Improvements in or relating to Loom Shuttle Box Motions.
Year: 1890

page_text: Date of Application, 15th Aug., 1890
Complete Specification Left, 14th May, 1891-Accepted, 15th Aug., 1891
PROVISIONAL SPECIFICATION.
[Communicated from abroad by FRED LACEY, of Adams, Massachusetts, United
States of America, Manufacturer.]
Improvements in or relating to Loom Shuttle Box Motions.
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 to be as follows:--
The invention herein described relates to that part of a loom mechanism known
as "box motions" which comprises the parts used in changing the shuttle boxes to
bring different ones into operation in the process of weaving.
The advantages gained over the mechanisms now in use for that purpose are
a combining of certain motions for raising and lowering the different boxes,
starting with the favorite "crank motion" that is, easily and moderately, and
stopping in the same manner, thereby avoiding the shocks that interfere with
high speed. Also in ensuring positive motion and support of the parts after
motion so that the operating parts cannot be reacted upon by the shuttle boxes,
or motion of other parts of the loom and moved out of place; and in having
as few working joints in the parts between the box operating mechanism proper
and the shuttle boxes, the wear of which from use would create an uncertainty
of action. It also provides for stopping the chain feed by the weft motion when
the loom stops to prevent the pattern chain from overrunning; and an arrange-
ment of the mechanism between the "box-motion and the boxes, to prevent.
injury by any obstruction to the proper motion of the boxes.
"
My invention comprises the usual end frame and four shuttle boxes supported by
a rod, a lower or cam shaft is arranged in the frame to the end of which is
attached a gear wheel hereinafter termed the first gear wheel. The position of
this shaft varies in the looms of different makes; in some the said shaft is far
enough back to receive a gear wheel termed the second gear wheel, and not
bring the box motion too far toward the front of the loom, in which case the
first gear wheel may be dispensed with and the second gear wheel made fast on
the cam shaft.
A place to which most of the box operating parts are attached is held on an arm
attached to the end frame to support the box motion. This plate has two
dependent arms in which are arranged journals for a horizontal shaft which is a
square shaft with a bearing made on it at the left end, the square part of the shaft
extending from this bearing to a ring opposite the middle of the plate. From this
ring it is turned down round to the right end of the shaft, where the crank plate is
attached to it, so as to be turned by it. On this round portion of the horizontal
shaft is fitted to turn freely a sleeve square on its outside up to the right bearing
through and beyond which it is made round to its end inside of the stud plate and
an eccentric is made fast to the end of the sleeve just inside the said plate.
On the solid square part of the horizontal shaft inside of the left bearing are
placed gears which are combined in one block and are fitted to slide casily from
the bearing to the middle ring.
A similar block made up of like parts is fitted to slide freely on the square sleeve
from the middle ring to the right bearing. By this arrangement the crank plate
on the extreme right end of the horizontal shaft is controlled by the block on the
square part of the shaft, and the eccentric attached to the extreme end of the
sleeve will be controlled by the block on the square part of the sleeve.
The two blocks are moved back and forth on their respective square shafts to

