360 Mr. Treadwell’s Description of a Machine, 
ings, is in the horizontal plane of the centre of the shaft ff; but 
so far from that shaft to the right, as seen in figs. 1 and 3, that the 
projections of the star-wheel 4a are just capable of reaching it, 
and throwing it upwards whenever the star-wheel is turned 
round for the purpose. A stop 28, of iron, is screwed upon the 
top of the lever 6a, and a slight spring 3d tends to keep the top 
of the bob against the stop 2b. A pall or click 40, having its 
lower end connected by a pin with the frame ee, passes upwards 
through a hole or ‘slot in the slide-bar 0 0, by the side of the 
lever 6a. The click 4b can move on the pin which unites it 
with the frame e e, with which it forms a hinge-joint, so that its 
top may describe an arc in the direction of the length of the slide- 
bar. A spring is fixed to the frame e e (seen in dotted lines in 
fig. 3), which acts against the click 4b, and tends to press it 
against the lever 6a; so that whenever the end of that lever (at 
the left hand in figs. 1 and 3) is raised above the top of the click, 
then the click slips under a piece of steel which is fixed upon the 
corner of the lever, where the click meets it, and holds it up. But, 
as will be hereafter seen, it is required that the click should not 
remain under the lever, except when the clutch-box /’ is carried 
by the slide-bar 00, so near the star-wheel, that the catch m’ is 
engaged against one of the plates 4a; therefore, to remove the 
click 4b from the lever 6a, except in the case before stated, a 
piece of iron, constituting a stop, is screwed over one side of the 
hole or slot in the slide-bar, so that whenever the slide-bar is 
moved so far to the right (as seen in fig. 5) as to disengage the 
catch m from the star-wheel, then the stop, above described, 
shall press upon the side of the click 48, opposite to that against 
which the spring rests, and, bending the spring, disengage the 
click from under the lever. 56 is a weight upon the left arm of 
the lever 6a, tending to depress the arm to which it is attached. 
