Year: 1887

page_text: Date of Application, 25th June, 1887
Complete Left, 23rd Mar., 1888
Complete Accepted, 27th Apr., 1888
J, WILLIAM JOHN RILEY, of Colne, in the County of Lancaster, manufacturer, do
hereby declare the nature of this invention to be as follows:-
The improvements relate to Leno weaving, and have for objects the reduction of
friction upon the yarn at the time of the "cross," and to enable double lift jacquards
to be employed with facility for this class of weaving.
To accomplish these objects and to effect my improvements, I provide a slack-
taking-up or tension motion, for the warp yarn, of a special character, and a special
lifting motion for that portion of the healds or harness carrying the ends over which
the dupe healds or harness cross, in such manner that, at any or every pick, the warp
yarns are sufficiently lifted to attain a position at which the cross or leno may take
place with a small amount of friction.
To form the slack-taking-up or tension motion, I use a set of harness and lingoes
at the back of the loom, through which that portion of the warp yarn is passed, after
leaving the back beam or rest, which is actuated by the dupe healds, and thus requires
to be let slack at the time of the "cross." The yarn, after passing through this
harness, is passed underneath a rod or roller, and thence to the ordinary harness.
These back healds or harness are so set as to be in a lifted position during the
operation of plain weaving, and are held in this lifted position by being attached to
the ends of levers fixed or turned on a fulcrum or fulcrums above, and counter-
balanced by springs or other elastic means. The ends of these levers connected with
the springs are attached by strings or wires either to hooks in the jacquard set apart
for the purpose, or to the hooks actuating the leno harness, so that when the same are
lifted the ends of the levers carrying the tension harness are depressed, and the
lingoes allowed to pull down the yarn, and thus slack it out for the "cross to take
place.
"
The special or extra lifting motion for the weaving harness or healds is applied only
to that portion carrying or actuating the yarn over which the dupe healds or harness
cross, and may be formed as a lifting cumberboard, or supplementary lifting cumber-
board, or a lifting bar, for carrying extra lifting wires, fitted underneath or attached
to the jacquard apparatus itself.

page_text: In case motion is given to a cumberboard, the same is detached from the cumber-
board or boards carrying the remainder of the healds or harness, and is mounted on
levers, or in slides, or other mechanical means, and caused to lift by cam or crank, or
equivalents, at any or every prick, such a distance as may be necessary to enable the
cross to take place with reduced strain. The healds or harness passing through
the holes in the board are stopped by knots, beads, or other means, which will allow
the board to lift them.
«
"
In place of the cumberboard lifting, an extra, and it may be smaller cumberboard,
higher up, may be employed to give the lifting motion to the particular portion of
the harness named, and in a like manner; or, by preference, where the harness is
fitted up in "necks" or bunches, the board or bar with holes or slots therein may be
fitted higher up still, and close underneath or forming part of the jacquard itself, and
may be provided with wire hooks or loops, the lower ends of which are attached to
the necks of harness, and the top portion to the hooks of both lifts of the jacquard
set apart for the purpose.
The form of tying up may be varied to any extent, and the supplementary lifting
hooks may be of any suitable form, and may be forked or not to the wires of the
double lift of the jacquard, or may be applied to single lift jacquards as a
modification.
Dated this 24th day of June 1887.
WILLIAM GADD, C.E.,
64, Barton Arcade, Manchester,
Agent.

