Improvements in Machines for Drawing-in Warp-threads.
Year: 1891

page_text: COMPLETE SPECIFICATION.
Improvements in Machines for Drawing-in Warp-threads.
I, RICHMOND HAYWOOD INGERSOLL, residing at Number 15 Crescent Street,
in the City of Biddeford, County of York, and State of Maine, United States of
America, Savings Bank Treasurer, 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 :-
My invention consists in certain improvements, as hereinafter described, in
machines for drawing-in warp threads.
My improvements relate, first to mechanism for separating and holding the
heddle cords with their eyes in the path of the reciprocating needle; second, to
mechanism for selecting the warp threads and placing them one by one in the path
of the needle; and third, to various details embodied in the general construction
of the machine, the object of my invention being to simplify the construction of
the machine and render it more certain and reliable in its action.
In the accompanying drawings,
Figure 1 is a front elevation of a machine for drawing in warp threads
embodying my improvements, the warp threads being shown broken off above the
clamp.
Figure 2 is an elevation of one side of the machine.
Figure 3 is a rear elevation of the same.
Figure 4 is an elevation of the side of the machine opposite to that shown
in Fig. 2.
Figure 5 is a plan of the machine.
Figure 6 is a perspective diagram showing the manner in which the power is
transmitted from the driving shaft throughout the machine.
Figure 7 is an enlarged side elevation of the carriage as shown in Fig. 4, one
side of the box or casing upon which the warp drawing needle is mounted being
removed, to show the needle traversing mechanism, and a part of the bed A being
shown in section.
Figure 8 is a plan of the parts shown in Fig. 7.
Figure 9 is a section of the carriage on the line 9, 9, of Fig. 8.
Figure 10 is a plan of one of the beddle-cord separators showing the holdback
fingers, the spring pawl-shaped fingers being shown in dotted lines.
Figure 11 is a perspective view of one of the heddle-cord separating devices, the
hold back fingers being in the positions which they occupy when holding back both
series of heddle-cords.
Figure 12 is a perspective view of the two heddle-cord separating devices for
acting on the cords of the two heddles, the said cords being shown in the second,
fourth, and fifth positions.
Figure 13 is a perspective view of one of the heddle-separators with the heddle-
cord in the third position.
Figure 14 is a vertical transverse section of the rear ends of the platforms which
support the heddle-cord separating devices, taken on the line 14, 14, of Fig. 10.
Figure 15 is a perspective view of the warp thread selecting device, and the
standard or frame for supporting the same.
Figure 16 is an enlarged horizontal section on the line 16, 16, of Fig. 9.
Figure 17 is a plan of the warp thread selecting device, with both pairs of jaws
or nippers open, the warp drawing needle having just caught a thread, and being
in the act of pulling it through the eye of the selecting hook, and out from the
lower clamping device.
Figure 18 is a plan of the selecting device shown in Fig. 17, the rotary disk

page_text: :
which carries the selecting hook being shown in dotted lines, and the operating
gears being removed.
Figure 19 is.a vertical section on the line 19, 19, of Fig. 17.
Figure 20 is a vertical section on the line 20, 20, of Fig. 18.
Figure 21 is a perspective view of the reed-holding frame with its parts in position
to receive the reed.
Figure 22 is an enlarged section of the reed-holding frame showing, the reed in
place therein.
Figure 23 is a sectional detail of the locking device of the reed-holder.
Figure 24 is an enlarged horizontal section on the line 24, 24, of Fig. 9.
Figure 25 is a perspective view of a portion of the two heddles.
Figure 26 is an enlarged section of one of the heddle supporting rods, and the
heddle adjusting device connected therewith.
Figure 27 is a perspective view of one of the heddle hangers with part of its
supporting rod.
Figure 28 is a perspective view of a portion of the upper warp-thread clamping
device, its supporting rod, and mechanism for adjusting the said clamping device in
the direction of its length.
Figure 29 is a perspective view of a portion of the lower warp-thread clamping
device together with its supporting rod and adjusting mechanism.
Figure 30 is an enlarged section of a portion of the needle traversing mechanism
on the line 30, 30, of Fig. 7.
Figure 31 is a horizontal section on the line 31, 31, of Fig. 30.
Figure 32 is a detail representing a portion of one of the platforms upon which
the heddle-eye separating devices are mounted.
Figure 33 is a vertical section on the line 33, 33, of Fig. 10.
Figure 34 is a sectional detail of the warp thread selecting hook, and the nippers
which co-operate therewith.
Figure 35 is an enlarged vertical section on the line 35, 35, of Fig. 7.
Figure 36 is a detail in perspective to be hereafter referred to.
Figure 37 is a sectional detail illustrating the method of connecting one of the
warp-thread clamping bars with its supporting rod.
Figure 38 is a view of one of the hangers used for supporting the central portion
of the upper heddle-bar.
3
Figures 39 and 40 details illustrating the construction of the half nut and its 3
operating mechanism by which the feed-screw is connected with and disconnected
from the traversing carriage.
Figures 41, 42, and 43 details to be referred to.
"
The framework of the machine may be of any suitable construction, and in the
present instance consists of a bed A, which is supported on suitable legs, and is 4
provided with guides to which is adapted a traversing carriage or slide B, which
is fed from right to left by means of a feed-screw C, driven from the main
or driving shaft D of the machine through the medium of the gears b, c, d, shaft e,
bevel gear, bevel pinion g, shaft h, worm i, and worm-wheel k, as seen particularly
in Figs. 5 and 6. The shaft D is provided with the ordinary fast and loose pulleys, 4
as shown in Figs. 1, 3, 4, 5, and 6.
The carriage B has a half nut E, Figs. 4, 39, and. 40, which engages with the
screw shaft C; but this nut can be released from the control of the screw when it is
desired to stop the movement of the carriage, the nut being provided with a
slide 195 acted upon by a cam or eccentric 196, Figure 40, on the handle to cause 5
it to engage with or be released from the control of the screw. When the nut
is released from the screw, the carriage can be traversed by means of the hand-
wheel F, this wheel being connected through the medium of a train of gears with a
worm wheel m, which is in constant engagement with the feed screw C.
