Improvements in the Jacquard or Pattern Mechanism of Looms for Weaving,
Year: 1897

page_text: Date of Application 16th Jan,, 1897
Complete Specification Left, 13th Oct., 1897-Accepted, 27th Nov., 1897
Improvements in the Jacquard or Pattern Mechanism of Looms for
Weaving,
I, EDWARD HOLLINGWORTH, of the Firm of Hutchinson, Hollingworth & Co.,
Limited, of Dobcross, in the County of York, Machine Makers and Power Loom
Makers, do hereby declare the nature of this invention to be as follows:- (which
invention has been communicated to me by William Wattie, of Worcester, in the
County of Worcester, and State of Massachusetts, in the United States of America,
Power Loom Maker).
This invention relates to that class of loom provided with an auxiliary or multiplier
pattern chain, in addition to the main mechanism chain as adopted and employed in
the Hollingworth and Knowles Loom. The object of the present invention is to
provide supplementary mechanism to be combined with the main pattern chain and
the auxiliary or multiplier pattern chain, which will automatically stop, at a pre-
determined time, the mechanism which operates the said pattern chain and re-start
the said mechanism causing the pattern chains to operate. This supplementary
mechanism may be combined with any suituable form of loom, my improvements
being designed more particularly to looms for weaving handkerchiefs, shawls and the
like, where a solid colour forms the body of the fabric and then a border. In using
my improvements in the class of loom referred to, I preferably combine the same
with the cloth take up beam so that after a certain amount of cloth has been taken
up my improved mechanism will operate automatically to start the mechanism which
operates the pattern chain.
I also combine my improved mechanism with indicating mechanism on the main
pattern chain cylinder so that the indicating mechanism will automatically operate
my improved mechanism to stop that mechanism which drives the pattern chain when
desired.
TASKER & CROSSLEY,
Halifax, Patent Agents.
Improvements in the Jacquard or Pattern Mechanism of Looms for
Weaving.
I, EDWARD HOLLINGWORTH, of the Firm of Hutchinson, Hollingworth & Co.,
Limited, of Dobcross, in the County of York, Machine Makers, and Power Loom
Makers, 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
D 071

page_text: statement:- (which invention has been communicated to me by William Wattie,
of Worcester, in the County of Worcester and State of Massachusetts, in the United
States of America, Power Loom Maker).
This invention relates to that class of loom provided with an auxiliary or multiplier
pattern chain, in addition to the main mechanism chain as adopted and employed in
the Hollingworth and Knowles Loom. The object of the present invention is to
provide supplementary mechanism to be combined with the main pattern chain and
the auxiliary or multiplier pattern chain, which will automatically stop at a pre-
determined time, the mechanism which operates the said pattern chain and re-start
the said mechanism causing the pattern chains to operate. This supplementary
mechanism may be combined with any suitable form of loom, my improvements
being designed more particularly to looms for weaving handkerchiefs, shawls and the
like, where a solid colour forms the body of the fabric and then a border. In using
my improvements in the class of loom referred to, I preferably combine the same
with the cloth take up beam so that after a certain amount of cloth has been taken
up my improved mechanism will operate automatically to start the mechanism which
operates the pattern chain, I also combine my improved mechanism with indicating
mechanism on the main pattern chain cylinder so that the indicating mechanism
will automatically operate my improved mechanism to stop that mechanism
which drives the pattern chain when desired.
Referring to the drawings:-
Fig. 1 shews a loom side from the inside, the rear view of the box pattern indicating
mechanism, and my supplemental mechanism combined therewith.
Fig. 2 a is rear view of the box pattern indicating mechanism, and a portion of my
improvements, looking in the direction of arrow a, Fig. 3.
Fig. 3 is a plan view thereof.
Fig. 4 is a front view, looking in the direction of arrow b, Fig. 3.
Fig. 5 is a section on line c, c, Fig. 4, looking in the direction of arrow a, same
figure.
