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 a 4 Cup Sprengel Tank Unit with capacity calibrations.
| Identifier | ExFiles\Box 44\2\ Scan133 | |
| Date | 15th May 1928 | |
| Tank Unit to be electro Tinned all over. These calibrations were taken by H.M.H. Ltd. from actual Tank, drawing number F77952 on April 13. 1928. ± 12% of capacities in gallons. 1 Gallon. Datum or Zero. H.M. HOBSON, LTD 47-55 THE VALE, ACTON. W.3. TITLE: ROLLS ROYCE 40-50HP. 4 CUP SPRENGEL TANK UNIT. No OFF PER SET: 1. WHEN ORDERING QUOTE THIS DRAWING No: K.S.325.D. MATERIAL: Various SPECIFICATION: PATTERN: STAMPING MACHINE WHERE MARKED F.{Mr Friese} MACHINE ALL OVER. TOLERANCE ON MACHINING DIMENSIONS ±.010 UNLESS OTHERWISE STATED. THIS DRAWING CANCELS DRAWING No: THIS DRAWING IS CANCELLED BY DRAWING No: H.K.S. TELEGAGE DRAWN: W. TRACED: G.{Mr Griffiths - Chief Accountant / Mr Gnapp} CHECKED: DATE: 15.5.28 | ||