Year: 1886

page_text: Date of Application, 8th Oct., 1886.
Complete Left, 4th July, 1887.
Complete Accepted, 5th Aug., 1887.
do hereby declare the nature of this invention to be as follows:-
The object of this invention is to deliver the yarn from the yarn roller in a positive
and uniform manner and in conformity with the taking up of the cloth that is to say
the surface speed of the yarn upon the roller will be uniform whatever may be its
diameter.
To depend upon the frictional slip or drag of the yarn roller as is now the case on
the ordinary system for the delivery of yarn is very uncertain and often produces
uneven and streaky cloth whilst the tension of the warp or yarn from time to time
requires constant attention and regulation. By this invention of improvements these
defects are effectually disposed of and each piece of cloth woven will contain an equal
and uniform length of yarn.
In carrying out the invention the yarn roller is arranged so as to rest upon a drum
or roller which may be adjustable to any width of warp and actuated in a positive and
uniform manner from the taking up motion through the medium of a pair of sprocket
wheels in combination with an endless chain and one or more pinion wheels one of
which may be used as a change wheel to adjust the speed of the delivery roller or
drum in accordance with the counts of weft being used. This drum or roller may be
covered with cloth or other elastic material to facilitate the holding and consequent
draft of yarn.
A tension roller may be used and placed under the yarn so as to cause it to more
fully encircle the drum or delivery roller or the yarn roller may be weighted so as to
cause the peripheries of the yarn and delivery rollers to nip each other and thereby
prevent any slip or tendancy to deliver the yarn in excess of that actually delivered
by the revolving movement of the drum or delivery roller.
It is preferred to fix one of the chain or sprocket wheels to the beam wheel and
secure both to the neck of the taking up roller by a thumb screw so that when required

page_text: to remove the cloth from the cloth roller it is simply requisite to relieve the pressure
of the thumb screw from the neck of the taking up roller when the disengagement of
the said roller is instantly effected and the cloth at liberty to be removed.
It will be obvious that when the taking up motion is adjusted to any number of
picks a corresponding or proportionate effect will be communicated to the delivery
roller which is so arranged that the yarn may be at liberty to be let back without any
adjustment or re-adjustment of the motion. This may be effected by means of a
spring catch fixed to the driving wheel or pinion which is loosely mounted on the neck
of the delivery roller. This catch is at all times capable when moved in a forward
direction of engaging with the teeth of a ratchet wheel fixed to the neck of the
delivery roller. By these means the yarn roller may be turned back by hand to
tighten or rewind the warp.
If desired two delivery rollers may be used in contact with each other and actuated
from the taking up roller. The yarn from the yarn roller is delivered to the healds
from between the nip of these two rollers in an uniform manner.
Dated this 7th day of October 1886.
THOS. RICHMOND,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in and relating to the Delivery of Warp from Beams
in Looms for Weaving.
I, THOMAS MASON of Primet Mills, Colne, in the county of Lancaster, 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 essentially relates to the arrangement of certain parts of the loom,
known as the taking up and letting off mechanism; and the peculiar feature consists
in so combining the parts, as to ensure an uniform and positive delivery of the warp,
with little or no strain upon the taking up mechanism by which it is governed, whilst
to meet the requirements as they occur, from time to time, in changing from finer to
coarser wefts, and to provide more or less warp for the intersection of such finer or
coarser materials, a novel arrangement of change and gear wheels is provided in
addition to those employed in the taking up motion.
And in order that my invention may be properly understood and readily carried
into practical effect I have hereunto attached the accompanying sheet of drawings,
marked with figures and letters of reference, the same letters referring to the same
parts in the various figures. Fig. 1 is and end elevation of a loom, to which my
improvements are applied; Fig. 2 is a partial back view; and Fig. 3 represents
my improvements detached from other parts of the loom.
The framing A of the loom is of the usual kind, as are also yarn roller B and
measuring or taking up roller C; to the arbor of the latter is secured the sprockett or
chain wheel D, connected by an endless chain E, to the sprockett wheel F, loosely
mounted on stud G, fixed to the loom frame. To the sprockett wheel F is secured
toothed wheel H, in gear with the carrier wheel J, fixed to the spindle or arbor K, of
the feed or delivery roller L. This roller is supported by bracket M, to the loom
frame or to the back rest N, seen in dotted lines Fig. 1, from which bracket projects
the arm O having a radial slot O', in which the stud H₁ of the carrier or intervening
wheel I is fixed.
The warp to be woven is conveyed from the yarn roller B, over the guide roller P,
under and around the feed or delivery roller L, from whence it passes under guide
roller R, over the back rest N, through healds S, to the taking up or measuring
roller C.
It would appear at first sight when referring to Fig. 1, that the taking up motion
was intended to drive the delivery or feed roller L, through the medium of endless
chain E and sprockett wheels D and F. This is not the case, as the traction line of
the chains is on the underside of the sprockett wheels, and is therefore drawn or
taking up, and held tight, by the delivery motion, whilst being acted upon by the

page_text: tension of the warp. The taking up motion simply governs the delivery of the warp
in accordance with the taking up of the cloth, by paying out sufficient chain, slowly
and continuously as may be required for that purpose.
This important feature necessarily relieves the taking up motion from considerable
strain, and renders the working part of such motion more durable than by the ordinary
let off or delivery motions.
I find it injurious to the yarn, to nip the warp between the feed roller L and guide
roller P, as described in my provisional. I, therefore, place the guide roller P, as
seen in Figs. 1 and 3, so as not to bear against the feed or delivery roller, which feed
or delivery being covered with cloth or other like adhering substance, is sufficient to
hold and prevent the warp from slipping over the surface of the feed roller, especially
when the warp is made to embrace the feed roller in the manner seen in Fig. 1.
When increasing or diminishing the number of picks in the cloth, which is effected
in the usual manner by the ordinary change wheels of the taking up motion, a
corresponding delivery or feed of warp is simultaneously effected; the delivery
motion seldom requiring readjustment, unless whilst changing from finer to courser
wefts, when a lesser or larger change wheel is substituted for the change wheel J
shewn on the drawings. The stud of the intervening wheel I is capable of adjustment
in the radial slot O', to any desired position, to gear with any size of change wheel,
and, at the same time, will be constantly in gear with toothed wheel H, by which the
change is more readily effected.
To facilitate the removal of the cloth, when required, the chain wheel D is secured
to the arbor of the measuring roller by set screw U, which may be slackened when
required for this purpose.
It will be evident by the combination of the taking up with letting off motion as
above described, the warp will be delivered in an uniform and positive manner, and
in accordance with the woven fabric taken up, and independent of the varying
diameter of the yarn roller.
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
The general arrangement and combination of the taking up with the letting off or
delivery motions and parts connected therewith substantially as described and illustrated
on the drawings.