Improvements in or connected with the Change Box Motion of Fancy Looms.
Year: 1893

page_text: Date of Application, 30th Jan., 1893
Complete Specification Left, 28th Oct., 1893-Accepted, 30th Jan., 1894
PROVISIONAL SPECIFICATION.
Improvements in or connected with the Change Box Motion of
Fancy Looms.
We, CHARLES Edward MIDDLETON, FRANCIS PHILIP MIDDLETON, ÅRTHUR
THOMAS MIDDLETON, Manufacturers, and AxDrew Jack, Mauager, all of
Adlington in the County of Lancaster, do hereby declaro the nature of this
invention to be as follows:-
It refers to the class of looms similar to those known as Shaw's check looms and
consists in certain improvements whereby we are enabled to weave any even
number of picks to a card we desire of to reverse the motion of the cards
automatically and thus employ one series instead of two to produce certain
patterns.
"
To accomplish this we pivot upon the end of the loom frame in a convenient
position near the main lever a suitable rimmed drum round which passes an endless
chain with cam liuks. The drum receives its motion from a catch attached to the
main lever which works or takes in a ratchet wheel formed upon or otherwise
attached to the drum.
This catch is formed in such a manner that by means of suitablo rods which
connect it with the card drum, projections fixed upon the sides or other convenient
part of the card chain can raise it in such a manner as to prevent it from taking in
the ratchet wheel attached to the chain drum.
In a suitable position near the chain drum is pivoted, by its centre, a lever one
end of which rests upon the endless chain and is raised or depressed by its cam
links, and the other is formed into a suitable hook or catch which when the inner
end of the lover is raised by the cam liuks, prevents the main lever of the loom
from taking a full stroke, thus causing the loom to work from one card until the
main lever is released by a smaller link allowing the hook to rise.
By suitably connecting this pivoted lever with the oatches of the main lever we
are enabled to cause the card chain to automatically reverse its motion at stated
intervals and work the card chain backwards, thus reversing the pattern with the
same series of cards.
The foregoing applies to a Shaw's loom of the old pattern, with a Shaw's loom
of the new pattern in which the card drum is at the top of the end of the loom, we
attach the chain drum to the card drum and by means of two levers pivoted to the
loom frames, one of which rests upon the cam chain and stops the card chain, by
means of a suitable catch which holds the operating ratchet, which catch the other
lever releases at the proper moment when the cam chain allows it to fall.
The foregoing mechanism we preferably employ in conjunction with that
described in our Specifications Nos. 14126 of 1884 and 2156 of 1886.
Dabad this 08th day of Jan1902

