Improvements in Rotary Shuttle Box Looms.
Year: 1890

page_text: Date of Application, 16th Aug., 1890
Complete Specification Left, 15th May, 189*--Accepted, 20th June, 189;
PROVISIONAL SPECIFICATION.
Improvements in Rotary Shuttle Box Looms.
I, ELIJAH KEIGHLEY, of Bankhouse Iron Works, Burnley, Lancashire, Power
Loom Maker, do hereby declare the nature of this invention to be as follows:-
In looms having rotary change shuttle boxes, it is customary to employ perforated
cards for selecting and changing the shuttle boxes containing differently coloured
weft, when weaving borders, stripes, checks, spots, and other like patterns. When
weaving some classes of fabrics, a very large number of perforated cards are
employed especially is this the case when squares are being woven, such as
pocket handkerchiefs having borders at each end, because when the loom is
weaving the plain part of the fabric, no change in the shuttle is required, but not-
withstanding this, plain or unperforated cards are used for every two picks of weft
until the border has to be woven, when perforated cards will be presented for the
purpose of changing the weft. The object of my invention is to lessen the number
of cards used when weaving the class of fabric above mentioned, and this I propose
to do by the employment of self acting mechanism.
In carrying out my invention I make use of the ordinary card pattern cylinder
surrounded with cards perforated to represent a given pattern, such cylinder and
cards being made to revolve first in one direction and then in the opposite direction
by means of a double hooked fork working on one fulcrum or stud. In combina-
tion with the ordinary card pattern cylinder I use another or auxiliary cylinder
surrounded with lags and pegs, which is employed to reverse the said cylinder as
hereinafter explained. When a given pattern has been woven, a stud or projection
rising from one of the pattern cards is made to act under a bell crank lever, the
opposite end of which places a hook into position for acting upon the auxiliary
cylinder, which is pulled over in such a manner as to reverse the card pattern
cylinder, whereby the pattern is changed, and this is effected by the same per-
forated cards, in consequence of their being reversed. The double hooked fork for
turning over the card pattern cylinder is first made to act in one direction and then
the other by the pegs in the lags surrounding the auxiliary cylinder, such pegs
operating a second bell crank lever, the opposite end of which controls the double
hooked fork.
Dated this 15th day of August 1890.
TASKER & CROSSLEY,
Halifax, Agents.
COMPLETE SPECIFICATION.
Improvements in Rotary Shuttle Box Looms.
I, ELIJAH KEIGHLEY, of Bankhouse Iron Works, Burnley, Lancashire, Power
Loom Maker, 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:-
In looms having rotary change shuttle boxes, it is customary to employ per-
forated cards for selecting and changing the shuttle boxes containing differently
coloured weft, when weaving borders, stripes, checks, spots, and other like patterns.
When weaving some classes of fabrics, a very large number of perforated cards are
employed; especially is this the case when squares are being woven, such as
pocket handkerchiefs having borders at each end, because when the loom is
weaving the plain part of the fabric, no change in the shuttle is required, but
Pine R1

