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 the manufacturing and testing of a brass matrix tube.
| Identifier | ExFiles\Box 105\1\ scan0167 | |
| Date | 20th May 1931 | |
| RR 686. (21 H) (11,126. 21-1-31) B.J.H. No. OPERATION MACHINE TOOL TOOL No. BT{Capt. J. S. Burt - Engineer} OUT COMPLETE LENGTH OF TINNING BOTH ENDS .900 .650 .300 .250 8 M/M DIA. +1/10 M/M -0 .007 3.750 +1/8 -0 7 M/M DIA. +1/10 M/M -0 THE 4 IMPRESSIONS TO BE EQUALLY SPACED. DETAIL OF IMPRESSIONS. SCALE 5/1. 120° .0125 RAD. .025 E.56327 PIECE Nº NOT TO BE MARKED REPLACE ALL COPIES TO:- EXP. 1 PATT. WORKS FORGE T.O. S.R. D.O. R.{Sir Henry Royce} R.D. AMERICA T.D. COST DRAWN LDF TRACED I.L. CHECKED D.T.O. APPROVED A.J. LIMITS O.K. W. DATE 20-5-31 USED ON: 20 H.P No. OFF: SEE.P.B SECTION: 5250 TUBES TO BE ANNEALED BY THE SUPPLIERS. AGAINST SEASON CRACKING ONLY. EACH TUBE TO BE TESTED TWICE, NOT BY THE SAME OPERATIVE. FIRST BEFORE BULGING, SECONDLY AFTER BULGING & MAKING IMPRESSIONS, BY AN AIR PRESSURE OF 15 LBS. PER SQ. INCH. THE TUBES BEING IMMERSED IN WATER ON EACH TEST FOR A PERIOD OF NOT LESS THAN 5 SECONDS. MACHINE ALL OVER OR WHERE MARKED THUS SCALE 2/1 HEAT TREAT BRINELL STANTON TITLE: MATRIX TUBE. MATERIAL: Brass SPECn Nº: 2151 ROLLS-ROYCE, LIMITED PRINT ROOM, 30 NOV 31 DERBY. | ||