Improvements in Shedding Motions and Shuttles of Looms for Weaving.
Year: 1896

page_text: Date of Application, 21st Sept., 1896
PROVISIONAL SPECIFICATION.
Improvements in Shedding Motions and Shuttles of Looms for
Weaving.
I, JOHN WARD, of Ingham Street Iron Works, Blackburn, in the County of
Lancaster, Machine Maker. do hereby declare the nature of this invention to be
as follows:-
This invention relates firstly to improvements in the shedding mechanism of
leoms for weaving, and secondly to improvements in shuttles employed in looms
for weaving.
The
According to this invention, and referring first to the shedding mechanism.
The jacks are made without the usual teeth, and instead are cast with cranked
ends terminating in bosses and recesses which are connected by means of S or
straight links, which at their ends have corresponding bosses or recesses.
bosses or recesses have tonges or grooves formed in them, so that lateral motion
is prevented, and also chambers for oil or lubricant are formed. Cored out flanges
or lugs are provided on the cranked portions of the jacks, and in such cored out
flanges the connecting links are received. Projections or stop pieces are cast on
the connecting links, so that when one jack is operated in the usual manner, its
motion is communicated to the other jack.
The jack lever has an additional arm cast to it, and this arm is by link connected
with the outer jack, by which means an increased lift is given to the jack, so
that "centre" shed is formed every pick of the loom, and the draw hooks need
only travel about half the usual distance. The connecting link may be dispensed
with and the jack have another arm cast to it, which by link is connected to the
jack lever. The extra arm has two joints, and the link connecting the lever to
the jack lever is attached to one or other of the joints for "centre" or open
shed"
"
The pattern barrel is made of a series of circular discs in the edges of which
are inclined recesses, and in these recesses are placed metal pegs on which are
pins fitting in holes in the recesses. Each peg is interchangeable, and when
placed in the required position the discs are bolted together on a shaft and the
pattern barrel is set according to the pattern required. The pins prevent the
pegs falling out of place when the discs are not screwed up tightly.
Below the barrel is placed a semi-circular dish containing oil, into which the
pegs dip at every revolution of the barrel.
In broad looms the jacks are connected by links, and to increase the bearing
surface of such links the ends are cranked, and the cranked portions fit on opposite
sides of two lugs or guide pieces cast on each edge of the jacks, and the bearing
ends of the links are made double the thickness without increasing the space
Occupied by each jack.
To increase the number of shafts without increasing the width of the dobby,
I mount the jack levers in line and end to end. The draw hooks pass either
through core holes in the levers, or the latter are cranked to allow of their passage,

page_text: and such hooks are connected to buttons or pins on the levers, and the hooks are
eperated by draw bars in the usual manner. The first or prime rocking lever has
an extra arm cast to it, and this arm is by link connected to a like arm on a second
rocking lever which imparts motion to the second or duplicate part of the dobby.
In order that straight needles may be employed and at the same time prevent the
necessity of cranking the jack levers, each of the latter is set opposite to the space
between two jack levers on the opposite shaft.
In order to reduce the size of the undermotion and to obviate the use of long
springs under the loom and to prevent lagging at the end of each stroke, I employ
one set, or in wide looms two sets, of cranked levers mounted on a cross shaft.
One end of each alternate lever is by spring connected to a fixed point on a bracket.
The other levers are by like springs attached to fixed points, these springs operating
in a reverse direction. Each alternate lever is cut away on a portion of its length
to make room for the spring of the next lever. The motion eases as the healds
rise, by reason of the change of centre of the levers and springs, and each lever
and undermotion is independent of the adjoining ones. The springs are almost
vertical and consequently occupy little space.
The improved shuttle has an ordinary tonge hinged at each end, and has two
eye-holes about the centre through which the two wefts are brought, and in
operation two wefts are laid at each pick, and the loom is adjusted to take up'
two picks for each throw of the shuttle, by which means a greater output from
each loom is secured. The shuttle is made of the usual depth, and the tonges
are kept in position by a spring placed edgewise to one edge of each foot of each
tonge, so that less space is occupied thereby than heretofore.
Dated this 10th day of Contem
1900
BRIERLEY & HOWARD,
Penny Bank Chambers, Halifax, Agents for the Applicant.
Improvements in Shedding Motions and Shuttles of Looms for
Weaving.
I, JOHN WARD, of Ingham Street Ironworks, Blackburn, in the County of
Lancaster, Machine Maker, 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 relates firstly-To improvements in the shedding mechanism of
Looms for Weaving and consists of an improved method of and means employed
for connecting or jointing the various levers and links so as to ensure true and easy
working of the parts and lubrication of the joints or elbows. Secondly. To
improvements in the manufacture and construction of pattern barrels so arranged
that the position of the pegs or pins can readily be changed and consequently
the pattern arranged as desired, also that the tips of the pegs or pins are lubri
cated at each revolution of the barrel. Thirdly. To improvement in the links
for connecting jacks in broad looms whereby a greater bearing surface is obtained
without increasing the space occupied by each jack. Fourthly. To improve-
ments in the undermotions of looms for weaving whereby the use of long springs
is obviated as also is the "lagging" at the end of each stroke.
Fifthly. To
improvements in the Shuttles of looms for weaving whereby a greater output of
cloth is obtained from each Loom.
Such being the nature and object of my said invention, the following is a

