FRICTION CLUTCH.
The power of an engine is usually applied to the traction wheel by a friction clutch working on the inside of the fly-wheel. (See [plan of Frick Engine].) The traction wheels are the two large, broad-rimmed hind wheels, and are provided with projections to give them a firm footing on the road. Traction engines are also provided with mud shoes and wheel cleaning devices for mud and snow.
THE FRICK COMPANY TRACTION ENGINE.
Plan view of “Eclipse” Traction Engine, showing arrangement of Patent Reverse Gear and Friction Clutch for Driving Pinion.