Improvements in Automatic Stopping, Correcting, and Re-starting Mechanism for Looms.
Year: 1899

page_text: Date of Application, 13th Apr., 1899-Accepted, 1st July, 1899
COMPLETE SPECIFICATION.
[Communicated from abroad by UNIVERSAL LOOM COMPANY, a Corporation duly
incorporated under the laws of the State of New Jersey, and having its
principal place of business at 27, William Street, New York, United States
of America, Manufacturers.]
Improvements in Automatic Stopping, Correcting, and Re-starting
Mechanism for Looms.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, 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 folowing statement:
The improvement in looms forming the subject of this invention resides in
automatic mechanism, which, whenever a weft-thread breaks or runs out, stops
the operative parts of the loom, ejects the shuttle from the box in which it has
come to rest, introduces into said box another shuttle with a properly threaded
weit, and then restarts the operative parts of the loom.
"
The operative parts" of the loom thus referred to are the weaving instru-
mentalities, and it is believed that the automatic stopping of these instrumentalities
upon the occurrence of a defect in their operation followed by the automatic
correction of such defect and the subsequent automatic restarting of the weaving
instrumentalities, is entirely new.
Hence the present invention in its broad aspect, consists of the weaving
mechanism of a loom, including a stop-motion for stopping the weaving mechanism
upon the occurrence of a defect in its operation, in combination with a correcting
mechanism acting automatically to correct such defect when the weaving mechanism
is thus stopped and a re-starting mechanism acting automatically to restart the
weaving mechanism into operation when such defect has been corrected.
It will be understood that the invention is not limited to the exact mechanism
or means herein shown for accomplishing the described results, for, as will be
obvious to those skilled in the art, the said results might, without departure
from the broad invention, be automatically accomplished by the employment of
forms of mechanical devices other than those herein shown.
The
Thus in the present case the broad invention is illustrated in connection with a
weft stop-motion. The particular defect requiring correction being that which
arises from the breaking or running out of the weft-thread, either of which
casualties results in automatically stopping the weaving instrumentalities of the
loom and concurrently tripping into action the correcting mechanism.
correcting mechanism being in this case illustrated by the described means for
ejecting from the lay the shuttle containing the more or less spent weft bobbin,
and inserting into the lay a shuttle containing a full weft bobbin; the re-starting
mechanism for restarting the weaving instrumentalities being automatically set
in action at the conclusion of the performance, by the correcting mechanism, of
the correcting function.

page_text: The accompanying drawings represent portions of an upright loom resembling
that shown and described in prior Patent No. 13269, dated June 14, 1898, but
containing mechanism embodying an illustration of the present invention. Of
the drawings:
:
Figure 1 is a broken out top view of the loom partly in section.
Figure 2 is a transverse vertical section of the loon taken through the plane
indicated by the dotted line - on Figure 1.
Figures 3 and 4 are detail drawings of the brake mechanism; Figure 3 showing
the brake-strap released from the brake-wheel, and Figure 4 showing the brake-
stop engaging the brake-wheel.
Figure 5 is a broken out rear view of a portion of the loom affording a view in
elevation of the shuttle-changing mechanism.
Figure 6 is an elevation of a portion of the end of the loom affording a face
view of the cams for operating the shuttle-changing devices.
Figure 7 is an elevation partly in section showing details of the safety stop
for preventing the operation of the shuttle-changing mechanism in case the lay
has not come to rest in the proper position.
Figure 8 is a detail showing in elevation the positions of the shuttle-changing
cams at an early stage in the shuttle-changing operation.
Figure 9 is a similar elevation illustrating the positions of the parts at a later
stage in the shuttle-changing operation.
Figure 10 is a transverse section taken through the vertical plane indicated
by the dotted line y-y on Figure 5, showing details of the restarting devices.
Figure 11 is a perspective view of mechanism for controlling the supplemental
driving-belt which operates the shuttle-changing mechanism.
The successful accomplishment of the results sought for in the present invention
requires the presence in the loom of a stopping mechanism susceptible of being
tripped into action by the breaking or running out of the weft-thread and adapted
to invariably bring the operative parts of the loom to rest with the shuttle and
lay in prescribed positions. For effecting these results there may be employed
a weft stop motion and brake mechanism substantially like those shown and
described in said prior Patent No. 13269 dated June 14, 1898.
