Improvements in Dobbies of Looms for Weaving.
Year: 1888

page_text: Date of Application, 31st Oct., 1883
Complete Specification Left, 30th Aug., 1889-Accepted. 5th Oct.. 1889
PROVISIONAL SPECIFICATION.
Improvements in Dobbies of Looms for Weaving.
We, JAMES WARD and JOHN WARD, both of Ingham Street Iron Works, Ingham
Street, Blackburn, in the County of Lancaster, Dobby and Jacquard Machine
Makers, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in dobbies and comprises improved
connections for attaching the several parts of the dobby without the necessity of
boring the parts, to improved grates for holding and adjusting the needles without
boring as heretofore, an improved easing motion for preventing breakage of the
pattern pegs, and to appliances for automatically controlling and regulating the action
of the peg or pattern barrels.
According to this my invention I construct at the joint end of the catches or draw
hooks a disc or lug which is received sideways in a recess or clip formed in the ends
of the vertical levers to which the jack levers are attached by means of which the
connection is completed between draw hook and vertical lever and providing an
increased bearing surface with a straight or direct pull of the hooks on the vertical
levers. In some class of dobbies I employ for connecting the vertical levers to the
jack levers a link provided at each of its ends with a disc or lug as aforesaid which
are received within recesses formed in the vertical and jack levers dispensing with
boring and securing a direct line of action or pull on the draw hooks, vertical levers
and jack levers.
The grates for the hooks I construct open at the top having a detachable guard or
cover which may be removed or turned aside so that any hook can with convenience
be detached when necessary, between the bars of the grating I cast or form semi-
circular recesses there being like recesses formed in a cross rail, these recesses being
opposite each other form oyes or holds through and in which the needles are received
and work there is thus no boring for the needles as heretofore required the bottom
recessed rail forming part of the lower line of eyes is adjustable so that the lower
end or point of the needle which rests upon the end of the tumbler lever can be set
and adjusted on such lever. I also construct in the grate a cross rib which strengthens
the grate and serves as a rest for the hooks.
To prevent breakage or displacement of any pattern pegs I lift the tumbler lovers
so that the peg may pass to its position for supporting the tumbler lever without
having to lift or rub on the under side of such lever. The raising of the tumbler
levers is effected by means of a reel or revolving arms which act upon the underside
of the tumbler levers which are constructed with curved and relieved outline on
which the revolving arms act so as to lift the levers into position for the pegs passing
thereunder or dropping the lovers when no peg is present. I operate the revolving
arms by means of a toothed wheel on the axis thereof gearing with a toothed wheel
on the axis of the peg pattern barrel or the revolving arms may receive motion
from a catch and catch wheel similar to what is employed for operating the pattern
peg barrel.
Where two pattern barrels are employed I mount one on a lever which is attached
to a cranked lever and in conjunction with which is a vertical catch bar, there is a
stud on the cranked lever carrying an arm which is connected with the outer one of
he jack levers, the motion of the latter being controlled by peg or pattern mechanism
o that this barrel can be put in and out of range of its operating catch. The second
barrel is stationary except as to rotation and the catch for operating this barrel is
ttached to a chain passing over guide pulleys and connected with the first lever so
hat the catch of the second barrel is under control of the jack lever that either
arrel can be brought into use as indicated by the peg mechanism and as required for

page_text: the pattern being woven both barrels are in play of the operating catches when one
of the chains is thrown off. In the weaving of handkerchiefs towels or or other
pattern fabrics of definite length I employ any of the ordinary measuring motions or
devices to which I attach a chain connected with the catch bar herein referred to
whereby the latter is pulled off its holding lever when the necessary variation in the
pattern requires the pattern barrels to be changed or varied.
Dated this 30th day of October 1888.
WALTER BRIERLEY,
Town Hall Buildings, Halifax, Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Dobbies of Looms for Weaving.
We, JAMES WARD, and JOHN WARD, both of Ingham Street Iron Works,
Ingham Street, Blackburn, in the County of Lancaster, Dobby and Jacquard
Machine Makers, 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 to improvements in dobbies and comprises improved
connections for attaching the several parts of the dobby without the necessity of
boring the parts, to improved grates for holding and adjusting the needles without
boring as heretofore, an improved easing motion, for preventing breakage of the
pattern pegs, and to appliances for automatically controlling and regulating the
action of the peg or pattern barrels.
According to this my invention I construct at the joint end of the catches or
draw hooks a disc or lug which is received sideways in a rocess or clip formed in the
ends of the vertical levers to which the jack levers are attached by means of which
levers the connection is completed between draw hook and vertical lever and providing
an increased bearing surface with a straight or direct pull of the hooks on the vertical
levers. In some class of dobbies I employ for connecting the vertical levers to the
jack levers a link provided at each of its ends with a disc or lug as aforesaid which
are received within recesses formed in the levers dispensing with boring and securing
a direct line of action or pull on the draw hooks, vertical lovers and jack levers.
The grates for the hooks I construct open at the top having a detachable guard or
cover which may be removed or turned aside so that any hook can with convenience
be detached when necessary, between the bars of the grating, I cast or form semi-
circular recesses there being like recesses formed in a cross rail, these recesses being
opposite each other form eyes or holds through and in which the needles are received
and work, there is thus no boring for the needles as heretofore required, the bottoni
recessed rail forming part of the lower line of eyes is adjustable so that the lower end
or point of the needle which rest upon the end of the tumbler lever can be set and
adjusted on such lever, I also construct in the grate a cross rib which strengthens the
grate and serves as a rest for the hooks.
To prevent breakage or displacement of any pattern pegs 1 lift the tumbler levers
so that the peg may pass to its position for supporting the tumbler lever without
having to lift or rub on the underside of such lever.
The raising of the tumbler levers is effected by means of a reel or revolving arms
which act upon the underside of the tumbler levers which are constructed with
curved and relieved outline on which the revolving arms act so as to lift the levers
into position for the pegs passing thereunder or lowering the levers when no pegs is
present.
I operate the revolving arms by means of a toothed wheel on the axis thereof
gearing with a toothed wheel on the axis of the peg pattern barrel or the revolving
arms may receive motion from a catch and catch wheel similar to what is employed
for operating the pattern peg barrel.
Where two pattern peg barrels are employed I mount one on a lever which is

