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 to India Tyre & Rubber Co. Ltd. concerning the supply and testing of experimental tyres.22th Nov 1938Box 157 \ 6  scan0217
Letter from the India Tyre & Rubber Company regarding the development and supply of experimental tyres.24th Nov 1938Box 157 \ 6  scan0218
Page two of a letter from India Tyre & Rubber Company regarding a new design model.24th Nov 1938Box 157 \ 6  scan0219
Letter to Mr. Worth of India Tyre & Rubber Co. Ltd. to arrange a meeting.25th Nov 1938Box 157 \ 6  scan0220
Letter from India Tyre & Rubber Company, Ltd. to S. H. Grylls confirming a suitable meeting date.28th Nov 1938Box 157 \ 6  scan0221
Order for various experimental tyres and tubes.20th Dec 1938Box 157 \ 6  scan0222
Letter from India Tyre & Rubber Company regarding the forwarding of four 6.50/16 Super Covers with smooth shoulders.20th Dec 1938Box 157 \ 6  scan0223
Letter from a tyre supplier regarding tyre specifications and delivery schedules.21th Dec 1938Box 157 \ 6  scan0224
Page 2 of a thank you letter to W. A. Robotham from the India Tyre & Rubber Company Ltd.21th Dec 1938Box 157 \ 6  scan0225
Letter from the Experimental Department to The India Tyre & Rubber Co. Ltd. regarding figures on tyre wear and an article on wind and rolling resistance.22th Dec 1938Box 157 \ 6  scan0226
Letter from India Tyre & Rubber Co. Ltd. seeking confirmation on an order for experimental tyres.26th Dec 1938Box 157 \ 6  scan0227
Letter of thanks from a tyre company regarding figures on tyre wear, self-centring torque, and an article on wind and rolling resistance.28th Dec 1938Box 157 \ 6  scan0228
Letter to The India Tyre & Rubber Co. Ltd. clarifying the tread specification for an order of tyre covers.28th Dec 1938Box 157 \ 6  scan0229
The despatch of an inner tube section for Dunlop balloon tyres.1st Dec 1926Box 158 \ 1  scan0001
Letter to St. Helens Cable & Rubber Co. Ltd. inquiring about the supply of heavy-section inner tubes for 6.75' Dunlop well base balloon tyres.18th Dec 1926Box 158 \ 1  scan0002
Letter from a supplier regarding the specifications and supply of Everlastic Tubes.24th Dec 1926Box 158 \ 1  scan0003
Letter to St. Helens Cable & Rubber Co. about inner tube specifications and pricing.30th Dec 1926Box 158 \ 1  scan0004
Letter from a supplier discussing the weight and price of an Everlastic Tube.6th Jan 1927Box 158 \ 1  scan0005
Letter to St. Helens Rubber Co. Ltd. requesting a price for Everlastic Inner Tubes.7th Jan 1927Box 158 \ 1  scan0006
Price quotation from St Helens Cable & Rubber Co Ltd for 33 x 6.75 Balloon Everlastic Tubes.14th Jan 1927Box 158 \ 1  scan0007
Index of topics regarding car performance with a specific focus on tyres.14th Jan 1927Box 158 \ 1  scan0008
On car performance, detailing the effect of out of truth and out of balance tyres on steering.14th Jan 1927Box 158 \ 1  scan0009
Technical analysis of high-speed wheel wobble, focusing on the effects of tyre pressure and size.14th Jan 1927Box 158 \ 1  scan0010
High-speed wobbles caused by tyre tread pattern, irregular wear, and inflation pressure.14th Jan 1927Box 158 \ 1  scan0011
Tyre pressures, steering stability, and wobbles.14th Jan 1927Box 158 \ 1  scan0012
Factors affecting tyre wear, including temperature, road conditions, and tyre construction.14th Jan 1927Box 158 \ 1  scan0013
Page discussing Rapson double-tread tyres and the effect of balloon tyres on petrol consumption, including a performance graph.14th Jan 1927Box 158 \ 1  scan0014
Two graphs comparing the rolling resistance of different tyre types under machine and road test conditions.14th Jan 1927Box 158 \ 1  scan0015
Report page with a graph showing rolling resistance of a cord tyre against tyre temperature and inflation pressure.14th Jan 1927Box 158 \ 1  scan0016
Page discussing the riding characteristics, benefits, and technical details of balloon tyres.14th Jan 1927Box 158 \ 1  scan0017
Comparison of high pressure and balloon tyres for 20 HP and 40/50 HP models, including data on effective circumference.14th Jan 1927Box 158 \ 1  scan0018
Graph showing the increase in tyre radius with speed, alongside a discussion on the issue of tyre noise.14th Jan 1927Box 158 \ 1  scan0019
