Rolls-Royce Archives
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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).
Drawing of a square matrix tube with annealing and pressure test instructions.

Identifier  ExFiles\Box 15\1\  Scan386
Date  20th September 1927
  
E80239. TUBES TO BE ANNEALED BY THE SUPPLIERS AGAINST SEASON CRACKING ONLY. LENGTH OF TINNING. APPROX. NET WT. OF 1 TUBE = 1 LB. 4 OZ. 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. SCALE 2/1. HEAT TREAT NIL. TITLE: MATRIX TUBE. MATERIAL: BRASS. SPEC No: 2151.
  
  


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