As will be seen, the drawings show portions of an upright loom frame composed
in part of the standards A A' and the horizontal members B B1 B2 B3. The main
driving shaft C is provided with the driving pulley C¹ and the loose pulley (2
to the hub of which is secured the supplemental pulley C³. The position of the
main driving-belt is governed by the belt-shifter 1) carried at the rear end of
the horizontal slide-bar D', which, at its front end, is pivoted to the hand-lever D².
The lever 12 has attached to it the free end of a contracting spiral spring D³, the
opposite end of which is secured to the loom-frame.
When the loom is running normally the main driving-belt, as shown in Figure 1,
is retained in engagement with the driving-pulley C by means of the main trip-
lever E pivoted at the rear end to the frame of the loom and having near its
forward end a shoulder E¹ which engages the shoulder D on the slide-bar D'.
When the hand-lever D2 is swung outward into the position in which it is
represented in Figure 2, the finger F, projecting laterally from its hub, engages
and lifts the radius arm F1, which is loosely hung on the main driving-shaft C
and which is constantly subjected to the downward pull of the contracting spiral
spring F2, having its upper extremity connected with the free end of the radius
arm F, and its opposite extremity secured to the pin affixed to the frame of
the loom. The radius arm FI has affixed to it the end Ft of the brake-strap F³,
which surrounds the greater part of the brake-wheel F and has its opposite end Fi
connected to the adjustable clamp FS attached to the frame of the loom.
A screw-bolt F9 is inserted through a vertical aperture in the arm F connected
with a stationary part of the loom. A jam-nut F serves to hold the screw-bolt F
in position. The brake-strap is completely cleared from the brake-wheel by
collision with the bolt Fº whenever the brake-releasing mechanism is actuated.

page_text: When the radius arm F¹ is oscillated to release the brake the portion of the
brake-strap adjacent to its free end, that is, the end attached to the arm '', after
moving clear from the brake-wheel encounters the stop presented for it by the
lower end of the screw-bolt F, from which it results that the brake-strap, which
is a flexible metallic band, is made to spring into a position in which it is
approximately concentric with the periphery of the brake-wheel and is wholly
cleared therefrom.
The device of a stop arranged near the free end of the brake-strap to deflect
the brake-strap when released into a position approximately concentric with the
brake-wheel, is important, not only because it prevents the heating which would
be caused if any portion of the brake-strap were permitted to be in contact with
the brake-wheel while the loom is running but also because it facilitates the
nearly simultaneous application to the brake-wheel of the entire operative portion
of the brake-strap.
The relative positions of the members of the brake mechanism when the loom
is in normal operation are indicated in Figure 3.
The stopping of the loom involves the lifting, either manually or otherwise, of
the forward end of the main trip-lever E. This disengages the shoulder El from
the shoulder 1 and thus releases the belt-shifter slide-bar D to the action of
the contracting spring D. The spring D³ then pulls the slide-bar D' backward
and shifts the belt to the loose pulley C, and at the same time swings backward
the hand-lever D³, swinging downward the finger F, and thereby releasing the
radius arm F to the influence of the spring F2. The brake-strap is thereby
tightened around the brake-wheel in part by the contractile force of the spring F,
and in part by the frictional influence upon the brake-strap of the periphery of
the brake-wheel which rotates (as indicated by the curved arrow on Figure 4) in
such direction as to make that frictional influence tend to pull the brake-strap
away from its fixed end F and thus cause it to tighten itself upon the brake-wheel.
The effectiveness of the brake-strap thus organized is such that by varying the
position of the adjustable clamp F8 the operative stress of the spring F2 can be
so regulated with relation to the speed at which the loom is running as to always
effect the stopping of the loom at the expiration of a predetermined period after
the belt-shifter and brake-strap have been released by the tripping of the main
trip-lever E, and the loom can thus always be brought to rest with its parts in
a prescribed position. The tripping of the main trip-lever E is automatically
effected by the operation of the herein described weft stop motion whenever a
weft thread breaks or runs out.
The weft stop motion embraces the weft fork G, pivoted to the front end of the
lever G, which is affixed to the rock-shaft G2, having its bearings in brackets
attached to the loom frame. An adjustable screw-bolt G+, extending upward from
the girder B, acts as a stop to limit the range of downward swing of the lever G¹.
