IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1882

page_text: LETTERS PATENT to George Herbert Hodgson of Bradford in the County of
York Machine Maker and James Broadley, of the said Bradford, and in the
employment of the said George Herbert Hodgson, for an invention of
"IMPROVEMENTS IN LOOMS FOR WEAVING."
PROVISIONAL SPECIFICATION left by the said George Herbert Hodgson
and James Broadley at the Office of the Commissioners of Patents on the
30th March 1882.
GEORGE HERBERT HODGSON of Bradford in the County of York, Machine
Maker, and JAMES BROADLEY of the said Bradford and in the employment of the
said George Herbert Hodgson. "IMPROVEMENTS IN LOOMS FOR WEAVING.”
In carrying our improvements into effect, the jacquard cylinder or pattern
surface, acts on the curved or bellied parts of weighted levers the weighted end of
each of which is capable when allowed to do so, of resting on and thereby bearing
down one end of a slide with knives or hooks (of which slides there is one to each
weighted lever). These slides are each formed to operate separately by a stud or
otherwise, one end of an inverted 1 lever whilst the two other ends of each 1 lever
by cords or other connections, operate the healds at one end thereof. The healds
are simultaneously operated at their opposite ends by L levers connected to
the levers by suitable connections.
The slides are each provided with knives or hooks, one towards each end of each
slide, and capable of being acted upon by moveable transverse bars operated by
connections from rocking arms so that the slides selected may operate the ends of
the levers as desired.
The ends of these slides are inclined so as in their movement to be held to either
selected position by rods.
By these means the slides are capable of being held in position after selection to
admit of change to the jacquard or pattern surface whilst the slides are thus held
at any time in the revolution, thereby to facilitate change of the shuttle boxes or

page_text: other motion connected to the same cylinder at times different from those for
change of healds.
We also by another arrangement of parts operate the healds by levers at the
inside or underside of the operating parts of the loom, which levers are connected
together in pairs, so that at one end a lever of each pair of them may be connected
to a heald towards one end thereof whilst the opposite end of the other lever of
that pair may be connected to the heald towards the opposite end of it. These
levers turn on centres of motion and their adjoining ends are connected together,
by one end of one rocking within the other or otherwise.
One of each pair of these connected levers is also provided with an arm
carrying a bowl operated by a tappet to give the required extent of motion to the
healds.
The improvements also relate to means for varying the selection of the order of
picking. The moveable noses of the picking tappets for operating the picking
bowls, are moved into, or out of position for action by forked arms from a sliding
bar which is operated by connecting rod from a rocking arm, and this rocking arm
is connected to, or forms part of a bevilled pinion the teeth of which are taken
into by the teeth of another bevilled pinion affixed to, or forming part of another
shaft on which is also applied arms, or a plate with a pin in each opposite side or
arm in position to be caught by one or other of a pair of lifting hooks to change
the position of the parts. This lifting hook is operated for lifting by a tappet and
it is moved for change of hook to operate by lever operated by jacquard.
The forked arms to the sliding bar are formed as levers and they are connected
to the sliding bar by pins or studs as fulcra on which they are capable of rocking
to a certain extent and the opposite end of these forks are connected together, or
operated by springs, by which means risk of breakage of the parts is avoided.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said George Herbert Hodgson & James Broadley in the Great Seal
Patent Office on the 28th September 1882.
GEORGE HERBERT HODGSON of Bradford in the County of York Machine
Maker and JAMES BROADLEY of the said Bradford and in the employment of the.
said George Herbert Hodgson. "IMPROVEMENTS IN LOOMS FOR WEAVING
33
In carrying the first part of our improvements into effect the Jacquard cylinder
or pattern surface acts on the curved or bellied parts of weighted levers the
weighted end of each of which is capable; when allowed to do so, of resting on and
thereby bearing down, one end of a slide with knives or hooks (of which slides
there is one to each weighted lever). These slides are each formed to operate
separately by a stud or otherwise one end of an inverted 1 lever whilst the two
other ends of each 1 lever, by cords or other connections operate the healds at one
end thereof The healds are simultaneously operated at their opposite ends by
Llever connected to the 1 levers by suitable connections.
