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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Listing attached documents concerning the design and performance of chassis dynamos.5th Oct 1920Box 37 \ 2  scan 095
General report on the testing of various dynamos, focusing on volt-speed and ampere-speed curves.10th Oct 1920Box 37 \ 2  scan 096
Report page comparing the performance characteristics and numerical particulars of Bosch and Liberty dynamos.5th Oct 1920Box 37 \ 2  scan 097
Specifications for machine windings and associated diagrams for various machines.5th Oct 1920Box 37 \ 2  scan 098
Experiments with dynamos and vibrator regulators for car electrical systems.25th Oct 1920Box 37 \ 2  scan 099
The 'Liberty' shunt wound dynamo, including weights and circuit specifications.7th Aug 1920Box 37 \ 2  scan 100
Specification details for an electrical armature, commutator, and brushes assembly.29th Dec 1933Box 37 \ 2  scan 101
Specifications for the dimensions and installation of four brushes and their holders.29th Dec 1933Box 37 \ 2  scan 102
Graph of open circuit volt-speed curves for various plain shunt wound dynamos under cold and hot conditions.22th Sep 1920Box 37 \ 2  scan 103
Graph of ampere output curves for various plain shunt wound dynamos under cold and hot conditions.25th Sep 1920Box 37 \ 2  scan 104
Optimal gear ratios and performance for a C.A.V. starter and a Liberty dynamo.22th Dec 1920Box 37 \ 2  scan 105
Wiring diagram for the Liberty Switchbox connections and the Liberty Dynamo end.9th Aug 1920Box 37 \ 2  scan 106
Wiring diagram for the connections of a Liberty Dynamo and Vibrator Regulator.28th Jan 1921Box 37 \ 2  scan 107
Comparison table of specifications for various shunt dynamos.28th May 1925Box 37 \ 2  scan 108
Analysis of the Liberty Dynamo and Regulator's operation, including a circuit diagram and notes on its characteristics.13th Aug 1929Box 37 \ 2  scan 109
The assembly and modification of 'Eagle' engine water pump parts for testing.3rd Jun 1918Box 37 \ 2  scan 110
Water pump modification test for the 'Eagle' engine, involving new joint facing cover washers.3rd Jun 1918Box 37 \ 2  scan 111
Arrangement of the Water Pump (Sheet 2) for 'Eagle' Engines.5th Jun 1918Box 37 \ 2  scan 112
Instruction standardizing the altered position of the water pump drain cock for 'Eagle' engines.7th Sep 1919Box 37 \ 2  scan 113
Alteration notice for the Drain Cock Body and Locking Washer on Falcon & Eagle engines.30th Oct 1918Box 37 \ 2  scan 114
Mostly blank document with a 'Print Room' stamp in the bottom right corner.4th Oct 1917Box 37 \ 2  scan 115
Confirming the handover of a drawing for a Petrol Venturi Meter and ordering two experimental units.4th Oct 1917Box 37 \ 2  scan 116
Testing a Venturi Petrol Flow Meter before ordering in quantity.6th Oct 1917Box 37 \ 2  scan 117
Instruction to manufacture and assemble parts for petrol flow meters for test houses, based on a blueprint.9th Oct 1917Box 37 \ 2  scan 118
Instruction memo regarding petrol flow meters for test houses.17th Oct 1917Box 37 \ 2  scan 119
Confirming experiments and requesting a smaller petrol venturi meter for test houses.12th Nov 1917Box 37 \ 2  scan 120
Testing of an R.A.F. petrol flowmeter and the development of a new Venturi-type meter using a copper sulphate solution.28th Nov 1917Box 37 \ 2  scan 121
The accuracy and faults of Venturi petrol flow meters for use in test houses.28th Nov 1917Box 37 \ 2  scan 122
Data table for a Venturi petrol flow meter with a mercury gauge, correlating manometer readings with flow rates.8th Dec 1917Box 37 \ 2  scan 123
Table of data comparing flow rate in pints per hour to manometer gauge level differences in inches.8th Dec 1917Box 37 \ 2  scan 124
Instructions for making and fixing parts for a petrol flow meter for 3 cylinders from blueprints.17th Dec 1917Box 37 \ 2  scan 125
Confirming the handover of production for an experimental 3-cylinder petrol venturi flow meter.24th Jan 1918Box 37 \ 2  scan 126
Requesting the production of two types of petrol venturi meters, X.3180A and X.3180B.29th Jan 1918Box 37 \ 2  scan 127