The link G, connected at its upper end to the lever G¹, is provided near its lower
end with the longitudinal slot Go for admitting a pin G7 affixed to and projecting
laterally from the trip-lever E.
When the lay ascends, the weft thread, if present, is carried into collision with
the lower end of the weft fork G and thereby tilts the weft fork out of the position
in which it is represented in Eigure 2, thus clearing the backwardly turned
finger G8 of the shank of the weft fork from the path of motion of the free end
of the constantly vibrating lifting arm H, which is secured to one end of a rock-
shaft H mounted in a bracket projecting laterally from the loom-frame. The
opposite end of said rock-shaft has secured to it a shorter arm H2, which is
pivotally connected with the upper end of the link H³, the lower end of which is
engaged by the crank-pin H projecting from the head H³ affixed to the end of the
shaft H upon which the main cams of the loom are mounted.
The vibrations of the lifting arm H are so timed that the latter part of the
upward excursion of its free end is coincident with the beat which ensues
immediately after the shuttle I has been boxéd in the shuttle box I¹ adjacent

page_text: to the fork G. If the weft thread has run out, or has been broken, the weft-fork,
under the influence of gravity, retains the position in which it is represented in
Figure 2, so that its backwardly turned finger G8 will be caught by the free end
of the lifting arm H. Thus during the concluding part of the upward movement
of the free end of the arm H, the fork G will be carried upward, thereby so
vibrating the lever G₁ as to effect the disengagement of the trip-lever E from the
shoulder D on the slide-bar D₁. The belt-shifter and brake being thus released
to the influence of their respective springs will bring the operative parts of the
loom to rest by the time the lay K has reached its lower position. During this
time the shuttle will be thrown from the box I¹ into the box at the opposite end
of the lay, which is its appropriate position for submission to the action of the
shuttle-changing mechanism. After the fork has been carried upwardly sufficiently
to trip and release the slide-bar D¹ the continued movement of the free end of
the lifting arm H will cause the upper end G of the shank of the fork to be
carried into collision with the cam-shaped edge of a plate G10 affixed to the frame
of the loom, which will effect the disengagement of the finger G8 from the free end
of the lifting arm H just before the complete stoppage of the loom. Consequently,
the rock-shaft G2 is released to the influence of a coil-spring G tending to restore
the parts connected with the said rock-shaft to their normal position for the
automatic restarting of the loom by the shuttle-changing mechanism.
The mechanism for automatically supplying the filling embraces the vertical
shuttle magazine a, adapted to contain a plurality of shuttles. Each shuttle is
intended to contain a full bobbin or cop a' of weft, the free end a of which is
led from the pot-eye (or guide-eye, frequently made of porcelain, for guiding the
thread or yarn from the bobbin to the exterior of the shuttle) through the open
side of the shuttle magazine, and is given several turns around the pin b
projecting from the loom frame.
Beneath the magazine is a transferrer c which is adapted to be reciprocated
in a horizontal plane. On its front side the transferrer c is provided with the
inwardly turned arms et c¹ forming the end boundaries of a shuttle-receiver c²,
which, when the transferrer occupies its normal position, is immediately beneath
the shuttle magazine, so that the lowermost shuttle in the magazine will drop
into it.
At the appropriate time the transferrer c is moved forward to deliver to the
lay the shuttle contained in the shuttle-receiver 2. Endwise sliding-rods ³ ³
are supported on the under side of the transferrer and under the influence of
the springs are made to project across the bottom of the receiver and thus
serve to sustain the shuttle therein until at a prescribed stage in the forward
excursion of the transferrer c the arm c5, affixed to and projecting downwardly
from a cross-bar secured to their rear ends, is brought into collision with a stop
consisting of the collar on the horizontal bar 12 (see Figure 5), which operates
to detain the rods ³ ³ and permits the shuttle to be delivered from the receiver_c²
to the lay. As the transferrer moves backward the rods ³ ³ are released to the
influence of the springs c c and thus made to resume their positions across the
bottom of the receiver 2 in time to act as supports for the next shuttle dropped
into the receiver ca.
When the weft stop-motion is acting to trip the main belt-shifter and brake,
motion is transmitted from the radius arm d, affixed to the rock-shaft G, through
the link to the rock-lever e which is loosely mounted on a supplemental cam-
shaft f, and provided with a laterally extending pin e¹ to engage a shoulder e² of
a gravity pawl e and raise the latter clear of the shoulder et formed on the
slide-bar e
The slide-bar e is mounted in a bracket e, affixed to the loom frame and is
provided with a belt-shifter e to govern the position of a supplemental driving-
belt es, which operates the shuttle-changing mechanism.