Fig. 6 is a detail of the indicating disc on the friction take-up roll shaft, and
the engaging finger or lever, looking in the direction of arrow d Fig. 7.
Fig. 7 is a plan view of the parts shewn in Fig. 6, looking in the direction of
arrow e same figure, and,
Fig. 8 is a perspective view of one of the adjustable indicating cams or switches,
on the indicating disc.
Figs. 2 to 8 inclusive are shewn on an enlarged scale.
In the accompanying drawings, 1 is the loom side, on the upper part of which is
secured the stand or frame 2, on which are supported the several parts of the drop
box pattern indicating mechanism.
In said pattern indicating mechanism, 3 is the main pattern chain cylinder, loosely
mounted on a stud 4 secured in the frame 2. Said cylinder or barrel 3 is of the
ordinary construction, having the grooved or notched heads or ends 3¹, and carries the
main pattern chain 5, made up of links 6, which connect the bars 7, upon which are
mounted rolls 9 and tubes 8, in the ordinary way. The cylinder 3 is provided with a
hand wheel 10, by means of which said cylinder is turned in either direction, as
desired.
The auxiliary or multiplier pattern chain cylinder 11 is loosely mounted on a
stud 12 secured in the frame 2, and carries the auxiliary or multiplier pattern
chain 13, made up of links 6, bars 7, rolls 9 and tubes 8, similar to the main pattern
chain 5. The auxiliary pattern chain cylinder 11 is provided with a hand wheel 14,
to turn the same, as desired.
On a stud 15, secured in the upper part of the frame 2, on the outside of the
stud 4, are pivoted in this instance, three shuttle box indicator levers 16, 17, and 18,
which are operated by the main pattern chain 5. The outer ends 161, 171, and 181 of said
levers are preferably enlarged, as shewn, to act as weights, and the inner end of each
of said levers is pivoted to the upper end of the connector rods 19, see Fig. 3, leading

page_text: to the vibrator levers of the box motion not shewn, which may be of any ordinary
construction and operation, and is arranged at the lower part of the loom. Upon
said stud 15 is also pivoted one end of the weighted indicator lever 20, and one end of
the lock lever 21 which is provided with a convex portion 211, adapted to extend into
the concave portions 22¹ in the stop wheel 22, fast on the pattern chain cylinder 3,
see Fig. 5. On the stud 4, and next to the frame 2, is loosely mounted a ratchet
wheel 23, which is secured to the main pattern chain cylinder 3, and through said
ratchet wheel said main pattern chain cylinder is operated, as will be hereinafter
described.
On a stud 24 fast in the opposite end of the frame 2 from the stud 15, is pivoted
one end of a weighted indicator lever 25, which is acted on by the auxiliary or
multiplier pattern chain 13.
On the stud 24 is also pivoted one end of the lock lever 26, provided with a convex
portion 261 adapted to extend into concave portions 27' in the stop wheel 27 secured
to the auxiliary pattern chain cylinder 11. The lower end of the lock lever 26.is
secured to the lower end of the lock lever 21 by a spring 28, see Fig. 5, which acts
to move said levers towards each other, and hold them in engagement with their
respective stop wheels 22 and 27.
A ratchet wheel 29 is mounted loosely on the stud 12, and is secured to the
auxiliary pattern chain cylinder 11, and through said ratchet wheel 29, said auxiliary
pattern chain cylinder is operated, as will be hereinafter described.
The mechanism for operating the ratchet wheel 23, to communicate motion to the
main pattern chain 5, and for operating the ratchet wheel 29 to communicate motion
to the auxiliary pattern chain 13, consists in this instance of an arm or lever 30, fast
on a rock shaft 31, journalled in the lower part of the frame 2. The arm or lever 30
carries at its upper end two oppositely extending pawls 32 and 33 pivoted thereon.
The pawl 32 is adapted to engage the teeth of the ratchet wheel 23 of the main
pattern chain cylinder 3, and the pawl 33 is adapted to engage the teeth of the ratchet
wheel 29 of the auxiliary pattern chain cylinder 11.
