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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Letter from the Derby Electricity Supply Department providing names of wire suppliers.10th Jul 1917Box 36 \ 3  scan 107
Inquiry to The Arora Co. regarding the purchase of Nichrome wire for experimentation.12th Jul 1917Box 36 \ 3  scan 108
Letter from Ferranti Limited regarding their inability to supply Nichrome Resistance Wire due to supply difficulties.13th Jul 1917Box 36 \ 3  scan 109
Letter from The Arora Co. responding to an enquiry about resistance wire for a heater, requesting more information.13th Jul 1917Box 36 \ 3  scan 110
With a sketch detailing the specifications for a heating tube, including dimensions and material requirements.18th Jul 1917Box 36 \ 3  scan 111
Sourcing of resistance wire for heating coils used in tensile tests of aluminium alloys.20th Jul 1917Box 36 \ 3  scan 112
Requesting specifications for a resistance wire for a heating coil from supplier Belling & Co.27th Jul 1917Box 36 \ 3  scan 113
The results of Stanton, Tensile, Specific Gravity, and Brinell tests on various aluminium alloys.27th Jul 1917Box 36 \ 3  scan 114
Note on the delay of tensile tests due to waiting for a new heating coil.26th Sep 1917Box 36 \ 3  scan 115
Instruction sheet detailing the mechanical properties and chemical composition of special aluminium alloys at various temperatures.26th Sep 1917Box 36 \ 3  scan 116
Results of tensile tests on three aluminium alloys (M3, M4, and A.F.).28th Sep 1917Box 36 \ 3  scan 117
Table detailing the material properties of special aluminium alloys (M.3, M.4, A.F.) at various temperatures.12th Apr 1927Box 36 \ 3  scan 118
Table showing the chemical composition analysis of three different alloys.9th Feb 1917Box 36 \ 3  scan 119
Test table results for the Lucas E.575 Dynamo, model X.1627.8th Apr 1920Box 36 \ 4  scan 001
Request for Lucas dynamos and switchboxes to establish test specifications.10th Apr 1920Box 36 \ 4  scan 002
Comparison table of specifications for various dynamo machines.13th Apr 1920Box 36 \ 4  scan 003
Table of specifications for various dynamo machines, continued from a previous page.6th Aug 1929Box 36 \ 4  scan 004
Comparison table of various dynamo models and their specifications.1st Jan 1919Box 36 \ 4  scan 005
Notes and queries regarding the production test specifications for a Lucas Dynamo.20th Apr 1920Box 36 \ 4  scan 006
Specification and request for the test of a Lucas Dynamo and Cut-out to establish production test requirements.15th Apr 1920Box 36 \ 4  scan 007
Letter to Lucas Elec. Co. regarding a proposed modification to Dynamo Terminals and directing future correspondence.19th Apr 1920Box 36 \ 4  scan 008
The performance of electrical parts after a 10,000-mile test run on the 2.EX car, noting a dynamo belt failure.20th Apr 1920Box 36 \ 4  scan 009
Specification of inspection and test for the Lucas E.575 dynamo.21th Apr 1920Box 36 \ 4  scan 010
Test results table for the Lucas E.575 Dynamo.8th Apr 1920Box 36 \ 4  scan 011
The 10,000-mile test of electrical parts on the 2.EX, specifically regarding the Lucas dynamo.21th Apr 1920Box 36 \ 4  scan 012
Specification of inspection and test for a Lucas E.575 Dynamo.21th Apr 1920Box 36 \ 4  scan 013
Dynamo testing procedures for high RPM operation, checking for brush sparking and mechanical vibration.21th Apr 1920Box 36 \ 4  scan 014
Continuation of a report on a 10,000-mile test of electrical parts, discussing coil windings and dynamo performance.21th Apr 1920Box 36 \ 4  scan 015
Letter from The Lucas Electrical Company Ltd regarding the development of a Chassis Lighting Dynamo.29th Apr 1920Box 36 \ 4  scan 016
Letter to Joseph Lucas Ltd. regarding modifications to Dynamo Terminals E.575.29th Apr 1920Box 36 \ 4  scan 017
Outlining the procedure for unit testing of dynamos to check for noise and general running.1st May 1920Box 36 \ 4  scan 018
Faults found during dynamo inspections and arranging for car testing.3rd May 1920Box 36 \ 4  scan 019
Re-inspection and testing procedures for dynamos, particularly concerning noise levels.3rd May 1920Box 36 \ 4  scan 020
