Improvements in the Jacquard Mechanism for Operating the Shuttle Boxes in Looms for Weaving.
Year: 1897

page_text: Date of Application, 8th July, 1897
Complete Specification Left, 15th July, 1897-Accepted, 30th Oct.,
1897
PROVISIONAL SPECIFICATION.
Improvements in the Jacquard Mechanism for Operating the Shuttle
Boxes in Looms for Weaving.
I, EDWARD HOLLINGWORTH, of the Firm of Hutchinson, Hollingworth and
Company, Limited, of Dobcross, in the County of York, Machine Makers, do
hereby declare the nature of this invention (which invention has been communi-
cated to me by William Wattie, of Worcester, State of Massachusetts, United
States of America, Machine Maker) to be as follows:-
My invention relates to the Hollingworth and Knowles' looms for weaving
textile fabrics, and to that class of looms provided with an auxiliary, or multiplier
pattern chain or surface, in addition to the main pattern chain or surface.
By means of the multiplier pattern chain, certain bars of the main pattern chain
of the drop box indicating mechanism may be repeated, without constructing
successive similar bars in said main chain, as is well understood.
The object of my present invention is to provide, in addition to the multiplier
pattern chain, and the main pattern chain of the drop box indicating mechanism,
above described, a third pattern chain or surface, which I term a supplemental
chain, by means of which I can weave stripes in the body of the goods without
increasing the number of bars in the main pattern chain, or increasing the length
thereof over what is used in weaving plain body goods.
Said third pattern chain is connected directly with and operates the shuttle drop
box shifting mechanism.
Heretofore in weaving the class of goods above referred to, the main pattern
chain has to be provided with additional bars for weaving in the stripes through
the body of the goods between the headings, thus increasing very much the length
of the chain, for one revolution of the whole chain will be necessary to complete
the whole pattern.
For example, in weaving a blanket six feet in length, there will be 2448 picks;
if only one pattern chain is used, this chain must have 2448 bars, but by the use
of a second pattern chain, (the ordinary multiplier pattern chain above referred
to, with 8 bars of chain), the number of bars in the main pattern chain may be
reduced to 338, to weave a blanket with the ordinary headings, and fifty six
stripes through the body thereof, between the headings."
Now by the use of my third or supplemental chain with 16 bats, which is used
to weave the striped body of the blanket between the headings, the number of
bars in the main pattern chain can be reduced to 47, making a total of 63 bars of
chain in the two pattern chains, the main chain, and my third or supplemental.
chain, as against 338 bars in the main pattern chain when my supplemental
pattern chain is not used. The number of bars of pattern chain in the second or
multiplier pattern chain is the same in each case, & bars.
My invention consists in certain novel features of construction and operation
of the pattern chain mechanisms of the drop box indicating mechanism of looms
of the class above described, and more particularly in combining with the main

page_text: pattern chain or surface and the multiplier pattern chain or surface, and the
shuttle drop box shifting mechanism, a third pattern chain or surface, and pro-
viding mechanism for operating said third pattern chain in connection with the
main and multiplier pattern chains, and the shuttle drop box shifting mechanism,
for the purpose above stated.
TASKER & CROSSLEY,
Halifax, Patent Agents.
Improvements in the Jacquard Mechanism for Operating the Shuttle.
Boxes in Looms for Weaving.
.
I, EDWARD. HOLLINGWORTII, of the Firm of Hutchinson, Hollingworth and
Company, Limited, of Dobcross, in the County of York, Machine Makers, do
hereby declare the nature of this invention, and in what manner the same is to be
performed (which invention. has been. communicated to me by William Wattie, of
Worcester, State of Massachusetts, United States of America, Machine Maker) to
be particularly described and ascertained in and by the following statement:-
"My invention relates to the Hollingworth and Knowles' looms for weaving
textile fabrics, and to that class of looms provided with an auxiliary, or multiplier
pattern chain or surface, in addition to the main pattern chain. or surface...
