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
Submission of a wiring diagram blueprint for the E.A.C.14 chassis for approval.13th Jan 1928Box 168b \ 2  img134
Proposal for battery ignition wiring on EAC.10, referencing blueprint LeC.2526 and discussing component placement.7th Mar 1928Box 168b \ 2  img135
Drawing for a cylinder head thermometer.22th Mar 1928Box 168b \ 2  img136
Provision for a thermometer bulb in the cylinder head and the routing of ignition wires.22th Mar 1928Box 168b \ 2  img137
Cover note sending a drawing regarding battery ignition wiring and requesting comments.24th Mar 1928Box 168b \ 2  img138
Approving the LeC.2526 proposal for 'SS' Battery Ignition Wiring.27th Mar 1928Box 168b \ 2  img139
Revision to the Phantom technical wiring diagram, making it easier to understand and including a green lamp indicator.29th Jun 1928Box 168b \ 2  img140
Re-arranged wiring diagram for the Phantom model and the future adoption of a green lamp indicator.4th Jul 1928Box 168b \ 2  img141
File note referencing correspondence on the now standardised Maconite wiring.12th Jun 1928Box 168b \ 2  img142
Providing commentary and suggested changes for a Phantom technical wiring diagram.6th Jul 1928Box 168b \ 2  img143
Technical memorandum discussing corrections to wiring diagrams for the ignition coil and battery.6th Jul 1928Box 168b \ 2  img144
Phantom wiring diagram and green light connection.6th Jul 1928Box 168b \ 2  img145
Clarifying a misunderstanding about the wiring and switching of a green indicator lamp circuit relative to the charging switch.18th Jul 1928Box 168b \ 2  img146
Modifications to the 'SS' battery suspension, its forward mounting, and rear box.18th Jul 1928Box 168b \ 2  img147
Corrections to a diagram for an accumulator switch and green light indicator, including fuse placement.20th Jul 1928Box 168b \ 2  img148
Review of a Phantom wiring diagram with proposed corrections for the instrument board light and green lamp switch.24th Jul 1928Box 168b \ 2  img149
Electrical options for a dynamo's field fuse, shunt coils, and indicator lamp.24th Jul 1928Box 168b \ 2  img150
Revised Phantom wiring diagram, cancelling previous versions.24th Jul 1928Box 168b \ 2  img151
Parts and assemblies list with associated values for a Spanners & Tools Engine Set.5th Jul 1924Box 168b \ 2  img152
Magneto wiring for Phantom models, referencing drawing LeC. 2593 and discussing ignition plug extensions and wire tube clips.12th Sep 1928Box 168b \ 2  img153
Electrical circuits, fuse arrangements, and a proposed switchbox and ignition test.18th Sep 1928Box 168b \ 2  img154
Revisions to the electrical installation for chassis EAC 10.22th Sep 1928Box 168b \ 2  img155
Placement of switches in low-voltage wiring systems with earth return to protect components.25th Sep 1928Box 168b \ 2  img156
Redrawn blueprint for a wiring diagram and requesting feedback before finalising the original.3rd Oct 1928Box 168b \ 2  img157
Technical wiring diagram, noting a missing switch and seeking clarification on headlamp type.6th Oct 1928Box 168b \ 2  img158
Low Tension (L.T.) wiring specifications for 40/50 and 20 HP models.1st Oct 1928Box 168b \ 2  img159
Specifications for various types of cables, detailing core size, diameter, dielectric, and protective covering.5th Nov 1928Box 168b \ 2  img160
List of L.T. (Low Tension) wiring cables for the SS chassis, detailing connections, purpose, colour, and part numbers.5th Nov 1928Box 168b \ 2  img161
List of low tension (L.T.) wiring cables for the SS Chassis.5th Nov 1928Box 168b \ 2  img162
Requirements for body lighting and electrical accessory wiring.20th Nov 1928Box 168b \ 2  img163
Accessory wiring, specifying the use of single-pole wiring earthed to the chassis by the coachbuilder.15th Nov 1928Box 168b \ 2  img164
Accessory wiring, noting fire dangers and agreeing to retain twin wiring with a suitable earthing stud.24th Nov 1928Box 168b \ 2  img165
Approval and recommendations for the Accessory Distribution Board wiring.5th Feb 1929Box 168b \ 2  img166
