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).
Design alterations for a starting shaft, spring housing, and taper plug.
| Identifier | WestWitteringFiles\E\November1920\ Scan31 | |
| Date | 1st December 1920 | |
| To DA.{Bernard Day - Chassis Design} from E.{Mr Elliott - Chief Engineer} -2- EL/GB/12/20 Contd. (4)Contd.) The object is to afford more protection for the spring against mud and dirt. The lower end of the spring housing should be drilled for draining out any water which may accumulate. The snout should be made parallel. The spring housing should allow more clearance sideways for the shaft than shewn on N. scheme 653. (5) Mr. Royce would now like to make the starting shaft from a weldless steel tube butted at the jaw end to provide for the taper and thread. He thinks that we should buy these butted tubes of suitable dimensions. To accommodate this alteration the taper on the jaw should be altered from 1 in 6 to 1 in 10, and the thread increased in diameter. (6) The form of the starting jaws should be as indicated on drawing Lec.1312 which we are posting to-day. (7) The taper plug should be fastened in position on the engine starting jaw by rivetting or rolling operation, as in sketch. [SKETCH OF A TAPER PLUG ASSEMBLY] The plug can be first pressed into position against a turned collar if made a tight fit in the bore, and its protruding end can then be rivetted or rolled over. E.{Mr Elliott - Chief Engineer} [SIGNATURE] | ||