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                
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DescriptionDateIdentifier
Request to fabricate and fit a round nose piece for the rear silencer pipe on Bentley car 1.B.50.7th Sep 1938Box 152 \ 3  scan0260
Letter from Burgess Products Company regarding the despatch of heat-resisting steel, welding wire, and exhaust silencers.21th Sep 1938Box 152 \ 3  scan0261
Official order for exhaust silencers, perforated metal, and welding wire from Burgess Products Co. Ltd.28th Sep 1938Box 152 \ 3  scan0262
Requesting an official order be sent to Burgess Products Co.Ltd. for exhaust silencers.29th Sep 1938Box 152 \ 3  scan0263
Proposing two alternative rubber support designs for the Phantom III exhaust silencer to address squeaking issues.29th Sep 1938Box 152 \ 3  scan0264
Letter regarding the dispatch of an intake silencer and an experimental exhaust silencer for a Bentley.3rd Oct 1938Box 152 \ 3  scan0265
Communication regarding a silencer with non-standard filter elements and an experimental replacement.4th Oct 1938Box 152 \ 3  scan0266
Request to order one air silencer SK.640 from Burgess Products Co. Ltd. for testing on a B.III car.4th Oct 1938Box 152 \ 3  scan0267
Request for the construction of an experimental B.50 Air Silencer for a Bentley 50 car.5th Oct 1938Box 152 \ 3  scan0268
Letter from the Experimental Department to a supplier regarding the failure of a silencer on a Phantom III car.5th Oct 1938Box 152 \ 3  scan0269
Follow-up letter from Compoflex Company Ltd. regarding a sample of their flexible silencer.10th Oct 1938Box 152 \ 3  scan0270
Design and weight reduction of a cast iron baffle for a silencer.23th Oct 1938Box 152 \ 3  scan0271
The production and fitting of new rear exhaust pipe supports for the Bentley 111 chassis 9-B-V.26th Oct 1938Box 152 \ 3  scan0272
Design update for the Bentley 111 carburetter air silencer and air intake pipe.9th Dec 1938Box 152 \ 3  scan0273
Instruction regarding items for all Bentley lll cars.9th Dec 1938Box 152 \ 3  scan0274
Query regarding the use of an Air Silencer on an experimental production chassis.15th Dec 1938Box 152 \ 3  scan0275
Letter to Air Maze Ltd. providing the dimensions for an air silencer pipe to ensure compatibility with their air cleaner.19th Dec 1938Box 152 \ 3  scan0276
Instruction for the production of air silencers for 50 experimental Bentley V chassis.19th Dec 1938Box 152 \ 3  scan0277
Letter from Servais Silencers Ltd requesting further feedback on a silencer previously supplied and advising of a change in their agent.11th Jan 1939Box 152 \ 3  scan0278
Instruction to fit a carburetter air silencer with a rear outlet to a Bentley V chassis.17th Jan 1939Box 152 \ 3  scan0279
Follow-up letter to Servais Silencers Ltd. regarding the lack of reply and necessary improvements to their silencer.17th Jan 1939Box 152 \ 3  scan0280
Letter to Lea & Servais Ltd. regarding the performance of their silencer after a 10,053-mile test on a Phantom III car.5th Oct 1938Box 152 \ 3  scan0281
Letter from Servais Silencers Ltd regarding a complaint about a third-party representative and a failed silencer.21th Jan 1939Box 152 \ 3  scan0282
Letter to Servais Silencers Ltd. regarding their silencer products and a potential visit.30th Jan 1939Box 152 \ 3  scan0283
Letter from Burgess Products Company Ltd regarding an experimental intake silencer and a future quotation.3rd Feb 1939Box 152 \ 3  scan0284
Covering order for two types of Burgess silencers to be used on experimental cars.14th Feb 1939Box 152 \ 3  scan0285
Letter from Servais Silencers Ltd to the Experimental Department regarding a meeting arrangement.15th Feb 1939Box 152 \ 3  scan0286
Letter from the Experimental Department to Servais Silencers Ltd. arranging a meeting.18th Feb 1939Box 152 \ 3  scan0287
Letter from Servais Silencers Ltd regarding experiments with their silencers.22th Feb 1939Box 152 \ 3  scan0288
Modification to the Bentley V air silencer to improve its silencing degree.28th Feb 1939Box 152 \ 3  scan0289
Letter to Servais Silencers Ltd. regarding dimensional sketches for exhaust silencers.1st Mar 1939Box 152 \ 3  scan0290
Letter from Servais Silencers Ltd regarding the manufacture of silencers and the return of blueprints.6th Mar 1939Box 152 \ 3  scan0291
Letter to Servais Silencers Ltd. regarding sending an outlet connection for silencer B.13th Mar 1939Box 152 \ 3  scan0292