page_text: attached to a cranked lever and in conjunction with which is a vertical catch bar,
there is a stud on the cranked lever carrying an arm which is connected with the
onter one of the jack levers the motion of the latter being controlled by peg or
pattern mechanism so that this barrel can be put in and out of range of its operating
catch.
The second barrel is stationary except as to rotation and the catch for operating
this barrel is attached to a chain passing over guide pulleys and connected with the
first lever so that the catch of the second barrel is under control of the jack lever that
either barrel can be brought into use as indicated by the peg mechanism and as
required for the pattern being woven both barrels are in play of the operating catches
when one of the chains is thrown off.
"
In the weaving of handkerchiefs, towels or other pattern fabrics of definite length
I employ any of the ordinary "measuring motions or devices to which I attach a
chain connected with the catch bar, herein referred to whereby the latter is pulled off
its holding lover when the necessary variation in the pattern requires the pattern
barrels to be changed or varied.
Such being the nature and object of our said invention the following is a completo
description of same reference being bad to the accompanying sheets of drawings in
which
Fig. 1. is a side elevation of a dobby having our improvements applied thereto.
Fig. 2. is a side elevation of a dobby having attached thereto our improved
appliances for automatically controlling, and regulating the action of the peg, or
pattern barrels.
Fig. 3. is a side elevation of levers shewing our improved connections for attaching
the several parts of the dobby together without boring or drilling.
Fig. 4. is a plan view of our improved grate for holding, and adjusting the
needles.
Fig. 5. is a sectional elevation of Fig. 4 on line A. B.
Fig. 6. is a side elevation similar to Fig. 2 but shewing the catches for operating
the jacks and extends the view to right hand of Fig. 2.
The remaining figures are details of several parts.
According to this our said invention we construct at the joint end of the catches
or draw hooks 1 (see Fig. 3) a dise or lug 2 which is received sideways in a recess, or
clips 3 formed in the ends of the vertical levers 4 to which the jack lovers 5 are
attached by a similar joint at 6 and by means of which the connection between such
levers, and between the draw hooks 1 and vertical lever 4 is completed, and an
increased bearing surface with a straight or central pull of the hooks on the vertical
levers is obtained. Further illustrations of this improved joint are shewn in detail on
sheet in which it will be seen the end of one lever is recessed and the opposite end
of the corresponding lever is reduced in thickness so as to be received within the
projecting sides of the recess which prevents the tendancy to lateral motion and
bring the lovers into one line or plane.
In some class of dobbies we employ for connecting the vertical levers 4 to the jack
levers 5 a link 7 provided at each of its ends with a disc or lug 8 (see sheet 4) which
lugs are received within recesses or clips 3 formed in the levers 5 and 9 thus for
fitting the parts dispensing with all boring or drilling and securing a direct pull or
line of action on the draw hooks 1 vertical levers 4 and jack levers 5.
The grates 10 (see Figs. 4 and 5) for the draw hooks 1 we construct open at the
top having a detachable gourd or cover 11 which may be removed, or turned aside so
that any draw hook or series of books, can with convenience be detached when
necessary.
Between the bars 10 of the grating we cast or form semicircular recesses 12, these
being similar to the recesses 12 formed in a cross rail 13; these recesses, when the
parts, ie the grating 10 and cross rail 13, are put together, being opposite each other,
(see Fig. 5) form eyes or holes 14 through and in which the needles 15 are received,
and work.
There is therefore no boring of holes or eyes for the needles as heretofore required.

