POWER SKIDDING 



205 



or four independent skidding drums mounted either on a heavy 

 frame and trucks or on a frame which is supported at the corners 

 on legs or "spuds." The first t^-pe is transported under its own 

 power by a chain drive, and the latter type during transit rests 

 on a flat car which is drawn by a locomotive. 



The machine has a heavy pulling boom at one or both ends of 

 the frame, from the peak of which blocks are suspended through 

 which the skidding lines pass out. The pulling booms are guyed 

 on either side to give them rigidity. 



Fig. 57. ^ .\ Portable Snaking Machine operating in a Texas Longleaf Pine 

 Forest. 



Portable snaking machines are not equipped with a loading 

 device but are suppHed with a cable by means of which logs 

 may be piled up along the track ready for a special loading 



When the snaking machine is not transported on its own 

 trucks, it is equipped with a loading boom and the logs are 

 loaded on cars as they are skidded. The machine is raised off 

 the flat car by means of hydraulic jacks and then the corners are 

 blocked up. The log cars are run under the skidder when they 

 are brought to the woods and are pulled forward under the 

 loading boom by means of a "spotting" cable as required for 

 loading. The skidding cables are single lines which are carried 

 by a mule or horse to the log to which they are attached by a 



