Improvements in Looms for Weaving.
Year: 1893

page_text: Date of Application, 22nd Feb., 1893.
Complete Specification Left, 22nd Nov., 1893-Accepted, 23rd Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in Looms for Weaving.
We, RICHARD LONGDEN HATTERSLEY, of North Brook Works, Keighley, in
he County of York, Machine Maker, SIMEON JACKSON, of the same place,
Manager, and JAMES ASQUITH, also of the same place, Foreman Mechanic, do
hereby declare the nature of this invention to be as follows:-
These improvements in looms for weaving relate to improvements in Hattersley's
well known dobby looms, and consist, firstly, of a positive and non positive dobby
arranged with cards for weaving one, two, or more patterns, secondly, of an arrange-
ment whereby the weft fork has a positive action, and the weft is relieved of the
weight of the fork, thirdly, of an arrangement for reversing the taking up motion
from dobby, fourthly, of an arrangement for giving rigidity to the picking tappet,
and fifthly, of an arrangement for applying a "dob cross beam to the above
named loom.
"""
Our improvements are effected by substituting for the ordinary peg cylinder
usually fitted to our positive or non positive dobby, a card cylinder, and mounting
in connection therewith in suitable carriers a horizontal needle which we attach to.
one extremity of an angle fecler, the other extremity of the said feeler being
attached to and operating the usual needles and draw catches for actuating the
healds. In order to change the pattern the card cylinder may be raised or lowered.
by cam or other suitable mechanism, or the horizontal needle may be similarly
operated upon.
Respecting the weft stop motion our improvements relate to that class of
mechanism wherein the weft fork is situated at or about the middle of the loom,
and consists of the employment of means whereby the weft fork is operated in a
positive manner both in its upward and downward movements, which we accom-
plish by attaching to the pivotted block on which the prongs of the fork are
secured, a projecting arm from both sides about horizontal, and about at right
angles to its axis. These projecting arms are operated by incline pieces having a
reciprocatory motion in a horizontal direction, the incline on one side being formed
to cause the block to oscillate in the direction for raising the prongs while the
incline on the other side oscillates it in the opposite direction, thereby causing the
said prongs to fall. The extremities of the inclines are formed so that the prongs
of the fork can only actuate the stop mechanism at one point, and thus owing to
the prongs being positively moved in both directions, the weight of same carried
by the weft is not increased by falling thereon.
In connection with the ordinary take up motion applied to our loom, we attach
a clutch box and gearing from any motion shaft coupled to dobby by means of
suitable lever stands and bearings, so that the horizontal shaft connected by
requisite gearing to the take up beam may be reversed from the dobby, and by
uncoupling the worm working on the horizontal shaft, which we accomplish
by withdrawing a spring actuated pin, which secures the loose worm to a boss
fixed to the shaft, the take up motion may be worked in either direction by hand.
In order to give rigidity to the picking tappet during time of picking, we pivot a
lever in any convenient position which falls by gravity into a groove of the tappet,
or against other parts or levers of the picking motion, thereby locking the picking
tappet during time of picking, the said locking lever being actuated when necessary
by means of a cam or tappet.
So that a "dob cross or similar class of beam, on which the worm wheel for
the let off mechanism is close to the end of the beam, may be applied to this class

page_text: of loom, in which the said worm wheel is fixed further from the end of the beam ;
we apply to such beams a special worm wheel with a hub which fits upon the
square end of such beams.
7
•
J. SIDNEY CRITCHLEY,
Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Looms for Weaving.
