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).
Technical drawing for a 'Matrix Tube' with specifications for annealing and pressure testing.
| Identifier | ExFiles\Box 16\2\ Scan010 | |
| Date | 21th April 1931 | |
| TOP AREA: TUBES TO BE ANNEALED BY THE SUPPLIERS AGAINST SEASON CRACKING ONLY B 2151 C 2138 ESI389 ESI390 8/1386 DRAWING NOTES & DIMENSIONS: LENGTH OF TINNING .300 +50 .250 +25 7 3/4 +1/16 -0 .007 2 1 6 7/8 +1/8 -0 4.000 .050 RAD INSIDE MAIN NOTE: 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 TITLE BLOCK: SCALE 2/1 HEAT TREAT TITLE. MATRIX TUBE MACHINE ALL OVER OR WHERE MARKED THUS BRINELL STANTON. MATERIAL SPEC N° RIGHT HAND TABLE: ROLLS-ROYCE LIMITED 21 APR. 31 REPLACE ALL COPIES TO EXP PATT. WORKS FORGE T.O. S.R. D.O. R R.D. AMERICA. T.D. COST. DRAWN. TRACED. CHECKED. APPROVED. LIMITS. O.K. DATE USED ON N° OFF SECTION 40/50 5250 LEFT BORDER: RR.774(200M)(9987S-27-1-30) N & G LTD NO OPERATION MACHINE TOOL TOOL NO BOTTOM RIGHT CORNER: 3/125 Luke per Rad | ||