Improvements in and connected with Reed Motions for Loose Reed Looms.
Year: 1889

page_text: Date of Application, 7th Feb., 1889
Complete Specification Left, 7th Nov. 1889-Accepted, 21st Dec.. 1889
PROVISIONAL SPECIFICATION.
Improvements in and connected with Reed Motions for Loose Reed
Looms.
I, Jacob Jucker, of 60, Peter Street, Manchester, in the County of Lancaster,
Mechanical Engineer, do hereby declare the nature of this invention to be as
follows:-
My invention relates to loose reed looms and consists in improved arrangements
or combinations of mechanisms for holding the reed firmly while the weaving proceeds
rightly and for releasing the same when the shuttle sticks in the shed, combined with
arrangements for relieving the shuttle from the pressure of springs actuating the
reed motion while it is being picked and runs into the shuttlebox.
In carrying out my invention I suspend the reed as usual in a groove in the under-
side of the top rail of the lathe in such a manner that it can swing back. The bottom
of the reed I hold in a groove of a horizontal bar or its equivalent hereinafter called
reed holder attached to or formed with two or more vertical slides arranged at the
back of the lathe bottom and guided in suitable brackets. These slides are arranged
near to each sword and springs are attached to them and the swords, which pull the
slides and reedholder down when not held up by the arrangements hereinafter described
and liberate the reed, so that it can swing back. The slides rest at their bottom ends
upon two levers movable on hinges fixed to the underside of the lathe bottom near to
the front of the same. Underneath the lathe bottom near to the back of the same a
stop rod is arranged similarly to the usual one, supported in brackets fixed to the lathe.
To the stoprod are forged two levers, hereinafter called riders, with shoes at the end
with which they ride upon blocks fixed to each loomside when the lathe is in its
backward position and the crank about 60 degrees from its back centre in either
direction.
Two curved fingers are attached to the stoprod which pass through the backswells
of the shuttleboxes and are held a short distance away from the shuttle while the
riders are upon the blocks, whose upper surface is formed to the arc of a circle struck
from the centre of the rocking rail. The riders are connected by sliding pins or
otherwise to the levers supporting the reedholder slides in such a manner that the
riders and levers move up and down simultaneously. As the lathe moves forward, the
riders slip off the slide blocks and the springs pull the reedholder with the levors
supporting it, and the riders connected to the levers down till the stop rod fingers
come against the shuttle in its box, the downward movement of the reedholder
however being so small that the reed bottom does not pass out of the groove but
continues to be held. If the shuttle sticks in the shod or misses the box, the fingers
can pass forward into the shuttleboxes and the reed holder is pulled further down by
the springs so that it liberates the reed and the latter can swing back. In order to
relieve the shuttle from the pressure of the springs transmitted through the carriers
and riders to the stoprod fingers, I attach opposite to each crank arm a curved arm
to the stoprod and another curved arm or its equivalent to each crankarm, the under-
side of the latter and the upperside of the former arm being curved to arcs of circles
struck with the same radius from the centre of the pins connecting the swords and
crank arms, and the ends of the curved arms being rounded or tapered. The curved
arms are out of contact while the crank arms are in their higher positions and the
cranks move from the back centre to some distance beyond the top centre, when they
come into contact and sliding upon each other hold the finger off the shuttle and
keep it in this position during the backward movement of the lathe till the riders are
again upon the blocks. The shuttles are thus relieved from the pressure of the springs
actuating the reed motion while they are picked and run into the shuttle.box and only
subiect to the nanal pressure of the backswell springs

page_text: Instead of drawing the reedholder down by springs, in some cases I draw it
down positively by means of the following modified arrangements. I hold up the
reedholder by means of flat spring blades fixed to the underside of the lathe
bottom.