page_text: •
Improvements in or connected with the Change Box Motion of
Fancy Looms.
We, CHARLES Edward MiddlETON, FRANCIS PHILIP MIDDLETON, ARTHUR
THOMAS MIDDLETON, Manufacturers, and ANDREW JACK, Manager, all of
Adlington, in the County of Lancaster 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 :-
It refers to the class of looms, similar to those known as Shaw's check looms,
and consists in certain improvements whereby we are enabled to weave any even
number of picks to a card we desire or to reverse the motion of the cards
automatically and thus employ one series, instead of two or more, to produce
certain patterns.
0
To accomplish this we pivot upon the end of the loom frame in a convenient
position near the main lever a suitable rimmed drum round which passes an endless
chain with cam links.
The drum receives its motion from a catch attached to the main lever which
works or takes in a ratchet wheel formed upon or otherwise attached to the drum.
This catch is formed in such a manner that by means of suitable rods which connect
it with the card drum, projections fixed upon the sides or other convenient part of
the card chain can raise it in such a manner as to prevent it from taking in the
ratchet wheel attached to the chain drum.
In a suitable position near the chain drum is pivoted by its end or centre a lever,
one side of which rests upon the endless chain and is raised or lowered by its cam
links, and its end is formed into a suitable hook or catch which when the inner end
of the lever is allowed to rise by the cam links, prevents the main lever of the loom
from taking a full stroke, thus causing the loom to work from one card until the
main lever is released by a larger link raising the hook.
By suitably connecting this pivoted lever with the catches of the main lever we
are enabled to cause the card chain to automatically reverse its motion at stated
intervals and work the card chain backwards thus reversing the pattern with tho
same series of cards, and by suitably connecting it with the box motion we are
enabled to also automatically reverse the sequence of colour.
The foregoing applies to a Shaw's loom of the old pattern; with a Shaw's loom of the
new pattern in which the card drum is at the top end of the loom, we attach the chain
drum to the card drum dispensing with the connecting rods, and regulate the change
motion by means of levers pivoted to the loom frame, one of which rests upon the cam
chain and stops the card chain, when it is lifted by the cam chain, by means of a
suitable catch which holds the operating ratchet, which catch is released at the
proper moment by the cam chain allowing the lever to fall.
Referring to the drawings sent herewith, Fig. 1 is a side view and Fig. 2 a plan
of the apparatus without the reversing motion, Fig. 3 a side view of the apparatus
with the reversing motion, Figs. 4 and 5 a side view and plan of the apparatus as
applied to a Shaw's loom of the new pattern, and Figs. 6 and 7 a side view and
plan respectively of the box reversing apparatus. a indicates the cam drum, with
the cam chain b, receiving its motion from catch upon main lever d. Upon the
cam chain b rests friction roller e 2 of pivoted lever e.. So long as the lever e is kept
up by large cam links on cam chain the main lever d works with a full stroke
passing a card every two picks until a small link upon the cam chain b allows the
levere to fall, when catch e3 on lever e falls over the end d 2 of main lever d
preventing it from taking a full stroke, stopping the card chain and causing the
loom to work from one card until levere is raised by a larger link on cam chain b.
The rotation of cam drum a is further regulated by means of two smaller levers gi

page_text: and h pivoted at one end beneath the card drum k. The levers g and h are
retained in position by springs and are depressed by projections or cams ₤2 upon
the two sides of the card.chain f. Lever is connected by connecting rod 9 2 to
catch e and when depressed by a cam ƒ2 raises the c and prevents it from taking in
the ratchet wheel of cam chain drum a. Lever is retained in position when
depressed by the pivoted lever catch Z until another cam ƒ2 upon the card chain
depresses lever hand so releases it.
Referring to Fig. 3, the motion of the card chain is reversed by the falling of
the lever which reverses the catches m and n on the card drum & by means
of connecting rod o, the other end of the lever e reverses the boxes at the same
time by means of connecting rod p, pivoted lever r, connecting rods, pinion and
rack u, causing the jaw y 2 on card rod y to take on flange a 2 on box rack .. In
Figs. 4 and 5 the cam drum a is pivoted on the spindle of the card drum k and
actuated by catch e pivoted on the loom frame v. Upon the cam chain & rests
lever e pivoted upon the looin, frame r, when raised by a large link the catch or
projection 3 raises the card drum catch mand so stops the card chain until
a smaller link upon the cam chain & allows the levere to drop and so releases it.
The rotation of the cam drum a is regulated by means of the levers g and h
pivoted on bracket w on loom frame v. The levers g and are raised by the
cams 2 upon the card chain f. Lever g is connected by projection c 2 to catch a and
when lifted by a cam 2 raises the catch and prevents it from taking in the
ratchet wheel of cam drum a.
Lever g is retained in position when raised by the pivoted lever catch / until
another cam f2 raises lever hand so releases it.
Spiral springs are used to retain in position, or give motion to the levers when
required.
The foregoing mechanism we preferably employ in conjunction with that described
in our Specifications Nos. 14126 of 1884 and 2156 of 1886.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is ;-
The combined apparatus, substantially as described and shown hereinbefore, and
in the accompanying drawings, in Figs. 1 and 2, Figs. 3, 6 and 7, and Figs. 4 and 5
respectively for the purposes set forth.
Dated this 27th day of October 1893.
JOHN HENRY TOPHAM,
984, Market Street, Manchester, Agent to Applicants.