324 



LOGGING 



three sections. The loader rests on one section, another spans 

 the gap between the two cars and the third rests on the empty 

 car in the rear of the machine. As the loader proceeds along 

 the train the tracks are picked up by the loader and moved 

 behind it. 



The engine, drums, booms, and all working parts are mounted 

 on a steel frame v/hich is pivoted to a truck frame carrying 

 eight pairs of trucks, with wheels lo inches in diameter. The 

 loader can revolve in a complete circle by means of a geared 

 wheel attached to the truck frame, into which mesh two pinions 



Fig. 92. — A ]\Iodel C American Log Loader. 



which are driven by a double rotating engine. One form of 

 this loader uses a chain control for the rotary movement. The 

 weight of the loader is borne on five cone-shaped rollers attached 

 to the truck frame. 



The loader propels itself from one car to another by means of 

 a cable passed around a drum on the loader, with the free end 

 attached by a hook to one of the cars in the rear. 



A feature of this loader is a slack pulling device which consists 

 of a pair of friction sheaves mounted on the boom and driven by 

 a belt. The power is controlled by a hand lever. 



Two sizes of loaders are made, the smaller, No. 10, having 



