IMPROVEMENTS IN THE CONSTRUCTION OF SEWING MACHINES.”
Year: 1875

page_text: LETTERS PATENT to William Taylor, of Great Driffield, in the
County of York, Sewing Machine Manufacturer, for the Invention
of "IMPROVEMENTS IN THE CONSTRUCTION OF SEWING MACHINES.”
of "IMPROVEMENTS IN THE CONSTRUCTION OF SEWING MACHINES.'
"
Sealed the 21st May 1875, and dated the 31st March 1875.

page_text: eccentric operating a link connected to such lever by a ball-and-socket
joint, I do so by means of a crank pin fixed in a disc and operating the
link which is connected to the lever by a universal joint formed of a
small link connected to the before-mentioned link and lever by two pin
joints at right angles to each other, by which means I am enabled to
form the lever and long link by stamping them out of sheet metal.
And in order to prevent the wear of the parts from producing an
excessive variation in the motion of the needle slide I mount the lever
on an axis of motion at about the centre thereof.
The presser slide is guided by passing through holes formed in the
head of the machine, but instead of retaining it in the correct position
by a projection therefrom passing into a cut or slot formed in the head,
I guide it by means of a projection passing into a slot formed in a plate
stamped out of sheet metal, and fixed to the head of the machine by
means of a screw, which also serves to fix the clamping or tension spring
to the head of the machine.
The feed foot and slide I also stamp out of sheet metal, which mode
of construction requires a different shape to be given to the slide. This
I do as follows:-The slide on which the feed foot or serrated plate is
formed is made with three tail pieces, two of which are in one planc, 1
and fit at their sides between the head of the guide screw or stud and
the standard carrying the work plate, and rest on the top of the guide
screw or stud. The other tail picce is bent down so as to pass under
the guide screw or stud. A portion of the feed slido passes over and
rests upon the eccentric, giving motion thereto, whilst a shaped piece
of metal, which rests against the side of the eccentric, is fixed to the
main portion of the feed slide by means of a screw passing through a
slot formed in such piece, and thereby enabling the parts to be readily
adjusted, a spring being employed to keep the feed slide up to the
eccentric as usual.
The bracket carrying the driving wheel is fixed to the frame of the
machine by means of a thumbscrew passing through a slot in the
bracket, thereby facilitating adjustment.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Taylor in the Great Seal Patent Office
on the 29th September 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
TAYLOR, of Great Driffield, in the County of York, Sewing Machine
Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirty-first day of March, in the year
of our Lord One thousand eight hundred and seventy-five, in the thirty-
eighth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said William Taylor, Her special license.
that I, the said William Taylor, my executors, administrators, and
assigns, or such others as I, the said William Taylor, 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 THE CONSTRUCTION OF SEWING MACHINES," upon the condition (amongst
others) that I, the said William Taylor, my executors or administrators,
by an instrument in writing under my, or their, or one of their hands and
seals, 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, the said William Taylor, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement thereof, reference being had to the Drawings here-
unto annexed, and to the letters and figures marked thereon, that is to
say:
T
Than] 0
5110
and lation

page_text: The Invention has for its object improvements in the construction
of sewing machines, whereby the cost of production is considerably
reduced.
In constructing loop-stitch machines instead of communicating
motion to the lever a for operating the needle slide by means of an
eccentric operating a link connected to such lever by a ball-and-socket
joint as heretofore, I do so by means of a crank pin fixed in a disc and
operating the link c, which is connected to the lever a by a universal
joint formed of a small link & connected to the before-mentioned link c
and lever a by two pin joints c¹, c, at right angles to each other, by
which means I am enabled to form the lever a and long link by
stamping them out of sheet metal. And in order to prevent the wear
of the parts from producing an excessive variation in the motion of the
needle slide b I mount the lever a on an axis of motion a¹ at about the
centre thereof. Or instead of the universal joint just described a ball-
and-socket arrangement shown by Figures 8, 9, and 10 may be
substituted therefor.
The lever a is the same as that previously described, and is made out
of stamped metal, but is cupped in a press at the end a', and another
cupped piece a² of stamped metal the reverse of the one formed on the
end of the lever a is screwed behind it, as shown, and the two half
cups a, a, enclose a small ball c' formed at the end of the link c also by
stamping.
The presser slide e is guided by passing through holes formed in the
head of the machine as heretofore, but instead of retaining it in the
correct position by a projection therefrom passing into a cut or slot
formed in the head f I guide it by means of a projection e¹ passing into
a slot formed in a plate y stamped out of sheet metal, and fixed to
the head of the machine by means of a screw g³, which also serves to fix
the clamping or tension spring / to the head of the machine.
The feed foot and slide i I also stamp out of sheet metal, which
mode of construction requires a different shape to be given to the slide i.
This I do as follows:-The slide i, on which the feed foot ¹ or serrated
plate is formed, is made with three tail pieces 2, 22, 23, two 2ª, 2, of which
are in one planc, and fit at their sides between the head of the guide
scrow or stud j and the standard / carrying the work plate 7, and rest
on the top of the guide screw or stud j. The other tail piece ³ is bent

page_text: down so as to pass under the guide screw or stud j. A portion of the
feed slide passes over and rests upon the eccentric m, giving motion
thereto, whilst a 7 piece of metal 2, which rests against the side of the
eccentric m is fixed to the main portion of the feed slide i by means of
a screw passing through a slot formed in such piece, and thereby
enabling the parts to be readily adjusted, a spring n being employed to
keep the feed slide i up to the eccentric mas usual.
down so as to pass under the guide screw or stud j. A portion of the
feed slide passes over and rests upon the eccentric m, giving motion
thereto, whilst a 7 piece of metal 2*, which rests against the side of the
eccentric m is fixed to the main portion of the feed slide i by means of
a screw passing through a slot formed in such piece , and thereby
enabling the parts to be readily adjusted, a spring n being employed to
keep the feed slide i up to the eccentric m as usual.
The bracket o carrying the driving wheel p is fixed to the frame of
the machine by means of a thumbscrew q passing through a slot in the
bracket, thereby facilitating adjustment.
I would here remark that although I have described my Invention as
applied to a loop-stitch machine, it is equally applicable to other
descriptions of sewing machines.
Having thus described the nature of my said Invention, and the mode
of carrying the same into effect, I would have it understood that I claim,
the improvements herein described, whereby various parts of a sewing
machine may be made by stamping them out of sheet metal, thereby
considerably reducing the cost of construction thereof.
In witness whereof, I, the said William Taylor, have hereunto set
my hand and seal, this Twenty-third day of September, in the
year of our Lord One thousand eight hundred and seventy-
five.
WILLIAM TAYLOR. (L.S.)