DESCRIPTION AND SKETCHES OF LEVER APPLIANCE. 189 



XVI. Description and Sketches of Lever Appliance. By James 

 Rodger, Forester, Morton Hall Estate, Norwich. 



This implement is in regular use on this estate, but, to the best 

 of my belief, it is not in general use. Still, it has many qualities 

 to recommend it. It is very simple in construction ; it is com- 

 paratively inexpensive ; it can be moved about and manipulated by 

 four or five men ; it can be fixed and applied in places inaccessible 

 to horse or steam power; and, what is of most importance, it is 

 very powerful, being much more so than the best rope-and-pulley 

 tackle, and even approaching the traction-engine in this respect, 



For steadying or swinging round leaning trees during the process 

 of felling, for pulling down trees whose tops have fallen into the 

 crowns of neighbouring ones, for pulling up roots, for turning heavy 

 trees over, and such like work, it is simply invaluable, and, in my 

 opinion, it should be included in the equipment of every timber- 

 growing estate. 



The "Chain Lever," as it is locally termed, is made up of a 

 stout larch pole, 14 feet long, a bar of iron, 4 feet 6 inches by 

 3 inches by 1 inch, and a sufficient supply of suitable chains or 

 steel ropes, in lengths of from 10 to 20 feet. By clasps and wedges 

 the iron bar is fixed to the butt end of the pole in such a manner 

 that about two-thirds of its length project beyond the wood, and 

 along the centre of this projecting portion a row of § inch holes, 



about 6 inches apart, is made ; a stout coupling and pin is made 

 and fitted into the centre hole, while two strong chains, 2 feet 

 long, are fitted with a similar coupling and pin at one end and a 

 short pointed hook at the other; these chains are attached by their 

 couplings to holes in the bar, one at each side of the centre 

 coupling, but this may be better understood by looking at the 

 accompanying sketch (Fig. 1). 



VOL. XVI. part ii. o 



