Improvements in Machines for Sewing on Shank Buttons.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Machines for Sewing on Shank Buttons.
We, THE SINGER MANUFACTURING COMPANY, of Kilbowie, Dumbartonshire,
Sewing Machine Manufacturers, and ROBERT ANDREW FERGUSON POLLOCK,
Mechanic in the employment of said Company, do hereby declare the nature of
this invention to be as follows:-
This invention relates to sewing machines for sewing on shank buttons such
as are secured on boot upper and anchor buttons sewn on to clothing, and it has
for its object to provide means for moving aside or shifting the position of the
button slide or holder after the sewing on stitches have been completed so as
to bring under the sewing needle the leather or fabric adjacent to the shank of
the button in order that a few barring stitches may be sewn therein clear of the
button shank, and the button may thus be more securely held on the work.
For that purpose an eccentric bush is fitted on the presser bar of the machine
within the lower button slide bracket by which the button slide is positioned, and
said bush is fitted with a short hand lever by means of which the eccentric bushi
may be turned to move the button slide and cause it to recede from or approach
the path of the needle so as to bring the button shank under the sewing needle
or move it clear thereof. The movement of the hand lever is limited by stops
which may be adjustable on a bracket piece secured on the presser bar. The
bracket with its stops is held by a screw pin or other device so that its position
may be adjusted in order to bring the stops into proper location for positioning
the button slide under the needle during the sewing on operation and clear of it
when the barring stitches are being made.
220
T
1000
WALLACE FAIRWEATHER,
Of the Firm of Cruikshank & Fairweather,
Chartered Patent Agents, 62, Saint Vincent Street, Glasgow,
Agent for the Applicants.
We, THE SINGER MANUFACTURING COMPANY, of Kilbowie, Dumbartonshire,
Sewing Machine Manufacturers, and ROBERT ANDREW FERGUSON POLLOCK.
Mechanic in the employment of said Company, 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 sewing machines for sewing on shank buttons such

page_text: as are secured on boot uppers and anchor buttons sewn on to clothing, and it has
for its object to provide means for moving aside or shifting the position of the
button slide or holder after the sewing on stitches have been completed so as
to bring under the sewing needle the leather or fabric adjacent to the shank of
the button in order that a few barring stitches may be sewn therein clear of the
button shank, and the button may thus be more securely held on the work.
The invention is illustrated by the accompanying drawings, Figure being a
front elevation, Figure 2 a side elevation, and Figure 3 a horizontal section of
part of a machine for sewing on shank buttons. Figure 4 is a detail.
In carrying out the invention an eccentric bush A is fitted on the presser bar B
of the machine within the lower button slide bracket C, as shown particularly
at Figure 4, by which the button slide 1) is positioned, and said bush A is fitted
with a short hand lever A¹ by means of which the eccentric bush A may be turned
to move the button slide D and cause it to approach or recede from the path of
the needle E so as to bring the button shank F under the sewing needle E, as
shown by the full lines, Figures 2 and 3, or move it clear thereof, as shown by
the dotted lines on these figures. The movement of the hand lever A is limited
by stops G which may be adjustable on a bracket piece G secured on the presser
bar B. The bracket G with its stops G¹ is held by a screw pin G2 or other device
so that its position may be adjusted in order to bring the stops G¹ into proper
location for positioning the button slide 1) under the needle during the sewing
on operation and clear of it when the barring stitches are being made.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:
1. In a machine for sewing on shank buttons, the provision of means for mov-
ing the button slide or holder to bring the button shank into or out of the path
of the sewing needle, substantially as described.
2. In a machine for sewing on shank buttons the combination with a movable
button holder or slide, of an eccentric bush centred on the presser bar and em-
braced by the lower bracket of the button slide, said bush being operated by a
lever handle and limited in its travel by stops, substantially as and for the pur-
pose set forth.
Dated this 19th dow
1
1000
WALLACE FAIRWEATHER,
Of the Firm of Cruikshank & Fairweather,
Chartered Patent Agents, 62, Saint Vincent Street, Glasgow,
Agent for the Applicants.