Year: 1893

page_text: Date of Application, 15th Aug., 1893-Accepted, 30th Sept., 1893
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Figure 6, a view of a convenient tool for cooperating with the attachment.
Similar reference numerals and letters of reference in the several figures indicate
similar parts.
The
Our present invention resembles the one contained in our prior Patent in
embodying preferably in a single structure, a bobbin packing consisting of metallic
fingers, adapted to grasp the interior of the bobbin, preferably substantially as
shown in our prior Patent and in Figure 4, and separable jaws between which the
yarn is held, as shown, and the bobbin packing consists in the present structure of
a sleeve or tubular portion 1 constructed of a single piece of sheet metal with its
upper portion slitted at 2, 2 forming a series of tongues or fingers 3 connected at
their upper ends by the metal of which the sleeve is formed, said fingers being
flattened somewhat and bearing at their center portions on the spindle, while their
free edges are in position to grasp the bore of the bobbin, as in Figure 4.
lower end of the sleeve is split so as to be clamped on the spindle. 4 indicates the
stationary yarn-holding jaw, preferably composed of sheet metal, soldered or
otherwise rigidly connected to the tubular body 1, and 5 the movable jaw, also
preferably stamped out of sheet metal and sliding loosely on the tubular body 1,
the diameter being greater than that of the upper jaw 4, and the outer portion
being inclined downwardly, as shown. The lower end of the tubular portion 1 is
split and encircled by a collar 6, through which passes a screw 7 engaging the
part 1 and clamping it on the spindle and also holding the collar rigidly, and to
suitable ears on this collar are pivoted arms 8 having at their upper ends balls or
weights 9, and pivoted to these arms a short distance above their lower ends, are
links 10 also pivoted to suitable ears 11 formed on the lower side of a ring 12
encircling the tubular part 1 and arranged to operate on the under side of the
movable jaw 5. Between the ring 12 and the collar 6 is a spring 13 which holds
the jaws 4 and 5 in contact and tends to straighten out the toggles formed by the
links 10 and arms 8, the weights 9 being heavy enough, so that when the spindle is
rapidly rotated they will fly out by centrifugal force, drawing the movable jaw

page_text: downward, against the compression of the spring, as in Figure 3, and permitting
the end of the yarn grasped between them to fly out. The upper or stationary
jaw 4 is preferably smaller than the base of the bobbin A on the spindle D with
which it is adapted to be used and the faller wire B supported on arms B' on a
shaft B on the carriage B³ of the mule is constructed as usual, so that it may be
depressed below the lower end of the bobbin when in position on the spindle, so
that the yarn may draw between the jaws.
The operation of the device will now be readily understood.
Assuming the bobbin secured to the spindle by means of the fingers 3 on the
tube 1, in the manner described in our previous Patent and shown herein in
Figure 4, the operator desiring to remove the full bobbin from the mule, depresses
the faller wire until it is at about the level of the opening between the jaws of the
yarn-holder, and the spindles are rotated a short distance until the yarn is drawn
down on the line between the jaws, as in Figure 1, and then he stops the mule. He
then takes a tool, such as shown in Figure 6, embodying a series of teeth 20 secured
to a bandle 21 and having a rib 22 on its lower side and resting this on the top of
the carriage, presses the fingers inward and against the projecting portion of the
lower movable jaw 5 of a series of yarn-holders, moving said jaws downward
against the compression of their springs and allowing the yarn to draw in between
them by its own elasticity, and then depresses the outer end of the handle pivoting
it on the rib 22, and raises the fingers upward, engaging the lower sides of the
bobbins and removing the latter from the packing or holding devices on the spindle,
and as he does this the jaws of the yarn-holders are pressed together by their
springs gripping the yarn tightly and breaking it as the bobbins are raised and
leaving the end extending to the main or twisting part of the mule grasped
between the jaws. This operation is completed the whole length of the mule frame
or carriage until all of the full bobbins have been removed and empty ones
substituted for them the faller wire B having been previously raised from the
position in dotted lines, the lower faller wire indicated by C is then raised and the
spindles rotated one or two revolutions to permit the yarn to draw on the bobbins-
and then the mule is started in the usual manner, the carriage or frame B³, carrying
the spindles, moving inward and winding the yarn upon the bobbins. As soon as
the spindles begin to rotate with any speed the balls 9 fly outward, opening the jaws
of the yarn-holder against the tension of the springs 13 and permitting the end of
the yarn previously grasped by the jaws to fly out, when the operation of spinning
is proceeded with in the usual manner and when the bobbins are full, they may be
removed and empty ones substituted in the manner described.
By the use of this device, it will be seen that the bobbins can be removed, a
number at a time, if desired, and the ends of the yarn retained without wasting
any yarn whatever, and the spindles will always be clean and no loose ends retained
between the gripping jaws, therefore there will be no waste yarn and the operation
of the mule can be carried out rapidly and economically.
It will be understood that while we, by preference, make the upper yarn-holding
jaw stationary and the lower one movable and that this is desirable for many
reasons it is not essential, and where in the claims we have referred to the movable
and stationary jaws, we wish to be understood as meaning jaws that are relatively
movable or separable.
Also, the ring beneath the movable jaw is simply for the purpose of convenience
in construction and economy in weight and cost, and the links could be connected
directly to the jaw if desired.
The construction of a governor actuated by centrifugal force or air pressure
could be varied, if desired, without departing from the spirit of our invention.
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. In a yarn-holder for spindles, the combination with the separable yarn-holding

