A New or Improved Stop Motion for Looms.
Year: 1893

page_text: Date of Application, 14th Sept., 1893
Complete Specification Left, 9th June, 1894-Accepted, 14th July, 1894
PROVISIONAL SPECIFICATION.
A New or Improved Stop Motion for Looms.
I, EDWARD HOLLINGWORTH, of Dobcross, in the County of York, Power
Loom Maker, do hereby declare the nature of this invention to be as follows
(which invention has been communicated to me from abroad by Henry Gaunt,
and Samuel Wild, both of Woonsocket, in the County of Providence, and State
of Rhode Island, United States, Mechanics) :-
:-
This invention relates to a new or improved form of apparatus for stopping looms
when the shuttle does not properly enter the shuttle box. According to this
invention a bell crank form of lever is hinged in front of the slay board, the
lower arm of the said lever being provided with an anti-friction bowl. A
projecting finger is fixed upon the horizontal stop rod usually placed under the
breast beam and as the slay beats up, the bowl on the bell crank lever attached to
the slay rides upon the projecting finger on the stop rod, and so long as the shuttle
has been sent properly into its shuttle box the bowl at each beat up of the slay
continues to ride upon the projecting finger, but if a portion of the shuttle was
projecting out of the shuttle box the upper arm of the bell crank lever would come
into contact with the projecting shuttle so that when the bowl arrived at the
projecting finger the latter would be depressed, in doing which, the stop rod would
be caused to rock in its bearings and thus stop the loom.
By means of the apparatus herein described the loom would be automatically
stopped every time the shuttle failed to enter the shuttle box. The apparatus
herein described is applied to each end of the loom.
Dated this 13th day of September 1893.
TASKER & CROSSLEY,
Huddersfield, Agents.
COMPLETE SPECIFICATION.
A New or Improved Stop Motion for Looms.
I, EDWARD HOLLINGWORTH, of Dobcross, in the County of York, Power
Loom Maker, 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 (which invention has been communicated to me from
abroad by Henry Gaunt, and Samuel Wild, both of Woonsocket, in the County of
Providence, and State of Rhode Island, United States, Mechanics) :-
This invention relates to a new or improved form of apparatus for stopping looms
when the shuttle does not properly enter the shuttle box.
According to this invention a bell crank form of lever is hinged in front of the
slay board, the lower arm of the said lever being provided with an anti-friction
bowl. A projecting finger is fixed upon the horizontal stop rod usually placed
under the breast beam and as the slay beats up, the bowl on the bell crank lever
attached to the slay rides upon the projecting finger on the stop rod, and so long as
the shuttle has been sent properly into its shuttle box the bowl at each beat up of the
slay continues to ride upon the projecting finger, but if a portion of the shuttle was
projecting out of the shuttle box the upper arm of the bell crank lever would come
into contact with the projecting shuttle so that when the bowl arrived at the
projecting finger the latter would be depressed, in doing which, the stop rod would
be caused to rock in its bearings and thus stop the loom.

