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

page_text: Date of Application, 9th July, 1897
Complete Specification Left, 14th Aug., 1897-Accepted, 15th Jan.,
1898
Improvements in the Jacquard Mechanism for Operating the Shuttle
Boxes in Looms for Weaving.
I, EDWARD HOLLINGWORTH, of the Firm of Hutchinson, Hollingworth and Com-
pany, Limited, of Dobcross, in the County of York, Machine 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, State of Massachusetts,
United States of America, Machine Maker).
addition
or surface, in
My invention relates to the Hollingworth and Knowles' looms for weaving
textile fabrics, and to that class of looms having an auxiliary or multiplier pattern
chain
to the main pattern chain or surface,
by means of which 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.
My present invention is to add supplemental pattern chain mechanism, to be used
in connection with the ordinary main and multiplier pattern chain mechanisms,
by means of which the number of bars of chain in the main pattern chain is much
reduced, the apparatus being particularly applicable for example in the case of
blankets, to weave in a striped body between the headings.
By reason of the slow movement of the indicator disc, and the flexibility and
length of the connections from said indicator disc on the take-up roll, it may happen
that the main pattern chain is not started just at the time it ought to be, and an
extra pick or two is put in the fabric by the third pattern chain mechanism before
the main pattern chain is started, thus making an imperfection in the fabric.
The object of my present invention is to do away with indicator disc on the
take-up roll, and the connections therefrom to the chain mechanisms above referred
to, and to provide a fourth pattern chain mechanism, which operates in connection
with the main pattern chain mechanism to start said mechanism instantly when
desired, that is to change on the pick. The fourth pattern chain is also used in
connection with the third pattern chain as a multiplier chain, in the same way as
the ordinary multiplier chain is used in connection with the main pattern chain.
For example, if the third pattern chain is weaving stripes, by means of the fourth
pattern chain, the stripes can be divided, and additional stripes put in without
increasing the length of the third chain.
My invention consists in certain novel features of construction and operation of
the several pattern chain mechanisms and intermediate connections, and more
particularly in combining with the main pattern chain mechanism, the multiplier
pattern chain mechanism, a third pattern chain mechanism, and the shuttle box
shifting mechanism, a fourth pattern chain mechanism.
01 JT..1.. 1807
TASKER & CROSSLEY,
Halifax, Patent Agents.

page_text: Improvements in the Jacquard Mechanism for Operating the Shuttle
Boxes in Looms for Weaving.
I, EDWARD HOLLINGWORTH, of the Firm of Hutchinson, Hollingworth and Com-
pany, Limited, of Dobcross, in the County of York, Machine Maker, do hereby
declare the nature of this invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:(which invention has been communicated to me by William Wattie,
of Worcester, State of Massachusetts, United States of America, Machine Maker).
My invention relates to Hollingworth and Knowles looms for weaving textile
fabrics, and to that class of looms having an auxiliary or multiplier
pattern chain or surface, in addition to the main pattern chain or
surface, by means of which 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 described in prior Letters Patent
granted to me No. 16175 of 1897 and also in Letters Patent. granted to me No. 1190
of 1897.
By reason of the slow movement of the indicator disc, and the flexibility and
length of the connections from said indicator disc on the take-up roll, it may
happen that the main pattern chain is not started just at the time it ought to be,
and an extra pick or two is put in the fabric by the third pattern chain mechanism
before the main pattern chain is started, thus making an imperfection in the fabric.
The object of my present invention is to do away with indicator disc on the
take-up roll, and the connections therefrom to, the chain mechanisms above referred
to, and to provide a fourth pattern chain mechanism, which operates in connection
with the main pattern chain mechanism to start said mechanism instantly when
desired, that is to change on the pick.
The fourth pattern chain is also used in connection with the third pattern chain
as a multiplier chain, in the same way as the ordinary multiplier chain is used in
connection with the main pattern chain. For example, if the third pattern chain
is weaving stripes, by means of the fourth pattern chain, the stripes can be divided,
and additional stripes put in without increasing the length of the third chain.
My invention consists in certain novel features of construction and operation
of the several pattern chain mechanisms and intermediate connections, and more
particularly in combining with the main pattern chain mechanism the multiplier
pattern chain mechanism a third pattern chain mechanism and the shuttle box
shifting mechanism, a fourth pattern chain mechanism, as will be hereinafter
fully described.