The specific ignition wiring for two 'SS' Phantom chassis, detailing the use of Maconita and super-Glover systems.8th Feb 1929Box 168b \ 2  img167
Instruction sheet detailing the quality testing of Maconites chassis H.T. cable.25th Mar 1929Box 168b \ 2  img168
Query regarding S.S. chassis ignition wiring systems using Maconite and Super-Glover H.T. cable.26th Mar 1929Box 168b \ 2  img169
Wiring diagram blueprint for the 'SS' Chassis.18th Apr 1929Box 168b \ 2  img170
Optimal wiring arrangement for accessory apparatus, focusing on the ammeter and fuse board.22th Apr 1929Box 168b \ 2  img171
Rearranging the accessory distribution box wiring, particularly concerning the ammeter.22th Apr 1929Box 168b \ 2  img172
Instructions on wiring accessories, the ammeter circuit, and choosing appropriate conductor and fuse sizes.22th Apr 1929Box 168b \ 2  img173
Technical discussion on electrical wiring specifications for coachbuilders, including conductor sizes, fuses, and distribution box configurations.26th Apr 1929Box 168b \ 2  img174
Parts list for wiring and fittings on the 'SS' Chassis, relating to the accessibility of shock damper valves.26th Apr 1929Box 168b \ 2  img175
Request for a list of cables for S.S. production wiring, referencing a previous list for V Series Chassis.1st May 1929Box 168b \ 2  img176
List of cables required for the Phantom Chassis 'J2' Series ('SS').2nd May 1929Box 168b \ 2  img177
Parts list table showing piece number, title, colour, core, and specification number.1st May 1929Box 168b \ 2  img178
Specification table for switchbox and starter switch components, detailing their colours and core types.2nd May 1929Box 168b \ 2  img179
Instruction for an improved wiring method of the magneto switch for the 'SS' chassis.8th Jun 1929Box 168b \ 2  img180
List of S.S. wires for a dynamo-battery bench test.3rd Jul 1929Box 168b \ 2  img181
Confirming the dispatch of 3 Blue Prints of the F.80679 Wiring Diagram for the 'SS' Chassis ('J2' Series).28th Aug 1929Box 168b \ 2  img182
Letter from The Concordia Electric Wire Co. Ltd. introducing their new 'Herculacker' cellulose lacquer cables.4th Feb 1930Box 168b \ 2  img183
Requesting a revised list of L.T. cables for the Phantom II chassis and proposing an experiment with new wires.24th Feb 1930Box 168b \ 2  img184
List of cables for the Phantom II chassis.25th Feb 1930Box 168b \ 2  img185
List of parts detailing their piece number, title, colour, core, and specification number.25th Feb 1930Box 168b \ 2  img186
Parts list table for electrical components detailing piece numbers, titles, colours, core sizes, and specification numbers.3rd Mar 1930Box 168b \ 2  img187
Conductor sizes for the chassis electrical system.3rd Mar 1930Box 168b \ 2  img188
Proposed modifications to the Phantom II Chassis L.T. wiring.1st Mar 1930Box 168b \ 2  img189
Alterations to electrical system conductor sizes and a proposal for experimental wire for the 40/50 HP Chassis.11th Mar 1930Box 168b \ 2  img190
Correspondence regarding a cheaper alternative 'Nonazo' cable sample from W.T. Glover & Co. Ltd.31th Mar 1930Box 168b \ 2  img191
Requirement for low tension chassis wiring cable to be thoroughly tested, contrasting 'Association' and 'not Association' types.4th Apr 1930Box 168b \ 2  img192
Cost and benefits of fitting extra wires as standard to the front chassis for various lamp types.5th May 1930Box 168b \ 2  img193
Letter to W.T. Glover & Co. Ltd. regarding the testing of a 'Nonazo' cable sample and inquiring about similar products.14th Apr 1930Box 168b \ 2  img194
Letter from W.T. Glover & Co. Ltd. regarding the material quality and electrical tests of Nonazo cable.16th Apr 1930Box 168b \ 2  img195
Recommending a modification to the L.T. wiring for a Left-Hand chassis to simplify the layout and reduce overcrowding.22th May 1930Box 168b \ 2  img196
Revisions to a list of cables, including a specific change to the Klaxon horn circuit wiring.25th Jun 1930Box 168b \ 2  img197
List of cables for the Phantom II chassis, detailing part numbers, titles, colours, and specifications.25th Jun 1930Box 168b \ 2  img198
