Improvements in or appertaining to the Picking and Terry' Motions of Looms for Weaving.
Year: 1895

page_text: Date of Application, 18th May, 1895
Complete Specification Left, 17th Feb., 1896-Accepted, 21st Mar., 1896
PROVISIONAL SPECIFICATION.
"
Improvements in or appertaining to the Picking and Terry'
Motions of Looms for Weaving.
و"
We, RICHARD LONGDEN HATTERSLEY, of North Brook Works, Keighley, in
the County of York, Machine Maker, and SIMEON JACKSON, of the same address,
Manager, do hereby declare the nature of this invention to be as follows:-
It consists firstly of improvements in or appertaining to the picking motion of
looms for weaving, and relates to that class of picking motion employed in looms
constructed with rising and falling shuttle boxes, as set forth in Specification
No. 2954 of 1885.
The object of these improvements 1s, by a simple arrangement of parts herein-
after explained, to automatically indicate which shuttle shall be picked; to prevent
the picking of the shuttle from one side when there is a shuttle in the receiving
box at the opposite side; and also to prevent or stop the picking of the loom
when lagging back, or under similar conditions, such stoppage being effected by
the movement of the same lever or rod which the operative employs when preparing
for a reversion of the dobby mechanism, preparatory to lagging back.
In the class of picking motion above referred to there is employed a notched
plate secured to a cross shaft, which shaft is operated from the picking tappet
on the low shaft of the loom. The notched plate engages with a catch, which is
pivotted to a lever mounted loosely on the cross shaft. The lever is connected to
the picking stick by an arm and strap. This arrangement is common to both sides
of the loom, and, unless the catches pivotted to the levers are raised, the loom
picks at each half-revolution.
To effect our object, we regulate or control the engagement of the notched plates
with their respective pivotted catches from the shuttle box at the opposite side,
in such a way that the pressure of a shuttle in the receiving box raises the pivotted
catch of the picking motion at the opposite side, thus preventing a shuttle being
sent into a box already occupied by a shuttle.
For this purpose, we make use of the swell of the shuttle boxes, by mounting
additional loose fingers, one for each box, on the same rod on which the ordinary
stop rod fingers are fixed. Each of these said loose fingers plays on the swell of
its shuttle box, similarly to the finger of the ordinary stop rod mechanism, and
each is coupled by rods and levers to the pivotted catch of the opposite side
picking motion, so that, whenever there is a shuttle in a receiving box, the swell
of the box moves the finger in contact therewith, whereby the pivotted catch at
the opposite side is raised and moved so as to be out of contact with the notched
plate at the time when the same is operated by its picking tappet. By these means
two shuttles can never be sent into the same box, and, in the event of there being
shuttles in both boxes, that is in the box from which a shuttle should be forwarded
and in the receiving box, the picking motion at each side is rendered inoperative.
In order that the operative may prevent the loom picking, when lagging back
or undertaking similar operations, the lever or rod which prepares the dobby for
such operation, is also arranged to raise a rod which is coupled by levers to rods
which connect the pivotted catches to the additional stop fingers, so that, by the
movement of the rod or lever which prepares the dobby and other parts for lagging
back or for similar purposes, the pivotted catches are raised so that they will not

page_text: be actuated by the movement of the notched plates, whereby the picking motion is
rendered inoperative.
The second part of our invention consists of improvements in or appertaining to
the Terry' motion of looms for weaving looped towel fabrics and the like, the
object of such improvements being to regulate or control such motion from the
dobby of the loom and also to reduce the friction on the Terry' warp beam when
the oscillating rails are moved forward to form the loop or curl.
'
In order to effect our object, we couple the front and back oscillating rails
together by means of suitable levers and rod. On the upper shaft of the loom,
we fix a cam or tappet, above which is placed a horizontal lever coupled to the
back rail. This horizontal lever is connected to a vertical notched catch rod,
such rod engaging with a movable catch actuated from the dobby. At each
revolution of the cam the horizontal lever is slightly raised, so that the notch ot
the vertical rod is just eased out of contact with the movable catch, whereby
the latter can, if the pattern surface of the dobby mechanism so indicates, be
moved, when the horizontal lever falls and the back and front rails are moved
forward. As the cam raises the horizontal lever again, the rails are moved
backwards, and remain in that position until the pattern cylinder of the dobby
indicates for another movement.
In order to release or reduce the friction on the 'Terry' warp beam when the
rails move forward, we connect the friction chains passing round the beam carrying
such warp to one end of a coiled spring. The other end of this spring is connected
to a lever which rises and falls with the movement of the back rail, so that when
the rails are moved forward to form the loop or curl the tension on the Terry'
beam is reduced, but when the loom is on the plain weave there is the requisite
amount of friction on the beam.
Dated this 15th day of May 1895.
$
J. SIDNEY CRITCHLEY,
27 Kirkgate, Bradford, Agent for the Applicants.
Improvements in or appertaining to the Picking and "Terry"
Motions of Looms for Weaving.
We, RICHARD LONGDEN HATTERSLEY, of North Brook Works, Keighley, in the
County of York, Machine Maker, and SIMEON JACKSON, of the same address,
Manager, 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 :-
It consists, firstly, of improvements in or appertaining to the picking motion of
looms for weaving, and relates to that class of picking motion employed in looms
constructed with rising and falling shuttle boxes, as set forth in Specification
No. 2954 of 1885.
The object of these improvements is, by a simple arrangement of parts herein-
after explained, to automatically indicate from which side of the loom a shuttle
shall be picked; to prevent the picking of the shuttle from one side, when there is
a shuttle in the receiving box at the opposite side; and also to prevent or stop the
picking of the loom, when lagging back, or under similar conditions, such stoppage
being effected by the movement of the same lever or rod which the operative
employs, when preparing for a reversion of the dobby mechanism, preparatory to
lagging back.
In the class of picking motion above referred to, there is employed a notched
plate secured to a cross shaft, which shaft is operated from the picking tappet on

