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ARRANGEMENTS FOR LOADING LOOS ON WAGGONS, SLEDS, AND CARS 



IV. Tackle block attached to a tree, the waggon stand- 

 ing between the tree and the log; a rope attached to an 

 outside wheel, passed beneath and returned over the log, 

 then passed through the tackle block, and the free end 

 pulled by animals. 



V. The skidway scheme. Trained horses running on 

 prepared track opposite the skidway. Two poles leading 

 from skidway to waggon; rope running from outer wheel 

 of waggon under and around the log and back over the 

 waggon to the horses. 



VI. A jack, consisting of a crank, a gear wheel, and 

 a toothed iron bar. 



VII. The logjammer, consisting of a mast supported by 

 braces and guyropes, and of a swinging arm holding a 

 tackle block over the vehicle, made fast to the mast top by — 

 a rope and to the mast body by a swivel and ring. A 

 cable or rope is passed through the tackle block. One 

 end of the rope grapples the log; the other end is pulled 

 by a team. 



(B) LOADING 0.\ RAILROAD CARS. Additional 

 methods :- 



I. A huge tripod and a differential hoist. 



II. A drum and wire cable rig (e. g., that of a donkey 

 engine), the loading cable running over a tackle block sus- 

 pended over the track. 



III. Portable cranes or derricks. 



IV. Steam log loaders. Where steam log loaders are 

 used, proper skidways can be dispensed with. It is unwise, 

 however, to leave the logs scattered along the railroad. 



Jammer for loading or unloading logs by horses. 



Team of horses loading cedar poles. 



Another type of jammer. 



