Gilson Brothers Co.

At that time, the Gilson Brothers' main products were limestone grinders, feed cutters, and concrete mixers.

Gilson Brothers products were also re-branded and sold under the names Montgomery Ward, Lawn-Boy, Ford, Snow Charger, Wizard, Plymouth, Marshall Wells, and others.

UniTrol (or Uni-Trol) was a patented Gilson Brothers innovation in snowblower drive linkage that allows operation of the clutch and gearchange with a single lever.

The act of engaging a gear presses a rubber-edged wheel against the flat steel surface of the spinning platter, which transfers power through 90 degrees to the drive axle and at a ratio inversely proportional to the distance from the center of the platter at which the wheel is engaged.

[5] These machines were powered by two-stroke engines (manufactured either by Briggs & Stratton, Tecumseh or OMC (Outboard Marine Corp).

A 1971 Gilson 432 snowmobile
Tiller sold under Western Auto
Unitrol snowblower model 55093, circa 1975