The Lindsay Tricar, Clerkenwell Road, E.C.
(Stand 120a). –

Only one machine is exhibited here, but it is well worth very close attention. The first feature that strikes one is the well designed frame with which the tricar is built. As a matter of fact, it is principally staged to show Low's patent variable gear. This is on the contracting and expanding principle. The power is transmitted from the motorshaft to two pulleys arranged side by side on a second shaft. These pulleys are of V section, the centre piece being movable, so that as it is moved sideways the effective diameters of the two pulleys are varied. V section belts are employed for transmission purposes, and in order to maintain the tension of these the shaft carrying the double pulleys is able to rock, both the rocking and the variation in size of the pulleys being effected by the movements of a single lever. The result is practically an infinitely variable gear, so that the full horse power can be employed at all times, and the efficiency of the machine kept at the highest. It certainly seems both a promising and a simple device.

Report on the 1904 Stanley Show, The Motor Cycle, November 28th.