Button Sewing Attachment, and Automatic Stop Motion, for ordinary Sewing Machines, with device for holding Buttons while being Sewn.
Year: 1896

page_text: Date of Application, 29th June, 1896
Complete Specification Left, 29th Mar., 1897-Accepted, 29th June, 1897
PROVISIONAL SPECIFICATION.
Button Sewing Attachment, and Automatic Stop Motion, for ordinary
Sewing Machines, with device for holding Buttons while
being Sewn.
JOHN CHIRREY, Sewing Machine Maker, 20 Brunswick Street, Glasgow, North
Britain, do hereby declare the nature of this invention to be as follows:-
An attachment for fixing to ordinary Sewing Machines, for Sewing Buttons on
Garments, with automatic Stop Motion for regulating number of Stitches, and device,
or Adjustable Foot, for holding buttons in position while being sewn.
1st. My invention consists in affixing to revolving shaft of Machine, a suitable
Cam, for giving a reciprocating Motion to presser Bar, with a series of Levers and
Connecting Rod.
2nd. In having a Worm and Wheel, with Cam and lever motions, for regulating
number of Stitches, also starting and stopping Machine.
3rd. In having a suitable device, or Adjustable Foot, for receiving and holding
Buttons while being sewn.
Button Sewing Attachment, and Automatic Stop Motion, for ordinary
Sewing Machines, with device for holding Buttons while
being Sewn.
I, JOHN CHIRREY, 20 Brunswick Street, Glasgow, North Britain, Sewing Machine
Maker, 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 follow-
ing statement:-
An attachment to an ordinary sewing machine, for sewing buttons on garments,
with device, or foot for holding buttons in position while being sewn. And automatic
stop motion, for.regulating number of stitches in each hole of button. My invention
consists, in affixing to revolving shaft of sewing machine, a suitable Cam for giving a
reciprocating motion to presser bar, with a series of levers and connecting rod. In
having a suitable foot or device, for receiving and holding buttons while being sewn.
In having a worm and wheel with cam and lever motions for regulating number of
Stitches and stopping machine.
The object of my invention is to construct machinery whereby buttons may be
stitched on to made-up garments or other textile materials in a more ready and
efficient manner than heretofore.
And in order that my Invention may be properly understood, I have hereunto
appended a sheet of explanatory Drawings in which Figure 1 is an elevation and
Figure 2 a plan of so much of a sewing machine as is necessary to illustrate my
improvements. Figure 3 is a view of the presser and needle bars to an enlarged
scale. Figure 4 is a view of the connecting rod F as broken, with its connections.

page_text: Figure 5 is an inverted plan of the presser foot slightly tilted, Figure 6 being a plan
of same, and Figure 7 is a view of the bracket O and lever L.
Referring to these Figures. According to my Invention I affix to revolving shaft
A¹ of sewing machine a grooved reversing Cam A, and on arm of machine a bracket
B for carrying a lever C with slot on top end for receiving a pinching stud E, and on
bottom end a feather or stud pin c for working into the groove of the Cam A, and on
top of presser bar A2 I attach a lever D, with ball stud B', the connecting rod F being
jointed to studs E and B¹ conveys the reciprocating motion from Can A and lever Č
to lever D and presser foot G, and. by raising or lowering the end of connecting rod F
by stud E in lever C, the foot will be made to travel a greater or less distance so as to
suit holes in buttons and holding same in position while being sewn.
As shewing more particularly by Figures 5 and 6 the presser foot G is formed with
a jaw g to receive the end of the presser bar A2 to which it is secured by a screw g¹, and
the part g2 which holds the button is formed of annular shape with a break or
opening and is recessed on its under surface all round so as to receive and hold a
button and by its motion to reciprocate it under the needle so that the needle enters
each hole alternately. The presser bar being raised for the insertion of the button by
any of the ordinary devices used for this purpose and not illustrated in the drawings.
For starting and stopping machine I use what are known as the friction wheels Hand
I the one H secured on the shaft. A while the other I is loose on same and receives
its motion by any prime mover by a band running in the groove I', but for automati-
cally starting and stopping machine, and for regulating the number of revolutions
or stitches I affix a bracket O to end of machine as shown for carrying the gear wheel
M formed with disc M¹, the lever L fuleruned at L2 and fitted with the spring R,
also the lever K fulerumed on the bracket at S. A worm wheel N secured on the
shaft A¹ gears with the toothed wheel M carried by the bracket O, said wheel M
having the disc M¹ formed with a wedge-shaped or angled projection m which
engages at each rotation with the end of the lever L at L, which is formed at its
upper end of a corresponding angle or wedge shape and pressing it back against the
the power of the spring R, releases the lever K which it has held locked at K¹. To
start the machine the lever K is pulled down against the spring P by a pedal attach-
ment to the eye K2 or other means, which movement withdraws one limb k of its
forked end out of contact with the wheel H, and by means of its other limb ¹ presses
the friction wheel I into driving contact with wheel H. The machine stops auto-
matically when the disc projection m in its rotation comes into contact with the top
of lever L and presses the part L' out of the notch K¹ in the small plate secured to
the lever K which is then acted on by the spring P and while one limb withdraws the
wheel I out of frictional contact with the wheel H the other limb comes against
this wheel H to stop its rotation.
Having now particularly described and ascertained the nature of my said Invention,
and in what manner the same is to be performed, I declare that what I claim is:-
1st. The apparatus for giving motion to presser bar A2, by which button and
garment receive reciprocating motion consisting of Cam A, bracket B, levers C and
D, stud E, connecting rod F substantially as set forth.
2nd. The recessed foot G attached to presser bar substantially as and for the
purpose set forth.
3rd. The bracket O, gear wheel M, disc with projection m, levers L and K, and
springs R and P acting in conjunction with worm N, all arranged and acting sub-
stantially as and for the purpose set forth.
Dated this 26th day of March. 1897.