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 Dunlop confirming the dispatch of five disc wheels and cover caps.29th Aug 1938Box 159 \ 1  scan0365
Despatch of two 4x17 Dunlop wire wheels to Messrs. Dunlops Ltd. for repair.31th Aug 1938Box 159 \ 1  scan0366
Letter to Dunlop Rim & Wheel Co. Ltd. regarding the return of two faulty wire wheels for observation and repair.31th Aug 1938Box 159 \ 1  scan0367
Letter from Dunlop Rim & Wheel Co. Ltd. about the inspection of two 4.00-17 wire wheels, reporting damaged spokes.6th Sep 1938Box 159 \ 1  scan0368
Letter from Dunlop Rim & Wheel Co. detailing the inspection results and repair costs for two wire wheels.12th Sep 1938Box 159 \ 1  scan0369
Letter to Dunlop Rim & Wheel Co. Ltd. confirming the decision to scrap wheels.19th Sep 1938Box 159 \ 1  scan0370
Letter to Dunlop Rubber Co. Ltd. confirming an order for various wheels and tyres.27th Oct 1938Box 159 \ 1  scan0371
Telegram requesting a price and drawing for a 4 x 16 lightweight rim from Dunlops in Birmingham.1st Nov 1938Box 159 \ 1  scan0372
Letter from Dunlop Rubber Co. concerning a drawing for a 4.00x16 lightweight rim and its testing.2nd Nov 1938Box 159 \ 1  scan0373
Letter from Dunlop Rim & Wheel Co. enclosing a blueprint for a lightweight seam welded rim.3rd Nov 1938Box 159 \ 1  scan0374
Blueprint drawing for a 4.00 E.L.P. lightweight rim.26th Aug 1938Box 159 \ 1  scan0375
Letter to Dunlop Rubber Co. Ltd. proposing a simpler means of tyre inflation for disc-covered wire wheels on an experimental Bentley.3rd Nov 1938Box 159 \ 1  scan0376
Letter from Dunlop Rubber Co. Ltd. regarding a modified valve arrangement for wire wheels with cover discs.4th Nov 1938Box 159 \ 1  scan0377
Letter to Dunlop Rubber Co. Ltd. requesting a quotation for six lightweight steel wheels for test purposes.5th Nov 1938Box 159 \ 1  scan0378
Letter from Dunlop regarding the possibility of producing a specific set of disc wheels and rims.7th Nov 1938Box 159 \ 1  scan0379
Letter from Dunlop Rubber Co., Ltd. regarding the supply and production of special wire wheels and Michelin rims.8th Nov 1938Box 159 \ 1  scan0380
Letter from Dunlop Rubber Co. discussing the practicality of a suggested valve arrangement for cover discs.8th Nov 1938Box 159 \ 1  scan0381
Letter from Dunlop Rubber Co. Ltd. regarding test results on the power consumption of tyres.9th Nov 1938Box 159 \ 1  scan0382
Power consumption data from dynamometer tests on various tyre sizes under different load and inflation conditions.10th Nov 1938Box 159 \ 1  scan0383
Letter to Dunlop Rubber Co. Ltd. regarding special wheels with Michelin rims and a misunderstanding over tyre sizes.10th Nov 1938Box 159 \ 1  scan0384
Letter from Dunlop Rubber Co., Ltd. confirming details for an order of 72V and 72R type wire wheels.10th Nov 1938Box 159 \ 1  scan0385
Letter to Dunlop Rubber Co. Ltd. concerning a special rubber valve for tyre inflation.11th Nov 1938Box 159 \ 1  scan0386
Letter from Dunlop regarding the production of disc wheels and an increase in wheel track.11th Nov 1938Box 159 \ 1  scan0387
Correspondence from Dunlop Rubber Co. regarding disc wheels and enclosed photographs.11th Nov 1938Box 159 \ 1  scan0388
Letter from Dunlop Rubber Co. enclosing prints for two types of special wheels against order 75216.11th Nov 1938Box 159 \ 1  scan0389
Blueprint for a Dunlop Type 72R wire wheel.5th Nov 1938Box 159 \ 1  scan0390
Blueprint of a Dunlop Type 72V Wire Wheel.10th Nov 1938Box 159 \ 1  scan0391
Letter to Dunlop Rubber Co. Ltd. authorising the costing of an experimental set of lightweight wheels.14th Nov 1938Box 159 \ 1  scan0392
Letter from Dunlop arranging a meeting to discuss valve fitments for cover discs.14th Nov 1938Box 159 \ 1  scan0393
Order to be sent to Dunlops for five wheels.17th Nov 1938Box 159 \ 1  scan0394
Letter from Dunlop Rubber Co., Ltd. confirming an order for five wheels at a special price of £2 each.18th Nov 1938Box 159 \ 1  scan0395
Letter from Dunlop Rubber Co. Ltd. regarding the dispatch of one set of special tyres and a fourteen-day delay on another.18th Nov 1938Box 159 \ 1  scan0396
Letter from Dunlop Rubber Co. concerning experiments on a disc, including valve fitting and rubber application.21th Nov 1938Box 159 \ 1  scan0397
