THE planter's guide. 



199 



MACHINE OF THE INTERMEDIATE SIZE. 



The pole of this machine is 131 feet long, including 

 the iron ring at the point, 4^ inches broad, and 5 inches 

 thick, tapering to 3 inches at top. This ring 'is for 

 receiving the pole-rope, and is 4 inches in diameter. At 

 the top there is a bend 3 inches off the straight, in order 

 to prevent any chafing of the bark by the ring. Under 

 the point of the pole close to the ring there is a small 

 iron block, 3^ inches square. It is rounded at the edges, 

 and well steeled, for defending the point of the pole 

 when trailing along the ground, and so formed as to 

 withstand the friction, and cause little or no injury to 

 the surface. There is also on one side of the pole a plate 

 of iron, extending from within 18 inches of the axle 

 nearly to the top, for the purpose of strengthening the 

 pole. It is 2 inches broad, and i inch thick, and is sunk 

 into the wood. This, in order to give the greater power, 

 should be in one piece. 



The iron axle is 4 feet 9 inches long between the 

 washers, and 2i inches square, with a curve in the centre 

 of 2 inches, for the sake of greater strength. The wooden 

 cover or axle-bed is 4 feet 8 inches long, and 5 inches 

 square, covering the iron li inch, and showing only 1 

 inch of it. The heads of the axle, to which the bushes of 

 the wheels are fitted, are 12 inches long ; and the sand- 

 washers are 1 inch broad each. To the axle-bed are 

 fixed two strong iron hooks 3 inches long, to which the 

 horse or horses are attached, for drawing the machine. 



The two side-stays are 4 feet 2 inches long, 3 inches 

 square, and strongly bolted to the pole. The upper stay 

 rests on the first stage, and is 4 feet 4 inches long, 3 