We, RICHARD LONGDEN HATTERSLEY, of North Brook Works, Keighley, in
the County of York, Machine Maker, SIMEON JACKSON, of the same place,
Manager, and JAMES ASQUITH, also of the same place, Foreman Mechanic do
hereby declare the nature of this invention and in what manuer the same is to
be performed; to be particularly described and ascertained in and by the following
statement:--
These improvements in looms for weaving, relate to improvements in Hattersley's
well known dobby loom, and consist firstly, of a positive or non-positive dobby
arranged with cards, for weaving one, two, or more patterns, secondly, of an
arrangement whereby the weft fork has a positive action, and the weft is relieved
of the weight of the fork, thirdly, of an arrangement for reversing taking-up
motion from the dobby, fourthly, of an arrangement for giving rigidity to the
picking tappet, and fifthly, of an arrangement for applying a "dob cross
"beam
to the above named loom.
In order to explain our invention, we append hereto sheets of drawings marked
with reference figures, in which,
Fig. 1, represents a front elevation of such portion of a positive or non-positive
dobby, regulated by means of cards, as are necessary to explain our invention.
Fig. 2, is a partial elevation of the opposite side, showing the method of com-
municating motion to the card cylinder.
Fig. 3, is a section showing the method of operating the feelers, and other parts
by means of the card cylinder.
Fig. 4, is an alternative arrangement for certain parts shown in Fig. 3, and
hereafter explained.
Fig. 5, is a front elevation of the weft fork mechanism, in which the fork is in a
position occupied when the weft. is absent,
Fig. 6, is a plan of same,
Fig. 7, is a similar view to Fig. 5 with the fork in a different position,
Fig. 8, is a sectional view of Fig. 5,
Fig. 9, a sectional view of Fig. 7.
Fig. 10, is a side elevation of the mechanism for reversing the take-up beam
from dobby,
Figs. 11 and 12, being details in connection with same.
Figs. 13 and 14, are a plan and front view respectively of the mechanism for
giving rigidity to the picking tappet, and
Figs. 15 and 16, show the arrangement of applying a
the before mentioned loom.
66 dob cross "let off beam to
In place of the ordinary peg cylinder usually adopted in Hattersley's well known
positive and non-positive dobby, we substitute therefor a cylinder 1, arranged for
cards, and mount said cylinder on a shaft 2, which is carried by two swinging
levers 3, pivotted on studs fixed to the dobby frame 4.
To the main shaft 5 of the loom, we fix an eccentric 6, (see Fig. 2) which is
coupled by a rod 7, to a lever 8, mounted on a stud attached to the dobby frame,
and by a bar 9 we couple the lever 8 to the swinging levers 3; so that a to and fro
motion is imparted to the card cylinder 1. This card cylinder 1, is provided with
a ratchet, or segment wheel, so that as it swings to and fro, it may be revolved a
L

page_text: certain distance, and thus present to the needles 10, a fresh pattern surface at each
partial revolution, which we effect by mounting on the same centre as the lever 8,
catches 11 and 12. The catches 11 and 12 operate in the following manner.
As the card cylinder 1, is swung backwards, the catch 11 takes hold of a tooth
of the ratchet or segment wheel, and thus revolves the cylinder one degree forward,
while the catch 12 operates similarly to revolve the cylinder backwards. Only one
of the catches 11 and 12, is in operation at one time, the catch 11 operating under
ordinary circumstances, but when required for any purpose to reverse the cylinder,
the catch 11 is put out of gear, and the catch 12 into gear with the segment wheel,
for which purpose, we attach to the catches 11 and 12, a lever 13 connected to a
rod 14, operated by the weaver.
The usual spring actuated pressure bar 15, is applied to the end of the card
cylinder 1, which may be prepared with flats or concave sides, which prevent the
cylinder being moved beyond the requisite distance, at each operation, thereby
bringing the flats of the cylinder, and the card surface exactly opposite the needles.
As the card cylinder 1, is swung forwards, its card surface brought in contact
with the needles 10, which are therefore operated upon according to the surface
presented. The needles 10, slide and rest in grates 16, and 17, and are attached to
feelers 18, which operate upon the vertical needles 19, thereby putting into and
out of operation, as will be well understood, catches 20 and 21, and other well known
parts for operating the healds in the well known manner.
