Improved Apparatus for Regulating the Letting Off of Warp from the Warp Beams of Looms for Weaving.
Year: 1894

page_text: Date of Application, 2nd June, 1994
Complete Specification Left, 1st Mar., 1895-Accepted, 6th Apr., 1805
Improved Apparatus for Regulating the Letting Off of Warp from
the Warp Beams of Looms for Weaving.
'
I WILLIAM WARRINGTON of Fairfield Mills Droylsden in the County of
Lancaster, Manager, do hereby declare the nature of this invention to be as
follows:-
This invention relates principally to looms used in the manufacture of terry or
looped pile fabrics, the object being to deliver the pile warp so regularly that the
terry or pile shall be of equal length throughout the "piece woven.
My apparatus is constructed and applied as follows:-
"
Upon the axle of the terry warp beam, I fix a change pinion of suitable size,
smaller or larger according as a longer or shorter length of pile or terry loop is
desired.
This pinion drives, by a suitable train of gearing, a short shaft upon which I fix
a disc about equal in diameter with the flange of the warp beam. In this disc
I form a series of circular and concentric rows of holes, countersunk conically on
one side, and all equidistant from each other in a circumferential direction, the
rows however being as near to each other as can be conveniently arranged, the
centres of the outermost row of holes being in a circle equal in diameter to that
of the warp on the beam when full, and the innermost row being in a circle equal
to the diameter of the warp beam.
As the latter revolves when the warp is unwound therefrom by the beat up of
the reed, when fast, it will cause the disc to revolve also, and as soon as the proper
quantity of warp has been taken off the beam a spring bolt engages in one of the
holes in the disc, and thus stops the latter and with it the warp beam and prevents
any excessive delivery of warp; and in order to allow for the gradual diminution
in diameter of the warp upon the beam, I cause the bracket which carries the said
spring bolt to move gradually nearer to the centre of the disc. The spring bolt is
brought into contact with the disc, preferably by the means hereafter described,
between two of the holes and bears against the same until the revolution thereof
causes the end of the bolt to run down the incline of the countersunk part of the
hole in the row determined by the position of the bracket which carries the said
bolt. The holes being equidistant from each other, the length of the terry or pile
warp let off at each beat up of the reed, when fast, will be equal.
After the beat up aforesaid the spring bolt is withdrawn and a break applied to
the periphery of the dise to prevent accidental revolution thereof.
By these means the "swag-weights" usually applied to the warp beams can be
dispensed with.
The movements above described are by preference obtained by the following
means:-
The bolt which engages in the holes of the disc is a tapered pin or peg, projecting..
from a light bar capable of sliding vertically and also rocking upon a pin fixed to
a bracket attached to a sliding plate or bar. The latter is provided with, a vertical
slotted bracket in the slot of which works a stud adjustably fixed to a lever upon
a light shaft which carries also a second lever or arm, provided at its free end with
a broad bowl or roller resting upon the warp on the beam, so that the diminution
in the diameter of the roll of warp on the beam will cause the said broad bowl or

page_text: roller to descend and move the shaft gradually, thereby acting on the first named
lever thereon and moving the sliding plate or bar above named, and with it the
bracket carrying the bolt, nearer to the centre of the disc. The bracket carrying
the bolt gives the same circumference on the disc as the warp.
A spring provided with a suitable antifriction bowl bears against the back of the
bar to which the bolt is fixed, and at the required moment, after the beat up of
the reed to form a loop of terry, a crank upon a light shaft mounted between the
dise and the last named bar overcomes the force of this spring and pushes back
the said bar, withdrawing the bolt from the disc.
At the same time a suitable lever is acted upon by a spring, to put a brake on
the edge of the disc.
When the bolt is withdrawn the bar which carries it is pushed still further back,
and an inclined projection thereon comes against a bowl on a fixed stud and causes
the said bar to be raised slightly, and thus to raise the bolt so that when it is next
brought against the disc it cannot slip into the same hole from which it was with-
drawn but as the disc revolves, the break having previously been taken off, the,
said bolt will enter the next hole and the disc will carry it and the bar with it,
sliding the latter end wise upon the fixed pin or stud above named, until its end
abuts against the framework of the loom and stops further motion of the disc.
The crank and. the break may be moved by projections upon a rod or link
attached to a lever actuated by a pattern chain on the pattern shaft which locks
and unlocks the reed, or by other convenient mechanism.
Dated this 1st day of June 1894.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.
Improved Apparatus for Regulating the Letting Off of Warp from
the Warp, Beams, of Looms for, Weaving.
I WILLIAM WARRINGTON of Fairfield, Mills Droylsden, in the County of
Lancaster, Manager,, do hereby declare the nature of this invention and in what
mauner the same is to be performed to be particularly described and ascertained
in and by the following statement:
7+
This invention relates principally to looms, used in the manufacture of terry or
looped pile fabrics the object being to deliver the pile warp so regularly that the
terry or pile shall be of equal length throughout the "piece" woven.
My apparatus is constructed and applied as follows:
Upon the axle of the terry warp, beam I fix a change pinion of suitable size,
smaller or larger according as a longer or shorter length of pile of terry loop is
desired.
This pinion drives, by a suitable train of gearing, a short shaft upon which
I fix a disc about equal in diameter with the flange of the warp. beam. In this disc
1 form a series of circular and concentric rows of holes, countersunk conically on
one side, and all equidistant from each other in a circumferential direction, the
rows however being as near to each other as can be conveniently arranged, the
centres of the outermost row of holes being in a circle equal in diameter to that of
the warp on the beam when full, and the innermost row being in a circle equal to
the diameter. of the warp beam..
As the latter revolves when the warp is unwound therefrom by the beat up of the
reed, when fast, it will cause the disc to revolve, also, and as soon as the proper
quantity of warp has been taken off the beam, a spring bolt engages in one of the
boles in the disc, and thus stops the latter, and with it the warp beam, and prevents

