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 396 of 2367        Sort by   Box   Date   Description

Filter      from        to             identifier   [all]
DescriptionDateIdentifier
Continuation of a letter discussing a sticking plunger and the high-speed performance of M.G. cars.30th May 1932Box 31 \ 4  Scan168
Extract detailing objections to the SU carburetter due to petrol dripping and inconsistency compared to their own fixed adjustment model.30th May 1932Box 31 \ 4  Scan169
Letter to the S.U. Company requesting feedback on designs for a 2.4-litre engine with a Powerplus blower.8th Jun 1932Box 31 \ 4  Scan170
Arranging a meeting with Mr. Skinner of the S.U. Carburetter Co. to discuss carburetters.10th Jun 1932Box 31 \ 4  Scan171
Letter to the S.U. Carburetter Co. confirming a meeting to discuss carburetters.10th Jun 1932Box 31 \ 4  Scan172
Letter from The S.U. Company confirming an appointment with Mr. Robotham.15th Jun 1932Box 31 \ 4  Scan173
Patent issues and royalties related to the R.R. Expanding Carburetter.18th Jun 1932Box 31 \ 4  Scan174
Letter to The S.U. Carburetter Co. Ltd. discussing carburetter specifications, requesting information on Alvis induction pipes, and noting an incorrect carburetter was supplied.30th Jun 1932Box 31 \ 4  Scan175
Letter from The S.U. Company discussing carburetter types and the induction systems used on Alvis cars.1st Jul 1932Box 31 \ 4  Scan176
Letter from The S.U. Company regarding the fitting of a balance pipe to stop piston flutter.1st Jul 1932Box 31 \ 4  Scan177
Blueprint of an exhaust manifold with integrated induction passages and pressure balance pipes.1st Jul 1932Box 31 \ 4  Scan178
Blueprint showing front and side elevations of a W-shaped four-port exhaust manifold.1st Jul 1932Box 31 \ 4  Scan179
Design for a 60mm automatic jet control for an S.U. type carburetter.7th Oct 1932Box 31 \ 4  Scan180
Suggested layout for a hot air pipe for a 25HP engine, showing various views and dimensions.7th Oct 1932Box 31 \ 4  Scan181
Blueprint for a right-hand feed lid for a Type T2 top feed float chamber.21th Oct 1931Box 31 \ 4  Scan182
Page featuring a purple 'RECEIVED' date stamp.29th May 1933Box 31 \ 4  Scan183
Blueprint of a jet assembly shown in the dropped position.14th Jul 1933Box 31 \ 4  Scan184
Blueprint for a Glandless Control Type carburetter body made from gun-metal casting.14th Jul 1933Box 31 \ 4  Scan185
Technical drawing and table showing the overall dimensions of standard SU carburetters.30th Jan 1933Box 31 \ 4  Scan186
Outline drawing of a 60mm Auto Jet Control mechanism.30th Jan 1933Box 31 \ 4  Scan187
The performance of brass and aluminium pistons in a carburetter for a 25 HP engine.4th Jul 1932Box 31 \ 4  Scan188
Letter to the S.U. Carburetter Co. discussing the performance and trial of their carburetter on a 25 HP car unit fitted to a tank.4th Jul 1932Box 31 \ 4  Scan189
Letter to The S.U. Carburetter Co. about testing their carburetters on a car and a tank.5th Jul 1932Box 31 \ 4  Scan190
Letter to the S.U. Carburetter Co. regarding criticism of the appearance of their carburettors.5th Jul 1932Box 31 \ 4  Scan191
Forwarding advice from a Mr. Skinner regarding carburetter tuning and the potential need for a different piston.6th Jul 1932Box 31 \ 4  Scan192
Letter from the S.U. Company concerning a specially finished carburetter and its price.7th Jul 1932Box 31 \ 4  Scan193
Carburetter fuel consumption and a request for a new needle.9th Jul 1932Box 31 \ 4  Scan194
Disappointing carburettor needle being too rich for slow riding.5th Jul 1932Box 31 \ 4  Scan195
Letter from The S.U. Company following up on a telegram about the suspension of a 1 1/2' Carburetter and a missing letter.13th Jul 1932Box 31 \ 4  Scan196
Letter to the S.U. Company comparing the performance of different carburetter models on an engine.15th Jul 1932Box 31 \ 4  Scan197
Letter to S.U.Co. Limited requesting a more suitable range of carburetter needles.2nd Aug 1932Box 31 \ 4  Scan198
Letter from The S.U. Company regarding the dispatch of a range of carburettor needles and charts.4th Aug 1932Box 31 \ 4  Scan199
Letter to The S.U. Company thanking them for enclosed needles.8th Aug 1932Box 31 \ 4  Scan200
Requesting a formal order for two S.U. Carburetters, confirming they have been tested and are satisfactory for use on the Peregrine engine.13th Aug 1932Box 31 \ 4  Scan201
