Improvements in Heald Operating Mechanism, Applicable for Use in connection with Looms for Weaving.
Year: 1889

page_text: Date of Application, 1st Nov., 1889
Complete Specification Left, 31st July, 1890-Accepted, 6th Sept., 1890
PROYISIUNAL SPECIFICATION.
Improvements in Heald Operating Mechanism, Applicable for Use in
connection with Looms for Weaving.
We RICHARD LONGDEN HATTERSLEY of Keighley, in the County of York, Machine
Maker, and JAMES HILL of the same place, Manager, do hereby declare the nature of
this invention to be as follows:-
That is to say it consists of improvements in heald operating mechanisms applicable
for use in connection with looms for weaving, whereby the operations of said
mechanisms are rendered more effective for certain purposes than they have been
heretofore.
Our said invention relates firstly to the arrangement of means whereby variable
motion is imparted to the shedding mechanism well known as Hattersleys positive or
non-positive dobby or in other words said shedding mechanism is made to raise or
depress the healds or heddles at an increased rate of speed and to utilize the time
thus gained in retaining the said healsattheir raised or depressed positions by which
means more time is allowed for the passage of the shuttle through the shed or open-
ing in the warp made by the said heddles being thus operated, as also a cleaner or
more open shed is produced by reason of the division or separation of the threads of
warp being effected more quickly.
This we attain by mounting. a wheel of somewhat elliptical form, upon the low or
slow motion shaft of the loom, this wheel being made to gear with another wheel of
exactly like form, mounted upon a stationary shaft or stud carried by the framework
of the loom. On or in connection with this latter wheel is mounted a crank pin to
which the shedding mechanism's connecting rod is coupled. Now as the low or
slow-motion shaft of the loom rotates the crank pin is moved through two distinct
or seperate portions of its path of motion at a quickeras also through two other distinct
portions at a slower rate of speed in each revolution that it makes, with the desired
result.
Again should it be found desirable to employ the crank or quick motion shaft of
the loom for imparting motion to or for operating the shedding mechanism, the
elliptical wheel that is mounted thereon is only required to be half the size of the one
it has to operate, and in order to make it gear properly with the said one which it has
to operate, it (said smaller wheel) is mounted excentrically upon its driving shaft.
In order that the crank pin may be adjusted so that its circular path of motion may
be of greater or less diameter to suit the varied requirements for which a greater or
less opening in the warp is required, said crank pin is fixed to or mounted upon
an adjustable plate which is formed so as to be attached to the face of its elliptical
driving wheel.
To impart fast or quick and slow movements to the shedding mechanism as above
described, without the employment of elliptical wheels, the crank for imparting said
movements may be mounted upon the loom's shaft in the usual way, however instead
of the shedding-mechanism's ordinary connecting rod being directly coupled thereto
it is joined to a suitably formed lever, the centre of its jointing being relatively with
the centre of the lever in such a position that although said lever is made to oscillate
or partly rotate about its said centre, it only imparts motion in an upward or down-
ward direction to said connecting rod during one portion of its journey the other
portion merely moving same in a lateral direction and so only causing it to oscillate
about its upper jointing and not in any way moving the shedding mechanism during
this lateral movement.
The arrangement above described produces a slow movement during one portion
of the rotation of the crank only, however the leyer above described is coupled to the

page_text: driving crank by means of a short connecting rod which is arranged in such a manner
that during one portion of the rotation of said crank no upward or downward move-
ment shall be imparted thereto, the time thus lost being absorbed by a lateral
movement being imparted somewhat as hereinbefore described, in this manner the
necessary double dwell or slow movement is attained.
Our invention relates secondly to improvements in the arrangement and construction
of parts for imparting motion to the pattern surfaces of the shedding mechanisms
herein before described, part of which improvements are also applicable to other
shedding mechanisms, and consists of the application of means whereby fewer pattern
cards or lattices are required for producing certain patterns or designs in the material
being woven, than it has been necessary heretofore to employ.
