IMPROVEMENTS IN SEWING OR STITCHING MACHINES
Year: 1872

page_text: LETTERS PATENT to William Jackson, of 1", Caroline Street, Eaton
Square, Pimlico, in the County of Middlesex, for the Invention of
"IMPROVEMENTS IN SEWING OR STITCHING MACHINES."
Sealed the 24th September 1872, and dated the 1st May 1872.
PROVISIONAL SPECIFICATION left by the said William Jackson at
the Office of the Commissioners of Patents, with his Petition, on
the 1st May 1872.
I, WILLIAM JACKSON, of 1", Caroline Street, Eaton Square, Pimlico,
5 in the County of Middlesex, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN SEWING OR STITCHING MACHINES," to be as
follows:
-
My Invention consists in a novel construction and arrangement of
parts of a sewing or stitching machine to form a lock or fast stitch.
D-The-stitch is produced by a hook-fixed by a screw or stud on the end of a
main revolving shaft carrying the thread around a reel placed vertically
against the end of the shaft, and also by a guard which is fixed opposite

page_text: to the hook which carries the cotton away from the needle which
prevents the under cotton or thread from being caught by the hook. It
can be fixed to the spool holder or to the frame of the machine. And
further my improvements consists in an improved needle and method for
fixing the same. The shank or stem of the needle is provided with a
projecting piece arranged to be fitted in a hole in the needle bar or a
hole in the shank of the needle and a pin in the needle bar to prevent
the needle from being fixed too high or too low, or in any position but
the right one.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Jackson in the Great Seal Patent Office
on the 17th October 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
JACKSON, of 1º, Caroline Street, Eaton Square, Pimlico, in the County
of Middlesex, send greeting.
.
WHEREAS Her most Excellent Majesty. Queen Victoria, by Her
Letters Patent, bearing date the First day of May, in the year of our
Lord One thousand eight hundred and seventy-two, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said William Jackson, Her special license
that I, the said William Jackson, my executors, administrators, and
assigns, or such others as I, the said William Jackson, my executors,
administrators, and 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, exer-
cise, and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS
IN SEWING OR STITCHING MACHINES," upon the condition (amongst others)
that I, the said William Jackson, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and
scals, 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 Scal Patont Office within six
calendar months next and immediately after the date of the said Letters
Patent.

page_text: NOW KNOW YE, that I, the said William Jackson, do hereby
declare the nature of my said 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 more particularly to sewing machines of the
kind in which the needle thread is carried over a stationary bobbin by a
hook, but some of the improvements are also applicable to other kinds
of sewing machines.
In the machine of the kind referred to it is provided with a guard of
an improved system to prevent the under cottons from being caught
with the hook; this guard is formed in shape of a hook, and can be
attached to the spool holder or to the plate of the machine; and also
an improved needle and method for fixing the same.
The accompanying Drawings show the parts generally composing this
machine.
.
In Fig. 1, being a side clevation, A represents the main shaft for
driving the needle bar; B is a disc attached to shaft A for the purpose
of working the needle bar; C is a small pin and roller attached to
disc B working in a slotted block D attached by a screw to needle bar E;
F is a strap on the lower end of the needle bar, which is provided with
a thumbscrew for fastening the needle. The end of the needle bar E
has a small groove and a hole in the groove to allow the end of the
needle; the needle is bent at the top end of the shank to go in the holė
of the needle bar for the purpose of preventing the needle from being set
too high or too low, or in any position but the right one, the strap F is
placed over the needle to keep it, in the slot and fasten it; G shows
another method of fixing the needle; instead of bending the needle the
needle has a hole in the shank and a pin in the slot of the needle bar
for preventing the needle from being set too high or too low, or in any
position but the right one; H is the presser foot; I is the spring for
giving pressure; J is a lever for raising the presser foot; K is a thumb-
screw and spring for holding the under spool or bobbin in its placo
when working, and also is used for taking out the spool by pressing on the
thumbscrew; L is the spool holder which is attached under the plate
of the machine; M is the hook for carrying the upper thread away from
the needle over the spool, the thread is thrown off the hook at about
three parts of the circle of the spool by a projecting piece on the spool
_holder, as shown in Drawing by letter N; N' is the hook or guard

page_text: referred to; O is a link which is attached to the hook M and works on
a joint, as shown by letter P; Q is the apparatus for feeding or pro-
pelling the material, which is worked by the disc R and driving shaft S;
the length of stitch is regulated by a small eccentric lever T; U, V, W,
are the three wheels for driving the machine, as shewn in the Drawing. 5
Fig. 2 is an end view of the feed apparatus, and Fig. 3 is a plan view,
shewing the hook or guard; Fig. 4 shews two examples of needles.
Having thus particularly described my said Invention, and the manner
in which the same is or may be performed, I have to state that I do not
restrict myself to the precise details herein described or delineated; but 1
that what I believe to be novel and original, and claim as the Invention
secured to me by the herein-before in part recited Letters Patent is,
the arranging or combining of the working parts of sewing machines,
substantially in the improved manner herein-before described.
The construction of the thread guide for protecting the under cotton 1
and system of needles and mode of fixing the same, substantially as
herein-before described.
In witness whereof, I, the said William Jackson, have hereunto
set my hand and scal, this Eighteenth day of September, in the
year of our Lord One thousand eight hundred and seventy-two. 2