Letter to the S.U. Company regarding results from their small carburettors, reproduction of plated needles, and supercharger testing.15th Aug 1932Box 31 \ 4  Scan202
Letter to Mr. Skinner of The S.U. Company regarding carburetter performance.6th Aug 1932Box 31 \ 4  Scan203
Despatch of S.U. carburetter needles to the S.U. Carburetter Co.6th Aug 1932Box 31 \ 4  Scan204
Letter from The S.U. Company regarding a 1 3/4 inch carburetter.16th Jul 1932Box 31 \ 4  Scan205
Letter from Electric Heating & Hardware Ltd. proposing a patented improvement for S.U. Carburetter needles.29th Aug 1932Box 31 \ 4  Scan206
Proposed S.U. carburetter scheme for the Bensport engine, referencing blueprint Lec.3190.6th Sep 1932Box 31 \ 4  Scan207
Letter to Electric Heating & Hardware Ltd. regarding a matter being taken up with W.O. Bentley and Mr. Skinner of the S.U. Carburetter Co.12th Sep 1932Box 31 \ 4  Scan208
Letter to S.U. Carburetter Co. Ltd. discussing carburetter designs for a supercharged car and seeking an opinion on a claimed modification.12th Sep 1932Box 31 \ 4  Scan209
Query regarding a claimed improvement to an S.U. carburetter by serrating the needle on a 6-litre Bentley.12th Sep 1932Box 31 \ 4  Scan210
Letter from Electric Heating & Hardware Ltd. regarding the production of carburetter needles, referencing W.O. Bentley and the S.U. Carburetter Co.13th Sep 1932Box 31 \ 4  Scan211
Letter from the S.U. Company regarding the testing of serrated needles for a Bentley car.13th Sep 1932Box 31 \ 4  Scan212
Modifications and safety concerns regarding the S.U. carburetter for the Bensport engine.14th Sep 1932Box 31 \ 4  Scan213
Letter from The S.U. Company regarding the supply of carburetter sets for 40 HP and 25 HP models.16th Sep 1932Box 31 \ 4  Scan214
Letter to The S.U. Carburetter Co. Ltd. regarding carburetter testing and new pistons for the 20/25 HP and 40/50 models.19th Sep 1932Box 31 \ 4  Scan215
Letter from The S.U. Company about a Bentley Special jet control issue and the supply of a conversion set.20th Sep 1932Box 31 \ 4  Scan216
Blueprint of a twin carburetor assembly with connecting linkages.22th Sep 1932Box 31 \ 4  Scan217
Confirming a copy of a letter addressed to Mr. T.C. Skinner of Messrs. S.U. Co. is attached.22th Sep 1932Box 31 \ 4  Scan218
Letter to The S.U. Co. regarding the development of a carburetter for a Bentley car, enclosing blueprints.21th Sep 1932Box 31 \ 4  Scan219
Letter to the S.U. Carburetter Co. regarding the return of jet control levers for a 4 litre Bentley.23th Sep 1932Box 31 \ 4  Scan220
The despatch of a parcel of jet control levers to the S.U. Carburetter Co.23th Sep 1932Box 31 \ 4  Scan221
Letter from The S.U. Company regarding the effect of German fuels on diaphragm pump fabric.29th Sep 1932Box 31 \ 4  Scan222
Letter to the S.U. Carburetter Co. regarding the supply and tuning of smaller carburetters for a 3.5 litre engine.29th Sep 1932Box 31 \ 4  Scan223
Letter to S.U. Carburetter Co. discussing carburetter performance and development.30th Sep 1932Box 31 \ 4  Scan224
Letter to the S.U. Carburetter Co. Ltd. regarding carburetter parts and an air silencer.30th Sep 1932Box 31 \ 4  Scan225
Letter from The S.U. Company regarding carburettors, air silencers and automatic jet control.3rd Oct 1932Box 31 \ 4  Scan226
Blueprint for a suggested air cleaner pipe.3rd Oct 1932Box 31 \ 4  Scan227
Letter to Mr. Skinner of The S.U. Company regarding difficulty fitting an air silencer to a carburetter due to space constraints.4th Oct 1932Box 31 \ 4  Scan228
Letter discussing a hot air pipe design, fuel despatch, and a request for data on a thermostatic device.6th Oct 1932Box 31 \ 4  Scan229
Letter to S.U. Carburetter Co. Ltd. regarding intake pipes and bonnet temperature figures.7th Oct 1932Box 31 \ 4  Scan230
Letter to The S.U. Carburetter Co. regarding bonnet temperature results and new carburetter development.11th Oct 1932Box 31 \ 4  Scan231
Log of engine temperature readings taken at one-minute intervals during a road test.11th Oct 1932Box 31 \ 4  Scan232
Test results showing water and under-bonnet air temperatures recorded at one-minute intervals.12th Oct 1932Box 31 \ 4  Scan233
Letter from The S.U. Company regarding temperature problems and a delay in completing two carburettors due to a piston issue.12th Oct 1932Box 31 \ 4  Scan234
Letter from the S.U. Company requesting for an inventor to inspect an engine to fit a Thermostatic/Jet Control device.27th Oct 1932Box 31 \ 4  Scan235
