Improvements in or relating to Stop-apparatus for Use in the Winding of Yarn, Thread, and the like.
Year: 1894

page_text: Date of Application, 18th Dec., 1894
Complete Specification Left. 17th Sept., 1895-Accepted, 14th Dec.,
1895
PROVISIONAL SPECIFICATION.
Improvements in or relating to Stop-apparatus for Use in the
Winding of Yarn, Thread, and the like.
I, JOSEPH ROBERT LEESON, of 293 Devonshire Street, City of Boston County
of Suffolk, State of Massachusetts, United States of America, Manufacturer, do
hereby declare the nature of this invention to be as follows:-
--
My invention relates to stop-apparatus for use in the winding of yarn thread and
the like which is particularly advantageous for employment in the winding of double
or multiple threads upon cops and the like.
A preferred form of my apparatus, to which form however this invention is
not limited, comprises a circuit-closing device adapted to be held in suspense by
each thread to keep open or broken an electric circuit so long as the thread
remains tense and unbroken, and to operate to close the circuit through electro-
magnetic control or operating mechanism to stop the winding should any thread
become broken; novel constructions and arrangements of mechanism for use in
combination with the circuit-closing devices above referred to form part of this
invention. For instance I may construct my improved stop-apparatus as follows;--
Upon the operating-handle of the winding machine which is arranged to tend
always to move into the "stop" position, a shoulder is provided to engage with a
projection carried by an arm pivoted to the machine. This arm is in operative
connection with the armature of an electro-magnet included in a battery circuit
containing two contact-plates. An insulated spring in the same circuit makes
contact with the operating handle when the latter is in the running position. The
threads are led from bobbins over suitable guide rollers through the eyes of pins
which slide in a bar of insulating material and constitute the circuit-closing devices
hereinbefore referred to.
A spring is coiled around each pin and bears upon a cross-pin extending from
each pin into an L-shaped slot in one of the above-named contact-plates
adjacent, and there is a wire or connection between the plate and each of the
cross-pins.
When the parts are in operative position and the threads are being wound each
thread holds the corresponding circuit-closer in an elevated position but if any
one thread breaks its particular circuit-closer will descend and close the battery-
circuit through the electro-magnet whereupon the electro-magnet operates to
disengage the projection aforesaid from the shoulder on the operating handle
which not only moves to stop the winding but also to break the circuit to prevent
waste of current as soon as the stop motion has acted.
The L-shaped slots and the pins which enter them enable any of the circuit
closers to be held out of action when desired.
The circuit-closing devices operating as before described may be employed in
combination with any other suitable kind of stop-mechanism as may be desired.
Dated this 18th day of December 1894.
BOULT & WADE,
Agents for the Applicant.

page_text: Improvements in or relating to Stop-apparatus for Use in the
Winding of Yarn, Thread, and the like.
I, JOSEPH ROBERT LEESON of 293 Devonshire Street, City of Boston, County
of Suffolk, State of Massachusetts, United States of America, Manufacturer, do
hereby declare the nature of this invention aud in what manner the same is to
be performed to be particularly described and ascertained in and by the following
statement:-
My invention relates to stop-apparatus for use in the winding of yarn thread and
the like which is particularly advantageous for employment in the winding of double
or multiple threads upon cops and the like.
A preferred form of my apparatus, to which form however this invention is not
limited, comprises a circuit-closing device adapted to be held in suspense by each
thread to keep open or broken an electric circuit so long as the thread remains
tense and unbroken, and to operate to close the circuit through electro-magnetic
control or operating mechanism to stop the winding should any thread become
slack or broken; novel constructions and arrangements of mechanism for use in
combination with the circuit-closing devices above referred to form part of this
invention.
In the accompanying drawings:
:-
Figure 1 is an end elevation of a cop-winding machine having one of the con-
structions of stop-apparatus according to my invention applied thereto.
Figure 2 is an elevation of a detail of Figure 1.
Figure 3 is a section on the line 3, 3 of Figure 2.
Figures 2 and 3 are drawn to a larger scale than that of Figure 1.
Like letters indicate like parts throughout the drawings.
A is the main frame of the machine. B is the shaft upon which the cops are
wound. C is a handle carried on the shaft C for starting and stopping the machine.
An extension from the handle C is provided with the shoulder C2 with which
engages a detent D on a lever D' pivotted at D2 to the frame A. The arm D 3
of the lever D' is pivotted at E to a lever E pivotted at E2 to the side of the
frame A and carrying at the onter end an armature E3 of an electro-magnet F.
The electro-magnet Fis in a circuit including a battery G and two plates H, I
electrically separate from each other. The circuit from the battery G is by way
of the lead G' to the plate H and the pins N hereinafter described, between
which latter and the plate I there is normally a gap or interruption of the circuit.
From the plate I the lead G 2, goes to the electro-magnet F whence the circuit is
completed through the frame A to the handle C. An insulated spring J is arranged
to make contact normally with an arm C3 on the handle C, when the lever is in
the position shown in Figure 1, ie, at times when the parts are in running order
and position. This spring in addition to making electrical contact as described and
thus completing the connection to battery G by the lead G3 tends always to
throw the lever C in the direction indicated by the arrow in Figure 1, to stop the
machine and also to interrupt the electric circuit at J.
Each thread passes from the spools to the roller K and from that roller to a
smaller roller L, and thence down to a guide roller M, and up to the roller N, and
between the rollers K and L where each thread passes through the eye of one of a
series of pins N, which slide freely in openings in a cross bar O of wood or other
insulating material, to which the plates H and I are connected, and by which they
are insulated from each other.
A spring P coiled around each rod N bears upon a cross pin Q extending
through the rod and into an L-shaped slot R in the plate Ħ and there is a

