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).
Proposed test for a new Bensport Brake Linkage design using an air damper.
| Identifier | ExFiles\Box 84\2\ scan0050 | |
| Date | 26th July 1933 | |
| BRX x206. To BY.{R.W. Bailey - Chief Engineer} from Da.{Bernard Day - Chassis Design} c. W.R. H.S. E.R. Da.{Bernard Day - Chassis Design}1/HP.26.7.33. Bensport Brake Linkage. Herewith is N. Sch. 3732, shewing the air damper connected between the balance lever and the front brake differential. In the upper view it is shewn as a vacuum cylinder, the clanks being checked by the piston compressing air that has leaked passed it during the outward stroke. As this makes a very simple arrangement it is desired to test it first, but in the event of it not being a complete success for any reason, we have shewn in the lower view a cylinder compressing air in both directions as how. To fit to an existing car, all that is needed is a new sheet metal differential lever and a hole drilled in the balance lever. The fit of the piston will be important and must be determined experimentally. It is suggested that an oilless bushing should be used in the outer bearing, and provided a little oil is put into the cylinder initially it is possible that no further lubrication will be required for say 5000 or 10000 miles. Da.{Bernard Day - Chassis Design} | ||