page_text: Improvements in Leno Weaving.
1, WILLIAM JOHN RILEY, of Colne in the County of Lancaster, Manufacturer, do
hereby declare the nature of this my invention for "IMPROVEMENTS IN LENO
WEAVING," and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
The improvements relate to Leno weaving, and have for objects the reduction of
friction upon the yarn at the time of the "cross," and to enable double lift jacquards
to be employed with facility for this class of weaving.
To accomplish this and to effect my improvements, I provide a slack-taking-up or
tension motion, for the warp yarn, of a special character and a special or extra motion
for lifting that portion of the "healds" or "harness" carrying the ends over which
the dupe healds or harness cross, in such manner, that, at any or every pick, the warp
yarns are sufficiently lifted to attain a position at which the cross or leno may take
place with a small amount of friction.
But that the invention may be clearly understood, I will, by the aid of the accom-
panying drawings proceed to describe means employed by me. Fig. 1 is a sectional
view of portions of apparatus arranged in accordance with my invention, and
Fig. 2, a front view of some portions of the same, such as are requisite to explain
the nature thereof.
To form the slack-taking-up, or tension, motion, I use a set of harness and lingoes
at the back of the loom, as represented by a, a, through which that portion of the
warps b, b, is passed which is actuated by the dupe healds, and thus requires to be
let slack at the time of the "cross."
The yarn, after passing through this harness, is passed underneath a rod or roller c, c,
and thence to the actuating or ordinary harness f, f. The back healds or harness a, a,
are so set as to be in a lifted position, as shewn, during the operation of plain weaving,
and are held in this lifted position by being attached to the ends of the lever g, 9,
fixed or turned upon a fulcrum or fulcrums above, and counterbalanced by springs h, h,
or other elastic means, either at the end shewn, or it may be by springs or weighted
lever ends at the opposite end of such levers g, g. The ends g' of these levers are
attached by strings or wires, i, i, either to hooks in the jacquard set apart for the
purpose, or to the hooks actuating the leno harness, so that, when the same are lifted,
the ends of the levers carrying the tension harness are depressed, and the lingoes a',
allowed to pull down the yarn, and thus slack it out for the "
cross"
to take
place.
The special or extra lifting motion for the weaving harness or healds is applied
only to that portion carrying or actuating the yarn over which the dupe healds or
harness cross, and may be formed as a lifting cumberboard, or supplementary lifting
cumberboard, or a lifting bar, for carrying extra lifting wires, fitted underneath or
attached to the jacquard apparatus itself.
In ordinary the warps are lifted by means of the harness direct from the jacquard

page_text: ;
"
hooks only but the object of my special or additional lifting motion is to raise the
whole of the warps, passing through the plain healds or harness, a certain distance
for to enable the dupe healds or harness to make the " cross with the minimum of
friction on the yarn during the operation, and to enable the employment of double-lift
jacquards to be made with facility in this particular kind of weaving.
In case this is effected by giving motion to an ordinary cumberboard, as at k, k,
the same is detached from the cumberboard or boards carrying the remainder of the
healds or harness, and is mounted on levers, or in slides, or other mechanical means,
not shewn in the drawings, and caused to lift by cam or crank, or equivalent motion,
as will readily be understood, at any or every pick, such a distance as may be
necessary to enable the cross to take place with reduced strain. The heaids or harness
passing through the holes in the board are stopped by knots, beads, or other means,
as at 1, 1, which will allow the board to lift them.
"
In place of such ordinary cumberboard lifting, an extra, and it may be smaller
cumberboard, higher up, as suggested by the dotted lines at 'm, m, may be employed
to give the lifting motion to the particular portion of the harness named; and in like
manner, or, by preference, where the harness is fitted up in "necks or bunches, the
board, or a bar with holes or slots therein, may be fitted higher up still, as suggested
by the dotted lines at n, n, and close underneath or forming part of the jacquard itself,
and may be provided with wire hooks or loops, the lower end of which are attached
to the necks of harness, and the top portion to the hooks of both lifts of the jacquard
set apart for the purpose.
The form of tying up may be varied to any extent, and the supplementary lifting
hooks may be of any suitable form, and may be forked or not to the wires of
the double-lift of the jacquard, or may be applied to single lift jacquards as a
modification.
Neither the jacquard arrangements nor the working parts of the loom are shown,
as being unnecessary to the proper understanding of the invention, and variations in
form of the arrangement or means employed to actuate the same may be made without
departing from the peculiar character of the invention.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is;
1. The arrangement of a back-slack-tension motion in looms for leno weaving,
whereby the lift of the jacquard overcomes the tension of a spring or weighted
lever, and thus allows the lingo of the harness employed to lower or slacken the
thread passing therethrough, for the purpose and in manner substantially ss shewn
and described.
2. The communicating of a lifting motion to the plain healds or harness in looms
for leno-weaving, at the time of the cross," by means of a lifting cumberboard,
ordinary or supplemental, or of a lifting set of hooks or their equivalents, or a lifting
bar, forming part of or not part of the jacquard, or connected therewith for
actuation, or with any convenient portion of the loom, by means of cam, crank, or
equivalent motions, for the purpose and in manner substantially as shewn and
described.
Dated this ond day of March 1000
WILLIAM GADD, C.E.,
64, Barton Arcade, Manchester,.
Agent.