page_text: the low shaft of the loom. The notched plate engages with a catch, which is
pivotted to a lever mounted loosely on the cross shaft. The lever is connected to
the picking stick by an arm and strap. This arrangement is common to both sides
of the loom, and, unless the catches pivotted to the levers are raised, the loom picks
at each revolution.
To effect our object, we regulate or control the engagement of the notched plates
with their respective pivotted catches, from the shuttle box at the opposite side,
in such a way that the pressure of a shuttle in the receiving box raises the pivotted
catch of the picking motion at the opposite side, thus preventing a shuttle being
sent into a box already occupied by a shuttle.
In order to fully explain our invention, we append hereto sheets of drawings
marked with reference letters-
Fig. 1 represents the front view of the parts of a loom necessary to explain the
first portion of our invention;
Fig. 2 is a side view of same, and
Figs. 3 and 4 are details.
In the drawings, both sides of the loom are shown, but, as the mechanism in
connection with each of the shuttle boxes' picking motion is the same, it is necessary
to only describe the mechanism in connection with the shuttle boxes at one side and
the picking motion at the opposite side of the loom, the mechanism being simply
duplicated for the other side shuttle boxes and picking motion.
Referring to the drawings, a denotes the rising and falling shuttle boxes of a
loom, operated to rise and fall by any well-known method, and fitted with a swell,
which operates upon the stop rod finger 6 for effecting a stoppage of the loom,
in the event of a shuttle not being driven into a box. c is the picking tappet,
fixed on the low shaft of the loom, which revolves against a bowl fitted to a
lever d. This lever is attached to a cross shaft e, to which a notched plate fis
fixed. g is the picking lever mounted loosely on the shaft e, and h is the pivotted
catch with which the notched plate f engages. The lever g is coupled by a strap
to the picking stick or lever j. So far the mechanism described is old and well
understood.
Alongside the ordinary stop rod finger b, and mounted on the same centre, we
have an additional finger k, upon which the swell of the shuttle box acts. A short
lever is connected to the boss of this finger, to which a rod is coupled (see Fig. 3)
The rod is connected to a lever m, fixed to a rod n, extending across the loom,
and to the opposite end of this rod na lever o is secured. This lever acts upon a
lever p, which works on a stud, suitable brackets q being fixed to the frame of the
loom, for carrying these lower rods and lever. The pivotted catch is provided
with an adjustable pin, which rests upon the lever p, whereby the pivotted catch /
is raised or lowered with the movement of the said lever.
The operation of the mechanism is as follows. Presuming that the shuttle box,
at the shed level, on the right hand side of the loom, is occupied by a shuttle, the
swell of the shuttle box is thereby pressed outwards and bears against the finger h.
By means of the rod 1, lever m, rod n, and lever o, movement is transmitted to the
lever p, whereby the end in contact with the pin is raised. This effects the
raising of the pivotted catch clear of the notched plate, as shown in Fig. 4, so
that, even if the said plate is actuated by the picking cam, no movement of the
picking stick, at the right, or opposite side of the loom, takes place, and therefore
no shuttle can be picked from a shuttle box at either side of the loom, when there
is a shuttle in the receiving box at the opposite side of the loom, or, in other words,
it is impossible for two shuttles to be picked into one box, the picking motion at
each side of the loom being automatically regulated and controlled by the occupation,
or otherwise, of the receiving shuttle box at the opposite side.
In order that the operative may prevent the loom picking from either side, when
lagging back, or undertaking similar operations, we couple the rod s, which is
moved by the manual lever s¹, in order to prepare for a reversion of the dobby
mechanism, as is well understood-to the rods n and n¹, in such a way that the