A contracting spiral spring e has one end secured to the bracket e and its
opposite end to the slide-bar e. When the pawl e³ is raised the spring e pulls

page_text: the slide-bar into position to set the shuttle-changing mechanism into
operation.
A radius arm el, swayed on the shaft by the shuttle-changing mechanism
during the final portion of its operation, as hereafter described, catches a pin ell
projecting from the slide-bar and thereby moves the slide-bar e back into
position to be re-engaged by the pawl e³. The slide-bar e has adjustably affixed
to its rear end a curved strip of resilient material e¹2 carrying at its free end a
suitable brake-block e¹³ for preventing the motion of the shuttle-changing
mechanism after the supplemental driving-belt has been shifted.
A worm-wheel f¹ affixed to the cam-shaft f is engaged by a worm secured
to the supplemental driving-shaft f mounted in a tubular bracket f affixed to
the loom frame. Upon the supplemental driving-shaft 3 is a fixed pulley f5 and
alongside of it a loose pulley f6, the latter being loosely mounted upon the turned
down portion f of the tubular bracket ft.
The supplemental driving-belt normally engages the fixed pulley f and
extends to and around the pulley C³ secured to, or formed integrally with, the
main loose pulley C, from which motion is derived to operate the shuttle-changing
mechanism and automatically restart the loom whenever the main belt is shifted
to the main loose pulley by the operation of the weft stop-motion.
It will be seen that whenever the main belt is shifted otherwise than by the
operation of the weft stop-motion, the shuttle-changing mechanism remains
unaffected.
During the normal operation of the loom, while the cam-shaft f is being
prevented from rotation by the engagement of the pawl e³ with the shoulder e*,
the supplemental driving-belt is held on the loose pulley f. The supplemental
cam-shaft makes one complete revolution, during which the cams mounted
upon it perform their various functions in effecting the discharge of the shuttle
from the box in which it has come to rest, and the introduction of another
shuttle in its place.
During a prescribed part of the concluding portion of the rotation of the
supplemental cam-shaft f the restarter g, which is a radius arm affixed to the
said shaft f, by engaging the radius arm g¹ affixed to the horizontal rock-shaft,
imparts a rocking motion to the said rock-shaft g2 and corresponding swaying
motions to the radius arms e¹0, 93 and g, which are also affixed to the rock shaft g³.
The function performed by the radius arm 10 when thus swayed is the moving
back of the slide-bar e as hereinbefore mentioned.
The radius arm g³ is provided with a slot g³ which, when the radius arm y³
is thus swayed, by its engagement with a pin affixed to and projecting from
the main belt-shifter D, pushes the slide-bar D₁ forward and by thus shifting the
main belt and loosening the brake-strap from the brake-wheel, restarts the
operative parts of the loom.
The radius arm g when thus swayed serves as a dog which by engaging a
shoulder g' on the cam j positively prevents the rotation of the shuttle-changing
mechanism during the normal operation of the weaving instrumentalities. Such
rotation will ordinarily be prevented by the brake e¹³, but the radius arm g' may,
if desired, be employed for abundant caution.
The parts are so timed that the shoulder E¹ of the trip-lever E drops behind
the shoulder D on the slide-bar D' and the pawl e drops behind the shoulder c'
on the slide-bar just before the restarter y clears the radius arm g¹, thereby
keeping the operating parts of the loom in action until the main belt-shifter and
brake are again tripped. In the meantime the brake-block e¹³ having been carried,
by the slide-har into contact with the face of the fixed pulley f5, arrests the
rotation of the cam-shaft f, which remains stationary until again set in motion in
consequence of the absence of a weft thread as described.