The satisfactory performance of a new petrol flow meter and the decision to requisition it for test houses.6th May 1918Box 37 \ 2  scan 128
Demand for a water circulation flow meter for engine testing and the consideration of a patent.26th Apr 1917Box 37 \ 2  scan 129
Instruction to proceed with building six petrol Venturi meter boards for the Test Houses.1st Feb 1918Box 37 \ 2  scan 130
Two specifications for a Venturi Flow Meter and outlining a potential claim for the company's own design.26th Feb 1918Box 37 \ 2  scan 131
The operation of a gauge for measuring petrol flow.28th Feb 1918Box 37 \ 2  scan 132
Data table for a Venturi Petrol Flow Meter using a CuSO4 gauge, correlating flow time with manometer readings.28th Feb 1918Box 37 \ 2  scan 133
Continuation page of test results showing time against manometer gauge level differences.14th Mar 1918Box 37 \ 2  scan 134
Notice stating that the petrol venturi meters experiment has been instructed as a production job.14th Mar 1918Box 37 \ 2  scan 135
Request for a report on the usefulness of a small 3-cylinder petrol Venturi meter.24th May 1918Box 37 \ 2  scan 136
Confirming the successful testing of a petrol venturi meter for 3-cylinder engines.6th Jun 1918Box 37 \ 2  scan 137
Experimentation and implementation of petrol Venturi flow meters for engine test houses.7th Jun 1918Box 37 \ 2  scan 138
Inability to produce petrol venturi flow meters in-house and suggesting they be outsourced.31th Aug 1918Box 37 \ 2  scan 139
Requesting literature or reports on petrol flowmeters.16th May 1919Box 37 \ 2  scan 140
Results and suitability of various types of petrol flow meters for aero engines.20th May 1919Box 37 \ 2  scan 141
Producing an accurate differential low-pressure gauge using a simple venturi type for reliable readings in horizontal flight.20th May 1919Box 37 \ 2  scan 142
Calculations for a petrol venturi meter, determining flow rates.2nd Jul 1919Box 37 \ 2  scan 143
Letter from the Ministry of Munitions of War regarding a flowmeter report and development.2nd Jul 1919Box 37 \ 2  scan 144
Confirming the availability of two A.I.D. Mark 4 Flowmeters for a 'Condor' Type Test.10th Oct 1919Box 37 \ 2  scan 145
Proposed experimental piston alloy and the need for testing before adoption.17th Sep 1917Box 37 \ 2  scan 146
Requesting the casting of experimental pistons made from an aluminium, copper, and magnesium alloy for testing.18th Sep 1917Box 37 \ 2  scan 147
The composition of two types of aluminium alloy pistons and an inquiry about their casting status.10th Oct 1917Box 37 \ 2  scan 148
Request for a progress report on three experiments involving pistons with false crowns and different alloys.15th Oct 1917Box 37 \ 2  scan 149
Specifications and manufacturing methods for three different types of pistons.8th Oct 1917Box 37 \ 2  scan 150
List of cancelled experiments relating to engine crankcases and pistons.5th Jun 1918Box 37 \ 2  scan 151
Requesting the production of an adapter for a wireless drive shaft to be used on Eagle engines.26th Sep 1917Box 37 \ 2  scan 152
Confirming the completion and dispatch of Wireless Drive Shaft Adapters.8th Oct 1917Box 37 \ 2  scan 153
Requesting a report on the suitability of wireless drive shaft adaptors.15th Oct 1917Box 37 \ 2  scan 154
Satisfactory fitting of a wireless drive adaptor by Faireys.19th Oct 1917Box 37 \ 2  scan 155
Letter from Joseph Stubbs, Limited concerning the supply of sample piston ring pot castings.5th Oct 1917Box 37 \ 2  scan 156
The testing of new, more elastic piston rings made from special metal pot castings.9th Oct 1917Box 37 \ 2  scan 157
Request to test new piston rings made of a special metal against existing standard rings.9th Oct 1917Box 37 \ 2  scan 158
Requesting an analysis of a special metal for piston rings received from Messrs. Stubbs. Ltd.12th Oct 1917Box 37 \ 2  scan 159
Chemical analysis report for special metal piston rings from Messrs Stubbs Ltd.18th Oct 1917Box 37 \ 2  scan 160
The analysis and experimental use of special metal piston rings from Joseph Stubbs Ltd.22th Oct 1917Box 37 \ 2  scan 161
