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).
Rolls-Royce Experimental Archives                
Choose Archive


Browsing Records        Page 391 of 2367        Sort by   Box   Date   Description

Filter      from        to             identifier   [all]
DescriptionDateIdentifier
Comparative summary of six different dynamo and regulator types, with a detailed analysis of the Aero Type U.B.3rd Nov 1922Box 31 \ 1  Scan138
The experimental testing and performance of a Bosch dynamo and regulator.3rd Nov 1922Box 31 \ 1  Scan139
The performance and issues with 6-volt and 12-volt Bijur electrical sets.3rd Nov 1922Box 31 \ 1  Scan140
The operation and design of various dynamo and regulator systems, specifically Liberty, Scott, and Westinghouse.13th Nov 1922Box 31 \ 1  Scan141
The performance of a vibrator regulator and suggestions for a new design.3rd Nov 1922Box 31 \ 1  Scan142
Suggestion to experimentally study regulators and develop a new design to prolong battery life.3rd Nov 1922Box 31 \ 1  Scan143
Providing electrical diagrams and descriptions for external voltage and current regulators for chassis dynamos.14th Nov 1922Box 31 \ 1  Scan144
Schematic diagrams and descriptions for two types of external chassis dynamo-regulators.14th Nov 1922Box 31 \ 1  Scan145
Continued description of a regulator's operation, involving carbon granules, an auxiliary contact, and an operating coil.14th Nov 1922Box 31 \ 1  Scan146
The operation of a Bijur Vibrator Regulator and Dynamo.14th Nov 1922Box 31 \ 1  Scan147
Wiring diagram for the connections of a Bijur dynamo, regulator and cutout.14th Nov 1922Box 31 \ 1  Scan148
Circuit diagrams for a Liberty Dynamo & Regulator and a Westinghouse Dynamo & Regulator.14th Nov 1922Box 31 \ 1  Scan149
Descriptions of the Scott, Liberty Dynamo, and Westinghouse Dynamo & Vibrator regulators.14th Nov 1922Box 31 \ 1  Scan150
Circuit diagram for a post-war R. Bosch dynamo and regulator unit.16th Nov 1922Box 31 \ 1  Scan151
Description of the operation of post-War R. Bosch external voltage and current regulators for chassis dynamos.16th Nov 1922Box 31 \ 1  Scan152
Suggestion to acquire an up-to-date Bosch electrical set suitable for the Goshawk engine to test the system.16th Nov 1922Box 31 \ 1  Scan153
Requesting a trial of a Westinghouse Vibrator for dynamo control on the Goshawk 11 lighting system.9th Dec 1922Box 31 \ 1  Scan154
Points for consideration and experiment on dynamos and other electrical equipment.30th May 1923Box 31 \ 1  Scan155
Preliminary report on dynamo investigations, covering regulation, brush sparking, failures, and patents.2nd Jun 1923Box 31 \ 1  Scan156
List of patent specifications in connection with vibrator regulator control of chassis dynamos.21th Jun 1923Box 31 \ 1  Scan157
The investigation of patents for chassis dynamo external regulators.12th Jul 1923Box 31 \ 1  Scan158
Summary list of patents with brief descriptions, categorized under Bosch, Bijur, and others.2nd Jul 1923Box 31 \ 1  Scan159
Sending patent specifications for chassis dynamo external regulators.3rd Jul 1923Box 31 \ 1  Scan160
Sending of patent specifications for chassis dynamo external regulators.4th Jul 1923Box 31 \ 1  Scan161
Cover note for patent specifications regarding chassis dynamo external regulators.5th Jul 1923Box 31 \ 1  Scan162
The general tests for combined dynamo and external regulators.10th Sep 1923Box 31 \ 1  Scan163
Procedure for observing dynamo charge and delivery under combined battery and conductance loads.10th Sep 1923Box 31 \ 1  Scan164
Requirements for car batteries, favouring reliability and efficient charging over greater capacity.20th Sep 1923Box 31 \ 1  Scan165
Reliability of Springfield electrical equipment, including Westinghouse and American Bosch components.8th Oct 1923Box 31 \ 1  Scan166
Secret memo discussing the design for an automatic advance for magneto/battery ignition and a vibrator control for the dynamo.1st Jan 1924Box 31 \ 1  Scan167
Vibrator control systems for dynamos, referencing R. Bosch systems as a potential reliable option.12th Jan 1924Box 31 \ 1  Scan168
The Bosch cutout unit's red lamp feature and a proposed silent starter motor control.12th Jan 1924Box 31 \ 1  Scan169
Extract noting an observation on a Renault car's crude but working vibrator system.29th Apr 1924Box 31 \ 1  Scan170
