IMPROVEMENTS IN THE SEWING MECHANISM OF SEWING MACHINES
Year: 1873

page_text: LETTERS PATENT to George Tomlinson Bousfield, of Sutton, in the
County of Surrey, for the Invention of "IMPROVEMENTS IN THE
SEWING MECHANISM OF SEWING MACHINES."-A communication from
abroad by Deborah Shedd, of the Oity of New York, United States
of America.
Bealed the 26th September 1873, and dated the 6th August 1878.
COMPLETE SPECIFICATION filed by the said George Tomlinson
Bousfield at the Office of the Commissioners of Patents, with his
Petition and Declaration, on the 6th August 1878, pursuant to the
9th Section of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
TOMLINSON BOUSFIELD, of Sutton, in the County of Surrey, send
greeting:
.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS IN
THE SEWING MECHANISM OF SEWING MACHINES," and have petitioned Her most
Excellent Majesty Queen Victoria to grant unto me, my executors,
administrators, and assigns, Her Royal Letters Patent for the same, and
have made solèmin Déclaration that it has been communicated to me

page_text: of America.
NOW KNOW YE, that I, the said George Tomlinson Bousfield, do
hereby declare the nature of the said Invention, to be as follows :-
The following is a full, clear, and exact description of the "Improve-
ments in the Sewing Mechanism of Sewing Machines," reference being
had to the annexed Drawings.
These improvements may be applied to any sewing machine, but they
are particularly intended to be used in combination with a pamphlet
stitching machine.
The object of the improvements is first to overcome the difficulty
experienced in taking out the shuttlo to introduce a new bobbin of
thread or for any other purpose, and secondly to facilitate the intro-
duction of the thread into the needle eyc. The top plate of the machine
is made in one picce and cannot be conveniently removed without dis-
connecting other parts. The shuttle carrier has a positive motion and
cannot be removed without breaking the connection to the crank which
operates it. In order to remove the shuttle at any desired time I make
the shuttle carrier of two pieces, one relatively fixed and one movable,
the lathe taking with it the shuttle.
In the Drawing Figure 1 is a plan view; Figure 2 is a face view;
and Figure 3 a vertical section on the line S, S, Figure 2.
A is that part of the shuttle carrier to which a reciprocating motion
is imparted by the crank A¹ and connecting rod A². B is the movable
part of the shuttle carrier or long flat bar which projects out on one side
of the top plate and slides into a recess of the part A under lugs a, a.
This bar B is hooked to A by means of the hinged hook bar B¹ engaging
with one of the lugs a. The lug or arm 6 which serves to hold the
shuttle in its position on one side serves also as a stop in introducing the
bar B with its attachments into the carrier A. The arm b'engages with
the front part of the shuttle C, entering into a little recess of the same
or not. This arm b¹ is cut away at the bottom to clear the lugs a, a.
To remove the shuttle from the machine the hook bar B¹ is pressed
against the force of the spring B' until its hook disengages from the
lug a, when the bar B is free to be drawn out, taking with it the shuttle
C. The needle is shown in Figures 4 and 5. The shank d is made to

page_text: the purposes set forth.
In witness whereof, I, the said George Tomlinson Bousfield, have
hereunto set my hand and seal, this Sixth day of August, One
thousand eight hundred and seventy-three.