Ix- PROVEMENTS IN THE CONSTRUCTION OF SPOOLS, REELS, DISCS, AND TUBES FOR SEWING MACHINE SHUTTLES, ALSO IN THE APPARATUS FOR WINDING THE THREAD THEREON.
Year: 1873

page_text: LETTERS PATENT to Thomas Laycock and James Shuttleworth, both
of Skipton-in-Craven, County of York, for the Invention of "Ix-
PROVEMENTS IN THE CONSTRUCTION OF SPOOLS, REELS, DISCS, AND TUBES FOR
SEWING MACHINE SHUTTLES, ALSO IN THE APPARATUS FOR WINDING THE
THREAD THEREON.
"
COMPLETE SPECIFICATION filed by the said Thomas Laycock and
James Shuttleworth at the Office of the Commissioners of Patents,
with their Petition and Declaration, on the 24th March 1873,
pursuant to the 9th Section of the Patent Law Amendment Act,
1852.

page_text: a corresponding wheel and pinion working back to the same centre as
that of the spools. It is found that eight spools can be wound upon
the improved wire spindle from one end without twisting; but by
application of motion from the threaded shaft at proper intervals the
machine can be made to any length and capable of winding a much
larger quantity of spools than is shewn upon the Drawing, to which
reference will be made in this Specification. The spools, reels, or discs
are maintained in their position by carriers capable of adjustment in the
slotted bar by means of slides which form the ends of the thumb screws;
this is also the case with the thread guide holders. The requisite traverse
for the formation of the spools or reels is regulated by hand or made a
self-acting motion.
When the present metallic or the improved disc are used no traverse is
required.
By using our improved spools which consists of a simple piece of wire
or thin tube of paper or metal fixed upon wire spindle, which in the
latter case may be triangular or square, we dispense with the flanges
of the ordinary spool, and by thus simplifying its construction and in
conjunction with the compact winding of the machine we are enabled to
place in the cavity of the shuttle a much larger quantity of thread than
-they at present hold; more than this, by using this improved spool or the
ordinary spool in conjunction with our improved machine, the difficulties
and inconvenience of the irregular winding of the thread, as is the case
with spools wound by hand, it overcomes, that is to say, in using the
hand wound spool the irregularity of the tension is attributable to the
unwinding of the thread from a point nearer to or farther from the hole
formed in the shuttle; but by being wound with our improved machine
in regular and uniform windings, the unwinding is regular, and the
tension upon the spool is uniform until quite used up.
.
We will now describe the Drawings herewith annexed and forming

page_text: in which centre is a pinion B working into wheel C upon the right and
left handed threaded shaft D, having corresponding wheels E, F, at the
other end in order to prevent twisting of wire, which is supported between
each spool by means of carriers G, adjustable upon a slotted bar H. The
thread guide holders I carrying the tension arrangements are shown 5
upon the slotted bar K. This bar has a to-and-fro motion imparted to
it by means of the right and left handed shaft D, being embraced by
sectional nuts L attached to the bosses of the slotted bar by means of
arms M, M³. The spindle N allows the slotted bar K to move to and
fro; R³ is the roving board upon which the bobbins are placed.
Fig. 2 is an elevation shewing the manner in which various kinds of
spools can be wound by our improved machine; S, S, are the improved
spools; T, T, are the ordinary flanged spools; U, U, are the discs. The
carriers G are arranged to carry the spools.
Fig. 3 shewing the arms and nuts embracing right and left handed 1
shaft D and the arrangement by which the to-and-fro motion is reversed.
The handle Q is connected to the arms M' and M'; when M' is in thread
with the shaft D the slotted bar K is travelling to the left; when M* is
in thread the slotted bar K is travelling to the right; one nut only can
be in thread at the same time; the simple upwards or downwards pressure 2
upon the handle Q is sufficient to reverse the motion of the traverse bar;
this arrangement can be made self-acting and is regulated by the
required form of the spool,
1

page_text: ratus for winding the thread as above described, and for the cutting of
the improved spools.
In witness whercof, the said Thomas Laycock and James Shuttle-
worth, have hereunto set their hands and seals this Fifteenth day
of March, in the year of our Lord One thousand eight hundred
and seventy-three.
THOMAS LAYCOCK.
(L.S.)
JAMES SHUTTLEWORTH. (L.S.)
Signed, sealed, and delivered by the
before-named Thomas Laycock
and James Shuttleworth, in the
presence of
EDWARD HARRISON.