page_text: complete description of same, reference being had to the accompanying drawings,
in which:-
Fig. 1 is a side elevation of jack levers and links jointed and constructed
according to this invention.
Fig. 2 is an end sectional veiw of one of the improved joints.
Fig. 3 is a side elevation of a modification of Fig. 1.
Fig. 4 is a sectional end view of the improved pattern barrel shewing the method
employed for lubricating the pegs or pins.
Fig. 5 is a front elevation of the improved pattern barrel.
Fig. 6 is a side elevation of the improved link for connecting the jacks on broad
looms.
Fig. 7 is a plan view of part of Fig. 6.
Fig. 8 is an end elevation of the improved under motion made double for narrow
looms.
Fig. 9 is an end elevation of a single undermotion used in duplicate for broad
looms.
Fig. 10 is a plan view of the improved shuttle.
Fig. 11 is a sectional side elevation of Fig. 10.
According to this invention and referring first to the shedding mechanism and
to Figs. 1, 2, and 3 of the drawings. The jacks 1 are made without the usual
teeth, and instead are cast with cranked ends 2 terminating in bosses 3 (see Fig. 3)
or recesses 4 (see Fig. 1) which are connected by means of S or straight links 5
which at their ends have corresponding bosses 7 (see Fig. 1) or recesses 6 (see
Figs. 1 and 3). The bosses 7 have tongues 9 (see Fig. 1) and grooves or recesses 10
(see Fig. 1) are formed in the jacks or joints so that lateral motion is prevented
and also chambers for oil or lubricant are formed by the recesses 10. In Fig. 3
the pins 3 of the jacks are solid and the hooks of the links 5 are also solid so as to
get a broad bearing surface, but lubrication is not provided for in this case. Cored
cut flanges or lugs 11 are provided on the cranked portions 2 of the jacks 1 and
in such cored out flanges 11 the connecting links 5 are received. Projections or
stop pieces 12 are cast on the connecting links 5, and (see Fig. 3) a curved finger (^
on the jack 1 overlaps the top of the link 5 so that when one jack 1 is operated
in the usual manner its motion is communicated to the other jack.
or "
open
The jack lever 1 may have an additional arm 13 cast to it (see Fig. 1) and this
aim 13 is by link 14 connected with the outer baulk lever 15 by which means an
increased lift is given to the jack, so that "centre" shed is formed every pick of
the loom, and the draw hooks need only travel about half the usual distance.
The extra arm 13 has two joints 16, 16 and the link 14 connecting the lever 15
to the jack lever 1 is attached to one or other of the joints for "centre
shed."
The pattern barrel 1 (see Figs. 4 and 5) is made of a series of circular discs 2 in
the edges of which are inclined recesses 3 and in these recesses 3 are placed metal
pegs 4 on which are pins or projections 5 fitting in holes 6 in the recesses 3. Each
peg 4 is interchangeable and when placed in the required position the discs 2 are
belted together on a shaft 7 and the pattern barrel 1 is set according to the pattern
required. The pins 5 prevent the pegs 4 falling out of place when the discs 2
are not screwed up tightly. Instead of the pegs, pins 8 may be employed, each
pin 8 being narrow at its centre 9, such narrow part being received in a groove or
recess 10 in the disc 2.
Below the barrel 1 is placed a semi-circular dish 11 bolted to the frame and
containing oil into which the pegs 4 or pins 8 dip at every revolution of the
barrel 1.
In broad looms (see Figs. 6 and 7) the jacks 1, 1 are connected by links 2, and
to increase the bearing surface of such links 2 the ends 6 are cranked (see Fig. 7)
and the cranked portions fit between or on opposite sides of two lugs or guide
pieces 3, 3 cast on each edge of the jacks 1 and the bearing ends of the links 2
are made double the thickness without increasing the space occupied by each jack.

