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\ scan0169 | |
| Date | 30th November 1931 | |
| OPERATION MACHINE TOOL TOOL Nº 14990 14991 LENGTH OF TINNING .300 .250 .007 .025 R 120° 7/8 DIA +1/64 -0 3.250 .025 .665 1.100 .275 .90 .45 E56692 8 IMPRESSIONS SPACED AS SHOWN DETAIL OF IMPRESSIONS SCALE 5/1 ALL COPIES TO 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 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. DEVELOPEMENT OF TUBE SHOWING DISPOSITION OF IMPRESSIONS ROLLS-ROYCE, LIMITED. PRINT ROOM. 30 NOV 31 DERBY. TITLE. MATRIX TUBE MATERIAL BRASS SPEC'N Nº 2151 HEAT TREAT STANTON. BRINELL SCALE 2/1 MACHINE ALL OVER OR WHERE MARKED THUS USED ON 20/25 No OFF 1000 SECTION 5250 DRAWN AEG | ||