Correspondence with Lucas Electrical Co. Ltd. regarding faulty and noisy dynamos and a new testing arrangement.5th May 1920Box 36 \ 4  scan 021
Establishing a standard unit test rig for noisy dynamos to match on-car conditions.1st May 1920Box 36 \ 4  scan 022
Issues with noisy dynamos from Lucas Electrical Co. Ltd., and the arrangements for testing and modifications.7th May 1920Box 36 \ 4  scan 023
Instructions detailing the effect on output by varying the control brush position on a Lucas E575 Dynamo.11th Jun 1920Box 36 \ 4  scan 024
Test results for a Lucas Dynamo, showing open circuit voltage output at various speeds when cold.12th May 1928Box 36 \ 4  scan 025
The difficulties of bench testing Lucas dynamos and a proposal for a more suitable test rig.12th May 1920Box 36 \ 4  scan 026
Specifications for a 4 HP motor, including voltage and regulating resistances.12th May 1920Box 36 \ 4  scan 027
Instructions sheet detailing the cold voltage test results for a Lucas Dynamo.13th May 1920Box 36 \ 4  scan 028
Instruction sheet detailing test results for a Lucas Dynamo that did not pass.13th May 1920Box 36 \ 4  scan 029
The investigation and test results for Lucas dynamos and switchboxes, detailing which parts passed or failed specification.14th May 1920Box 36 \ 4  scan 030
Instruction memo to replace an old experimental dynamo with a new Lucas E575 dynamo.14th May 1920Box 36 \ 4  scan 031
Investigation report on the specifications and testing of the Lucas E.575 Dynamo and Lucas Cut-out.14th May 1920Box 36 \ 4  scan 032
The performance specifications and testing of Lucas dynamo cut-outs.14th May 1920Box 36 \ 4  scan 033
The testing and analysis of electrical cut-outs, noting inconsistencies and suggesting further investigation.14th May 1920Box 36 \ 4  scan 034
Analysis of issues with Lucas cut-outs in R.R. cars and a description of the testing methodology used to investigate them.14th May 1920Box 36 \ 4  scan 035
Page detailing test procedures for an electrical cut-out, noting voltage and amperage at different speeds.14th May 1920Box 36 \ 4  scan 036
Test data for Lucas Dynamos E.575 (R.1276 & R.1318) and Lucas Cut-outs (No.19 & No.29) under hot and cold conditions.14th May 1920Box 36 \ 4  scan 037
Performance data for Lucas E.575 and No.91/129 dynamo and cut-out sets.14th May 1920Box 36 \ 4  scan 038
Test data for Lucas dynamos and cut-outs, showing voltage, amperage, and speed under hot and cold conditions.14th May 1920Box 36 \ 4  scan 039
Operating voltages of dynamo cut-outs and efforts to improve their uniformity with suppliers.14th May 1920Box 36 \ 4  scan 040
Test tables for the Lucas E.575 Dynamo X.1627.8th Apr 1920Box 36 \ 4  scan 041
Test results table for various Lucas cut-out devices under cold operating conditions.30th Apr 1920Box 36 \ 4  scan 042
Test table results for a Lucas Cut-Out.5th May 1920Box 36 \ 4  scan 043
Instruction sheet with test results for a Lucas E575 Dynamo, showing voltage output at various speeds.18th May 1920Box 36 \ 4  scan 044
To Mr. Clarke regarding a confusion over specifications for testing dynamos and cut-outs for Messrs Lucas.19th May 1920Box 36 \ 4  scan 045
Extract concerning the Smith Dynamo and adjustments made to Lucas dynamos.19th May 1920Box 36 \ 4  scan 046
Covering memo forwarding a copy of a letter sent to the Lucas Electrical Co. Ltd. regarding dynamos.22th May 1920Box 36 \ 4  scan 047
Letter to Lucas Electrical Co. Ltd. regarding the manufacture and supply of a special dynamo for the 40/50 HP chassis.21th May 1920Box 36 \ 4  scan 048
Letter to Lucas Electrical Co. Ltd. regarding the supply and testing of dynamos.21th May 1920Box 36 \ 4  scan 049
Instruction sheet detailing DC voltage tests for a Lucas ES75 Dynamo at various speeds.26th May 1920Box 36 \ 4  scan 050
Requirement to fit the standard Lucas Dynamo for the American market.27th May 1920Box 36 \ 4  scan 051
Test results for a Lucas E575 Dynamo, showing output readings at various speeds.27th May 1920Box 36 \ 4  scan 052
Instruction sheet recording speed, amperes, and volts measurements for a component.24th Jan 1919Box 36 \ 4  scan 053
Instructions and test results for a Lucas E575 Dynamo, showing output current and voltage at various speeds.28th May 1920Box 36 \ 4  scan 054
