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).
Vacuum servo diagram for patent investigation.
| Identifier | ExFiles\Box 179b\1\ img167 | |
| Date | 16th November 1932 | |
| FROM DA.{Bernard Day - Chassis Design} C. to Mr. H.S. ORIGINAL BRAKE OPERATION. DA{Bernard Day - Chassis Design}6/M16.11.32. X/257 We send herewith N. sch. 3600., a diagram of a method of arranging a vacuum servo which R/ wishes you to investigate with a view to patenting. DA.{Bernard Day - Chassis Design} | ||