Letter from Dunlop Rubber Co. Ltd. providing a quotation for rubber materials for wheel covering discs.13th Dec 1938Box 159 \ 1  scan0398
Letter to Dunlop Rubber Co. regarding an issue with an experimental wire wheel on a Bentley chassis.15th Dec 1938Box 159 \ 1  scan0399
Letter from Dunlop Rubber Co. Ltd. concerning issues with wheels on a Bentley chassis and the Wraith.16th Dec 1938Box 159 \ 1  scan0400
Letter from Dunlop Rim & Wheel Co. Ltd. regarding a delivery delay for five disc wheels.20th Dec 1938Box 159 \ 1  scan0401
Letter from the Experimental Department to The Dunlop Rim & Wheel Co. Ltd. regarding the return of two wheels.22th Dec 1938Box 159 \ 1  scan0402
Requesting the despatch of two 4.50' x 16' wire wheels to The Dunlop Rim & Wheel Co. Ltd.22th Dec 1938Box 159 \ 1  scan0403
Letter from Dunlop confirming the completion and dispatch of an order for five 4.00-16' lightweight disc wheels.30th Dec 1938Box 159 \ 1  scan0404
Wing stay for use with Bensport flared front wings.26th Apr 1933Box 159 \ 2  scan0001
Alternative wing design for a Bentley vehicle.2nd Jun 1933Box 159 \ 2  scan0002
Design, aerodynamics, and production considerations for cycle-type wings on Bentley cars.15th Jul 1933Box 159 \ 2  scan0003
The impracticality of cycle type wings and potential modifications for a 100 m.p.h. Bentley.18th Jul 1933Box 159 \ 2  scan0004
Advising against the use of cycle type wings on Bentley cars due to issues experienced by Lagonda.19th Jul 1933Box 159 \ 2  scan0005
Aerodynamic efficiency and practical issues of cycle-type wings for a Bentley.20th Jul 1938Box 159 \ 2  scan0006
Design of cycle type wings for a Bentley, addressing issues of mud slinging and wind resistance.25th Jul 1933Box 159 \ 2  scan0007
Response regarding the experimental fitting of cycle-type wings on a Bentley.27th Jul 1933Box 159 \ 2  scan0008
Schedules and illustrations for cycle-type wings on the 100 M.P.H. Bensport model.8th Sep 1933Box 159 \ 2  scan0009
Condition of front wings, their replacement, and the potential of rust-proofed steel wings.13th Dec 1933Box 159 \ 2  scan0010
Letter to Park Ward & Co. confirming the fitting of new front wings with stone shields to a Bentley Experimental Saloon.13th Dec 1933Box 159 \ 2  scan0011
Delivery, mounting, and painting of front wings for model I.B.3.14th Dec 1933Box 159 \ 2  scan0012
Faults on a Bentley 10,000 miles Trials Car, specifically regarding the wings, footwells, and seat runners.18th Dec 1933Box 159 \ 2  scan0013
Two failures of wing stays on a Bentley, detailing the causes and a recommendation.21th Dec 1933Box 159 \ 2  scan0014
Safety concerns and testing requirements for cycle type wings on a Bentley speed model.1st Jan 1934Box 159 \ 2  scan0015
Request to prepare a front axle with wing stays for testing cycle type wing fixings on a Bumper Chassis.5th Jan 1934Box 159 \ 2  scan0016
From Sg. to Hs. requesting a reply regarding cycle type wings for a Bentley.9th Jan 1934Box 159 \ 2  scan0017
Producing and testing new alloy steel stays for cycle-type wings intended for a Bentley.11th Jan 1934Box 159 \ 2  scan0018
Parts list with instructions for modifying the front axle, wings, and wing stays on a Bentley chassis.12th Jan 1934Box 159 \ 2  scan0019
Progress of bumper tests on cycle-type wing stays for Mr. Fedden's new chassis.24th Jan 1934Box 159 \ 2  scan0020
Front wing dithering on a Bentley and the improvements made.27th Jan 1934Box 159 \ 2  scan0021
Front wing dithering issues on Bentley production cars.29th Jan 1934Box 159 \ 2  scan0022
Production difficulties with wing stays for cycle-type wings and the revised schedule for bump tests.29th Jan 1934Box 159 \ 2  scan0023
Issues with Bentley cycle type wings and their spring steel stays.7th Feb 1934Box 159 \ 2  scan0024
Standard shape and fitting of cycle-type wings for a Bentley.13th Feb 1934Box 159 \ 2  scan0025
Experiments with cycle-type front wings on Bentley chassis B-157-AE and B-189-AE.15th Feb 1934Box 159 \ 2  scan0026
Requirement for new stub axles and wing stays for Bentley Chassis B.157-AE and B.189-AE.21th Feb 1934Box 159 \ 2  scan0027