It is essential that the restarter g shall continue its swaying movement to some
extent after having effected the restarting of the loom in order that the radius
arm may be free to be swayed into the position in which it is indicated in
dotted lines in Figure 10. The supplemental driving-belt 8 will have been

page_text: shifted by this time on to the loose pulley f", but the vis inertiae of the moving
parts suffices to furnish the small amount of force needed to prolong the rotation
of the shaft until the free end of the restarter g has been carried around beyond
the path of motion of the free end of the radius arm gl so that the radius arin.g
will not encounter the restarter when again swayed by the rock-shaft g2 the next
time the shuttle-changing mechanism is started into operation. At appropriate
stages in the single revolution of the cam-shaft f the shuttle-changing cams
thereon perform their several functions in due order, as follows:
First, the "clearer cam operates to bring about the clearance of the path
through which the spent shuttle is ejected from, and a shuttle with a full bobbin
of weft is subsequently introduced into, the shuttle box at the end of the lay
in front of the shuttle magazine. This is effected by the appropriate rocking of
the bell-crank lever ', loosely mounted on the fixed bar 2. The cam-follower h³,
at the rear end of the bell-crank lever h', is made to constantly bear upon the
cam by the suitably strong torsion spring ht, having one of its extremities fixed
to the bell-crank lever 1, and the other to the bar h². When the cam-follower h³
drops upon the depressed part of the cam h, the finger at the forward end of
the bell-crank lever swings backward. When the lay is down, the finger h³
occupies a position which enables it in its backward swing to engage the laterally
projecting shoulder, or bend, 4 at the rear end of the horizontal reciprocable
shaft, loosely mounted upon the underside of the lay, and subject to the
influence of the retracting spring 8. A finger ", affixed to and projecting
upwardly from the shaft h', is adapted to engage an arm ho, affixed to the binder,
or spring cheek h", which is one of the appurtenances of the shuttle stop-motion
with which the loom is equipped. The lower part of the rear wall of the shuttle
box is recessed to contain the binder so that the shuttle when being lowered into
the box will not encounter any part of the heel of the binder.
At its forward end the shaft h is pivotally connected with the crank-arm ¹2
projecting downwardly from a rock-shaft 13, in connection with which the said
retracting spring his arranged. The rock-shaft h¹³ is mounted in bearings upon
the front side of the lay and is provided with two upwardly extending arms h¹+ h¹,
suitably engaging slots in the arms his h¹5, affixed to the movable cap 16, which,
when the parts are in normal position, projects partially over the shuttle box.
When the finger swings backward, the binder is removed from the rear wall
of the shuttle box while the cap 16 is moved forward so that it no longer overhangs
the shuttle box.
The path being thus cleared, the next step is to eject the spent shuttle. This
function is performed by the ejector-cam i, which, at the proper time, rocks
upward the ejector-arm 2, carrying the cam-follower, which is made to con-
stantly bear against the cam by the influence of gravity upon the ejector-arm ¹.
At its forward end the arm ¹ is bifurcated to form the two lifters 33, which,
when the arm rises, enter through the usual slot in the bottom of the box
in which the spent shuttle is contained, and elevate the spent shuttle into position
to be pushed off sidewise over guide strips into a box ¹s by the forward end
of the, transferrer c during the latter part of the forward movement thereof.
Preferably the cam i is so shaped as to retain the lifters at the level repre-
sented in Figure 9, so that the shuttle contained in the receiver c² will be lodged
upon the tops of the lifters 3, and be thereafter gradually lowered into the
shuttle box as the arm 2,-under the influence of gravity, is permitted to fall by
the cam.i.
The timely forward movement of the transferrer c, enabling it to knock off the
spent shuttle from the lifters 23, is effected by the feed-cam j, which acts upon
the cam-follower carried by the arm j, loosely mounted upon the stationary
bar h2, and having affixed to it one end of a suitably strong torsion spring ³, the
opposite end of which is affixed to the bar h².
carries the roller which engages a vertical groove jo in a bracket 7, affixed to
At its upper end the arm t
the under side of the. transferrer .c.

page_text: The inner side of the transferrer is provided with a downwardly projecting
flange, adapted to slide in the horizontal guide formed in the inner upright
member of the supplemental frame in which the shuttle-changing mechanism
is mounted. The said frame consists of the inner upright member k which is
secured to the standard A¹ of the main frame, as shown in Figure 6, and which
is united to the outer upright member by the horizontal bar hand. by the
horizontal bar. The bar affords the axis for the ejector-arm . The upright
member carries the horizontal stud 3, affording the axis for the roller sup-
porting the outer side of the transferrer c.
The cam is provided with a concentric portion for the purpose of detaining
the transferrer c in its forward position for a sufficient length of time to permit
the new shuttle to be lowered from the receiver to the shuttle box...