Parts list detailing vehicle components with piece numbers, titles, colours, and specifications.19th Aug 1938Box 168b \ 2  img199
List of electrical components with their corresponding piece numbers, colors, and specification codes.19th Aug 1938Box 168b \ 2  img200
Specification list for electrical wiring components, detailing piece numbers, colours, and core types.1st Jul 1930Box 168b \ 2  img201
List of queries regarding cable specifications for the Phantom II chassis.1st Jul 1930Box 168b \ 2  img202
Changes to the list of cables for the Phantom II Chassis.3rd Jul 1930Box 168b \ 2  img203
Electrical connections and power supply for body and cigar lighting.18th Jul 1930Box 168b \ 2  img204
Modification of connections for the accessory distribution box.1st Jul 1930Box 168b \ 2  img205
Wire sizes for the accessory box and magneto assembly.1st Jul 1930Box 168b \ 2  img206
Outlining proposals and points of disagreement concerning extra wiring for vehicle lamps.12th Jul 1930Box 168b \ 2  img207
The connections for body lighting and cigar lighters.18th Jul 1930Box 168b \ 2  img208
Specifications for wiring for centre lamps or double bulb headlamps.2nd Aug 1930Box 168b \ 2  img209
The necessity and cost of a disconnector for wing lamp wiring.14th Aug 1930Box 168b \ 2  img210
Properties and potential use of paper-covered copper wires as an alternative to cotton-covered wires.28th Aug 1930Box 168b \ 2  img211
Error in the Phantom II wiring diagram concerning a new accessory distribution board.13th Nov 1930Box 168b \ 2  img212
Alterations to the Phantom II wiring diagram, specifically regarding the ammeter circuit for the N.2 series.5th Nov 1930Box 168b \ 2  img213
Points requiring attention in the electrical system of the L.H. chassis.1st Jan 1931Box 168b \ 2  img214
Letter regarding an issue with Lucas lamps giving poor, yellowish light due to insufficient wiring.6th Feb 1931Box 168b \ 2  img215
Tests to measure voltage loss in the headlamp wiring.10th Feb 1931Box 168b \ 2  img216
Negligible voltage loss in headlamp wiring.17th Feb 1931Box 168b \ 2  img217
Investigation into a voltage drop in the headlamp wiring.19th Feb 1931Box 168b \ 2  img218
Instruction sheet detailing tests for voltage loss in headlamp wiring on chassis 20EX.26th Feb 1931Box 168b \ 2  img219
Instructions and observations on vehicle electrical system tests, including potential readings at various points.1st Dec 1924Box 168b \ 2  img220
Electrical potential measurements for headlamp circuits.1st Dec 1924Box 168b \ 2  img221
Suggestion to add a starter circuit diagram to the main switch cover for the Phantom II Starter Motor.4th Mar 1931Box 168b \ 2  img222
Tests measuring the loss of potential difference (voltage) in headlamp wiring on experimental cars.6th Mar 1931Box 168b \ 2  img223
Analysis of voltage drop in headlamp wiring circuits for various chassis models.3rd Mar 1931Box 168b \ 2  img224
Improvements to headlamp wiring and changeover switches to accommodate higher wattage lamps.6th Mar 1931Box 168b \ 2  img225
Follow-up memo regarding the electrical system of a left-hand drive chassis.1st Mar 1931Box 168b \ 2  img226
Electrical system of the Left Hand (L.H.) chassis.16th Mar 1931Box 168b \ 2  img227
The starter motor terminal positions on the L.H. chassis.8th Mar 1931Box 168b \ 2  img228
Complaint regarding voltage loss in the headlamp wires for a Phantom II, 40-GX.17th Sep 1931Box 168b \ 2  img229
Proposing the addition of an accessory distribution box to improve body wiring safety and ammeter function.1st Jan 1932Box 168b \ 2  img230
Proposal for a master switch for body wiring to disconnect accessory circuits and prevent battery discharge.1st Feb 1932Box 168b \ 2  img231
Policy document clarifying the wiring of accessories on the J.S. chassis.2nd Mar 1932Box 168b \ 2  img232
The functionality of a master switch for body wiring, specifically in relation to an electric heater and the ignition circuit.5th Feb 1932Box 168b \ 2  img233


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