U Manufacture of Astrakan and such like Fabrics.
Year: 1885

page_text: U
Manufacture of Astrakan and such like Fabrics.
I, OLIVER IMRAY of No 28 Southampton Buildings, Chancery Lane, in the
County of Middlesex, Fellow of the Institute of Patent Agents do hereby declare
the nature of my invention for "A. MACHINE FOR CURLING AND CRISPING THREADS
OR YARNS FOR THE MANUFACTURE OF ASTRAKAN AND SUCH LIKE FABRICS
as follows:-
"
to be
This invention relates to a machine for curling and crisping threads or yarns
for the manufacture of astrakan and fabrics of that class. Usually the threads or
yarns for that purpose have been curled and crisped by hand in several successive
operations involving considerable labour and expense. By the machine about to be
described the treatment is completed with great speed at one operation. For this
purpose, the bobbin containing the thread or yarn is caused to revolve round a
stationary mandril so as to wind on it successive convolutions. A reciprocating
blade pushes these convolutions towards the tapered end of the mandril, along
which they are advanced by two grooved rollers that are kept heated by gas jets,
and are pressed by adjustable springs against the opposite sides of the mandril.
These rollers, driven at a suitable speed, while they advance the convolutions to
the end of the mandril from which they pass off into a receptacle, at the same time
by their heat and pressure on the convolutions give the thread or yarn the
set curl required. The mandril may be cylindrical, or it may be of square or other
section, and the hot rollers may be shaped and set so as to press on the whole
circumference, or on parts of the circumference of the mandril, according to the
particular character of curl required.
ABEL & IMRAY,
Agents for the Applicant.

page_text: Manufacture of Astrakan and such like Fabrics.
I, OLIVER IMRAY of N° 28 Southampton Buildings, Chancery Lane, in the
County of Middlesex, Fellow of the Institute of Patent Agents do hereby declaré
the nature of this invention and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement:-
This invention relates to a machine for curling and crisping threads or yarns for
the manufacture of astrakan and fabrics of that class. Usually the threads or
yarns for that purpose have been curled and crisped by hand in several successive
operations, involving considerable labour and expense. By the machine about to
be described the treatment is completed with great speed at one operation. For
this purpose, the bobbin containing the thread or yarn is caused to revolve round
a stationary mandril so as to wind on it successive convolutions. A reciprocating
blade pushes these convolutions towards, the tapered end of the mandril, along
which they are advanced by two grooved rollers that are kept heated by gas jets,
and are pressed by adjustable springs against the opposite sides of the mandril.
These rollers, driven at a suitable speed, while they advance the convolutions to
the end of the mandril from which they pass off into a receptacle, at the same time
by their heat and pressure on the convolutions give the thread or yarn the set curl
required. The mandril may be cylindrical, or it may be of square or other section,
and the hot rollers may be shaped and set so as to press on the whole circum-
ference or on parts of the circumference of the mandril, according to the particular
character of the curl required.
:
Fig. 1 of the accompanying drawings shews a side elevation of the improved
machine. Fig. 2 shews a front view Fig. 3 shews a plan and Fig. 4 shews to an
enlarged scale a section of the appliances for winding and heating the thread. On
the framing A of the machine is fixed a support B carrying a tubular piece C on
which revolves the bobbin carrier D.
:
The thread to be treated in passing from the bobbin is first led through the
loop a on the bobbin carrier, thence over the ring E from which it passes on to the
mandril F, which is held by screws on the part C. For forming and advancing
the coils of thread the mandril F has a slot b in which slides a pusher c
connected to a rod d actuated by a connecting rod e and crank f fixed to the
pinion R². The coils of thread thus formed pass between two hollow, rollers G G¹
heated by gas introduced into them through two tubes hh branching from the
pipe H.
The rollers G G¹ by their rotation press the coiled thread on the mandril and
facilitate its issue therefrom.
For regulating the pressure of the rollers upon the thread their bearings 7 are
adjustable in a slide i, the roller G being regulated by a screw ; while G' is
regulated by a spring k.
The apparatus is actuated as follows:
On the same shaft as the crank I is fixed a toothed wheel J imparting motion to

page_text: two grooved pullies M N over which pass cords n, o.
The cord n drives the
bobbin carrier D, passing over the pullies OP; on the pulley P is fixed a toothed
wheel gearing with another wheel R fixed on the shaft S. On the other end of
the shaft S is fixed a pinion R¹ gearing with another pinion R on which is fixed
the crank that actuates the pusher o.
The other cord o serves to actuate the rollers G G³, for which purpose these are
mounted on axes q carried in bearings and having at their ends toothed wheels r
actuated by two worms 8 of contrary pitch, that are rotated by means of the
pulley t driven by the cord o by means of an endless chain m.
The machine can also be driven by power, for which purpose the shaft of the
crank I would be provided a fast and loose pulley. One and the same crank or set
of driving pullies may be made to impart motion to two or more machines.
For producing different effects in the coiled thread, the form of the mandril may
be varied; thus it may be made of a square section instead of round, the
rollers G G¹ being made with the correspondingly shaped grooves, pressing either
on the flat surfaces or on the angles; the grooves of the rollers may also be formed
with projections.
With this machine narrow fabrics such as tapes or laces may also be coiled.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be pe. Frined 1 declare that what
I claim is :-
The construction of machinery for curling and crisping threads or yarns wherein
the said threads are coiled by revolving bobbins round a mandril on which they
are acted upon by heated grooved rollers, and are at the same time made to travel
forward by a pusher.