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).
Scheme for a Humfrey-Sandberg clutch for top and third easy engagement.
| Identifier | ExFiles\Box 128\2\ scan0036 | |
| Date | 18th February 1931 guessed | |
| DESCRIPTION SCHEME FOR HUMFREY-SANDBERG CLUTCH FOR TOP & THIRD EASY ENGAGEMENT, TO ROLLS-ROYCE GEARBOX. TO BE ASSEMBLED WITH GAP AT TOP. TO ALLOW OIL TO CENTRE FOR LUBRICATING PLAIN THRUST BEARING & H.S. CLUTCHES. ½" MOVEMENT OF SELECTOR ROD GIVES .1" END MOVEMENT AT CLUTCH. PITCH ON FORK 30º ONE R.H. ONE L.H.. THD. 3" PITCH. L.H. 12. START. SPECIAL SHAFT. PARTS SHEWN NEW, OR MODIFIED Interlock not to be fitted for this experiment PRINT ISSUED. ALTERATION Nº ACCESSION No. ASSOCIATED TRANSMISSION. LTD. 40 GROSVENOR GARDENS. S.W.1. DRAWN BY CHECKED BY SIGNED BY DATE SERIAL No DRG. No. H.S.650L. | ||