Improvements in the Shedding Mechanism of Looms for Weaving.
Year: 1892

page_text: Date of Application, 22nd Oct., 1892
Complete Specification Left. 18th July, 1893-Accepted, 2nd Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in the Shedding Mechanism of Looms for Weaving.
We JOSEPH WARD, and JAMES WARD both of Ingham Street Iron Works,
Ingham Street, Blackburn in the County of Lancaster, Dobby Makers, do hereby
declare the nature of this invention to be as follows:-
This invention relates to improvements in dobbies of looms for weaving the
object being to enable the weaver or attendant on the loom to turn back or reverse
the lattice or pattern barrel or jacquard of the dobby, either when the loom and
dobby are stationary, or when in motion, or the lattice can be reversed by turning
back the loom or slay.
The appliances can be applied to and used in connection with one or more barrels
on one dobby.
This invention also relates to improvements in the joints or means of connecting
the baulk levers to the shedding or jack levers.
According to this invention the pattern barrels are operated in the ordinary
manner, but for reversing or turning back we employ a cranked or lever carried.
on a fulcrum stud fixed to the dobby. One end of the cranked Tever carries a
catch or pawl, and this end of the lever is connected by spring, or spring and chain
to any fixed point; the opposite end of the cranked lever has a chain or light rod
attached to it.
The lower arm of the cranked lever is by chain passing over a guide pulley,
connected with the ordinary catch or pawl on the lever of the dobby.
On the shaft of the pattern barrel is the ordinary ratchet wheel and also, an
additional ratchet wheel its teeth being in a reverse direction to the first mentioned
onc. When it is desired to reverse or turn back the pattern barrel or jacquard it.
is only necessary that the chain on the lower. end of the cranked lever should be
pulled whereon the catch or pawl on the lever engages with the teeth in the
additional ratchet wheel and the latter and the barrel are reversed, the chain passing
over the guide pulley lifting the catch or pawl on the lever out of range of
the ordinary ratchet wheel.
When the chain is released the spring pulls the cranked lever and removes its
pawl from contact with the additional ratchet wheel at the same time allowing the
catch or pawl on the lever to engage with the ordinary ratchet wheel.
Each one of the pattern barrels is fitted with apparatus as herein before described
and the pull chains from the cranked levers may be connected together or operated
independently as desired.
The lower end of the cranked lever may be connected by chain with one of the
ordinary jack levers so that (as indicated by the pattern pegs) the cranked lever
will lift the catch or pawl out of gear with its ratchet and the barrel will remain
stationary for plain weaving and until any suitable measuring motion iudicates a
change.
The pull chains may be connected to a lever underneath the loom, such lever
having fixed to it an elbow joint or quadrant lever carrying a runner. A tappet on
the bottom shaft, when. the loom is turned back, acts on the runner and depresses
the lever which draws down the pull chain or chains and reverses the barrel or
barrels.
"When the loom is running the tappet merely lifts the runner on its elbow joint.
aud the lever remains stationary.
The runner can be moved out of contact with the tappet by means of a chain or
rod connected thereto and operated by hand or treadle as desired.
The improved joints or connections for the jack levers and baulks consist of

page_text: links at the ends of which are formed hooks which engage with studs cast between
ears which latter prevent the hooks moving sideways or getting off the pins, or the
links may have pins cast at their end such pins being received in holes formed in:
lugs cast to the baulk and jack levers."
Dated this 20th day of October 1892.
WALTER BRIERLEY,
Penny Bank Chambers, Halifax, Agent for the Applicants..
. COMPLETE SPECIFICATION.
Improvements in the Shedding Mechanism of Looms for: Weaving.
We, JOSEPH WARD.and JAMES WARD, both of Ingham Street Iron, Works,
Ingham Street, Blackburn, in the County of Lancaster, Dobby 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 of looms for weaving, the
object being to enable the weaver or attendant on the loom to turn back or reverse
the lattice or pattern barrel or jacquard of the dobby; either when the loom and
dobby are stationary; or when in motion, or the lattice can be reversed by turning
back the loom or slay.
The appliances can be applied to and used in connection with one or more barrels
on one dobby.
This invention also relates to improvements in the joints or means of connecting
the baulk levers to the shedding or jack levers.
Such being the nature and object of my said invention, the following is a
complete description of same, reference being had to the accompanying drawings, in
which
Fig. 1. is a front elevation of apparatus employed for reversing; or turning back
the pattern barrel or jacquard of the dobby.
Fig. 2. is a side elevation of the apparatus for controlling the mechanism for
reversing or turning back the pattern barrel or jacquard of the dobby.
Fig. 3 is a side elevation of baulk lever, and jack or shedding lever, shewing the
improvements in the joints or means of connecting-said levers.
Fig. 3 is an end view of part of Fig. 3.
Figs. 4. 5. 6. and 7 are details.
According to this invention the pattern barrels 1 are operated in the ordinary
manner, but for reversing or turning back we employ a cranked or lever 2
carried on a fulcrum stud 3, fixed by bracket 4 to the frame of dobby. One end of
the cranked lever 2 carries a catch or pawl 5 loosely mounted on a pin thereon, and
this end of the lever 2 is connected by spring 6, or spring 6 and chain to any fixed
point of the dobby; the opposite end of the cranked lever 2 has a chain 7, or light
rod attached to it. The lower arm of the cranked lever 2 is by chain 8 passing
over a guide pulley 9 on the dobby frame connected with the ordinary catch or
pawl 10 on the lever 11 of the dobby.
On the shaft of the pattern barrel 1 is the ordinary ratchet wheel 12, and also
an additional ratchet wheel 13, its teeth being in a reverse direction to the first
mentioned one. When it is désired to reverse or turn back the pattern barrel or
jacquard, it is only necessary that the chain 7 on the lower end of the cranked
lever 2 should be pulled, whereon the catch or pawl 5 on the lever 2 engages with
the teeth in the additional ratchet wheel 13, and the latter and the barrel 1 are
reversed, the chain 8 passing over the guide pulley 9, lifting the catch or pawl 10
on the lever 11 out of range of the ordinary ratchet wheel 12
When the chain 7 is released, the spring 6 pulls the 'cranked lever 2, and
removes its pawl 5 from contact with the additional ratchet wheel :13, at the same
4%A4

