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).
Specifications and use of a gear lever reverse stop spring.
| Identifier | ExFiles\Box 15\5\ Scan332 | |
| Date | 19th July 1932 | |
| X7310. BY.{R.W. Bailey - Chief Engineer} FROM HDY.{William Hardy} HDY{William Hardy}1/M19.7.32. x7310 x5310 x4027 C. to R.{Sir Henry Royce} SG.{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager} C. to HS.{Lord Ernest Hives - Chair} E.{Mr Elliott - Chief Engineer} DA.{Bernard Day - Chassis Design} GEAR LEVER. REVERSE STOP SPRING. Replying to By4/G28632., we find we have a print of the new spring G.55577. referred to, but we do not remember receiving any advice of its use. We did not reply at once as we could not fully understand G.55577., possibly because our arrangement drawing E.53693. does not shew the latest gear lever. We are not sure what the term 'working position' on G.55577. means. If it means that the button is fully up the spring appears to have been shortened compared with G.51695 and the stress with the button depressed .350" is 91,000 lbs. per sq.in. If the fully depressed position is meant then there is only .075" compression of the spring when the button is up, and the load is only .26 lbs. We cannot see any reason for shortening the spring so we presume that the length is unchanged, and provided that our figures are correct the deflection and load are too small. In any case would you kindly alter the spring to agree in all particulars with those we give in HDY{William Hardy}1/M25632. HDY.{William Hardy} | ||