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).
General arrangement drawing of a pressure loading valve.

Identifier  ExFiles\Box 156\2\  scan0205
Date  22th September 1938
  
DRAWING NOT TO BE SCALED
PLV/A/47C
ALTERATIONS
A.{Mr Adams} THIMBLE ADDED TO PROTECT ADJUSTING SCREW.
B. 3466 TRACED & THIMBLE REGISTER ADDED 22.9.38
C. PATENT No ADDED 17/12/38 3651
PATENT No 22048/38
TO BE STAMPED HERE
2 5/8 DIA
1 HEX. 1.67" A/F
ADJUSTING SCREW
2 11/32
1 9/16
1/2
1" HEX. (1.67" A/F)
NEOPRENE SEAT
SCREWED 2 1/4 DIA X 16 T.P.I. R.H
SCALE:- FULL SIZE
STANDARD SETTING-
PRESSURE VALVES OPEN AT 5 LBS/□
VACUUM VALVES OPEN AT -3 LBS/□
GENERAL ARRGT. OF PRESSURE LOADING VALVE.
OFF PER SET
DR'N K.S.
APP.
CH'K S.M.D
TRC'D S.M.D
DATE 22.9.38
WORKING LENGTH + OR -
FACE AREA □
MACHINED DIMENSIONS WITHOUT LIMITS TO BE WITHIN 1 OF SIZE
MATERIAL
⊕ MACHINED ALL OVER
f MACHINED
G GROUND
SUPERSEDES
SUPERSEDED BY
PART No. PLV/A/47C
THE BRITISH THERMOSTAT CO. LTD.
TEDDINGTON WORKS. WINDMILL ROAD. SUNBURY. MIDDLESEX.
  
  


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