IMPROVEMENTS IN OR APPLICABLE TO SEWING MACHINES
Year: 1883

page_text: PROVISIONAL SPECIFICATION left by Herbert John Haddan at the Office
of the Commissioners of Patents on the 13th March 1883. A communication
to him from abroad by Gustav Wicke, of Barmen, Germany
HERBERT JOHN HADDAN, of Kensington, Middlesex, "IMPROVEMENTS IN OR
APPLICABLE TO SEWING MACHINES," a communication to me from abroad by
Gustav Wicke, of Barmen, Germany,
The object of the present invention is, to provide sewing machines with a
mechanism by means of which it will be possible to use in sewing not only yarn
wound on reels or bobbins, but also yarn wound in coils or on flat cards, which
shall be enabled to rotate without coming to a stand still in a so called dead point
and as easy as the reels generally used with sewing machines.
For this purpose I make a little bracket of any convenient shape to be fixed
in different positions on the vertical or horizontal pin on which usually the yarn
reel is stuck.
On the other end of the bracket there is either a boss into which the card-
holder, or coil-holder hereafter specially described, is placed, or it carries a pin, on
which that contrivance is stuck and in or round which it rotates when the yarn is
unwound by the action of sewing.
The card-holder itself may be formed of a small double cylinder or of a
truncated cone.
The upper part of the card-holder is slotted out diametrically to admit the card
which is held there by a set screw.
The card holder with the card is placed on the pin of the said bracket, so that
it can rotate freely on that pin.
I also provide a yarn-guide which consists of a brass wire of peculiar shape,
forming with its upper part a long vertical loop, and bent borizontally. below the
card-holder; where it is fixed to a sleeve, which is mounted loosely on the above-
mentioned pin resting on the bracket.
Round the said sleeve is wound a light spiral spring which with one end is fixed
to the bracket which presses with its other end against the yarn-guide.
Instead of the spiral spring a flat spring might be used.
Or the sleeve may be dispensed with altogether and the spring made in one
piece with the varn guide.

page_text: The object of this invention may be attained by a still simpler construction; no
special bracket being required, nor a separate card-holder.
In this modification the bracket, yarn-guide and spring form one single piece.
On a hollow pin is fastened by soldering a steel wire extending first right and
left in a horizontal direction, then rising on each side upwards to be wound at a
suitable height into a narrow helix forming a bush or journal, in which a clamp
finds its bearing.
Leaving the spiral, the wire is carried upwards again, forming a parallel line
with the card itself, so that the depression in the centre prevents the yarn from
falling off the guide.
At two places the wire is reduced in section and pressed flat and this part is
hardened, so that it acts like a spring in the same way and for the same
purpose as the spring and yarn guide in the constructions described before.
The card itself is held between the said two clamps, which can rotate in the
bushes formed by windings of the wire.
In order to be able to use also other forms of yarn with the sewing machines; I
place in the said bracket a box with a hollow pin at its bottom.
The box is covered by a lid in the centre of which is a small hole, through
which the sewing yarn which is put in the box is drawn out. On the inside of
the lid is fixed a small india rubber washer, so that the yarn must also pass this
washer in being pulled out and which acts as a sort of brake to prevent the yarn
being pulled out in larger quantities at a time, than is just necessary by the action
of sewing.