IMPROVEMENTS IN LOOMS FOR WEAVING LOOPED FABRICS
Year: 1880

page_text: PROVISIONAL SPECIFICATION left by the said Edward Hollingworth at the
Office of the Commissioners of Patents on the 26th February 1880.
EDWARD HOLLINGWORTII, of Dobcross, in the County of York, Machine Maker.
"IMPROVEMENTS IN LOOMS FOR WEAVING LOOPED FABRICS."
This Invention relates to looms for weaving looped pile fabrics, such as imitation
seal skin and similar goods, the loops in the fabrics being formed by means of wires
and the cutting of the pile effected by a knife formed at the end of the wire or by
a separate cutting instrument.
This Invention is intended to operate this class of loom in such a manner as to
stop the loom or cause it to "dwell,” giving time for the introduction and withdrawal
of the wires and cutting of the pile, and to restart the loom again by self-acting
mechanism.
On the driving or crank shaft is placed two pullies loose on the shaft, one being
the loose pulley and the other made into the driving pulley. On the driving pulley
is a boss onto which is fastened a pegging wheel, such pegging wheel having a
projection or clutch on one of its faces. On the crauk shaft is also a boss ou which
is a sliding clutch, or the clutch may be placed on the shaft and slide in a groove
but yet revolve with the shaft.
In connection with the pegging wheel is a star wheel having a cam on one of its
faces for operating upon a lever, one end of such lever being in contact with the
aliding clutch on the crank shaft, the other end connected by a spiral spring so
arranged that when the loom is at work the sliding clutch shall be in gear with
the clutch on the face of the pegging wheel, which in due time operates the star
wheel, bringing the cam into contact with the lever, which disengages the clutch
and stops the loom (when the operation of introducing and withdrawing the wires
and cutting the pile is effected), but immediately the can has passed the lever the
spiral spring slides the clutch into gear with the pegging wheel, and consequently
the driving shaft, when the loom is restarted again. The action of the pegging
wheel may be controlled from the pattern surface of the jacquard, sliding the peg in
and out of the way of the star wheel, so that when the peg is present the star wheel
is set in motion, but when the peg is absent the loom is at rest.
Instead of employing a pegging wheel and star wheel, gear wheels may be used
having a requisite number of teeth so as to produce the required revolutions.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Edward Hollingworth in the Great Seal Patent Office on the 26th
August 1880.
EDWARD HOLLINGWORTH, of Dobcross, in the County of York, Machine Maker.
"IMPROVEMENTS IN LOOMS FOR WEAVING LOOPED FABRICS."
E
This Invention relates to looms for weaving looped pile fabrics, such as imitation
seal skin and similar goods, the loops in the fabric being formed by means of wires
and the cutting of the pile effected by a knife formed at the end of the wire or by
a separate cutting instrument. This Invention is intended to operate in such a
manner as to stop the loom or cause it to "dwell," giving time for the introduction 1
and withdrawal of the wires and cutting of the pile, and to re-start the loom again
by self-acting mechanism.
In order that the Invention may be more fully understood reference is given to
the accompanying Sheet of Drawings illustrative thereof.
Fig. 1 is part elevation of the back of a loom shewing my improvements. A is 1
the crank shaft upon which is the loose pulley B and the driving pulley C keyed
upon a long boss D, all of which run loose upon the crank shaft. Upon the boss D
is keyed or otherwise fastened a pegging wheel E provided with a projection or
lug 6. On the crank shaft is another boss G which is fastened thereon, and upon
this boss is a sliding clutch H with a projection or lug h capable of gearing with
the lug e on the pegging wheel E.
In connexion with the pegging wheel E is a star wheel I, and J is a cam for
operating the lever K which slides the clutch box H out of gear with the pegging
wheel, and M is a spiral spring for operating the lever K in the opposite direction
and throwing the clutch into gear; Fig. 2 is a section of some of the parts; and
Fig. 3 is an end view shewing pegging and star wheel motion.
The action of the apparatus is as follows:-
When the loom is going the strap is placed on the driving pulley B, and the
lugs e and h are in gear, as shewn in the Drawing; when however the weft has
been sent across the loom a sufficient number of times, and it is requisite for the
loom to stand in order that the warp may be cut to form the pile, the peg 6 of the
pegging wheel e at each revolution takes into gear with the star wheel I, turning it
around a quarter of a revolution, which in due time causes the cam J to come into
contact with the pulley c on the lever K, operating the lever in such a manner as to
slide the clutch box H on the boss G, disengaging the projections or lugs e and h,
and at the same time actuating the rods R and S, applying the brako T to the fly-
wheel U, which instantaneously stops the crank shaft and prevents the loom making
another pick, also giving time for the attendant to withdraw one wire and introduce
another, and also time for cutting the pile; but immediately the cam J has passed
the pulley c the spiral spring M acts upon the lever in the other direction, sliding
the clutch H upon the boss G, and placing the lugs e and h once more into gear, and
the loom is immediately restarted. Instead of the peg b in the pegging wheel being
fastened it may be loose, capable of sliding end wise, and be operated by a lever from
the pattern surface of the jacquard, sliding the peg in and out of the way of the
star wheel, so that when the peg is present the star wheel is set in motion, but
when the peg is absent the star wheel remains at rest.
Instead of the peg wheel E and star wheel I, I may employ a small toothed
wheel on the boss D gearing with another toothed wheel of considerably larger
diameter, the latter wheel being connected with the cam J, which would thereby
receive the necessary slow revolving motion, which in this case would be continuous
instead of being intermittent.
Having thus described the nature and particulars of this my Invention, together
with the manner in which the same is to be or may be performed or carried into

page_text: practical effect, I would have it understood that what I claim as my Invention
18,-
Firstly. The use of the pegging wheel E and star wheel I, for the purpose herein
shewn and described.
Secondly. The use of the clutch H, lever K, and cam J, substantially as and for
the purposes herein shewn and described.
Thirdly. The employment of mechanism for stopping and re-starting a loom
automatically, in manuer substantially as herein shown and described.
In witness whereof, I, the said Edward Hollingworth, have hereunto set
my land and seal, this Twenty-fourth day of August, in the year of our
Lord One thousand eight hundred and eighty.
EDWARD HOLLINGWORTH. (L.S.)