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 for a 4 Cup D'Heurel Tanit unit with calibration data.
| Identifier | ExFiles\Box 44\2\ Scan129 | |
| Date | 15th May 1926 | |
| DIMENSIONS: 12 3/16 ± 3/32 11 5/8 ± 1/16 8 3/8" ± 1/16 5 5/8" ± 1/16 2 5/8" ± 1/16 1 Gallon. Datum or Zero. 5/16 CALIBRATION SCALE (Top row is Gallons, bottom row is measurement): Gallons: 0, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 Measurement: 23", 11/16, 5/8, 9/16, 1/2, 7/16, 3/8, 5/16, 1/4, 3/16, 1/8, 1/16, 0, 3/32, 1/8, 3/16, 1/4, 5/16, 3/8, 15/32, 1/2, 19/32, 11/16 CIRCULAR FLANGE DIMENSIONS: 10° 2 3/8" Dia. 1 15/16" P.C. 27/64 3/16 1/4 41/64 1 1/16" NOTES: Tank Unit to be electro tinned all over. These calibrations were taken by H.M.L. from actual Tank, drawing number F77952. on April 13, 1926. ± 12% of capacities in gallons. 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 TITLE BLOCK: H.{Arthur M. Hanbury - Head Complaints} M.{Mr Moon / Mr Moore} HOBSON, LTD. 47-55 THE VALE, ACTON. W.3. UNIT. TITLE: ROLLS ROYCE 40-50 H.P. 4 CUP D'HEUREL TANIT Nº OFF PER SET: 1 WHEN ORDERING QUOTE THIS DRAWING Nº: IKS325D. MATERIAL: Various PATTERN: STAMPING H.K.S. TELEGAGE. DRAWN: A.L. TRACED: G CHECKED: DATE: 15.5.26 | ||