IMPROVEMENTS IN DOUBLE QUILTING SHUTTLE SEWING MACHINES FOR QUILTING KID AND LEATHER GLOVES, AND GLOVES OF ANY FABRICS
Year: 1878

page_text: PROVISIONAL SPECIFICATION left by Carl Necker at the Office of the
Commissioners of Patents on the 7th March 1878.
CARL NECKER, of Berlin, Germany. "IMPROVEMENTS IN DOUBLE QUILTING
SHUTTLE SEWING MACHINES FOR QUILTING KID AND LEATHER GLOVES, AND GLOVES
OF ANY FABRICS."
My Invention relates to a novel construction and combination of parts of a
sewing machine, by means of which quilted gloves may be sewn in such a manner
that the seam of the fingers inside and outside shews a quilted stitch.
The bed plate of a sewing machine constructed according to this Invention
forms a case, the horizontal driving shaft passing through the said case and receiving
motion from a strap, pulley, or hand wheel. This shaft works in bearings supported
by suitable standards.
The said horizontal shaft, by means of a bevel gear wheel, imparts motion to a
vertical shaft, which carries excentrics serving to work the feeder, and also to drive
the shuttle by means of a lever and a driving race.
The shuttle in one construction of my said machine is moved up and down in a
vertical race; in the other modification its horizontal path describes a circle.
The feeding mechanism consists of a revolving disc at the top of a funnel-shaped
piece, which at the same time carries the horizontal circular shuttle race, the latter
being closed by a top plate with a stitch hole and a slider.
In the construction with the vertical shuttle race, this feeding disc rests upon a
cylindrical vertical piece.
.
The fabrics or leather are brought between the said feeding disc and a feeding
roller; or instead of this feeding roller a lever arm may be attached to the fraine,
receiving alternately both a forward and sidewise motion by means of excentric
rollers placed upon the driving shaft. This lever arm, together with the revolving
disc before mentioned, takes hold of the leather or fabric and feeds the same.
The required length of stitch may be adjusted by a screw as usual.
The needle bar, working within a
roller sliding in a heart-shaped slot.
the latter passing through its front
077
cylinder, receives motion from a disc and a
The said cylinder serves to protect the needle,
part, where the small tapered feeding roller

page_text: before mentioned may be adjusted. At the other end the said cylinder is fastened
to a disc resting upon slide bars, which by means of a crank lever and connecting
rod may be worked from a treadle, thus enabling the cylinder to be put out of
gear by the foot.
To secure the needle to the needle bar the top plate of the said cylinder is removed,
and the needle attached to the bar by a screw or by other suitable means. The needle
eye will therefore be vertical and the small groove downward. The sewing thread
coming from the rollers, passes through a thread presser and other suitable arrange-
ments; to give it the required tension it enters the said cylinder, and there runs
along the needle bar up to the needle eye outside of the front part of the cylinder.
The thread of the shuttle runs from the shuttle spool over a stud, thence passing
through one or several holes as more or less tension is required, and it comes forth
from the hole next to the front of the shuttle. When the shuttle is properly put
in place the thread must be drawn out of the stich hola. Before the machine is
put in use the cylinder and shuttle must be shut up. The glove leather or fabrics
are brought into the feeding mechanism and the driving wheel is turned.
In commencing, the two free ends of the needle, and shuttle thread are slightly
held fast.
The borders of every two parts of the glove to be united overlap each other
only about one millimeter, and are brought before the needle point.
The best way to proceed in sewing gloves by this improved machine is first to
sew the gusset between the thumb and forefinger, then the thumb, then the gussets
or slips inserted between the fingers, and after this the two halves of the glove are
united, the long seam down the little finger coming last.
All seams sewn by the said improved machine are very strong and durable,
have a good appearance outside and inside, and considerable time is saved in
sewing.