page_text: notwithstanding this, plain or unperforated cards are used for every two picks of weft
until the border has to be woven, when perforated cards will be presented for the
purpose of changing the weft. The object of my invention is to lessen the number
of cards used when weaving the class of fabric above mentioned, and this I propose
to do by the employment of self-acting mechanism.
In order that my invention may be more fully understood, I will now proceed to
describe the same with reference to the annexed sheets of drawings, wherein
Fig. 1 is end elevation of a loom having my improvements applied thereto.
A represents the framework, B the tappet shaft, C the levers for setting into motion
other well known form of levers for rotating the boxes, which are selected by the
ordinary pattern cylinder D shewn in Fig. 2, having pattern cards E thereon, per-
forated or otherwise according to pattern of fabric being woven. It will be
observed that the top levers Care provided on their underside with a stud a
which drops into a perforation in the pattern cards E, when one is presented, or
otherwise as required, the lower and bent arm of these levers C acting on other
well known form of levers F. The pattern cylinder is turned over in the direction
of the arrow, after every two picks made by the loom, by the hook c, formed near
the top of the double hook G, pivoted at H to the vertical reciprocating rod I,
actuated by a tappet Jon the tappet shaft; the parts above described, with the
exception of the double hook G, being well known and forming no part of my
invention. On the same stud K which carries the pattern cylinder DI place an
auxiliary pattern cylinder L, shewn more clearly in Fig. 3, provided with lags d
and pegs or projections e. It will now be observed that the cards E are provided
with two or other number of studs or pegs and f, and when a plain portion of a
fabric is being woven, the hook is made to turn over intermittently the pattern
cylinder D, and when the second peg on the cards arrives underneath the bell
crank lever M, it is raised thereby, causing a loop N at the lower end thereof (see
Figs. 1 and 3) to push a hooked finger O, also attached to the vertical reciprocating
bar I, into such a position that on the next downward movement of the rod I, the
said hook will catch hold of a stud or peg, projecting from the flange P of the
auxiliary cylinder L, and rotate the said auxiliary cylinder a part of a revolution,
whereby the next lag d is presented, which said lag having a peg e thereon, causes
a second bell crank lever R to be raised into the position shewn in dotted line
Fig. 3, the result being that the bent finger attached to the short arm of lever R
forces the hook of double hook G into position for engaging with the studs i on
the flange of the pattern cylinder D, and simultaneously with the movement of
hook, the other hook is removed out of the way of the studs on the opposite
side of flange. By this means the pattern cylinder D will be rotated back or in
the opposite direction to that indicated by the arrow b, and the cards from to f
used over again, thus the number of cards are reduced. Now on the stud f being
presented under the bell crank lover M, so as to operate the hooked finger O, to
place the latter into position for partially rotating the auxiliary cylinder L, at the
next downward movement of reciprocating rod 1, another lag d is presented to
lever R, which has no peg thereon, so that the bell crank lever R drops and assumes
the position shewn in full line in Fig. 3, and thereby removes the finger / from the
double hook G, which thereupon moves on its pivot by its own weight, and places
the hook e again into the position shewn in full line in Fig. 2, by which means the
direction of motion of the cylinder D is changed, and the cards from to f¹ pre-
sented again and this goes on, that is to say, the cards between pegs and are
being continuously used, but when it is required to use the whole of the cards and
not to turn back, as already explained, I perform this operation by presenting the
second lag d without a peg underneath lever R, which lever would of course not be
operated, consequently the double hook G would remain in the position shewn in
full line, Fig. 3, permitting hook e¹ to continue to revolve intermittently the card
pattern cylinder D, until the stud is reached, when the bell crank lever M would
be actuated, and the auxiliary cylinder L operated so as to reverse the pattern
cylinder D.
C

page_text: It will therefore be understood, from the above description, that whether there
be one or more studs, such as f, attached to the pattern cards E, that their action
upon the bell crank lever M and auxiliary cylinder I will bring about a change of
lag d, which lag determines whether the rotary motion of the pattern cylinder D
shall be reversed or allowed to continue revolving in the same direction, and it is
by the arrangement of the studs on the pattern chain E, together with the
arrangement of the lags d, with and without pegs e, that I am enabled to reverse
the pattern cylinder any number of times, whereby the cards E between or on
either side of the stud or studs fmay be used over and over again; and by reason
of the above named reversal of the pattern cylinder and the use of the same cards,
the number of them will be greatly reduced.
The cards E are perforated or unperforated as usual according to the changes of
weft to be made, and they are arranged in combination with the studs according
to the number of times they have to be repeated or used in the production of the
pattern or figure being woven.
A flat spring bears upon the flange P of auxiliary cylinder L so as to prevent
excess of movement of said cylinder, and to prevent any independent movement
thereof through accidental causes.
Although have shown and described the auxiliary cylinder L to be on the
same stud K, they may be used apart and occupy different positions on 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
Firstly. In rotary shuttle box looms having a pattern cylinder and cards pro-
vided with studs, the combination therewith of an auxiliary cylinder and lags,
arranged substantially as herein shewn and described, and for purposes set forth.
Secondly. In rotary shuttle box looms with pattern cylinder and cards having
studs, and an auxiliary cylinder and lags, the combination therewith of the double
hook G and pulling down hook O, substantially as shewn and described.
Thirdly. In rotary shuttle box looms with pattern cylinder and cards having
studs, and an auxiliary cylinder and lags O, together with double hook G, and
pulling down hook O, the combination therewith of the bell crank levers M. and R
operated in the manner and for purposes set forth.
Dated this 14th day of May 1891.
TASKER & CROSSLEY,
Halifax, Agents.