Log of performance readings including speed, main amperes, control amperes, and volts.24th Jan 1919Box 36 \ 4  scan 055
Instruction sheet with test results for a Lucas E575 dynamo under hot conditions.29th May 1920Box 36 \ 4  scan 056
Test log recording speed, main amperes, control amperes, and volts for customer 7B49.24th Jan 1919Box 36 \ 4  scan 057
Instruction sheet with test results for a Lucas C57S Dynamo under hot conditions.29th May 1920Box 36 \ 4  scan 058
Test results for a Lucas E575 Dynamo, detailing voltage output at various speeds.29th May 1949Box 36 \ 4  scan 059
Urgent internal memo discussing a letter from Lucas Electrical Co. Ltd. about dynamos and arranging a meeting for a response.1st Jun 1920Box 36 \ 4  scan 060
Letter from The Lucas Electrical Company Ltd. discussing the electrical equipment for a 40/50 HP chassis.29th May 1920Box 36 \ 4  scan 061
Letter regarding the investigation of an electrical noise issue on a car, potentially caused by a Whittle Belt.29th May 1920Box 36 \ 4  scan 062
Testing and development of the Lucas C.575 dynamo.29th May 1920Box 36 \ 4  scan 063
Performance comparison of E.575 and C.575 dynamos, detailing factors that affect their output curves.29th May 1920Box 36 \ 4  scan 064
Dynamo testing conditions, specifically hot output curves, battery voltages, and variations in components from suppliers.29th May 1920Box 36 \ 4  scan 065
Technical memo discussing dynamo performance, output curves, and comparison with other models.29th May 1920Box 36 \ 4  scan 066
The performance of a sample Lucas C.575 dynamo, detailing noise issues and a suspected mechanical fault compared to the standard E.575 model.29th May 1920Box 36 \ 4  scan 067
Comparison between the C.575 Lucas dynamo and the E.575 dynamo for standardisation purposes.29th May 1920Box 36 \ 4  scan 068
Letter inviting Mr. Breeden from Lucas Electrical Co. Ltd. to a meeting about Lucas Dynamos.4th Jun 1920Box 36 \ 4  scan 069
Letter to Lucas Electrical Co. Ltd. regarding a visit from Mr. Breeden to test dynamos for the 40/50 HP chassis.4th Jun 1920Box 36 \ 4  scan 070
Note about rescheduling a visit from Mr. Breeden of the Lucas Electrical Co. from Monday to Tuesday.5th Jun 1920Box 36 \ 4  scan 071
Chassis dynamo heating test results for maximum output on the first lot.8th Jun 1920Box 36 \ 4  scan 072
Test results table for chassis dynamo heating under maximum output conditions.8th Jun 1920Box 36 \ 4  scan 073
Urgent memo arranging a meeting with Lucas Electrical Co. Ltd. to test dynamos rejected for noisiness.1st Jun 1920Box 36 \ 4  scan 074
Ignition and Klaxon failure on chassis 1.EX, with a critique of Lucas components.8th Jun 1920Box 36 \ 4  scan 075
Instruction sheet with test results for a Lucas F575 dynamo's output after a heating test.9th Jun 1920Box 36 \ 4  scan 076
Instruction sheet detailing test results for a Lucas ES75 Dynamo at various control brush settings.9th Jun 1920Box 36 \ 4  scan 077
Investigation into a noisy dynamo, confirming the fault is not with the drive belt.10th Jun 1920Box 36 \ 4  scan 078
Instruction sheet detailing the weights and specifications for a Lucas E 575 Shunt Wound Dynamo.16th Jul 1920Box 36 \ 4  scan 079
Instructions for a field circuit, detailing its components and winding specifications.17th Jul 1920Box 36 \ 4  scan 080
Instructions for the winding specifications of a Field Circuit and an Armature Circuit.17th Jul 1920Box 36 \ 4  scan 081
Instructions regarding the specifications of an Armature Circuit.17th Jul 1920Box 36 \ 4  scan 082
Instructions detailing the construction specifications for an armature circuit.19th Jul 1920Box 36 \ 4  scan 083
Instructions detailing specifications for the armature circuit, commutator, and brushes.19th Jul 1920Box 36 \ 4  scan 084
Instructions regarding the commutator, brushes, and winding diagram.19th Jul 1920Box 36 \ 4  scan 085
Instructions detailing the results of a test on a Lucas Dynamo armature.26th Jul 1920Box 36 \ 4  scan 086
Forwarding a letter from Lucas Electrical Co. Ltd. regarding a delay in the delivery of dynamos and switchboxes.19th Jun 1920Box 36 \ 4  scan 087


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