By means of the multiplier.pattern chain, certain bars of the main pattern chain
of the drop box indicating mechanism may be repeated, without constructing
successive similar bars in said main chain, as is well understood.
The object of my present invention is to provide, in addition to the multiplier
pattern chain, and the main pattern chain of the drop box indicating mechanism,
above described, a third pattern chain or surface, which I term a supplemental
chain, by means of which I can weave stripes in the body of the goods without
increasing the number of bars in the main pattern chain, or increasing the length
thereof over what is used in weaving plain. body goods.
Said third pattern chain is connected directly with and operates the shuttle drop
box shifting mechanism.
Heretofore in weaving the class of goods above referred to, the main pattern
chain has to be provided with additional bars for weaving in the stripes through
the body of the goods between the headings, thus increasing very much the length
of the chain, for one revolution of the whole chain will be necessary to complete
the whole pattern.
For example, in weaving a blanket six feet in length, there will be 2448 picks;
if only one pattern chain is used, this chain must have 2448 bars, but by the use
of a second pattern chain, (the ordinary multiplier pattern chain above referred
to, with 8 bars of chain), the number of bars in the main pattern chain may be 4
reduced to 338, to weave a blanket with the ordinary headings, and fifty-six
stripes through the body thereof, between the headings.
Now by the use of my third or supplemental chain with 16 bars, which is used
to weave the striped body of the blanket between the headings, the number of
bars in the main pattern chain can be reduced to 47, making a total of 63 bars of
chain in the two pattern chains, the main chain, and my third or supplemental
chain, as against 338 bars in the main pattern chain when my supplemental
pattern chain is not used. The number of bars of pattern chain in the second or
multiplier pattern chain is the same in each case, 8 bars.
My invention consists in certain novel features of construction and operation

page_text: of the pattern chain mechanisms of the drop box indicating mechanisms of looms
of the class above described, and more particularly in combining with the main
pattern chain or surface and the multiplier pattern chain or surface, and the
shuttle drop box shifting mechanism, a third pattern chain or surface, and pro-
viding mechanism for operating said third pattern chain in connection with the
main and multiplier pattern chains, and the shuttle drop box shifting mechanism,
for the purpose above stated.
I have shewn in the drawings my improvements applied to a four by one box
loom, and combined with main and multiplier pattern chain mechanisms and
operating parts.
Referring to the drawings:-
Fig. 1 shews a loom side, upon the upper part of which is supported the box
pattern indicating mechanism embodying my improvements, and upon the lower
part the box shifting mechanism.
Fig. 2 is a front view of the box pattern indicating mechanism shewn in Fig. 1,
und looking in the direction of arrow a, Fig. 4.
Fig. 3 is a rear view of the box pattern indicating mechanism, looking in the
direction of arrow b, Fig. 4.
Fig. 4 is a plan view, looking in the direction of arrow c, Fig. 2.
Figure 5 is a vertical cross section, on line 5, 5, Fig. 4, looking in the direction
of arrow a, same figure.
Fig. 6 is a vertical cross section, on line 6, 6, Fig. 4, looking in the direction of
arrow a, same figure.
Fig. 6 corresponds to Fig. 6. but shews some of the parts in a different position.
Fig. 7 is a detail of the indicating disc, on the friction take-up roll, and the
engaging finger or lever, looking in the direction of arrow d, Fig. 8.
Fig. 8 is a plan view of the parts shewn in Fig. 7, looking in the direction of
arrow e, same figure, and,
Fig. 9 is a perspective view of one of the adjustable indicating cams or switches
on the indicating disc.
Figs. 2 to 9 inclusive are shewn on an enlarged scale.
