IMPROVEMENTS IN SEWING MACHINE3
Year: 1865

page_text: LETTERS PATENT to George Haseltine, of the "International Patent
Office," No. 8, Sonthampton Buildings. Chancery Lane, in the County
of Middlesex, Civil Engineer, for the Invention of "IMPROVEMENTS IN
SEWING MACHINE3."-A communication from abroad by Thaddeus Iliram
CIFICATION med by the said George Haseltine at the
Office of the Commissioners of Patents, with his Petition and Declara-
tion, on the 22nd June 1865, pursuant to the 9th Section of the Patent
Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
HASELTINE, of the "International Patent Office," No. 8, Southampton Build-
ings, Chancery Lane, in the County of Middlesex. Civil Engineer, send
greeting.
WHEREAS T am in possession of an Invention for "IMPROVEMENTS IN
SEWING MACHINES," and have petitioned Her Majesty to grant unto me, my
executors, administrators, and assigns, Her Royal Letters Patent for the same,
and have made solemn Declaration that it has been communicated to me by
from abroad by Thaddeus Hiram Walker, of Salem, New York, United States
of America.
NOW KNOW YE, that I, the said George Haseltine, do hereby declare
that the following Complete Specification under my hand and seal fully
Price Sl

page_text: describes and ascertains the nature of the said Invention, and in what manner
the same is to be performed in and by the following statement, reference
being had to the accompanying Drawing, making a part of this Specifica-
tion:
My Invention consists in combining with a reciprocating needle and a four-
motion feed. a novel mechanism for driving the shuttle. Also in a novel means
for feeding the material and regulating the length of stitch. Also in a novel
means of producing iension upon the needle thread, and taking up the slack
ihread thereof.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a top view of the machine: Figure 2 is a side elevation: Figure 3
is an end view: Figure 4 is a full size rear view of part of the machine showing
the feeding mechanism: Figure 5 is a full size side elevation showing the
Similar letters of reference indicate like parts in all the Drawings.
same.
-
A represents the base from which rises an arm B. and standard C. for sup-
porting the shaft. H. and other operative parts of the machine. The shaft I
has its journals at b in the arm B. and c in the standard C. Upon this shaft.
there is a cam G. so grooved as to give the proper reciprocating movements to
the needle through the invention of the vibrating arm D, with a rest for
the shuttle to pass through the needles loop. To the arm B is pivoted at a
the lever D, the lower end being provided with a stnd and roller u, Figure 1.
while the other end is jointed to the needle bar N. The needle bar N and
presser foot O slide in grooves in the face plate E, which is clamped to the front
part of the arm B by screws. The front end of the standard C is bored out
to receive a disc wheel R fastened to the shaft II, to which is pivoted the
The lower end of the shuttle carrier arm
shuttle carrier arm J by a screw /.
has a pin and roller o, which slide in a vertical groove formed by the two
The shuttle T rests in a cradle of the proper shape
bars m and n, Figure 3.
to receive it, the rear end being hinged at q with a spring P resting upon
it, so that it can be readily turned down for removing and replacing the
shuttle when desired. The feeding mechanism is plainly shown in Figures 4
and 5. The shaft I has an excentric M turned thereon, and to this is clamped
a slotted lever or arm K, which is bored out at its lower end to fit the excen-
tric, the upper end being bored to receive the feed points d. The lever Q is
jointed at r, and is provided with a pin 2, which is inserted in the slot S in
the bar K, and by moving this pin up and down the travel of the feed
points is regulated and consequently the length of stitch. Attached to the
feed bar d is a rod s, which slides in a hole in the car y, which causes the feed

page_text: points to take and retain a square strong hold upon the material to be sewed.
The tension of the upper or needle thread is shown in Figures 1 and 2, and
consists in the use of two disc wheels T.. between which the thread is clamped,
and
The thread is taken from the spool V. and passed through an eye on the
arm B. thence between the dise wheels L. thence through an eye in one part
of a forked piece secured to the needle arm D. thence through a slotied arm i
projecting downwards and under a light coil spring, and thence through an
eye in the forked piece. (which is arranged to straddle the arm i). thence
through a guiding eye in the back of the needle bar. and thence ihrough the
eye of the needle from right to left as seen in Figure 2. The needle passes
down into a groove / cut in the standard C. and the needle should be so set
that after the needle has descended to its lowest point and re-acted to form
the loop of needle thread, the eye of the needle and loop of thread will be in
proper position for the shattle to pass through freely. The shuttle T is an
ordinary side-pointed shuttle carrying a spool of thread, the tension on the thread
being obtained by passing it through a series of holes. The material to be
sewed is then placed upon the plate or table F. and the presser foot or-shoe
is let down by means of the handle h pivoted to the bar o, the presser foot
being held to the material by means of a coil spring inserted in the arm B.
and resting against a pin projecting inwards from the presser bar, as shown in
the dotted lines in Figure 2. The spring is kept in place by a screw v.
Motion being imparted by turning the wheel secured to shaft H in the
direction of the arrow, causes the needle to descend to its lowest point in the
groove . and then re-act to form a loop or bow of thread. The needle then
remains stationary until the shuttle has been forced through the loop of
needle thread by means of the revolving disc R and lever J. and the iwo
threads are interlocked. The excentric M on the shaft H causes the slotted
arm K, to which the feed points d are attached, to rise and grasp the material,
and while the needle is out of the material it is forced along for the stitch.
The stitch is regulated as may be desired by simply moving the lever Q up or
down, which carries the fulcrum pin z towards the shaft. H; by pressing the
lever down the stitch is made longer, and by raising it up the stitch will be
made shorier.
Having thus fully described said improvements as communicated from
my foreign correspondent, I claim as my Invention,
First, combining with a reciprocating needle and four-motion feed, the

page_text: mechanism for driving the shuttle in an elliptic pain, substantially as described
and specified.
Second, I claim feeding the material and regulating the stitches thereof by
means of the slotted bar K, excentric M. and lever Q. provided with a fulcrum
pin x, substantially as described and specified.
Third, I claim regulating the tension on the needle thread by means of the
disc wheels L in combination with the slotted arm i and coil spring, substantially
as described and specified.
In witness whereof, 1. the said George Haseltine, have hereunto set my
hand and seal, this Twenty-first day of June, in the year of our Lord
One thousand eight hundred and sixty-five.
Witness,
ROWLAND GREEN.
GEORGE HASELTINE. (...)