148 FARM APPLIANCES. 



double block tackle, which will exert much greater pow- 

 er. When the weight is lifted, as out of a cellar-way, it 

 may be swung around over a wagon and lowered into it. 

 A convenient derrick for raising slaughtered animals, 

 for suspending heavy hogs in scalding, and dressing beeves, 

 and for sundry other purposes, can be cheaply and quick- 

 ly made thus : Take three scantlings two by six inches, 

 and fourteen feet long, or any other desired length and 

 strength. Bound poles will answer, by hewing flat on 

 two sides a small portion of the upper ends. Bore cor- 

 responding holes in the top of each, and insert a strong 

 iron bolt, with large head on one end, and large nut and 

 screw on the other. Let the bolt fit loosely, to allow a 

 little play. These pieces can fold together for storage, 

 and be raised to any desired height short of perpendicu- 

 lar. Bore a series of small holes along the upper sides 

 of two poles, for movable iron pins, or larger ones for 

 wooden pins. These may be fastened in, or better, have 

 two loose pins for moving to higher or lower holes. By 

 placing the feet of these two poles against firmly driven 

 stakes, and drawing the third and rear pole inward, the 

 center will be elevated with considerable force, the power 

 required decreasing as the timbers approach a perpendic- 

 ular, when a beef carcass, for instance, is nearly lifted 

 from the ground, and hangs more heavily. If desired or 

 necessary, horse power can be applied by using a rope 

 with a clevis or otherwise, attaching it to a double-tree 

 or to a whiffletree. A single horse will be sufficient for 

 raising a large carcass by means of this tripod derrick. 



SLINGS FOR HOISTING HEAVY OBJECTS. 



"When one has bags to hoist by a block, or simply by a 

 fall, from the barn floor to the loft, rope or chain slings 

 are almost essential. The simplest sling to operate is 