In the accompanying drawings, 1 is the loom arch stand 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 grooved or notched heads or ends, and
earrying the main pattern chain 5, made up of links 6, which connect the bars 7
upon which are mounted tubes S and rolls 9, 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, supported. in the frame 2 and in the bracket 21, and in this instance
behind and upon the opposite side of the stand 2 from the main pattern chain
cylinder, see Fig. 4.. The cylinder 11 carries the auxiliary or multiplier pattern
chain 13 made up of links 6, bars 7,. tubes 8, and rolls 9, similar to the main
pattern chain 5. The cylinder 11 is provided with a hand wheel 14, to turn said
cylinder as desired:
+
On a stud 15 secured in a boss 16 on one end of the stand 2, are loosely mounted
the outer weighted ends of two shuttle box indicator levers 17 and 18, .which
extend over and are operated by the main pattern chain 5.
The inner ends of the levers 17 and 18 are in this instance bifurcated or pro-
vided with open end slots to receive the loops or heads 191.on the upper ends of
the connector rods 19, see Figs. 1 and 2, which lead to the two connectors 48, to
which they are adjustably attached by a collar 49, and set screw 50, see Fig. 1.
The connector rods 19 can move up, without raising the levers 17 and 18 because
of the slots in the ends of the latter levers,

page_text: The connectors 48, to be hereinafter described, are attached at their lower ends
to the vibrator levers 20 of the box shifting mechanism, shewn in Fig. 1, and
which may be of the ordinary construction and operation, and consists of the
upper and lower cylinder gears 21 and 22, vibrator gear 23, carried on the vibrator
lever 20 pivoted at its outer end at 24, and the vibrator connector 25 pivoted at one
end on the vibrator gear 23, and connected at its other end to the compound
lever 26, which operates the shuttle box lifter rod 27, all in the usual way, and
well known in the Hollingworth and Knowles loom.
A ratchet wheel 28 is mounted on the stud 4, and is secured to the main pattern
chain cylinder 3, see Fig. 4. A stop wheel 29 is also mounted on the stud 4, and
secured to the ratchet wheel 28, to turn with said' ratchet wheel. Said stop wheel
is provided with concave portions 291 in its periphery, into which is adapted to
extend the convex portion 30¹ on the lock lever 30, pivoted at 31 on the frame 2,
see Fig. 5, and connected by a spring 32 and link 321 to a similar lock lever, to be
hereinafter described.
On the stud 12 of the multiplier pattern chain cylinder 11 is mounted a ratchet
wheel 33, see Figs. 4 and 6, which is secured to the multiplier pattern chain
cylinder 11. A stop wheel 34, Fig. 4, is also mounted on said stud 12, and is
secured to the ratchet wheel 33 to turn with said ratchet wheel, and is provided
with concave portions 341 in its periphery, into which extends a convex portion
on the lock lever 35 on the frame 2, see Figs. 3, 4, and 5.
A spring 36 encircling a pin 36', sliding at one end in an eye 3611, and secured
at its other end to the lock lever 35, see Fig. 3, acts to hold said lever 35 in
engagement with the stop wheel 34.
I will now describe my third or supplemental pattern chain or surface combined
with the main pattern chain, and the multiplier pattern chain, above described,
and the shuttle drop box shifting mechanism, and in this instance located at the
front of the stand or frame 2, at the opposite end thereof from the main pattern.
chain 5, see Fig. 4.
On a stud 37 supported in the frame 2, and the bracket 211 is loosely mounted a
pattern chain cylinder 38, carrying the supplemental pattern chain 39, made up
of links 6, bars 7, tubes 8, and rolls 9, in the ordinary way. A hand wheel 40 is
secured to the pattern chain cylinder 38, to turn the pattern chain as desired. On
the stud 37 of the supplemental chain 39 is mounted a ratchet wheel 41, which is
secured to the supplemental pattern chain cylinder 38. A stop wheel 42 is also 3
mounted on said stud 37, and is secured to the ratchet wheel 41 to turn with said
ratchet wheel, and is provided with concave portions 421, in its periphery, into
which is adapted to extend a convex portion 431 on the lock lever 43, pivoted
at 43 on the frame 2, see Fig. 5, and connected by a rod 321 and a spring 32 to
the lock lever 30. The spring 32 acts to draw the lock levers 30 and 43 towards
each other, to hold them in engagement with the stop wheels 29 and 42, as shewn
in Fig. 5.
