IMPROVEMENTS IN SEWING MACHINES
Year: 1875

page_text: LETTERS PATENT to Henry Gardner, of the Firm of Robertson,
Brooman, and Company, of 166, Fleet Street, in the City of
London, Patent Agents, for the Invention of "IMPROVEMENTS IN
SEWING MACHINES."-A communication from abroad by Richard Mott
Wanan
PROVISIONAL SPECIFICATION left by the said Henry Gardner at the
Office of the Commissioners of Patents, with his Petition, on the
25th March 1875.
I, HENRY GARDNER, of the Firm of Robertson, Brooman, and
Company, of 166, Fleet Street, in the City of London, Patent Agents,
do hereby declare the nature of the said Invention for "IMPROVEMENTS
IN SEWING MACHINES," (a communication from abroad by Richard Mott
Wanzer, of Hamilton, Ontario, Dominion of Canada,) to be as
follows:

page_text: oiler sliding on a plunger, the two being in combination with the
shuttle carrier acting from a tablet roll and a disc for producing a
horizontal race of the shuttle.
Secondly. To a plunger pivotted to a plate and caused to work in the
chamber of the shuttle driver.
Thirdly. To an arrangement of a leg on the " take-up" with a cam
for governing the "take-up" action.
Fourthly. To a combination of appliances acting in unison, by which
the horizontal motion of the shuttle is produced and the "take-up" is
effected.
The Invention is as follows:-The upper part of the shuttle driver is
attached to the shuttle carrier, and the lower part of it contains a
circular chamber into which is inserted a piston or plunger which is
pivotted by a pin to the front of the bottom plate of the machine. The
lower part of the said shuttle driver sliding perpendicularly on the
plunger enables the former to oscillate far enough on each side to drive
the shuttle carrier and shuttle to and fro the full length of its required
stroke.
On the upper shaft behind the collar a cam is arranged which
is made to operate a "take-up" arm which is pivotted to the head of
the machine and made to pass through a slot in the needle bar. A leg
is formed on one end of said "take-up" which is made to press on the
cam; the revolution of the said cam together with the needle bar raises
and lowers the outer end of the take-up to correspond with the move-
ments of the shuttle driver and shuttle.
The combination and operation of the two devices make the stitch
and top and bottom threads finish simultaneously.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Gardner in the Great Seal Patent Office
on the 25th September 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
GARDNER, of the Firm of Robertson, Brooman, and Company, of 166,
Fleet Street, in the City of London, Patent Agents, send greeting.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-fifth 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 Henry Gardner, Her
special licence that I, the said Henry Gardner, my executors, admini-
strators, and assigns, or such others as I, the said Henry Gardner, 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,
excrcise, 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," (communicated to me from abroad
by Richard Mott Wanzer, of Hamilton, Ontario, Dominion of Canada,
upon the condition (amongst others) that I, the said Henry Gardner,
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 Henry Gardner, 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, that is to say :-
This Invention relates,-
Firstly. To a slotted shuttle driver provided with a chamber and an
oiler sliding on a plunger, the two being in combination with the shuttle
carrier acting from a tablet roll and a disc for producing a horizontal
race of the shuttle.
Secondly. To a plunger pivotted to a plate and caused to work in the
chamber of the shuttle driver.
"
Thirdly. To an arrangement of a leg on the “ take-up ” with a cam
for governing the "take-up" action.
Fourthly. To a combination of appliances acting in unison by which
the horizontal motion of the shuttle is produced and the "take-up" is
effected.

page_text: The Invention is as follows:-The upper part of the shuttle driver is
attached to the shuttle carrier, and the lower part of it contains a
circular chamber into which is inserted a piston or plunger which is
pivoted by a pin to the front of the bottom plate of the machine. The
lower part of the said shuttle driver sliding perpendicularly on the
plunger enables the former to oscillate far enough on each side to drive
the shuttle carrier and shuttle to and fro the full length of its required
stroke, as will be more fully explained hereafter.
In combination with the above is a second improvement which may
be described as follows :-On the upper shaft behind the collar a cam is
arranged which is made to operate a "take-up" arm which is pivoted
to the head of the machine and made to pass through a slot in the needle
bar. A leg is formed on one end of said " take-up" which is made
to press on the cam. The revolution of the said cam together with the
needle bar raises and lowers the outer end of the take-up to correspond
with the movements of the shuttle driver and shuttle.
The combination and operation of the two devices make the stitch
and top and bottom threads finish simultaneously.
The working parts under the cloth plate and in the head of the
machine work together so smoothly that there is very little noise when
the machine is sewing.
Figure 1 represents a front view of a machine with the driving wheel
and gearing removed.
Figure 2 is a side view of the head and the front part of the device
under the cloth plate.
Figure 3 is a top view of the head of the machine.
Figures 4 and 5 represent the shuttle driver and its piston or plunger
detached from the machine.
A is the head of the machine; B, the arm attached and shown broken
off in the Drawing; C is the upper shaft; D, the collar on said shaft
for driving the heart motion and needle bar; E is the cam on shaft C
which operates the "take-up," it is placed at the back of the collar D
and is revolved by means of the said shaft passing through, as will be
more fully explained hereafter; F is the heart motion driven by the
collar D; G is the needle bar; H, the pressure foot; I is the front plate