Letter to the S.U. Carburetter Co. Ltd. discussing carburetter size and engine performance.2nd Nov 1932Box 31 \ 4  Scan236
Letter from The S.U. Company regarding carburetter throttle bores and modifications.3rd Nov 1932Box 31 \ 4  Scan237
Tests on different sized S.U. carburettors on a J.1 engine.9th Nov 1932Box 31 \ 4  Scan238
Performance graph for a 20/25 HP engine, Unit C.9, with a J.L. head, comparing different configurations.7th Jan 1932Box 31 \ 4  Scan239
Reverse side of a document or drawing, stamped by the Print Room in Derby.10th Nov 1932Box 31 \ 4  Scan240
Requesting an order to be passed to S.U. Carburetter Co. for two HV4H carburettors for Bensport.11th Nov 1932Box 31 \ 4  Scan241
Discussion about potential patent infringement regarding a semi-expanding carburetter and the S.U. patent.28th Nov 1932Box 31 \ 4  Scan242
Letter from The S.U. Company regarding the fitting of a proposed thermostat for a Rolls-Royce.8th Dec 1932Box 31 \ 4  Scan243
Letter to the S.U. Carburetter Co. regarding the fitting of a thermostat and induction pipe.12th Dec 1932Box 31 \ 4  Scan244
Letter from The S.U. Company to W.A. Robotham regarding a thermostat and arranging to see the car.13th Dec 1932Box 31 \ 4  Scan245
Letter to The S.U. Carburetter Co. regarding the supply and heat treatment of thin sheet aluminium for experimental use.14th Dec 1932Box 31 \ 4  Scan246
Letter from The S.U. Company thanking Mr. Robotham for his letter regarding Sheet Aluminium.15th Dec 1932Box 31 \ 4  Scan247
Letter to The S.U. Carburetter Co. regarding modifications and testing of a car's carburetter and induction system.20th Dec 1932Box 31 \ 4  Scan248
Letter discussing the camshaft for a 25 HP engine and enclosing a separate letter about an air valve.20th Dec 1932Box 31 \ 4  Scan249
Letter from The S.U. Company regarding a delay in sending a car and enclosing a letter from Mr. Elliot.21th Dec 1932Box 31 \ 4  Scan250
Letter to S.U. Carburetter Co regarding issues with carburettor performance, distribution, and a rich low-speed mixture.28th Dec 1932Box 31 \ 4  Scan251
Letter to S.U. Carburetter Co. regarding a blueprint for the arrangement of carburetter controls.29th Dec 1932Box 31 \ 4  Scan252
Letter from The S.U. Company to Mr. Robotham acknowledging receipt of a drawing of the controls.30th Dec 1932Box 31 \ 4  Scan253
Letter to the S.U. Company requesting information on carburettors with water heated hot spots.31th Dec 1932Box 31 \ 4  Scan254
Dispatch request for six complete and assembled ball end controls to be sent to T.C. Skinner at S.U. Company.5th Jan 1933Box 31 \ 5  Scan001
Request to The S.U. Company for two 1 3/4' carburetters and an update on progress.2nd Jan 1933Box 31 \ 5  Scan002
Letter to The S.U. Company regarding hot spot testing and ordering a pressure pump for bench tests to be shown to Sir Henry Royce.13th Jan 1933Box 31 \ 5  Scan003
Letter to The S.U. Company regarding a pump blueprint, plugs, and an induction pipe.14th Jan 1933Box 31 \ 5  Scan004
Letter from The S.U. Company regarding slow running tests, pump stampings for Sir Henry, and a drawing of an automatic cylinder bore oiler.14th Jan 1933Box 31 \ 5  Scan005
Continuation page of a letter to The S. U. Company explaining the oil flow and piston mechanism in an engine.13th Jan 1933Box 31 \ 5  Scan006
Diagram of an apparatus for supplying extra oil during cold starts.13th Jan 1933Box 31 \ 5  Scan007
Letter to S.U. Company regarding a test run on a 25 HP car fitted with their altered induction pipes.23th Jan 1933Box 31 \ 5  Scan008
Letter from The S.U. Company discussing a chart that shows the performance differences between three carburetter needles following modifications to an induction pipe.23th Jan 1933Box 31 \ 5  Scan009
Graph showing test results for different induction pipe variations on a 25 HP experimental engine with an SU HV4 carburettor.25th Jan 1933Box 31 \ 5  Scan010
Letter from The S.U. Company regarding the running of the 25 HP car and a suggestion for fitting carburetters.25th Jan 1933Box 31 \ 5  Scan011
Letter from S. Smith & Sons regarding a proposed modification to an automatic jet control unit.2nd Feb 1933Box 31 \ 5  Scan012
Letter from The S.U. Company regarding a potential issue with pump diaphragms sticking together.3rd Feb 1933Box 31 \ 5  Scan013


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