Improvements in Loom Shedding and Take-up Mechanism.
Year: 1894

page_text: Date of Application, 27th July, 1894
Complete Specification Left, 27th May, 1895-Accepted, 29th June, 1895
PROVISIONAL SPECIFICATION.
Improvements in Loom Shedding and Take-up Mechanism.
We, EPHRAIM BROWNLOW REDMAYNE, of the Alliance Works, Preston, in
the County of Lancaster, Cotton Manufacturer, and RICHARD PICKLES, of the
same place, Cotton Mill Manager, do hereby declare the nature of this invention
to be as follows:-
This invention has for its main object to simplify the method of operating the
healds in the weaving of headings in such cloths as dhooties our improvements
being also applicable to the weaving of cross borders and the like in scarves and
other like fabrics.
Heretofore it has been customary in the weaving or "putting-in" of such
headings or cross borders to employ dobby apparatus so arranged as to operate the
healds in the required order. According to our invention the use of the said
dobby apparatus is dispensed with and in lieu thereof the ordinary treadle
apparatus of a loom in conjunction with a novel arrangement of mechanism
hereinafter described is caused to operate the healde in the required manner.
Another feature of our invention relates to the take up mechanism of a loom
and consists in an improved arrangement of apparatus whereby an extra number
of picks in a given space may be put in during the weaving of a heading or cross
border.
For weaving a heading having for example four adjoining warp threads up and
the four adjoining warp threads down in forming the shed we employ-in carrying
out our said invention-four healds these being hung or suspended from a "heald
roller" constructed in a double form that is to say having one roller working
within another each of the rollers supporting alternate pairs of healds. Thus
one of the rollers carries the first heald-namely that nearest the reed-and also
the third heald whilst the other carries the second and fourth healds the latter
being that furthest from the reed. No. 2 heald is rigidly connected--by means of
a light metal rod-to the left hand treadle and No. 4 heald is similarly connected
to the right hand treadle whilst No. 1 heald is held or pulled downwardly by
helical springs. A third light metal rod occupying at its lower end a position
between the two treadles has formed upon its lower extremity a cross bar or
inverted T piece the two arms of the said cross bar being arranged to be moved
sidewise to the right or to the left underneath the right hand and left hand treadle
arms respectively which latter exert the required downward pull upon the rod
carrying the T piece the said rod being attached at its upper end to No. 3 heald.
The vertical shank of the T rod passes through an eyelet or slot in a horizontal
sliding bar which may be moved to and fro by means of a vertically arranged
lever or handle so as to cause the cross bar to be placed as required under one
or other of the treadle arms as before mentioned. The action of the apparatus is
as follows:-When weaving "plain" the right hand side arm of the cross bar is
under the right hand treadle which thus operates Nos. 3 and 4 healds and causes
Nos. 1 and 2 to be moved up as Nos. 3 and 4 are moved down the "drawing in'
of the warp being so arranged that in making the shed the adjoining warp threads
cross each other in the ordinary way. When weaving a heading the left arm of
the cross bar is moved under the left hand treadle thus causing Nos 2 and 3 to
move up together and Nos. 1 and 4 to move down together and so causing the
warp threads to cross each other in fours as hereinbefore mentioned.

page_text: For putting in an extra number of picks in a given space during the weaving of
a heading or cross border we employ a toothed pinion on the tappet shaft of the
loom which gears into a toothed wheel mounted on a fixed stud or axis the boss on
one side of the said toothed wheel constituting a jumping cam having preferably
a single step or diop. A pin-having a sloped off side-projecting from the
lower side of a pivoted arm or lever rests on the periphery of the cam and on the
upper side of the pivoted arm rests a finger at right angles thereto and also to a
second pivoted arm of which it forms the free end and whose other end is connected
to the ordinary holding back catch on the ratchet wheel. The outer edge of the
cam is sloped off as is also the underside of the upper cross finger the arrangement
of parts being such that the movement of the horizontal sliding bar and vertically
arranged handle herein before referred to causes the lever mechanism to be moved
sidewise over the sloped off edge of the cam into and out of action with the said
cam as required. When in action-assuming the pinion on the tappet shaft to
have 20 teeth and the wheel into which it gears 60 teeth--six-picks of weft will be
put in the cloth for one tooth taken up by the ratchet wheel.
COMPLETE SPECIFICATION.
Improvements in Loom Shedding and Take-up Mechanism.
We, EPHRAIM BROWNLOW REDMAYNE, of the Alliance Works, Preston, in
the County of Lancaster, Cotton Manufacturer, and RICHARD PICKLES, of the
same place, Cotton Mill Manager, 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 has for its main object to simplify the method of operating the
healds in the weaving of headings in such cloths as dhooties our improvements
being also applicable to the weaving of cross borders and the like in scarves and
other like fabrics.
Heretofore it has been customary in the weaving or "putting-in" of such headings
or cross borders to employ dobby apparatus so arranged as to operate the healds
in the required order. According to our invention the use of the said dobby
apparatus is dispensed with and in lieu thereof the ordinary treadle apparatus of
a loom in conjunction with a novel arrangement of mechanism hereinafter described
is caused to operate the healds in the required manner.
Another feature of our invention relates to the take up méchanism of a loom
and consists in an improved arrangement of apparatus whereby an extra number
of picks in a given space may be put in during the weaving of a heading or cross
border.
In order that our invention may be better understood we append a sheet of
drawings in which
Fig. 1 is a frent view,
Fig. 2 an end view and
Fig. 3 a plan view illustrating the nature of our improvements.
Fig. 4 is a detail view of the take up mechanism.
For weaving a heading having for example four adjoining warp threads up and
the four adjoining warp threads down in forming the shed we employ-in carrying
out our said invention-four bealds 1, 2, 3, and 4, these being hung or suspended
irom a "heald roller" constructed in a double form that is to say having one

