Improvements in or relating to Spindles and Bobbins for Spinning, Twisting, and like Machines.
Year: 1889

page_text: Date of Application, 18th Mar., 1889
Complete Specification Left, 4th Oct., 1889-Accepted, 9th Nov.. 1889
PROVISIONAL SPECIFICATION.
Improvements in or relating to Spindles and Bobbins for Spinning,
Twisting, and like Machines.
A communication from JOHN BOWNESS MAWSON, of the City and County of
Philadelphia, in the State of Pennsylvania, United States of America, manu-
facturer.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex, M.I.M.E.,
do hereby declare the nature of this invention to be as follows:
This invention relates to spindles and bobbins used in spinning machines for
spinning all kinds of yarns and other analogous material.
The object of the invention is to provide means whereby the bobbin when revolved
by its spindle is held in contact with the same; and thereby prevent any raising or
jumping of the bobbin from its rest when both are running at a high speed.
Heretofore the bobbin rest of the spindle has been provided with two pins projecting
a short distance above the surface of the bobbin rest, which engaged with grooves
provided in the lower head or disc of the bobbin. This construction is very objection-
able as the bobbin is liable to rise or jump from its seat whereby the pins disengage
with the grooves provided in the bobbin head, leaving the bobbin either at a standstill
when the yarn will slacken and kink, or the bobbin is rotated irregularly causing
great waste of yarn and labor. A further objection is that the pins and edges of the
grooves wear out very quickly owing to the rising and slipping of the bobbin on
its spindle and bobbin rest. Many attempts have been made to overcome these
objections but so far as I am aware no one has met with success. Some have designed
devices such as springs and spring latches but they are liable to get out of order
and owing to their great expense have not been brought into actual use; others
have provided dovetailed or T shaped studs on the bobbin rest of the spindle which
engage with similar shaped grooves in the lower head of the bobbins, but as the
dovetailed or other grooves are difficult to form and as they are formed in the wooden
head of the bobbin, are liable to wear out quickly have not proved practical.
All these objections are avoided by this improved device consisting simply of hooks
provided in the bobbin rest of the spindle and also in grooves of the lower head or disc
of the bobbin which hooks interlock with each other, when the spindle is revolved by
its whirl from any suitable power by which a uniform twist or spinning of the yarn
onto the bobbin is obtained.
The bobbin rest is provided with two hooks diametrically opposite hooks arranged
equidistant from the centre of the spindle and opposite each other.
The bobbin with its lower head or disc is provided with two grooves formed con-
centric to the spindle which grooves have a sufficient depth to clear the hooked studs
or hooks of the bobbin rest. In these grooves and driven into the head are two other
hooks the hooked extremities of which are flush with the surface of the bobbin head
or disc.
The grooves of the bobbin head are made long enough to allow a free passage of the
entire length of the hooks of the rest or seat.
It is obvious that there may be modified forms of bobbin head. In one of these
modifications the head is provided with similar grooves to those already described but
instead of having two hooks driven into the head the head has secured to it by means
of screws a metal plate provided with slots through which the hooks of the bobbin rest
are passed and brought into a locking position by slightly turning the bobbin or by
applying power to the whirl.

page_text: The operation is as follows: The empty bobbin being slipped onto the spindle and
power applied to the whirl the hooks of the bobbin rest and the books or plate of the
bobbin will at once interlock and both hooks or hooks and plate will be in contact with
each other until the machine or motive power is stopped, when the bobbin by its
momentum is revolved further around the spindle and thus disengages the respective
hooks so that the attendant in charge has only to slip off the spindles the filled bobbins
and onto the spindles the empty bobbins for another filling of yarn or other analogous
material.
It will be readily understood that as long as power is applied to the whirl the
bobbin is prevented from rising or jumping from its seat and is kept in uniform
contact throughout the filling thereby avoiding much waste of yarn or other material
to be spun or twisted as well as labor and stoppage of the machine.
Dated this 18th day of March 1980
.
COMPLETE SPECIFICATION.
Improvements in or relating to Spindles and Bobbins for Spinning,
Twisting, and like Machines.
A communication from JOHN BOWNESS MAWSON, of the City and County of
Philadelphia, in the State of Pennsylvania, United States of America, Manu-
facturer.
[, ALFRED JULIUS BOULT of 323 High Holborn, in the County of Middlesex,
M.I.M.E., 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:-
My invention relates to spindles and bobbins used in spinning machines for spinning
all kinds of yarns and other analogous material.
The object of my invention is to provide means of simple construction, whereby the
bobbin, when revolved by its spindle, is held in contact with the same; and which
means prevent any raising or jumping of the bobbin from its rest when both are
running at a great speed.
Heretofore the bobbin rest of the spindle was provided with two pins projecting a
short distance above the surface of the bobbin rest, and which pins engaged with
grooves provided in the lower head or disc. of the bobbin. This construction is
very objectionable as the bobbin is liable to raise or jump from its seat whereby the
pins disengage with the grooves, provided in the bobbin head, leaving the bobbin
either at a standstill, whereby the yarn is caused to slack and kink, or the bobbin is
rotated irregular, giving great waste of yarn, labor, and other trouble. A further
objection is that the pins and edges of the grooves wear out so easily, which is also
due to the raising and slipping of the bobbin on its spindle and. bobbin rest. Many
attempts have been made to overcome these objections but so far as I am aware no one
has met with success. Some have designed devices such as springs and spring latches
but as they are liable to get out of order and owing to their great expense, the same
have not been brought into actual use; others have provided dove-tailed or T-shaped
studs on the bobbin rest of the spindle, which engage with similar shaped grooves in
the lower head of the bobbins, but as the dove-tailed or other grooves are difficult to
form and which, as they are formed in the wooden head of the bobbin are liable to
wear out easily, also they are not practical.
All these objections are avoided by my improved device consisting simply of hooks
provided in the bobbin rest of the spindle and also in grooves of the lower head or
disc of the bobbin which hooks interlock with each other, when the spindle is revolved
by its whirl from any suitable power, by which a uniform twist or spinning of the
yarn onto the bobbin is obtained.