page_text: any excessive delivery of warp; and in order to allow for the gradual diminution
in diameter of the warp upon the beam, I cause the bracket which carries the said
spring bolt to move gradually nearer to the centre of the disc. The spring bolt
is brought into contact with the disc, preferably by the means hereafter described,
between two of the holes, and bears against the same until the revolution thereof
causes the end of the bolt to run down the incline of the counter-sunk part of
the hole in the row determined by the position of the bracket which carries the said
bolt. The rows of holes must be so close together that the bolt having left one
hole cannot miss the next hole in the same or the adjacent row. The holes being
equidistant from each other, the length of the terry or pile warp let off at each
beat up of the reed, when fast, will be equal.
After the beat up aforesaid the spring bolt is withdrawn and a break, applied to
the periphery of the disc to prevent accidental revolution thereof.
By these means the "swag-weights" usually applied to the warp beams can be
dispensed with.
In order that my invention may be clearly understood I have annexed hereunto
two sheets of drawings illustrative of one method of carrying the same into practical
effect which will be readily understood from the following explanation thereof.
Fig. 1 Sheet 1 is a back view, and Fig. 2 (Sheet 2) a side elevation, of so
much of a terry loom as is necessary to illustrate the application of my
invention.
Figs. 3, 3, 3, and 4 are detached views hereafter more particularly referred to.
a represents the terry warp beam a' the flange thereof and at the terry warp;
bis the pinion thereon driving through the gearing the shaft c as above
described upon which the disc d'is mounted; d' represents a few of the perforations
in the disc d.
The break above named may be in the form shewn at on Fig. 2 provided
with teeth engaging in ratchet teeth or serrations on the edge of the disc d.
The movements above described are by preference obtained by the following
means :
The bolt e (see Figs. 3, 34, and 3B) which engages in the holes of the disc is a
tapered pin or peg projecting from a light bar e', capable of sliding vertically and
also rocking upon a pin or neck e² fixed to a bracket et attached to a sliding
plate or bar ³, see Fig. 3. The latter slides upon the antifriction bowls e
(see Fig. 4), and is connected by a link e' (or otherwise) to a lever e³ upon a light
shaft which carries also a second lever or arm e provided at its free end with a
broad bowl or roller e resting upon the warp at on the beam a, so that the
diminution in the diameter of the roll of warp on the beam will cause the said
broad bowl or roller e to descend and move the shaft & gradually, thereby acting
on the first named lever e thereon and moving the sliding plate or bar e³ above
named, and with it the bracket et carrying the bolt e, nearer to the centre of the
disc d. The bracket carrying the bolt thus gives the same circumference on the
disc as the warp.
A spring provided with a suitable antifriction bowl, or a light cranked rod g
acted upon by the spring g² and lever g', bears against the back of the bar el to
which the bolt e is fixed, and at the required moment after the beat up of the reed
to form a loop of terry, a crank upon a light shaft h mounted between the disc d
and the last named bar e overcomes the force of this spring g² and pushes back
the said bar el, withdrawing the bolt e from the disc. At the same time the
lever is acted upon by a spring to put a brake on the edge of the disc d.
When the bolte is withdrawn, the bar which carries it is pushed still further
back, and an inclined projection thereon (see also Figs. 3 and 3*) comes against
a fixed stud elo (or a bowl thereon) and causes the said bar e' to be raised slightly,
and thus to raise the bolt e, so that when it is next brought against the disc d it
cannot slip into the same bole from which it was withdrawn; but as the disc d
revolves, the breakf having previously been taken off, the said bolt e will enter
the next hole and the disc d will carry it and the bar with it, sliding the latter

page_text: end wise upon the fixed pin, neck, or stud e², above named, until its end abuts against
the framework of the loom at i and stops further motion of the disc d.
The crank and the break f may be moved by projections 1 and 2 respectively
upon a rod or link k attached to a lever l actuated by a pattern chain on the
pattern shaft which locks and unlocks the reed, or by other convenient
mechanism, such as the cam m driven through the gearing mm² from the crank
shaft n of the loom.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
:-
1. The combination with the warp beam of a disc rotated thereby and provided
with a number of concentric rows of equidistant holes into which a spring bolt is
engaged when the required amount of warp has been unwound, to arrest the
further rotation of the disc and warp beam, the said spring bolt being gradually
moved by suitable means towards the centre of the disc as the diameter of the
roll of warp on the beam decreases, substantially as hereinbefore described.
2. The improved apparatus for regulating the letting off of the warp from the
warp beams of looms for weaving constructed and operating substantially as
hereinbefore described and illustrated by the annexed drawings.
Dated this 28th day of February 1895.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.