Between vertical end pieces or standards n, n, rising from the bed A are secured 5
four horizontal tubular rods p, upon which slide the hangers G, Figs. 1, 2, 3, 4, 5,
and 27; which support the heddles H, I, the upper and lower bars of which fit

page_text: within the rectangular eyes or yokes 9 at the ends of said hangers, the upper yokes
each having a sharp central projection r at the bottom, see Figure 27, which
slightly indents the heddle-bar, and prevents it from sliding within the yoke after
the latter has been slipped thereover. The upper and lower hangers G at the
the
right hand end of the machine are made adjustable longitudinally upon support-
ing rods p by means of screw shafts s, fitting within the tubular rods p, and each
provided with a hand wheel t at its outer end. Each of the shafts s engages with
a nut u, Fig. 26, which slides within the tubular rod p, and projects through a
longitudinal slot or keyway 50 therein, outside of which it has secured to it a
bar, fitting within a groove or guideway in the hanger. The hanger is coupled
to the bar by means of a set-screw w, provided with a suitable thumb piece and
adapted to engage with small holes in the bottom of the bar v, and when the
hangers are in this manner connected with the screw nuts u of the upper and lower
tubular rods p, they can be moved simultaneously or independently of each other
along the said rods, and the heddle frame can thus be adjusted in the direction of
its length with the greatest nicety. When it is desired to remove the heddle, the
set screws to are loosened to uncouple the hangers G from the bars v, when they
are free to be slid along the rods p until the eyes or yokes q have cleared the ends
of the heddle-bars. The hanger G used to support the central portion of the
upper heddle-bar, instead of being provided with an eye as shown in Fig. 27, is con- .
structed at its lower end to extend down on one side only of the said bar, and is
provided with an upwardly projecting spur 200 as seen in Fig. 38, which slightly
indents the heddle-bar and prevents it from slipping thereon, this spur being readily
introduced between the heddle-cords with which it in nowise interferes.
The stem of the upper heddle-frame supporting yoke q is threaded and passes up
into the hanger as seen in Fig. 27, which is provided with a recess, within which is
fitted a thumb-nut 51, which serves to raise and lower the yoke 9, whereby the
upper and lower bars of the heddle can be separated to take up the slack of the
heddle cords, or released when the said cords are to be slackened.
To the standards n, n, are bolted two brackets J, J, which form the end pieces
of the frame K, which supports the reed L. This frame, which is shown enlarged
in Figs. 21, 22, and 23, consists essentially of two horizontal rods 52, 53, upon the
lower one 53 of which is firmly secured a long socket-plate 54 of U-shape in cross
section, within which rests the lower bar of the reed L. A. similar socket plate 55
is hung by means of short sleeves 56 to the upper rod 52, so as to swing freely out-
ward therefrom, the upper socket-plate 55 being adapted to fit over the upper bar
of the reed when swung inward immediately over the rod 53. On the inner edge
of the socket-plate 55 are a series of fingers or projections 57, Figs. 2, 4, and 22,
which are adapted to catch over the top bar of the reed and guide it into the
socket plate 55 as the latter is swung inward by means of its handle 58, which
projects upward from the central sleeve 56. Within this handle is placed a spring-
actuated rod 59, the lower end of which enters a recess in the rod 52 as soon as
the upper socket has been rocked into a position to hold the reed, thus locking the
latter in place, a knob on the top of the spring-catch enabling it to be seized by
the fingers when it is to be lifted up to release the upper socket-plate, which can
then be swung outward to allow of the removal of the reed. This swinging move-
ment of the upper socket-plate or holder permits the top of the reed to be readily
swung out to disengage it from the reed-dent separator M.
a
This separator, which is driven through the medium of suitable gearing to be
hereinafter described, comprises simply a disk with overlapping ends forming
section of a screw thread. One of the flanges is thickened or expanded laterally
so that when it is inserted between two of the dents of the reed it will spread said
dents apart and facilitate the passage of the reciprocating needle, to be hereinafter
described, through the dents of the reed. The flange of the separator acts as a
screw thread, the forward end of the flange entering space after space between the
dents of the reed in succession, the dents being thus separated so as to be out of
the way of the needle,
"

page_text: On the driving shaft D is a bevel wheel a¹ arranged by means of a key or feather
and groove to slide on but turn with the said shaft. The bevel wheel a' gears
with another bevel wheel on a short vertical shaft c¹ on the carriage B, which
is connected through the medium of the bevel gears d', e', with a horizontal shaftƒ
on the carriage arranged at right angles to the shaft D, and connected at one
end through the medium of bevel gears g', ', i, k¹, l', m', and shafts n', ', with a
vertical shaft N, see Fig. 6, which latter drives the mechanism for selecting the
warp threads, which will be fully described hereafter. The opposite end of the
shaft is geared by means of bevel gears gl, r, s, to an inclined shaft t¹, which is
geared at its opposite end by means of bevel gears u', v', to a shaft to', having its
bearings in one side of a box or casing P, secured to the front of the carriage B,.
and adapted to contain the mechanism for operating the reciprocating warp draw-
ing needle Q, which will now be described.
The needle Q, which is a flat steel bar pointed at its front end and barbed as-
at 60, reciprocates in a tubular casing a on the upper side of the box P, and is
attached at its rear end to a carrier 62, which slides in a dovetail guideway
between parallel bars c² on the top of the box P, as seen in Figs. 7 and 30, the
needle as it is traversed sliding through a stationary guide d² at the inner end of
the tubular casing a². To the under side of the carrier 62 is pivoted a tubular
rode, which is adapted to slide within guides at the upper and lower ends of a
lever R, Figs. 7 and 30, pivoted to the bottom of the casing P at 61. The lever R
consists of two parallel bars, between which is fitted a slide g², to which is pivoted
the outer end of a crank arm 2, which is fastened to the end of the shaft w', which
latter is driven from the main shaft D, through the medium of the gears and shafts
above described and shown particularly in Fig. 6. The crank arm 3, as it rotates,
oscillates the lever R, causing the needle Q to advance and recede, the tube e³
sliding up and down within the guides f. Within the tubular rod e* is placed a
light spiral spring, Fig. 30, upon which rests a sliding rod having a transverse
pin, Figs. 30 and 31, which projects through slots 12 in the tube e and is brought
into contact with the upper guide as the tube e² slides upward, whereby the
spring is compressed just before the needle reaches the end of its forward stroke,
which renders the operation of the parts smooth and easy, and avoids any sudden
shock which might be caused by the sudden reversing of the direction of motion of
the parts. On the backward movement of the needle, the upper end of the rod e³
where it is pivoted to the carrier is brought up against a buffer m³ at the upper
end of a spring n³, as seen in Fig. 7, thus still further lessening any shock
which might occur at the termination of the backward stroke of the needle
carrier.