I have shewn in the drawings my improvements annlied to a four by one drop
box loom, and combined with main,.and multiplier pattern chain mechanisms and
operating parts.
Referring to the drawings:
Fig. 1 shews a loom side, on 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 indicating mechanism shewn in Fig. 1, looking
in the direction of arrow a, Fig. 3.
Fig. 4 is a rear view of the box pattern indicating mechanism, looking in the
direction of arrow b, Fig. 3.
Fig. 3 is a plan view.
Fig. 5 is a vertical cross section on line C, C, Fig. 3, looking in the direction of

page_text: arrow a, same figure; the parts shewn at the left in Fig. 3; and some of the other
parts, are not shewn in this figure.
Fig. 6 is a vertical cross section on line d, d, Fig. 3, looking in the direction
of arrow a, same figure, and,
Fig. 7 is a vertical section on line e, e; Fig. 3, looking.in the direction of arrow a,
same figure.
1117
Figs. 2 to 7 inclusive are shewn on an enlarged scale.
:
¿
- 42
i
In the accompanying drawings, on the top of the loom side or end is supported.
the loom arch stand 1, on the upper part of which is secured the stand or frame 2,
on which are supported the several parts of my 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 carrying.
the main pattern chain 5, made up of links 6, which connect the bars 7, upon
which are mounted tubes 8 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.
:
2)
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 upon
the opposite side of the stand 2 from the main pattern chain cylinder, see Fig. 3.
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.
cylinder 11 is provided with a hand wheel 14, to turn said cylinder in either direc-
tion as desired.
The
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 provided 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 by reason of the open end
slots in the ends of the levers 17 and 18, can move up without raising said levers.
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 at its other end to the compound lever 26, which
operates the shuttle box lifter rod 27, all in the usual way.
A ratchet wheel 28 is mounted on the stud 4, and is secured to the main pattern
cylinder 3, see Fig. 3. 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 pro-
vided with concave portions 291 in its periphery, into which is adapted to extend
the convex portion 30 on the lock lever 30, pivoted at 31 on the frame 2, see.
Fig. 6, 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 33, see Figs. 3 and 7, which is secured to the multiplier pattern chain
cylinder 11. A stop wheel 34, see Fig. 3, is also mounted on said stud 12, and
secured to the ratchet wheel, to turn with said ratchet wheel, and is provided with
concave portions 34' in its periphery, into which extends a convex portion 35' on the
lock lever 35, pivoted at 351 on the frame 2, see Figs. 4 and 7. A 'spring 36
encircling a pin 36' sliding at one end in an eye 36", and secured at its other end
to the lock lever 35, see Fig. 4, acts, to hold said lever 35 in engagement with the.
stop wheel 34.
I will now describe my third pattern chain mechanism, combined with the main

page_text: pattern chain and the multiplier pattern chain mechanisms above described, and
the shuttle drop box shifting mechanism, and in this instance located at the front"
of the stand or frame 2, and in front of and in line with the multiplier pattern
chain 13.
On a stud 37 supported in the frame 2 and the bracket 2" 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. The pattern chain
cylinder 38 is provided with a hand wheel 40, to turn said cylinder in either
direction, as desired.
On the stud 37 of the third pattern chain cylinder 38 is mounted a ratchet
wheel 41, which is secured to said third pattern chain cylinder 38. A stop wheel 42
is also 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, in
which is adapted to extend a convex portion 431 on the lock lever 43, pivoted at 4311
on the frame 2, see Fig. 6, and connected by a link 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. 6.
On a stud 44 secured in a boss 45 on the frame 2 are loosely mounted the outer
weighted ends of two shuttle box indicator levers 46 and 47, which extend over and
are operated by the third pattern chain 39. The inner 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, and allow said rods 48 to move up with-
out raising said levers.
The lower ends of said rods 48 are attached to the vibrator levers 20 of the box
shifting mechanism above described, see Fig. 1.
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 third pattern chain 39, through con-
nector rods 48 attached to the vibrator levers 20, will also communicate motion to
said vibrator levers 20, to operate the box shifting mechanism.
I will now describe my fourth pattern chain mechanism.
