26 



LAND TRANSPORTATION WITHOUT VEHICLES 



Four-line skidder in operation. Clyde Iron Works, Duluth, Minn. 



There are two engines, to the right and to the 

 two stretcher drums, containing 3,000 feet of ' ^-inch st 

 rehaul at the time of setting up. 

 The stretcher cables are pulled 

 out by hand over three or four 

 sheaves, placed on the corners 

 of the squares to be logged. 



In front of the stretcher 

 drums are the left hand and 

 the right hand "skidder drums" 

 each carrying 1 ,000 feet of Vs - 

 inch steel wire cable. These 

 cables are run over sheaves 

 (blocks) at the tip of the beam. 



At the front end of the 

 platform there are found the 

 right hand and the left hand 

 "rehaul drum." These drums 

 carry each 3,000 feet of '., -inch 

 rehaul cables. The end of the 

 rehaul cable is attached to the 

 end of the skidder cable, making 

 a solid circuit over the sheaves. 

 The rehaul is meant to carry 

 the skidder cable back to the ciyde skidder en route 

 hook tenders. J. L. Roper Lumber Co.'s 



left of an upright boiler. Between the engines are 

 retcher cable, which is merely used to stretch out the 



There may be found, also, 

 an additional set of drums, the 

 "log deckers," with a short ''/s- 

 inch cable. The purpose of the 

 decker is the adjustment of skid- 

 ded logs on proper skidways 

 along the railroad track, so as 

 to facilitate loading. 



Finally, a series of "guy 

 ropes" are strung out from 

 stumps near by, over spring- 

 supported blocks at the tip of 

 the beam towards drums to the 

 right and the left of the plat- 

 form. By this means the tip of 

 the beam can be fastened and 

 held through steam pressure, 

 with the result that the shocks 

 to the beam are well absorbed. 

 The skidders require a 

 heavy rail — forty pounds or 

 more — and strong ties. 

 ^.i3i So-called combined skid- 



to a new location on ders and loaders are worked 

 holdings, N. Carolina. to advantage in small jobs. 



