Improved Means or Apparatus for Applying Frictional Resistance or Drag to Warp Beams in Looms for Weaving.
Year: 1891

page_text: Date of Application, 11th Nov., 1891
Complete Specification Left. 11th Aug., 1892-Accepted, 17th Sept., 1892
PROVISIONAL SPECIFICATION.
Improved Means or Apparatus for Applying Frictional Resistance
or Drag to Warp Beams in Looms for Weaving.
We JOHN MYERS of 107, Pine Street, Nelson, in the County of Lancaster
Overlooker, JAMES WALKER of 12, Vine Street Nelson Clothlooker, and
FRED TAYLOR of 98, Larch Street Nelson, Manufacturer, do hereby declare the
nature of this invention to be as follows:-
This invention is designed to apply frictional resistance or drag to the warp beam
in looms for weaving and to increase such frictional resistance to withstand the
beating up of the cloth and to diminish the said resistance whilst the shed is being
formed.
For this purpose we employ the usual loom chains which are coiled round the
beam in the ordinary way. Each chain is attached to a stationary bracket, whilst
the other end of the said chain is attached to a lever running from back to front in
the direction of the sley where it is connected by a wire or rod to a lever centered
upon a stud fixed to the loom frame. The connecting wire or rod is attached to
this lever on one side of the stud whilst a portion of the lever on the other side is
formed with a recess and is connected by a spring to the first named lever.
To increase or diminish the frictional resistance or drag for the purposes herein
above described, we mount a bowl on a stud fixed to the sley which traversing to
and fro will cause the bowl to alternately depress and relieve the said lever by
reason of the recess formed in it.
Dated this 11th day of November 1891
THOS. RICHMOND,
Agent.
COMPLETE SPECIFICATION.
Improved Means or Apparatus for Applying Frictional Resistance
or Drag to Warp Beams in Looms for Weaving.
We, JOHN MYERS of 107, Pine Street, Nelson, in the County of Lancaster,
Overlooker, JAMES WALKER of 12, Vine Street, Nelson, Clothlooker, and
FRED TAYLOR of 98, Larch Street, Nelson, Manufacturer, do hereby declare 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 is designed to apply frictional resistance or drag to the warp beam
in looms for weaving, and to increase such frictional resistance to withstand the
beating up of the cloth, and to diminish the said resistance whilst the shed is being
formed. For this purpose, we employ the usual loom chains, which are coiled
round the beam in the ordinary way. Each chain is attached to a stationary
bracket, whilst the other end of the said chain is attached to a lever running from
back to front in the direction of the sley, where it is connected by a wire or rod to
a lever centred upon a stud fixed to the loom frame. The connecting wire or rod
is attached to the lever on one side of the stud, whilst a portion of the lever on
the other side is formed with a recess, and is connected by a spring to the first
named lever.
herein
To increase or diminish the frictional resistance or drag for the purposes
above described, we mount a bowl on a stud fixed to the sley, which, traversing to
and fro, will cause the bowl to alternately depress and relieve the said lever by
reason of the recess formed in it.

page_text: In the accompanying drawings,
Fig. 1 represents a sectional elevation of a power loom constructed in accordance
with our said invention, and
Fig. 2 is a similar view representing a modification of our invention.
Referring to Fig. 1, A is the loom side; B the sley; C the warp beam; D the
"ruffle" or collar, which rests in a semi circular bracket E, one at each end of
the loom. To this bracket is secured one end of the chain F, and between the chain
and the "ruffle" or collar are interposed and attached to the chain small blocks
or sections G to prevent the wear of the chain. This chain is attached at its other
end, to the short end of the lever H, centred on the stud I, and extending from
back to the front of the loom. A rod J connects the lever H with the short arm
of the lever K. The long arm of the said lever is recessed at L, and is acted upon
by the bowl M carried by the sley B, which traversing by the movement of the
crank, alternately bears upon the shoulders N and O, imparting additional friction
or drag to the warp beam C during the beat up of the weft, and whilst the shed is
full open. The extremity of the long arm of lever K is connected by the spring P
to the lever H.
The requisite friction applied to the warp_beam is regulated by screwing down
the hand wheel or nut Q upon the rod J, so as to increase or diminish the
tension of the spring P.
In the modification represented in Fig. 2, the lever K is dispensed with, the
extremity of the long lever H being connected by spring S and adjusting screw or
rod J to the bracket R. By screwing or unscrewing the hand wheel or nut Q upon the
rod J, more or less tension is exerted by the spring S upon the lever H and chain F,
causing the friction blocks or sections G to grip more or less firmly the "ruffle " or
collar of the warp beam C, thereby imparting more or less frictional resistance
against the delivery of the yarn from the warp beam C.
It will be obvious that by the two foregoing arrangements, the delivery of the
warp may be regulated at the front of the loom, and in case of letting back the
warp, the tension or drag upon the warp beam may be instantly removed by
the weaver depressing the extremity of the lever H by means of his foot, when
he may then, by reaching over, turn the warp beam backwards by means of the
flange.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what
we claim is :-
1. In an apparatus for applying friction or drag to the warp beam, the combi-
nation of the levers H and K, bowl M, spring P and adjusting nut or wheel Q,
substantially as described and illustrated in Fig. 1.
2. In an apparatus for applying friction or drag to the warp beam, the applica-
tion of the lever H extending from front to back of the loom, spring S, and
adjusting nut or wheel Q, substantially as described, and illustrated in Fig. 2.
Dated this 10th day of August 1892.
THOS. RICHMOND,
Agent.