I will now describe the mechanism for separating the heddle-cords, and holding
them with their eyes in the path of the reciprocating needle Q in such manner
that the passage of the latter through the heddle-eyes will be insured, reference
being had particularly to Figs. 7, 8, 9, 10, 11, 12, 13, 14, 31, 32, 33.
The needle passes first through the reed L, then through an eye of the heddle H,
then between two eyes of the heddle I, and after receiving a warp thread p³, draws
it between the eyes of the heddle I through the eye of the heddle H and through
the reed; but on the next stroke, the needle passes between the two eyes of the
heddle H, and through an eye of the heddle I, and, receiving another warp
thread, draws it through the eye of the heddle I, between the eyes of the
heddle H, through the reed; and-so on until all the warp_threads have been drawn
through the heddle-eyes and the reed. The number of threads which pass through
each space between the dents of the reed corresponds to the number of heddles
being threaded in the machine.
The eyes of each heddle are selected and separated one by one in proper order,
and held in position for the passage of the hooked needle Q in the following
manner, and as the eye-separating mechanism for the heddle H is precisely like
that for the heddle I, the two mechanisms being so connected with the power that
the heddles are acted upon alternately, I will describe only the device for acting

page_text: wim apply сучану
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heddle.
S, SI, are two plates or platforms which are supported on posts or standards T
rising from the carriage B, and between these two plates is a narrow space or
channel q, through which the heddle cords pass as the carriage with the plates S, S¹,
is traversed from one end of the machine to the other, this space q being narrowed
down toward the rear end as seen in Fig. 10, to a width just sufficient to allow the
passage of one of the eyes of the heddle-cords when said eye is turned edgewise
so as to face towards the front of the inachine. At the rear end of each of the
plates S, S¹, are two small projecting plates ³, s, forming jaws flush respectively
with its upper and lower surfaces, the space between the upper and lower pairs
of plates or jaws being just sufficient to hold a heddle-eye with its lower and upper
knots fitting respectively close up under the plates 2, and down the
upon upper
plates, as seen in Fig. 32, the distance between the two jaws of a pair being
sufficient to allow of the passage of a heddle-eye turned edgewise so as to present
a single thickness of the cord only.
The thickness of the platforins S, S', corresponds to the length of the heddle-
eye, and in the narrow part of the channel q' on each side are formed on the edges
of said platforms two inclines or shoulders 62, see Fig. 32, against which the upper
or lower knot of the heddle-eye will strike if the said eye should happen to be a
little too high or too low, by which means the eye is carried downward or upward
to the proper level to insure its upper and lower knots passing respectively over
onto the upper surfaces of the plates 2, 3, and just under the lower surfaces of the
plates, as seen dotted in Fig. 32, with the face of the eye presented toward
the front of the machine, and directly in the path of the reciprocating needle Q,
which as it advances is held closely up against the vertical end faces 63 of the
platforms S. S. At the corner of the platform S which is nearest to the front
of the machine is a guide U, Figs. 7, 8, and 12, through which the needle passes,
said guide being provided with a downwardly-extending and inwardly-inclined
flange t2, which serves to catch the point of the needle in case it should have
become accidentally sprung outward, and carry it snugly against the end face of
the platform; and to still further ensure the needle passing through the heddle-
eye held between the jaws, s, the upper and lower jaws which lie nearest to
the front of the machine are chamfered off, the upper jaw inward as seen at 65,
and the lower jaw upward as seen at 64, Figs. 11 and 12, whereby the point of
the needle is caused to lie closely against the end face of the platform at this
point, and is kept exactly in line with the heddle-eye through which it is about
to pass.
W, W', are two holdback fingers which are secured to the upper ends of
two shafts u, v, and lie one immediately over the other, the finger W over-
lapping the finger W' as shown. These fingers have a swinging movement in a
horizontal plane and serve to alternately hold back and release the front and back
rows of cords of the heddle. Each of the shafts of the holdback fingers is
provided at its lower end with a small gear w³, Fig. 24, which meshes with a
rack a on a slide, which is actuated in one direction by a cam 66 on a
horizontal shaft c³, the shafts of the hold back fingers being moved in the opposite
direction by spiral springs surrounding the same, each of said springs being
connected at one end with its shaft by a clutch e³, whereby it can be tightened up
when required, the upper end of the spring being inserted within a hole in the
under side of the plate S or S¹. This clutch e', Figs. 11 and 43, which is of well-
known construction, consists of two toothed collars adapted to engage with each
other, one of said collars being immovably secured by a set-screw or otherwise to
the vertical shaft of the hold back finger, while the other or upper collar has
secured to it the end of the spring, and is adapted when disengaged from the
lower collar, to be rotated upon the shaft of the holdback finger to wind up and
tighten the said spring, after which it is again engaged with the lower collar to
maintain the spring at the desired tension, The short horizontal shaft c³ has

page_text: secured to it a gear f³, which meshes with a gear g³, on a horizontal shaft A¹,
Figs. 6, 7, 8, and 9, which carries at one end a bevel gear h³, which meshes with a
bevel gear
3, on a short vertical shaft 3, the latter carrying at its lower end a
bevel gear, which meshes with a bevel gear m³, arranged by means of a key or
feather and groove to slide upon but to turn with the shaft é as the carriage B is
traversed as shown in Fig. 6.
The holdback fingers W, W1, which operate alternately, enter between the front
and back rows of cords of the heddle, and while one finger is holding back the
cords on one side, the other finger is thrown back by its spring, as seen in
Figs. 12 and 13, thus releasing the cords on that side of the heddle, when the cords
of the first eye will separate from the rest, the remaining cords on that side being
prevented from following by reason of the crossing of the front and back cords
beneath the eyes....
