IMPROVEMENTS IN WINDING ATTACHMENTS AND SHUTTLES FOR SEWING MACHINES
Year: 1876

page_text: LETTERS PATENT to John Morton, of Glasgow, in the County of Lanark, North
Britain, Sewing Machine Maker, for the Invention of "IMPROVEMENTS IN
WINDING ATTACHMENTS AND SHUTTLES FOR SEWING MACHINES."
PROVISIONAL SPECIFICATION left by the said John Morton at the Office of
the Commissioners of Patents on the 29th August 1876.
JOHN MORTON, of Glasgow, in the County of Lanark, North Britain, Sewing
Machine Maker "IMPROVEMENTS IN WINDING ATTACHMENTS AND SHUTTLES FOR
SEWING MACHINES."
This Invention relates to improved apparatus to be attached to a sewing machine
for winding the shuttle thread, and to improved shuttles.
The winding apparatus is for winding the thread in the cop form, and comprises
a small bracket which can be easily attached when required to any ordinary sewing
machine, and which carries all the winding details. The bracket is formed with
two bearings, in one of which thero is held a tubular spindle or elongated boss
having fast upon it a pulley with a rubber rim to be driven frictionally by the fly
or hand wheel of the sewing machine. The winding spindle passes through the
second bearing and through the boss of the pulley, being fitted to the boss so as,
whilst being turned by it, to be capable of moving longitudinally through it. One
end of the winding spindle is reduced to the thickness of a wire for the thread to
be wound on it, and it passes through a hollow cone, which gives a conical form to
the cop end and which is slit for the entrance of the thread. The thread is guided
or traversed up and down the slit of the hollow cone by a small lever worked by a
cam on a pulley which turns on a pin or stud, and is formed with a rubber rim, so
as to be frictionally driven by a small pulley attached to the pulley on the winding
spindle. On a part of the winding spindle between the bearings thero is fixed
a collar, against which there bears a curved lever acted on by a spring, and this
spring by means of the curved lever applies the requisite uniform resistance to the
longitudinal movement of the spindle whilst the cop is being formed. A movable
cop bottom is set on the spindle before beginning to wind, and is withdrawn with
the finished cop and then replaced on the spindle for the next cop.
The improved shuttle is constructed for cops such as are wound by the apparatus
herein-before described, and is contrived so as to contain as large a cop as possible.

page_text: The shuttle is fitted with a lid to contain the cop, such lid being hinged to the
shuttle near its heel, and being held when closed by a small spring hook The
thread is drawn from the heel of the cop and first passes through a small eye fixed
to the under side of the lid beyond the hinge. The thread next passes between the
lid and a small plate at the under side and front end of the lid, and round a pin or
rivet fixed to the lid and passing through the plate; this plate is held by a wire
arm which being fixed near the heel end of the lid and exerting a spring pressure
causes the plate to compress the passing thread more or less, and theroby regulate
the tension, the plate at the same time removing curls from the thread. A small
sliding clasp connects the wire arm of the tension plate to a fixed wire, and as this
clasp is moved backwards or forwards it increases or diminishes the tension. A slot
in the side of the shuttle admits of the clasp being adjusted without opening the
lid. The parts described being on the inside of the lid are entirely within the
shuttle when the lid is closed.
The thread on leaving the tension plate passes out by a notch in the edge of the
shuttle, and finally under a common form of external spring guide.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Morton in the Great Seal Patent Office on the 26th February
1877.
JOHN MORTON, of Glasgow, in the County of Lanark, North Britain, Sewing
Machine Maker. "IMPROVEMENTS IN WINDING ATTACHMENTS AND SHUTTLES FOR
SEWING MACHINES."
My said Invention relates to improved apparatus to be attached to a sewing
machine for winding the shuttle thread, and to improved shuttles for sewing
machines.
The object of my improved winding attachment is to enable the user of a sewing
machine to wind the thread in the cop forin, so as to have the advantage which the
cop form gives of getting a large quantity of thread into the shuttle without having
to purchase at extra cost the thread already wound in the cop form. And I attain
the said object by means of the simple apparatus or mechanism herein-after
particularly described, with reference to the accompanying Drawings, in which
Figure 1 is a plan and Figures 2 and 3 are end and side elevations.
The cop-winding mechanism is carried by a small bracket 4 which can be easily
attached to any ordinary sewing machine by means of a screw entered down through
its bottom part at 5. The bracket 4 is formed with two bearings 6, 7, in one 6 of
which there is held a tubular spindle or elongated boss 8 having fast on it a pulley 9
fitted with a rubber im to be driven fictionally by the fly or hand wheel of the
sewing machine, the bracket 4 being fixed on the machine in such a position as to
have the pulley 9 sufficiently close to the fly wheel. The winding spindle 10 passes
through the second bearing 7 and through the boss 8 of the pulley 9 being fitted to
the boss with a flat side (or an equivalent) so as whilst being turned by the pulley
to be capable of moving longitudinally through it. A part of the winding spindle 10
at its inner end 11 is reduced to the thickness of a wire for the thread 12 to be
wound on it, and it passes through a hollow cone 13, which gives a conical form to
the cop end, and which is slit at one side for the entrance of the thread. The
cone 13 is formed on or fixed to a suitably projecting part of the bracket 4. The
thread is guided or traversed up and down the slit of the hollow cone 13 by a small
lever 14 fast on a short spindle held by the bracket, and having also fast on it
another lever 15 which by a spring 16 is made to bear against a cam wheel 17;
this cam wheel 17 is driven at a suitable speed either by toothed or frictional
gearing from the boss of the first-driven pulley 9. In the Drawing the wheel 17 is
shown as having on it a round rubber ling, which is acted on frictionally by the