Continued discussion on tyre characteristics, including tread patterns, wear, and non-skid properties.6th Jan 1927Box 158 \ 1  scan0020
Blueprint comparing three types of Dunlop tyres and well base wheels with their dimensions and tread patterns.6th Jan 1927Box 158 \ 1  scan0021
Letter from St Helens Cable & Rubber Co Ltd following up on instructions for the manufacture of Everlastic Tubes.27th Jan 1927Box 158 \ 1  scan0022
Letter to St.Helens Cable Co.Ltd. rejecting a price quote as being too high.28th Jan 1927Box 158 \ 1  scan0023
Letter from a supplier discussing the price of Everlastic Tubes and a possible future cost reduction.12th Feb 1927Box 158 \ 1  scan0024
Letter from a supplier offering a 20% price reduction on Everlastic Tubes due to increased output.28th Mar 1927Box 158 \ 1  scan0025
Communication with St Helens Cable & Rubber Co.Ltd about Everlastic Tubes.5th Apr 1927Box 158 \ 1  scan0026
Letter from a supplier discussing the cost and benefits of 'Everlastic Tubes' to overcome objections.2nd Apr 1927Box 158 \ 1  scan0027
Letter from a supplier discussing the benefits and performance of fitting 'Everlastic Tubes' to vehicles.2nd Apr 1927Box 158 \ 1  scan0028
Letter to St. Helens Cable & Rubber Co. Ltd. declining their claim regarding the fitment of Everlastic Tubes.5th Apr 1927Box 158 \ 1  scan0029
The high cost of a pair of Everlastic inner tubes from St. Helens Cable & Rubber Co. Ltd for an experimental test.12th Apr 1927Box 158 \ 1  scan0030
The weight of an Everlastic Tube from the St. Helens Cable & Rubber Co. and a request to requisition two.3rd May 1927Box 158 \ 1  scan0031
Price confirmation for two Everlastic Inner Tubes before purchase.3rd May 1927Box 158 \ 1  scan0032
Letter from St Helens Cable & Rubber Co Ltd confirming an order for Everlastic Inner Tubes.6th May 1927Box 158 \ 1  scan0033
Letter to The St. Helens Rubber Co. Ltd. clarifying valve specifications for Everlastic Tubes.11th May 1927Box 158 \ 1  scan0034
Letter from St Helens Cable & Rubber Co Ltd confirming an order for low-pressure Everlastic inner tubes.15th May 1927Box 158 \ 1  scan0035
List of weights for different tyre and wheel combinations.10th Nov 1927Box 158 \ 1  scan0036
Customer complaints about tyre noise and requesting tests on alternative tyre brands.10th Nov 1927Box 158 \ 1  scan0037
Road test comparing the noise and smoothness of Michelin Comfort tyres against Dunlop tyres on a Phantom and Silver Ghost.27th Nov 1927Box 158 \ 1  scan0038
Comparison of noise generated by different types of tyre treads to determine the source of noise.14th Nov 1927Box 158 \ 1  scan0039
From Hs. to Roy requesting a set of Goodrich tyres due to dissatisfaction with Dunlop tyre noise.14th Nov 1927Box 158 \ 1  scan0040
The delivery and testing of British Goodrich tyres.29th Nov 1927Box 158 \ 1  scan0041
Tyre noise, comparing the performance of British Goodrich tyres against Dunlop tyres.9th Dec 1927Box 158 \ 1  scan0042
Weight of a specific Goodrich tyre cover and tube.10th Dec 1927Box 158 \ 1  scan0043
Tyre noise and comparing the silence of British Goodrich tyres to standard Dunlop tyres.21th Dec 1927Box 158 \ 1  scan0044
Letter to Dunlop Ltd. arranging a visit to demonstrate less noisy tyres and discuss rubber blocks for chassis construction.17th Dec 1927Box 158 \ 1  scan0045
Comparative tyre noise tests and discussions with Dunlop to produce a quieter tyre.22th Dec 1927Box 158 \ 1  scan0046
Alarming tyre wear and high-speed steering wobbles in American cars, with a comparison to Stutz and the Phantom steering.6th Feb 1928Box 158 \ 1  scan0047
S.A.E. proposals on tire simplification and the adoption of new wheel and tire sizes.6th Feb 1928Box 158 \ 1  scan0048
Discontinuance of certain wheel and tire sizes and anticipated industry changes.6th Feb 1928Box 158 \ 1  scan0049
Table of proposed new American tire and rim sizes to replace existing equipment.10th Mar 1928Box 158 \ 1  scan0050
Letter from Dunlop regarding variation in tyre wear and the testing of smaller diameter wheels in America.10th Mar 1928Box 158 \ 1  scan0051
Copy of a pamphlet from The Rubber Association of America Inc. regarding the reasons for variation in tire wear.10th Mar 1928Box 158 \ 1  scan0052
The reasons for variations in tire wear, focusing on factors like speed and temperature.10th Mar 1928Box 158 \ 1  scan0053