page_text: of the head A of the machine; J is the "take-up " pivoted to the head
of the machine by the pin K; it passes through a slot in the needle bar
and also through a slot in the front plate I. A leg n is formed on the
inner end of said "take-up." This leg comes in contact with and is
operated by the cam E, the effect of which is to raise and lower the
outer end of said "take-up" through which the thread passes. It will
be observed that the cam does not carry up the "take-up" to its highest
position, that is done by the needle bar on its upward movement, the
lower part of the slot in needle bar comes in contact with it and carries
the "take-up" along with it, the spring p at the back of it keeps it in
the same position until the point of the needle enters the throat plate,
then the top of the slot in the needle bar catches the take-up and
brings it down with it. When it gets to the lowest point the cam E
keeps it in that position until the shuttle has passed through the loop,
thereby stopping the loop in the top thread from lifting the heel of the
shuttle while the needle bar is going up, then the bottom of the said
needle bar catches the "take-up " and draws it up with it. L is the
slot in the head and arm of the machine, as shown in the section,
Figure 3; M is the cloth plate; N is the lower shaft; O is the slotted
shuttle driver; its upper end is secured to the shuttle carrier, and its
lower end has a cylindrical hole bored in it into which the plunger or
piston P enters; the said shuttle driver is provided with a slot 6 into
which the tablet roll S of the disc R operates to move said shuttle
driver; c is a small opening in it at the lower end of the slot 6 com-
municating with the chamber X. for oiling said chamber. The piston or
plunger P is pivoted to the bottom of the joint part of the machine by
means of the pin Q and made so as to oscillate back and forth to conform
to the movement of the shuttle driver. S is the tablet roll secured to
the collar R, constructed and fastened in the usual manner common to
that used in the heart motion. Tis the shuttle carrier constructed to
hold the shuttle, and made to slide alongside of the projecting bar t on
the under side of the cloth plate M. The said carrier has a small pro-
jection u on its back which is made to slide on the horizontal slots of
the bar and is fastened to the shuttle driver O by means of a pin a'
passing through the hole a of said shuttle driver and into the said
projection u. As the upper part of the shuttle driver moves back and
forth the said shuttle carrier is thus driven with it, carrying the shuttle U
with it, which moves against the face of the shuttle race V, as shown in
Figure 2. W is the bottom plate of the machine; d is the stitch

page_text: regulator; e is the spring of the feed; f is a lever to operate stitch
regulator; g is a cam to operate feed; ½ is a slot in the face plate
allowing room for the "take-up" arm to pass through; i, i, are thread
extension washers attached to face plate I of the head of the machine;
j is a tension spring rivetted to the back part of the face plate at the
point marked v; the said tension washers are adjusted by means of the
adjusting screw k; is a pin or screw to fasten the thread eyelet m;
n is the leg or arm of the “take-up" which comes in contact with and
is operated by the cam E, as shown in Figure 2; o represents a small
hole in the head A of the machine to contain a spiral spring which is
P
held in place by pin q; is an upright slot in the needle bar for the
"take-up" to pass through and for operating it, thus allowing the
needle bar to do a certain part of the work as well as the cam E at
the back of the collar; & is a longitudinal slot in the projecting bar t on
the under side of the cloth plate M; u is a small projection on the right
side of the shuttle carrier, as was fully described in a former part of the
Specification; is a rivet securing the tension spring ; to the front

page_text: Fourthly. The combination of the shuttle driver O, plunger P,
operated by the tablet roll S of the disc R for driving the shuttle of a
sewing machine, with the cam E and leg n of the "take-up" J arranged
as and for the purpose specified.
In witness whereof, I, the said Henry Gardner, have hereunto set
my hand and seal, this Twenty-fifth day of September, One
thousand eight hundred and seventy-five.