Track conversion unit for wheel-driven tractor

Abstract From the Canadian patent

The disclosure herein describes a conversion unit for converting a wheel-driven tractor having a pair of front steering wheels and a pair of rear driving wheels, to a track-propelled vehicle; the unit includes a front assembly which is adapted to be mounted in replacement of the front axle of the tractor and includes a transverse beam, to each end of which is mounted a tandem-wheel arrangement. The latter consists of a pair of telescopically-engaged wheel supports having a tensioning device for maintaining the track over the frontmost wheel of the tandem and the rear driving wheel. Two rows of longitudinally-spaced guides are secured to the inner face of the track to confine the wheels …