Improvements in Loom Shuttle Guards.
Year: 1892

page_text: Date of Application, 18th May, 1892
Complete Specification Left, 15th Feb., 1893-Accepted, 18th Mar., 1893
PROVISIONAL SPECIFICATION.
Improvements in Loom Shuttle Guards.
We, ALFRED WADDINGTON, of Buttershaw Mills, Buttershaw near Bradford
in the County of York, Engineer and JOSEPH BOTTOMLEY of the same place
Manufacturer, do hereby declare the nature of this invention to be as follows:-
The object of this invention is to so construct shuttle guards that, the same may
be secured to the hand rail of the lathe of the loom in such a manner that,
whenever the loom is in motion the guard is automatically placed in such a position
that, should the shuttle by any means be diverted from its usual straight course
across the warp, it is prevented leaving the loom; thus securing the personal safety
of the attendant and other persons near the loom; also to so arrange the apparatus
that the reed space, "shed
of the warp, course of the shuttle and cloth are
exposed to such an extent that the weaver can examine the operations during the
process of weaving, and when the loom is stopped, for the guard to be capable of
being moved into such position, that the weaver has free access to the cloth and
warp threads.
We accomplish our object in the following manner :-To the hand rail of the
lathe of the loom, we secure a number of brackets which support a shaft having a
number of arms thereon, through which pass one or more wires or other light bars
by which a guard is formed, and when the loom is in motion the guard is over, and
in front of the path traversed by the shuttle.
On the before mentioned shaft is secured a lever having by preference a small
pulley mounted thereon near to one end of same and in contact with this pulley or
the end of the lever as the case may be, rests a spring for holding the guard in its
required position.
The lever and spring are so arranged that when the loom is put in motion, they
allow the guard during the beat up of the weft to be automatically thrown
outwards into such position that, the entire track of the shuttle from one shuttle
box to the other is protected so that if the shuttle be diverted in its course, it
cannot leave the loom, and also when bar or roller temples are employed the said
spring and lever allow the guard to yield to the extent required during the beat up
of the weft.
In lieu of the lever and spring, one half of a clutch box may be secured to one
of the brackets, the other half being attached to an arm secured to the before
mentioned shaft the two portions of the clutch box being kept in gear and the
guard in a protecting position, by aid of a spiral spring during the time the loom is
in motion, and on placing the guard back against the hand rail, and reed during
the stoppage of the loom, it is there retained by the spiral spring.
On stopping the loom or when it is at rest, by the attendant applying pressure to
one of the arms, the shaft is caused to turn in its bearings and thereby move the
guard back against the hand rail and reed clear of the cloth and warp threads, thus
giving access to and an uninterrupted view of the same, and when the loom is put
in motion, the guard is automatically caused to move into the position for
preventing the shuttle leaving the path, by reason of the inclination of the arms
and guard when moved back against the hand rail, and by the sudden changing in
the direction of the motion of the lathe at the beat up of the weft, the ends of the
arms and wires are thrown outwards away from the handrail and reed, thus
turning the shaft in its bearings until the spring presses the lever against a support,
or the claws of the clutch box arrive opposite the respective recesses when by the
action of the spiral spring, they engage and thus secure the guard in its required
position.
The shuttle guard may be actuated and placed in the position for protecting the

page_text: shuttle or back against the hand rail by the operation of the stoprod through a
series of levers and rods. When the stop rod is moved into the position for
starting the loom the rods are operated by means of a cam which causes the guard
to be moved into the position for protecting the shuttle; and when the loom is
stopped the said cam operates the rods and levers so that the guard is clear of the 5
warp threads and shuttle race.
DL
1000
JOHN WAUGH,
Agent.
COMPLETE SPECIFICATION.
Improvements in Loom Shuttle Guards.
We, ALFRED WADDINGTON, of Buttershaw Mills, Buttershaw, near Bradford,
n the County of York, Engineer, and JOSEPH BOTTOMLEY, of the same place,
Manufacturer 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 this invention is to so construct shuttle guards that the same may
be secured to the hand rail of the lathe of the loom, in such a manner that, the
guard is automatically placed in such a position that, should the shuttle by any
means be diverted from its usual straight course across the warp, it is prevented
leaving the loom, thereby securing the personal safety of the attendant and others
near the loom, and to so arrange the apparatus that the reed space, "shed" of the
warp course of the shuttle and cloth are exposed to such an extent that, the weaver
can examine the operations during the process of weaving, and when the loom is
stopped for the guard to be capable of being easily moved into such position that
the weaver has free access to the cloth and warp threads.
In the accompanying drawings,
Fig. 1 represents a detached detail view of a portion of a shuttle guard
constructed according to our invention.
Fig. 2 is an end view of the same showing the guard moved back against the
hand rail of the lathe.
Fig. 3 is an end view of the guard in the position for guarding the shuttle.
Fig. 4 is a plan of the same.
Fig. 5 on Sheet 2 represents the elevation of a lathe of a loom constructed and
operated in the ordinary manner and to which is attached our improved shuttle
guard, and
Fig. 6 is a plan of the same.
Similar letters represent similar parts in all the figures where they appear.
The lathe A of the loom, hand rail B and reed C are constructed and
reciprocated in the manner as hitherto.
To the hand rail B are secured a number of brackets D, three being shown in
the present instance, and on the brackets is mounted a shaft F, to which are
secured the arms G and H, through which pass or are otherwise attached one or
more light bars W, two are shown in the drawings, both of which extend the full
width of the reed C, thereby forming a guard between the shuttle picking boxes J
above and in front of the shuttle path..
On one end of the shaft F is secured a lever P having by preference a small
pulley P mounted near the end of same, and on the centre bracket D is formed or
secured one half of a clutch box K, the other half K¹ of the box forming a part of
the arm H, and is kept engaged with that on the bracket by means of a spiral
spring S placed around the shaft F, one end of the spring being attached to the
adjustable collar L, and the other to the handrail B, the collar L before being
secured on the shaft F, is turned thereon some distance in a direction opposite to
the coiling of the spiral spring S, and then secured to the shaft F.

