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).
Schematic diagram of a Borg & Beck clutch assembly with dimensions and annotations.
| Identifier | ExFiles\Box 128\2\ scan0124 | |
| Date | 28th January 1932 guessed | |
| SHEET 4 13R SUGGESTED ARRANGEMENT OF RELEASE LEVER FOR FORK END. MAY BE SUPPLIED BY BORG & BECK CO. LTD. STEEL BLOCK THACKERY WASHER SECTION SHOWING KEYWAY DIMENSIONS SECTION SHOWING ARRANGEMENT OF ROCKER HEAD NOTE: CLUTCH BRAKE TO BE ADJUSTED TO COMPENSATE FOR FACING WEAR FOR SHIPPING PURPOSES ONLY A GAUGE BLOCK .080" THICK IS INSTALLED REMOVE AFTER CLUTCH IS INSTALLED INITIAL POSITION RELEASE POSITION WEAR IN POSITION 9-12 OR 15 SPRINGS MAY BE USED AS REQUIRED BORG & BECK CO. LTD LEAMINGTON SPA ENGLAND PATENTS PENDING TYPE 13R BROCK HOUSE, LANGHAM STREET, LONDON W.1. LEAMINGTON SPA WORKS 1 1/8" C BORE RECOMMENDED 3 1/8" 1.887" 1.496" 3/4" X 20 T.P.I. U.S. THREAD FOR 3/16" SQ KEY 1 3/8" SPLIT PIN HOLE TAPER 1 IN 8 1.925" 1.899" .374" .370" 8 1/8" 5 MIN 8" 2 5/16" INITIAL POSITION 2 1/8" RELEASE POSITION 5/16" MINIMUM CLEARANCE REQUIRED FOR SLEEVE TO SPIN 13.004" DIA MAX. 13.000" 13.005" FLYWHEEL BORE 13.010" 13.750 R.S. 40093/1 6-29/64" HOLES 14 1/2" O.D. | ||