On the other end of the rock shaft 31 is fast the inner end of an arm 34. Motion
is communicated to said arm 34, and through rock shaft 31, to the arm or lever 30
carrying the pawls 32 and 33. A give-way, or lock connection, intermediate of the
arm 34 and the driven part of the loom, from which said arm is operated, is provided,
and means preferably connected with the stop motion shaft, to automatically operate
said give-way connection to disconnect the arm 34 and immediately stop the move-
ment of the pattern surfaces, in case the filling gives out, and the filling stop motion
shaft acts to stop the loom.
In this instance the outer end of the arm 34 is provided with a pin or screw 35,
which is adapted to engage a notch 36¹ in the slotted head 36 on the connector
rod 37, see Fig. 2. The lower end of said rod 37 is connected with a lever 38
pivoted at 381 and carrying a pin 3811, which extends into a groove in a cam 39, fast
on a driven shaft 40, see Fig. 1.
A continuous up and down motion is communicated to said rod 37, and
through the arm 34, to the rock shaft 31 and the arm 30 carrying the pawls 32
and 33.
From the head 36 of the connector rod 37, a chain or cord 41 leads over a pulley 42
loose on the rock shaft 31, and over pulleys 43 and 44, mounted on the loom side, see
Fig. 1, to an arm 45 fast on the filling stop motion shaft 46. The rocking of the
stop motion shaft 46 will, through arm 45 and cord 41, draw the head 36 on the
rod 37 toward the front of the loom, and cause the pin 35 to be disengaged from the
notch 361, and be moved into the longitudial slot 36 in the head 36, to allow said
head and the connector rod 37 to move up and down without moving the arin 34, so
that the pattern indicating mechanisms may be instantly stopped, though the loom
may continue to run.
A pawl 47 pivoted on the arm 34, and bearing at one end against the inner edge
of the head 36, and attached at its other end to one end of a spring 48, acts to push
outwardly the head 36 on the rod 37, and hold the pin 35 in the notch 36¹,

page_text: to form a give-way or lock connection between the connector rod 37 and the
arm 34.
In order to regulate the operation of the ratchet wheels 23 and 29 of the main
11,
pattern chain cylinder 3 and the auxiliary pattern chain cylinder
respectively, by the pawls 32 and 33, a pawl guard or shield is provided for
each pawl, to keep the same out of engagement with its ratchet wheel
when desired. The pawl 32, which operates the ratchet wheel 23 of the main
pattern chain cylinder 3, is provided with a pawl guard or shield 49, pivoted at about
its central point on a pin 50 in the frame 2, in such a manner that the end 491,
which acts as a guard for the pawl 32, will extend under said pawl, see Fig. 2. The
other end 4911 of said shield 49 is connected by a pin 51 to a boss 52, which extends
out from the free end of the weighted indicator lever 25, of the auxiliary pattern chain 13.
The pawl guard or shield 53 for the pawl 33, which operates the ratchet wheel 29 of
the auxiliary pattern chain cylinder 11, is pivoted at about its central point on a
pin 54 in the frame 2, with its other end 53¹, which acts as a shield for the pawl 53
adapted to extend under the outer end of said pawl, see Fig. 2. The inner end 5311 of
said pawl guard 53, is connected by a pin 55 to a boss 56, which extends out from
the free end of the weighted indicator lever 20 of the main pattern chain 3.
I will now proceed to describe my supplemental mechanism combined with the
mechanism above described, whereby both the main pattern chain and the auxiliary
pattern chain will be automatically stopped, and automatically started when desired.
On the stud 15 is pivotally mounted one end of an indicating lever 57, which
in this instance is located between the indicator lever 20 and the lock lever 21,
see Fig. 3.
