A New or Improved Shuttle Guard for Weaving Looms.
Year: 1891

page_text: Date of Application, 25th Feb., 1891
Complete Specification Left, 24th Nov., 1891-Accepted, 24th Dec., 1891
PROVISIONAL SPECIFICATION.
A New or Improved Shuttle Guard for Weaving Looms.
We, RICHARD HENRY HOPKINSON, of Mount Pleasant, Buttershaw in the
County of York, Overlooker, and Joux WILLIAM BROOK, of Temperance
Buildings, Wike, in the aforesaid County, Overlooker, do hereby declare the
nature of this invention to be as follows:-
This invention relates to a new or improved shuttle guard for guiding the
The object of the
shuttles of weaving looms and preventing them flying out.
invention is to provide an efficient guard of simple construction arranged to
automatically move out of the way when the loom is stopped and to be automatically
restored to position as soon as the loom is restarted.
For this purpose
employ a guard of section pivoted on arms or swing
brackets at each end mounted in any convenient position on the going part and
A fork or its
such guard is also supported by arms pivoted to the slay board.
equivalent is secured to an extension of one of the swing arms and in such a manner
that by vibrating said fork the motion is communicated to the arm and shuttle
guard and the latter is moved in and out of position.
A sliding tappet connected to the starting or knocking-off" lever is arranged
to engage said fork and when the loom is started move the shuttle guard into
position or when the loom is stopped move said guard out of the way.
Dated this 24th day of February 1891.
DRACUP & NOWELL,
Bradford, Agents.
COMPLETE SPECIFICATION.
A New or Improved Shuttle Guard for Weaving Looms.
We, RICHARD HENRY HOPKINSON, of Mount Pleasant, Buttershaw in the
County of York, Overlooker, and JOHN WILLIAM BROOK, of Temperance
Buildings, Wike, in the aforesaid County, Overlooker, 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 a new or improved shuttle guard for guiding the shuttles
of weaving looms and preventing them flying out. The object of the invention is
to provide an efficient guard of simple construction arranged to automatically move
out of the way when the loom is stopped and to be automatically restored to
position as soon as the loom is restarted.
For this purpose we employ a guard of ✓ section pivoted on arms or swing
brackets at each end mounted preferably on the hand or top rail of the going part
above the reed, and such guard is also connected to an arm pivoted to the slay
board. A fork or its equivalent is formed on an extension of this latter arm
arranged to engage a sliding tappet connected to the starting or knocking off lever
and when the loom is started move the shuttle guard (through the medium of the
arm connected thereto) into position or when the loom is stopped move said guard
out of the way.
To fully describe our invention reference is made to the accompanying sheet of
drawings forming a part of this Specification in which similar letters of reference
indicate corresponding parts in each of the figures.
Figure 1, represents a plan view of the going part of a loom with the shuttle

page_text: guard in the position it occupies when the loom is in operation a portion of the side
frames are also shown with the mechanism for moving the shuttle guard.
Figure 2 is also a plan view but the shuttle guard is represented close up to the
hand-rail or the position it is moved to when the loom is stopped.
Figure 3 is a front view of Figure 1, and Figure 4 is a side view of the same.
The guard A is formed of angle iron of L section and is secured by the links a, a
to the hand-rail B in the manner shown in Figure 4 so that the angle of the Lis
inverted and the two arms e, e of the respectively form a longitudinal guide for
both the top and front side of the shuttle. A slot C is formed at one end of the
guide to receive the bent end d of the arm D projecting from the vertical rod F
pivoted to the bracket G secured to the going part H. An arm g is secured to the
bottom of F so as to project in front of the going part and pass in between the
inclined tappet faces and formed on the short slide J each time the going part
is vibrated. The slide J is mounted in the guides or eyes K, K secured to the
side frame L of the loom and such slide is provided with two projections and sat
the outer end embracing the starting lever O which is shown in section in
Figures and 2.
*
When the starting lever O is moved to the position represented in Figure 1 to
start the loom it engages the projections of the slide and moves the slide to its
outward limit, this brings the nose of the incline i into position to engage the arm
as the going part moves towards it and said arm by sliding along in contact with
such incline is turned aside to the position shown, thus vibrating the arm D
engaging the slot G which moves the guide A on its links a, a outward into
position to guide the shuttle. When the loom is stopped the starting lever O
engages the other projection thus moving the slide inwards so that at the next
vibration of the going part the army engages the incline and declines such arm to
j
the position shown in Figure 2, and so vibrating the arm D in the reverse direction
moves the shuttle guard A close up to the hand-rail B.
7"
To prevent the parts being moved or displaced by the vibration of the loom a
spring. catch m fixed to an arm n (Figures 3 and 4) secured to the vertical
rod is provided. Such catch bears against a catch plate o mounted on
the going part and holds the parts in either of the positions represented in
Figures 1 and 2.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we would have it
understood that we do not consider there is any novelty in the method of mounting
the shuttle guard on the links a, a connected to the rail B and we do not claim
that nor do we limit ourselves to any particular method of mounting the shuttle
guard, but what we claim is:
1. The combination with a shuttle guard mounted in any convenient manner so
that it is capable of being moved into and out of position, of a sliding tappet or its
equivalent connected to and operated by the starting lever and a vibrating arm or
the like connected to the shuttle guard and adapted to be vibrated by said tappe.
in order to move said shuttle guard into and out of position, substantially as herein.
shown and described and illustrated in the accompanying drawings.
2. In a weaving loom, the combination with mechanism for moving the shuttle
guard into and out of position, of a shuttle guard of ☐ section mounted so that the
internal angle of the L faces the angle formed by the reed and the going part,
substantially as herein shown and described and illustrated in the accompanying
drawings.
Dated this 23rd day of November 1891.
DRACUP & NOWELL,
Bradford, Agents.