page_text: When the loom is fitted with what is known as bar or roller temples, that is,
with a temple extending across the cloth, and mounted near the fell of the cloth
for keeping the latter at its proper width, the bottom portion of the guard would
come in contact with the same if the guard was not relieved, and in order that the
same may automatically recede the distance required, the pulley P¹ is so placed as
to come against an adjustable bar R fixed in any convenient manner to the loom
by which the said pulley and arms of the guard are caused to move some distance
towards the reed C sufficient to clear the temple, and on the retreat of the lathe A.
the spiral spring S causes the arms of the guard to return to their normal position
before the next pick of the shuttle.
On stopping the loom, the arm H may be disengaged from the clutch box K by
the attendant pressing one of the arms G or H in the direction of the arrow and
backwards towards the reed C, thus turning the shaft F in its bearings and bringing
the bottom portion of the arms and guard bars W. back against the hand rail B.
somewhat as shown by Fig. 2, thereby giving free access to and an uninterrupted
view of the cloth, reed C and warp threads passing through same.
On starting the loom, the guard is positively and automatically brought back to
the position for protecting the shuttle, by the arm P. secured on shaft F. coming
in contact with the inclined surface of fixed projection R' by which the shaft F
and arms attached thereto are caused to slide such a distance in the direction of
arrow in Fig. 1. that the claw K' is disengaged with the deep recess K³ in fixed
clutch box K, the projection R' holding the shaft F in the position that the claw K
is kept clear of the deep recess K³ during a portion of the retreat of the lathe B.
during which time, the partly uncoiled spiral spring S turns the shaft F in its
bearings in the direction that the claw K engages with the recess K where it will
continue and retain the guard in the position for protecting the shuttle, so long as
the loom is working and the guard not pressed back to the position shown by
Fig. 2.
The guarding of the shuttle may be accomplished by a modified arrangement
shown by Figs. 7 and 8, representing a detached detailed front view of the end
levers used in our modified arrangement and an end view of the same. To the
lever or arm P. secured on end of shaft F. is an arm P provided with a pulley at
end of same, upon which rests a spring S₁ for holding the guard in its required.
position and allowing it to yield during the beat up of the weft.
According to this arrangement, the before mentioned clutch box and spiral
spring are dispensed with, the arms supporting the guard bars W being all similar
to those indicated by the letter G. The spring is secured to the hand rail B.
and applies pressure on the pulley or arm P2 to such an extent, that the arms G
and guard wires or bars W. are allowed to retain their required position during the
picking of the shuttle, and by pulley P at end of arm or lever P. coming in contact
with the adjustable bar R as before described, the guard is caused to retreat
towards the reed during the beat up of the weft.
On stopping the loom, the guard may be moved back to the position shown by
Fig. 2. and on starting the loom again, by the spring S being applied in the
manner described, the guard bars and arms G. are allowed to be automatically thrown
outwards, which is accomplished by the sudden changing in the direction of the
motion of the lathe A. at the time the reed C is striking the cloth at the beat up of
the weft.
Our invention may also be accomplished by the use of a modified clutch box,
such as is shown by detached detailed view Fig. 9. Fig. 10 being a sectional end
view showing guard arms G. back against the hand rail B.
To the hand rail B. are secured the brackets D. supporting shaft F. arms G
and bars W. as before described, the said bars engaging with an arm H in the
centre of guard, on which is formed or secured one half of a clutch box K, the
other half forming part of a bracket D'.
The clutch box is kept in gear by means of the compression of a spiral spring S.
placed around the shaft F. one end of the spring being attached to the adjustable

page_text: collar L. and the other end to the bracket D¹ or hand rail B, the collar L being
secured to the shaft F. and the spring partly uncoiled as before described.
On stopping the loom, the clutch box may be disengaged by the attendant
pressing one of the arms G or the arm H in the direction of the arrow, and back-
wards towards the reed C, thus turning the shaft F in its bearings and bringing the
arms and guard bars to the position shown by end view Fig. 10, thus giving free
access to the reed and warp threads.
On putting the loom in motion, the guard is automatically moved to the position
shown by end view Fig. 3 by the sudden changing in the direction of the motion
of the lathe at the beat up of the weft, causing the guard to be thrown outwards
from the hand rail B, and reed C, thereby turning the shaft F, and to some extent
uncoiling the spiral spring S. which when the claws of the clutch K arrive opposite
the respective recesses contracts, thereby securing the guard in its required position
for protecting the course of the shuttle and preventing its escape, should it by any
means be diverted from its straight course.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is
1. In a shuttle guard the combination of the arms P. G and H with the shaft F.
bars W. spring S and clutch box arranged substantially in the manner described
and shown.
2. In combination with a shuttle guard constructed in the manner described, of
a bar R and inclined projection R' arranged substantially in the manner shown and
for the purpose as hereinbefore set forth.
3. The arms P and P³ combined with the shaft F. arms G. guide bars W. and
spring S arranged substantially in the manner shown and for the purpose as herein-
before set forth.
Dad this 0th day of Wohnworn 1902
JOHN WAUGH,
Agent.