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 India Tyre & Rubber Company regarding testing results for new design tyres.17th Oct 1936Box 157 \ 6  scan0117
Invoice for experimental tyres and tubes from the India Tyre & Rubber Co. Ltd.23th Oct 1936Box 157 \ 6  scan0118
Official order for four 6.00x17 Super covers from India Tyre & Rubber Co. Ltd.26th Oct 1936Box 157 \ 6  scan0119
Letter from a tyre company regarding a complaint about chafing inner tubes fitted to a Bentley.4th Nov 1936Box 157 \ 6  scan0120
Order for India Covers and tubes for experimental cars.5th Jan 1936Box 157 \ 6  scan0121
Letter to India Tyre & Rubber Company regarding tyre stability and rim width on a Bentley.10th Nov 1936Box 157 \ 6  scan0122
Letter from a tyre manufacturer discussing rim widths, tyre construction, and a trial set of tyres for a Bentley.14th Nov 1936Box 157 \ 6  scan0123
Page two of a letter from India Tyre & Rubber Company Ltd. to W. A. Robotham regarding stability pressures.13th Nov 1936Box 157 \ 6  scan0124
Letter from India Tyre & Rubber Company regarding badly fitted tyres on a Bentley.18th Nov 1936Box 157 \ 6  scan0125
Letter to The India Tyre & Rubber Co. discussing the road holding qualities of 6 x 17' tyres compared to Dunlop tyres.7th Dec 1936Box 157 \ 6  scan0126
Letter from a tyre supplier regarding a manufacturing change to inner tubes to resolve a fitting issue.4th Dec 1936Box 157 \ 6  scan0127
Letter from India Tyre & Rubber Company regarding check tests on a Dunlop 6.00/17 tyre.9th Dec 1936Box 157 \ 6  scan0128
Letter from the Experimental Department requesting tyres for a Bentley chassis undergoing endurance testing in France.7th Jan 1937Box 157 \ 6  scan0129
Letter from India Tyre & Rubber Company Ltd. acknowledging receipt of a letter and advising the request has been passed on.8th Jan 1937Box 157 \ 6  scan0130
Letter to the India Tyre & Rubber Company discussing comparative tyre tests and performance.7th Jan 1937Box 157 \ 6  scan0131
Letter from India Tyre & Rubber Co. comparing their tyre's road contact and nonskid properties against a Dunlop tyre.6th Jan 1937Box 157 \ 6  scan0132
Letter to W. A. Robotham regarding a set of experimental wheels and a potential arrangement for Mr. Summers.6th Jan 1937Box 157 \ 6  scan0133
Specifications and tread pattern for a Dunlop '90' (Fort) tyre.6th Jan 1937Box 157 \ 6  scan0134
Specification sheet for an India Super 'B' tyre, including a tread pattern print and dimensional data.12th Apr 1937Box 157 \ 6  scan0135
Confirmation memo of a telephone conversation regarding an urgent order for tyres and tubes.12th Apr 1937Box 157 \ 6  scan0136
Four 6.50 wheels and India tyres for Mr. Lappin's car.14th Apr 1937Box 157 \ 6  scan0137
The despatch of four 6.50 x 17 wheels and tyres to the Kingsbury Department.14th Apr 1937Box 157 \ 6  scan0138
Requesting to obtain a further five 6.50 x 17 India covers and tubes.14th Apr 1937Box 157 \ 6  scan0139
Letter to the India Tyre & Rubber Co. regarding an order and testing of tyres for an Experimental Bentley chassis.20th Apr 1937Box 157 \ 6  scan0140
The dispatch of India covers and tubes to a location in France.28th Apr 1937Box 157 \ 6  scan0141
Letter from a tyre company regarding experimental tyre mould modifications and tyre pressures.30th Apr 1937Box 157 \ 6  scan0142
Letter from India Tyre & Rubber Company Ltd. confirming the shipment of tyres and tubes.30th Apr 1937Box 157 \ 6  scan0143
Letter to The India Tyre & Rubber Company increasing an order for 6½ x 17' tyres from six to twelve.3rd May 1937Box 157 \ 6  scan0144
Letter from a tyre company regarding the production of experimental tyres with a modified, quieter tread design.4th May 1937Box 157 \ 6  scan0145
Letter to The India Tyre & Rubber Co. Ltd. enquiring when specific 6.50 X 17 tyres will be ready for testing.24th Jun 1937Box 157 \ 6  scan0146
Letter to the India Tyre & Rubber Company regarding urgent noise complaints about existing tyres.25th Jun 1937Box 157 \ 6  scan0147
Letter from India Tyre & Rubber Co. regarding a delay in the delivery of 6.50/17 tyres.25th Jun 1937Box 157 \ 6  scan0148
Letter from the India Tyre & Rubber Company regarding a delay in the delivery of silent tread tyres.26th Jun 1937Box 157 \ 6  scan0149