page_text: concave periphery of a boss on the first driven pulley 9. On a part of the winding
spindle 10, between the bearings 6 and 7, there is fixed or formed a rounded collar
or boss 18 against which there bears a curved lever 19 acted on by a coiled spring
contained in the hollowed bearing 20, in which the lever is centered. The spring
by means of the curved lever 19 applies in a sufficiently uniform manner the
requisite resistance to the longitudinal movement of the winding spindle 10 during
the time that the cop is being formed. When begining to wind the end of the
thread is caught in a small nick formed near the end 11 of the spindle. A
button 22 is formed on the outer end of the winding spindle 10 for moving it by
hand, and a small lever 23 is provided for starting the spindle outwards when about
to remove a cop.
My improved shuttle is constructed for cops such as are wound by the apparatus
herein-before described, and is contrived so as to contain as large a cop as possible.
The shuttle is shown in side view in Figure 4 of the accompanying Drawings and
in longitudinal section parallel to the lid in Figure 5, whilst Figure 6 is an edge
view of the lid as detached The shuttle is fitted with a lid 24 to retain the cop,
such lid being hinged to the shuttle near its heel 25, and being held when closed by
a small spring hook 26. The thread is drawn from the heel of the cop and first
passes through a small eye 27 fixed to the under side of the lid beyond the hinge;
the thread next passes between the lid and a small plate 28 at the under side and
front end of the lid and round a pin or rivet fixed to the lid and passing through
the plate; this plate is held by a wire arm 29 which being fixed near the heel end
of the lid and exerting a spring pressure causes the plate to compress the passing
thread more or less, and thereby regulate the tension, the plate at the same time
removing curls from the thread. A small sliding clasp 30 connects the wire arm of
the tension plate to a fixed wire, and as this clasp is moved backwards or forwards
it increases or diminishes the tension. A slot in the side of the shuttle admits of
the clasp being adjusted without opening the lid. The parts described being on the
inside of the lid are entirely within the shuttle when the lid is closed. The thread
on leaving the tension plate passes out by a notch in the edge of the shuttle, and
finally under a common form of external spring guide 31.
Having thus particularly described my said Invention and the manner of
performing the same, I have to state that I do not restrict myself to the precise
details herein described or delineated, but that what I believe to be novel and
original, and claim as the Invention secured to me by the herein-before in part
1ecited Letters Patent is,-
1. The hollow-bossed pulley (9), the longitudinally movable winding spindle (10)
having a reduced part (11), the hollow cone (13), and the traverse mechanism (14,
15, 16, 17,) all arranged on a bracket as an attachment for a sewing machine, and
to be driven by the fly wheel thereof, as herein-before described.
2. The curved and spring-actuated lever (19), acting as and for the purpose
herein-before described.
3. The bottom (22) on the end of the winding spindle (10) and the lever (23),
arranged as and for the purposes herein-before described.
4. The driving of the cam wheel (17) for operating the traverse mechanism from
the pulley (9) on the winding spindle, as herein-before described.
5. The combining of the parts of sewing-machine shuttles for cops in the
improved manner herein-before described with reference to Figures (4, 5, 6) of the
accompanying Drawings.
•
In witness' whereof, I, the said John Morton, have hereunto set my hand and
seal, this Twenty-fourth day of February, in the year of our Lord One
thousand eight hundred and seventy-seven.