The stoprod with fingers, riders, and curved arms is arranged as hereinbefore
described. At the side of each of the blocks on which the riders slide 1 arrange a
beam-lever vibrating on a fulcrum near the back ond of the block. The front arm of
this lever is so forinel that when held up it forms a continuation of the surface of
the block. At the end of the back arm of the lever a lateral wedgshaped projection
is formed, the edge of the wedge being towards the back. On the slides attached to
the reedholder other wedges are laterally formed with their elges opposite to those
on the lever. These wedges are in such positions that those on the lever pass under
those on the slides when the riders are on the blocks or otherwise beld up in the
manner hereinbefore described. Strong spiral springs are attached to the riders and
the swords and pull the former downwards when they pass off the blocks unless held
up by one of the fingers pressing against the shuttle in one of the boxes. When the
shuttle sticks in the shed or misses its box, theso springs act and pull the riders
down. The latter depress the front ends of the beami-levers upon suitable stops and
thereby raise the lack ends so that the edges of the wedges on the lovers are slightly
above those on the reedholder slides, and the wedges coming into contact by the
forward movement of the lathe those on the slides are depressed and draw the read-
holder down, whereby the reed is liberated. As the lathe approaches the end of its
forward beat, the curved arms bereinl efore described come into contact and turn the
stop rod and raise the riders off the beam-levers; so that the latter can return to their
former positions as soon as the wedges have passed over each other, and at the same
time the spring-blades supporting the reedholder lift the latter up again to its original
position.
A finger is attached to the stop rod which when the shuttle sticks in the shed and
the stoprol is turned forward by the arrangements hereinbefore described comes
against a part connected to the starting lover of the loom and disengages the same
so that it shifts the strap to the loose pulley in the ordinary manner, but which misses
said part when the stoprod is held by the shuttle.
Datad this 2nd day of February 1880
COMPLETE SPECIFICATION.
Improvements in and connected with Reed Motions for Loose Reed
Looms.
1, JACOB JUCKER of 60, Peter Street, Manchester in the County of Lancaster,
Mechanical Engineer, do hereby declare the naturo 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:—
My invention relates to loose reed looms and consists in improved arrangements or
combinations of mechanism for holding the reed firmly while the weaving proceeds
rightly and for releasing the same when the shuttle sticks in the shed or misses its
box, combined with arrangements for holding the reed and at the same time relieving
the shuttle from the pressure of springs actuating the roed motion while it is being
picked and runs into the shuttle box.
On the two shoots of drawings appended hereunto fig. 1 shows a front view of a
loom lathe bottom with my improved rood motion attached.

page_text: Figs. 9, 10, 11 and 12 side view sectioned along line C. D. of the plan, in the
corresponding positions.
In carrying out my invention I suspend the reed a as usual in a groove in the
under side of the lathe cap or top rail a' in such a manner that it can swing back.
To the back of the lathe bottom 6 1 fix a bar c by bolts c¹ with distance pieces c³
between the back of the lathe bottom and the bar c, so that another flat bar d, herein-
after called reed-holder, can slide between c and b. The reed-holder d is so arranged,
that it fits behind the bottom of the reed a, for which purpose it may be partly or
entirely grooved as shewn on the drawings, and when in the positions shown by figs. 1
to 7 holds the reed a firmly in its position as a fast reed is held. The reed-holder d
is formed with slots d fitting over the distanco pieces c³ and long enough to allow the
reed-holder to drop down into the position shewn by fig. 8 and liberate the bottom
of the reed, so that it can swing back. Attached to the reedholder d are two
brackets d' having slots in their lower part and placed next to the lathe swords e.