Letter to India Tyre & Rubber Company Ltd clarifying the quantity of tyres required for testing.29th Jun 1937Box 157 \ 6  scan0150
Letter chasing a delayed delivery of silent tyres from the India Tyre & Rubber Company Ltd.28th Jul 1937Box 157 \ 6  scan0151
Letter from a tyre supplier regarding the dispatch of an order of tyre covers.30th Jul 1937Box 157 \ 6  scan0152
Letter from India Tyre & Rubber Company regarding the delivery of special silent tread tyres.2nd Aug 1937Box 157 \ 6  scan0153
Letter from a tyre manufacturer regarding the testing and design of a silent tyre for a Bentley.5th Aug 1937Box 157 \ 6  scan0154
Letter to India Tyre & Rubber Company expressing disappointment with the performance of their latest tyres for Bentley.16th Aug 1937Box 157 \ 6  scan0155
Letter from India Tyre & Rubber Company regarding the silent performance of 6.50/17 tyres and arranging a meeting.18th Aug 1937Box 157 \ 6  scan0156
Letter to India Tyre & Rubber Co. Ltd. regarding a meeting arrangement.19th Aug 1937Box 157 \ 6  scan0157
Letter from India Tyre & Rubber Company, Ltd. arranging a meeting in Derby.21th Aug 1937Box 157 \ 6  scan0158
Correspondence regarding tyre noise tests on a Bentley and a request for tyre tread measurements.26th Aug 1937Box 157 \ 6  scan0159
Comparison of new 6.50x17 India tyres against standard 5.50x18 tyres on a Bentley at Donnington.26th Aug 1937Box 157 \ 6  scan0160
Report discussing steering wobble and tyre performance tests.27th Aug 1937Box 157 \ 6  scan0161
Letter to India Tyre & Rubber Co. Ltd. comparing the cornering power and measurements of Dunlop and India tyres.27th Aug 1937Box 157 \ 6  scan0162
Letter from the India Tyre & Rubber Company regarding tyre performance data.28th Aug 1937Box 157 \ 6  scan0163
Letter from a tyre company regarding the redesign, testing, and shipping of tyres.6th Sep 1937Box 157 \ 6  scan0164
Design drawing for a 6.50/17 tyre tread pattern.1st May 1927Box 157 \ 6  scan0165
Letter from India Tyre & Rubber Company regarding tests on a new 6.50/17 tyre design.13th Sep 1937Box 157 \ 6  scan0166
Letter to The India Tyre & Rubber Co. Ltd. providing feedback on tyre testing, including cornering, silence, and oversteer performance.23th Sep 1937Box 157 \ 6  scan0167
Letter from India Tyre & Rubber Co. regarding modified tyres to improve cornering ability.24th Sep 1937Box 157 \ 6  scan0168
Table detailing the effective running radius of various tyres at 90 m.p.h.24th Sep 1937Box 157 \ 6  scan0169
Letter to The India Tyre & Rubber Co. detailing the results of skid pan tests on different silent tyres.4th Oct 1937Box 157 \ 6  scan0170
The return of sample India tyres to the supplier.5th Oct 1937Box 157 \ 6  scan0171
Letter to India Tyre & Rubber Company requesting a supply of 6 1/2 x 17 tyres and enquiring about the development of a silent tyre.21th Oct 1937Box 157 \ 6  scan0172
Letter from India Tyre & Rubber Company regarding the production of more 6.50-17 tyres and the receipt of a returned unsatisfactory set.22th Oct 1937Box 157 \ 6  scan0173
Letter from India Tyre & Rubber Company regarding the development and testing of 6.50/17 silent tread tyres for Bentley cars.4th Nov 1937Box 157 \ 6  scan0174
Letter from India Tyre & Rubber Company regarding tube failures on the Bentley.5th Nov 1937Box 157 \ 6  scan0175
Letter addressing complaints of tyre damage caused by coachbuilders refitting tyres after painting wheels.8th Nov 1937Box 157 \ 6  scan0176
Letter to The India Tyre & Rubber Company concerning silent tyres and seeking information on new Michelin 'Pilot' tyre patents.10th Nov 1937Box 157 \ 6  scan0177
Letter from India Tyre & Rubber Company regarding the 'Bentley Silent Tyre' design, production moulds, and patents.11th Nov 1937Box 157 \ 6  scan0178
Invoice from the India Tyre & Rubber Co. Ltd. for Bentley Tread Super Covers and seeking authorisation for payment.15th Nov 1937Box 157 \ 6  scan0179
Official covering orders for tyres from the India Tyre & Rubber Co. Ltd.16th Nov 1937Box 157 \ 6  scan0180
Letter from India Tyre & Rubber Company regarding the features and potential patent issues of the Michelin 'Pilot' tyre.17th Nov 1937Box 157 \ 6  scan0181
Letter to The India Tyre & Rubber Co. Ltd. requesting a set of experimental tyres.3rd Dec 1937Box 157 \ 6  scan0182