Laboratory report on the chemical composition and physical properties of special metal piston rings from Stubbs Limited.18th Oct 1917Box 37 \ 2  scan 162
Query regarding pot castings and metal mixture for piston rings supplied by Messrs. Joseph Stubbs Ltd.2nd Nov 1917Box 37 \ 2  scan 163
From EFC to Mr. Hall requesting advice on altering the special metal mixture for piston rings from Messrs. J. Stubbs Ltd.5th Nov 1917Box 37 \ 2  scan 164
Instructions on the casting process and required material properties for piston ring metal.6th Nov 1917Box 37 \ 2  scan 165
The chemical composition of a material.5th Nov 1917Box 37 \ 2  scan 166
Urgent internal enquiry regarding the progress of piston rings in a special metal from Messrs. Joseph Stubbs Ltd.5th Nov 1917Box 37 \ 2  scan 167
Concerning piston rings and a lubricant chart, with handwritten notes about vehicle component checks.17th Nov 1931Box 37 \ 2  scan 168
Experimental results of special metal piston rings from Joseph Stubbs & Co.14th Nov 1917Box 37 \ 2  scan 169
Instructions regarding piston rings made from a special metal, noting the breakage percentage is the same as standard rings.19th Nov 1917Box 37 \ 2  scan 170
Summarizing reports on piston rings made from a special metal supplied by Messrs. J. Stubbs.20th Nov 1917Box 37 \ 2  scan 171
Acquisition and testing of steel for thrust bearings.26th Sep 1917Box 37 \ 2  scan 172
Notification of receipt of high carbon steel for ball thrust bearings from Messrs. Thos. Firth & Sons Ltd.3rd Dec 1917Box 37 \ 2  scan 173
Cover memo for instructions regarding an experiment on thrust bearing steel.3rd Jan 1918Box 37 \ 2  scan 174
Querying a stock discrepancy for steel required for thrust and roller bearings.27th Mar 1918Box 37 \ 2  scan 175
Requesting parts for the 'Eagle' engine carburetter petrol inlet pipe stays for the experimental department.26th Sep 1917Box 37 \ 2  scan 176
Cancellation notice for an experiment concerning the R.R.C.H. carburetter's petrol inlet pipe stays.1st Oct 1917Box 37 \ 2  scan 177
List of notable features for the Type H.C.7 carburettor.1st Feb 1917Box 37 \ 2  scan 178
Visit from H.M. Hobson Ltd. regarding their new 'Type H.C.7' carburetter.19th Sep 1917Box 37 \ 2  scan 179
Copy of a memo regarding obtaining four improved Claudel Hobson Carburetters for an 'Eagle' engine experiment.26th Sep 1917Box 37 \ 2  scan 180
The trial of a Claudel Hobson carburetter.26th Sep 1917Box 37 \ 2  scan 181
Letter to Messrs. H.M. Hobson Ltd. requesting to borrow Type H.C.7 carburettors for testing purposes on an 'Eagle' engine.5th Oct 1917Box 37 \ 2  scan 182
Letter from H.M. Hobson, Ltd. regarding the supply of H.C.7 carburetters for experimentation on an Eagle engine.8th Oct 1917Box 37 \ 2  scan 183
Formal order to Messrs. H.M. Hobson, Ltd. for two Type H.C.7 Carburetters.9th Oct 1917Box 37 \ 2  scan 184
Letter from H.M. Hobson, Ltd. confirming receipt of an order for two H.C.7 carburettors.10th Oct 1917Box 37 \ 2  scan 185
Notification regarding the receipt of two type HC7 Carburetters from Messrs. H. M. Hobson Ltd.17th Oct 1917Box 37 \ 2  scan 186
Letter from H.M. Hobson Ltd. requesting feedback on two H.C.7 carburettors sent for testing.22th Oct 1917Box 37 \ 2  scan 187
Letter to H.M. Hobson Ltd. regarding the fitting of H.C.7. carburettors to an 'Eagle' engine for testing.22th Oct 1917Box 37 \ 2  scan 188
Follow-up letter from H.M. Hobson Ltd. regarding test results for two H.C.7 Claudel-Hobson carburettors.15th Jan 1918Box 37 \ 2  scan 189
Letter to Messrs. Hobson Ltd. concerning a delay in testing H.C.7 carburettors.17th Jan 1918Box 37 \ 2  scan 190
Testing new Claudel-Hobson carburettors on 'Eagle' and 'Falcon' engines.17th Jan 1918Box 37 \ 2  scan 191
Upcoming testing of Claudel Duplex (H.C.7) carburettors and an inquiry for a new Zenith model.22th Jan 1918Box 37 \ 2  scan 192
Letter from the Air Board Technical Dept. regarding the dispatch and procurement of carburettors for testing.24th Jan 1918Box 37 \ 2  scan 193
Reply to the Air Board about engine carburettors.8th Mar 1918Box 37 \ 2  scan 194


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