The object of this invention is attained by making use of supplementary pattern
mechanism in addition to the usual and well known primary pattern mechanism and
these said supplementary and primary pattern mechanisms are so coupled or joined
together that the actions of the former are grooved or controlled by the pattern surface
of the latter.
In accordance with this invention, instead of the primary pattern cylinder being
moved or intermittently rotated so as to bring each of its pattern lags or lattices into
effective operation in succession, as it does in an ordinary way, means are employed,
such as ratchet and wheel or any of the well known methods, for causing it to move
two lags at each movement in this manner only bringing every alternate lag into
effective operation successively, so that the indicating pegs in one of these series of
alternate lags may be arranged to produce a design of a totally different nature or
description to the design produced by the indicating pegs in the other series
of lags.
By the employment of a kind of duplex catch wheel mechanism in connection
with the supplementary pattern cylinder, the operating catch, which is mounted in
any suitable manner upon its motor lever. is made to impart motion, to said supple-
mentary cylinder, only at predetermined times of its movement, that is to say,
although the operating catch is continuously imparting intermittent motion to one
portion of the duplex catch wheel the pattern cylinder is not moved until a pre-
determined position of the said catch wheel has been arrived, and said predetermined
position may be arranged to be at every third or fourth, etc. movement of the
catch.
Again, the pattern surface of the supplementary cylinder is so arranged as to
control and determine the movements of the primary cylinder in such a manner that
at predetermined times of its movements, it changes, by means of rendering one
portion inoperative and the other operative, the actions of said primary cylinder so
that the one series of its alternately operating lags which were in effective operation
are rendered ineffective while the other series are placed into effective operation, in
this manner attaining the object desired, in as much as these pattern surfaces may be
so arranged that the design on one of the series of alternately effective lags may be
repeated as often as desired such as for producing or making the border of a handker-
chief, and then thrown out of operation while the other series is used to produce
the body portion of the design in said handkerchief in contradistinction to the
employment of a long continuously operating chain of lags for producing the whole
design.
Although this invention is herein before described as having especial reference to
one particular type of shedding mechanism, yet it will be readily understood that a
portion of it may be employed for any of such shedding mechanisms as permit the
use of lattices having two rows of indicating pegs in each lattice or lag for indicating
or effecting two separate changes of the heddles at different times.
Dated this 1st day of October 1889.
RICH. L. HATTERSLEY.
JAMES HILL.

page_text: DI MUITIVATION.
Improvements in Heald Operating Mechanism, Applicable for Use in
connection with Looms for Weaving.
We RICHARD LONGDEN HATTERSLEY of Keighley, in the County of York, Machine
Make and JAMES HILL of the same place. 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:-—
That is to say it consists of improvements in heald operating mechanisms applicable
for use in connection with looms for weaving whereby the operations of said
mechanisms are rendered more effective for certain purposes than they have beca
heretofore.
Our said invention relates firstly to the arrangement of means whereby variable
motion is imparted to the shedding mechanism well known as Hattersley's positive or
non-positive dobby or in other words said shedding mechanism is made to raise or
depress the healds or heddles at an increased rate of speed relatively with that of the
loom to which it is applied, and to utilize the time thus gained, in retaining the said
healds at their raised or depressed positions by which means more time is allowed for
the passage of the shuttle through the shed or opening in the warp made by the said
helles being thus operated, as also a cleaner or more open shed is produced by
reason of the division or separation of the threads of warp being effected more
quickly.
The second part of our invention relates improvements in the arrangement and
construction of parts for imparting motion to the pattern surfaces of the shedding
mechanisms herein before described, part of which improvements are also applicable
to other shedding mechanisms and consists of the application of means whereby
fewer pattern cards or lattices are required for producing certain patterns or designs in
the material being woven than it has been necessary heretofore to employ.
The accompanying drawings are illustrative of this invention and form part of this
specification reference being made to same by figures and letters in the following
description.