It will be observed that the holdback fingers as they are swung inward-lap each
other, which enables them to be made of such length that their rounded hooked-
shaped outer ends will extend beyond a line or plane passing centrally between
the front and back rows of heddle-cords, thus increasing their range of motion,
which, together with the width and shape of the outer ends or points of the fingers,
cause the front and back rows of cords to be so widely separated thereby as scen
in Fig. 11 which represents them in the first position, that while one finger is
holding back the cords on one side, the other finger as it swings inward, which
takes place before the other finger is released, cannot by any possibility catch any
of the cords on the opposite side of the heddle. This arrangement of the fingers
in planes one above the other so that they may lap or swing past each other as
described, I consider a novel and important feature of my invention, as it enables
these fingers to operate to the greatest possible advantage without any liability of
improperly catching or disarranging the heddle-cords.
At the rear end of each of the platforms S, S', is formed a slot n', and in these
two slots are fitted two slides p³, 13, one on each side of the channel 3, the two
slides being connected together so as to move simultaneously by means of a long
vertical U-shaped yoke B', as seen in Figs. 7, 11, 12, 13, and 14, which passes
around under the heddle so as not to interfere therewith as the platforms S, S¹,
are traversed with the carriage B. The slides p, q, thus coupled together are
reciprocated in their slots n' by a lever connected with a lug or plate attached
to the slide p and pivoted at its lower end; said lever having an arm 67,
Figs. 8 and 9, at the outer end of which is an anti-friction roll, which fits within a
cam groove in the periphery of a disk on the shaft A'. Upon the upper side
of the slide p³, which is nearest the front of the machine, is secured a wedge-shaped
plate or block 68, against the inner inclined side of which rests a pawl-shaped
finger 69, pivoted to the slide q³ of the platform S. Against the outside of this
finger 69 a short distance from its point, rests the point of a pawl-shaped finger 70,
pivoted to the slide p³ at the rear of the wedge-shaped block 68, and having a
spring 71, which keeps it in contact with the finger 69, and presses the latter
against the inclined side of the block 68. Outside the fingers 69 and 70 is another
curved pawl-shaped finger 72, which is pivoted to slide q³, and is acted upon by
a spring 73, which presses its point against the finger 70, and its inner side at 74
against the finger 69. This mechanism is exactly duplicated on the under side of
the platforms S, S', the wedge-shaped block and pawl-shaped fingers secured to
the under side of the slides p, q, being arranged directly in line with those on the
upper side of the said slides.
In each of the platforms S. S¹, is formed a diagonal guide slot 75, Figs. 12, 13,
and 33, in which is fitted a slide 76, Fig. 33, to which is secured a plate 77,
carrying at its outer upwardly bent end a small brush 78. To the plate 77 is
pivoted a link 79, to which is pivoted a crank arm 80 on the vertical shaft of the
heddle holdback finger, and as the latter is swung outward to release the heddle-
cords, the brush is caused to advance, and, coming into contact with the heddle-
cords just released, brushes or switches them over into place in case they should

page_text: stick or have become accidentally obstructed in any way so as not to move freely
into place when released by the holdback finger.
The operation of the above described mechanism is as follows: and as the action
of the fingers 69, 70, and 72 on the heddle-cords is the same on the lower as on the
upper side of the platforms S, S', I will describe the action of the upper fingers 69,
70, and 72, which will apply to those on the under side as well.
The parts being in the position seen in Fig. 11, which shows the heddle-cords in
the first position, and the line of back heddle-cords being held out of the way by
the finger W', the finger W is thrown back by its spring into the position seen in
Figs. 12 and 13. This releases the front row of heddle-cords when the cords of the
foremost eye of this row will separate from the rest and pass into contact with the
front side of the finger 69, as shown at the right hand side of Fig 12, which I term
the second position; the brush 78 which advances at this moment serving to switch
or brush the cords over into place in case they should stick or from any other cause
fail to move.
A flattened thin-edged bar t, Figs. 11, 12, 13, and 25 is introduced
longitudinally between the cords of the heddles and is suspended in any suitable
manner, for instance by means of wires, at such a height as to bring it directly
under the eyes of the heddle at a short distance therefrom, the friction of the
heddle-cords against this bar, in connection with the crossing of the front and rear
cords causing the cords of the foremost eye in the line to be separated from the
following ones on their release by the holdback finger, and preventing the cords of
two or more eyes from passing at the same time inside the point of the block 68.
As soon as the heddle-cords have passed into the second position, in contact with
the front side of the finger 69, the slides p³, 9³, commence to move in the direction
of the arrow 45, when the cords will pass the point of the finger 69, and enter the
space 81, assuming what I term the third position, as shown in Fig. 13. The next
movement of the slides in the contrary direction will cause the cords to pass
between the point of the finger 70 and the finger 69 into the space 82, and between
the fingers 69 and 72 by which they are held firmly at the point 74, the heddle-
cords having been by this movement advanced into a position to bring the heddle-
eye squarely between the jaws r, s, as shown at the left hand side of Fig. 12,
which term the fourth position, where they will remain until the needle
passed through the eye, received a warp thread, and has drawn said thread back
through said eye. The next movement of the slides p³, 78, in the direction of the
arrow 45 causes the threaded heddle-eye to pass out between the point of the
finger 72 and the finger 70, and on the return movement of the slides, the threaded
eye is pushed out from between the jaws and out of the path of the needle by the
pressure of the curved outer side of the finger 72 into the fifth and last position, as
shown at the right hand side of Fig. 12.
has
When the machine is arranged for threading two heddles, as in the present instance,
the eyes of the rear heddles are all held out of the path of the needle while the
single eye of the front heddle is being threaded, and the eyes of the front heddle are
then held ont of the way while an eye of the rear heddle is being threaded; these
alternate actions being continued until all the eyes of both heddles are threaded.