On a stud 44 secured in a boss 45, on the end of the frame 2, are loosely mounted
the weighted outer ends of two shuttle box indicator levers 46 and 47, which
extend over and are operated by the supplemental pattern chain 39. The inner 4
ends of the levers 46 and 47 are in this instance provided with open end slots, to
receive the loops or heads 48¹ on the upper end of the connector rods 48, to allow
said rods to move up without raising said levers.
The lower ends of said rods 48 are attached to the vibrator levers 20 of the box
shifting mechanism, as above described.
It will be seen that the movement of the indicator levers 17 and 18 on the main
pattern chain 5, through the connector rods 19, attached to the connector rods 48,
will communicate motion to the vibrator levers 20 of the box shifting mechanism,
and the indicator levers 46 and 47 on the supplemental pattern chain 39, through
the connector rods 48 attached to the vibrator levers 20, will also communicate 5
motion to said vibrator levers 20, to operate the box shifting mechanism.

page_text: I will now describe the mechanism for operating the main pattern chain 5, the
multiplier pattern chain 13, and the supplemental pattern chain 39.
In the lower central part of the frame 2 in a boss 51, is mounted a shaft 52, see
Figs. 4 and 5, adapted to have a rocking motion. On the front end of the shaft 52
is secured, by a set screw 53, the lower end of the rocking pawl carrying arm 54.
Upon the upper end of said pawl carrying arm 54 are pivoted three pawls 55, 56,
and 57. The pawl 55 acts as a pull pawl, and is provided with a hook 551 at its
free end, which extends over and engages the teeth on the ratchet wheel 41, to
move said ratchet wheel, and with it the supplemental pattern chain cylinder 38
and chain 39. The pawl 56 is pivoted on the opposite side of the pawl carrying
arm 54, from the pawl 55, and acts as a push pawl, and its free end engages the
teeth on the ratchet wheel 33, to move said ratchet wheel, and with it the multi-
plier pattern chain cylinder 11 and chain 13.
The pawl 57 is pivoted in this instance on the front of the pawl carrying arm 54,
and extends in an opposite direction to the pawls 55 and 56. Said pawl 57 acts
as a push pawl, and the free end thereof engages with the ratchet teeth on the
ratchet wheel 28, to move said ratchet wheel, and the main pattern chain
cylinder 3, and chain 5.
Upon the opposite end of the shaft 52 from from the pawl carrying arm 54, is
secured the inner end of the arm 58, see Fig. 3, which is connected through a
give-way or lock connection with the driven part of the loom. Said lock con-
nection and mechanism connected with the stop motion shaft, to automatically
operate said lock connection, and disconnect the arm 58, to stop the movement of
said arm and the pawl carrying arm 54, so that the movement of the pattern chains
will cease, in case the weft or filling gives out.
I will briefly describe said mechanism herein.
The outer end of the arm 58 is provided with a screw or pin 59, which is
adapted to engage a notch 60¹ leading out from a vertical slot 60' in the head 60
on the upper end of a connector rod 61. The lower end of said rod 61 is connected
with a cam on the bottom shaft, or with some other driven part of the loom, not
shewn, from which a continuous up and down motion is communicated to said
rod G1, and through the arm 58 to the rock shaft 52, and the pawl carrying arm 54.
From the head 60 of the connector rod 61, a connection 62 leads over a pulley 63
loose on the shaft 52, and over two pulleys 64 and 65 mounted on the loom side,
see broken lines Fig. 1, to an arm 66 fast on the stop motion shaft 67, so that
when the loom is stopped by the stop motion shaft, in case the filling gives out,
the connection 12 will be pulled, to draw the head 60 of the connector rod 61, to
the right in Fig. 3, and move the pin 59 out of the notch 60" into the slot 60', to
allow the head 60 and connector rod 61 to move up and down without moving the
arm 58, so that the pattern indicating mechanism will be instantly stopped,
though the loom may continue to run.