The main pattern chain cylinder 3 is provided with indicating surfaces to act on
said lever 57. Said indicating surfaces may form a separate row of tubes and rolls
between the heads or ends 3¹ of the cylinder 3, or, as in this instance, the indicating
surface or roll 58 (see Figs. 3 and 5) may be substituted for one of the tubes 8, which
extend into the notches or grooves in the ends 3¹ of the cylinder or barrel 3 see Fig. 4;
in this way it is not necessary to use a longer barrel or cylinder.
The inner end of the indicating. lever 57 is provided with a pin 571 which extends
over the top of the arm 30, which forms a stop to limit the downward motion of said
lever, see Fig. 5. A link or connector 60 attaches the end of said lever 57 to an
arm 61 fast on a shaft 62 mounted in the lower part of the frame 2, see Figs. 2, 4,
and 5. A second arm 63 is also fast on said shaft 62, and is connected by a link or
connector 64 to the lower end of a switch lever 65, pivoted at 66 on the head 36,
see Fig. 2. The upper end 65¹ of said lever 65 is adapted to extend under the pin
or screw 35 in the outer end of the arm 34, as shewn in Fig. 4, to cause said
arm 34 to move up and down with the head 36 and rod 37 to operate the pattern
surfaces.
A guide plate or shield 661 is secured by the screw 35 to the end of the
arm 34, as shewn in Fig. 2, and extends over the slotted portion of the head 36,
to hold the head in proper position relative to the arm 34. By means of the
indicating surface 58 through the lever 57, link 60, arın 61, shaft 62, arm 63,
and connector 64, a positive motion is communicated to the switch lever 65, to
move the upper end thereof 65' out from under the pin 35 in the arm 34, as shewn
in Fig. 2, to allow the head 36 and rod 37 to move freely up and down, without
moving the arm 34.
The switch lever 65 is provided with an outwardly extending arm 67, the outer
end of which is adapted to ride over an inclined surface 681 on the lever 68, and
extend into a notch 68" in the inner edge of said lever. A spring 69 acts to hold
said arın 67 in engagement with said notch 68" in the lever 68, as shewn in Fig. 2,
and until said arm 67 is disengaged from said notch, the switch lever 65 will remain
in the position shewn in Fig. 2, in which position as before stated, the head 36 and
rod 37 are free to move up and down without moving the arm 34, thus both the
main pattern chain and the auxiliary pattern chain will remain at rest, and the drop
boxes remain stationary while one shuttle is weaving in the body of the fabric.

page_text: To release the switch lever 65, and allow the same to be moved back under the
pin 35, to cause the arm 34 to be moved by the head 36 and rod 37, to operate the
pattern chains, I connect the upper end of the lever 68 through a connection 70,
passing over a pulley 71 loose on the rock shaft 31, and over a pulley 72 mounted
on the loom side, see Fig. 1, to a lever 73 pivoted at its lower end on a stud 74 in
the stand 75, see Fig. 6, and provided with an arm or lever 76 pivoted thereon, to
move in a horizontal plane. The free end of the arın or lever 76 is adapted to
travel on the periphery of a disc 77, which is the indicating disc, and in this instance
is made integral with the gear 771 fast on the shaft 78 of the friction take-up roll.
A pinion 79 fast on a driven shaft 80 meshes with the teeth on the gear 771, see
Fig. 1. A spring 81 is attached at one end to the projection 82, on the stand 75,
and at its other end to lever 73, and acts to hold projection 73¹ on lower part of said
lever, in engagement with the heel or projection 761 on the arm or lever 76, and the
free end of the arm or lever 76 on the periphery of the disc 77, see Fig. 7.
Projections 731 and 76¹ are connected by a spring 85.
On the indicating disc 77 are secured, in this instance by screws 83, indicating
devices or switch cams 84, in this instance two in number. Said indicating
devices 84 may be adjusted on the indicating disc 77, by providing said disc with a
series of holes to receive the screws 83.
