IMPROVEMENTS IN SEWING MACHINES, AND IN THE MACHINERY OR APPARATUS CONNECTED THEREWITH
Year: 1865

page_text: LETTERS PATENT to Duncan McGlashan, junior, of Glasgow, in the
County of Lanark, North Britain, for the Invention of "IMPROVEMENTS
IN SEWING MACHINES, AND IN THE MACHINERY OR APPARATUS CONNECTED
THEREWITH."
PROVISIONAL SPECIFICATION left by the said Duncan McGlashan at the
Office of the Commissioners of Patents, with his Petition, on the 20th-
June 1865.
I. DUNCAN M°GLASHAN, junior, of Glasgow, in the County of Lanark,
North Britain, do hereby declare the nature of the said Invention of "IM-
PROVEMENTS IN SEWING MACHINES, AND IN THE MACHINERY OR APPARATUS CON-
NECTED THEREWITH," to be as follows, that is to say :-
This Invention, which relates to certain improvements in sewing machines,
has reference principally to the application of a feed motion by which the
cloth being sewn is actuated in every requisite direction, so that any pattern
may be produced on the cloth having circles or parts of circles and any portions
of curved or straight lines thereon. The machinery by which this varied feed

page_text: motion is obtained is actuated by a hand wheel on the end of a shaft, on
which shaft bevil wheels are fitted gearing into corresponding wheels or
pinions on two other shafts; these shafts again having wheels on them
gearing into similar wheels on the rod or bar carrying the needle, and into
another similar wheel carrying the race in which the shuttle is contained.
The use of the system of shafts and wheels is that the needle, shuttle, and
feed may be moved simultaneously. When used for working curved stitching
the feed motion is actuated by the hand wheel at any requisite speed necessary
for producing the pattern, and when straight line stitching is being worked,
the feed motion is set in the direction necessary for sewing the cloth. It is
obvious that this system of feed motion is applicable to sewing machines
generally.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Duncan McGlashan in the Great Seal Patent Office on the
19th December 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, DUNCAN
M GLASHAN, junior, of Glasgow, in the County of Lanark, North Britain,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twentieth day of June, in the year of our Lord One
thousand eight hundred and sixty-five, in the twenty-ninth year of Her reign,
did for Herself, Her heirs and successors, give and grant unto me, the said
Duncan McGlashan, Her special license that I, the said Duncan McGlashan,
my executors, administrators, and assigns, or such others as I, the said
Duncan McGlashan, my executors, administrators, or assigns, should at any
time agree with, and no others, 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
SEWING MACHINES, AND IN THE MACHINERY OR APPARATUS CONNECTED THEREWITH,"
upon the condition (amongst others) that I, the said Duncan M'Glashan,
by an instrument in writing under my hand and seal, 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 imme-
diately after the date of the said Letters Patent.

page_text: NOW KNOW YE, that I, the said Duncan McGlashan, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement, reference being had to the accompanying Drawings and to the
letters and figures marked thereon, that is to say:-
My said Invention, which relates to certain improvements in sewing
fmachines, has reference principally to the application of a feed motion by
which the cloth being sewn is actuated in every requisite direction, so that any
pattern may be produced on the cloth having circles or parts of circles and
any portions of curved or straight lines thereon. The machinery by which
this varied feed motion is obtained is actuated by a hand wheel in the end of
a shaft, on which shaft bevil wheels are fitted gearing into corresponding wheels
or pinions on two other shafts, these shafts again having wheels on them gearing
into similar wheels on the rod above carrying the needle, and into another
similar wheel carrying the race in which the shuttle is contained. The use of
this system of shafts and wheels is that the needle, shuttle, and feed may be
moved simultaneously. When used for curved stitching the feed motion is
actuated by the hand wheel at any requisite speed necessary for producing the
pattern, and when straight line stitching is being worked the feed motion is
set in the direction necessary for moving the cloth. It is obvious that this
system of feed motion is applicable to sewing machines generally.
And in order that my said Invention may be properly understood, I now
proceed more particularly to describe the same, reference being had, for the
sake of complete elucidation, to the two Figures upon the appended Sheet of
Drawings, in which Figure 1 is a side elevation of a machine in which are
shown only those parts necessary for affording a complete understanding of my
Invention. Figure 2 is a plan of Figure 1. In both Figures A is the main
framing, and it is formed with suitable projections on it for carrying the shafts,.
by means of which the table B, containing the feed as well as the needle, are
caused to assume varied positions according to the requirements of the work
at any particular time. On the bed plate C of the machine bearings are
placed for the reception of the shaft D carrying the hand wheel E, and
according to the direction in which the operator moves the wheel E, the table
carrying the feed as well as the top needle and presser or foot are corres-
pondingly moved by the intervention of the cross shafts and bevil gearing
F, F, F, F, F; F, being the needle bar. The revolving table B carries
the shuttle race H, and at the central part in the upper surface is carried the
feed plate I. At right angles to the shuttle race on the table B, the
machinery for actuating the feeding teeth is situated; these teeth project to

page_text: the required distance upwards through the feed plate I; thus by means of
this Invention the shuttle race and feed are always maintained at the requisite
relative position with each other, as well as with the needle and presser, the
whole of which is effected by the machinery herein-before described, and shown
in the accompanying Sheet of Drawings, so that by means of a simple hand
motion the work may be at once produced of any required pattern, and the
cloth is caused to travel in any required direction to enable such pattern to
be produced, the feed continuing as if the work were uniform. It is to
be understood that the arrangement of the parts; and the mode of working
the same as herein described, are applicable to various classes of sewing
machines.
Having now described the nature of my said Invention, and the manner
in which the same is or may be used or carried into practical effect, I would
observe in conclusion that what I consider to be novel and original, and
therefore claim as the Invention secured to me by the herein-before in part
recited Letters Patent is,-
First, the arrangement and construction of parts of mechanism by which
various patterns can be worked by sewing machines, as herein-before described,
or any mere modification thereof.
Second, the application to sewing machines of a revolving table carrying
the shuttle race and feed plate, or feed plate and circular or other needle, and
of a revolving needle or needle bar and presser, all actuated as herein-before
described, or any mere modification thereof.
In witness whereof, I, the said Dunean McGlasham, junr., have hereunto
set my band and seal, this Eighteenth day of December, One thousand
eight hundred and sixty-five.
DUNCAN MCGLASHAM, JUNIOR. (L.S.)
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