite H.T. ignition cable.13th May 1935Box 168 \ 1  img197
Request to wire the engine for a Spectre 3 chassis while it is on the test bench.16th May 1935Box 168 \ 1  img198
Issues with the Spectre ignition wiring, specifically plug terminal caps and H.T. wires.20th May 1935Box 168 \ 1  img199
The positioning of L.T. feed wires and ignition coils to prevent radio interference.20th May 1935Box 168 \ 1  img200
Issues with chafed body wiring on Bentley cars, proposing metal armoured braiding, and warning against its misuse.20th May 1935Box 168 \ 1  img201
The use of metal braiding on armoured cable for body wiring to eliminate radio interference.21th May 1935Box 168 \ 1  img202
Internal order request for a quantity of superfine copper wire.23th May 1935Box 168 \ 1  img203
Fitting wireless suppressors to the ignition wires of a Spectre 3 chassis.29th May 1935Box 168 \ 1  img204
Internal request to order 15 lbs of superfine copper wire.31th May 1935Box 168 \ 1  img205
Request to trial a new Thiokol covered H.T. ignition cable on two vehicles.4th Jun 1935Box 168 \ 1  img206
Dispatch of a set of Bentley ignition wires made with an experimental cable.8th Jun 1935Box 168 \ 1  img207
The testing of new 'Thiokol' H.T. ignition cables on car 4.B.IV.8th Jun 1935Box 168 \ 1  img208
The specifications of a new ignition cable sample and proposing tests.12th Jun 1935Box 168 \ 1  img209
The fitting of experimental high tension ignition cables and K.L.G. plugs to chassis 4.B.4.14th Jun 1935Box 168 \ 1  img210
The inadequate protection and subsequent damage to lamp and horn cables on model 5.B.IV.18th Jun 1935Box 168 \ 1  img211
Secret memo regarding Spectre ignition wiring and the development of new H.T. terminals.26th Aug 1935Box 168 \ 1  img212
Part changes for the Spectre Chassis wire fittings, specifically the sparking plug cover and terminal.2nd Sep 1935Box 168 \ 1  img213
Requesting arrangements for Spectre ignition wiring on engine 2SI before its shipment to France.4th Sep 1935Box 168 \ 1  img214
Specification for H.T. ignition cables for Spectre and Bentley chassis.4th Oct 1935Box 168 \ 1  img215
Sent from France requesting fuse wire for a Bentley chassis.14th Oct 1935Box 168 \ 1  img216
Internal request to order enamelled single paper covered copper wire from the London Electric Wire Co. Ltd.16th Oct 1935Box 168 \ 1  img217
Confirming the maximum diameter for H.T. Ignition Cables for Phantom III and Bentley Chassis.18th Oct 1935Box 168 \ 1  img218
Faulty thermo-couple wire from Concordia Electric Wire Co., exhibiting cracked lacquer and breakages.23th Oct 1935Box 168 \ 1  img219
Internal order request for sample quantities of Brightray Nickel-Chromium alloy wire.23th Oct 1935Box 168 \ 1  img220
Letter from a supplier enclosing a technical treatise on paper-covered enamel wire.25th Oct 1930Box 168 \ 1  img221
Letter from The Liverpool Electric Cable Co. Ltd. confirming a 5-yard sample has been sent.28th Oct 1935Box 168 \ 1  img222
Premature failure of H.T. cables on certain chassis and a recommendation to consider a more reliable replacement cable.31th Oct 1935Box 168 \ 1  img223
The premature failure of H.T. wire on 25-HP cars.22th Oct 1935Box 168 \ 1  img224
The standardization of H.T. ignition cables for Bentley & Phantom III models and a change of supplier.6th Nov 1935Box 168 \ 1  img225
Standardisation, stock levels, and issues with H.T. Wires for the 25-HP Chassis.7th Nov 1935Box 168 \ 1  img226
Investigation into the cause of failure of a high tension cable on a 20/25 HP chassis.13th Nov 1935Box 168 \ 1  img227
Analysis of cable replacement procedures, points of failure, and improvements to cable material to prevent ozone damage.15th Jun 1935Box 168 \ 1  img228
Standardisation of Parts report for special high-temperature cables.15th Jun 1935Box 168 \ 1  img229


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