On the stud 44 is loosely mounted a pattern chain cylinder 149 carrying the
fourth pattern chain 150, made up of links 6, bars 7, tubes 8, and rolls 9. On the
stud 44 of the pattern chain cylinder 149 is mounted a ratchet wheel 151, which is
secured to the pattern chain cylinder 149. A stop wheel 152 is also mounted on
said stud 44, and is secured to the ratchet wheel 151 to turn with said ratchet
wheel, and is provided with concave portions 152' in its periphery, into which is
adapted to extend a convex portion 1531 on the lock lever 153, pivoted at 154 on
the frame 2, see Fig. 6. A spring 155 is connected at one end to said lock lever 153,
and at its other end to a pin 156 on the frame 2, and acts to hold the lock lever
in engagement with the stop wheel 152, as shewn in Fig. 6.
I will now describe the mechanism for operating the main pattern chain 5,
multiplier pattern chain 13, and third pattern chain 39, and fourth pattern
chain 150.
In the lower central part of the frame 2, in a boss 51, is mounted a shaft 52,
see Figs. 3 and 6, 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 four pawls 55, 56, 57, and 158. 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 pattern chain
cylinder 38 and the third pattern 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 pattern chain cylinder 11,
and multipliér pattern chain 13.

page_text: The pawl 57 is pivoted 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 pattern chain cylinder and main pattern
chain 5.
The pawl 158 is pivoted on the upper end of the pawl carrying arm 54, and
extends over the pawl 56, see Figs. 3 and 6, and acts as a push pawl, engaging the
teeth on the ratchet wheel 151, to move said ratchet wheel, and with it the pattern
chain cylinder 149, and the fourth pattern chain 150.
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 60" leading out from a vertical slot 60 in the head 60 on the
upper end of the connector rod 61. The lower end of said connector rod 61 is con-
nected 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 61, 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, see Fig. 4, 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 the ordinary way, in
case the filling gives out, the connection 62 will be pulled to draw the head 60 of
the connector rod 61 to the right in Fig. 4, and move the screw or pin 59 out of the
notch 601 into the slot 60¹, 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, which
is secured at its other end to the arm 58, acts to hold the screw 59 in the notch 60¹¹
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, 56, 57, and 158, with their respective ratchet wheels, so that only one
pattern chain will be operated at a time, that is the main pattern chain, the multi-
plier pattern chain, the third pattern chain, and the fourth pattern chain, will be
operated at the proper time.
The stopping and starting of the pattern chains at the proper time is controlled
by indicator levers, extending over and operated by the pattern chains, and con-
necting mechanisms.
As before stated, the main pattern chain 5 is used to weave in the headings or
borders, and the mutiplier pattern chain 13 is used in connection with the main
pattern chain 5 to repeat certain bars of the main pattern chain, the main pattern
chain being at rest while the multiplier pattern chain is working, and the multi-
plier pattern chain being at rest while the main pattern chain is working.
The third pattern chain 39 is used for weaving the striped body of the fabric
between the headings, and the fourth pattern chain 150 is used in connection with
the third pattern chain 39 to repeat certain bars of said third pattern chain, said
third pattern chain being at rest while the fourth pattern chain is working, and
the fourth pattern chain being at rest while the third pattern chain is working.
It will be understood that of the four pattern chains, only one is working at the
same time.
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. 3, 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. 7, 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
-

page_text: from the weighted end 74' of the indicator lever 74; extending over the main
pattern chain 5 loosely mounted at its outer end on the stud 15, see Fig. 3.
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. 7, 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 weighted end 78¹ of the indicator lever 78,
extending over the multiplier pattern chain 13, and loosely mounted at its outer
end on the stud 44, see Figs. 3 and 7.
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' 75' 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 third 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 third pattern
chain 39.
The shield or guard 80 is pivoted at 81 on the stand 2, see Fig. 7. Said shield
or guard extends under the projecting end 55¹ of the operating pawl 55 of the
third pattern chain 39, see Fig. 3. Upon the opposite side of the pivot 81 of the
shield 80 is 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 exten-
sion 821, see Fig. 4, holds the shield 79 in its raised position with the rear exten-
sion 791 engaging with the upward extension 821 on the arm 82.
