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).
Observations and modifications made to a cam grinder machine.
| Identifier | ExFiles\Box 76\2\ scan0057 | |
| Date | 13th March 1914 | |
| R.R. 235 A (150 H) (V.V. 585. 23.2.14) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 0363. X632 re CAM GRINDER. J.{Mr Johnson W.M.} for R.{Sir Henry Royce} 13.3.14. M1/G13314. to you. The following points may be of interest The weight we had on the jockey pulley arm, in the travelling countershaft, was (even in the vertical position) too much for the wheel spindle, causing it to run hot. We have removed the weight and have slackened off the springs, supporting the tightening pulley arm, and find that the wheel spindle runs quite satisfactorily. The "pull to start and pull to stop" striking gear works well but would on another machine have the objection that you cannot employ it for revolving the work through a part of a revolution. The water system so far, has not given any trouble and has been made without flexible hose, as you wished. The travelling beam and countershaft require but little power to move them. The quick return stroke of the Automatic Feed Arc gives a businesslike air to that portion of the machine. We have altered the central steady rest, to act as a grip stay, so that it prevents the X1185 | ||