page_text: The broad end may be cast separately and bolted to the link if desired. The
cranked end 5 of the link 2 is received in a recess 6 of the jack lever 1 (Figs. 6
and 7). The cranked end 5 may be on the jack 1 and the recess 6 in the link 2.
In order to reduce the size and cost of the under motion (see Figs. 8 and 9) and
to simplify its construction, also to obviate the use of long springs under the loom
and to prevent lagging at the end of each stroke I employ one set in duplicate (see
Fig. 9) or in narrow looms two sets (see Fig. 8) of cranked levers 1, 1 and 2, 2,
mounted on cross shafts 3, 3. One end of each alternate lever 1 is by spring 4
connected to a fixed point 5 on a bracket 6. The other levers 2 are by like springs 7
attached to fixed points 8. The levers 1, 1 and 2, 2 engage with one another by
means of the teeth 9 (see Fig. 8).
In broad looms one set of levers only are employed, but in duplicate, one set at
each end of the loom (see Fig. 9) and one end of each alternate lever 1 is by
spring 4 connected to a fixed point 5 on a bracket 6. The other levers 2 are by
springs 7 attached to fixed points 8 the springs operating in a reverse direction and
euch alternate lever is cut away on a portion of its length to make room for the
spring of the next lever. The motion eases as the healds rise by reason of the
change of centre of the levers 1, 1 and 2, 2 and springs 4, 7, and each lever and
undermotion in independent of the adjoining ones. The springs 4, 7 are almost
vertical and consequently occupy little space. At 10 are brackets bolted to the
frame 11 to prevent lateral movement of the levers 1, 1 and 2, 2, and at 11 are
cross bars which prevent overdrawing by limiting the upward movements of the
levers 1, 1, and 2, 2.
"
The improved shuttle (see Figs. 10 and 11) has an ordinary tonge 1 hinged at
each end and has two eye holes 2, 2 about the centre through which the two wefts
are brought from the tonge 1 and in operation two wefts are laid at each pick and
the loom is adjusted to
take up
two picks for each throw of the shuttle, by
which means a greater output from each loom is secured. The shuttle is made of
the usual depth and the tonges 1, 1 are kept in position by springs 3 placed edge-
wise to one edge of each foot 4 of each tonge 1 so that less space is occupied
thereby than heretofore.
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 improvements in the shedding apparatus of looms for weaving as
herein described and substantially as illustrated by Figs. 1 and 2 of the annexed
drawings.
(2) The improvements in the shedding apparatus of looms for weaving us
herein described and substantially as illustrated by Fig. 3 of the accompanying
drawings.
(3) The improved joint or means of connecting the jack levers and links as and
for the purpose herein described and substantially as illustrated by Figs. 1, 2,
and 3 of the annexed drawings.
(4) The general construction, arrangement and combination of parts consti-
tuting the improved pattern barrel and pegs together with the means for
lubricating said pegs or pins as and for the purpose herein described and
substantially as illustrated by Figs. 4 and 5 of the drawings annexed hereto.
(5) The general construction, arrangement, and combination of parts
constituting the improved pattern barrel as and for the purpose herein described
and substantially as illustrated by Figs. 4 and 5 of the accompanying drawings.
(6) The improved link having a broad end, and cranked so that it passes on
each side of alternate lugs on the jack levers as and for the purpose herein
described and substantially as illustrated by Figs. 6 and 7 of the annexed
drawings.
(7) The
general construction. arrangement. and combination
of parts

page_text: constituting the improved undermotion as herein described and substantially as
illustrated by Fig. 9 of the annexed drawings.
of parts
(8) The general construction, arrangement, and combination
constituting the improved undermotion as herein described and substantially as
illustrated by Fig. 8 of the drawings annexed.
(9) The improved shuttle having two tonges and two eyelets about the
centre of such shuttle as and for the purpose herein described and substantially
as illustrated by Figs. 10 and 11 of the accompanying drawings.
(10) The general construction, arrangement, and combination of parts
constituting the improved shuttle as and for the purpose herein described and
substantially as illustrated by Figs. 10 and 11 of the annexed drawings.
1002
CALAD
JOHN WARD,
By his Agents Brierley & Howard,
Penny Bank Chambers, Halifax.
JOHN WARD,
By his Agents Brierley & Howard,
Penny Bank Chambers, Halifax.