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. 3, to limit
the downward motion of said lever at its free end. The indicator lever 84 has a
downward extension 84' thereon, see Fig. 4, which is adapted to be engaged by an
indicator 86 on the main pattern chain.
The indicators which act on the indicator lever. 84 form a separator row. of tubes
and rolls between the heads or ends of the pattern cylinder, or as in this instance,
the indicators may be substituted for one of the tubes which extend into the
notches or grooves in the ends of the cylinder or barrel, see Fig. 3.
A link 87 connects the outer end of the indicator lever 84 with the arm 82,
forming a part of the shield 80, see Fig. 2.
An angle lever 88, see Figs. 6 and 7, is pivoted at 89 on the frame 2, and is
provided with a notched portion 881 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
lever 88 and to the stand 2, act to hold the arm 82 and the angle lever 88 in engage-
ment, as shewn in Figs. 6 and 7.
Upon the stud 144 is loosely mounted the outer end of the indicator lever 92,
see Figs. 2 and 3, which extends over. and is acted on by indicators. on the fourth
pattern chain 150.. On the inner end of the indicator lever.92 is hung the upper
end of a connector. 93, which has a vertical slot 931 in the lower end thereof, through
which extends loosely a screw. 112 secured in the end of the lower arm of the
angle lever 88, see Fig. 2.
In the revolution of the fourth pattern chain 150, when the pattern indicator 109

page_text: comes under the lever 92; said lever will be raised and with it the connector ór
arm 93, see Figs. 2 and 6, causing the angle lever 88 through the engagement of
the pin 112 thereon with said arm 93 to move on its pivotal support, and be disen-
gaged from the arm 82 of the shield 80, 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, and put said mechanism
into operation. At the same time, the shield 80 is raised to hold the pawl-55 out. of
engagement with the ratchet wheel 41 of the third pattern chain mechanism, to
stop said mechanism.
As soon as the pattern indicator 109 passes from under the lever 92, said lever
drops down at its free end, and with it the connector 93, the slot 931 in said con-
nector.93 allowing the connector to drop without moving the angle lever 88.
i. The revolution of the main pattern chain 5 brings, at the proper time, the pattern
indicator' 86 on said chain under the indicator lever 84, 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, and hold
it in its raised position, as shewn in Fig. 7. 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 third pattern chain mechanism, as shewn in
Fig. 7.:
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 engagement with the
ratchet wheel, by causing the shield 79 to lift the said pawl.
$
I will now describe the connections intermediate the third and fourth pattern
mechanisms by means of which they co-act, and the starting of one stops the other
and vice versa.
On the stud 44 is loosely mounted the end of an indicator lever 110, see Fig. 3,
the inner end of which extends over the third pattern chain 39, see Fig. 5.
Extending down from the indicator lever 110 is an extension 110', which has at
its lower end a boss 111 extending out at right angles therefrom, see Fig. 3. In
said boss is secured a pin 112, which extends into the open end slot in one end of
the shield or guard 113 centrally pivoted on the frame 2, see Figs. and 6. The
opposite end of the shield or guard 113 extends under the pawl 158, which engages
the ratchet wheel 151 to operate the fourth pattern chain 150.
It will be seen that in the revolution of the third pattern chain 39, when a roll 9
comes under the indicator lever 110, said lever will be raised, and move the
shield 113 on its pivotal support, and cause one end of said shield to be raised.
and the other end under the pawl 158 to be lowered, to allow said pawl 158 to drop
down and engage the ratchet wheel 151, to put in operation the fourth pattern
chain 150, as shewn in Fig. 4.
On the stud 144 is loosely mounted the outer end of an indicator lever 114, see
Fig. 3, the inner end of which extends over the fourth pattern chain 150. Extend-
ing out from the inner end of the indicator lever 114 is a pin 115, which extends
into the open end slot in one end of the shield or guard 116 centrally pivoted on
the frame 2, see Fig. 6.
The opposite end of the shield or guard 116 extends under the pawl 55, which
engages the ratchet wheel 41, to operate the third pattern chain 39.
It will be seen that in the revolution of the fourth pattern chain 150, when a roll
comes under the indicator lever 114, said lever will be raised, and move the
shield 116 on its pivotal support, and cause one end of the shield to be raised. and
the other end 'under the pawl 55 to be lowered, to allow said pawl 55 to drop down
and engage the ratchet wheel 41; to put into operation the third pattern chain 39.
