Year: 1899

page_text: Date of Application, 4th Feb., 1899
Complete Specification Left, 4th Nov., 1899-Accepted, 9th Dec., 1899
We, JAMES WARD and Jous WARD, both of Ingham Street Iron Works, Black-
burn, in the County of Lancaster, Machine Makers, do hereby declare the nature
of this invention to be as follows:-
This invention relates to improvements in the dobbies or shedding mechanism
of looms for weaving and comprises an improved joint or method of jointing or
coupling the draw hooks or catches to the baulk levers, ensuring a broad wearing
surface and a direct pull on the baulks. The improved joint is applied both to
the top and bottom of the baulk levers.
.
The invention also relates to improvements in the cross border mechanism of
loom dobbies and to an improved method of and means employed for "blanking"
or clearing and rendering inoperative the push catches used in cross border
mechanism of such dobbies.
According to this invention the draw hooks or catches are made with a solid
and wide bearing surface, preferably of hook form, such hooked end fitting and
working in a corresponding recess in the baulk lever. The hooked end of the
catch is inserted sideways into the recess or bearing part of the baulk lever, and
being of circular form is prevented from rising in its bearing and so leaving
the baulk lever. Sideways or lateral movement of the hook is prevented by
casting to the baulk lever a clip or slot by which a tonge or projection on the
hook or catch is held when the baulk and hook are in the working position. The
circular boss on the baulk on which the hooked end works is solid and of full
width and terminates in the cast clip for preventing lateral motion of the hook.
In cross border dobbies where the first, last, or other shedding lever is used
to change the position of the lattice barrels, such change is first commenced by
bringing under a peg feeler or tumbler a change peg, as is well understood, and
heretofore such change peg has been on the same chain of lags as the pegging
for the pattern to be woven. It frequently occurs that a pattern may be pegged,
say on twenty lattices, but for the better disposition of the change peg, say five
repeats of such lattices are pegged, making in all a chain of a hundred lags for
a twenty lag pattern. A change peg on the last lag of such chain would there-
fore come under its feeler at every five repeats of such pattern. To obtain similar
results in a more economical and effective manner we remove the change peg from
the ordinary chain of lattices and place it on a separate chain of small lags
carried on a small barrel on the extended ordinary barrel shaft. By placing the
above mentioned twenty lattices, as ordinary, on their barrel and by placing a
chain of a hundred small lags on the extended barrel with one change peg on the
hundredth lattice, it will be seen that we practically convert a chain of twenty
lags into a chain of a hundred, and in like manner any number of lags on the
ordinary barrel may (insofar as the disposition of the change peg is concerned)
be made equivalent to any other length according to the number of lattices on
he extended barrel

page_text: Carried on the dobby by fulcrum stud or shaft is a bell-crank lever, preferably
made in two parts, the short end resting on the peg feeler which causes the
changing jack of the dobby to operate: the other end of this bell-crank lever is
carried over the extended barrel, so that a change peg coming up transmits motion
through the bell-crank lever to the peg feeler. When the arrangement is applied
to two barrels, a second lever fulcrumed on the. dobby is acted on by lags on
another extended barrel, and is so arranged under the bell-crank lever that a
change peg coming up on either extended barrel causes the peg feeler to act as
required. When either ordinary lattice barrel falls out of action, its extended
barrel being on same shaft also falls out of action. An iron chain may be used
in place of wood lags.
In cross border dobbies which are self contained, viz.:-those in which all
changing and measuring is done from the dobby, a measuring barrel carrying a
chain of lags is used. Every lag on this ordinary measuring barrel therefore
represents a repeat off either ordinary lattice barrel.
In order to enable any lattice on the ordinary measuring barrel to represent
any number of repeats, we place an extra measuring barrel carrying small lags
in such a position as to act upon the first or ordinary measuring barrel in the
following manner.
An extra measuring barrel carried on the dobby side (preferably at the opposite
side of the machine to the ordinary measuring barrel) carries a chain of lags.
The small bell-crank lever which drives the ordinary measuring barrel also drives
the extra measuring barrel. A feeler or peg lever is acted on at one end by
pegs on the extra barrel and carries at its oppose end a chain or link attached
to the push catch which turns over the ordinary measuring barrel. Fulcrumed
to the dobby side and extending over the ordinary measuring barrel is another
peg lever carrying a long finger which acts upon the pushing or pulling catch
of the extra barrel. The peg lever governed by the extra barrel is either
weighted, or by spring always kept in contact with the lattices on such barrel
and is so arranged that a blank lattice on the extra barrel will hold up the push
catch of the ordinary measuring barrel and prevent it from turning, so that if
there are fifty lattices on the extra barrel, all blank but one, this chain will when
put into action cause any or every lattice on the ordinary measuring barrel to
stand for fifty repeats of the ordinary shedding lattices. If a blank lattice on
the extra barrel lifts the push catch of the ordinary measuring barrel, a pegged
lattice will allow it to fall, and another lag on the ordinary barrel will be put
into working position.
Instead of the extra barrel and lattices we may employ a disc of metal provided
with adjustable lifters, which lifters will be equivalent to the pegged lags.
For blanking" the push catch in a cross border dobby when one or other o
the barrels falls out of action, we pivot by bolt or stud to the dobby side a leve
with short and long end. The short end is attached to the rocking lever by an
adjustable link. The long end of the lever extends under the push catch which
drives the barrel, such push catch being provided with a finger or projection
cast or secured to it and resting on the long end of the lever. When the rocking
lever swings away the barrel it also pulls at the hooked end of the lever and s
raises the long end and with it the push catch which it governs. As the rocking
lever and barrel rise again to their working position the hooked end of the leve
is permitted to rise dropping at the same time the opposite end and allowing
the push catch to operate its barrel. This arrangement may be applied to on
or more lattice barrels, and it may be applied for "blanking" push catche
whether the barrels are carried on rocking levers or otherwise.
is
1
1
1
1900