The slides are each provided with knives or hooks one towards each end of each
slide, and capable of being acted upon by moveable transverse bars operated by
connections from rocking arms so that the slides selected may operate the ends of
the levers as desired.
The ends of the slides are inclined so as in their movement to be held to either
selected position by rods. By these means the slides are capable of being held in
position after selection to admit of change to the Jacquard or pattern surface whilst
the slides are thus held at any time in the revolution thereby to facilitate change
of the shuttle boxes or other motion connected to the same cylinder at times
different from those for change of healds.
We also by another a second arrangement of parts operate the healds by levers
at the inside or underside of the operating parts of the loom which levers are
connected together in pairs so that at one end a lever of each pair of them may be
connected to a heald towards one end thereof whilst the opposite end of the other
lever of that pair may be connected to the heald towards the opposite end of it.
These levers turn on centres of motion and their adjoining ends are connected
together by one end of one rocking within the other or otherwise.
One of such pair of these connected levers is also provided with an arm
carrying a bowl operated by a tappet to give the required extent of motion to the
healds.
The improvements thirdly relate to means for varying the selection of the order
of picking.
The moveable noses of the picking tappets for operating the picking bowls are
moved into or out of position for action by forked arms from a sliding bar which
is operated by connecting rod from a rocking arm, and this rocking arm is con-
nected to or forms part of a bevilled pinion the teeth of which are taken into by
the teeth of another bevilled pinion affixed to or forming part of another shaft on
which is also applied arms or a plate with a pin in each opposite side or arm in
position to be caught by one or other of a pair of lifting hooks to change the
position of the parts. This lifting hook is operated for lifting by a tappet and it is
moved for change of hook to operate by lever operated by Jacquard.
But that the invention may be the better understood we will by the aid of the
accompanying drawings proceed to describe means pursued by us in carrying the
same into effect.

page_text: +
DESCRIPTION OF THE DRAWINGS
Figure 1 represents a front view of parts of a, loom with our improvements
applied thereto. Figure 2 shews a sectional front view and Figure 3 is a plan
view of parts constituting the improvements. Figures 4 and 5 shew separate side
and edge views of two of the instruments separately. In each of the views the
same letters indicate corresponding parts.
a. a, indicate parts of the main framing bare weighted levers which are
supported to turn at one end on a bar b¹, carried by parts of the frame a' whilst
the opposite end 62, of each lever b is capable of resting, on a lever c and each
lever b, by its weight when allowed so to do tends to tilt the slide lever c acted
'upon.
Each lever is formed with a curve or belly 63 which is formed to be operated
upon by the jacquard or pattern surface or by pins or studs thereto for the raising
of the levers when required Figure 4 shews one of the levers b by side and
edge views thereof separately. Each of the slide levers c, is formed as represented
by the side and edge views of one of them Figure, 5, with a notch c¹ by which it is
capable of rocking on a pin d', from an inverted lever d and each lever c is also
formed with a pair of knives or hooks c³ ³.
The knives or hooks c. c. are capable of being caught by one or other of the
sliding bars e, c, so as to draw the upper end of the inverted 1 lever in the
direction desired according to the selection by the Jacquard of the levers b.
The sliding bars e. e, are controlled to move in parallel lines one to the other but in
alternate opposite directions by channels formed for them in the frame a¹ and the
to and fro motion is given to them by means of rocking arms e¹, e¹. carrying adjust-
able pins e². e, for operating the rods e³, e³, which are connected by pin joints et, et,
to arms from the sliding bars e, e, The arms e', e', are applied to a shaft e on
which is also applied the arm e which by a connecting rod e' is connected to and
operated by an eccentric or otherwise for the desired alternate motions in opposite
directions to the sliding bars e, e.