page_text: roller 5 working within another roller 6 each of the rollers 5 and 6 supporting
alternate pairs of healds. Thus the outer roller 6 carries the first heald 1-
namely that nearest the reed-and also the third heald 3 whilst the other roller 5
carries the second and fourth bealds 2, 4, the latter being that furthest from the
reed. No. 2 heald is rigidly connected by means of a light metal rod 7 to the
left hand treadle 8 and No. 4 heald is connected by means of a similar rod 9 to
the right hand treadle 10 whilst No. 1 heald is held or pulled downwardly by
helical springs 11, 11. A third light metal rod 12 occupying at its lower end a
position between the two treadles 8 and 10 has formed upon its lower extremity a
cross bar or inverted T piece 13 the two horizoutal arms of the said cross bar
being arranged to be moved sidewise to the right or to the left underneath the
right hand and left hand treadle arms 8 and 10 respectively which latter exert the
required downward pull upon the rod carrying the T piece 13 the said rol being
attached at its upper end to No. 3 heald. The vertical shank 12 of the T rod
passes through an eyelet or slot-but preferably between projecting pins 14, 14,-
in a horizontally sliding bar 15 which may be moved to and fro by means of a
vertically arranged handle or lever 16 so as to cause the cross bar 13 to be placed
as required under one or other of the treadle arms 8, 10, as before mentioned.
The action of the apparatus is as follows:-When weaving "plain
the right
hand side arm of the cross bar 13 is under the right hand treadle 10 which thus
operates Nos. 3 and 4 healds and causes the said healds (3 and 4) to be moved
down as Nos. 1 and 2 are moved up the "drawing in" of the warp being so
arranged that in making the shed the adjoining warp threads cross each other in
the ordinary way common to plain cloth weaving. When weaving a heading the
left arm of the cross bar 13 is moved under the left hand treadle 8 (in the position
shewn at Fig. 1) thus causing Nos. 2 and 3 healds to move up together and
Nos. 1 and 4 healds to move down together and so causing the warp threads to
cross each other in the shed in fours as hereinbefore mentioned. 17, 17 are
depending arms or fingers for preventing one arm of the cross bar 13 from
accidentally moving over one treadle whilst the other arm is under the other
treadle.
"
For putting in an extra number of picks in a given space during the weaving of
a heading or cross border we employ a toothed pinion 18 on the tappet shaft 19 of
the loom which gears into a toothed wheel 20 mounted on a fixed stud or axis 24
the boss 21 on one side of the toothed wheel 20 constitutes a jumping cam having
a single step or drop 22 (shown in broken lines at Fig. 2). A pin or depending
finger 23-having a sloped off side-projecting from the lower side of a pivoted
arm or lever 25 rests on the periphery of the cam 21 and on the upper side of the
pivoted arm rests a finger 26 at right angles thereto and also to a second pivoted
arm 27 of which it forms the free end and whose other end is connected by means
of the rocking shaft 28 to the ordinary holding back catch 29 on the ratchet
wheel 30. The outer edge of the cam 21 is sloped off as is also the underside of
the cross finger 26 the movement of the horizontal sliding bar 15 and vertically
arranged handle 16 causing the lever 25 and finger 23 to be moved sidewise and-
when moved to the left-over the sloped or rounded off edge of the cam 21 and
therefore into action with the said cam. When the sliding bar 15 is moved to the
right the finger 23 and bar 25 will be moved from over the cam 21 and therefore
out of action therewith. The sliding bar 15 is connected with the boss 33 of the
lever 25 through the medium of a forked or slotted arm 31 enclosing the arm 32
depending from the boss 33 which is capable of sliding sidewise on its fixed stud
or axis 34. 35 represents the take up catch of an ordinary loom. When the
lever 25 and finger 23 are in action that is to say standing over the plain part of
the cam 21 (as shown at Fig. 1) the holding back catch 29 will be out of action
(as shewn in broken lines at Fig. 4) the cloth roller 36 thereby remaining
inoperative until the step 22 in the cam comes round opposite the finger 23 the
latter thereupon dropping into the step 22 and thereby allowing the catch 29 to
engage with and actuate the ratchet wheel 30 which is rotated to the extent of one

page_text: tooth when the catch 29 is again raised out of gear as the finger 23 rises out of
the step 22. Assuming the pinion 18 on the tappet shaft to have twenty teeth
and the wheel 20 into which it gears sixty teeth six picks of weft will be put in
the cloth for one tooth taken up by the ratchet wheel 30.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed we declare that
what we claim is :-
1. In a loom for weaving, the method of and apparatus for operating the healds
substantially as herein described and shewn in the drawings for the purpose set
forth.
2. In a loom for weaving, the combination of parts constituting the mechanism
for putting in an extra number of picks in a given space constructed arranged
and operating substantially as herein described and shewn in the drawings for the
n
Dated this 27th day of May 1895.
For the Applicants,
W. LLOYD WISE,
46 Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.