page_text: We, JAMES WARD and JOHN WARD, both of Ingham Street Iron Works, Black-
burn, in the County of Lancaster, Machine Makers, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particu-
larly described and ascertained in and by the following statement:-
This invention relates to improvements in the dobbies or shedding mechanism
of looms for weaving and comprises an improved joint or method of jointing or
coupling the draw hooks or catches to the baulk levers, ensuring a broad wearing
surface, and a direct pull on the baulk levers or baulks. The improved joint is
applied both to the top and bottom of the baulk levers.
The invention also relates to improvements in the cross-border mechanism of
loon dobbies, and to an improved method of and means employed for "blanking"
or clearing and rendering inoperative the push catches used in cross-border
mechanism of such dobbies.
Such being the nature and object of our said invention, the following is a
complete description of same, reference being had to the accompanying drawings
in which only so much of a dobby is shewn as is necessary to illustrate the
invention.
Fig. 1 is a side elevation of a baulk lever or baulk, with top and bottom hooks
or catches attached thereto by the improved joint.
Fig. 2 is a side elevation of the top part of a baulk and part of a catch dis-
connected in order to clearly shew the improved joint.
Fig. 3 is a side elevation of part of a cross border dobby shewing the mechanism
when the change peg is taken off the ordinary chain of lags and carried on the
extended lattice barrel.
Fig. 3 is a plan view of the extended lattice barrel.
Fig. 4 is a side elevation of part of a cross border dobby shewing the mechanism
for governing the lattice barrel which carries the measuring lattices.
Fig. 5 is a side elevation of part of a dobby shewing the mechanism for
blanking" the push catches in a cross-border dobby having two ordinary lattice
barrels.
According to this invention and referring to Figs. 1 and 2 of the drawings.
The draw hooks or catches 1, 1 are made with a solid and wide bearing surface
of hook form 1', such hooked end 1 fitting and working in a corresponding
recess 2 at the top or bottom of the baulk lever 2. The hooked end 1 of the
catch 1 is inserted sideways into the recess or bearing part 2 of the baulk lever 2
and being of circular form is prevented from rising in its bearing and so leaving
the baulk lever. Sideways or lateral movement of the hook is prevented by
casting to the baulk lever 2 at the top and bottom a clip or slot 2" in and by
which a tongue or projection 1" on the hook or catch is held when the baulk
and hook are in the working position (see Fig. 1). The circular boss on the
baulk 2 on which the hooked end 1 works is solid and of the full width of the
baulk, and terminates in the cast clip 2 for preventing lateral movement of
the hook 1.
In cross-border dobbies and referring to Figs. 3 and 3 of the drawings. Where
the first, last, or other shedding lever is used to change the position of the lattice
barrels 8, 8 such change is first commenced by bringing under a peg feeler or
tumbler 2, 3 a change peg in the ordinary manner; and, as is well understood
and heretofore such change peg has been on the same chain of lags as the pegging
for the pattern to be woven. It frequently occurs that a pattern may be pegged,

