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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 of a clutch steel disc assembly, detailing its components and dimensions.

Identifier  ExFiles\Box 129\1\  scan0247
Date  3rd April 1937
  
L0200/ ON 181
DR. NO. 100207
3/16 DRILL - 10 HOLES
SPACED AS SHOWN
.047 SAW - 10 SLOTS
1/32 X 90° CHAMFER BOTH SIDES
SECTION AA{D. Abbot-Anderson} ENLARGED
2 PLATE
DRILL & C'SINK FOR 3/16 RIVET
1 PLATE GUIDE
DRILL FOR 3/16 RIVET
THE CLEVELAND GRAPHITE BRONZE CO.
CLEVELAND, OHIO
CLUTCH STEEL DISC ASSEMBLY
TOOLS MUST BE STAMPED WITH "T" NO. & PARTS WITH "T" NO. & MAT'L
LIMITS ON ALL FRACTIONAL MACHINE DIMENSIONS ± 1/64
± .010
REMOVE ALL PROJECTING EDGES AND SHARP CORNERS
SIDES MUST BE FLAT WITHIN .015
ROLLS-ROYCE, LTD. # G-50213
SCALE: FULL
DR. FH
OK. MK
APP.
DR. NO. 100207
Dimensions and angles include: 25°, 32 1/2°, 1 1/8, 2 1/4, 3/16 R, 2 1/2, 1/4, 5/16 R, 1/2, 8.400 ± .010, 10 1/2, 1R, 1/8 R, 3/8 R, 23/32, 1 7/16, 17/64, 1 1/16, 4 1/2, 1 7/32, 2 7/16, 3 7/8, .085, 5/8, 1 1/4, 11/16, 3/16.
  
  


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