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).
Drawing for modifying a 20/25 water pump.
| Identifier | ExFiles\Box 178\3\ img016 | |
| Date | 12th January 1932 | |
| ORIGINAL. DY.{F R Danby} FROM E.{Mr Elliott - Chief Engineer} Copy to HS.{Lord Ernest Hives - Chair} 20/25. WATER PUMP. E2/M12.1.32. X5150. Referring to our telephone conversation this afternoon we send you herewith a drawing shewing how/we have carried the question of modifying the pump. It shews the P. 2. pump rotor with a volute of reduced section to give the necessary choking effect at high speeds. In view of your remarks with regard to the material of the pump casing, the dimensions as regards thickness, and the remarks with regard to the gland parts, should be disregarded. E.{Mr Elliott - Chief Engineer} | ||