As the indicating disc 77 revolves, the arm or lever 76 travels on the periphery
thereof, until it engages the curved plate 84' of the switch cam 84, which extends
over the periphery of the disc, as shewn in Fig. 8. The curved plate 84¹ causes the
arın 76 to leave the periphery of the disc 77, and the spring 81, acts to move the
lever 73 on its pivot 74, and cause the free end of the arm 76 to drop into
the notch 8411 in the switch cam 84, against the action of the spring 85.
The movement of the lever 73 through connection 70 moves the lever 68 inwardly
at its upper end, and disengages the arm 67, on the switch lever 65 from the
notch 68. in said lever 68, and allows the spring 69 to act to move the upper
end 65 of the switch lever 65 under the pin 35 in the arm 34, see Fig. 4.
From the above description in connection with the drawings, the operation of my
supplemental mechanism, in connection with the operation of the main pattern chain
and the auxiliary pattern chain mechanism, will be readily understood by those
skilled in the art.
The pattern surfaces are made up to produce the desired pattern in the fabric, and
the indicators which operate the supplemental indicating lever 57 of my mechanism,
are arranged according to the length of the body of the fabric to be woven, and the
indicating devices or switch cams 84 on the indicating disc 77 are adjusted
to correspond.
Supposing the parts to be in the position shewn in Fig. 4, and the loom running; as
long as a tube 8, on the main pattern surface, comes un:'er the indicator lever 20, said
lever will stay down, and through the pawl shield 53 prevent the pawl 33 on the
arm 30 from engaging with the ratchet wheel 29 to turn the auxiliary pattern
chain 13, and a roll 9 on said auxiliary pattern chain 13 being under the indicator
lever 25, see Fig. 3, will hold said lever up, and keep the end 491 of the pawl
shield 49 down, as shewn in Fig. 2, so that the pawl 32 will engage with the
ratchet 23, and turn the main pattern chain 5.
The next turn of the main pattern chain 5, as shewn in the drawings, will bring a
roll 9 under the indicator lever 20, see Fig. 3, which will raise said lever, and at the
same time lower the end 531 for the pawl shield 53 connected with said lever. 20, so
that on the return movement of the arm 30, the pawl 33 will engage with the ratchet
wheel 29, and move the auxiliary pattern chain 13 to bring a tube 8 under the
indicator lever 25, see Fig. 3, which will cause said lever to drop down, and at the
same time raise the end 49¹ of the pawl shield 49 connected with said lever 25, so that
on the return movement of the arm 30, the pawl 32 will be held out of engagement
with the ratchet wheel 23, thus leaving the main pattern chain 5 at rest as long as
the multiplier chain 13 runs and a tube comes under the indicator lever 25. As
soon as a roll 9 comes under said lever 25, the same is raised, and the end 49' of

page_text: the pawl shield 49 dropped, and then the main pattern chain 5 is operated, as above
described, and so the operation continues until in the revolution of the main pattern
chain cylinder 3, the indicating surface 58 is brought under the projecting point 57¹
of the indicator lever 57.
The next revolution of the main pattern chain cylinder will raise said indicating
lever 57, and through link 60, arm 61, shaft 62, arm 63, and connector 64, move
the switch lever 65 into the position shewn in Fig. 2. The switch lever 65 will be
held in this position by means of the arm 67 engaging the notch 6811 in the
lever 68, as above described.
The lead 36 and rod 37 are now free to move up and down without moving
the arm 34 which operates the pawl carrying arm 30. The body of the fabric
is now woven, the main pattern chain and the auxiliary pattern chain remaining
at rest.
The projecting end 571 of the indicating lever 57 is so made relative to the
indicating surface 58 that it will engage said surface to operate the lever 57 in
advance of the indicating surfaces which act on the other levers over the main
pattern chain, and before the surface 58 reaches the top of the cylinder or barrel 3,
as shewn in Fig. 5, the pawl carrying arm 30 will continue to operate by the
downward movement of the head 36 and arm 37, to move the cylinder 3 of the main
pattern surface sufficiently to carry the indicating surface 58 beyond the projecting
end 571 of the indicating lever 57, to allow said lever to drop at the proper time.