Care has thus been taken to describe certain features of the loom which do not
of themselves constitute part of the present invention, because the shuttle-
changing operation is performed while the operative parts of the loom are at
rest in prescribed positions, and it hence follows that the instrumentalities for
stopping the operative parts of the loom must, so far as possible, operate to bring
about such stoppage with the lay down and with the shuttle in the box at the
end of the lay in front of the shuttle magazine.
If, however, from any cause the lay should not come to rest in the proper
position, there is provided a safety device for preventing the shuttle-changing
mechanism from acting. For this purpose there is pivoted to a bracket 1, secured
to the loom frame, a lever whose lower end is engaged and rocked by a wiper-
cam projecting from the face of a collar 13 affixed to the supplemental cam-
shaft f. A contracting spiral spring having one end secured to the extension
of the lever 1, and its outer end secured to the extremity of the shank. 16 of the
inverted T-lever tends to rock the lower end of the lever against the
supplemental cam-shaft f.
An arms, projecting laterally from the lever ', is pivotally connected to a
lever whose lower end is provided with an adjustable stop comprising a screw-
bolt 10 secured in a threaded aperture by a jam-nut ". This stop engages an
arm extending from the slide-bar e and is held normally in contact therewith
by means of a contracting spiral spring 13, one end of which is secured to an
arm of the lever and its opposite end to a finger projecting upward from the
arm The lower end of the lever 19 will therefore partake of the to and fro
motions of the slide-bar and its upper end will be rocked between two positions,
one of which is shown by full lines and the other by dotted lines in Figure 7. ·
The inverted T-lever is pivoted between its ends to the bracket and one
of its arms 15, under the influence of the spring 14, may rest upon a stop 716, in
which case the extremity of the arm 15 intersects the path of motion of the upper
end of the lever 10, as shown by the dotted lines in Figure 7. The end of the
opposite arm 17 of the lever 17 is adapted to be engaged by a toe (18 secured to
the lay so that when the lay is within about 3/16 of an inch of its lowermost position
the end of the arm 15 will have been rocked upward out of the way of the lever 1.
Should the lay not be in its proper position when the loom stops and the slide-
bar eis tripped the relative positions of the adjacent ends of the arm 15 and
the lever will be as indicated by the dotted lines in Figure 7.
Under these circumstances, as soon as the shuttle-changing mechanism begins
to move, the wiper-cam will rock the lever, by the pull of which the upper end
of the lever will be carried against the end of the arm 715, which then becomes
the fulcrum of the lever 79, so that by the continued pull of the lever ¹ the lower
end of the lever 79 is made to move the slide-bar e back and thereby shift the
supplemental driving-belt to the loose pulley f6 and prevent further movement
of the shuttle-changing mechanism.
If the lay be in proper position the arm 715 will be swung out of the way so
that the upper end of the lever will be left free to swing instead of the lower
end, with the result that the shuttle-changing mechanism will not be interfered with.

page_text: For abundant caution in case the described safety device should fail to act
properly, there is provided a protector consisting of a hinged blade m mounted
between lugs m¹ formed on the front edge of the transferrer c and free to turn
in one direction against a spring m2. If the lay is not in proper position, the
front edge of the blade m will be carried into collision with a stop m³ affixed to
the lay. Such collision prevents further forward movement of the transferrer c
and compels the supplemental driving-belt e to slip until it runs off the pulley
which drives it.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, as communicated to me by my
foreign correspondents, I declare that what I claim is:
1. In a loom, instrumentalities for temporarily bringing the operative parts of
the loom to rest with the lay and shuttle in prescribed positions; instrumentalities
adapted to act while the operative parts of the loom are thus at rest for auto-
matically discharging the shuttle from the lay and introducing into the lay another
shuttle, and then restarting the operative parts of the loom, and means operative
upon the failure of the weft to trip said instrumentalities into action.
2. In a loom, driving mechanism for driving the operative parts of the loom;
means operative upon a failure of the weft for temporarily bringing the operative
parts of the loom to rest with the lay and shuttle in prescribed positions; instru-
mentalities adapted to act while the operative parts of the loom are thus at rest,
for discharging the shuttle from the lay, for introducing another shuttle into
the lay, and for then restarting the operative parts of the loom; supplemental
driving mechanism for driving said instrumentalities, and a pawl normally hold-
ing said supplemental driving mechanism at rest, and means operative upon a
failure of the weft to temporarily release said supplemental driving mechanism
into action.
