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).
The substitution of taper bolts and pins with parallel ones in gearboxes for all cars to simplify assembly and reduce cost.
Identifier | ExFiles\Box 136\4\ scan0216 | |
Date | 20th April 1938 | |
To By & Rm.{William Robotham - Chief Engineer}...From RHC.{R. H. Coverley - Production Engineer} 1153 RHC.{R. H. Coverley - Production Engineer}1/MC.20.4.38. F.J. HARDY F.H. Your Comments please GEAR BOXES - ALL CARS Taper bolts and pins - In order to eliminate unsatisfactory hand reaming for taper bolts and pins, securing cones to gears - suggest the following list of taper bolts and pins be substituted for parallel bolts and pins to simplify assembly and reduce cost. GW. 876 Taper Pin 2nd Speed Outer cone. GW.1631 Taper Pin 1st Motion Shaft. G.85349 Taper Pin 3rd Speed Gear. G.54713 Taper Pin 2nd Speed Gear. G.57270 Taper Pin 1st Motion Shaft. RHC.{R. H. Coverley - Production Engineer} | ||