The third and fourth pattern chains co-operate to weave the fabric according
to the pattern, the fourth pattern chain acting as a multiplier for the third pattern

page_text: chain, in the same manner that the first and second pattern chains cooperate to
weave the fabric, the second pattern chain acting as a multiplier for the first
pattern chain.
From the above description, in connection with the drawings, the operation of
my improvements in drop box indicating mechanism, in which four pattern chains
are used, will be readily understood by those skilled in the art, and briefly is as
follows:-
:―
Suppose the loom is running, with the third pattern chain 39 in operation, to
weave the striped body of a blanket between the headings or borders, in case a
blanket is being woven. The other three pattern chains will be at rest.
When a roll 9 on the third pattern chain 39 comes under the indicator lever 110,
see Fig. 3, said indicator lever will be raised, and through pin 112 engaging the
inner end of the shield 113, see Fig. 6, the outer end of said shield will be dropped,
to allow the pawl 158 to engage and operate the ratchet wheel 151 of the fourth
pattern chain 150.
The revolution of the fourth pattern chain 150 will bring a tube 8 on said pattern
chain under the indicator lever 114 and will cause said lever 114 to drop, and
through the pin 115 engaging the outer end of the shield 116, will raise the inner
end of said shield 116 (see Fig. 6), and raise the pawl 55 out of engagement with
the ratchet wheel 41 of the third pattern chain mechanism, so that the third
pattern chain 39 will stop:
The fourth pattern chain 150 will continue to run and repeat the bars of the
third pattern chain 39, until a roll 9 comes under the indicator lever 114. The
lever will then be raised, and through pin 115, the outer end of the shield 116
will be raised, and the inner end will be dropped, allowing the pawl 55 to engage
the ratchet wheel 41, and operate the third pattern chain 39, see Fig. 6.
The revolution of the third pattern chain 39 will bring a tube 8 under the
indicator lever 110, and through pin 112 engaging the inner end of the shield 113,
will raise the outer end of said shield, and raise the pawl 158 out of engagement
with the ratchet wheel 151 of the fourth pattern chain mechanism, and the fourth
pattern chain 150 will stop.
This operation will be repeated, according to the arrangement of the third and
fourth pattern chains, the fourth pattern chain acting as a multiplier for the third
pattern chain, and the two chains weaving the striped body of the fabric between
the headings or borders.
In the revolution of the fourth chain 150, when the indicator 109 thereon engages
the indicator lever 92, as shewn in Fig. 5, then said lever 92 will be raised, and
through connector 93, see Fig. 2, will rock the angle lever 88, and disconnect the
upright arm thereof from the extension 8211 on the arm 82, see Fig. 7, and allow
the outer end of said arm 82 to drop down, actuated by the spring 90, and with it
the shield 79, so that the pawl 57 can engage the ratchet wheel 28 and operate the
main pattern chain 5.
The lowering of the shield 79 and arm 82 raises the shield 80, which raises the
pawl 55 from engagement with the teeth of the ratchet wheel 41 of the third
pattern chain mechanism, and stops the third pattern chain 38, and a post or
stud 170, fast at its lower end on the outer end of the extension 55' of the pawl 55,
and extending under and engaging with its upper end the pawl 158, acts to hold
the pawl 158 out of engagement with the ratchet wheel 151 of the fourth pattern
chain mechanism, so that the movement of the pawl carrying arm 54 to the right,
Fig. 6, will not operate the fourth pattern chain 150.
The main pattern chain 5 will continue to operate, until a roll 9 comes under
the lever 84, which will raise said lever, and through pin 73 thereon engaging the
arm 71 of the shield 71, (see Fig. 7), lower said shield 71, and allow the pawl 56
to drop and engage the ratchet wheel 33 to operate the second or multiplier pattern
chain 39. The revolution of the chain 39 will bring a tube 8 under the lever 78,
see Fig. 7, and through the pin 77 on said lever engaging the arm 75

page_text: of the shield 75, will raise said shield 75, and disengage the pawl 57 from the
ratchet wheel 28, so that the main pattern chain 5 will stop.
