Im- PROVEMENTS IN THE FEED ACTION OF CERTAIN DESCRIPTIONS OF SEWING MACHINES
Year: 1875

page_text: LETTERS PATENT to James Elliott, of Kettering, in the County of
Northampton, Machinist, for the Invention of "IMPROVEMENTS IN
PROVISIONAL SPECIFICATION left by the said James Elliott at the
Office of the Commissioners of Patents, with his Petition, on the
22nd October 1875.
I, JAMES ELLIOTT, of Kettering, in the County of Northampton,
Machinist, do hereby declare the nature of the said Invention for "Im-
PROVEMENTS IN THE FEED ACTION OF CERTAIN DESCRIPTIONS OF SEWING MACHINES,"
to be as follows, that is to say :-
―:
This Invention refers to improvements in the wheel feed action of
sewing machines constructed upon the Howe, the cylinder, or the Singer
principle, or any other machine using a wheel feed, and it consists in
forming a double-jointed lever, the axis of one joint being the spindle or

page_text: axis of the wheel, and that of the other a pin working in a groove
formed on the side of the wheel or upon a double pin formed on the
under side of one arm of the joint, which double pin works over a rib or
flange on the side of the wheel. This arm of the joint, which forms a
portion of the lever, is free, but is governed by a spring.
The boss through which the spindle of the wheel works is plain
requiring no sinkings, as the apparatus works without the dogs or
clutches as usually employed in this description of feed motion.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said James Elliott in the Great Seal Patent Office on
the 22nd April 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
ELLIOTT, of Kettering, in the County of Northampton, Machinist, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-second day of October, 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 suc-
cessors, give and grant unto me, the said James Elliott, Her special
license that I, the said James Elliott, my executors, administrators,
and assigns, or such others as J, the said James Elliott, 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 FEED ACTION OF CERTAIN DESCRIPTIONS OF SEWING MACHINES," upon the
condition (amongst others) that I, the said James Elliott, 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

page_text: Patent Office within six calendar months next and immediately after the
date of the said Letters Patent.
NOW KNOW YE, that I, the said James Elliott, 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, that is to say :-
This Invention refers to improvements in the wheel feed action of
sewing machines constructed upon the Howe, the cylinder, or the Singer
principal, or any other sewing machine using a wheel feed, and it
consists in forming a double-jointed lever, the axis of one joint being
the spindle or axis of the wheel, and that of the other a pin working in
a groove formed on the side of the wheel or upon a double pin formed
on the under side of one arm of the joint, which double pin works over
a rib or flange on the side of the wheel. This arm of the joint, which
forms a portion of the lever, is free, but is governed by a spring.
The boss through which the spindle of the wheel works is plain,
requiring no sinkings, as the apparatus works without the dogs or
clutches and pair of springs connected therewith, as usually employed
in this description of feed motion.
I will now proceed to describe my Invention more fully in detail by
aid of the accompanying Drawings, reference being had to the letters
and figures marked thereon.
Fig. 1 is a front elevation and Fig. 2 a side elevation of the wheel
feed action of a sewing machine with my improvements applied
thereto.
I form a double-jointed lever (a,) (a¹) the axis of one joint being the
spindle or axis (b) of the wheel (c), and that of the other joint or arm
a wormed bush (h) of the screw pin or stud (d), and this screw pin or
stud (d) works in a groove (e), which is formed between two flanges
(f) (f) upon the face of the ordinary feed wheel (c). The screw pin or
stud (d) is formed, as seen in the detached views Figs. 3 and 4, of an
oval shape in under side plan for fitting into the groove (e), and gripping
or impinging upon the sides thereof, when the usual eccentric strikes
the lever or arm («¹), and when the lever (a¹) has been released from
the eccentric the ordinary spring (9), which is attached underneath the

page_text: bed of the machine, will pull the double-jointed lever (a) and («')
together with the screw pin or stud (d) sufficiently to cause the top or
free end of the lever (a) to bear against the ordinary stitch screw, and
the screw pin or stud (d) by this action of the spring (g) will also be
freed from impingment against the sides of the groove (e).
The screw pin or stud (d) is secured in position in the double-jointed
lever (a,) (a) by the wormed bush (h), shewn more clearly in Fig. 3,
and which also forms the axis of the joint of the double lever («,) (a¹).
The lever or arm (a¹) of the lever (a) is bored with a hole, which is
slightly oval, so that when the screwed bush (4) is passed through it to
form the axis the screwed bush will have a little play in such hole so as
to bring the screw pin or stud (d) always in the centre of the groove (e);
even supposing there to be some variation of distance from the centre
of the wheel to the groove (c) the lever or arm (a¹) is rigid with the
screw pin or stud (d) by means of a shoulder (¹), the wormed bush (4)
when in position locking the parts; or as shewn in Fig. 4 the spindle of
the screw pin or stud (d) may be formed with part right and left handed
screws, the right-handed screw portion of the spindle screwing into the
lever (a), and thus making it rigid with the screw pin or stud (d).
Fig. 5 represents the back face of the wheel (c), in which I cut an
annular groove or recess (i) so as to prevent the wheel from binding or
injuring the thread or silk in forming the loop.
Fig. 6 is a front clevation, Fig. 7 a side elevation, and Fig. 8 a section
of my improved wheel feed action in which I employ in place of the
groove (e) already described a rib or flange (k) upon the wheel (c), and
over this rim or flange (k) works a double screw pin or pair of
studs () () adjusted by lock nuts (m) and secured in the double-jointed
lever as before described; the gripping action of the double screw pin
or pair of studs (1) (",) upon the flange (k) will bo similar to that of
the screw pin or stud (d) in the groove (e). The boss through which
the spindle of the wheel works is plain, requiring no sinkings, as the
apparatus works without the dogs or clutches and pair of springs con-
nected therewith, as usually employed in this description of feed
motion.
Having thus described the object and nature of my said Invention,
and in what manner the same is to be carried into effect, I claim,
E

page_text: without limiting myself to these precise details, the several improve-
ments in the wheel feed action of certain descriptions of sewing
machines, substantially in manner as herein more fully set forth and
specified.
In witness whereof, I, the said James Elliott, have hercunto set
my hand and seal, this Nineteenth day of April, in the year of
our Lord One thousand eight hundred and seventy-six.
(L.s.) JAMES ELLIOTT.