Technical paper on the voltage regulation of automotive electrical systems, including different generator types and performance charts.1st Jun 1925Box 31 \ 1  Scan171
Journal page discussing voltage regulation and automotive electrical systems, including shunt-wound and compound-wound generators.1st Jun 1925Box 31 \ 1  Scan172
Technical paper on the voltage regulation of electrical systems, focusing on different generator types and their application in vehicles.1st Jun 1925Box 31 \ 1  Scan173
Journal article detailing the design, function, and adjustment of a 12-volt automotive voltage regulator.1st Jun 1925Box 31 \ 1  Scan174
Journal page discussing the voltage regulation of electrical systems, with a comparison of generator types using performance graphs.1st Jun 1925Box 31 \ 1  Scan175
Journal article comparing regulated-input and third-brush input electrical generator systems for battery charging.1st Jun 1925Box 31 \ 1  Scan176
Technical paper on the electrical regulation of automotive systems, featuring performance curves and a summary of voltage-regulation advantages.1st Jun 1925Box 31 \ 1  Scan177
Page from an automotive engineering journal discussing motorbus lighting, standards of measure, and car sales financing.1st Jun 1925Box 31 \ 1  Scan178
Circuit diagrams for a Ward-Leonard Dynamo, Vibrator-Regulator, and Cut-Out.24th Sep 1924Box 31 \ 1  Scan179
Self-starter, attaching a production card for armature wedges and an instruction sheet, with associated electrical diagrams.5th Jun 1914Box 31 \ 1  Scan180
Notes on the dynamo-battery combination of a chassis electrical system.16th Jun 1926Box 31 \ 1  Scan181
Developing an automatic voltage-operated cutout for a dynamo system.16th Jun 1926Box 31 \ 1  Scan182
Report comparing ignition ballast resistance characteristics and observations on battery charging methods and true E.M.F.11th Jun 1926Box 31 \ 1  Scan183
Continued discussion on battery internal resistance, charging rates, and electromotive force.16th Jun 1926Box 31 \ 1  Scan184
Explaining the functioning of the dynamo-battery combination in a chassis electrical system.12th Jun 1926Box 31 \ 1  Scan185
Continued explanation of the main field winding and dynamo-battery charging circuit, including potential fault conditions.12th Jun 1926Box 31 \ 1  Scan186
The effects of poor electrical connections in a dynamo-battery circuit, including heating and resistance management.12th Jun 1926Box 31 \ 1  Scan187
The fundamental flaws and potential failure points of dynamo-battery systems.12th Jun 1926Box 31 \ 1  Scan188
Page discussing the ideal chassis electrical system, focusing on dynamo-battery combinations and voltage regulation.12th Jun 1926Box 31 \ 1  Scan189
The principles of voltage and current regulation using an external regulator in a dynamo-based electrical system.12th Jun 1926Box 31 \ 1  Scan190
The regulation of field current using vibrating contacts and electro-magnetic windings.12th Jun 1926Box 31 \ 1  Scan191
Technical discussion on the principles and practical difficulties of battery charging and field current regulation systems.12th Jun 1926Box 31 \ 1  Scan192
Compromise design for dynamo regulation using field resistance.12th Jun 1926Box 31 \ 1  Scan193
Description of an electro-magnetically operated relay switch used in a dynamo system.12th Jun 1926Box 31 \ 1  Scan194
Operational description of the electrical charging and regulation system under different engine and load conditions.12th Jun 1926Box 31 \ 1  Scan195
Continued discussion on the operation and advantages of an automatic switch in the vehicle's electrical system.12th Jun 1926Box 31 \ 1  Scan196
The chassis electrical system, specifically the generator and regulator.24th Jul 1926Box 31 \ 1  Scan197
Recommending the use of a voltage regulator and an overload cutout for the generator charging system.8th Oct 1926Box 31 \ 1  Scan198
Design and faults of chassis generator and regulator systems, with reference to American and German manufactured parts.8th Oct 1926Box 31 \ 1  Scan199
Compromises in dynamo design for battery charging systems.8th Oct 1926Box 31 \ 1  Scan200
Adding an automatically operated electro-magnetic switch to the dynamo's field winding.8th Oct 1926Box 31 \ 1  Scan201
