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).
Blueprint for a poppet valve for a Pierce Arrow 12 & V16 engine, from the Wilcox-Rich Corporation.

Identifier  ExFiles\Box 173\3\  img055
Date  28th January 1933
  
FINISH NO.
HEAT TREATMENT NO.
ALLOWABLE VARIATION ON DIMENSIONS NOT OTHERWISE SPECIFIED TO BE PLUS OR MINUS .010
GRIND SEAT CONCENTRIC WITH STEM WITHIN TOTAL INDICATOR READING
DIMENSIONS:
3.384
2 29/32
1 7/8
1 3/8
.6875
.6870
7/16
PART/MATERIAL CALLOUTS:
T-1549
T-1700
T-1670
T-1690
T-1680
T-1660
TITLE BLOCK:
WILCOX-RICH CORPORATION
DETROIT, MICH.
FOR: PIERCE ARROW 12 & V 16
THEIR PART NO.:
MATERIAL: CWS
CH'K'D: R.S.T
APP'D:
DATE: 1-28-33
NO.: T-1742
ALTERATION BLOCK:
ALT.
LTR.
ALTERATION
DATE
R.O.D. 8-21-23
  
  


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