An Improved Shuttle Checking Motion for Looms for Weaving.
Year: 1894

page_text: Date of Application, 3rd Dec., 1894
. Complete Specification Left, 3rd Sept., 1895-4ccepted, 5th Oct.. 1895
PROVISIONAL SPECIFICATION.
An Improved Shuttle Checking Motion for Looms for Weaving.
We, JOHN KAYE and WALTER SCHOFIELD of the Firm of Kaye and
Schofield, of Alma Works, Lockwood, Huddersfield, Yorkshire, Engineers and
Machine Makers do hereby declare the nature of this invention to be as
follows:-
This invention refers to shuttle checking notions for looms which are employed
to actuate the picking sticks at each pick of weft for the purpose of advancing the
pickers into the shuttle boxes to meet and check the incoming shuttles. The
object of our improvements is to provide a simple durable and effective motion for
aforesaid purposes, and having the advantage over other checking motions of
checking each pick inclusive of the last and first picks introduced before stopping
and on re-starting the loom, whereby the violent concussion of the shuttles through the
failure of the checking motion to act when the loom is stopped and re-started, as is
at present the case, is entirely avoided, and, as a consequence, all liability of the
weft being stripped off the bobbins is removed.
In carrying out our invention we affix to the rear or other suitable part of the
slay or running board two or more brackets to one of which is pivotted a suitable lever
having a horizontal rod connected thereto which is supported in the other bracket
In a suitable
or brackets and is free to slide freely therein in an end wise direction.
position on said rod and free to turn or swivel thereon is placed a lever arm or
device adapted to move endwise with the horizontal rod; or a swivelling or toggle
jointed device may be secured to the rod to answer the same purpose. To the
lever arm or swivelling device is connected one end of a short radius bar or rod
whose opposite end enters a tube or barrel centred on a bracket fixed to the looin
side and forming a separate continuation of the radius bar. The horizontal rod
and lever move bodily with the "going part" of the loom, and the radius bar is
thereby moved backwards and forwards in the tube or hollow pivotted barrel as
the point of its connection with the horizontal rod alternately approaches towards
and recedes from the pivot of the barrel which forms the centre of its movement;
the swivelled connection of said bar with the horizontal rod allowing for the are of
motion described by the going part, and ensuring an easy and certain action of the
parts. In its backward movement, the radius bar abuts against a pin passed through
the rear end of the barrel and its further progress being thus impeded prior to the
loom reaching the back centre, the horizontal rod is in consequence forced endwise
in its bearings to take up the uncompleted movement of the radius bar and the lever
is thus oscillated, and by means of wires, cords or chains connected to each end
thereof and to the picking sticks at each side of the loom said picking sticks are
drawn forward into the shuttle boxes and thus advance the pickers to meet and
check the incoming shuttle.
The checking continues automatically as long as the loom is in motion and being
determined solely by the movement of the "going part" it checks every pick from
first to last. When the loom is stopped and the weaver operates the handle for
throwing the clutches out of gear to enable hum to reverse the loom or shed back,”
a lever or rod or suitable slide connected to said, handle actuates a lever or trigger
to which the pin in the end of the barrel is attached, and raises said pin clear of
the radius rod, thus disengaging the checking motion automatically by the same

page_text: movement which throws the loom out of gear for reversing purposes, and allowing
the picking sticks to fall back beyond the boxes and out of the way of same so that
there is no liability of them jamming or blocking the boxes and otherwise doing
danage when lagging" or "shedding back."
**
Dated this 30th day of November 1894.
Die Onecking motion for Looms for Weaving.
We, JOHN KAYE and WALTER SCHOFIELD, of the Firm of Kaye and
Schofield, of Alma Works, Lockwood, Huddersfield, Yorkshire, Engineers and
Machine Makers, 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 refers to shuttle checking motions which are employed in looms
for weaving to actuate the picking sticks at each pick of weft for the purpose of
advancing the pickers into the shuttle boxes to meet and check the incoming
shuttles.
The object of our improvements is to provide a simple, durable and effective
motion for aforesaid purposes having the advantage over other checking motions of
checking each pick inclusive of the last and first picks introduced before stopping
and on re-starting the loom, whereby violent concussion of the shuttles through
the failure of the checking motions to act when the loom is stopped and re-started,
as is at present the case, is entirely avoided, and, as a consequence thereof, there
is no liability of the weft being stripped off the bobbins.
For the purpose of fully explaining our said invention reference is hereinafter
had to the annexed sheets of drawings in which :-
Fig. 1 is plan view of our improved shuttle checking motion as applied to a
loom.
Fig. 2 is front elevation thereof.
Fig. 3 is an enlarged side elevation of a portion of the motion, and
Fig. 4 is plan of same, partly in section.
On the drawings letter a represents the "slay board" or "going part" of the
loom on the underside of which, in any suitable position, is secured a bracket
carrying a stud e whereon is mounted a lever d having connected thereto one end
of a horizontal rode supported at the rear of the "running board"
or bearings and free to slide therein in an endwise direction. Fast on the rod e
a in a bearing
so as to move end wise therewith is a boss or bracket y provided with a stud h on
which is pivoted one end of a short radius bar or rod i whose opposite end enters
into a catch box or hollow tube or barrel j centered at k on a bracket fixed in a
convenient position to the side fraine m of the loom and forming a separate hinged
or pivoted continuation of the radius bar which is movable with said barrel or
catch box about the centre k.
The lever d and rode and connections are carried bodily backwards and
forwards with the "going part" a and cause the radius rod i and barrel j to be
oscillated or turned about the centre k to the extents of motion of said "going
part," such radius rod, by reason of the stud / on which it is pivoted moving in a
straight line as indicated by broken line in Fig. 1, being forced in and out of the
barrel according as said stud h alternately approaches toward or recedes from
the pivot k of the barrel, the rod e and radius har i having sufficient play to allow
ior the are of motion described by the "going part,
" or the connection between

