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 to The British Goodrich Co. Ltd. inquiring about cylindrical rubber blocks to replace coiled springs in an experimental apparatus.
| Identifier | ExFiles\Box 8\5\ 05-page26 | |
| Date | 8th June 1938 | |
| γ 1265 Experimental Dept. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}7/MH.{M. Huckerby} 8th. June 1938. The British Goodrich Co. Ltd., BURTON-ON-TRENT. For the attention of Mr.Skellon. Dear Sirs, We have an experimental apparatus in which we should like to replace coiled springs by cylindrical rubber blocks. The blocks must be 1" diameter and be to one of the following sets of particulars. (a) Rate in compression between two parallel surfaces 4800 lbs/in. Max. compression .100. Free length 1.430. or (b) Rate 9600 lbs/ins. Max. compression .080. Free length 1.550. Will you let us know whether rubber can be used to give these results either totally enclosed or unrestricted on its outside diameter, preferably the latter. Yours faithfully, for ROLLS-ROYCE LTD. | ||