page_text: wire Q or other electrical connection between the plate H and each of the
pins Q.
When the parts are in operative position and the threads are being wound,
each thread holds each rod N in its elevated position, as shown in Figure 1
but if any one thread should break or slacken, its rod N will descend and make
contact with the plate I, completing the circuit G G H Q' NIG 2 F A C C 3
JG 3 G, exciting the electro-magnet drawing down the armature E3 thus
disengaging detent D from the shoulder C2 when the shaft C1 will swing in
the direction of its arrow, Figure 1 and stop the machine. When the shaft
swings in the direction of its arrow, the contact between the arm C3 and the
spring J just previously permitting the current to pass, is broken, so as to break
the electric circuit as soon as the stop motion device has acted, and prevent the
battery from being exhausted.
The rod C¹ may control stop-mechanism of any suitable kind. So far as the
present invention is concerned the essential condition is that a stop-mechanism
tending normally to stop the machine under its control is kept inoperative by having
a connection with the shaft C¹, which latter in turn is normally kept inoperative by
a detent such as D controlled in the manner herein before exemplified..
As shown the device above described is adapted for winding six threads, but it
will be evident that either a greater or less number may be wound. If a greater
number are wound, there will be a greater number of rods N. If a less number is
wound, it is necessary to throw one or more of the rods out of action, and this can
readily be done by lifting any rod and then turning it so as to bring its pin Q into
the horizontal end of the corresponding slot R when it will be held up out of contact
with the plate I.
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 :-
1. In electro-mechanical stop-apparatus for thread-winding machinery and the
like the combination with an electro-magnet and a source of current therefor of
a stop handle and detent such as C and D the latter operatively connected
with the armature of the electro-magnet substantially as hereinbefore described.
2. In electro-mechanical stop-apparatus for thread-winding machinery and the
like the combination with an electro-magnet and a source of current therefor of
a stop handle C detent D operatively connected with the armature of the electro-
magnet, a projection C3 and a spring J the two latter constituting a circuit-inter-
rupter substantially as and for the purpose described.
3. In electro-mechanical stop-apparatus for thread-winding machinery and the
like the combination with an electro-magnet and a source of current therefor of
circuit-closing apparatus comprising a contact N suspended from each thread, contact
plates Hand and a guide O substantially as hereinbefore described.
4. In electro-mechanical stop-apparatus of the kind claimed in Claim 3 the
combination with each contact N of a projection Q and a plate H with an angled
slot or slots R therein substantially as and for the purpose herein before described.
5. The combination and arrangement of parts constituting a complete electro-
mechanical stop-apparatus substantially as and for the purpose described and
illustrated in the accompanying drawings.
Deted this 17th day of Sentember 1895
BOULT & WADE,
Agents for the Applicant.