As soon as an eye of the front row or series of cords of the heddle H has been
carried into position between the jaws 3, 82, and while the needle is passing through
said eye, the front row or series of cords of the other heddle is released by the
outward movement of its hold back finger W, and the cords of the foremost eye of
this series are carried between the inclined block 68 and the finger 69 of the
separating device which acts upon this heddle, and by the time that the eye of
the heddle H has been threaded and pushed out of the jaws, s², the eye of
the heddle I has arrived into position between the jaws 3, 3, of its separating
device ready for the passage of the needle therethrough, and while the eye of the
heddle I is being threaded, the separating device of the heddle H remains
stationary with both holdback fingers W, W, carried inward to hold back both
series of cords, and as soon as the thread has been drawn through the eye of the .
heddle I, and said eye has been pushed out from between the jaws, s³, as seen in

page_text: Fig. 12, and while the needle is being drawn back to carry the said thread through
the reed, the holdback finger W₁ of the heddle H releases the back series of cords
of said heddle, the cords of the foremost eye of which are then carried by the
action of the pawl-shaped fingers between the jaws r², s³, as previously described,
and while this is taking place the separating device of the heddle I remains
stationary with its holdback fingers W, W', holding back both series of cords of
said heddle I, in the position shown in Fig. 11, and in this manner the two
separating devices operate alternately, a front eye of the heddle H being first acted
upon and threaded, then a front eye of the heddle I, then a back eye of the
heddle H, and finally a back eye of the heddle I, these operations being repeated
until the eyes of all the cords have been threaded.
Where three, four, or more heddles are to be threaded in one machine, the eyes
of all but one heddle must be held back during the threading of the eye of that
heddle, as will be readily understood, but this will require merely a duplication of
the separating devices and a proper timing of the mechanism which operates the
same.
The reed-dent separator M is driven from the shaft A¹ Figs. 4, 6, 7, and 8,
which carries at one end a segment gear u³, Figs. 7, 8, and 36, engaging with a
pinion on a short horizontal shaft 83 so as to impart thereto an intermittent
movement and lock it between such movements. This locking is effected by a
plate 205 secured to the end of the shaft 83, and having its lower edge curved to
correspond to the shape of the flange 206 of the segment gear u³ against which it
lies closely as seen in Figs. 36 and 41, thus locking the shaft 83 and preventing it
from rotating until a space or opening 207, Figs. 41 and 42 is brought by the
rotation of the gear us around under the plate 205 as seen in Fig. 41, at which
time the teeth of the segment gear u³ commence to engage with the pinion w³. The
plate 205 is now free to rotate in the notch or space 207, and during the time that
the teeth of the gear u³ are acting on the pinion to³, the said plate 205 makes an
entire revolution, whereby its lower curved end is again brought down upon the
flange 206 to lock the shaft 83 and prevent it from rotating except when the
pinion is being acted upon by the teeth of the segment gear u³.
The opposite end of the shaft 83 carries a bevel wheel 84, which gears into a
bevel wheel 85 on a horizontal shaft 86, which passes through the box P and
carries at its opposite end a bevel wheel 87, Figs. 1 and 6, which gears into a bevel
wheel 88 on a vertical shaft 89, carrying at its upper end a bevel wheel 90 which
gears into a bevel wheel 91 on a short horizontal shaft 92 supported in a long
bearing on a bracket x, Fig. 8, said shaft carrying at its opposite end a bevel
wheel 93, which gears into a bevel wheel 94 on a shaft 95 to the outer end of which
is secured the reed-separator M, which is thus operated intermittingly at the proper
times to separate the dents of the reed, the said separator M making a single
revolution immediately after the needle has drawn the warp-threads through a
single space between the dents of the reed.
The mechanism by which the warp-threads p2 are successively selected and
carried one at a time against the barbed needle Q into a position to insure their
being caught by its hook 60 as the needle is retracted so as to be drawn thereby
through the eye of the heddle and between the dents of the reed, is shown
particularly in Figs. 6, 7, 8, 9, 15, 16, 17, 18, 19, 20, 34, and 35, and is driven from
the vertical shaft N, which receives its motion from the main shaft D through the
medium of the gears and shafts previously described.
The warp threads p² are wound on the warp beam C' journaled in bearings on a
suitable stand on the floor, as seen in Figs. 2, 4, and 5, and said warp threads pass
up over a long guide-bar 96 provided with lugs 160 sliding on a tubular rod 100
secured at its opposite ends to brackets on the standards n, n; said warp threads
being clamped at the top and bottom. The top clamp in this case consists of the
long bar 96, Fig. 28, over which is pressed an inverted U or trough-shaped spring
metal clamp 98, the warp threads being confined between the bar 96 and the spring
clamp 98. The lower clamping device consists of a long stationary flat bar 99,

page_text: Figs. 15 and 29, and a removable clamping bar a', the bar 99 being provided also
with lugs 160, sliding on another tubular rod 100, also secured at its opposite ends
to brackets on the standards n, n. The removable clamping bar a is held tightly
in place against the face of the flat bar 99 by removable spring metal clamps 64
applied to the ends of the clamping bars as seen in Figs. 3 and 29, the warp threads
being confined between the two bars. The inner side of the bar 99, which presses
against the warp threads is covered with felt, cloth, or equivalent material to allow
each thread to be easily and independently withdrawn by the needle Q without
disturbing any of the adjacent threads. The upper and lower clamping bars 96
and 99 are each made adjustable longitudinally on its tubular supporting rod 100
by means of a screw shaft 155 fitting within said tubular rod and provided with a
hand wheel 156, Figs. 3, 4, and 5, at one end, the rods 100 being similar to the
rods
p which support the heddle hangers G.
The screw shaft 155 engages with a nut 157, which slides within the tubular
rod 100, and projects through a longitudinal slot or keyway 158 therein, outside of
which it is secured to the clamping bar by a screw 159 as seen in Fig. 37, the con-
nection between the nut and clamping bar being strengthened by the tubular
lug 160, which is secured to said bar and is adapted to slide upon the tubular
supporting rod, these two clamping devices being thus made adjustable longi-
tudinally, whereby provision is made for the nice adjustment of the warp threads to
accord with the reed and heddle.
D' is a standard or frame which is bolted to the carriage B and carries at its
upper end a table E, Figs. 7, 8, 15, 17, 18, 19, 20, and 35, upon which is mounted
a rotary disk G' which carries the rotating sliding selecting hook c³, by means of
which the warp-thread is carried against the reciprocating needle Q in a manner
to be particularly described hereafter. To the upper side of the disk G' is secured
a gear 102, which is driven through the medium of two intermediate gears 103, 104,
loose upon their studs, by a gear 105, fast on the upper end of the vertical shaft N
previously described.
