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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).
Technical drawing detailing a packing washer assembly for a front end, with various spring and washer configurations.

Identifier  ExFiles\Box 17\3\  Scan054
Date  1st August 1926 guessed
  
F.75379
PACKING WASHER AS FOR
FRONT END
(F.75390/1/2/3)
FURTHER PARTICULARS OF BALL PADS
AS ON F.4969.
F.75383
TO FRONT OF CHASSIS
F.75386
F.75381
F.9875
FOR FURTHER PARTICULARS OF THIS PIECE SEE F.4968
F.75388
DIMENSIONS:
.500 Dia
1.175 +10 -10
1.000 (PLUG)
.700 +10 0
.250
.810 +10 -10
.995 +10 -10
1.425 +5 -5
BALL PAD
.325
.475 +10 -10
.300 +10 -10
.375 .375 +10 -10
.375 +10 -10
15' 15'
5.600 (LENGTH OF TUBE SLOT)
1.965
2.100
STD. BALL PIN
5 15/16
2.850
.475 DIA -2
TABLE:
PARTICULARS OF SPRINGS:
2 SPRINGS F.75202 (EACH STRETCHED .100)
TOTAL INITIAL DEFLECTION --- .100
2 SPRINGS F.75202 (EACH STRETCHED .100)
TOTAL INITIAL DEFLECTION --- .187
2 SPRINGS F.74422
TOTAL INITIAL DEFLECTION --- .130
2 SPRINGS F.74422
TOTAL INITIAL DEFLECTION --- .260
2 SPRINGS F.74423
TOTAL INITIAL DEFLECTION --- .080
2 SPRINGS F.74423
TOTAL INITIAL DEFLECTION --- .140
PARTICULARS OF PACKING WASHER:
NO WASHER REQD.
THICKNESS 'A' = .087 (F.75390)
NO WASHER REQD.
THICKNESS 'A' = .130 (F.75392)
THICKNESS 'A' = .110 (F.75391)
THICKNESS 'A' = .170 (F.75393)
PROJECTION OF END PLUG WHEN SPRINGS ARE FREE:
.100
.187
.130
.260
.080
.140
MOST SATISFACTORY
  
  


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