Fitting a Terraplane cork clutch and spring drive, with a deflection curve diagram.
| Identifier | ExFiles\Box 85\2\ scan0152 | |
| Date | 5th February 1935 | |
| To RHC. {R. H. Coverley - Production Engineer} t u z Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} 18/KW.5.2.35. Clutch Spring Drives. 5-B-IV is at present fitted with a Terraplane cork clutch and spring drive. In spite of the very light flywheel no overrun rattles are apparent. We should like to be able to fit a similar scheme to any Bentley clutch. Will you please therefore take particulars from the Terraplane & now dismantled, and scheme an exactly similar drive to fit in our standard clutch. We believe this type of spring drive has a deflection curve approximately as shown [DIAGRAM] Vertical Axis: DEFLECTION Horizontal Axis: LOAD Bottom Left Quadrant: OVERRUN SIDE Bottom Right Quadrant: DRIVE SIDE [/DIAGRAM] Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} | ||
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).