The ends d² ², of the levers d, are connected as may be desired by suitable
cords to one end of the heald frames whilst the upper end d³, of each lever dis
connected by a rod f. to other levers g also connected to the other ends of the heald
frames.
We will now describe the second part of our improvements which is represented
by a skeleton front view of a loom at Figure 6, h. in this case represent the, heald
frames for operating the warp to open sheds in the order desired. These heald
frames are on their underside each connected to the outer ends of a pair of levers i, i,
one of each of which is formed at its inner end with a stud . whilst the corre-
sponding inner end of the other lever i is formed with a fork or slotted opening 22,
to receive that stud . The two sets of levers are supported to rock on the
axes and one of each pair of them is provided with an arm i. provided with a
truck or bowl to be operated each by one of a series of cams or tappets ³ applied to
a shaft i, on which is also affixed a bevilled pinion 7 the teeth of which are taken
into by the teeth of another bevilled pinion 28. affixed to and moved by the shaft
or axis in any suitable manner.
The upper parts of the heald frames are connected to the rocking levers j
and the axes of these rocking levers j are supported in adjustable bearings as
shown.
We will now describe the third part of our Improvements. Figure 7 shows an
outline of parts of the end framing of a loom and Figure 8 part of the plan of such
frame In this case also a represents the framing the main or crank shaft and 1,
the tappet shaft which is driven from the main shaft or axis k by means of the
intermediate toothed wheel m acting upon the respective tooth wheels and
m, n, are the moveable plates having formed on them the noses for operating_bowls
from the axes of the respective picking shafts for the changes in the order of

page_text: picking desired. These moveable plates n are capable of sliding on the fixed
portions of the tappets o, o, and are thereby controlled as is well understood by
persons acquainted with this class of machinery to revolve with the tappet shaft 7,
although they are also capable of sliding endwise on that shaft. This end way
motion of these plates n, n. is obtained by the forked arms p. p. which by pins p',
embrace the necks of the bosses of the plates n and are connected to the sliding
rod q which is supported to slide end wise in bearings a³ carried by the main
framing a and this bar q is capable of being moved so as to change the relative
positions of the plates n. m, by being connected at q', to one end of the rod q, the
other end of which is connected by pin joint to the rocking arm q³ and this arm q³
is connected to or forms part of a bevilled pinion r, the teeth of which are taken
into by the teeth of the bevilled tooth wheel & affixed to or forming part of another
short shaft on which is applied the plate t, with projecting pins or studs t¹. t¹, and
these pins t¹. t'. are placed in the plate t in position to be caught, one or the other
of them by one of the hooked ends u', of the rod u which is suspended from the
lever operated by tappet u³.
The rod is embraced by studs v₁, v³, carried by the lever arm which is
supported to move on the fixed stud v², and at its other end ³ is operated by
jacquard w.
By these means facility is obtained for changes in the order of picking the
shuttle.
The forked arms p of the sliding bar q are formed as levers and they are
connected to the sliding bar by pins or studs p² as fulcra on which they are capable
of rocking to a certain extent and the opposite ends of these forked levers are
connected together or operated by spring p3 by which means risk of breakage of.
the parts is avoided.-Figure 9 shows parts separately.
Having thus described our invention and means which we adopt in carrying the
same into effect we would have it understood that what we claim is :-
First. The arranging or combining parts whereby the selection for the movement
of the healds for changes of sheds is effected as described under this first head of
invention.
Secondly. We claim the arranging or combining parts for effecting changes in
the order of moving the healds for changes of shed as described under this head of
the invention and
Thirdly. We claim the arranging or combining parts for effecting variations in
the order of picking as described under this head of the invention.
In witness whereof I the said George Herbert Hodgson have hereunto set
my hand and seal this twenty-fifth day of September One thousand eight
hundred and eighty-two.
GEORGE HERBERT HODGSON. (L.S.)