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).
Manufacturing and testing instructions for a 'Matrix Tube', detailing annealing and pressure testing procedures.
| Identifier | ExFiles\Box 182\M19\ img162 | |
| Date | 27th March 1930 | |
| R.R.774(200M)(99879-27-3-30) H & G LTD NO OPERATION MACHINE TOOL TOOL NO TITLE: MATRIX TUBE SCALE: 2/1 HEAT TREAT: BRINELL MACHINE ALL OVER OR WHERE MARKED THUS MATERIAL: STANTON SPEC'N N.o: EACH TUBE TO BE TESTED TWICE & NOT BY THE SAME OPERATIVE. FIRST BEFORE BULGING, SECONDLY AFTER BULGING 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. TUBES TO BE ANNEALED BY THE SUPPLIERS AGAINST SEASON CRACKING ONLY. DRAWING NUMBERS: ES1389, ES1390 REVISIONS: B 2151, C 213B DIMENSIONS: 4.000 .300 +.150 LENGTH OF TINNING .250 +.125 6 7/8 M/M +1/10 M/M .007 7 1/2 M/M +1/10 M/M .050 RAD INSIDE REPLACE ALL COPIES TO: EXP: PATT WORKS: FORGE T.O.: S.R. D.O.: R.{Sir Henry Royce} R.D.: AMERICA T.D.: COST DRAWN: L.G. TRACED: CHECKED: APPROVED: LIMITS.O.K: DATE: USED ON: PART SECTION LIMITS: 40/50, 5250 STAMP: DERBY PRINT ROOM 21-1-30 HANDWRITTEN: 3/126, B.1386 | ||