A pawl 68 pivoted at 69 on the arm 58, and bearing at one end against the inner
edge of the head 60, and attached at its other end to one end of a spring 70 securel
at its other end to the arm 58, acts to hold the pin 59 in the notch 60" in the
head 60, to form a lock connection between the connector rod 61 and the arm 58.
I will now describe the mechanism for controlling the engagement of the
pawls 55, 50, and 57 with their respective ratchet wheels, so that only one pattern
chain will be operated at a time, and each chain, that is the main pattern chain,
the multiplier pattern chain, and the supplemental pattern chain, will be operated
at the proper time.
The stopping and starting of the chains, at the proper time is controlled by indi-
cator levers extending over and operated by the pattern chains and connecting
mechanisms. As before stated, the main pattern chain 5 is used to weave in the
headings or borders, and the multiplier pattern chain 13 is used, in connection
with the main pattern chain, to repeat certain bars of the main pattern chain,
the main pattern chain being at rest while the multiplier pattern chain is working

page_text: and the multiplier pattern chain being at rest while the main pattern chain is
working.
By means of the third or supplemental pattern chain 39, the striped body of
the fabric, between the headings, is woven, and when said third chain is working,
the other two chains are at rest.
In order to control the movement of the ratchet wheel 33, of the multiplier
pattern chain mechanism, I provide a shield or guard 71, which extends under the
pawl 56, see Fig. 4, to raise said pawl, and prevent its engagement with said
ratchet wheel 33. The shield or guard 71 is pivoted at 72 on the stand 2;" 'see
Fig. 6, and has an extension or arm 711 on the opposite side of its pivot support;
the end of which is provided with an open end slot, into which extends a pin 73,
extending out from the weighted end 74¹ of the indicator lever 74, extending over
the main pattern chain 5, and loosely mounted at its outer end on the stud 15,
see Fig. 4.
It will thus be seen that the row of indicators on the main pattern chain 5,
under the indicator lever 74, through said lever 74, pin 73, and the arm 71' and
shield 71, controls the action of the pawl 56 of the multiplier pattern chain.
mechanism.
A shield or guard 75 extends under the pawl 57, which moves the ratchet
wheel 28 of the main pattern chain mechanism. The shield 75 is pivoted at 76, on the
stand 2, see Fig. 6, and has an arm or extension 75¹ on the opposite side of its
pivot support, the end of which is provided with an open end slot, into which
extends a pin 77 extending out from the weighled end 78¹ of the indicator
lever 78, extending over the multiplier pattern chain 13, and loosely mounted at
at outer end on the stud 44, see Figs. 4 and 6.
It will thus be seen that the row of indicators on the multiplier pattern chain 13
under the indicator lever 78, through said lever 78, pin 77, and the arm 75¹ and
shield 75, controls the action of the pawl 57 of the main pattern chain mechanism,
in connection with a shield or guard 79, to be hereinafter described, connected
with the supplemental pattern chain mechanism.
I will now describe the construction and operation of the shield or guard, which
extends under the pawl 55, which operates the ratchet wheel 41 of the supple-
mental pattern chain 39.
The shield or guard 80 is pivoted at 81 on the stand 2, see Fig. 6. Said shield
or guard extends under the operating pawl 55 of the supplemental pattern
chain 39, see Fig. 4. Upon the opposite side of the pivot 81 of the shield 80, s
an extension or arm 82, upon the outer upper end of which is pivoted the lower
end of the shield or guard 79, which extends under the pawl 57 of the main
pattern chain mechanism, and operates in connection with the shield 75, as above
stated.
The shield 79 has a pivotal motion in a vertical plane on the supporting
arm 82, and is provided with a rear extension 791, which engages an upward
extension 821 on the arm 82. A spring 83 attached to the shield 79 and to the
upward extension 821, see Fig. 3, holds the shield 79 in its raised position with
the rear extension 791 engaging the upward extension 821.
