Improvements in or relating to Shuttle Stop Motions for Looms for Weaving Textile Fabrics.
Year: 1893

page_text: Date of Application, 4th Apr., 1893
Complete Specification Left, 4th Jan., 1894-Accepted, 10th Feb., 1894
NOYUNAL DE MULTICATION.
Improvements in or relating to Shuttle Stop Motions for Looms for
Weaving Textile Fabrics.
I, FREDERICK JAMES HIBBERD, of Orwell Villa, Clepington Road, Dundee,
in the County of Forfar, Scotland, Factory Manager, do hereby declare the nature
of this invention to be as follows:-
This invention relates to looms for weaving textile fabrics, its objects being to
abolish swells and fingers, to lift the protector tongues by a positive motion due to
the action of the shuttle in entering the box, keeping up such protector tongues
while it is there, and should such shuttle in crossing the race fly out, or otherwise
not reach the box in time, allow the protector tongues to fall and thus "strike off"
the loom.
In looms the protector tongues are generally lifted by the action of the shuttle on
the swell and finger, when in the act of entering the box. Considerable force is
required to do this, and therefore the pick has to be more powerful than otherwise
would be the case.
In carrying out my invention, I employ two bell cranks, one for each tongue, the
extremities of such bell cranks terminating in segments of circles to which chains
or their equivalent are attached, the object of such design being to offer a constant
resistance to the motion of the shuttle when actuating same.
The chain in connection with the one crank or lever, is attached to a buffer
which is made to slide upon the spindle by the shuttle, the chain on the other crank
or lever being fastened to the protector tongue. As long as the shuttle is out of
the box, the protector tongues are down and ready to strike off" the loom if
need be, but as soon as such shuttle enters the box it comes against the buffer on
the spindle, which is thus made to slide along, and so lifting such tongues by means
of the buffer and chain, bell crank and protector tongue chain, and keeping it up
until the shuttle has again left the box.
Deted this 1st day of Aumil 1002
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicant.
Improvements-in-or-relating_to_Shuttle Stop Motions for Looms for
Weaving Textile Fabrics.
I, FREDERICK JAMES HIBBERD, sometime of Orwell Villa, but now of
3 Rosslyn Villas, Clepington Road, Dundee, in the County of Forfar, Scotland,
Factory Manager, 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:-
This invention relates to looms for weaving textile fabrics, its objects being to
abolish swells and fingers, to lift the protector tongues by a positive motion due to
the action of the shuttle in entering the box, keeping up such protector tongues
while it is there, and should such shuttle in crossing the race fly out, or otherwise
not reach the box in time, allow the protector tongues to fall and thus "strike off"
the loom.

page_text: In looms the protector tongues are generally lifted by the action of the shuttle
on the swell and finger, when in the act of entering the box. Considerable force is
required to do this, and therefore the pick has to be more powerful than otherwise
would be the case.
The description of my improvements is assisted by a sheet of explanatory
drawings, hereunto appended and hereinafter referred to.
Figure 1. is a front elevation; Figure 2. a plan, with sword and reed removed
and showing the shuttle in the box and Figure 3. a cross-section at A. A.
(Figure 1.), with sword, reed and upper shell removed, showing a portion of the
loom lay and its appurtenances, as fitted with my improvements.
Figures 4. 5. and 6, respectively illustrate front, back and side views of the bell-
cranks 10. upon an enlarged scale.
In these drawings the same reference numerals are used to mark the same or like
parts wherever they are repeated.
In carrying out my invention, I employ two bell-cranks 10, one for each tongue 11.
the extremities of such bell-cranks terminating in segments of circles to which
chains 12. and 13. or their equivalent are attached, the object of such design being
to offer a constant resistance to the motion of the shuttle 14, when actuating same.
The chain 12. in connection with the one crank or lever, is attached to a buffer 15.
which is made to slide upon the spindle 16. by the shuttle, the chain 13. on the
other crank or lever being fastened to the protector tongue 11. As long as the
shuttle is out of the box, the protector tongues are down and ready to "strike off"
the loom if need be, but as soon as such shuttle enters the box it comes against the
buffer 15. on the spindle 16, which is thus made to slide along same, and so lifting
such tongues by means of the buffer 15. and chain 12, bell-crank and protector
tongue chain 13; in this manner keeping it up until the shuttle has again left the box.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what 1
claim is:
In looms for weaving textile fabrics :-
(1.) The mode of arresting and utilizing the momentum of the shuttle, as it
enters the box, in raising the protector tongues and the keeping of them raised
clear of the buffers, as long as such shuttle is there, substantially as hereinbefore
described.
(2.) The improved combination and arrangement of parts as hereinbefore described
and shown in the accompanying drawings, and for the purposes as set forth.
Dated this 3rd day of Januar 1901
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicant.