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 The Self-Sealing Rubber Co. Ltd. concerning the fitting and protection of patent coupling discs.
| Identifier | ExFiles\Box 74\3\ scan0060 | |
| Date | 22th March 1923 guessed | |
| Continued. thus considerably weakening the tensile strength and durability. FITTING. The moulding of all rivet holes in the Discs greatly facilitates the ease and exactness of fitting and rivetting the steel face plates. PROTECTION. The outer periphery as well as the surfaces of all holes are well insulated by a rubber covering, against frictional and disintegration damage of all kinds. Our patent Coupling Discs are used by some of the largest Motor Manufacturing Firms, with invariably excellent results. We shall be pleased to receive your enquiries and to give you the most favourable possible quotations. Yours truly, THE SELF-SEALING RUBBER CO.LD. A.Franklin. (sgd) Director & General Manager. | ||