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).
Blueprint of a D.W.S. portable hydraulic jack, small type.
| Identifier | ExFiles\Box 140\2\ scan0216 | |
| Date | 2nd April 1939 | |
| FLUID RESERVOIR RELEASE VALVE SECTION OF SMALL JACK MAXIMUM EXTENSION 11 9/16" = 'A' 15" = 'B' 18 15/16" = 'A' 23 1/16" = 'B' FILLER THIS PRINT OR COPIES CONFIDENTIAL THE PROPERTY OF SMITH'S JACKING SYSTEMS LTD RELEASE VALVE AFTER 1-4-39 SCALE - FULL SIZE ALT. No SMITH'S JACKING SYSTEMS LTD. JACKALL WORKS EDGWARE ROAD, N.W.2. DONALD SESSIONS & CO. LTD., 906 HARROW ROAD, WILLESDEN, N.W.10. TYPE: MATERIAL AS RECEIVED DESCRIPTION: D.W.S. PORTABLE HYDRAULIC JACK MATERIAL SPEC.: MATERIAL SIZE TREATMENT: FINISH MODEL: HYD. PORTABLE SMALL TYPE. No OFF PER CAR: 1 DRAWN: EWR APP. BY: DATE: 2-APR 1939 DRG. No: 1670x2 | ||