page_text: say on 20 lattices, but for the better disposition of the change peg, say 5 repeats
of such lattices are pegged, making in all a chain of 100 lags for a 20 lag pattern.
A change peg on the last lag of such chain would therefore come under its feeler
(either 2 or 3) at every 5 repeats of such pattern. To obtain similar results in a more
economical manner, we remove the change peg from the ordinary chain of lattices
and place it on a separate chain of small lags 10 carried on the small barrel 9 on
the extended portion of the ordinary barrel shaft. By placing the above mentioned
20 lattices as ordinary on the barrel S*, and by placing a chain 10 of a hundred
small lags on the extended barrel 9 with one change peg 10 on the hundredth
lattice, it will be seen that we practically convert a chain of 20 lags on the ordinary
lattice barrel 8 into a chain of 100 lags and in like manner any number of lags
on ordinary barrel 8 may (in so far as the disposition of the change peg is
concerned) be made equivalent to any other length, according to the number of
lattices on the extended barrel 9.
Carried on the dobby frame 1 by fulcrum stud or shaft 4 is a bell crank
lever 5 preferably made in two parts, the short end 5 resting on the peg feeler 3,
and the long end 5 resting on the extended barrel 9. A change peg 10 on the
lags 10 comming under the end 5 lifts same and consequently depresses 5", and
through the peg feelers 3, 2 causes the changing jack of the dobby to operate
in the ordinary manner.
When the arrangement is applied to two barrels, riz.: barrels 8 and 8, a second
lever fulcrumed to the dobby side is acted upon by the lags on the barrel S
extended and so arranged under the long end of the bell-crank 5 that a change
peg coming up on either extended barrel causes the feeler to act as required.
When either ordinary lattice barrel 8, 8* falls out of action its extended barrel
(being on the same shaft) also falls out of action. An iron chain may be used
in place of wood lags 10.
Referring now to Fig. 4. In cross-border dobbies which are self contained, riz.,
those in which all changing and measuring is done from the dobby, a measuring
barrel 2 carrying a chain of lags is used. Each lag on the ordinary measuring
barrel 2 therefore represents one repeat off either ordinary lattice barrel. In
order to enable any lattice on ordinary measuring barrel 2 to represent any
number of repeats, we place an extra measuring barrel 3, carrying small lags in
such a position as to act upon the first or ordinary measuring barrel 2 in the
following manner. The extra measuring barrel 3 carried on the side of the
dobby (preferably at the opposite side of the machine to the ordinary measuring
barrel carries a chain of lags. The small bell-crank lever 5 which drives the
ordinary measuring barrel 2 by catch 6 also drives the extra measuring barrel 3
by catch 8. A feeler or peg lever 9 is acted on at one end by the pegs in the
extra barrel 3 and carries at its opposite end a chain or link 10 attached to the
push catch G which turns the barrel 2. Fulcrumed to the dobby side 1 and
extending over the barrel 2 is another peg lever 7 carrying a long finger 7 which
acts upon the catch 8 of the extra barrel 3. The peg lever 9 is governed by the
barrel 3 and is either weighted or provided with a spring, whereby it is always
kept in contact with the lattices on the barrel 3, and is so arranged that a blank
lattice on the barrel 3 will hold up, through 10, the push catch of the measuring
barrel 2 and prevent it from turning, so that if there are 50 lattices on the
barrel 3, all blanks but one, this chain of lattices will when put into action, cause
any or every lattice on the barrel 2 to stand for 50 repeats of the ordinary
shedding lattices. If a blank lattice on extra barrel 3 lifts the push catch 6 of
barrel 2, a pegged lattice on barrel 3 will allow push catch 6 to fall, and another
lag on the barrel 2 will be put into working position.
Instead of the extra barrel 3 and lattices we may employ a metal disc provided
with adjustable lifters, such lifters being equivalent to the pegged lags, whilst
the periphery of the disc will be equivalent to blank lags.
Referring now to Fig. 5. For blanking the push catch 3 in a cross border
dobby, when one or other of the barrels falls out of action we pivot by bolt o

page_text: stud 6 to the dobby side 1, a double ended lever 6. The short end 6* of the lever 6
is attached to a rocking lever 5 at 5" by an adjustable link 7. The long end of
the lever 6 extends under the push catch 3, which push catch 3 drives the barrel 4,
such push catch 3 being provided with a finger or projection 3 cast or secured
to it and resting on the long end of the lever 6. When the rocking lever 5
swings away the barrel 4 it also pulls (through 5 and 7) on the hooked end 6
of the lever 6 and so raises the long end of the lever 6 and with it the push
catch 3. As the rocking lever 5 and barrel 4 rise again to their working position,
the hooked end 6 of the lever 6 is permitted to rise, dropping at same time the
opposite end and allowing the push catch 3 to operate its barrel 4. It will be
seen by Fig. 5 that this blanking" arrangement described is applied to the two
lattice barrels, each set of blankers being practically a duplicate of the other.
"
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) The improved construction of joint or means of attaching or jointing the
hooks or catches to the baulk lever, substantially as described and as illustrated
by Figs. 1 and 2 of the accompanying drawings.
(2) The use in combination with a cross border dobby of the extended barrel
for operating the changing jack, as and for the purpose herein described and
substantially as illustrated by Figs. 3 and 34.
(3) The use in combination with a cross border dobby of an additional measuring
barrel for governing the movements of the ordinary measuring barrel, substan-
tially as and for the purpose herein described and as illustrated by Fig. 4 of the
accompanying drawings.
(4) In a cross-border dobby the method of and means employed for blanking,
or rendering inoperative the push catches, substantially as and for the purpose
herein described and as illustrated by Fig. 5 of the annexed drawings.
ก 1
1000
JAMES WARD,
JOHN WARD,
By their Agents, Brierley & Howard,
Penny Bank Chambers, Halifax.