page_text: time allowing the catch or pawl 10-on the lever 11 to engage with the bruary
ratchet wheel '12.
Each one of the pattern barrels is fitted with apparatus as hereinbefore described
and in this case the several pull chains 7 from the cranked levers 2 may be connected
together or operated independently as desired.
The lower end of the cranked lever 2 may be connected by chain 7 with one of
the ordinary jack levers, so that (as indicated by the pattern pegs) the cranked
lever 2 will lift the catch or pawl 10 out of gear with its ratchet 12, and the barrel 1
will remain stationary for plain weaving and until any suitable measuring motion:
indicates a change.
The pull chains 7 may be connected to a lever 14 underneath the loom, such
lever 14 being mounted and free to rock on the fulcrum stud 16, carried in the
bracket 17 fixed to the front bottom rail of the loom. Fixed to the lever 14 is the-
vertical rod 18, on the upper end of which is loosely mounted the lever 19, which.
with the rod 18 forms an elbow joint, the said lever 19 being free to move in an
upward direction only, and on the outer end of the lever 19 is the runner 22.
A tappet 20 on the bottom or tappet shaft 21, which when the loom is weaving,
revolves in the direction indicated by the arrow, at each revolution comes in
contact with the runner 22, but merely lifts the runner 22 and lever 19, the latter.
turning on its elbow joint, and the lever 14 remains stationary.
If the loom is turned back, the shaft 21 and tappet 20 revolve in a reverse-
direction, and at each revolution, the end of the tappet 20 comes in contact with
the runner 22, and depresses the latter along with the vertical rod 18, and so the
lever 14 is depressed, turning on its fulcrum stud 16, and the chain 7 is pulled, and
the pattern barrel or jacquard is moved back the space of one tooth of the ratchet
wheel 13. A counter balance weight or spring 23 moves the lever 14 to its.
normal position as soon as the tappet 20 has moved clear of the runner 22, so that.
the several parts are in position to be again acted upon by the tappet 20 at the
next backward revolution. It will be seen that the pattern barrel or jacquard 1 is.
moved back or reversed one row of cards or pegs for each backward revolution of
the shaft 21, so that the barrel or jacquard and the remaining parts of the dobby
and loom are always in correct relative positions.
The runner 22 can be lifted clear of the tappet 20, so that the latter will not.
touch it when revolving, by the operative pulling the chain 25, one end of which is
connected to the lever 19, the other end extending to the front, or other part of
the loom where more convenient, and accessible. 24 is a grate for steading the:
movement and limiting the amount of motion of the lever 14.
The improved joints or connections (see Sheet 3) for the jack levers 26 and
baulks 27, consist of links 28, at the ends of which are formed hooks 29 which
engage with studs 30 cast between cars 31. 31, which latter prevent the hooks 29.
moving sideways, or getting off the pins or studs 30, or the links 28 may have
pins 30 cast at their ends (see Figs. 6 and 7) such pins 30 being received in holes.
formed in lugs cast to the baulk and jack levers.
Having now particularly described and ascertained the nature and object of our
said invention, and in what manner the same is to be performed, we declare that.
what we claim is :-
(1.) The pattern barrel 1 on which are the ratchet wheels 12. 13, the catch or
pawl 5, cranked lever 2, chain 8, and catch 10, all in combination, and for the
purpose herein described, and substantially as illustrated by Fig. 1 of the annexed.
drawings.
(2.) The pattern barrel 1 on which are the ratchet wheels 12. 13, the catch or
pawl 5, cranked lever 2, chain 8, and catch 10, together with the chain or rod 7,.
lever 14, vertical rod 18, hinged lever 19, and tappet 20, all in combination, and as
and for the purpose herein described, and as illustrated by Figs. 1 and 2 or the
accompanying drawings.
(3.) The links 28 having hooks 29 or studs 30 when used for connecting baulk

page_text: and jack levers, as herein described and' substantially as illustrated by Sheet 3 of
the accompanying drawings.
Dated this 1st dor of Tulu 1802
JOSEPH WARD,
JAMES WARD,
By their Agent, Walter Brierley,
Penny Bank Chambers, Halifax.