225 



1^ In., and showing only 1 In. of it. The heads of the 

 axle, to which the bushes of the wheels are fitted, are 12 In. 

 long ; and the sand-washers are 1 In. broad each. To the 

 axle-bed are fixed two strong iron hooks 3 In. long, to 

 which the horse or horses arc attached, for drawing the 

 machine. 



The two side-stays are 4 F. 2 In. long, 3 In. square, and 

 strongly bolted to the pole. The upper stay rests on the 

 first stage, and is 4 F. 4 In. long, 3 In. broad, 3^ In. thick, 

 and tapering to 2^ In. at the pole, to which it is in like 

 manner bolted. 



The first stage rises in the centre 2^ In., and at the sides 

 6 In. above the axle-bed, and is bolted to it. The stage is 

 4 F. 8 In. long, 5 In. broad, and 3^ In. thick. The second 

 stage rises 4^ In. above the first, and is bolted to the latter. 

 It is 4 F. 8 In. long, 9 In. broad, and 2^ In. thick. The 

 third stage rises 4^ In. above the second, and is in the same 

 way bolted to it. It is 3 F. 6 In. long, 9 In. broad, and 2 

 In. thick. The third stage is movable at pleasure, and the 

 machine is used either with or without it, according to the 

 magnitude of the subjects to be removed. On the stage, 

 which is uppermost, there is always a strong bolstering of 

 double mat, filled with hay or straw, 6 In. thick, so that the 

 bark of the stem may not be injured by the pressure. 



The blocks between the two uppermost stages are 9 In. 

 long, 3 In. broad, and 4^ In. thick, that is, deep. The end, 

 of the upper stay, by resting on the first stage, shows itself 

 Uke a block, in the end view of the machine (Fig. 3.) ; and 

 the end of the pole presents a similar appearance, when 

 seen in the same manner, as it rests upon the axle-bed. — 

 Wherever it is possible, the bolts used for all of the above 

 purposes, are shown in the diagram. 



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