Extending over the main pattern chain 5 is an indicator lever 84, the outer
end of which is mounted loosely on the stud 15, and the inner end provided with
a pin 85, which extends over the top of the pawl carrying arm 54, see Fig. 4, to
limit the downward motion of said lever. The indicator lever 84 has a downward
extension 84¹ thereon, see Fig. 3, which is adapted to be engaged by an indicator 86
on the main pattern chain.
A link 87 connects the outer end of the indicator lever 84 with the arm 82,
forming a part of the shield 80, see Figs. 2 and 3.
An angle lever 88, see Figs. 5 and 6, is pivoted at 89 on the frame 2, and is
provided with a notched portion 88 in the upper end of its vertical arm, into
which a downward extension 8211 on the arm 82 is adapted to extend. A spring 90
attached to the arm 82 and to the stand 2, and a spring 91 attached to the angle

page_text: lever 88 and to the stand 2, act. to hold the arm 82 and the angle lever 88 in
engagement, as shewn in said Figs. 5 and 6..
"
Upon the stud 44 is loosely mounted the outer end of the indicator lever 92, see
Figs. 2 and 4, which extends over and is acted on by indicators on the supple-
mental pattern chain 39.
On the inner end of the indicator lever 92 is hung the upper end of a lever 93,
which has a vertical slot 931 in the lower part thereof, with a notch 93" leading
out from said slot. A spring 94 is secured at one end to the lever 92, and at its
other end to the stand 2, and tends to keep the arm towards the right in Fig. 2.
To the lower end of the lever 93 is secured one end of a connection 95, which
leads over a pulley 96, mounted in a hanger 97 on the stand 2, and over a second
pulley 98, shewn by broken lines in Fig. 1, to the upper end of the lever 99 of
the indicating mechanism, shewn in Figs. 7 and 8.
.
In said indicating mechanism, the lever 99 is pivoted at its lower end on a
stud 100 secured in the stand 101; and is provided with a lever or indicating
finger 102 pivoted thereon, to move in horizontal plane, and the free end of the
finger 102 is adapted to travel on the periphery of a disc 103, which is the indi-
cating disc, and in this instance is made integral with the gear 104, fast on the
shaft 105 on the friction take-up roll. A pinion 106 fast on a driven shaft 107.
meshes with the teeth on the gear 104, see Fig. 7. A spring 108 is attached at
one end to a rearward projection 1021 on the finger 102, and at its other end to
an extension 991 on the lever 99, see Fig. 8, and acts to hold the rearward projec-
tion 1021 in engagement with the extension 991 on the lever 99, see Fig. 8, and
the free end of the finger 102 on the periphery of the disc 103..
i
On the indicating disc 103 are secured in this instance by screws 109, adjustable
indicating devices or switch cams 110, in this instance two in number. As the
indicating disc 103 revolves, the indicating lever or finger 102 travels on the
periphery thereof, until it engages, the curved plate 110¹ of the switch cam 110,
which extends over the periphery of the disc, as shewn in Fig. 9.
The curved plate 110¹ causes the finger 102 to leave the periphery of the disc 103
against the action of the spring 108, and the spring 111 secured at one end to the
stand 101, and at its other end to the lever 99, acts to move the lever 99 on its
pivot stud 100, and cause the free end of the finger 102 to drop into the notch 1104
in the switch cam 110..
.
The movement of the lever 99 through the connection 95 moves the lever 93
hung on the indicator lever 92 to the left, see Fig. 2, and allows the screw or
pin 112, which extends loosely through the slot 931, in said lever 93, and is secured
in the end of the angle lever 88, as above described, to enter the notch 93" leading
out from the slot 931 when a tube on the supplemental pattern chain 39 comes
under the indicator lever 92, and allows said lever and the lever 93 to drop down.