The table E' is provided with two extensions 106 and 107, Figs. 2, 9, 15, and 20,
forming between them a narrow slot d', and on these extensions are placed two
adjustable plates 108 and 109, upon which are secured two narrow plates 110
and 111, the said plates forming a pair of nippers K¹ with four clamping edges or
jawe, the upper ones 110, 111, being located just above the level of the selecting
hook c, while the lower ones 108, 109, are located just below the level of the said
hook which, as it is rotated, passes horizontally between the inner ends of said upper
and lower jaws so as to catch that portion of the warp thread which is held between
said upper and lower jaws, the inner ends of which overlap and underlap the said
selecting hook, as seen in Fig. 34. The plate 109 carrying the narrow plate 111
is made adjustable by means of two screws 112, and is normally adjusted by means
of the said screws at such distance from the edge of the plate 108 as to leave a
space just sufficient to hold the warp threads parallel or side by side in a single
row, and prevent them from riding over each other as the carriage B is fed
forward. The plate 108, which forms the movable portion of the nippers K', is
connected to a slide 113 moving in a guideway in the table E¹, and to this slide is
pivoted a lever 114 also pivoted at its opposite end to the table E', a projection 115
of this lever 114 being acted upon by a cam-disk 116 on the shaft N, whereby the
jaws 108 and 110 are moved toward jaws 109 and 111 at the proper time to clamp
and firmly hold the warp threads at points just above and just below the level of
the selecting hook c', the slide 113 with the movable jaws being retracted by a
spring 117, seen dotted in Fig. 18, as soon as the notch in the disk 116 has passed
the point of the projection on the lever 114. Upon a post 118 rising from the
table E and passing through a slot in the plate 109 is pivoted by means of a
clamping screw 119, an arm 120, from which projects a horizontal guide-rod e*,
against which the foremost warp-thread rests, and along which it is drawn by the
selecting hook cat an angle tightly against the under side of the front end of the
reciprocating needle, which is at that time in the position shown in Figs. 15 and 18.
B

page_text: the tension of the thread and the angle at which it is held insuring its entrance
into the hook 60 of the needle Q as the latter is retracted.
Beneath the nippers K' are a pair of horizontal nippers H', which have a vertical
movement toward and from the nippers K', and are alternately opened and closed
so as to take up any slack in the warp threads as they are presented to the selecting
mechanism. The jaws 121 and 122 of these nippers Hare both mounted on a
slide 123 moving in vertical guideways on a side extension of the standard D', said
jaws being pivoted at 124, 125, and connected by a link 126, Fig. 16, whereby the
motion of one is communicated to the other to cause them to move simultaneously
in opposite directions. The slide 123 is moved by a cam 127 on a short shaft 128
to which is secured a bevel wheel 129, which meshes with a bevel wheel 130 on
the shaft N, see Figs. 16 and 35, said cam acting on an anti-friction roll at the
lower end of an arm 131, projecting down from the slide 123, a spring 132 serving
to retract the slide after it has been raised by the cam 127.
The nippers H¹ are opened against the influence of a spring 133, Fig. 16, by a
wing or plate 134, projecting from a vertical rod 135 passing up between the
nippers and supported at its opposite ends in suitable bearings 136, Figs. 7, 9,
and 15. This rod 135 is partially rotated on its axis to cause the wing 134 to act
upon and open the nippers by a cam 137 on the short shaft 128, which is brought
in contact with a pin 138 on the shaft 135, and as soon as this pin drops off the
projection of the cam, the rod is returned to its normal position by a spiral
spring 139 which encircles said rod. These nippers stretch and take up any slack
in the warp threads before the latter are presented to the selecting device. The
novel feature of this portion of my invention consists in the co-operation with the
lower nippers H¹, of the upper pair of nippers K' with their four clamping jaws
which, after the lower nippers H₁ have drawn down and stretched the warp
threads, are brought together for the purpose of clamping the warp-threads just
above and just below the level of the selecting hook c, which hook passes, as
before stated, between the upper and lower pairs of clamping jaws of said nippers,
and by thus causing the warp-threads to be clamped between two pairs of jaws
placed a short distance apart, one above and the other below the level of the
warp-thread selecting-hook, the liability of the warp-threads getting out of a
single line is avoided, and said threads are held firmly in position while being
caught by said selecting-hook.
The disk G¹ is made in two pieces held together by screws, the under and
smaller portion of which fits and rotates within a circular recess in the table E',
the disk rotating upon a stud 140, the head of which rests upon the gear 102, which
is securely fastened to the upper surface of the disk. Within a shallow groove in
the lower portion of the disk G' is fitted a slide 141, which is provided at one end
with a hook-shaped portion forming the warp-thread selecting hook c, within which
is formed an eye or aperture 142 open on its outer side, said opening being closed
by a light spring 143, the free end of which extends beyond the eye and lies
against the edge of the hook c¹ in such a manner as to permit the entrance of a
single thread only at a time into the eye 142 as the hook e is carried by the
rotation of the disk G' past the line of warp-threads clamped between the upper
and lower jaws 108, 109, 110, 111 of the upper nippers K. The selecting hook c
is forced out beyond the periphery of the disk G' by a light flat spring 144, and at
the end of the slide opposite to the hook c' is a pin 145, which projects up through
a slot in the disk, and during a portion of the rotation of said disk, rides over the
edge of a cam-plate 146, by which means the plate 141 is retracted against the
influence of the spring 144. When however the angular point of the hook c
reaches the warp threads, the pin 145 rides down an incline 147 at the end of the
cam plate 146, which permits the slide 141 to be forced outward by the spring 144,
causing the inclined side 148 of the hook c to bear against the foremost warp-
thread, producing a tension thereon, which thus insures the thread passing into the
eye of the said selecting hook. The single thread thus selected and separated from
the series is then carried by the selecting-hook along the guide-rod e and against

page_text: the lower edge of the needle Q, which has by this time completed its outward
movement, and into a position, as before described, to insure its being caught by
the hook or barb 60 of the needle Q as seen in Figs. 15 and 17, which as it is
retracted carries the thread back through the eye of the heddle and through
the reed.