page_text: My invention will be more fully understood taken in connection with the accom-
panying drawings wherein I have fully illustrated the same, and in which
Figure 1, is an elevation of a spindle with a bobbin applied thereto, a portion of the
lower head being broken away to show the interlocking of two hooks.
Fig. 2, is an elevation of a spindle showing the whirl, and the bobbin rest provided
with two books.
Fig. 3, is a plan view of the lower head of the bobbin showing concentric grooves
each provided with a hook.
Fig. 4, is a perspective view showing a portion of spindle with its bobbin rest pro-
vided with two hooks and also a portion of a bobbin provided with concentric grooves
each having secured therein a hook.
Fig. 5, is a plan view of the bobbin rest showing the hooks in position.
Fig. 6, is an elevation of a part of a bobbin, the lower head being provided with a
circular metal plate, having two concentric grooves, which plate forms a substitute for
the two hooks as shown in the former views, and
Fig. 7, is a plan view of the lower head of a bobbin provided with a metal plate as
shown in fig. 6.
Referring now to the drawings for a further description of my invention A is the
spindle of the usual form; a is the whirl by which the spindle A, and with it the
bobbin B is revolved as readily understood; a¹ is the bobbin rest or seat secured
to the spindle A, and which rest a¹ is provided with two hooks a arranged on the
same radius from the centre of the spindle A, and opposite each other as shown in
Figs. 4 and 5.
The bobbin B with its lower head or disc b, is provided with two grooves b²
formed concentric to the spindle A as shown in figs. 3 and 4, which grooves b
have a sufficient depth to clear the hooked studs or hooks a of the bobbin rest a¹.
In these grooves 62, and driven into the head bare hooks b¹, the hooked extremities
of which are flush with the surface of the bobbin head or disc b.
The grooves of the bobbin head are made long enough to allow a free passage
of the entire length of the hooks a² of the rest or seat a¹, as will be readily seen by
reference to figs. 1, 3, 4 and 7.
In figs. 6 and 7, I have shown a modified form of bobbin head. In this instance
the head is provided with similar grooves 6 as already described, but instead of
having two hooks 2 driven into the head, the same has secured to it by means of
screws a metal plate having slots through which the hooks a² of the bobbin
rest a are passed, and brought into a locking position by slightly turning the
bobbin or by applying power to the whirl a, as shown in fig. 6.
The operation is as follows: The empty bobbin B being slipped onto the spindle A
in a well understood manner, and power applied to the whirl a, the hooks a³ of the
bobbin rest al and the hooks or plate 63 of the bobbin B, will at once interlock as
shown in figs. 1 and 6, and both hooks or hook and plate will be in contact with each
other, until the machine or motive power is stopped, when the bobbin by its momentum
is revolved further around the spindle A and thus disengaging the respective hooks,
leaving the attendant-in-charge to only slip off the spindles the filled bobbins and
onto the spindles the empty bobbins for another filling of yarn or other analogous
material.
It will be readily understood that as long as power is applied to the whirl a, the
bobbin B is prevented from raising or jumping from its seat a¹ and is kept in
uniform contact throughout the filling thereof, thus avoiding much waste of yarn
or other material to be spun or twisted, as well as labor and stopping of the
machine.
Having now particularly described and ascertained the nature and objects of my
said invention and in what manner the same is to be performed, as communicated
to me by my foreign correspondent I declare that what I claim is
--
1. A spinning machine spindle having a bobbin rest provided with one or more
hooks in combination with a bobbin in the lower head of which is formed one or

page_text: more concentric grooves which conceal two hooks secured to said-bobbin, substantially
as shown and described.
2. A spinning machine spindle having a bobbin rest provided with two hooks-in.com-
bination with a bobbin, in the lower head of which is formed two concentric grooves,
and to which bobbin head is secured a metal plate having two concentric slots,
said plate provided to keep the bobbin in contact with the bobbin seat, substantially
as shown and described.
Dated this Thirteenth day of September A.D. 1889.
W. P. THOMPSON & BOULT,
Agents for the Applicant.