IMPROVEMENTS IN SEWING MACHINES
Year: 1871

page_text: LETTERS PATENT to William Winter, of Leeds, in the County of York,
for the Invention of "IMPROVEMENTS IN SEWING MACHINES."
Scaled the 6th February 1872, and dated the 11th August 1871.
PROVISIONAL SPECIFICATION left by the said William Winter at the
Office of the Commissioners of Patents, with his Petition, on the
11th August 1871.
I, WILLIAM WINTER, of Leeds, in the County of York, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN SEWING
MACHINES," to be as follows:-
•
My Invention consists, firstly, in an improved arrangement for driving
or imparting the required reciprocating motion to the shuttle carrier,
as hereafter described. I provide in a vertical position in bearings,
and directly under the shuttle carrier, a lever actuated by a grooved
cam mounted on a horizontal shaft under the table. By the rotary
motion of the cam a reciprocating motion is imparted to the lever,
and transmitted thereby to the shuttle carrier into which the end
of the lever is passed. The runner.which works in the cam is mounted
on a stud placed at any point on the lever between its axis and the

page_text: point of contact with the shuttle carrier. By this arrangement a more
direct action is obtained, and the construction of the machine simplified.
Secondly. My Invention further consists in having a wheel or roller
loose on its shaft, or between centres, and placed under or over the work
so as to revolve freely in conjunction with the motion of a mover
known as a "fore motion or stepper feed." By this arrangement the
work passes between the loose wheel or roller and the mover with perfect
freedom, reducing thereby the amount of friction required for moving
the material operated upon.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Winter in the Great Seal Patent Office on
the 9th February 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
WINTER, of Leeds, in the County of York, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eleventh day of August, in the year of
our Lord One thousand eight hundred and seventy-one, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said William Winter, Her special licence
that I, the said William Winter, my executors, administrators, and
assigns, or such others as I, the said William Winter, 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, 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," upon the condition (amongst others) that I, the said
William Winter, 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 Seal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, said the William Winter, 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

page_text: following statement, reference being had to the accompanying Drawings,
and to the letters of reference marked thereon, that is to say :-
My Invention consists, firstly, in an improved arrangement for
driving or imparting the required reciprocating motion to the shuttle
carrier, as hereafter described. I provide in a vertical position in
bearings, and directly under the shuttle carrier, a lever actuated by
a grooved cam mounted on a horizontal shaft under the table. By
the rotary motion of the cam a reciprocating motion is imparted to
the lever, and transmitted thereby to the shuttle carrier, into which
the end of the lever is passed. The runner which works in the cam
is (mounted on a stud placed at any point on the lever between its
axis and the point of contact with the shuttle carrier. By this arrange-
ment a more direct action is obtained, and the construction of the
machine simplified.
Fig. 1, Sheet 1, is a side elevation; Fig. 2, an end elevation of a
machine constructed according to my Invention, and as applied to
sewing machines with shuttle working lengthwise of the table; Fig. 3
is a longitudinal section and Fig. 4 an end clevation of a machine
constructed according to my Invention as applied to sewing machines
with the shuttle working across the table.
When the shuttle runs lengthwise of the table I mount the bell cam a
on the shaft b, as shewn in Figs. 1 and 2. I also provide a lever c
which I mount on the stud d carried by the headstock c. The runner f
is mounted on a stud g fixed on the lever c, and works freely in the
groove h in the cam a. By the rotary motion of the bell cam a recipro-
cating motion is imparted from the groove h to the lover c through the
runner f. The end of the lever c is connected with the shuttle carrier i,
as shewn, whereby the required reciprocating motion is imparted to the
shuttle. When my Invention is applied to sewing machines with the
shuttle working across the table, I employ a face cam a on the shaft b,
as shewn at Figs. 3 and 4; in the groove c of this cam the runner d
works freely, and is carried by the lever e in a similar manner as
described and shewn at g, Figs. 1 and 2. By the rotary motion of the
cam a, a reciprocating motion is imparted to the lever e. I connect
this lever with the shuttle carrier at f as shown, whereby the required
reciprocating motion is imparted to the shuttle.
The second part of my Invention is illustrated at Sheet 2. Fig. 1
is a side clevation and section, Fig. 2, an end elevation of a sewing

page_text: machine with improvements applied. This part of my Invention consists
in having a loose wheel or roller a, the periphery of which I cover with
cloth, caoutchouc, or other elastic substance as shewn at b. I mount
the wheel or roller a on a stud c carried under the table d by the
bracket e. Instead of the stud c, the roller or wheel a may be mounted
between centres. The above-described arrangement is made to work
in conjunction with the motion of a mover f known as a fore motion
or stepper feed."
Having now described the nature of my said Invention, and the
manner in which the same is to be performed, I would remark that
I do not limit myself to the exact limits, details, and configuration
of parts I have described and shewn, as, the same may be varied or
modified without in any way departing from my Invention; but what
I do claim and desire to be secured to me by Letters Patent is,―
Firstly. The arrangement and combination of parts shewn on Sheet 1
for giving the required reciprocating motion to the shuttle, substantially
as and for purposes herein set forth.
I
Secondly. The employment of a loose wheel or roller a working in
combination with a mover f known as a fore motion or stepper feed,"
substantially as and for purposes herein set forth.
In witness whereof, I, the said William Winter, have hereunto set
my hand and seal, this Eighth day of February, in the year of
our Lord One thousand eight hundred and seventy-two.