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).
Use of a clearance hole for a locking set screw on pistons for the 40/50 chassis to prevent deformation.
| Identifier | ExFiles\Box 35\2\ scan 151 | |
| Date | 9th October 1919 | |
| COPY. To EH. from Da.{Bernard Day - Chassis Design} c. to BN.{W.O. Bentley / Mr Barrington} c. to BY.{R.W. Bailey - Chief Engineer} c. to EP.{G. Eric Platford - Chief Quality Engineer} Da{Bernard Day - Chassis Design}3/CB9.10.19. PISTONS FOR 40/50 CHASSIS. X 3400 In reply to your memo EH4/LG8.10.19., we quite agree that one of the locking set screws should be in a clearance hole. When the piston heats the different coefficient expansion between aluminium and steel will probably itself cause the piston to be pulled oval. Da.{Bernard Day - Chassis Design} | ||