Improvements in or relating to Loose Reed Looms.
Year: 1896

page_text: Date of Application, 15th Aug., 1896
Complete Specification Left, 17th May, 1897-Accepted, 25th June, 1897
Improvements in or relating to Loose Reed Looms.
I, WILLIAM BIRTWISTLE of 14 Doughty Street, Colne, in the County of
Lancaster, Loom Tackler, do hereby declare the nature of my said invention to be
as follows:-
My improvements refer mainly to an invention for which I obtained Letters
Patent, No. 13844 on the 17th day of August 1891, and consists first in forming
the block against which the finger or arm on the thrash rod strikes, when the reed
is out of its place, with a projection or extension below the curved face, and with
a space or slot between, into which the said finger or arm, when in its normal
position, will take. By so providing an extension, or lower abutting face, for the
block, the working loose of the finger or arm on the thrash rod, (so preventing it
from operating in the proper manner), will be immediately detected by the finger
striking the aforesaid extension, and so causing the loom to be stopped and enabling
the attendant to set the finger in its proper position.
Secondly, my improvements consist in attaching the rod or bar, which carries the
aforesaid block, to the fork lever of the loom, instead of pivoting it on a stud on
the loose frame, and thereby ensuring of its more positive action, by giving it
a parallel instead of a radial movement. In order to steady the lower end of the
aforesaid bar or lever, I provide it with a cranked rod, screwing through the free
and lower end of the bar, and which is so adjusted as to lie against the usual fork
handle, and so help to receive the thrust of the thrash rod finger.
The further features of my improvements consist in providing the finger (or
fingers) which strike the aforesaid block, with two or more flats or faces and holes
for two or more set screws, or of forming the thrash rod ends square, so as to help
to prevent the fingers getting loose and inoperative. Also of forming the several
parts of my improved apparatus as herein, or in my former specification, set forth,
with slots or grooves so that they may be adjusted to the varying requirements of
looms.
In lieu of mounting my curved block upon the special bar aforesaid I may
mount it direct on to the fork handle with the knocking-off finger altered
accordingly.
Dated this 14th day of August 1896
I, WILLIAM BIRTWISTLE of 14 Doughty Street, Colne, in the County of
Lancaster Loom Tackler, do hereby declare the nature of my said invention and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
My improvements refer mainly to an invention for which I obtained Letters
دم

page_text: Patent No. 13844 on the 17th day of August 1891, and consist first in forming the
block against which the finger or arm on the thrash rod strikes when the reed is out
of its place, with a projection or extension below the curved face, and with a space
or slot between into which the said finger or arm when in its normal position will
take. By so providing an extension or lower abutting face for the block the
working loose of the finger or arm on the thrash rod (preventing it from operating
in the proper manner) will be immediately detected by the finger striking the
aforesaid extension and causing the loom to be stopped and enabling the attendant
to set the finger in its proper position.
Secondly, my improvements consist in attaching the rod or bar which carries the
aforesaid block to the fork lever of the loom instead of pivoting it on a guide on
the lorse frame and thereby ensuring of its more positive action by giving it
a parallel, instead of a radial, movement.
In order to steady the lower end of the aforesaid bar or lever, I provide it with
a cranked rod, screwing through the free and lower end of the bar, and which is so
adjusted as to lie against the usual fork handle and so help to receive the thrust of
the thrash rod finger.
The further features of my improvements consist in providing the finger (or
fingers) which strike the aforesaid block, with two or more flats or faces and holes
for two or more set screws, or of forming the thrash rod ends square, so as to help
to prevent the fingers getting loose and inoperative. Also of forming the several
parts of
my improved apparatus as herein, or in my former specification set forth,
with slots or grooves so that they may be adjusted to the varying requirements of
looms.
In lieu of mounting my curved block upon the special bar aforesaid, I may
mount it direct on to the fork handle with the knocking-off finger altered
accordingly.
And in order that my said invention may be more readily understood and
carried into practical effect, I have hereunto annexed a sheet of drawings and
will now proceed to describe the same with the figures and letters of reference
marked thereon.
Fig. 1. illustrates the improved block (A) mounted upon a bar (B) working on
a fulcrum (C) in bracket (D) on the loom side or frame.
Fig. 2 illustrates the improved block (A) mounted upon a bar (E) positively
connected to fork lever (F) and carrying at its lower extremity a cranked rod or
extension (G) designed to bear against the fork handle (H).
Fig. 3 illustrates a front view of the block separately.
In ordinary or regular working the finger (1) on the thrash rod (J) beats up into
the space (A) of the block (A). When however, the reed opens and raises the
finger (I) it (the finger) strikes against the curved part (A2) runs up such curve a;
shewn in dotted lines, and forcing back the bar (B) causes the latter to move the
fork lever (F) and so stop the loom.
In the event of the finger (1) getting loose on the shaft or rod (J) and falling
away from its proper position, it strikes against the lower face (A³) of the block,
and in like manner to its effect on the upper face (A2) stops the loom. This lower
abuting face may, if desired be fluted.
To further improve the apparatus I provide the thrash rod finger with two
facits, and set screws for the more perfect fastening thereof on the thrash rol, or
I make the same square in cross-section.
The bar (B) shewn in Fig. 1 is made of three parts (1), (2), (3), to allow of the
apparatus being applied to various makes of loons. To adjust the block (A) in
proper relation to the finger (1) the nut (K) is slackened, and the part (2) moved
backwards or forwards in part (1). Part (3) may also be adjusted by sla kening
nut (L), and moving it to or fro on the end of the part (2).
To prevent the bar (B) falling backwards I provide a fixed finger (M) mounted
on fulcrum or fixed stud (C) and serving to sustain the bar (B) in its vertical
position.

page_text: The movement of the bar in Fig. 1 is radial, and the movement of the bar
in Fig. 2 is parallel or horizontal. The bar in Fig. 2 is double acting in that it
operates on the fork lever, and the fork handle. The cranked rod (G) is adjustable
and the connection with the lever (F) is also adjustable. The block (A) in all
cases is adjustable up and down the bar, and is provided with claws (A') to locate
it in its proper position.
Having now particularly described and ascertained the nature of my said.
invention and in what manner the same is to be performed I declare that
what I claim is :
1st. In loose reed looms the combination of parts herein described for stopping
the loom when the reed opens, or when the thrash rod finger falls below its
proper working position, consisting essentially of the block (A) and adjustable
bar (B) mounted and operating as set forth and illustrated on the accompanying
drawing.
2nd. In loose reed looms the combination of parts herein described for stopping
the loom when the reed opens, or when the thrash rod finger falls below its
proper working position, consisting essentially of the block (A) bar and cranked
rod or extension, mounted and operating as set forth and illustrated on the
accompanying drawing.
3rd. The several improvements in apparatus for stopping loose reed looms,.
separate or combined with the apparatus herein or in my former specification.
described as set forth.
Dated the 15th day of May 1897
WILLIAM BIRTWISTLE,
By John G. Wilson & Co.,
Agents.