Improvements in the Shedding, Change-box, and Picking Motions of Looms.
Year: 1895

page_text: Date of Application, 10th Jan., 1895
Complete Specification Left, 9th Oct., 1895-Accepted, 16th Nov., 1895
PROVISIONAL SPECIFICATION.
Improvements in the Shedding, Change-box, and Picking Motions
of Looms.
We, WILLIAM BROWN RICHARDSON of 33 Victoria Street Blackpool in the
County of Lancaster, Surgeon, and WILLIAM REBBLA of 11 Beamsley Mount,
Burley Fields, Leeds, in the County of York, Mechanic, do hereby declare the
nature of this invention to be as follows:-
:―
This invention relates to devices for operating and controlling the shedding,
change-box, and picking motions of looms simultaneously as required.
The devices may be used in duplicate or in any greater convenient or suitable
number according to the nature of the work to be done. Each device consists of a
reciprocating slide and a toothed quadrant disc or the like. The toothed slide is
reciprocated by a knife such as now used in looms or by any other suitable means,
and it has on its working face a recess similar to a space between the two teeth of
a spur wheel, and, on each side of the recess, a flat part. The disc or quadrant has
a tooth or projection or two or more teeth or projections capable of engagement by
the recess of the slide....
:
Assuming one of the teeth to be in engagement with the slide, and that the latter
be moved forward, the tooth will ultimately be moved out of engagement with the
recess in consequence of the rotation of the disc or quadrant on which it is formed,
and will come to rest on the following flat part, by which backward motion of the
disc or quadrant will be prevented. The disc or quadrant is consequently locked
until the return of the slide, when the tooth falls into the recess and the disc or
quadrant is reversed and brought to rest with its tooth or one of its teeth upon the
flat on the other side of the recess, where it is again locked as before. The disc or
quadrant is provided with an arm which is connected to a jack or other device for
operating the shedding, the change-box, or the picking or all or any two of them
as the case may be.
Guides may be arranged upon the periphery of the disc or quadrant for ensuring
the engagement of the tooth with the recess at each reciprocation, and there may
be interposed between each pair of devices a thin steel disc having a radius larger
than that of the disc. or quadrant and concentric therewith, for the purpose of
separating them.
Dated this 9th dow of January & D 1894
COMPLETE SPECIFICATION.
Improvements in the Shedding, Change-box, and Picking Motions
of Looms.
We, WILLIAM BROWN RICHARDSON of 33 Victoria Street, Blackpool, in the
County of Lancaster, Surgeon, and WILLIAM REBBLA of 11 Beamsley Mount,
Burley Fields, Leeds, in the County of York, Mechanic, do hereby declare the.