page_text: Referring to the drawings
Fig. 1 is a sectional elevation of a portion of a loom, taken on line 1, 1, Fig. 2
looking in the direction of arrow a, in same fig., with my improved stop motion
applied thereto.
Fig. 2 is a front elevation of portions of the loom shewn in Fig. 1, looking in the
direction of arrow b, Fig. 1, with the breast beam and some of the parts removed
for the sake of clearness, and,
Fig. 3 is a plan view of the parts shewn in Fig. 2, looking in the direction of
arrow c, in Fig. 2.
In the accompanying drawings, 1 is a portion of one side of the loom frame, 2 is
the slay sword, pivoted at its lower end on the stud 3 supported in the loom frame,
and 4 is the connecting rod extending to the crank shaft, which is not shewn.
5 is the slay board, 6 the hand rail, and 7 the breast beam. A portion of the
shuttle boxes 8 are shewn at one end of the slay board, and each shuttle box is
provided with a swell finger 9, in the ordinary way; only one of which is shewn in
the drawings. A shipper shaft 10 is supported in bearings under the breast beam,
.and the shipper lever 11 is fast thereon, and provided with a handle 11' at its
upper end, and a pin 11 at its lower end, adapted to engage a slot in the upper
end of the lock lever 12, mounted on a stud 13, secured to the loom side 1, whilst
its lower end is connected with the shipper rod 24, shewn in dotted lines, Fig. 1.
All of the above parts are of well known construction in this class of loom, and
form no part of the present invention.
I will now proceed to describe my stop motion combined with the shipping
mechanism shewn in the drawings, and above described.
It will be understood that this stop motion may be combined with other forms
of shipping mechanism than the one herein referred to, if desired; for instance
with the shipping mechanism in which the shipper shaft has a longitudinal motion,
instead of a rotary motion.
Upon the front of the slay board 5, at each end thereof, is supported a pivoted
arm 14, extending longitudinally, with its inner end pivotedly attached to the front
of the slay, in this instance by a pin 15, supported in a plate 16, attached to the
front of the slay by screws 17.
The upper edge of the arm 14, when the arm is in its normal position, as shewn
in the drawings, extends in a plane substantially on a level with the shuttle race of
the slay, and is supported in this position by a knob or stud 18, secured in the
front side of the slay, see Fig. 2.
The free end 14 of the arm 14 is bent so as to extend around the end of
the shuttle race, as shown in Fig. 3, and in front of the mouth of the shuttle boxes.
Projecting down from the arm 14, near the free end thereof, is a rigid arm 19,
preferably made integral with the arm 14, as shewn in Figs. 1 and 2, with its
lower eud preferably projecting below the slay, and preferably curved outwardly,
and provided with a bowl 20 at the end thereof.
Fast on the shipper shaft 10 is an arm 21, adjustably secured on said shaft by a
set screw 22, which arm extends inwardly towards the slay, and has its outer
end 21 inclined, and preferably broadened, as shewn in Fig. 3.
The arm 21 is so placed on the shipper shaft 10, that its end 211 thereof will
extend directly in the path of the bowl 20 at the end of the arm 19, so that as
the slay beats up the bowl 20 will ride on the inclined end 21' of the arm 21, and
thus raise the free end of the arm 14 above the end of the slay.
From the above description, in connection with the drawings, the operation of
this stop motion will be readily understood by those skilled in the art.
It will be understood, as before stated, that a pivoted arm 14 is arranged at
each end of the slay, and a rigid arm 21 is attached at each end of the shipper
.shaft.
As long as the picking mechanism, and shuttle box operating mechanism is
properly operated, and none of the shuttles project beyond the end of the box, the
loom will continue to operate, and the free end of the pivoted arm 14 will be free

page_text: to be raised above the end of the slay, by the engagement of the bowl 20 on the
arm 19, with the end 21' of the arm 21; but whenever, for any reason, a shuttle 23,
extends beyond the end of its box, and beyond the end of the shuttle race, as
shewn in Figs. 2 and 3, the free end of the arm 14 will be prevented from being
raised, by coming in contact with the end of the shuttle, therefore the bowl 20 will
be prevented from riding up on the end 21¹ of the arm 21, and will consequently
depress, or force the arm downward, and cause the shipper shaft 10 to be rotated,
and the shipper rod 24 to be operated to move the driving belt and stop the loom.
It will thus be seen, that the loom is automatically stopped on the forward
motion of the slay by this stop motion and therefore the picking of the shuttles on
the backward movement of the slay, and consequently breakages are prevented.
The advantages of this stop motion for looms will be readily appreciated by those
skilled in the art.
The apparatus is simple in construction and operation, and may be applied to, and
combined with looms of the ordinary construction already in use, without altering
the construction of the loom, or changing the parts thereof.
When for any reason it is not desired to use the stop motion, the arm 21 is
adjusted on the shipper shaft 10 so as not to be engaged by the bowl 20 on the
arm 19.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
Firstly. In a stop motion for looms, the combination with the slay, of an arm
pivoted at one end on the front thereof, with its free end bent around the end of
the shuttle race, and adapted to be engaged by a shuttle projecting from its box,
such said pivoted arm being provided with an arm extending downwardly there-
from, with its lower end adapted to engage an arm fast on the shipper shaft, on
the forward motion of the slay, for the purpose stated, substantially as shewn and
described.
Secondly. In a stop motion for looms the combination with the slay, of an arm
located at the end of the slay, and pivoted at one end on the front side thereof,
with its free end extending around the end of the shuttle race, and adapted to be
engaged by a shuttle projecting from its box, the said pivoted arm being provided
with an arm extending downwardly therefrom, with its lower end adapted to engage
an arm fast on the shipper shaft, for the purpose stated, together with a knob or stud
secured on the slay for supporting the free end of the pivoted arm, substantially as
shewn and described.
Dated this 8th day of June 1894.
TASKER & CROSSLEY,
Huddersfield, Agents.