In the revolution of the supplemental pattern chain 39, when a roll 9 comes under
the indicator lever 92, said lever win be raised, and with it the lever 93, causing
the angle lever 88, by the engagement of the pin 112 thereon with the notch 93,
to move on its pivotal support 89, and be disengaged from the arm 82 of the.
shield 80, see Fig. 6, and allow the spring 90 to act to draw down the arm 82,
and with it the shield 79, so that the pawl 57 can engage with the ratchet wheel 28
of the main pattern chain mechanism. At the same time, the shield 80 is
raised to hold 'the pawl 55 out of engagement with the ratchet wheel 41
of the supplemental pattern chain mechanism, and the continued revolution of
the indicating disc 103, causes the indicating finger 102 to pass out of th
notch 110 in the switch cam 110, on to the periphery of the indicating disc 103,
moved by the spring 108; and acts to move back the lever 99 against the action
of the spring 111, and loosen the connection 95, to allow the spring 94 to act to;
draw the lever 93. to the right in Fig: 2; and disengage the pin 85 from the
notch 93, and move it into the slot 93, to allow the lever. 93 and the indicator.
lever 92 to move freely up and down,-without moving the angle lever 88.
The revolution of the main pattern chain 5, brings the indicator 86 on
said

page_text: chain under the indicator lever 84 at the proper time, and raises said lever 84,
and through the link 87 raises the arm 82, and allows the spring 91 to act to
draw over the angle lever 88, and bring the end thereof under the arm 82, to hold
ii in its raised position, as shewn in Fig. 6.
The raising of the arm 82 raises the shield 79 under the pawl 57 of the main
pattern chain mechanism, and lowers the shield 80 under the pawl 55 of the
supplemental pattern chain mechanism, as shewn in Fig. G.
The shield 79, extending under the pawl 57 of the main pattern chain
mechanism, is pivoted to the arm 82, to have a movement in a vertical plane
independent of said arm, so that the arm 82 may be raised while the pawl 57 is
in engagement with the teeth of the ratchet wheel 28, and after the pawl 57.has
completed its stroke, the spring 83 will then act to carry the pawl from engage-
ment with the ratchet wheel by causing the shield 79 to lift the said pawl.
From the above description, in connection with the drawings, the operation of my
improvements in box indicating mechanism will be readily understood by those
skilled in the art, and briefly is as follows:-
Supposing the several parts of the mechanisms to be in the positions shewn in
the drawings (Fig. 6 shewing the proper position of the pawl shield mechanism)
and the loom running. The main pattern chain 5 will be in operation, through
the pawl 57 operating the ratchet wheel 28, see Fig. 4 and the heading or border
of the blanket will be woven in case a blanket is being woven.
When a roll 9
comes under the indicator lever 74 said lever is raised and through pin 73 raises
the end 71 of the shield 71, and lowers said shield 71, allowing the pawl 56 to
engage and turn the ratchet wheel 33, and revolve the multiplier pattern chain
cylinder 11 and the multiplier pattern chain 13. The revolution of the chain 13
carries the roll 9 from under the indicator lever 78, (see Fig. 4), which drops down,
and through pin 77, (see Fig. 6) lowers the end 751 of the shield 75, and raises
the shield 75, to hold the pawl 57 out of engagement with the ratchet wheel 28,
so that the main pattern chain 5 will stop. The multiplier pattern chain 13 will
continue to run until the indicator lever 78 is raised by a roll 9, when the shield 75
will be lowered, and the main pattern chain 5 will be operated, and the multiplier
cháin stop and so on, the main and multiplier pattern chains starting and stopping
according to the indications of the pattern surfaces, and the drop box mechanism
being operated through levers 17 and 18. During this time the third or supple-
mental pattern chain is at rest.
When in the revolution of the main pattern chain 5 the indicator 86, see Fig. 3,
engages the projection 84 on the indicator lever 84, said lever is raised, and
through link 87, raises the arm 82 of the shield 80, and with said arm 82 the
shield 79, to hold the pawl 57 out of engagement with the ratchet wheel 28 of
the main pattern chain 5, and stop said chain. The raising of the arm 82 from the
position shewn in Fig. 6 to the position shewn in Fig. 6 lowers the shield 80, and
allows the pawl 55 to engage and turn the ratchet wheel 41 and the supplemental
pattern chain 39, at the same time the shield 79 is raised as shewn in Fig. 6, to
stop the main pattern chain 5.
