IMPROVEMENTS IN THE SHUTTLE BOXES OF LOOMS
Year: 1885

page_text: We NATHAN WOOD of 13 Turner Place, Great Horton, and WILLIAM HARRIS,
Smithy, Clayton Heights, near Bradford in the County of York, Weaving Over-
lookers, do hereby declare the nature of our invention for IMPROVEMENTS IN
THE SHUTTLE BOXES OF LOOMS, to be as follows:-
The object of our invention is to arrange the shuttle boxes of ordinary stop rod
looms in such a manner, that the shuttles will pass in and out of the boxes easier
than when arranged in the ordinary manner.
We accomplish our object in the following manner:-
-In place of the ordinary
swell projecting into the shuttle box, we hinge to the shuttle box plate an arm,
formed with a recess in which we mount a pulley that projects into the shuttle
race a sufficient distance, that it displaces the arm and raises the ordinary stop rod
when the shuttle enters the box.
By attaching a pulley to the arm as described, less power is required to drive the
shuttle in and out of the box than when a swell is used, by reason of the pulley
revolving which reduces the friction on the shuttle when moving in the box,
thereby reducing the strain on the picking motion.
WAUGH & CHAPMAN,
70, Chancery Lane, W.C.
Improvements in the Shuttle Boxes of Looms.
We NATHAN WOOD, of 13 Turner Place Great Horton and WILLIAM HARRIS,
Smithy Clayton Heights, both near Bradford in the County of York Weaving
Overlookers do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement:-
The object of our invention is to arrange the shuttle boxes of stop rod looms in
such a manner, that the shuttles will pass in and out of the boxes easier than when

page_text: arranged in the ordinary way: and consists in mounting to the shuttle box frame,
a pulley which projects into the shuttle race a certain distance, so that when the
shuttle enters the box, the friction is reduced by the pulley and the ordinary stop
rod actuated, by which the fingers are raised clear of the "frogs."
In the accompanying drawings, Fig. 1 represents the front elevation of such
portions of a shuttle box, as are required to explain one method of carrying out
our invention, Fig. 2 is a plan of the same. Fig. 3 is a detail of the arm in which
the friction pulley is mounted, and Fig. 4 is a plan shewing the pulley mounted in
the front plate of the shuttle box.
According to the arrangement shewn by Figs. 1, 2 and 3, we hinge to the back
plate A, of the shuttle box an arm B, formed with a recess, in which we mount a
pulley C, that projects into the shuttle box beyond the face of the back plate A.
On the shuttle entering the box and coming into contact with the pulley C, the
arm B is moved backwards on the hinged joint D, and the opposite end of the arm
at E, acting on the finger F, actuates the stop rod G, and raises the other fingers of
the stop rod clear of the "frogs," in the same manner as when the back plate is
fitted with an arm having an ordinary swell formed thereon.
By attaching a pulley to the arm B as described, it will be easily understood that
less power will be required to drive the shuttle in and out of the box, than when a
swell is used, by reason of the pulley revolving which reduces the friction on the
shuttle, and thereby reduces the strain on the picking straps and other portions of
the picking motion.
Our object may also be accomplished by placing a pulley C¹ in the front plate H,
of the shuttle box, the said pulley projecting into the shuttle race; but when this
method is adopted, the back shuttle plate is hinged with an arm B¹, on which is
formed an ordinary swell B2 for operating on the stop rod.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is
The arrangement of the shuttle boxes of stop rod looms with a revolving pulley
fitted to the arm B, or to the front plate of the shuttle box for the purpose herein-
before set forth.