page_text: jaws and a spring for closing them, of an automatic device for separating said jaws.
by the rotation of the spindle, substantially as described.
2. In a yarn-holder for spindles, the combination with the separable yarn-holding
jaws, of an automatic device for separating said jaws by the rotation of the spindle,
substantially as described.
3. In a yarn-holder for spindles, the combination with the separable yarn-holding
jaws and a spring for closing them, of a rotary governor device connected to one of
the jaws and separating them when the spindle is in motion, substantially as
described.
4. In a yarn-holder for spindles, the combination with the separable yarn-holding
jaws and a spring for closing them, of the toggle arms connected to the spindle and
operating on one of the jaws, one of the arms of each toggle being weighted,.
substantially as described.
5. In a yarn-holder for spindles, the combination with the separable yarn-holding
jaws, the ring engaging one of the jaws, and the spring for moving it, of the toggles
formed by the weighted arms and links pivoted together and also pivoted to the
spindle and ring, substantially as described.
6. As an article of manufacture, a yarn-holder adapted to be applied to a spindle,
consisting of a tubular body having a bobbin-holding device and separable yarn-
holding jaws thereon, of a jaw-opening device operated by the movement of the
spindle operating to separate the jaws when the spindle is rotated, substantially as
described.
7. As an article of manufacture, a yarn-holder adapted to be applied to a spindle,
consisting of a tubular body having bobbin-holding devices thereon and separable
yarn-holding jaws, the jaw next the bobbin being relatively smaller than the other
one and smaller than the base of the bobbin, and a spring for closing the jaws,.
substantially as described.
8. As an article of manufacture, a yarn-holder adapted to be applied to a spindle,.
consisting of a tubular body having bobbin-holding devices and the lower split
portion, yarn-holding jaws on said body, the collar encircling the lower split portion
having the securing screw, weighted toggle arms connected to the collar and
operating on the movable yarn-holding jaw, and the spring arranged between the
collar and the yarn-holding jaw for holding it closed, substantially as described.
9. In a yarn-holder, the combination with two separable jaws, the upper one.
relatively smaller that the lower, and smaller than the base of the bobbin, and a
spring for holding said jaws together, whereby the jaws may be separated and the
bobbin removed by a single tool, substantially as described.
Dated this 15th day of August 1893
W. P. THOMPSON & BOULT,
Agents for the Applicants.