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).
The transmission and springing systems of various bus and coach chassis.
| Identifier | ExFiles\Box 179\1\ img112 | |
| Date | 24th November 1931 guessed | |
| (3) TRANSMISSION. The Daimler bus and coach chassis is equipped with the fluid flywheel and Wilson epicyclic box. A model of the epicyclic brake shows how a balanced anchorage is obtained by having one half of the band freely floating and anchored by a link at one point. No other form of easy change was seen. The synchro mesh was not being offered on the General Motors Bedford chassis, the reason given being that the professional driver soon becomes sufficiently expert not to need these aids to gear changing. SPRINGING. A high standard of comfort is demanded on modern high speed bus and coach chassis. There is considerable striving to get the centre of gravity lower to permit of the use of more flexible springs, and hydraulic dampers are in general use. The only independent system seen was on the Gilford chassis on which a large air cylinder and two vertical slide bars take command of each road wheel. This did not appear to be a very practical job. In conclusion it might be remarked that the commercial vehicle industry has made considerable technical progress in the last few years, and the general standard of the product appears to be in every way as high as that obtaining in the pleasure vehicle business. E.{Mr Elliott - Chief Engineer} | ||