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 | ||