IMPROVEMENTS IN BUTTON HOLE STITCHING ATTACHMENTS FOR SEWING MACHINES
Year: 1874

page_text: LETTERS PATENT to Ramsay Cooke, of Beaufort Villas, North End,
Fulham, in the County of Middlesex, Gentleman, for the Invention
of "IMPROVEMENTS IN BUTTON HOLE STITCHING ATTACHMENTS FOR SEWING
MACHINES." -A communication from abroad by William Cooke, of
Galt, in the Province of Ontario, and Dominion of Canada,
PROVISIONAL SPECIFICATION left by the said Ramsay Cooke at the
Office of the Commissioners of Patents, with his Petition, on the
25th February 1874.
I, RAMSAY COOKE, of Beaufort Villas, North End, Fulham, in the
County of Middlesex, Gentleman, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN BUTTON HOLE STITCHING ATTACHMENTS
FOR SEWING MACHINES," a communication to me from abroad by William
Cooke, of Galt, in the Province of Ontario, and Dominion of Canada,
Gentleman, to be as follows:-
:-

page_text: needle bar to be operated, the said apparatus being arranged as will be
herein-after particularly described to cause a hook to pass down through
the throat plate and engage the thread immediately after the shuttle has
passed through the loop, draw it up through the button hole, and
present it to a pusher, which by a portion of said apparatus is caused to
carry the loop beyond the needle, and hold it until the needle goes down
through it and completes the stitch.
Figure 1 is a front elevation of the attachment; Figure 2 is a side
elevation, as seen looking in the direction of arrow 1; Figure 3 is a side
clevation, as seen looking in the direction of arrow 2; and Figure 4 is a
plan view.
Similar letters of reference indicate corresponding parts.
A represents a frame for supporting the apparatus above the table of
the machine; it is attached to the head of the sewing machine by
screws passing through the projections B. C is a cam plate, arranged
vertically and pivoted at the upper end D to a stud E, so as to oscillate
in two directions at right angles to each other. This plate extends down
to within a short distance of the machine table, and has a wide cam
groove F, in which is a switch or tongue G pivoted at the lower end H,
and having a stud pin I at the upper end projecting through a slot in
the plate, and having a spring J at the back of said plate arranged with
it to throw the tongue to the right, Figure 2, when said tongue is free
to be shifted. This vibrating plate C is employed to give motion to the
pusher which carries the loop from the hook to the needle; also for
releasing the looping hook, as will be described hereafter, by its lower
swinging end to which said devices are connected, and it is operated by
means of the needle bar of the sewing machine (shown dotted), the
angle plate K, the stud pin L, and the spring M and N. The angle
plate K is attached to the needle bar, which fits in its angle and receives
a screw through the slot O. The stud pin L is attached to one end of
the angle plate, so as to work in the slot F to swing the plate C as the
needle bar goes down by traversing the parts a, b, d, of the cam groove.
The spring M throws the plate back when the stud pin arrives at the
bottom of the groove. In the ascent of the needle bar and stud pin L
the latter pushes the tongue over so as to pass up through the part e of
the slot, and the spring J throws the tongue back as soon as the stud
pin passes above it ready to cause the stud to go down on the other side
and again throw the bar. C. The movement of the bar C at right angles

page_text: to the movement just above described is caused by the end of the stud
pin passing over the elevation P in the bottom of the groove, which
swings it one way against the springs N, which return it again as soon
as the stud pin has passed said elevation. This bar C carries an arm Q
which projects from a bracket R at is lower end, and this arm has a
stud pin S which works the vibrating lever T by moving forward and
backward in the slot U of said arm as the bar C moves, and this bar
carries at its end opposite the one having the slot the pusher V, which
takes the shuttle thread loop brought up through the throat plate by the
hook and carries it over the cloth, and holds it while the needle goes.
down, said pusher being pivoted at one end to the vibrating lever, and
working through the guide W in such relation to the hook o as to take
the loop from it to the needle. This hook is mounted in a stock X which
works in the slot y of the frame, and it is forced down to take the thread
immediately after the shuttle has passed through the loop by the
spring Z and lever a mounted on the angle plate K. The lever is
jointed to the head by a link &', which allows the head and hook to
remain up while the needle goes down, and the head is held up until
the proper time for it to go down by the arm c¹ which is attached to
bar d'arranged in the slot e' in the frame, and connected to the swinging
bar C, so that when said bar is pushed back by the stud L and pro-
jection P just after the needle bar begins to rise the arm c¹ will be
pushed from under the stock, letting it and the hook fall instantly; just
before they reach the end of their movement the arm f strikes a roller g
in the lower end of an arm / projecting from bar d', which swings the
hook forward at the lower end under the thread, so as to insure the
catching of it when said hook goes back. The hook is mounted in its
head X so as to allow it to be thus swung forward. It is raised up again
to bring the thread up through the nipplej of the throat plate by the
pini on the plate K. The loop thus brought up comes in front of the
notched end of the pusher, and is immediately pused forward under
the needle 7, the pusher being set in motion during the first portion of
the downward movement by the stud pin L acting in the part a of the
As soon as the needle has passed down into the loop the stud
pin L arrives in the part d of the cam, and the pusher returns to the
place of starting ready for the next operation. The bar d¹ is so connected
to the bar C that while it is pushed in the direction to withdraw the
arm c¹ from the hook stock as before described, said bar dis not moved
in the other direction in which said bar C works. The attachment is
cam.
.