Just before the reciprocating needle Q commences to draw back the warp-
thread, both the upper and lower pairs of nippers are opened to release the warp-
threads and allow the one within the hook or barb of the needle Q to be drawn
freely back by said needle without any obstruction.
After the thread has been drawn through the reed, it is caught and drawn out
from the hook of the needle by a rotating arm or finger g, which is secured to a
shaft at the opposite end of which is a bevel wheel, which meshes with a bevel
wheel on a vertical shaft , having at its lower end a bevel wheel m* which
meshes with a bevel wheel on a horizontal shaft p' passing through the box P,
and carrying at its opposite end the gear r¹ previously referred to, which meshes
with the gear g¹ on the shaft f', the latter being driven from the main shaft D as
previously described, through the medium of the gears and shafts referred to in the
first part of the Specification, and shown particularly in Fig. 6. This finger g*,
which makes one complete revolution while the needle is being advanced and
retracted, is caused to perform its work of drawing the thread out of the eye of the
needle and casting it to one side when the point of the latter has been drawn
back out of the path of the finger so that the finger will clear the needle as it
rotates.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a warp-drawing machine, the combination of the heddle-support, the
traversing carriage, the platforms supported by and moving with the traversing
carriage and having a space or channel between them for the passage of the
heddle cords, the slides moving in ways upon opposite sides of said space or channel
and coupled together to move simultaneously as described, the heddle-eye
separating fingers and wedge-shaped block mounted on said slides, reciprocating
devices for said eye-separating fingers and block, and the eye-holding jaws pro-
jecting from said platforms at the end of the space or channel between the same,
substantially as described.
2. In a warp-drawing machine, the combination, with the heddle-support or
holder, the traversing carriage and a reciprocating warp drawing needle mounted
upon said traversing carriage, of two platforms connected to and moving with the
carriage, and having a space or channel between them for the passage of the
heddle-cords, jaws projecting from said platforms at the end of said space for
holding the heddle-eye in the path of the needle, the slides with their spring
actuated fingers and wedge-shaped block moving in guides on opposite sides of said
space or channel and coupled together as described, and means for reciprocating
said slides, whereby the heddle eye is carried into the jaws and held in the path of
the drawing needle, substantially as described.
3. In a warp-drawing machine, the combination, with the heddle-support or
holder, and the two platforms having a space between them for the passage of the
heddle-cords, and provided at their ends with the eye-holding jaws, of the slides
coupled together by a yoke adapted to extend under the heddle, said slides moving
in slots on opposite sides of said space or channel and carrying on each of their
upper and lower sides a wedge-shaped block and a series of spring actuated fingers
co-operating therewith, and means for reciprocating the slides whereby the heddle-
eye is carried into the holding jaws, held therein during the passage of the needle,
and forced out therefrom after being threaded, substantially as set forth.
4. In a warp-drawing machine, the combination, with the platforms S, S', and
the warp drawing needle, of the guide U with its flange t, and the jaws r³ ³, with

page_text: their inward and upward inclines 64 and 65, whereby the point of the drawing-
needle is kept closely against the ends of the platforms and in line with the eye of
the heddle within the jaws r³, 82, substantially as set forth.
5. In a warp-drawing machine, the combination, with the two platforms and their
reciprocating slides carrying the eye-separating device, of the jaws r³, 82, located at
the end of the space between said platforms and adapted to fit respectively under
the upper knot and over the lower knot of the heddle-eye, and to hold said eye
with its face or broader side presented toward the front of the machine, substantially
as set forth.
6. In a warp drawing machine, the platforms S, S¹, having jaws ³, s², provided
at their edges in the narrow portion of the space between the same with inclines
or shoulders 62 adapted to contact with the knots of the heddle-eye, whereby the
said eye in its passage through the space q' is guided to the level of the jaws, s,
projecting from said platforms at the end of the space, substantially as set forth.
7. In a warp-drawing machine, the combination, with the heddle support and the
platforms having a space or channel between them, of the slides moving in guides
on opposite sides of the space between said platforms, and coupled together by a
U-shaped yoke extending around under the heddle, the reciprocating heddle-eye
separating devices mounted on said slides, and means for reciprocating the slides,
substantially as set forth.
8. In a warp-drawing machine, the combination, with the platforms S, S', having
between them the space 2, of the slides p³, q, moving in guides on opposite sides
of the space q, and connected together by a U-shaped yoke B', the wedge-shaped
blocks 68, pawl-shaped spring-actuated fingers 69, 70, 72, the eye-holding jaws r³, s²,
the lever, attached to one of the said slides, and means for actuating the lever r³,
all substantially as described.
9. In a warp drawing machine, the combination, with a heddle-support or holder,
of the vertical shafts u³, 3, horizontal swinging hold back-fingers W, W', mounted
upon said vertical shafts and located one above the other, and adapted to lap and
swing past each other, said fingers having rounded hook-shaped ends extending
when swung inward, beyond a line or vertical plane passing centrally between the
front and back rows of heddle cords, whereby said rows of cords are so widely
separated that the hold back-finger on one side cannot catch any of the cords of the
opposite row, substantially as set forth.
10. In a warp-drawing machine, the combination with the heddle-support or
holder, of the horizontally swinging hold back-fingers with their operative
mechanism, said fingers being located one above the other, and adapted to lap
and swing past each other as described, the plates or platforms having a space
between the same, and jaws at the end of said space to hold the heddle-eye, the
slides moving in guides on opposite sides of the space between said platforms, and
the eye-separating and holding devices, consisting of the spring-actuated pawl-
shaped fingers and wedge-shaped blocks mounted on said slides, and means for
reciprocating the slides, all operating substantially as set forth.
11. In a warp-drawing machine, the combination, with the heddle-cord holdback
fingers, and the reciprocating eye-separating devices, of a reciprocating slide or
carrier, and a brush mounted on said slide or carrier, and adapted to carry the
heddle-eye when released into a position to be acted upon by the reciprocating
eye-separating fingers, substantially as described.