In order to effect a change in the pattern, the horizontal needles are raised and
lowered by means of a tappet 22, worked from the bell crank lever 23, which said.
tappet actuates a lever 24 pivotted on a stud 25, the lever 24 being attached to the
grate 16 supporting the needles 10. In place of the tappet 22 we can use a
cylinder 22, (see Fig. 4) carrying lagging, by the pegs of which, said lever 24 can
be operated upon, and by using pegs of different lengths, the distance the needles 10
are raised or lowered is varied. By this arrangement, the cards of the cylinder 1
can be prepared with holes at different levels, that is, each segment of the card can
be prepared with holes one above the other, which operate upon the needles 10
according to the height the needles are lifted by the pegs on the cylinder 22ª,
thereby reducing the pattern surface required to produce a given design.
Respecting the weft stop mechanism, our improvements relate to that class of
mechanisin, wherein the weft fork is situated, at, or about the middle of the loom.
Referring to Figs. 5, 6, 7, 8, and 9 of the drawings which illustrate this improved
mechanism, wherein the weft fork 26 is situated at, or about the centre of the
slayboard or lay 27, a groove 28 being cut transversely in the said slayboard for the
reception of the prongs of the fork 26, when descending lower than the surface of
the warp.
The fork 26 consists of two, or more strips of metal secured edgeways to a
boss 29, which is attached to arms 30, at right angles to the prongs of the fork,
and by means of which the fork is pivotted on screw centre pins 31, 31. These
pins 31, are fixed to a plate 32 secured to the slayboard 27, this said plate 32 also
forming guides for a horizontal reciprocating motion plate 33, to which is fixed
incline pieces 34 and 35, acting on the weft fork in the following manner. The
boss 29, of the weft fork 26, is provided with projecting arms 36 and 36ª parallel
with the prongs of the fork, and at right angles to its axis. Upon these arms 36
and 36 the incline pieces 34 and 35 operate, as the sliding plate to which they
are attached slides to and fro in the guides of the plate 32.
The horizontal reciprocating motion is given to the plate 33 by means shown in
Fig. 74, which is a plan view of same, and consists of a rod 39 attached to the
plate 33 by a pin 40. This rod 39 is attached, at its other end, to the breast rail 10*
by means of a swivel block 40%, and is fitted with a collar 39.
In operation, as the lay 27 moves backwards, the rod 39 moves or is drawn through
the swivel block 40° until the collar 39 comes into contact with the swivel block 40°,
when further motion of the rod is arrested, and as the lay 27 continues its backward
movement the sliding plate 33 is drawn from the right to the left, and a spring 40°

page_text: attached to plate 33 and lay 27 is put into tension, whereby on the forward
movement of the lay, the plate 33 is drawn in the opposite direction..
As the plate 33 moves from right to left, see Fig. 5, the incline piece 34 will come
into contact with the arm 36, and so raise the fork 26, while on a reversion of the
motion of the plate 33, the said fork is lowered by the incline piece 35 acting on
the arm 36, whereby the fork is positively raised and lowered, and the weft is
relieved from the weight of the fork falling thereon. The weight of the fork only
rests on the weft at one point in the travel of the incline pieces 34 and 35, and at
that point, which is just prior to the extremity of travel in the direction for
depressing the fork, if the weft be absent, stoppage of the loom is effected.
By reference to Figs. 5, and 7, it will be noticed that the incline piece 34 comes
to an abrupt stop, and that it has immediately beyond, a level portion 34 which is
slightly higher than the lowest part of the incline 34, whereby unless the fork is
beld up by the weft, the arm 36, as the incline pieces travel from left to right by
the action of the spring 40°, rests at the bottom of the incline 34, and the vertical
portion formed by the angle of the level part 34ª, comes in contact with the arm 36,
as shown in Fig. 5, whereby further motion of the sliding plate 33 is arrested, and
stoppage of the loom effected, through the rod 37, attached to the sliding plate 33,
by a pin 38. The rod 37 has imparted to it the reciprocating motion of the
plate 33, and when its motion is arrested in the manner above described, a lever or
stop piece in connection therewith operates upon the "shipper" handle of the
loom, by an arrangement well understood.
