Improvements in Mechanism for Operating Shuttle Guards of Looms for Weaving.
Year: 1891

page_text: Date of Application, 7th May, 1891
Complete Specification Left, 6th Feb., 1892-Accepted, 7th May, 1892
PROVISIONAL SPECIFICATION.
Improvements in Mechanism for Operating Shuttle Guards of Looms
for Weaving.
We EPHRAIM HINDLE and GEORGE HINDLE, Manufacturers and WILLIAM
ISHERWOOD, Manager all of Bastfield Mills, Blackburn in the County of Lancaster,
do hereby declare the nature of this invention to be as follows:-
This invention relates to further improvements in apparatus for
afore-
purpose
said for which Letters Patent No. 10,006 year 1890 were granted to the present
applicants.
According to this our present invention we employ a guard hinged to the hand
rail or slay cap and by lever or link and pendant rod connect with a lever mounted
on a stud below the tappet shaft. On the latter shaft we use a double beaked
tappet a beak of which at every pick acts on the lever referred to aud puts on the
guard and by the time the shuttle has crossed the race the beak of the tappet will
have passed clear of the lever whereon a counterbalanced lever or by a weight the
lever will resume its position and the guard will be taken off ie. moved under the
slay cap-close to the reed, the other beak of the tappet will again depress
the tappet end of the lever and put on the guard so that at every pick the guard is
put on and taken off it being merely necessary to overcome the gravitation of the
counterbalance lever to put back the guard so that the
can at all times
obtain free access to the warp ends for piecing up or otherwise-and as the
guard when on is maintained in such position only, as explained through the force
of gravity danger of injury through trapping of fingers between the guard and the
temple roller is obviated.
66 weaver
It will be obvious the operating tappet might be placed on the crank shaft of
the loom in which case only one beak would be required and also that the raising
or putting on the guard could be effected by a projecting finger of the guard coming
in contact with a fixed point or incline placed near the breast beam or by other
convenient going part of the loom so long as it is provided that the guard shall
be raised or put on for the pick and taken off by counter weight at the beat up.
Dated this 6th day of May 1891.
WALTER BRIERLEY,
Central Chambers, Halifax, Agent for the Applicants.
WALTER BRIERLEY,
Central Chambers, Halifax, Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Mechanism for Operating Shuttle Guards of Looms
for Weaving.
We EPHRAIM HINDLE and George HINDLE, Manufacturers and WILLIAM
ISHERWOOD, Manager all of Bastfield Mills Blackburn in the County of Lancaster,
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 further improvements in apparatus for purpose afore-
said for which Letters Patent No. 10,006 year 1890 were granted to the present
applicants.
According to this our present invention we employ a guard hinged to the hand
rail or slay cap and by lever or link and pendant rod connect same with a heavy
ended lever mounted on a stud below the tappet shaft. On the latter shaft we use a

page_text: double beaked tappet a beak of which at every pick acts on the lever referred to
and takes off the guard by folding it close to the slay cap and soon as the beak of the
tappet has passed clear of the lever the heaviest end of the lever will cause the
necessary movement and the guard is raised i.e. assumes its other position "on";
the other beak of the tappet will again depress the tappet end of the lever and
operate the guard by folding it close to the slay cap, so that at every pick the
guard is put on, and taken off it being merely necessary to overcome the gravitation
of the counterbalance lever to put "off" the guard so that the " weaver can at
all times obtain free access to the warp ends for piecing up, or other purpose, and
as the guard when “ on is maintained in such position only, as explained, through
the force of gravity, danger of injury through trapping of fingers between the
guard, and the temple roller is obviated.
"
It will be obvious the operating tappet might be placed on the crank shaft of the
loom in which case only one beak would be required, so long as it is provided that
the guard shall be raised, or put "on" by gravitation for the pick, and taken "off"
by the beak of the tappet at the beat up.
Such being the nature and object of our said invention the following is a com-
plete description of same, reference being had to the accompanying drawings in
which
Fig. 1. is a front elevation of part of a loom, and of our improved mechanism for
operating the shuttle guard.
Fig. 2. is an end, or side view of our improved mechanism for purpose aforesaid
shewing the guard on.
66
"
Fig. 2 is an end view of shuttle guard "off" and folded close to the slay cap.
Fig. 3. is a plan view on line A. B of Fig. 2.
Fig. 4 is a plan view of the double beaked tappet.
According to this our said invention we employ a guard i consisting of a rod or
strip of metal hinged at its ends to the hand rail, or slay cap 2 and one end of such
guard 1 is bent at 3 and by the short lever or link 3' attached to the pendant rod 4
the lower end of which is attached to the heavy end of the lever 5 free to move on
its fulcrum stud 6 fixed by the bracket 7 to the end frame 8 of the loom. The end
of the lever 5 extends to, and under the tappet shaft 9 and on the latter we place a
double beaked tappet 10, a beak of which at every "beat up" of the weft acts on
the end of the lever 5, and depresses it, the opposite and heavy end being thereby
raised, the guard 1 is by the rod 4 and cranked part and link 3, 3' moved or folded
downwards close to and against the slay cap 2, and the guard is "off" (see Fig. 2*)
this taking place only at such time as the shuttle is "boxed," and the "beat up
being made or when the loom is stopped.
"
19
As soon as a beak of the tappet 10 is clear of the lever 5 the heavy end 11 of
such, will by gravitation fall until it rests on the curved end 12 of the lever 13 free
to move on its fulcrum stud 14 fixed by bracket 15 to the end frame 8 of the loom,
and as the end 11 of the lever 5 falls it draws down the pendant rod 4 which by the
link 3 and cranked part 3 moves the guard 1 on its hinges until it assumes the
position shewn by Fig. 2 when the guard is "on" and the shuttle cannot fly out
from the race 15. The lever 13 has a counterbalance weight 17 fixed on one end
of it, and through the weight 17 is formed a hole 18 and through this hole 18 is
passed the rod 19 the upper end of which is connected to the short lever 20 (see
Fig. 1.) with inclined lower edge 21 resting on the support 22 of the stop handle 23
and the lower end of the rod 18 has a nut or head 24 formed on it to support the
weighted end of the lever 13.
When the loom is stopped or "knocked off" by the handle 23 being moved the
support 22 is moved to the narrower part of the inclined lever 20 and the rod 19
allows the weighted end 17 of the lever 13 to fall and consequently the end 12 will
be raised and acting on the lever 5 the end 11 of the latter is also raised and the
guard is moved "off" as shewn by Fig. 2ª simultaneously with the stopping of the
loom, and independent of the tappet 10.
When the loom is restarted a reverse action of the parts takes place and the

page_text: weighted end 17 of the lever 13 being raised and the end 12 lowered, the end 11 of
the lever 5 will by gravitation fall and the guard will be moved "on" (see Fig. 2)
or in working position until such time as the lever 5 is operated upon by the
tappet 10. 10, the lever 13 and its connections being merely for the purpose of
operating the guard when the loom is stopped or knocked off."
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same has to be performed we declare that what we
claim is :-
The tappet 10 (double, or single beaked as described) together with the lever 5
weighted lever 13, rod 19, parts 20, 22 combined for purpose herein set forth and
substantially as illustrated by drawings annexed hereto.
1000
EPHRAIM HINDLE,
GEORGE HINDLE,
WILLIAM ISHERWOOD,
By their Agent, Walter Brierley,
Bank Chambers, Waterhouse Street, Halifax.