The despatch of an exhaust silencer outlet connection for a trial.13th Mar 1939Box 152 \ 3  scan0293
Reducing the period of concession for silencer replacements from 5 to 4 years.31th Mar 1939Box 152 \ 3  scan0294
Letter to A.C.-Sphinx Sparking Plug Co. enclosing a blueprint for an R.R. Air Silencer for trial.21th Apr 1939Box 152 \ 3  scan0295
Letter from AC-Sphinx Sparking Plug Co. seeking clarification on air silencer specifications.27th Apr 1939Box 152 \ 3  scan0296
Follow-up letter from Compoflex Company Ltd. regarding a decision on their flexible exhaust tubing.3rd May 1939Box 152 \ 3  scan0297
Letter to AC-Sphinx Sparking Plug Co. Ltd. chasing an update on an Experimental Air Silencer for a 25/30 HP car.11th May 1939Box 152 \ 3  scan0298
Request to the laboratory to analyse 3 steel samples from an American exhaust silencer.11th May 1939Box 152 \ 3  scan0299
Letter to AC-Sphinx Sparking Plug Co. Ltd. regarding a visit to discuss air silencer costs and to arrange for experimentation.1st Jun 1939Box 152 \ 3  scan0300
Letter from Burgess Products Company Ltd. following up on a discussion about Burgess Silencers.5th Jun 1939Box 152 \ 3  scan0301
Letter from the Experimental Department to Burgess Products Co. Ltd. arranging a visit.9th Jun 1939Box 152 \ 3  scan0302
Letter from Burgess Products Company Ltd providing directions for a visit.10th Jun 1939Box 152 \ 3  scan0303
Request for a retrospective official order for mild steel tubing needed for experimental work on B.V. cars.28th Jun 1939Box 152 \ 3  scan0304
Letter chasing the delivery of a sample air silencer for a 25/30 HP car for testing.30th Jun 1939Box 152 \ 3  scan0305
Letter from AC-Sphinx regarding a sample Air Intake Silencer with varying hiss gaps for testing on a 25/30 HP Car.4th Jul 1939Box 152 \ 3  scan0306
Letter regarding the dispatch of a prototype 7.5-inch silencer and six designs of a hiss gap for testing.4th Jul 1939Box 152 \ 3  scan0307
Requesting an official order for a list of exhaust silencers from Burgess Products Co. Ltd.5th Jul 1939Box 152 \ 3  scan0308
Request to send an official order to Burgess Products Co. Ltd. for an X549 exhaust silencer.7th Jul 1939Box 152 \ 3  scan0309
Despatch of exhaust silencer parts for special treatment.17th Jul 1939Box 152 \ 3  scan0310
Letter from the Experimental Department to Harboro' Aircraft Manufacturing Co. Ltd. regarding the special treatment of exhaust silencer parts.17th Jul 1939Box 152 \ 3  scan0311
Quotation from Burgess Products Company Ltd for Burgess Exhaust Silencers for the 'Ripple' Model.27th Jul 1939Box 152 \ 3  scan0312
Urgent internal memo requesting the purchase of two Buick air silencers for a 1939 series 60 model.15th Sep 1939Box 152 \ 3  scan0313
Official order for a silencer that has been fitted to an experimental car.4th Oct 1939Box 152 \ 3  scan0314
Letter from Burgess Products Company Ltd regarding the supply of exhaust silencers for testing on an 8-cylinder Bentley model.26th Jan 1940Box 152 \ 3  scan0315
Official order be sent to Burges Products Co. Ltd. for exhaust silencers.31th Jan 1940Box 152 \ 3  scan0316
A.C. Air Silencer for the B.60 Engine with Stromberg Down-Draught Carburetter.19th Mar 1940Box 152 \ 3  scan0317
Instructions detailing new parts for the A.C. Air Silencer assembly and related alterations.2nd Oct 1940Box 152 \ 3  scan0318
Resonant silencer and patent agreements with General Motors.30th Oct 1940Box 152 \ 3  scan0319
Letter to T.C. Worth regarding an air silencer design, patents, and potential use by other car manufacturers.27th Oct 1940Box 152 \ 3  scan0320
Myth chassis frame's compatibility with various exhaust silencer systems and an analysis of the Bentley 5 Corniche system.4th Nov 1940Box 152 \ 3  scan0321
Letter from British Filters Ltd regarding the suitability of manufacturing Air Silencers.4th Nov 1940Box 152 \ 3  scan0322
Alternative parts for the M.40 Test Rig Air Silencer.27th Jun 1941Box 152 \ 3  scan0323
Responding to a suggestion about fitting springs to the roller follower in the Marles steering gear.4th Aug 1937Box 153 \ 1  scan0001
Letter confirming a telephone conversation and an arranged visit to The Hoffmann Manufacturing Co. Ltd.7th Aug 1937Box 153 \ 1  scan0002
Letter from Adamant Engineering Company regarding the progress of an order for sample Cams.9th Aug 1937Box 153 \ 1  scan0003
