332 



LOGGING 



serve to carry the logs from the water to the platform along 

 which they are carried until they are rolled onto the dock 

 below. The chains are driven either by a steam, or gasoline 

 engine. The logs are loaded on cars chiefly by gravity. Skids 

 are placed from the docks to the load as the latter is built up, 

 and the top logs are rolled on to ^he load with cant hooks. 



UNLOADING LOG CARS 



The expeditious unloading of log cars is an important factor 

 in train operations because it reduces the amount of rolling stock 

 required. Logs are generally stored in ponds, streams, or on 

 storage skids, but at hardwoods plants and pulp mills they are 

 occasionally placed in large piles. 



Photograph by J.U. Fahrcnbach. 

 Fig. 96. —A Rolhvay at the :\IilI Pond. Texas. 



Rollways. — Where water storage is used the track is built 

 along the bank of the stream or pond, or else extended over the 

 water on piling. In the former case it is necessary to construct 

 an inclined rollway over which the logs may be rolled into the 