1
In reference to the take-up motion applied to this class of loom, we apply to the
lower shaft of the loom or any other motion shaft, a bevel wheel 41, which engages
with two other bevel wheels 42 and 43 running loosely on a shaft 44, so that from
the shaft to which the bevel wheel 41 is attached, rotary motion in either direction
may be imparted to the shaft 44 by means of a clutch box 45, sliding on a key
fixed to said shaft, as one or the other of said bevel wheels 42 and 43. is put
into gear with the wheel 41, the clutch box 45 being coupled by means of a
lever 46, and rod 47 with the lever arrangement for preparing for a reversion of
the dobby.
On the opposite end of the shaft 44, we have a loose sleeve 48, to which we fix a
worm 49 and hand wheel 50. The shaft 44 passes beyond the sleeve 48 and hand
wheel 50, and onto the end of the shaft 44, we secure a collar 51, whereby, by
means of a detachable spring actuated pin 52 passing through said collar into a
hole prepared for same on the face of the hand wheel 50, the shalt 44 is coupled to
the sleeve 48 and worm 49. The worm 49 gears with a worm wheel 53 and by
means of the ordinary chain of wheels, motion is communicated to the beam.
wheel 54, and to the take-up beam 55. By this arrangement of bevel wheels 41, 42,
and 43 and clutch box 45 connected by lever 46 and rod 47 to the mechanism for
preparing for a reversion of the dobby, the shaft 44 will be prepared to rotate
backwards, by reason of the reverse action of the bevel wheels 42 and 43 on the
said shaft, whenever the dobby is prepared for reversion, so that when the weaver
desires to reverse the dobby and take up mechanisms for well known purposes, it is
only necessary, after preparing for such reversion, to set on the loom in the
ordinary manner for two or three revolutions as may be required.
By withdrawing the pin 52 which secures the collar 51 to wheel 50, the sleeve 48
and worm 49 revolve loose on the shaft 44, and the take up beam may be then
revolved by hand wheel 50, or the dobby operated backwards independently of the
take up beam.
In connection with our improvements for giving rigidity to the picking tappet,
these improvements relate to what are known as "sliding picking" cams or tappets.
Referring to Figs. 13 and 14 of the drawings, 56 indicates the low shaft of the
loom, and 57 the sliding tappet, with a groove in it, which put into and out of
gear by the lever 58, for operating the picking motion as is well understood. To
the cross rail 59, we pivot a lever 60, which drops by gravity into the groove by
which the picking tappet 57 is moved on the shaft 56 whenever the tappet is in

page_text: 1.
operation, whereby rigidity is given to the tappet, and any tendency to move on
the shaft 56 during the time of picking is obviated.
In order that the tappet 57, may be taken out of operation by the lever 58, the
locking lever 60 is moved on its centre by the cam 61, which is fixed to the
shaft 56, thus lifting the other end of the lever 60 out of the groove in
the tappet 57, previous to the operation of the lever 58, which can therefore move
the tappet as under ordinary circumstances.
"
.
In order that a "dob cross or similar class of let off beam, in which the
"worm" wheel of, the, let off mechanism is close to the end of the beam, may
be applied to this class of loom in which the said worm wheel is fixed further
from the end of the beam, we apply a special worm wheel in the following..
manner.
Referring to Figs. 15 and 16 of the drawings
Fig. 15 shows a longitudinal section of a
"dob cross
"
beam with the addition
i thereto of a worm wheel whereby such beam can be applied to "Hattersley's "
loom, and
Eig. 16 is a side view of same.