Report evaluating the performance of steering cams produced by Fellows Co., with comparisons to Adamant Eng: Co. products.10th Aug 1937Box 153 \ 1  scan0004
The finish quality of manufactured pieces and the execution of track finishing.10th Aug 1937Box 153 \ 1  scan0005
Comparative figure table of measurements for the Phantom III and 25/30 HP models.11th Aug 1937Box 153 \ 1  scan0006
Return of 15 steering rollers to the Hoffmann Manufacturing Co. for inspection and rectification.11th Aug 1937Box 153 \ 1  scan0007
Letter to The Hoffmann Manufacturing Co. Ltd. regarding steering roller friction torque and preload.11th Aug 1937Box 153 \ 1  scan0008
Letter to Bakelite Ltd. requesting an experimental sample of 'Idelite' rod for steering ball joint pads.11th Aug 1937Box 153 \ 1  scan0009
Request to The Adamant Engineering Co. Ltd. to design a new cam and roller for a steering gear.14th Aug 1937Box 153 \ 1  scan0010
Letter from Bakelite Ltd. quoting a price for laminated rod material for steering ball joints.16th Aug 1937Box 153 \ 1  scan0011
Letter from Bakelite Limited quoting a price for 'IDELITE' Bakelite laminated rod material for steering ball joints.16th Aug 1937Box 153 \ 1  scan0012
Letter from Adamant Engineering Company regarding the specifications and advantages of their Standard '510' Gear.16th Aug 1937Box 153 \ 1  scan0013
Concluding page of a letter from Adamant Engineering Company, Ltd.16th Aug 1937Box 153 \ 1  scan0014
Official order for 'Idelite' bakelite laminated rod for use on the Phantom III.17th Aug 1937Box 153 \ 1  scan0015
Letter to Adamant Engineering Co.Ltd. regarding a suggestion to use their 1 11/16 standard size.19th Aug 1937Box 153 \ 1  scan0016
Request to examine fractured 0.187 diameter rollers from a 32-EX steering gear for material flaws after a failure.20th Aug 1937Box 153 \ 1  scan0017
Request to The Chilton Company for a book on current gear fabrication mentioned in Automotive Industries.20th Aug 1937Box 153 \ 1  scan0018
Letter to Adamant Engineering Co. Ltd. requesting a quotation for steering cams.21th Aug 1937Box 153 \ 1  scan0019
Request to place an order for 3 steering rollers for a Phantom III.24th Aug 1937Box 153 \ 1  scan0020
Letter from Adamant Engineering Company enclosing drawings for a Cam and Roller and clarifying specifications.20th Aug 1937Box 153 \ 1  scan0021
Letter from Adamant Engineering Company regarding the specifications and manufacture of Cams and Gears.20th Aug 1937Box 153 \ 1  scan0022
Letter to The Hoffmann Manufacturing Co. Ltd. requesting a quotation for steering rollers for the Phantom III chassis.24th Aug 1937Box 153 \ 1  scan0023
Defects and production issues with Marles Type Steering cams from a supplier.30th Aug 1937Box 153 \ 1  scan0024
Correction of rejected cams and a planned visit to a sister company in the U.S.A.30th Aug 1937Box 153 \ 1  scan0025
Proposal to change the finish of steering wheel nuts and locking plates for a cheaper alternative.30th Aug 1937Box 153 \ 1  scan0026
Requesting to send a broken Phantom III roller follower to Adamant Engineering Co. Ltd. for examination.31th Aug 1937Box 153 \ 1  scan0027
Letter to Adamant Engineering regarding the design and manufacture of special cams for a steering box.31th Aug 1937Box 153 \ 1  scan0028
Letter discussing a failure of roller bearings in a Phantom III chassis during endurance testing.31th Aug 1937Box 153 \ 1  scan0029
Blueprint of a steering cam for a 1:500 gear with 4.1 left-hand turns.31th Aug 1937Box 153 \ 1  scan0030
Request to place an official order with Adamant Engineering Co. Ltd. for three special steering cams for a Phantom III.31th Aug 1937Box 153 \ 1  scan0031
Letter from Adamant Engineering Company regarding the examination of broken 'Phantom lll' roller assembly parts.3rd Sep 1937Box 153 \ 1  scan0032
Letter from Hoffmann Manufacturing Co. Ltd. confirming an estimate and order for bearings.3rd Sep 1937Box 153 \ 1  scan0033
Letter from Adamant Engineering discussing safety concerns regarding modifications to a steering gear component.2nd Sep 1937Box 153 \ 1  scan0034
Letter from Adamant Engineering Company regarding Cams and a component failure on a Phantom III chassis.2nd Sep 1937Box 153 \ 1  scan0035
Letter from Adamant Engineering Company regarding holding up the issue of order no. 47681 pending a query.3rd Sep 1937Box 153 \ 1  scan0036
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