Improvements in Shuttle Guards for Looms for Weaving.
Year: 1894

page_text: Date of Application, 10th Feb., 1894
Complete Specification Left, 9th Nov., 1894-Accepted, 15th Dec., 1894
PROVISIONAL SPECIFICATION.
Improvements in Shuttle Guards for Looms for Weaving.
I, CHARLES BEDFORD, of 63, Alexandra Road, Shipley, in the County of
York, Machine Designer, do hereby declare the nature of this invention to be as
follows:-
My invention in looms has reference to the construction and arrangement of a
new form of shuttle guard for preventing shuttles from flying out of the loom.
In constructing a shuttle guard according to my invention, a suitable number of
brackets are secured to the hand rail of the loom, and attached to these brackets
are two triangular projections, the points of the triangles being opposed to each
other in a vertical direction. The arms which carry the shuttle guard are made
with a triangular form of slot resting and fitting upon the upper triangular stud so
that the shuttle guard together with the projecting arms are free to oscillate when
required upon the point of the triangular pivot. The arms which carry the shuttle
guard are provided with a lug which receives the lower end of a vertical bar or
rod the upper end being formed with an inverted triangular groove for fitting under
a triangular part which forms a pivot for the end of the rod to oscillate upon, an
open spiral spring being placed on the rod which presses between the lug and a
shoulder on the said rod to force the upper end in contact with the triangular
pivot. When the weaver wishes to get at the warp for piecing up or for other
purposes, she pushes the shuttle guard towards the reed and after the vertical rod
with its inverted groove gets beyond the central line of the double triangular
pivots, the said rod will sustain the shuttle guard in its elevated position so as to
permit the weaver to get at the parts required, but when the loom is set on, the
throw of the "going part" will cause the vertical rod to work on its triangular
centre and thus get into position for preventing a shuttle flying out.
A stop piece or lug is cast on the bracket connected to the hand rail or on the
bracket carrying the double triangular pivoted stud, which stop piece prevents the
shuttle guard from getting beyond its required position. By the employment of
triangular centres for the shuttle guard to oscillate upon, lubricant or other form
of oil is not required as is common with other shuttle guards at present in use, as it
is found when oil is used that it gets onto the pieces being woven consequently
they are damaged thereby.
Dated this 9th day of February 1894.
TASKER & CROSSLEY,
Halifax, Agents.
COMPLETE SPECIFICATION.
Improvements in Shuttle Guards for Looms for Weaving.
I, CHARLES BEDFORD, of 63, Alexandra Road, Shipley, in the County of
York, Machine Designer, 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 :-
My invention in looms has reference to the construction and arrangement of a
new form of shuttle guard for preventing shuttles from flying out of the loom.
In constructing a shuttle guard according to my invention, a suitable number of
brackets are secured to the hand rail of the loom, and attached to these brackets
D011