Into the slots d³ two levers fenter, which are moveable on pins f¹ in brackets f³
fixed to the underside of the lathe bottom near to the front of the same. Underneath
the lathe bottom, near to the swords e, a stop rod g is arranged similarly to the stop
rod usually arranged in fast read looms. The stop rod is supported in brackets g¹
fixed to the underside of the lathe bottom and intermediate supports formed on the
distance pieces . Forged on or attached to the stop rod y are two levers / bent at
their front ends, hereinafter called riders which ride upon blocks ¹ fixed to the
loom side when the lathe is in its backward position and the crank within about
60 degrees from its back centre in either direction as shewn by fig. 11. These
blocks are curved to a radius struck from the contre e' of the sword pivots, so that
the oscillating motion of the lathe produces no movement of the stop rod while the
riders are on the blocks. Two curved fingers k are attached to the stop rod, which
pass through the back of the shuttle boxes and are so adjusted as to be held just
clear of the shuttle m while the riders are on the blocks h. Two lugs n are
forged to the stop rod to the top of which fingers n' are bolted which pass through
slots in the lovers and have helical springs n attached to them, the other end
of said springs being attached to the swords e. The springs tend to turn the stop
rod forward. When the crank is near its back centre, as shewn on figs. 7 and 11,
the riders are on the blocks 4, the fingers are just clear of the shuttle m, the
stop rod is held up by the riders, the fingers hold the lever up, the latter holds up
the reed-holder d, and the shuttle can run freely into its box. When the shuttle has
entered the box and the latho moves forward into the position shown by figs. 5 and 9,
the riders pass off the blocks but the stoprod g is held in its previous position
by one of the fingers k resting against the shuttlo m and the reed is held fast as
before. If the shuttle has, however, missed entering the box, the fingers k can enter
the shuttle boxes, the springs turn the stop rod forward and by the fingers n' pull
the lever fand reedholder down, so that the reed is released and can swing back as
shewn on fig. 8. As the lathe moves forward the rider on the driving side of the
loom comes against a lever and turns it on its fulcrum, and a second lever
connected to the former presses the loom handles out of its holder and the handle
shifts the strap and stops the loom in the usual manner.
In order to hold the reedholder up after the shuttle has been picked and to relieve
at the same time the shuttle from the pressure of the springs n while it is picked,
I use a pair of curved arms arranged similarly as described in my specification
No. 2012 of 1889 for relieving the shuttle in fast reed motions. An arm o is fixed
to the underside of the lug n and an arm p to the underside of the crank-arm l, the
underside of p and upperside of o being curved to the same radius struck from the
centre of the pin 9 connecting the crank arm to the sword e. When the slay
approaches its foremost position with the shuttle in a shuttlebox, these arms come into
contact and hold up the stop rod, lifting the pressure of the springs n² off the shuttle,
and holding up the reedholder, so that the reed can beat up as hard as an ordinary
fast reed. While the lathe moves back, the arms p and o remain in contact sliding
upon one another as shewn in fig. 10, holding up the reedholder as shown in fig. 6,

page_text: and at the same time relieving the shuttle from pressure while it is picked. The
arms pando remain in contact till the ridor has again come upon the block .
By the arrangements described the reed is hold as firmly as in a fast rood loom
and can be used for heavy weaving, while the shuttle is at the same time relieved
from the pressure of the springs actuating the releasing motion, so that it is only
subject to the ordinary pressure of tho backswells.
I do not confine myself to the special arrangement shown for connecting the roed-
holder to a stop rod, but any other equivalent means for drawing down the reed-
holder when a stop rod is turned and holding the rood-holder up while the stop rod
remains quiescent may be used.
A modified arrangement described in my provisional specification has been omitted
from this complete specification as I found it to work unsatisfactorily.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what
1 claim is,
Firstly. In loose roed looms the arrangement of a vertically sliding reedholder (d)
for holding the roed bottom, in combination with mechanism for holding up said reed-
holder while the weaving proceeds correctly and lowering the same when the shuttle
fails to enter the shuttlebox, substantially as hereinbefore described.
Secondly, in loose reed looms the arrangement of a vertically sliding reedholder (d)
for holding the road hottom connected to a stoprod in such a manner that the reed-
holder is held up by the stop rod while the latter is quiescent and drawn down
when the stop rod is turned, in combination with mechanism for holding the stop
rod quiescent while the weaving proceeds correctly and turning the same when the
shuttle fails to enter the shuttlebox, substantially as heroinbefore described.
Thirdly. In combination with a vertically sliding reedholder (), brackets d³,
levers, and fingers a connecting the reedholder to a stoprod y which is held up
alternately by riders A and blocks A³, curved arms o and p, and fingers and shuttle in
while the weaving proceeds correctly and is turned forward by springs when the
shuttle fails to enter a shuttle box, substantially as hareinbefore described and
illustrated by the drawings.
Dated this 6th day of November 1880