page_text: also useful for embroidering on edges without change, and I propose to
use it for that purpose.
Having thus described the Invention, I claim as new and desire to
secure by Letters Patent,-
1. The mechanism for operating the pusher, comprising the angle
plate K attached to the needle bar, the stud pin on the angle bar, the
swinging cam plate C, tongue G, spring M, arm Q, and rock lever T
on the frame A, when constructed and combined substantially as
specified.
2. The looping hook stock arranged in the slot y of plate A, and 1
provided with the trip holding arm c¹ on the frame A, and connected
by the arm a¹ and link b¹ with the angle plate K on the needle bar, sub-
stantially as specified.
3. The cam plate C provided with arm c¹, bar d³, springs N, and pro-
jection P, for releasing the hook stock X in the manner described.
4. The combination as set forth of arm f¹ of the hook stock with
arm ŉ of bar ď³ for turning the hook.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Ramsay Cooke in the Great Seal Patent Office on
the 22nd August 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RAMSAY
COOKE, lately of Beaufort Villas, North End, Fulham, but now of
No. 82, Earl's Court Road, in the County of Middlesex, Gentleman, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fifth day of February, in the year of
our Lord One thousand eight hundred and seventy-four, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Ramsay Cooke, Her special licence
that I, the said Ramsay Cooke, my executors, administrators, and assigns,
or such others as I, the said Ramsay Cooke, my executors, admini-
strators, and assigns, should at any time agree with, and no others,

page_text: from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,
within. the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN BUTTON
HOLE STITCHING ATTACHMENTS FOR SEWING MACHINES," a communication to
me from abroad by William Cooke, of Galt, in the Province of Ontario,
and Dominion of Canada, Gentleman, upon the condition (amongst
others) that I, the said Ramsay Cooke, my executors or administrators,
by an instrument in writing under my, or their, or one of their hands
and seals, should particularly describe and ascertain the nature of the
said Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters

page_text: to within a short distance of the machine table, and has a wide cam
groove F, in which is a switch or tongue G pivoted at the lower end H
and having a stud pin I at the upper end projecting through a slot in
the plate, and having a spring J at the back of said plate, arranged with
it to throw the tongue to the right, Figure 2, when said tongue is free
to be shifted. This vibrating plate C is employed to give motion to the
pusher which carries the loop from the hook to the needle; also for
releasing the looping hook, as will be described hereafter, by its lower
swinging end, to which said devices are connected, and it is operated by
means of the needle bar of the sewing machine (shewn dotted), the
angle plate K, the stud pin L, and the spring M and N. The angle
plate K is attached to the needle bar which fits in its angle, and receives
a screw through the slot O. The stud pin L is attached to one end of
the angle plate, so as to work in the slot F to swing the plate C.as the
needle bar goes down by traversing the parts a, b, d, of the cam groove.
The springs M throws the plate back when the stud pin arrives at the
bottom of the groove. In the ascent of the needle bar and stud pin L
the latter pushes the tongue over so as to pass up through the part e of
the slot, and the spring J throws the tongue back as soon as the stud pin
passes above it, ready to cause the stud to go down on the other side and
again throw the bar C. The movement of the bar C at right angles to
the movement just above described is caused by the end of the stud pin
passing over the elevation P in the bottom of the groove, which swings
it one way against the springs N, which return it again as soon as the
stud pin has passed such elevation. This bar C carries an arm Q which
projects from a bracket R at its lower end, and this arm has a stud pin S
which works the vibrating lover T by moving forward and backward in
the slot U of said arm as the bar C moves, and this bar carries at its end
opposite the one having the slot the pusher V which takes the shuttle
thread loop brought up through the throat plate by the hook and carries
it over the cloth, and holds it while the needle goes down, said pusher
being pivoted at one end to the vibrating lever, and working through
the guide W in such relation to the hook o as to take the loop.from it to
the needle. This hook is mounted in a stock X which works in the
slot y of the frame, and it is forced down to take the thread immediately
after the shuttle has passed through the loop by the spring Z and
lever a mounted on the angle plate K. The lever is jointed to the head
by a link b' which allows the head and hook to remain up while the
needle goes down, and the head is held up until the proper time for it to

page_text: 4. The combination as set forth of arm f¹ of the hook stock, with
arm h, of bar d, for turning the hook.
In witness whereof, I, the said Ramsay Cooke, have hereunto set
my hand and seal, this Twenty-second day of August, in the year
of our Lord One thousand eight hundred and seventy-four.