page_text: movement of the rod s, by the said lever, also effects the movement or raising of
the pivotted catch h, the rod n¹ being the rod whereby the motion from the finger
of the left hand shuttle box is transmitted to the picking motion at the right side
of the loom. For this purpose, we fix, to each of the cross rods n and n', levers t
and t, one of which may be formed with the lever m before named. The levers t
and are placed one above the other, ard through each we pass a rod u, provided
with collars v. This rod u is coupled to the aforesaid rod 8, by means of levers
and rodu, so that, on the movement of the rod s, when preparing for a reversion
of the dobby mechanism, the said rod u is raised, and the said collars brought
into contact with the levers t and t¹, whereby the rods n are partially turned, and
the pivotted catches raised clear of the notched plates, and no picking of the
shuttles takes place when lagging back.
The second part of our invention consists of improvements in or appertaining to
the Terry motions of looms for weaving looped towel fabrics and the like, the
object of such improvements being to regulate such motion from the dobby of the
loom, and also to reduce the friction on the 'Terry' warp beam, when the oscillating
rails are moved forward to form the loop or curl.
This part of our invention is illustrated by Figs. 5 and 6 of the appended
drawings,
Fig. 5 showing in side elevation our improvements, with other parts of the loom
necessary to explain same, and
Fig. 6 being a front view of same.
A denotes the loom frame, B the taking-up roller, C the ordinary warp beam,
and D the Terry' warp beam. E and E are the front and back oscillating rails
respectively, usually employed in this class of loom, carried by levers, and working
with fulcrum rods 2 and 3 respectively, and which we couple together by means of
a red F, and levers F2 and F2. On the upper shaft of the loom, we fix a cam or
tappet G, which, at each revolution, comes into contact with a lever H fixed to the
fulcrum or centre on which the back rail oscillates. A vertical notched catch
rod J is attached to the opposite end of the lever H, such rod engaging with a
catch K. At each revolution of the cam G, the lever H is raised slightly,-
sufficiently however to lift the notch of the rod J free from the catch K, so that,
unless otherwise controlled, the lever H would fall and rise with the cam, and the
oscillating rails would move regularly with the other regular motions of the loom.
In order, therefore, to regulate the motion of the oscillating rails E and E' from
the dobby, it is necessary to regulate the engagement of the notch of the rod J
with the catch K from the dobby, either by moving the catch K, or giving freedom
of movement to the rod, when motion of the said rails is required. The latter
method being preferable, we attach to the rod J an arm J', the other end of which
is attached to one arm of a bell crank lever L, pivotted on a stud, fixed to the loom
frame. The other aim of the bell crank lever is connected, by a band, to the
lever M, which is operated according to the pattern surface of the dobby, as is
well understood. As the lever M rises, it tightens the band, so that, when in that
position, no movement of the oscillating rails E and E' can take place, as, by means
of the lever L, and arm J', the vertical rod J is kept perpendicular, with its
notch above the catch K. When, however, the lever M is lowered, as shown in
Fig. 6, and the notch is lifted clear of the catch K, by the movement of the cam G,
the weight of the lever L will draw the rod J back, and the notch will be out of
contact with the catch K. The lever H will then fall with the cam G, and
the rails E and E' are oscillated. The lever H is raised against the pressure of
the spring N, as otherwise its weight would not be sufficient to effect the movement
of the rails E and E'. As the movement of the lever L may take place before
the rod J has been moved to its highest point, a spring O is coiled around the
arm J', and compressed between a collar fixed onto the arm and the end of the lever L,
the end of the arm J being arranged also to slide on the end of the said lever L.
Thus, if the lever L is raised, when the rod J is in such a position that it cannot
be moved by the said lever onto the catch K, on account of the cam G not having

page_text: raised the lever H to the requisite level, the spring O is compressed, preventing
breakage of the parts.
In order to release or reduce the friction on the 'Terry' warp beam D, when the
rails E and E¹ move forward to form the loop or curl, we connect the friction
chain, passing round the said beam, to one end of a spring P, the other end of
which is connected to a lever R, secured to the fulcrum rod e, so that, when the
oscillating rails E and E¹ are moved forward, the lever R rises, and the friction on
the Terry warp beam is reduced, but, when the loom is on the plain weave, the
requisite amount of friction is again put onto the said beam.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is-
Firstly. In looms for weaving, the finger k, operated upon by the swell of the
shuttle boxes, and connected by suitable levers and rods to the pivotted catch h of
the picking motion at the opposite side of the loom, all substantially as shown and
described, and for the purpose herein set forth.
Secondly. In looms for weaving, having picking motions and shuttle boxes
arranged in accordance with Claim One, the rods and levers connecting the rod 8,
of the dobby reversing mechanism, to the rods n and n', all substantially as shown
and described, and for the purpose herein set forth.
Thirdly. In looms, for weaving towel or looped fabrics, having dobby mechanism,
a 'Terry' warp beam, and front and back rails E and E¹ coupled together, the
cam G, lever H, notched rod J', and catch K, with connection to the dobby, for
the purpose of regulating and controlling the movements of the said rails, all
substantially as shown and described.
Fourthly. In looms for weaving, arranged in accordance with Claim Three, the
lever R, and spring P, for releasing the friction on the 'Terry' warp beam D, on
the forward movement of the rails E and E¹.
Dated this 15th day of February 1896
J. SIDNEY CRITCHLEY,
27 Kirkgate, Bradford, Agent for the Applicants.