354 Mr. Treadwell’s Description of a Machine, 
and the ends of the straps are fastened and form the bobbin-belt, 
as seen in the figures. A tin tunnel LZ is fixed between the 
forcing-plates GG, for the purpose of directing the roving or 
sliver of hemp .M into the hatchel-belt. This tunnel runs in 
the direction of the dotted line, between the forcing-plates, until 
it nearly meets the bobbin-belt. 
I have thus described that part of the drawing-frame, which 
holds or carries the hemp, and from which it is drawn to form a 
filament. I will next describe the apparatus by which it is drawn 
out. The roller-sill VV, of cast iron, is fixed to the wooden 
frame .7./, running across the top, as seen in fig. 4. There are 
fixed upon the top of the roller-sill, the four pillars OO PP. 
O O are similar to each other; and the size, shape, and place of 
them will be seen in the figs. 1, 2, and 4. PP, which are like- 
wise similar to each other, but different from O O, are not seen 
distinctly in those figures. I have therefore marked their shape 
in fig. 9,P, which is an elevation, as they would be seen on 
ig. 1, if they were not hidden by other parts. The levers Q Q 
are hung by pins forming fulcrums or axes in the pillars P P. 
These levers are connected together by the crooked iron bar R, 
so that one cannot rise or fall unless the other rises or falls with 
it. The steel rollers S'S, called the drawing-rollers, are made to 
run, one, the lower, in the pillars P P, and the other, the upper, 
in the levers Q Q. Fig. 9 shows the holes which form boxes for 
the gudgeons of the rollers. The drawing-rollers are coupled by 
the plates 7’ T' to the shafts U U, running in the pillars O O, and 
connected by the geer-wheels V V. The roller-sill has a pro- 
jection on one side, passing towards the hatchel-belt. A piece 
of cast iron W is fixed upon this projection, and upon W is 
fixed the gatherer X. This is made of plates of iron in nearly 
the form of an unequal four-sided pyramid, with its open base 