Fig. 1 and are end and side elevations of a sufficient portion of a loom and its
shedding mechanism to shew the application thereto of our invention.
Figs. 3 and 4 are similar views to Figs. 1 and 2 respectively and shew a modification
thereof or an alternative way of effecting the same object.
Figs. 5. and Gare also similar views to Figs. 1 and 2 and shew yet another method
of attaining the same results.
Figs. 7, 8 and 9 are side, top and end views of shedding mechanism shewing the
application thereto of the second part of this invention.
Fig. 10 is a drawing in detail, of parts hereinafter described.
In all the drawings only such portions of a loom or its shedding. mechanism, are
shewn as are necessary to illustrate the application of our invention.
A indicates the end frame of the loom.
The object of the first part of our invention is attained by mounting a wheel a
which is of the shape (somewhat elliptical) shewn upon the loom's low or slow motion
shaft, the said wheel a being made to gear with another wheel e (which is of like
form) mounted upon the stationary shaft carried by the end frame A and bracket A'.
On the wheel is mounted the pine by which the part f is fixed to said wheel 6, and
on this part f is fixed or formed the crank piny (or this crank pin g might be attached
directly to the wheel e in the well known manner) to which is coupled the shedding
mechanism's connecting rod h.
Now as the shaft rotates the ping is moved through two distinct or separate
portions of its path of motion at a quicker or increased rate of speed as also through
two other distinct portions at a slower or decreased rate of speed in each revolution
that it makes, and by these wheels and being arranged to rotate in concert with
the other parts of the loom the shedding mechanism is operated as desired and as
herein before described.

page_text: Again should it be found desirable to employ the loom's crank or quick motion
shaft k for imparting motion to or for operating the shedding mechanism, the wheel/
(which in this case is more circular than elliptical in forn) that is mounted thereon
is only required to be half the size of the wheel e which it operates and in order to
make it gear with this said wheel c it (said wheel 7) is mounted eccentrically upon said
shaft as shewn by Fig. 3.
The said Fig. 3 also shews this gearing wheel arrangement as being used with a
common crank instead of the plate † (hereinafter described) or the common
pin y.
In order that the crank ping shewn by Figs. 1 and 2 may be adjusteil so that its
circular path of motion may be of greater or less diameter to suit the varied require-
ments for which a greater or less opening in the warp is required said crank pin g
attached to the plate ƒ above referred to, this plate f having suitable slotted openings
for allowing its adjustment and attachment upon and to the face of the wheel < as
shewn by Fig. 1.
P
To impart fast or quick and slow movements to the shedding mechanism as above
described, without the employment of elliptical or eccentric wheels, the crank m
(Figs. 5 and 6) is mounted upon the loom's shaft in the ordinary
way,
however
instead of its pin g' being coupled directly to the shedding mechanism's ordinary
connecting rod it is joined to the rod which is coupled at o to the lever said
lever
7 being joined at y to said rod h and having its fulcrum at pl.
By the jointing at being relatively in position with the centre as shewn,
although the lever may be or is moved or made to oscillate about its centre pl
motion is only imparted in an upward and downward direction to the rod / during
ene portion of the movement of said lever p the other portion of movement of this
lever merely moving said rod in a lateral direction (its path of motion being shewn
by broken lines) and so only causing it to oscillate about its upper jointing hi and
not so moving it as to cause any perceptible movement in the shedding mechanism.
This arrangement produces a slow movement during one portion of the rotation
of the crank m, only however by the coupling of the rod to the lever at the part
oy in the position o, said position being relatively with the centre of the crank mas
shewn, during one portion of the rotation of said crank m no upward or downward
movement is imparted to the rod by reason of the path of motion of its outer end
(which is represented by the pin g when said rod is merely oscillated about the
centre o) lying, or nearly so, for a space in the path of motion of said pin gas and
when carried by its said crank m about or around the shaft bas shown in broken
lines, in this manner the necessary double dwell or slow movement is effected.