Letter to India Tyre & Rubber Co. Ltd. requesting confirmation of the effective circumference of a new tyre for a Bentley.8th Dec 1937Box 157 \ 6  scan0183
Letter from a tyre manufacturer regarding tyre circumference and running pressure.10th Dec 1937Box 157 \ 6  scan0184
Letter from a tyre manufacturer detailing performance specifications for a silent tyre.13th Dec 1937Box 157 \ 6  scan0185
Letter from a tyre manufacturer regarding the production of new silent tyres for Bentley, including mould making and size options.14th Jan 1938Box 157 \ 6  scan0186
Letter to India Tyre & Rubber Co. Ltd. regarding experimental tyre testing and supply.17th Jan 1938Box 157 \ 6  scan0187
Letter from India Tyre & Rubber Co. confirming they will proceed with making 6.50/16 and 6.50/17 tyres for testing.18th Jan 1938Box 157 \ 6  scan0188
Letter to a tyre company asking for their views on the difference in cornering power between 4-ply and 6-ply tyres.27th Jan 1938Box 157 \ 6  scan0189
Table detailing Bentley tyre weights and prices.29th Jan 1938Box 157 \ 6  scan0190
Letter to the India Tyre & Rubber Company about the potential loss of the Bentley tyre supply business due to pricing.1st Feb 1938Box 157 \ 6  scan0191
Letter from a tyre supplier regarding the price position of new tyres for the Bentley, mentioning competition.3rd Feb 1938Box 157 \ 6  scan0192
Request to obtain 10 India tyre covers, size 6.50 x 17, for use on experimental cars.21th Jun 1938Box 157 \ 6  scan0193
Letter from India Tyre & Rubber Company requesting recommended tyre pressures for a 4¼ litre Bentley.25th Jun 1938Box 157 \ 6  scan0194
Letter from the Experimental Department recommending tyre pressures for the 4.25-litre Bentley.27th Jun 1938Box 157 \ 6  scan0195
Letter from India Tyre & Rubber Company regarding the development of a new tyre for the Bentley.7th Jul 1938Box 157 \ 6  scan0196
Letter to India Tyre & Rubber Company regarding Mr. Robotham's absence.9th Jul 1938Box 157 \ 6  scan0197
Letter from India Tyre & Rubber Company, Ltd. acknowledging receipt of correspondence and advising of Mr. Robotham's absence.11th Jul 1938Box 157 \ 6  scan0198
Letter from India Tyre & Rubber Company, Ltd. confirming an arrival time in Derby.25th Jul 1938Box 157 \ 6  scan0199
Clarifying tyre requirements for mid-September.29th Jul 1938Box 157 \ 6  scan0200
Letter to The India Tyre & Rubber Co. Ltd. regarding a confusion over tyre sizes.29th Jul 1938Box 157 \ 6  scan0201
Dispatch of a tyre cover to The India Tyre & Rubber Co. Ltd. following an examination.5th Aug 1938Box 157 \ 6  scan0202
Letter to The India Tyre & Rubber Co. Ltd. regarding moulds for the new 6.50 x 17 standard Bentley tyres.5th Aug 1938Box 157 \ 6  scan0203
Letter from a tyre supplier regarding the production and shipment of tyres.9th Sep 1938Box 157 \ 6  scan0204
Order for five 6.50 x 16 India Super Covers and tubes.9th Sep 1938Box 157 \ 6  scan0205
Letter to the India Tyre & Rubber Company requesting two 4-ply tyres for testing precession torque and cornering power.10th Sep 1938Box 157 \ 6  scan0206
Urgent internal request to obtain India Super covers and tubes for experimental use.15th Sep 1938Box 157 \ 6  scan0207
Message inquiring about the expected delivery date for a new type of 16-inch tyre.16th Sep 1938Box 157 \ 6  scan0208
Short typed message slip, likely a telegram record.19th Sep 1938Box 157 \ 6  scan0209
Telegram received by telephone concerning the shipping of tyres from Indiatyre.19th Sep 1938Box 157 \ 6  scan0210
Telegram from 'Indiatyre' regarding the shipping of tyres.19th Sep 1938Box 157 \ 6  scan0211
Invoices for tyres and tubes and their dispatch to two separate addresses.5th Oct 1938Box 157 \ 6  scan0212
Letter to The India Tyre & Rubber Co. regarding tyre testing, returning a faulty tyre, and requesting a different type.6th Oct 1938Box 157 \ 6  scan0213
Letter from a tyre company discussing modifications to tyre treads to eliminate whining at speed.7th Oct 1938Box 157 \ 6  scan0214
The dispatch of an 'India Special cover' to the India Tyre & Rubber Co. Ltd in Scotland.6th Oct 1938Box 157 \ 6  scan0215
Payment for tyres and confirmation of their delivery status.10th Oct 1938Box 157 \ 6  scan0216


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