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).
Letter from Dunlop regarding issues with detachable flanges on straight side rims for experimental cars.
| Identifier | ExFiles\Box 45\1\ Scan288 | |
| Date | 16th August 1924 | |
| X4050 TELEGRAMS: "DUNLOPS BIRMINGHAM." BY APPOINTMENT. TELEPHONE NO ERDINGTON 261 (Pte. Br.{T. E. Bellringer - Repair Manager} Ex EXTENSION............ DUNLOP RUBBER Cº LṬP FOUNDERS OF THE PNEUMATIC TYRE INDUSTRY. STATION: CASTLE BROMWICH (MID. RY.) GOODS: TO DUNLOP SIDINGS CASTLE BROMWICH. CAR ROUTE: TYBURN ROAD FROM STEELHOUSE LANE. TO FORT DUNLOP WORKS. CAR 63. REGISTERED OFFICES: DUNLOP HOUSE, 1, ALBANY STREET, LONDON, N.W. 1. ALL COMMUNICATIONS TO BE ADDRESSED TO THE FIRM. FORT DUNLOP, ERDINGTON, BIRMINGHAM. PLEASE QUOTE REFERENCE. Development Supt., 16th August, 1924 Messrs Rolls Royce, Ltd., Nightingale Road, DERBY. Your ref Hs{Lord Ernest Hives - Chair}4/LG.. Attention of Mr. Hives. X4050 Dear Sirs, I regret the delay in replying to your letter of the 10th. inst. but I have only just returned from holiday. I am much surprised to hear of the two cases of the detachable flanges leaving straight side rims on your experimental cars. I may say we have not had a single case ourselves and have been running these identical rims and flanges at high speeds on our own test cars for a very long time. Is it possible that these flanges had become strained, and had therefore lost something of their proper grip ? We have ourselves made tests to determine the liability of the rings to leave the rim by centrifugal force but have not succeeded in producing this result. As you know, precisely the same type of rim has been used in America for a very long time, and we have made special enquiries on this point, but cannot find the shedding of these rings is regarded as a trouble by any of the American tyre manufacturers. I am going very closely into the question, and I think | ||