page_text: are two triangular projections, the points of the triangles being opposed to each
other in a vertical direction.
In order that my improvements may be better understood I will make reference
to the accompanying sheets of drawings illustrative thereof, wherein Fig. 1 is
sectional end elevation of my improved shuttle guard and Fig. 2 is front elevation
of same.
manner.
A is the hand rail of a loom, B the slay board, and C the reed in the ordinary
To the hand rail A I secure brackets D of which there may be several.
To the said brackets D there is attached a double triangular projection E having
two angular pivots P and P¹. The shuttle guard is shewu at and it extends full
width of the reed, such shuttle guard being secured to arms G having a slot H and
an inverted angular groove which fits and rests upon the upper angular pivot P of
the angular stud E so that the shuttle guard together with the arms G are free to
oscillate when required upon the upper angular pivot F. The lower end of the
arms which carry the shuttle guard, are provided with a lug I which receives the
lower end of a vertical rod J, the upper end of the said rod being formed with an
angular groove for fitting under the lower pivot P' of the angular stud E which
forms a pivot for the upper end of the rod to oscillate upon, an open spiral spring L
being placed on the said rod which presses between the lug I and the shoulder a on
the top of the said rod, such spring being employed to force the upper end of the
rod into contact with the pivot P of the angular stud E. When the weaver wishes
to get at the warp for piecing up or for other purposes, she pushes the shuttle
guard towards the reed and after the lag I with the lower end of the vertical rod .J
gets beyond the line passing through the angular pivots P and P, the said rod J
with its spring L will sustain the shuttle guard in its elevated position as shewn in
dotted lines so as to permit the weaver to get at the parts required, but when the
loom is set on, the throw of the "going-part" at its beat up against the cloth
woven will cause the vertical rod and arm G to work on their angular pivot centre
and thus get back into the normal position for preventing a shuttle flying out.
stop piece or lug M is cast on the bracket D, which stop piece prevents the shuttle
guard from getting beyond its required position.
A
A modification of my invention is illustrated on Sheet 2 where Figs. 3 and 4 are
sectional elevations shewing the shuttle guard in two positions.
In this modification I reverse some of the parts shewn in Figs. 1 and 2.
In this case the angular stud E with its pivots P and P is formed on the top of
the rocking arm G, and instead of the triangular opening H being formed in the
arin G the said triangular opening is formed in the bracket D as is also the
groove R which is vice versa to that already described but the action is the same,
and instead of the vertical rod J and spiral spring L occupying positions shown in
Fig. 1 they are above the arm G the angular groove at the foot of the said rod J
resting upon the angular pivot P on the top of the arm G. The pressure of the
spring L forces the angular groove of the rod J upon the angular pivot P and also
forces the pivot P into the groove R in the bracket D whereby the shuttle guard F
is kept in the positions as illustrated in the drawings.
Fig. 5 is front view of Fig. 3 with some of the parts in cross section shewing also
that the bracket D in Figs. 3 and 4 is made into two parts M and D. The part M
is fixed to the band rail and the part D is provided with a slot hole N and secured
to the part M with bolt or screw so that the guards may be raised or lowered to
suit the various depths of slays used in the loom.
Fig. 6 shews an arrangement which instead of employing a flat shuttle guard,
like the said guard may be composed of wire or bent rods of iron Fi which,
permits the weaver to see between the bars.
Fig. 7 is end view of Fig. 6.
Fig. 8 shews another modification of my improved shuttle guard; in this case
the angular stud E is placed horizontally and each point or angle forms a fulcrum'
as in the previous case.

page_text: I employ a flat steel spring N secured to the arm G carrying the shuttle guard F,
the upper end of the said arm G works on one angle P of the stud E.
The upper end of the spring N is connected loosely to one end of the rod S at T
the other end of the rod S has an angular groove U which is forced upon the
pivot P¹ by the flat spring N which also forces the upper end of the arm G upon'
the pivot P and thus holds it in the position shewn in Fig. 8, and when the weaver
pushes the arm in the direction of the hand rail until the point T where the
spring N is connected loosely to the bar S passes the line of the two pivots P
and P when the flat spring N commences to act and throws the arm in the
position shewn in dotted lines and it remains in that position until the weaver or
the throw of the "going part" puts the shuttle guard back into working position
again.
In Fig. 9 I have shewn another modification where one end of a flat spring N is
attached to the bracket D, the free end of the said spring acting on a triangular
stud projecting from the vertical piece P which in turn is supported on another
angular stud b on the top of the swinging arm G which is also resting upon the
angular pivot E all of which pivots form fulcrums for the parts to work upon, the
action in all cases being the same.
By the employment of angular pivot centres and grooves for the shuttle guard to
oscillate upon, lubricant or other form of oil is not required as is common with
other shuttle guards at present in use, as it is found when oil is used that it gets
onto the pieces being woven consequently they are damaged thereby.
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 I
believe to be new and claim is :-
Firstly. In a shuttle guard, the use of angular pivots, centres or fulcrums in
combination with angular grooves, for the purposes and in the manner herein shewn
and described.
Secondly. The methods of operating shuttle guards shewn and described in
Figs. 1, 2, 3, 4, 8 and 9.
Thirdly. The combination of the brackets M and D shewn in Figs. 3, 4 and 5 for
the purposes shewn and described.
Fourthly. In a shuttle guard, the use of wire or beut rods of iron F¹ as shewn in
Figs. 6 and 7 when used in combination with angular pivots such as P and P¹.
Dated this 8th day of November 1894.
"
TASKER & CROSSLEY,
Halifax, Patent Agents.