U
SO
The object of the second part of our invention is attained by making use of
supplementary pattern mechanism as at B3 in addition to the usual and well known
primary pattern mechanism as at C these said pattern mechanisms B and C being
coupled or joined together that the actions of the mechanism C are governed or
controlled by the pattern surface of the mechanism B.
In accordance with this invention instead of the pattern cylinders being moved or
intermittently rotated so as to bring each of its pattern lags or lattices into effective
operation in succession as it does in an ordinary way, means are employed, such as
the two ratchet wheels and with their respective operating ratchets and a these
latter being mounted in the usual manner upon the shedding mechanism's operating
lever, for causing it (said cylinder s) to move the space of two lags s' at each move-
ment in this manner only bringing every alternate lag into effective operation,
successively, so that the indicating pegs in one of these series of alternate lags may be
arranged to produce a design of a totally different nature or description to the design
produced by the indicating pegs in the other series of lags.
By the employment of a kind of duplex catch-wheel mechanism, that is to say,
two catch wheels ac and ', both of which are mounted upon the shaft of the
cylinder (the wheel being rigidly and the wheel loosely so mounted) and
operated by one catch or ratchet y mounted upon the operating lever, the
cylinder a is only rotated or moved by its said motor ratchet y, at predetermined

page_text: times of the movements of this said ratchet y, or in other words although the ratchet,
is continuously imparting intermittent motion to the wheel to the pattern cylinder
is not moved until a predetermined position of the said catch wheel has been
arrived, this being the moving into position of a deeper tooth formed on said
wheel which allows the ratchet y when it is reached, to descend low enough to
come into contact with the teeth of, so as to operate the wheel which is of smaller
diameter than the wheel e as shewn. As will be seen the number of ordinary or of
deep teeth in the wheel we may be varied so that the predetermined time of movement
of the cylinder may be arranged to be effected at every third fourth fifth or other
movement of the ratchet y.
Again by the pattern surface B being made to operate and controll as by raising
or depressing the lever. which through the rod and the double acting cam 2
places one or the other of the ratchets or into or out of operating contact with
their respective wheels and (somewhat as is described in the specification of our
patent No. 3909 of 1889), the movements of the cylinders so as to place one or other
of its alternating series of lags into or out of effective position, it will be seen that
the object desired is attained inasmuch as the pattern surfaces on these separate series
of lags may be so arranged that the design on one of the series may be repeated as
ofien as desired, such as for producing or making the border of a handkerchief, and
then thrown out of operation while the other series is used to produce the body
portion of the design in said handkerchief. in contradistinction to the employment
of one long continuously operating chain of lags for producing the whole design.
Although this invention is herein before described as having especial reference to
one particular type or class of shedding mechanism yet it will readily be seen that a
portion of it may be employed in connection with any of such shedding mechanisms
as permit the use of lattices having two rows of indicating pegs in each lattice or
lag for indicating or effecting two separate changes of the heddles at different
times.
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
1. Means for imparting variable motion to the class of shedding mechanism herein
described substantially as and for the purposes specified.
2. The wheels a and c of the form or shape described, the plate /, the rod / and
shedding mechanism of the class specified in combination, each and all of these several
parts being arranged to operate substantially as set forth.
3. The wheels and c of the respective forms or shapes as shewn, the rod hand
shedding mechanism of the class specified in combination the same being arranged to
operate substantially as herein set forth.
1
4. The crank m, the rod #, the lever of the form illustrated by Fig. 5, the rod
and shedding mechanism of the class specified in combination the same beingarranged
to operate substantially as set forth.
5. The employment of mechanism whereby the number of the pattern lags or
lattices, used in connection with the shedding mechanism of looms for weaving, is
greatly diminished when producing certain designs in the fabric being woven
substantially as herein specified.
6. The pattern cylinder the wheels wand, the ratchet y the lever the pattern
cylinders and means for operating this cylinders, in combination, each and all of
said parts being respectively formed and arranged to operate substantially as herein
set forth and described.
Dated this 30th day of July 1890.