Year: 1887

page_text: Date of Application, 30th Dec., 1887
Complete Specification Left, 12th Sept., 1888
Complete Specification Accepted, 12th Oct., 1888
I EDWARD BROOK, of Rashcliffe Iron Works, Huddersfield, Yorkshire, Managor, do
hereby declare the nature of this invention to be as follows:-
The first part of this invention has reference to prior patents granted to George
Crompton, No. 3655, A.D. 1883 and No. 4051 A.D. 1887. In the Specifications of
the said Patents toothed cranked wheels are employed, placed at a position between
two broad toothed wheels, both of which receive intermittent motions in opposite
directions, the cranked wheels being placed into gear by the jacquard mechanism
with either one or the other of such driving wheels or pinions, for the purpose of
raising and lowering the shuttle boxes, such mechanism being clearly set forth in the
Specifications above referred to.
My invention consists in the application thereto of an additional pivotted gear
carrier cranked toothed wheel, and connecting rod, which additional parts I employ
for the purpose of working the picking mechanism, the object of my invention
being to make it absolutely impossible to pick at both ends of the loom at the
same time, and to provide means for causing the pick to take place at one end
or the other as the pattern chain indicates.
In carrying out my invention I add the additional toothed crank wheel carried
by the additional pivotted gear carrier and operated by the pegging mechanism in
the same manner as is done in regard to the shuttle boxes, but with regard to
the second part of my invention one end of the said additional connecting rod is
connected by a lever and shaft to a slotted lever containing a sliding block so
that as the toothed crank is raised or lowered by the jacquard mechanism and the
slotted lever caused to vibrate, the block in the slotted lever being suitably connected
to a second shaft will cause the said shaft to rock or oscillate and by means of a lever
secured thereon operates a picking grate common to some classes of looms, whereby
the picking tappets are placed either in or out of position to operate on the picking
bowls; by which means the picking of the shuttle can only take place at one end of

page_text: the loom at the same time as determined by the pattern chain and consequently
prevents the liability of two shuttles being in the shed at one time.
In connection with the second part of my invention the sliding block in the slotted
lever is connected to another lever or hand lever, so that when the weaver operates
this last named lever, he can move the sliding block and the picking grate to such a
position that both the picking tappets will remain inoperative whilst the loom is being
reversed; and this will be found of considerable advantage when the weaver requires
to find the broken end of weft and for other purposes.
By the employment of the apparatus herein described, the loom is rendered easier
for the weaver to manipulate than hitherto, and it also permits one set of shuttle boxes
to be operated independently of the other set and also ensures accurate and reliable
picking.
Dated th: 00
1
1007

page_text: COMPLETE SPECIFICATION.
Improvements in Picking Motions for Looms.
I EDWARD BROOK of Rashcliffe Ironworks, Huddersfield, Yorkshire, Manager 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 has reference in the first place to improvements upon the apparatus
set forth in the specifications of prior patents granted to George Crompton and
numbered 3655 A.D. 1883 and 4051, A.D. 1887. In the specifications of the said
patents, toothed crank discs are employed situated between two broad toothed wheels
both of which receive intermittent motions in opposite directions. The crank dises
are at appropriate times placed into gear by the jacquard mechanism with either
one or the other such driving wheels or pinions for the purpose of raising and lowering
the shuttle boxes such mechanism being clearly set forth in the specifications above
referred to.
My invention consists in the first place in the application to the said mechanism
of an additional pivotted gear carrier a toothed crank disc and a connecting rod
which additional parts I employ for the purpose of controlling the picking
mechanism, the object of this part of my invention being to make it absolutely
impossible to pick at both ends of the loom at the same time, and to provide
means for causing the pick to take place at one end or the other as the pattern
chain indicates.
In carrying out my invention I arrange the additional toothed crank disc carried
by the additional pivotted gear carrier and operated by the pegging mechanism in
the same manner as obtains in regard to the like parts operating the shuttle boxes.
One end of the said additional connecting rod is connected by a lever and shaft to
a slotted lever carrying a sliding block when the toothed crank disc is raised or
lowered by the jacquard mechanism the slotted lever is caused to vibrate; the block
in this slotted lever being suitably connected to a second shaft causes the said
shaft to rock or oscillate and by means of a lever secured thereon operates a
picking grate common to some classes of looms, whereby the picking tappets are
placed either in or out of position to operate on the picking bowls. By this device
the picking of the shuttle can only take place at one end of the loom at a given
time as determined by the pattern chain and consequently the liability of two
shuttles being in the shed at one time is prevented.
This invention has reference in the second place to means for enabling the
weaver to place the picking grate in such a position that both the picking tappets
will remain inoperative when the loom is being reversed. To this end the sliding
block in the slotted lever is connected to another lever or to a hand lever by which
the weaver can move the sliding block into a position where it ceases to operate
on the picking grate. This arrangement is of considerable advantage when the
weaver requires to find the broken end of weft or for other purposes.

page_text: By the employment of the apparatus herein described the loom is rendered easier
for the weaver to manipulate than bitherto and it also permits one set of shuttle
boxes to be operated independently of the other set and also ensures accurate and
reliable picking.
Referring to the accompanying two sheets of illustrative drawings Figure 1
is a front elevation and Figure 2 is a plan view of so much of the shuttle
box actuating mechanism and picking mechanism as is necessary to illustrate my
invention.
I combine with the shuttle box actuating mechanism set forth in the specifications
above referred to a fifth gear carrier 10 with its toothed crank disc e and connecting
rod for the purpose of working or putting in and out of gear sliding tappets or
catches whereby the picking stick is caused to move and the shuttle to be thrown at
that end of the loom determined by the indicating chain.
The two long partial gear wheels 8 and are made longer than heretofore so
as to gear with the additional toothed crank disc and the end of the connecting
rod is attached to a lever 1 secured to a rock shaft 2 shewn to pass through
the loom side by dotted lines.
There is fixed on the shaft 2 a slotted or solid lever 3 upon which is placed a
block or connection 4 capable of being moved or slidden thereon from its outer
end to a position near the centre of the shaft 2.
When the block 4 is moved to the outer end of the vibrating lever 3 it receives
a backward and forward motion which is transmitted by the rod and other con-
nections not shewn, to the sliding picking tappets or catches and thus causes first one
and then the other to be in operative connection with its corresponding picking
stick.
When the block 4 is at the inner end of the lever it places the picking tappets or
catches out of gear at both ends thus preventing the picking sticks being moved or
the shuttle thrown at either end.
The change of position of the block 4 on the lever 3 may be effected by a handle 6
placed in any convenient 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
1. In looms the combination of a shuttle-box actuating mechanism, having inter-
mittently-revolving long partial gear wheels e³ and c, with an additional
toothed crank wheel and connecting rod c for the purpose of working pick con-
carrier 10,
gear
trolling mechanism substantially as herein described.
2. In looms the combination of a toothed crank wheel c and a connecting rod co,
with a vibrating lever 3 and moveable block or piece 4 substantially as herein
described for the purpose specified.
Dated this Eleventh day of September 1888.