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' detailing dimensions, materials, and testing procedures.
| Identifier | ExFiles\Box 149a\3\ scan0083 | |
| Date | 27th March 1930 | |
| TUBES TO BE ANNEALED BY THE SUPPLIERS AGAINST SEASON CRACKING ONLY LENGTH OF TINNING .300 +.050 .250 +.025 .625 +/-.010 .750 +/-.010 .007 +/-.001 4.000 .050 RAD INSIDE 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: MATRIX TUBE SCALE: 2/1 MACHINE ALL OVER OR WHERE MARKED THUS HEAT TREAT BRINELL MATERIAL: STANTON. SPEC N° 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. TRACED. CHECKED. APPROVED. LIMITS.O.K DATE. USED ON: 40/50 NOFF SECTION: 5250 STAMP: ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. Left edge text: R.R.774(200H)(59879 27-3-30) N&G LTD Handwritten bottom right: S/125 Luke Parkard | ||