When the desired length of the body of the fabric is woven, the revolution of
the indicating disc 77, as the friction take up roll is revolved, will bring the switch
cam 84 into engagement with the arm 76, and through spring 81, lever 73, and cord
connection 70, the lever 68 will be moved in at its upper end, releasing the switch
lever 65, which is then moved by the spring 69 into the position shewn in Fig. 4,
with the end 65' extending under the pin 35 in the arm 30. The main pattern
surface and the auxiliary pattern surface are then again put into operation.
If at any time in the operation of the loom, the filling runs out, the give-way or
lock connection between the arm 34 and the head 36 on the rod 37 operates through
the cord or chain 41 attached to the arm 45 on the filling stop motion shaft 46, to
move in the head 36 and cause the pin 35 to extend into the upper slotted part 36'
of the head 36, and allow said head and rod 37 to move up and down without moving
the arın 34.
2
After the filling is replaced, the return movement of the filling stop motion
shaft 46 will slacken the cord 41, and allow the spring actuated pawl 47 to act to
push out the head 36, and bring the pin 35 on the arm 34 into the notch 36¹, and
hold it there to make a connection between said arm 34 and the head 36 on the
on the connector rod 37.
The advantages of my supplemental mechanism, combined with the main pattern
'chain and the auxiliary pattern chain mechanisms, will be readily appreciated by
those skilled in the art.
I am enabled automatically, through a supplemental indicating surface, and
mechanism operated thereby, to automatically stop the operation of the main
pattern chain and the multiplier pattern chain, and through an indicating disc
on the take-up roll shaft, or other driven shaft of the loom, I am enabled, through
intervening connections, to automatically put into operation the main and auxiliary
'pattern mechanisms.
My supplemental mechanism may be readily combined with looms of ordinary
construction of the class referred to, and by means of the adjustable indicating
devices or switch cams on the indicating disc 77, I can adjust the same according
to the length of the body of the fabric desired to be woven, without changing the
disc.
By changing the gears 771 and 79, I can vary the speed of the indicating disc 77,
to make it revolve faster or slower as desired.
It will be understood that the details of construction of my supplemental
mechanism may be varied somewhat if desired.

page_text: Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I claim that what I
claim is:-
Firstly. In a loom provided with main pattern chain and auxiliary pattern chain
mechanisms, the combination with said mechanisins, of a supplemental mechanism,
consisting of a supplemental indicating lever, a supplemental indicating surface, to
engage said lever in advance of the engagement of the other indicating surfaces on
the main pattern chain cylinder with their respective indicating levers, and
connections from said supplemental indicating lever to automatically disengage the
mechanism which operates the main and auxiliary pattern chain cylinders, and
mechanism to automatically connect and put in operation the mechanism which
operates the main and auxiliary pattern chain cylinders, substantially as set forth.
Secondly. In a loom provided with main pattern chain and auxiliary pattern
chain mechanisms, the combination with said mechanisms, of a supplemental
pattern operating mechanism for automatically stopping the mechanism which
operates said pattern chains, and for automatically starting said mechanisms to
operate said chains, said supplemental mechanism consisting of a supplemental
indicating lever adapted to be engaged by a supplemental indicating surface on
the main pattern chain cylinder in advance of the engagement of the other
indicating surfaces on said cylinder with their respective indicating levers, and
said indicating surface, and main pattern chain cylinder, and connections from
said supplemental indicating lever, to automatically disengage the mechanism
which operates the main and auxiliary pattern chain cylinders, and mechanism
connected with the cloth take-up roll to automatically connect and put in
operation the mechanism which operates the main and auxiliary pattern chain
cylinder, and said cloth take-up roll, substantially as set forth.
Dated this 12th day of October 1897
TASKER & CROSSLEY,
Halifax, Patent Agents.