page_text: nature of this invention, and in whatimanner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
This invention relates to devices for operating and controlling the shedding, the
change-box, and the picking motions of looms, simultaneously as required.
The devices may be used in duplicate or in such greater number as may be
required by the work to be done. Thus, in the shedding motion there will be one
set of the devices for each shaft; in the change box motion, one set for cach box
minus one; and for the picking motion one set.
Each set of devices consists of a reciprocating slide and a toothed quadrant disc
or the like. The slide is reciprocated by a knife such as is now used in looms, or
by any other suitable means, and it has on its working face, a recess similar to a
space between two teeth of a spur wheel; and, on each side of the recess, a flat part.
The quadrant, disc, or the like, has a tooth or projection, or two or more teeth or
projections capable of engagement by the recess or recesses of the slide.
Assuming one of the teeth to be in engagement with the slide, and that the
latter is moved forward, the tooth will ultimately be moved out of engagement with
the recess, in consequence of the rotation of the quadrant or disc on which it is
formed, and will come to rest on the following flat part, and this position of rest
prevents the backward motion of the disc or quadrant. When the slide is returned,
the tooth is again brought into the recess, the quadrant or discis reversed, and is
again finally brought to rest at the end of the stroke, with its tooth on the flat on
the other side of the recess, preventing further motion as before. These motions
are repeated as long as the loom is in work. The quadrant or disc may be provided
or geared with an arm or rod which is connected to a jack or other means for
operating the shedding, the change-box, or the picking, or all or any two of them,
as the case may be.
The accompanying drawing represents a pair of the devices and their accessories
in sectional elevation, and will be hereinafter referred to.
A rocking lever A is mounted upon the shaft B which receives motion from the
crank shaft or bottom shaft of the loom in the usual manner. The opposite ends
of this lever are connected by the rods C C with the two reciprocating knives DD'
which work in the guide slots E E'. A pattern chain Facts by its pegs or
projections upon the counterweighted levers Ġ G' so as to lift them when required
by the exigencies of the work. These levers, lift and lower the hooked arms H H
each of which is attached at one end to one of the slides II and each of which
is provided above and below with a hook or equivalent projection J J'. The
arins H H being arranged between the planes of reciprocation of the knives, if
they are lifted, they will be engaged and moved to the inner end of the stroke by
the upper knife, and if lowered, they will be similarly engaged by the lower knife
and be moved to the outer end of the stroke. And, when one of the slides has
been moved from one end of its stroke to the other, it will remain there until its
actuating lever G or G¹ has been reversed, notwithstanding the continued
reciprocation of the knives.
As represented by the drawings, each slide II' has two plane: topped teeth or
projections K K between which there is a space k. A quadrant or disc. Lis
mounted above each slide and is provided with two peripheral spaces in which the
teeth K K can engage after the manner of a spur wheel. Between the two
spaces there is a tooth M having an inclined face on each side adapted to rest
upon the tops of the teeth K K at the opposite ends of the stroke. In this
position, although the slide may be moved freely as may be required, the backward
motion of the quadrant or disc is prevented, and it is consequently locked in
position until required to be reversed. The two slides and their quadrants or discs
are shewn in the drawings as at opposite ends of the stroke, one being represented
sectionally and the other in elevation.
The motion of the discs or quadrants may be communicated to the lifting jacks,
cords or the like by teeth T formed thereon and gearing with corresponding teeth
in the quadrant lever OO¹ to the outer ends of which the lifting or equivalent

page_text: devices are connected. Or, each disc or quadrant may be connected directly with
the ordinary levers which operate the healds and other appliances by means of
rods cords chains or the like.
Although only two sets of the devices are represented by the drawings it will be
understood as herein before described that any required number may be employed.
Guides may be arranged upon the periphery of the discs or quadrants for ensuring
the engagement of the tooth M with the recess k at the commencement of each
stroke, and there may be interposed between each pair of slides and discs or
quadrants a thin steel disc having a radius larger than that of the discs or quadrants
and concentric therewith, for the purpose of separating them.
When a greater number of teeth engaging the slide with the disc or quadrant
are employed than is shewn by the drawing, it should be arranged that the end
teeth of the slide be provided with plane tops as K K' and that the teeth of the
disc or quadrant which come into contact with these plane surfaces, as M, or that
all the teeth, both or either of the slide and of the disc or quadrant be so provided,
for the purpose of preventing the backward motion of the latter.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:
1. A device for actuating the shedding, the change-box, or the picking motion
of a loom, consisting essentially of a toothed slide, a toothed disc or quadrant geared
with the slide, and appliances or means for reciprocating the slide when required,
and for communicating the motion of the disc or quadrant to the healds, picking
motion, or change-box, as the case may be, constructed arranged and operated
substantially as hereinbefore described with reference to the accompanying
drawing.
2. In the apparatus described in the preceding claiming clause, a slide and a
disc or quadrant geared together by teeth or projections, which, or some of which
are provided with plane surfaces coming into contact at the end of each stroke,
constructed arranged and operating substantially as hereinbefore described and as
illustrated by the accompanying drawing.
3. An apparatus for actuating the shedding, the change-box, or the picking
motion of a loom, constructed arranged and operated substantially as hereinbefore
described and as illustrated by the accompanying drawing.
Dated this 8th day of October A.D. 1895.
W. E. HEYS & SON,
Agents for the Applicants.