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).
Modifications to Bentley rear brakes regarding the floating fulcrum bush, heat treatment, and plating of pins.
| Identifier | ExFiles\Box 102\6\ scan0170 | |
| Date | 9th February 1938 | |
| c. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} (K) BY/NS.{Norman Scott}11/G.9.2.38. c. RHE/BG. BENTLEY. REAR BRAKES. SECTION 6130. In service trouble is experienced because the floating fulcrum bush becomes tight in the brake shoes. It is thought that the aluminium closes down on to the bush. To obviate this, will you please alter the drawing to increase the heat treatment to 16 hours. The pin for the spring G.100322, the auxiliary strap fulcrum pin G.100792 and the pin G.100328 should be cadmium plated all over to prevent rusting. The diameters before plating should be adjusted to suit. These modifications are required in addition to the deletion of the drain holes in the brake drum side plate, to prevent the entry of water. STAMP: FEB 10 1938 BY/NS.{Norman Scott} NS{Norman Scott} | ||