Technical bulletin detailing various factors that contribute to tire wear.1st Dec 1927Box 158 \ 1  scan0054
Paper discussing the causes of tire wear, such as brake adjustment and misalignment, with a detailed table comparing tire mileage in Detroit and Buffalo.1st Dec 1927Box 158 \ 1  scan0055
'Amiens Accident' and making recommendations on driver qualifications and driving in wet conditions.11th Apr 1928Box 158 \ 1  scan0056
The dangers of skidding, tyre performance on wet loam roads, and analysis of a fatal accident involving a car hitting a tree.11th Apr 1928Box 158 \ 1  scan0057
Continued page discussing the provision of the best quality workers and materials.18th May 1928Box 158 \ 1  scan0058
Letter discussing the standardization of wheels, tires, and D.C. rims for various car models.18th May 1928Box 158 \ 1  scan0059
Letter discussing the adoption of a narrower series of D.C. rims following a letter from Mr. Paull of Dunlop, and preparing to order trial equipment.18th May 1928Box 158 \ 1  scan0060
Letter to Dunlop Tire and Rubber Corporation discussing drop centre rim designs and international standards.21th Feb 1928Box 158 \ 1  scan0061
Wheel rim specifications, comparing company standards with Ford's and arguing against certain changes.21th Feb 1928Box 158 \ 1  scan0062
Letter about new equipment enabling the removal of flaps and the adoption of new rims as a British standard.18th May 1928Box 158 \ 1  scan0063
Chart detailing standard tire and rim sizes and their equivalent replacements.18th May 1928Box 158 \ 1  scan0064
Confirming the dispatch of a set of British Goodrich tyres from London to Derby.23th Apr 1928Box 158 \ 1  scan0065
Report from the Rubber Association of America on the proposal to fit smaller wheels.14th Sep 1928Box 158 \ 1  scan0066
The causes of rapid tyre tread wear.1st May 1928Box 158 \ 1  scan0067
Memorandum, reprinted by the S. M. M. & T., concerning the causes of rapid tyre tread wear.11th Oct 1935Box 158 \ 1  scan0068
Technical bulletin detailing the various factors that influence tyre wear.11th Oct 1935Box 158 \ 1  scan0069
Guide on the causes of fast tyre wear, including inflation, wheel size, brake adjustments, alignment, and driving style.14th Nov 1928Box 158 \ 1  scan0070
Ordering 32 x 6.75' tyres and sourcing them from Goodrich as an alternative to Dunlops.14th Nov 1928Box 158 \ 1  scan0071
The testing and mileage performance of Goodrich tyres, with comparisons to Dunlop tyres.4th Dec 1928Box 158 \ 1  scan0072
Test report detailing mileage and wear conditions for Goodrich Cord Tyres.7th Dec 1927Box 158 \ 1  scan0073
The collection of five worn Goodrich tyres and two tubes for return to the manufacturer.1st Dec 1928Box 158 \ 1  scan0074
Stating the inability to test a set of Firestone tyres.20th Jan 1930Box 158 \ 1  scan0075
Testing Firestone tyres and the return of Dunlop tyres from customers' cars.4th Jan 1930Box 158 \ 1  scan0076
The trial of Goodrich tyres, focusing on their silence compared to Dunlop and MA-2 tyres.14th Jun 1932Box 158 \ 1  scan0077
Tyre testing policy, expressing a preference for Dunlop tyres over Goodrich.17th Jun 1932Box 158 \ 1  scan0078
Internal correspondence regarding the selection and standardisation of Dunlop MA-2 tyres over Goodyear.20th Jun 1932Box 158 \ 1  scan0079
Internal memorandum discussing a customer's complaint about tire noise on granite setts and potential solutions.1st Nov 1933Box 158 \ 1  scan0080
The type of tyres fitted to a car under complaint by Peter Ermen Esq.3rd Nov 1933Box 158 \ 1  scan0081
Customer's tire noise issue and its resolution by changing from Dunlop to Goodyear tires.6th Nov 1933Box 158 \ 1  scan0082
The skidding characteristics of tyres and various road surfaces.1st Mar 1934Box 158 \ 1  scan0083
Coefficient of friction for different tyre types and resistance to skidding on various wet road surfaces.29th Oct 1935Box 158 \ 1  scan0084
Concerning literature from the British Tyre & Rubber Company about their B.T.R Gilt Edges Tyres.29th Oct 1935Box 158 \ 1  scan0085
Advertisement for British Goodrich Safety Gilt-edged Tyres.29th Oct 1935Box 158 \ 1  scan0086
Advertisement for the British Goodrich 'Safety Gilt-edged' tyre.27th Sep 1935Box 158 \ 1  scan0087


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