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).
List of instructions from Mr. Royce for the arrangement of the brake gear on the 'Goshawk 1' NT Scheme 724.
| Identifier | ExFiles\Box 5\3\ 03-page025 | |
| Date | 26th January 1921 | |
| R.R. Bde. G/W T.R. Bk.{A. Birkett - Commercial Manager} No. 126. Folio 45 of 1927. X 8568 TO D.R. from E.{Mr Elliott - Chief Engineer} c. to CJ. c. to Wor.{Arthur Wormald - General Works Manager} c. to EFC. E3/G26.1.21. X 8568 RE " GOSHAWK 1" - ARRANGEMENT OF BRAKE GEAR- NT SCHEME 724. Referring to the above, would you kindly note the following list of points which are being sent in accord-ance with Mr. Royce's instructions :- (1) Reduce off set of hand brake mechanism by moving the rod .750" nearer to the chassis centre line in section "B" this appears to be as far as it will go. (2) Make differential in plan view .750" nearer chassis centre line to agree with alteration (1) (3) Brake levers on the differential shaft appear to be too narrow, which makes them look too long. It is presumed that the angular move-ment of these levers is now sufficiently large, that is, about the same as 40/50 H.P. chassis which we believe to be 40° approximately. (4) The levers carrying the forward pull rods on the differential shafts should be set back more to anticipate their movement, and give a growing leverage. (5) It is assumed that the levers on the adjusting countershaft are at the beginning of the adjust-ment. Both levers should then be set further back so that the lever for the forward pull rod which never alters, should have its proper movement, and the rear pull rod lever should anticipate its movement by half the amount of angular adjustment. (6) The forks used on the cable should be similar to those sent from here for "Goshawk 11". (7) The connection for the clutch countershaft from the pedal should be transferred to the top so as to drive direct with less spring, and it should be driven by a crankpin in the plan view from the pedal and lever. Contd. | ||