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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 the arrangement of a Size L.6 Nash Hytor Vacuum Pump.

Identifier  ExFiles\Box 122\4\  scan0186
Date  2nd June 1937
  
PRELIMINARY
80 15/16"
29 1/2"
14 3/4"
14 3/4"
21 7/8"
27 5/16"
13 1/2"
1"
21 3/4"
10 1/2"
5 1/4"
2"
INLET AND OUTLET FLANGES 11" DIA.
8-5/8" DIA. BOLTS ON 9 1/4" B.C. DIA.
BOLT HOLES OFF CENTRE LINES.
1/2" SEAL WATER CONNECTION TO COLD WATER SUPPLY.
MIN. DIST. TO REMOVE HEAD AND CONE.
3"
1/2" SHUT OFF VALVE
L.6 VACUUM PUMP
CUSTOMERS L.D.& M.{Mr Moon / Mr Moore} MOTOR
25 H.P. 400V. 1460 R.P.M.
3PH 50CY. TO DRG. 101S102.
1/2" ADJUSTING VALVE.
50 7/8"
22 1/8"
28 3/4"
23 1/4" CRS.
11 5/8"
11 5/8"
1 1/2"
UNLOADING DRAIN
1/2" CHECK VALVE AND PIPING NOT SUPPLIED.
15 1/8"
2 1/2"
5 1/4"
5 1/4"
10 1/2"
7"
5 5/8"
2 5/8"
11 1/4" CRS.
24 1/2" DIA. PULLEY.
600 R.P.M.
55 1/2" CRS.
10" DIA PULLEY
1440 R.P.M.
10 1/4"
10 1/4"
13 1/2"
5 1/2"
2 1/2"
NOTE:- PIPING SHOWN DOTTED NOT SUPPLIED.
11" CRS.
4-7/8" DIA. HOLES FOR FOUNDATION BOLTS.
20 1/2" CRS.
23"
PLAN OF PUMP FEET.
ARRANGEMENT OF SIZE L.6 NASH HYTOR VACUUM PUMP.
SCALE 1"=1'-0"
2-6-1937.
NASH ENGINEERING CO (GT. BRITAIN) LTD.
HYTOR WORKS.
COMMERCE WAY, PURLEY WAY,
CROYDON.
DRG. No G.B.320.
  
  


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