The material for Bentley Cycle Type wings, suggesting a change to mild steel for the stays.26th Feb 1934Box 159 \ 2  scan0028
Complaint of rigidity at the wing attachment by adding an outer pressing to the Bentley Wing Stays.28th Feb 1934Box 159 \ 2  scan0029
The use of mild steel instead of spring steel for Bentley Cycle Type wing stays.26th Feb 1934Box 159 \ 2  scan0030
Instructions to produce and fit cycle-type front mud wings to Bentley chassis B-157-AE and B-189-AE.26th Feb 1934Box 159 \ 2  scan0031
Letter to Park Ward & Co. detailing the correct method for preparing sheet steel wings for painting.1st Sep 1934Box 159 \ 2  scan0032
Letter to Messrs. Park Ward & Co., Ltd. regarding the investigation into the use of steel for wings.1st Sep 1934Box 159 \ 2  scan0033
Query regarding the performance and rust resistance of steel wings supplied by Park Ward for experimental cars.8th Nov 1935Box 159 \ 2  scan0034
Experimental car tests comparing the rust and durability of steel wings versus aluminium wings.11th Nov 1935Box 159 \ 2  scan0035
Sending drawings (LeC.5262) for the Wraith II front wing and instructions for the coachbuilder.18th Sep 1936Box 159 \ 2  scan0036
Design of the Wraith II front apron.18th Sep 1936Box 159 \ 2  scan0037
Modifications to address Bentley front apron rattles, including clearances and harder rubber mountings.27th May 1937Box 159 \ 2  scan0038
Modifications to the Wraith III rear wings, axle, and body.3rd Sep 1937Box 159 \ 2  scan0039
Internal order request for 6 sets of Wing Stays & Fittings for the Wraith III Chassis.9th Oct 1937Box 159 \ 2  scan0040
Order for 6 sets of parts for the Wraith III Chassis front apron.9th Oct 1937Box 159 \ 2  scan0041
Changes to the rear wheelarch clearances and rear track dimensions.11th Aug 1938Box 159 \ 2  scan0042
Secret memo regarding the layout for front wings on model 2.B.50, ensuring compatibility with different suspension track widths.17th Aug 1938Box 159 \ 2  scan0043
Secret memo about a revised print for front wings, requesting the destruction of the original drawing.19th Aug 1938Box 159 \ 2  scan0044
Revised prints for front and back wings, specifically addressing changes in overall width and back track measurements.20th Aug 1938Box 159 \ 2  scan0045
Specifications for rear wings, track width, and wheel arch clearances.22th Aug 1938Box 159 \ 2  scan0046
Revised scheme for the front wings on the Bentley 50 and Wraith 80 models.23th Aug 1938Box 159 \ 2  scan0047
Revised rear lamp bracket for the Bentley V to fit the helmet of the wing.6th Feb 1939Box 159 \ 2  scan0048
Scheme for wing lamps on the Bentley V chassis, designed to be an integral yet accessible part of the wing.6th Feb 1939Box 159 \ 2  scan0049
Jig produced by Park Ward for bending Bentley S. front wing stays and the necessary drawing modifications.20th Jun 1939Box 159 \ 2  scan0050
Unbooked Spitfire wing delivered to the Clan Foundry and the agreement to pay for its carriage.23th Nov 1940Box 159 \ 2  scan0051
Letter requesting information to process payment for the transport of a Spitfire Wing.19th Nov 1940Box 159 \ 2  scan0052
Letter to Dunlop Rubber Co. Ltd. enclosing a copy of a letter sent to their Coventry branch.3rd Jan 1939Box 159 \ 3  scan0001
Letter to Dunlop Rim & Wheel Co. Ltd. regarding an urgent investigation into wheel nuts fouling on Wraith chassis spoke heads.3rd Jan 1939Box 159 \ 3  scan0002
Letter from Dunlop discussing the performance, design, and manufacturing cost of special lightweight wheel rims.4th Jan 1939Box 159 \ 3  scan0003
Letter from Dunlop confirming a meeting to discuss the lock nut clearance on 'Wraith' wheels.4th Jan 1939Box 159 \ 3  scan0004
Letter from Dunlop Rubber Co. confirming a meeting arrangement with Mr. Sharp.5th Jan 1939Box 159 \ 3  scan0005
Letter to Dunlop Rubber Co. regarding modifications to Wraith model wheel hubs and specifications for wire wheels.9th Jan 1939Box 159 \ 3  scan0006
Confirming a verbal order for wheels and inner tubes from Dunlops, requesting a formal order to be sent.9th Jan 1939Box 159 \ 3  scan0007
To Mr. Hardy regarding the delivery of two 4.50 x 16' wire wheels from Dunlop Rubber Co. Ltd.9th Jan 1939Box 159 \ 3  scan0008


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