The revolution of the chain 39 brings a tube under the indicator lever 92, seo
Fig. 4, and lowers, said lever, and with it the lever 93, bringing the notch 93"
in the slot 93 opposite the pin 112 in the angle lever 88, see Fig. 2.
The supplemental pattern chain 39 continues to run, weaving the striped body
between the headings, in the case of a blanket, until the revolution of the indi-
cator disc 103 on the take-up roll brings the cam switch 110 in engagement with
the lever 102; the lever 99 is then moved by the spring 111, and through the
connector 95, see Fig. 7, the lever 93 is moved to the left, see Fig. 2, so that
the pin 112 will enter the notch 931, and the raising of the lever 93, through the
indicator lever 92, when a roll comes under said lever, will rock the angle lever 88,
and disengage the upright arm thereof from the arm 82, see Fig. 6^, causing the
shield 79 to drop and allow the pawl 57 to put into operation the main pattern

page_text: chain 5. The shield 80 will at the same time be raised, to disengage the pawl 55,
and stop the supplemental pattern chain 39.
As soon as the lever 102 of the indicating mechanism passes on to the periphery
of the disc 103, the connection 95 will be released, and the spring 94 act to draw
the lever 93 to the right in Fig. 2, so that the pin 112 will work free in the slot 93¹.
The supplemental chain 39 will remain at rest, until the revolution of the main
pattern chain 5 brings the indicator 86 into position to operate the indicator
lever 84, when the operation above described will be repeated to start the supple-
mental chain 39. In this way, the headings or borders are woven by the main and
multiplier nattern chains, and the striped body between the headings by the
third or supplemental pattern chain, in weaving blankets, or shawls, and the like.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim is:-
Firstly. In a loom provided with main pattern chain mechanism and multiplier
pattern chain mechanism, the combination therewith, of a third or supplemental
pattern chain mechanism, and intermediate mechanism connecting said supple-
mental pattern chain mechanism with the main pattern chain mechanism, and
mechanism for operating said supplemental pattern chain mechanism, and con-
nections from the cloth take-up beam to an indicator lever of the supplemental
pattern chain mechanism, to automatically put into action the main pattern chain,
substantially as described.
Secondly. In a loom of the class described, the combination with a main pattern
chain mechanism, a multiplier pattern chain mechanism, and a third or supple-
mental pattern chain mechanism, of connections between the main and multiplier
pattern chain mechanisms, and between the main and supplemental pattern chain
mechanisms, and connections from the cloth take-up beam or roll to a supple.
mental indicator lever of the supplemental pattern chain mechanism, and connec
tions from said supplemental indicator lever to the pawl, shield or guard of the
main pattern chain mechanism, to automatically operate said shield, and put into
action the main pattern chain mechanism from the supplemental pattern chain
mechanism, substantially as described.
Thirdly. In a loom of the class described, the combination with the main pattern
chain mechanism and the multiplier pattern chain mechanism, and intermediate
connecting mechanism, and mechanism for operating said two pattern chain
mechanisms, of a third or supplemental pattern chain mechanism, and inter-
mediate mechanism connecting said supplemental pattern chain mechanism with
the main and multiplier pattern chain mechanisms, and mechanism for operating
said supplemental pattern chain mechanism, substantially as described.
Fourthly. In a loom, the combination with a main pattern chain mechanism, a
multiplier pattern chain mechanism, and a shuttle drop box shifting mechanista,
and connections between the main pattern chain mechanism and the box shifting
mechanism, to operate said shifting mechanism from the main pattern chain, of a
third or supplemental pattern chain mechanism, and connections between said
supplemental pattern chain mechanism and the drop box shifting mechanism, to
operate said box shifting mechanism from the supplemental pattern chain, and
connections between the main pattern chain mechanism and the supplemental
pattern chain mechanism, substantially as set forth.
A
141
fT.... 1807
TASKER & CROSSLEY,
Halifax, Patent Agents.