Im- PROVEMENTS IN THE MACHINERY EMPLOYED IN THE MANUFACTURE OF CARPETS
Year: 1870

page_text: LETTERS PATENT to Archibald Turner, of Leicester, in the County of
Leicester, Elastic Fabric Manufacturer, for the Invention of "Im-
PROVEMENTS IN THE MACHINERY EMPLOYED IN THE MANUFACTURE OF CARPETS."
Sealed the 16th December 1870, and dated the 10th August 1870.
PROVISIONAL SPECIFICATION left by the said Archibald Turner at the.
Office of the Commissioners of Patents, with his Petition, on the
10th August 1870.
I, ARCHIBALD TURNER, of Leicester, in the County of Leicester,
Elastic Fabric Manufacturer, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN THE MACHINERY EMPLOYED IN THE MANUFACTURE.
OP CARPETS," to be as follows :-
The first part of my Invention of improvements in the machinery.
employed in the manufacture of carpets relates to improvements upon
the carpet loom for which I, in conjunction with W. E. Newton, obtained.

page_text: Letters Patent, dated March 26th 1867, No. 899. This improvement
relates to the mode of actuating the lever whereby the thread carrier and
the instrument for drawing in the wires are carried into the shed. The
object of this improvement is to ensure a dwell at a certain part of the
stroke, so that these instruments may not be drawn out unnecessarily far
but will remain stationary while the crank is moving through part of
its revolution. This is effected by causing the crank pin to act against
a cam piece or cam slot connected to or forming part of the lever. The
crank is provided with two bowls or rollers which embrace the cam
piece and keep it steady while the crank is rotating,
The next improvement has for its object to prevent the thread carrier
and wire carrier from rebounding or shaking when suddenly brought to
a stand still at the end of their course. In this construction of loom
the carriers are connected to slides which move to and fro on a rocking
shaft, which as it rocks throws them in and out of gear. The thread carrier
makes two picks in succession and is then thrown out of gear, and the
wire carrier being at the same time thrown in gear in order to allow it
to pass through the shed, and when the latter has performed its functions
it is in its turn thrown out of gear, and the thread carrier is brought
again in gear, so as to commence operations a second time. This
throwing in and out of gear is produced by means of a cam connected
to the rocking shaft. I have found that these instruments when suddenly
brought to a stand are apt to rebound and tremble, and in order to
prevent this the carrying instruments (when rocked so as to be thrown
out of gear) are received on to a fixed pin or pins, which will hold them
steady. Instead of placing the weft thread carrier and wire carrier on
the same side of the machine, and working them in succession by the
same lever and gearing as above described, I sometimes place the wire
carrier on the opposite side and work it by means of independent gearing.
When I adopt this arrangement the bow at the head of the wire is seized
by a reciprocating spring clip which works on guides, and is moved to
and fro by means of a vibrating lever, By moving this spring clip
forward the wire is pushed through the shed, and it is disengaged from
the spring clip by means of a pointed instrument attached to and working
with the batten, by the advance of which it is thrust through the eye or
how at the head of the wire. The retreat of the spring clip will leave
the bow of the wire on the pointed instrument, and it will be beaten up
by the batten, and alternately held in its place by the change of the

page_text: shed. The wires are drawn out of the fabric at the proper time by means
of a reciprocating draw hook which catches hold of the bow and draws it
back, and then transfers it to the introducing apparatus above mentioned.
As it will be possible by using the wire motion above described to intro-
duce both wire and weft at the same time my Invention is capable of
being used in either a double or single shed loom, as may be desired.
My next improvement relates to a weft stopping apparatus for stopping
the loom in the event of the weft breaking or failing from any cause.
This improvement is intended to be applied to looms constructed on the
principle of my former Patent already referred to, in which the weft
thread is wound upon a large stationary bobbin from which it is drawn
off and carried into the shed by a reciprocating arm or thread carrier.
In adapting my weft stopping apparatus to a thread carrier of this kind
I mount at any convenient part of the loom a light rocking lever provided
at one end with an eye or slot through which is passed the weft thread
as it is conducted from the large fixed bobbin to the thread carrier. While
the weft remains unbroken it will support this end of the rocking lever
in a given position, but when the weft fails the lever being no longer
supported will drop and will tilt up the opposite end of the lever, which
carries a disc, button, or block. The rising of this end of the lever will
bring this disc, button, or block opposite to the end of a rod, which is`
carried forward at every beat of the batten, and at the next forward
motion of this rod it will come in contact with the disc or block on the
end of the rocking lever, and will push back out of its notch the hand
lever, whereby the driving band is shifted from the fast to the loose
driving pulley, and thus throw the strap off the driving pulley and stop
the loom.