page_text: "
The bottom recessed rail 13 forming part of the line of eyes or holes 12, is
adjustable, so that the lower end or point of the needle 15 which rests upon the end
of the tumbler lever 16 (Figs. 1 and 2) can be set and adjusted on such lever, we
also construct in the grate a cross rib 17 which strengthens the said grate, and also
,serves as a rest for the draw hooks 1. 1.
-To-prevent breakage, or displacement of any of the pattern pegs 18, (see Fig. 1)
we lift the tumbler levers 16 so that the peg, or pegs may pass into position for
supporting the tumbler lever or levers, without having to lift, or rub on the underside
of such levers.
The raising of the tumbler lever 16 is effected by means of a reel, or revolving
arms 19 which act upon the underside of the tumbler levers 16 which are constructed
with a curved outline and when the arms 19 revolve all the tumbler levers 16 are
raised into position for the pegs to pass thereunder the said levers being cased down
by the reel in case or peg or pegs are in the lattice then under the barrel.
By the use of the reel or revolving arms 20 the tumbler levers 16 are gently
lowered on to the peg, or pegs in the barrel, instead of the pegs having to lift the
levers 16.
We operate the revolving arms, or reel 20 by means of a toothed wheel 21 which
is in gear with, and driven by a toothed wheel 22 on the axis of the pattern barrel 23.
Or the reel or arms 20 may receive their motion from a catch such as 24, and catch
wheel 25, similar to the catch, and wheel employed for imparting motion to the peg
barrel 23. The catch 24 is mounted and carried on the lever 26 as ordinary.
Where two pattern barrels 25 and 27 are employed (see Fig. 2)'l mount one 27
on a lever 28 which is attached by a link to a cranked lever 29, and in conjunction
with the lever 28 is a vertical catch bar 30.
There is a stud 31 on the cranked lever 29 carrying an arm 32 connected to the
outer one of the jack levers 5 (see Figs. 2 and 6) which jack lever 5 is used alone for
the purpose of changing the positions of the barrel 25 as required, the motion of the
lever being controlled by peg, or pattern so that the barrel 27 can be put in and
out of gear with its operating catchi 34 at required intervals and as hereinafter
described, the second barrel 25 (see Fig. 6) and in dotted lines in fig. 2 is carried by
brackets 27 bolted to the side frame of the dobby as ordinary. The catch 33 for
operating the barrel.25 is under control of the bell crank lever 29 and lever 28 and
chain 28 so that as the rocking arm 26 operates these catches 33 and 34 one or both
of them may be operating on their respective catch wheel 25. 27. and turning the
peg lags 18 according to the pattern being woven but in the barrel 25 is the one in
general use, 27 being the barrel conveniently taken in and out of position of its
operating catch as required in the weaving of pocket handkerchief's borders and the
like goods requiring one or both barrels to be in operation.
When weaving patterns requiring both barrels to be in operation for a time 25 is
mounted on a fixed bracket as shewn Figs. 2. 6. (dotted line) and the chain 28ª is
dispensed with, and it will be seen that as long as 30 is in position shewn in drawings
both catches 38. and 34 are are acting on the catch wheels 25. 27, but when measuring
motion pulls 40. 27 is lowered out of action and one barrel only is in use.
In some cases I mount the barrel 25 on the lever 28 by which it is taken out of
position or clear of its operating catch 33 as illustrated by Fig. 2.
The catches 33. 34 are put out of position for operating their respective wheels 25
and 27 and pattern barrels connected therewith at required intervals through the
agency of any of the ordinary well known measuring motions applied to the loom,
and connected with the chain 40 so that the latter will at required and stated intervals
be pulled thereby turning the bell crank lever 39 on its stud, whereon the chain 41
draws back the vertical catch bar 30 until its catch 38 is released from the bar 31
the spring 31 then pulls up the bar 30, the lever 28 moving on its fulcrum 41 lowers
the pattern barrel and wheel 27 clear of the catch 34 the barrel 27 is thus put out of
position until it is again required for use when it will be brought in position by a peg
on the lattice of the wheel 25 operating the tumbler needle and draw hook (shewn in
Fig. 6) whereby the jack lever 5 will be operated and through the levers 29. 28 it

page_text: will be raised into position again. So likewise when the catch wheel, and barrel 25
are mounted and carried on the lever 28 the lever will operate and the pattern
barrel 25 will be put in and out of position of its operating catch 33 by means of the
measuring motion and connecting chains, draw hooks and jack lever, as described.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
11
(1.) The improved construction of joint or means of attaching or jointing the
levers as herein fully described and illustrated by the annexed drawings.
(2.) The improved construction of grate shewn by Figs. 4 and 5 of the annexed
drawings and as herein described.
(3.) The revolving reel 19 operated by catch or gear when applied to and for
purpose of lifting or lowering the tumbler levers as herein described.
(1.) The construction, combination and arrangement of the mechanism for
controlling the operating catches 33. 34 of the barrels 25 and 27, the barrel 25 being
carried by bracket by 27 or by the lever 28 as herein described and substantially as
illustrated.
Dated this 29th day of August 1889.