AN IMPROVED SHEDDING MOTION FOR LOOMS
Year: 1885

page_text: I JOE PEEL of N° 61 Lord's Hill Street Oldham in the County of Lancaster
Loom Overlooker do hereby declare the nature of my invention for AN IMPROVED
SHEDDING MOTION FOR LOOMS to be as follows:-
:-
The object of this invention is to impart a positive up and down shedding
motion to the shafts or healds of the loom, and at the same time to obtain a
perfect "lock" not only at the top and bottom of the shed but also throughout the
whole stroke.
In a bracket attached to the loom side I support a suitable number of vertical
sliding bars (one to each shaft or heald) the sliding bars being attached to the
healds by cords passing around pulleys; or direct to the jacks, one cord being
attached to the top shaft and the other to the bottom shaft of each beald.
Each of these vertical sliding bars is provided with a bowl which works between
the two jaws of a forked plate. A series of these forked plates being strung upon
two shafts, side by side, and a horizontal to and fro motion being communicated
thereto by means of a connecting rod actuated by a rocking lever, the other end of
the said lever being connected to a crank pin fixed in a disc carried by the crank
shaft. Or the to-and-fro motion may be given to the forked levers in any other
convenient manner.
The entrance to the jaws of these forked levers is only just wide enough to
embrace the bowls on the vertical sliding bars and hold them steady in the central
position but the inner part is, much wider, and in this wider part is placed a tongue
or wedge which as the plates slide forward comes either above or below the bowl
and either depresses or raises it so as to raise or lower the heald to which it is
connected.
These tongues or wedges are provided with lugs or projections which are acted
upon by the pegs, bowls or other portions of the pattern chain which is worked in
the usual manner by the index machine or dobby.
Whenever there is a peg, bowl, or other projection on the pattern chain the
tongue or wedge is raised and thus the bowl in the vertical slide being depressed
the corresponding shaft is raised; whilst on the other hand when a blank space
occurs the tongue or wedge falls by its own weight and the bowl being thereby
raised, the corresponding shaft will be pulled down.
ז
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100%
GEORGE DAVIES,
Agent for the Applicant,
4, St. Ann's Square, Manchester..

page_text: .
"
An Improved "Shedding Motion" for Looms.
I JOE PEEL of 61 Lords Hill Street Oldham in the County of Lancaster
Loom Overlooker do hereby declare the nature of my invention for "AN IMPROVED
SHEDDING MOTION FOR LOOMS" and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement:-
"
The object of this invention is to impart a positive up-and-down " shedding
motion" to the shafts or healds of the loom and at the same time to obtain a
perfect "lock" not only at the top and bottom of the shed but also throughout the
whole stroke.
The improved apparatus by means of which I propose to effect this object will
be readily understood on reference to the annexed sheet of drawings and the
following explanation thereof.
Fig. 1. on the drawings is a side elevation of my improved shedding motion.
Fig. 2. is a plan view of tlie same with the upper ends of the vertical sliding bars
cut off, and Fig. 3 is a vertical section thereof, in a different position to Fig. 1.
In a bracket a, a attached to the loom side I support a number of vertical
sliding bars b, 6 (one to each shaft or heald) the said bars being provided with
T-ends b¹, to which cords bands or wires are attached the said cords bands or
wires passing over pulleys, and one cord being connected to the top shaft and the
other to the bottom shaft of each heald. Or the cords, bands or wires may be
attached directly to the jacks if preferred.
Each of these vertical sliding bars is provided with a bowl c, c which works
between the two jaws of a forked plate d, d.
These forked plates may be made in the form shown detached at Fig. 4. but
I prefer to make them as shown on Figs. 1 and 3 by closing the outer end of the
slot, this form. giving greater strength and allowing them all to be connected
together by a tie rod e, e.
A series of these forked or open slotted plates d, d being strung together upon
two shafts ff and g, g side by side, a horizontal to and fro motion is communicated
thereto by means of a connecting rod h, h actuated by a crank i i driven from the
crank shaft, of the loom by means of the spur gearing 1, 7 or it may be
actuated by a rocking lever, the other end of the said lever being connected to
a crank pin fixed in a disc carried by the crank shaft, or the to-and-fro motion
may be imparted to the series of forked or slotted plates in any other convenient
manner.
The space m, m between the jaws of these levers (when made in the form shown
at Fig. 4) or the recess m m when the levers are made as shewn at Figs. 1. and 3.
is only just wide enough to embrace the bowls c, c on the vertical sliding bars b, b
and then hold them steady in the central position as shown at Fig. 3. but the inner
space is much wider, and in this wider part of each lever is placed a tongue or
wedge, which as the plates d, d slide forward in the direction of the arrow
comes either above or below the bowl c, and either depresses it, or raises it (as
shown at Fig. 1) so as to raise or lower the heald to which it is connected.

page_text: These tongues or wedges n, n are provided with lugs or projections o, o which
are acted upon by the bowls p, p or by pegs or other projecting portions of the
pattern chain q q which is worked by the usual means for actuating the index
inachine or Dobby.
Whenever there is a peg, bowl, or other projection on the pattern chain its
corresponding tongue or wedge n, n is raised and thus the bowl c on the corre-
sponding vertical slide b, b being depressed, the corresponding shaft is raised,
whilst on the other hand when a blank space occurs the corresponding tongue or
wedge n, n falls by its own weight and its bowl c being thereby raised as the slides
move forward, the corresponding shaft will be pulled down.
And it will be evident that as the space between the tongue n, n and the inner
side of the forked or slotted plate d, d is only wide enough to contain the bowl
there will be a perfect "lock" not only at the top and bottom of the shed but
throughout the whole stroke.
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
The improved shedding motion for looms substantially as hereinbefore described
and illustrated by the drawings annexed, consisting in the combination of a series
of forked or open slotted plates moving to and fro horizontally, in which work a
series of tongues acted upon by the pattern chain, so as to come either above or
below bowls attached to vertical sliding bars connected to the healds or shafts, or
to the jacks, whereby the shedding of the warp threads is effected with greater
certainty and a perfect "lock" throughout the whole stroke is obtained.
Dated this 7th day of November 1885.
GEORGE DAVIES,
Agent for the Applicant,
4, St. Ann's Square, Manchester.