3. In a loom, a shuttle magazine; a lay; means acting upon a failure of the
weft to bring the operative parts of the loom to rest with the lay down and the
shuttle in the box at the end of the lay nearer the magazine; instrumentalities
also acting upon a failure of the weft and while the operative parts of the loom
are thus at rest to automatically discharge the shuttle from the lay, to transfer
from the magazine to the lay another shuttle, and to then restart the operative
parts of the loomi.
4. In a loom, means acting upon the failure of the weft to bring the operative
parts of the loom to rest with the lay and shuttle in prescribed positions; shuttle-
changing mechanism and mechanism acting to restart the operative parts of the
loom when the operative parts of the loom are thus at rest and consisting of the
following instrumentalities, viz. a supplemental cam-shaft; a clearer-cam mounted
on said cam-shaft; means for withdrawing the binder and shuttle box cap from
their normal positions with relation to the box containing the shuttle which is to
be discharged, and operative connections therefrom to said clearer-cam; an
ejector-cam mounted on said cam-shaft; lifters for lifting upward the shuttle
to be discharged from the shuttle box operative connections from said lifters to
said ejector-cam; a feed-cam mounted on said cam-shaft; a reciprocable trans-
ferrer having a feeding movement for knocking the spent shuttle from said lifters
and for supplying a fresh shuttle for introduction into the lay; connections
between said transferrer and said feed-cam for imparting said feeding movement,
and means for imparting the reverse movement to said transferrer; a restarting-
cam mounted on said cam-shaft and connections therefrom to the belt-shifter-bar
of, the loom for moving said shifter-bar into position to effect the restarting of
the operative parts of the loom.
5. In a loom, a main driving mechanism for driving the operative parts of the
loom; a shuttle-changing mechanism; a supplemental driving mechanism, opera-

page_text: tive when said main driving mechanism is at rest, for actuating said shuttle-
changing mechanism and then restarting the said main driving mechanism;
a tripper for tripping said supplemental driving mechanism into action, and a
weft stop motion for stopping said main driving mechanism and actuating said
tripper whenever a weft thread breaks or runs out.
6. In a loom, a main driving shaft for driving the operative parts of the loom;
means including a spring-actuated belt-shifter for stopping the rotation of said
main driving shaft; shuttle-changing mechanism adapted to act when said main
driving shaft is at rest; a normally stationary supplemental driving shaft pro-
vided with a fast and loose pulley; a supplemental cam-shaft geared to said supple-
mental driving shaft and operative during a single revolution for driving said
shuttle-changing mechanism; connections from said supplemental cam-shaft to
said belt-shifter for restarting said main driving shaft during the concluding
portion of the operative revolution of the said supplemental cam-shaft; a pawl
for normally preventing the rotation of said supplemental cam-shaft while said
main driving shaft is in motion; a supplemental driving belt adapted to bear
upon said fast and loose pulleys and to slip on said fast pulley when said supple-
mental cam-shaft is prevented from rotation by said pawl, and means operative
upon a failure of the weft for releasing said belt-shifter to the action of its spring
and stopping the rotation of said main driving shaft and for concurrently tripping
said pawl and allowing said supplemental driving shaft to make one revolution.
7. In a loom, in combination as herein set forth, weaving instrumentalities;
a stop-motion for stopping said weaving instrumentalities in prescribed positions;
shuttle-changing mechanism and a protector for preventing the operation of said
shuttle changing mechanism if the said weaving instrumentalities are not in
said prescribed position.
8. In a loom, a main driving mechanism for driving the weaving instrumentali-
ties of the loom, a stop-motion for stopping the operation of said instrumentalities
upon the occurrence of a defect in the operation thereof; a correcting mechanism
for correcting such defect and restarting mechanism for restarting the said weaving
instrumentalities; a supplemental driving mechanism, operative only when said
weaving instrumentalities are at rest, for driving said correcting and restarting
mechanism; means for subjecting said correcting and restarting mechanism to
the action of said supplemental driving mechanism concurrently with the stopping
of said weaving instrumentalities by said stop-motion, and means for throwing
said supplemental driving mechanism out of action concurrently with the restart-
ing of said weaving instrumentalities.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.