Analysis of the reliability of an electrical system's relay switch and ballast resistance.8th Oct 1926Box 31 \ 1  Scan202
Continued page describing the operation of an automatic electrical switch and charging system.8th Oct 1926Box 31 \ 1  Scan203
Bench tests of three different devices designed to prevent the overcharging of a battery, including a description of the Mentor device.8th Oct 1926Box 31 \ 1  Scan204
Comparison of three electrical devices (voltmeter, Mentor, and electro-magnetic switch) based on their operational requirements and reliability.25th Apr 1929Box 31 \ 1  Scan205
Method from the 'Electrical Review' for reducing sparking and wear of regulator contacts.25th Apr 1929Box 31 \ 1  Scan206
Cover letter for an attached report and description of a battery overcharge preventer.13th Nov 1929Box 31 \ 1  Scan207
The design and function of a battery protector to prevent overcharging when testing dynamos.13th Nov 1929Box 31 \ 1  Scan208
Two hand-drawn electrical circuit diagrams for a dynamo charging system, labelled 'A' and 'B'.21th Nov 1929Box 31 \ 1  Scan209
Battery overcharging and undercharging issues, considering solutions and lamp economy.21th Nov 1929Box 31 \ 1  Scan210
Typed letter from 'EFC' critiquing a proposal for an overcharge preventer.9th Dec 1929Box 31 \ 1  Scan211
Article from 'The Autocar' magazine about a new method of manufacturing Wood-Milne tyres to prevent premature bursts by weaving the fabric in one piece.24th Aug 1912Box 31 \ 1  Scan212
Favourable reports on Wood Milne tyres and a request to try some.26th Jul 1914Box 31 \ 1  Scan213
Internal order to procure Wood Milne tyres for testing purposes.29th Jul 1914Box 31 \ 1  Scan214
Guarantees for Wood-Milne tyres.1st Sep 1914Box 31 \ 1  Scan215
Tyre guarantee from Wood-Milne Ltd. for 3,500 miles.1st Mar 1914Box 31 \ 1  Scan216
Load, inflation, and horsepower table for different tyre sizes and vehicle weights.2nd Sep 1914Box 31 \ 1  Scan217
The receipt of three Grooved Tread Wood Milne Tyres for an experiment.2nd Sep 1914Box 31 \ 1  Scan218
Road test report tracking mileage and remarks on tyre performance.22th Jan 1915Box 31 \ 1  Scan219
Requesting mileage records for Wood-Milne tyres, with a handwritten reply detailing the figures.4th Mar 1915Box 31 \ 1  Scan220
The mileage performance of Wood-Milne tyres fitted to chassis 7CA.10th Mar 1915Box 31 \ 1  Scan221
Test of Wood-Milne brand tyres.10th Mar 1915Box 31 \ 1  Scan222
Tyres finding no advantages over Dunlop or Michelin, with hardness in riding considered a bad feature.2nd Jun 1921Box 31 \ 1  Scan223
Blueprints for a modified Woodmilne tyre pump connection proposed by Mr. Royce.2nd Jun 1921Box 31 \ 1  Scan224
Recommending the modern Wood Milne 'Boyce' push-on tyre pump connection over the old-fashioned screw type.2nd Jun 1921Box 31 \ 1  Scan225
Proposal by Mr. Royce for a modified Woodmilne tyre pump connection and washer.5th May 1921Box 31 \ 1  Scan226
Issues with a washer, union nut, and nipple.1st May 1921Box 31 \ 1  Scan227
Note about an insulated switch fitted to a steering column for a 6 volt coil.27th Jul 1914Box 31 \ 2  Scan001
The testing and implementation of a 6-volt ignition coil, including wiring recommendations.27th Jul 1914Box 31 \ 2  Scan002
Issues with connecting ignition to batteries and the solution of making their own dynamos.27th Jul 1914Box 31 \ 2  Scan003
Instruction sheet for fitting an experimental insulated ignition switch, requiring modifications to the engine guard and steering gear shield.3rd Sep 1914Box 31 \ 2  Scan004
Instruction sheet regarding the creation of patterns for steering control gear from B prints.11th Sep 1914Box 31 \ 2  Scan005
Instruction sheet regarding the substitution of a part for the steering mechanism.14th Dec 1914Box 31 \ 2  Scan006
Development, testing, and standardization process of a 6-volt coil.13th Jan 1915Box 31 \ 2  Scan007
Delay in parts with ebonite-e insulation and the plan to fit a switch to Mr. Royce's next car, 49-GB.13th Jan 1915Box 31 \ 2  Scan008
The supply of parts for the Northcliffe & Williamson Ignition Switch.14th Jan 1915Box 31 \ 2  Scan009
Chasing an overdue delivery of insulated segments for a Northcliffe & Williamson Ignition Switch.22th Jan 1915Box 31 \ 2  Scan010


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