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 F. H. Royce recommending changes to the nuts, bolts, and locking mechanisms used in motorcar production.
| Identifier | ExFiles\Box 180\M6\ img016 | |
| Date | 22th October 1929 | |
| REG. TELEGRAPHIC ADDRESS: "ROYCE, WEST WITTERINGHenry Royce's home town." TWO WORDS ONLY. TELEPHONE: CHICHESTER 210. STATION—PASSENGER & GOODS: CHICHESTER—7 MILES. SOUTHERN RLY. "ELMSTEADHenry Royce's home in West Wittering," WEST WITTERINGHenry Royce's home town, NR. CHICHESTER. Mr. J.{Mr Johnson W.M.} C. Bentley. ROYCE LTD. MANCHESTER. 22nd. October 1929. ackd 23/10/29 Dear Mr. Bentley, Referring to nuts, bolts, set screws, etc, in all our motorcar work we use nuts one size smaller in the hexagon, and the heads of bolts and set screws are also reduced in the same way. This saves cost and space - i.e. you can finesse a neater and smaller job. I understand from buying bolts at the ironmongers that this practice is now quite common. I recommend you to adopt them. A considerable increase in strength can be gained without cost by adopting the standard Committee's fine Thread. These are now available at Marsden's, and other bolt makers. They tighten better, and are less liable to work loose. I recommend you adopt this practice. Most nuts and bolts with which there is danger if they come loose should be locked in some way:(spring washers or other means.) There is also the split nut scheme (castellated). Marsden's have these nuts with hollow faces, which are said to be quite effective as a lock. I doubt it, but we ought to do something to reduce our responsibility in case of accident. Yours faithfully, F.{Mr Friese} H.{Arthur M. Hanbury - Head Complaints} Royce | ||