Improvements in Button-hole Scissors.
Year: 1891

page_text: Date of Application, 24th Sept., 1891
Complete Specification Left. 13th May. 1892-Accepted. 6th Aug. 1892
PROVISIONAL SPECIFICATION.
Improvements in Button-hole Scissors.
MARTIN CARMODY Tailors Cutter 49 St. Geo. Terrace Harrington Road
Workington do hereby declare the nature of this invention to be as follows:-
--
I carrying out my invention 1 attach a pin and bolt or nut to the handle of
scissors used for cutting button holes. The nut or bolt to screw up and down on
the pin when the bolt or nut is screwed upwards and been stationed between the
handles it will prevent the handles from closing or coming together and conse-
quently shortens the cutting length of the blades, correspondently. In this
manner any required length of hole may be regulated. The nut and pin are to be
attached to the handle at a convenient distance from the pivot which join the
scissors together, and the opposite half of the scissors to that in which the pin and
nut or bolt are attached I provide with an arm or construct it to a suitable shape
so that the arm will come aginst the nut or bolt and in this manner the scissors is
prevented from opening more than it may be required.
Dated this 22nd day of September 1891.
MARTIN CARMODY.
COMPLETE SPECIFICATION.
Improvements in Button-hole Scissors.
I, MARTIN CARMODY, of 49 St. George's Terrace, Harrington Road,
Workington, in the County of Cumberland, Tailors' Cutter, 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 :-
This invention relates to improvements in button-hole scissors, by means of
which they may be adjusted to cut any length of button-hole, or may be arranged
to act as ordinary scissors.
And in order that my invention may be fully understood and carried into
practice I will now proceed to describe the same with reference to the accom-
panying 2 sheets of drawings in which
Figure 1 shows the scissors arranged to cut throughout the entire length of their
blade in the ordinary manner;
Figure 2 shows them arranged as button-hole scissors, and
Figure 3 also shows them as button-hole scissors, but with the cutting length of
the blade adjusted to cut a button-hole of a given length.
Figs. 4 to 6 shew the adjusting device on an enlarged scale.
The blades a, a, are cut away at their lower ends at b so as to receive the edge
of the material, in which button-holes are to be cut, as is usual with button-
hole scissors. A screw stud c is rigidly secured as shewn within the recess in
the blade a¹ and is provided with a nut d of peculiar form. The centre portion
of the said nut is polygonal in form and is placed eccentrically to the axis of
the stud c on which it turns so that when the said polygonal portion overhangs
the sharp corner e of the blade a as shewn at Figure 1, a semi-rotation of the
nut turns the said overhanging polygonal portion away from the corner e and
allows the scissors to be opened to their full extent as shewn at Figure 2.
When it is desired to employ the scissors for cutting in the ordinary manner
throughout the whole length of their blades, the nut d is screwed right home
on the stud c so that the polygonal portion overhangs the corner e as shewn at
Figure 1. By this means the blades cannot be opened wider than is shewn, by
ID 37

page_text: As
reason of the corner e coming in contact with the nut d, and the recesses 6 do not
come into use. When it is desired to cut button-holes the nut d is rotated so as to
allow of the scissors opening to their full extent as shown at Figure 2.
however, it is necessary to provide a stop so as to limit the closing movement of
the blades in order to regulate the length of button-hole to be cut, the nut d is
screwed along the stud c until it occupies the proper position to stop the blade a at
the desired point as shown at Figure 3.
The nut & is only screwed through a portion of its bore, the outer end of which
is plane and of slightly larger diameter. The end of the stud c is slightly riveted
over to prevent the nut from working off.
It is obvious that the nut d and stud o may be arranged on either the handle or
the blade side of the pivot, with equally satisfactory results.
In some cases I find it advisable to duplicate the hereinbefore described adjusting
device by placing a stud and nut on each side of the pivot upon which the scissor-
blades work, that in front being employed to prevent the scissors opening and that
at the back to prevent their closing or vice versa.
When applied to small scissors I arrange the studs to screw into the scissor
handle or blade as well as into the nut and slightly rivet over their ends to prevent
their removal. The outer end of the hole in the handle or blade is enlarged in
diameter so as to receive the riveted-over end of the stud when the same is screwed
in to prevent the closing of the scissors beyond a given point.
Lock nuts may be applied to the nut and stud in order to prevent their shifting
while the scissors are in use, or a collar may be formed in the stud for the nut to
bed against when it is employed to turn the stud. This construction allows of the
nut being made very small. When applied to strong and large scissors the nut
is formed in one piece with the stud which works in a tapped hole in the
scissors.
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
(1) Means of converting button-hole scissors into ordinary scissors, consisting
of the eccentric nut d so arranged on the stud c as to form in conjunction with
the corner e a stop whereby the extent of the opening of the scissors may be
regulated, substantially as herein described and illustrated in the accompanying
drawings.
(2) Means of limiting the closing of the scissor-blades a, a¹, to regulate the
length of the button-hole cut consisting of the nut d and stud c substantially as
herein described and illustrated in the accompanying drawings.
(3) The modified arrangement of the stud and nut whereby the former screws in
and out of the scissor-blade or handle, and the nut is either rigidly attached thereto
or screws upon the said stud substantially as herein described.
(4) The placing of duplicate adjusting devices upon opposite sides of the pivot
upon which the scissor-blades work substantially as herein described.
Dated this 15th day of May 1892.
Dated this 13th day or
May 1892.
CASTLE SMITH,
"Invention" Office, 54, Fleet Street, London, E.C.,
Agent for the Applicant.