12. In a warp drawing machine, the combination, with the platforms S, S', with
theirs jaws, and the reciprocating eye-separating devices as described, and the
horizontally-swinging hold back fingers W, W₁, of the slides or carriers moving in
diagonal guides in said platforms, and the two brushes 78 mounted on said slides or
carriers, and mechanism for reciprocating said brush-carriers, all substantially as
described.
13. In a warp-drawing machine, the combination, with a warp-drawing needle,
of a horizontally rotating disk, a slide moving horizontally in said disk and
carrying at its outer end a warp-thread selecting-hook having an inclined face and

page_text: an eye covered by a light spring, and means for projecting the slide to cause the
selecting-hook to take a single warp-thread, and afterward retracting said slide,
substantially as described.
14. In a warp-drawing machine, the combination, with the warp-drawing needle,
of the rotating disk and its operative mechanism, the selecting-hook with its
carrying-slide moving horizontally in said disk, a spring for projecting said hook
beyond the periphery of the disk to cause its inclined face to bear against the
warp-thread, a cam for retracting the slide and selecting-hook, and the guide rod e*,
whereby the selected thread is brought against the lower edge of the warp-drawing
needle as the selecting hook is rotated, substantially as described.
15. In a warp drawing machine, the combination of the warp-drawing needle,
the rotating disk G', the slide 141 carrying at one end the selecting hook, having
an inclined side 148 and an eye or aperture 142 closed on one side by a light
spring 143, the spring 144, and the cam plate 146 adapted to act upon a pin 145
projecting from the slide 141, and the guide rod e', all'operating substantially as
set forth.
16. In a warp-drawing machine, the combination, with the warp-thread selecting
hook, of a pair of clamping jaws located above the level of the warp-thread
selecting-hook, and acting in a horizontal plane only, said jaws being adapted to
clamp and hold the warp threads tightly in position close to the point at which
they are taken by the selecting-hook, and means for operating said clamping jaws,
substantially as set forth.
17. In a warp-drawing machine, the combination, with the warp-thread selecting-
hook, of a pair of nippers provided with an upper and lower pair of clamping edges
or jaws, the former located above, and the latter below the path of the selecting-
hook, which passes horizontally between the inner ends of the said upper and lower
jaws, whereby the warp-threads are held tightly in position immediately above and
below the path of the selecting-hook at the time the latter is taking a thread, and
means for operating said clamping jaws, substantially as set forth.
18. In a warp-drawing machine, the table E' provided with two extensions 106,
107, having the adjustable nippers K', the slide 113 carrying the movable jaw, the
lever 114, pivoted to the slide, and a cam for operating said slide, combined with
the rotating disk G', and its sliding selecting-hook c, and means for operating the
disk and hook and the nippers, substantially as set forth.
19. In a warp drawing machine, the combination of the rotating and horizontally-
sliding warp-thread selecting-hook and its carrier, and means for operating the
same, the lower pair of nippers H', having a vertically reciprocating movement as
described, and the upper pair of nippers K¹³, adapted to clamp and hold the warp
threads at points immediately above and below the path of the selecting-hook, and
means for operating the nippers, substantially as set forth.
20. In a warp drawing machine, the combination, with the upper clamping
nippers and the rotating and horizontally-sliding warp-thread selecting-hook, and
means for operating the same, of the standard D³, the slide 123 moving in vertical
guide-ways on said standard D', the lower horizontal nippers H' connected by a
link and pivoted to said slide 123, a spring 133 for closing said nippers, a vertical
rod 135, having a wing or projection 134 placed between the said lower nippers
and adapted to separate their jaws against the stress of the spring 133, and means
for reciprocating the slide 123 with the nippers and oscillating the rod 135, all
substantially as set forth.
21. In a warp-drawing machine, the combination, with a tubular heddle-
supporting rod, and a screw-shaft placed therein adapted to be turned by hand, of
a nut operated by the screw-shaft within the tubular rod, the bar v, adapted to
move with said nut and connected therewith through a longitudinal slot or
-key-way in said rod, the hanger G adapted to slide on the tubular supporting rod
independently of the bar c, and a set-screw adapted to couple or connect the hanger
with the bar v, whereby the hanger can be adjusted longitudinally on its supporting

page_text: rod and freely moved along said rod independently of the adjusting screw when the
set-screw is loosened, substantially as set forth.
22. In a warp drawing machine, the within described reed-holding frame,
consisting essentially of the horizontal rods 52, 53, supported by the framework of
the machine, the lower one having a long U-shaped socket 54, for the reception
of the lower bar of the reed, and the upper one being provided with a swinging
socket 55 having a series of fingers or projections 57, and adapted to fit over the
upper bar of the reed when swung in over the bar 53, combined with a locking
catch for holding the swinging socket in place, substantially as described.
23. In a warp-drawing machine, the combination, with a warp-thread clamping
bar, of a tubular supporting rod connected therewith by lugs sliding on said rod,
a screw-shaft placed therein adapted to be turned by hand, a nut operated by said
screw-shaft within the tubular rod, and connected through a longitudinal slot or
key-way in said rod with said warp-thread clamping bar, whereby the latter can be
adjusted longitudinally on its supporting rod, substantially as set forth.
24. In a warp-drawing machine, the combination, with the reciprocating warp-
drawing needle and its sliding carrier, of an actuating lever provided with a rod
sliding in guides thereon and pivoted at one end to the needle carrier, a crank
connected with a slide moving in guides on said lever and adapted to oscillate the
latter, and means for rotating the crank, whereby a reciprocating movement is
imparted to the needle, substantially as described.
25. In a warp-drawing machine, the combination, with the casing P, of the
reciprocating needle Q, with its supporting guide and carrier, the latter sliding in
guides on the casing P, the lever K, fulcrummed at 61, the tubular rod e, sliding
in guides on the lever R, and pivoted at its upper end to the needle carrier, the
crank arm ², pivoted to a slide moving in guides on the lever R, and means for
rotating said crank arm, the spring, inclosed within the tubular rod e³, and the
rod, having a transverse pink, projecting through slots in the tubular rod 6',
and adapted to be brought into contact with a stop on the lever R, whereby the
spring is compressed just before the needle reaches the end of its stroke in either
direction, substantially as and for the purpose described.
Dated this 20th day of October 1891.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.