"
In
To the "dob cross "beam 62 there is applied a worm wheel 63, fitted close to.
the end of the beam for the purpose of gearing with the let off motion.
"Hattersley's loom, this worm wheel is fixed further from the end of the beam 62,
and in order that, the "dob cross beam may be applied to the last named loom we
have devised a worm wheel 64 having a hub 65 into which fits the square end of
the wheel 63, the position of the worm wheel 64 being such that the "dob cross
let off beam can be coupled to the let off mechanism of Hattersley's loom, without
any other alteration of the beam or of the let off mechanism.
وو
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 a loom dobby, a card cylinder 1 carried by oscillating arms 3,
operating on horizontal needles 10, the tappet 22 and lever 24 for raising or
lowering said needles, feelers 18 connected to needles 10, and vertical needles 19
for operating catches 20 and 21, and other parts for regulating the motions of
the healds according to the pattern surface of the cylinder 1 ; substantially as
described.
Secondly. In a loom dobby, a card cylinder 1 carried by oscillating arms 3,
operating on horizontal needles 10, an independently revolved supplementary peg
cylinder 22*, and lever 24 for raising or lowering said needles, feelers 18 connected
to needles 10, and vertical needles 19 for operating catches 20 and 21, and other
parts for regulating the motion of the healds according to the pattern surface of
the cylinder 1; substantially as described.
Thirdly. In a loom dobby, a card cylinder 1, for operating needles 10 as above
described, and carried by arms 3 oscillated from the shaft 5, by eccentric 6, rod 7,
lever 8, and bar 9, levers 11 and 12, and segment wheel for revolving said card
cylinder as it oscillates by the action of the levers 3; lever 13, and rod 14
reversing the levers 11 and 12, whereby the backward revolution of the card
cylinder may be effected; substantially as described.
Fourthly. In a loom dobby a card cylinder 1, carrying cards in which the
segments of such cards have, in addition to the ordinary horizontal holes, an upper
row or rows of holes for operating on horizontal needles 10, such needles being
raised or lowered to the required level by means of the peg surface of an inde-
pendent supplementary cylinder 22; substantially as described.
Fifthly. In a loom, the combination of a weft fork 26 pivotted on screw centre
pins 31, and having arms 36 and 36*, at right angles to its pivotal axis, and
reciprocating incline pieces 34 and 35 for raising and lowering said fork; sub-
stantially in the mauner as shown and described, and for the purpose herein set
forth.

page_text: Sixthly. In a loom, the combination of a weft fork 26 pivotted on screw centre
pins 31, and having arms 36 and 36" at right angles to its pivotal axis, incline
pieces 34 and 35, reciprocating plate 33, carrying said incline pieces, and rods 37
and 39; all arranged to operate substantially in the manner as shown and described,
and for the purpose herein set forth.
Seventhly. In a loom take up motion, the combination of a shaft 44 and worm 49,
bevel wheels 41, 42, and 43, and clutch box 45, such clutch box being connected by:
suitable levers and rods to the levers and rods whereby the weaver prepares
for a reversion of the dobby, so that, as the dobby is reversed by the ordinary
method of driving the loom, so 'is also the take-up beam reversed; substantially as
described.
A
Eighthly. In a loom take up motion, the combination of a shaft 44, worm-49,-
sleeve 48, hand wheel 50, collar 51, and pin 52; all' arranged to operate sub-
stantially in the manner as shown and described, and for the purpose herein set
forth.
Ninthly. In a loom picking motion, the combination of a lever 58, sliding
tappet 57, a lever 60, and cam 61; all arranged to operate substantially in the
mauner as shown and described and for the purpose herein set forth.
Tenthly. In a loom, the combination of a warp beam 62, and a worm wheel 64:
having a hub 65 prepared to fit onto the square end of a worm wheel 63; sub-"
stantially in the manner as shown and described and for the purpose herein set
forth.
Dated this 20th day of November 1893