When in the revolution of the second pattern chain 39, a roll 9 comes under the
lever 78, (see Fig. 7), the shield 75 is lowered, allowing the pawl 57 to operate the
main pattern chain 5, and this operation is repeated as desired, the second pattern
chain 39 acting as a multiplier for the main pattern chain 5 in weaving the headings
or borders of the goods.
"
When in the revolution of the main pattern chain 5 the indicator 86 thereon
comes under the lever 84, it will raise said lever, and through link 87 will raise
the arm 82 of the shield 79, to allow the spring 91 to act and draw the vertical
arm of the angle lever 88 under the arm 82. The raising of the arm 82 will raise
the shield 79, to disengage the pawl 55 from the ratchet wheel 28, and stop the
main pattern chain 5, and at the same time lower the, shield 80 to allow the
pawl 55 to engage the ratchet wheel 41, and operate the third pattern chain 39.
The lowering of the shield 80 and the pawl 58 will through pin 170 lower the
pawl 158, so that it will engage the ratchet wheel 151, and move the fourth pattern
chaim 150 once, on the movement of the pawl carrying arm 54 to the right, Fig. 6.
The movement of the pawl carrying arm 54 to the left, Fig. 6, will move the third
pattern chain 39, and bring a tube under the indicator lever 110, to raise the
shield 113, and thus hold the pawl 158 out of engagement with the ratchet wheel 151,
and prevent the turning of the fourth pattern chain 150 on the return movement
of the pawl carrying arm 54 (Fig. 6) to the right.
The third pattern chain 39, and the fourth pattern chain 150 will then operate,
as above described, to weave the striped body of the goods.
It will be seen that the four pattern chains all co-operate, and the stopping of
one starts another, etc.
It will also be seen, that when the indicator 109 on the fourth pattern chain 150,
in the revolution of said chain, comes under the lever 92, the shield 79, through
connector 93 and angle lever 88 is instantly dropped, to allow the pawl 57 of the
main pattern chain mechanism to put into operation the main pattern chain 5,
and this change is made instantly, or on the pick, without any possibility of an
extra pick or two being put into the fabric before the main pattern chain 5 starts.
It will be understood that the details of construction of my improvements may
be varied if desired, and they may be used to weave different kinds of textile fabrics.
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 of the class described, the combination with a main pattern
chain mechanism, a second or multiplier pattern chain mechanism, intermediate
connecting mechanism, and mechanism for operating said two pattern chain mech-
anisms, of a third pattern chain mechanism, and a fourth pattern chain mechanism,
and intermediate connecting mechanism, and mechanism for operating said third
and fourth pattern chain mechanisms, and mechanism intermediate and connecting
the fourth pattern chain mechanism with the main pattern chain mechanism, to
put into action the main pattern chain mechanism from the fourth pattern chain
mechanism, substantially as shewn and described.
Secondly. In a loom of the class described, the combination with a main pattern
chain mechanism, a multiplier pattern chain mechanism, and a shuttle drop box
shifting mechanism, and connections between the main pattern chain mechanism
and the box shifting mechanism to operate said box shifting mechanism from the
main pattern chain, of a third pattern chain mechanism, a fourth pattern chain
mechanism, and connections between said third pattern chain mechanism and the
shuttle drop box shifting mechanism, to operate said box shifting mechanism from
the third pattern chain, and connections between the fourth pattern chain mechan-
ism and the main pattern chain mechanism, to start the main pattern chain
mechanism from the fourth pattern chain mechanism, substantially as shewn and
described.

page_text: Thirdly. In a loom of the class described, the combination with a main pattern
chain mechanism, a multiplier pattern chain mechanism, and intermediate con-
necting mechanism, and mechanism for operating said pattern chain mechanisms,
of a third pattern chain mechanism, a fourth pattern chain mechanism, and inter-
mediate connecting mechanism, and mechanism for operating said third and fourth
pattern chain mechanisms, intermediate mechanism connecting the third nattern
chain mechanism with the main pattern chain mechanism, and intermediatè
mechanism connecting the fourth pattern chain mechanism with the 'main pattern
chain mechanism, to. automatically put into action the main pattern chain mech
anism from the fourth pattern chain mechanism, substantially as shewn and
described..
Dated this 19t
1 ..
Li
..: 12.1:
3.
1000