page_text: said radius bar and rode may be suitably swivelled or jointed for the same
purpose.
The going part" a is shown in Fig. 1 in the position it occupies when at the
Front centre, and it is in its movement from front to back centre, that is, in the
direction of arrow n, that the radius rod i is caused to enter further into the barre!
or catch box j. This inward movement of the radius rod is, however, almost
immediately arrested by a pin o passed through the rear end of the barrel against
which pin the radius bar abuts prior to the "going part" arriving at the back
centre, the result being that the horizontal rod e is forced endwise in the bearings
in the direction of the arrow to take up the uncompleted movement of the radius
bar, thereby causing the lever d to be oscillated on its fulcrum. To each end of
said lever are attached wires, cords or chains p whose opposite ends are connecte.l
in any ordinary manner to the picking sticks at each side of the loom said wires,
when the lever is oscillated as set forth, being drawn in the direction of the arrows
and advancing the picking sticks and pickers a short distance into the shuttle
boxes to meet and check the velocity of the incoming shuttle.
The checking of the shuttles as above set forth continues automatically as long
as the loom is in motion and, being determined solely by the movement of the
going part," will check every pick from first to last.
When the loom is stopped and the weaver operates the ordinary lever (sec
Fig. 3) or equivalent device for throwing the clutches out of gear or otherwise
actuating certain mechanism to enable him to reverse the loom or "shed back" a
finger or catch s attached to said lever engages with and depresses one end of a
lever or trigger centred at t on the bracket and raises the pin o, which is
connected to the opposite end of said lever t, clear of the interior of the barrel or
catch box j through which the radius bar i is therefore permitted to pass freely to
the full extent of its motion during the "shedding back" of the loom without in
anywise affecting the rod e and lever d whereby the checking motion is disengaged
automatically by the same movement which throws the loom out of gear for
reversing purposes and allows the picking sticks to fall back beyond and clear of the
shuttle boxes so that there will be no liability of them jamming or blocking the
sand boxes or otherwise doing damage when lagging" or "shedding back." π is a
stop piece to limit the motion of the lever or trigger t.
6.
The actuation of the lever r to throw the loom into gear again releases the
lever or trigger t and the pin o thereupon drops down into its normal position and
blocks the rear end of the opening in the barrel j, whereby on re-starting the loom,
the motion at once comes into action and checks the first pick.
By adjusting the boss or bracket g on the rod e, the end of the radius bar i can
be moved nearer to or further from the pin o and thus arranged to abut against it
at an earlier or later period in the backward or return movement of the " going
part" by which means the extent of movement transmitted to the picking sticks
can be varied to suit requirements.
"
The wires or cords p are supported in suitable guides or brackets or by small
pulleys placed intermediate of the lever d and the picking sticks.
We bolt the bracket to the loom side m in such a position that when the
going part" is at the back centre, the barrel will just clear the rod e.
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 :-
:-
Firstly. The radius rod or bar and parts comprising the herein described
motion for checking shuttles on their arrival in the shuttle boxes in looms for
weaving, operated by and through the motion of the "going part" and all arranged
and acting in the manner and for the purposes substantially as herein shewn and
described.
Secondly. In shuttle check motions, the combination with lever d, slide rod e,
radius bar i, barrel or catch box and stop pin o, of means for withdrawing said pin

page_text: out of the barrel or catch box and disengaging the said check motion on the loom
being reversed or thrown out of gear for "shedding back" substantially as herein
shewn and described.
Dated this 2nd day of September 1895.
TASKER & CROSSLEY,
Huddersfield, Patent Agents.