page_text: and from the bearings by means of the two knee levers which are held by studs at
their angles to the plate so that the vertical arms of the levers extend down and
have friction rolls in their lower ends fitting into grooved spaces between the two
parts of the gears, the horizontal arms of the knee levers being connected by rods
to levers operated by the balls or rolls of a pattern chain.
The construction of the block is as follows:
Two half circle segment gears are placed on opposite sides and ends of a hub and
a grooved space is left between them. The outer block is constructed exactly in
the same way. They receive an intermittent rotary motion from the segment gears
before described as being on the sides of the gear wheel which is held on a shaft at
the back of the horizontal shaft near enough to it so that the segment gears on
it will engage with the segment gears when the latter come opposite to them. The
segment gears on the second gear wheel are placed wide enough apart to come
opposite to the inside segment gears when they are farthest apart from the shaft,
and opposite to the outside segment gears, when those gears are nearest together
on the shaft. The segment gears have about a half circle of teeth on each part,
and those segments on the wheel which are twice as large. in diameter, have a
quarter circle of teeth each, and when the driving segments engage with the other
segments they are intended to give the latter exactly one half of a turn.
The stop plates have flat places made on each side of their periphery onto which
the feet of the eveners press, so as to stop the plates at a certain point and even
them if they stop short of or overrun a half turn.
The eveners are constructed of square bars fitted to slide in a vertical position in
passages made for them in the plate. Their upper ends extend above the plate
and have open spiral springs placed around them, the outer ends of which bear
against straps passing over them from plate and their lower ends press against
shoulders on the bars, so as to keep the feet or cross bars in contact with the
plates.
There are two of these eveners so placed above the stop plates that each one will
be opposite to a plate. The fect of the eveners are raised by the circular parts of
the plate as they make a half turn and press on the other flat place when the half
turn is completed. The centre gear of the second gear wheel is of the same size as
the first gear wheel that drives it so that it shall make the same number of turns.
These parts consist of the eccentric, it has an annular groove in its face eccentric
in position to the hole for the sleeve that carries it.
The stud plate has the stud or pin in one end, which holds the connecting bar
on its outer end, and has a friction roll on its other end that runs in the eccentric
groove in the face of wheel it also has a slot in it to receive the horizontal shaft.
A stud is made fast in the other end of the plate which projects up through one of
the slots in the crank plate and has a washer and nut on the end to keep the
plate on.
The crank plate has a hole in its centre at which it is attached to the end of the
horizontal shaft and slots on each side of this hole to receive the studs in the plate.
The crank plate is fastened to the end of a part of the shaft and the eccentric is
fastened to the loose sleeve on the same shaft. The studs slide freely in the slots
in the crank plate as the groove in the eccentric moves the stud plate by the
friction roll.
In operating a four box loom with this arrangement the positions and motions of
the parts may be described as follows:-
:―
Starting with all the shuttle boxes down, a ball in the pattern chain operates the
lever to which the rod is connected the knee lever will be moved to throw the
block from the middle of the shaft and bring the inner segment gear in front of and
into engagement with the driving segment gear which will give it one half a turn
with the eccentric which is on the sleeve controlled by the segment; this half turn
will change the position of the eccentric which carries the pin or stud down and
raises the boxes up the distance of one box.
If at the next pick of the loom the pattern chain should operate the other knee

page_text: rever by its chain lever and the rod, that knoe lever will throw the inner segment
gear in front of and into engagement with the driving segment gear, the segment
gear and the crank plate controlled by that segment will make a half turn and will
carry the pin below the horizontal shaft but as the ball on the pattern chain has
passed and ceased to draw on the knee lever the other segment gear will be
returned to its first position by the spring and the third shuttle box will be raised
to the level of the race.
Now if this last position of the segment and crank plate is maintained by a ball
of the pattern chain continuing to draw up the knee lever, and the pattern chain
again operates the segment gear and parts as first described the eccentric will
receive another half turn and will carry the pin one step lower which brings the
lowest of the four boxes up to the level of the race of the loom. The order of
these several motions may be reversed and the shuttle boxes descend a box at a
time as they ascended or to any one position or a reverse movement of both
eccentric and crank plate brought about by there being no ball on the pattern
chain will cause the shuttle boxes to descend through all the stages at once.
These motions are conveyed to the boxes by a lever called the box lever" which
is composed of two parts connected together by a yielding device that allows one
part to be moved positively and the other to remain stationary, if it meets with
sufficient obstruction to its motion.
The two parts are held on the same stud made fast in the end frame of the loom.
The one part has its stud hole lengthened out to a slot to allow it to move away
from the other part which has a segment formed on its end with a notch in the
middle of it. The first mentioned part has a pin inserted in it in position to enter
the notch in the part, and a close spiral spring has one end attached to the stud and
its other end fastened to a pin in the latter part so that the spring will draw the
latter part towards the stud and hold the pin in the notch with sufficient force to
carry motion to operate the boxes, but if something prevents the boxes from
moving as, for instance, if one of the shuttles does not enter its box entirely then
the spring will yield and allow the pin to leave the notch in the lever and the
part will make its full motion whilst the other part will remain stationary and thus
avoid breaking any part of the machine and will remain in this position until after
the loom has stopped and the operative has adjusted the boxes again.
This prevents the displacement of the boxes caused by moving them by spring
pressure, as sometimes done.
This box lever is connected at one end by the rod to the pin and may be
connected at its other end to the box rod by a rod or in any of the usual ways of
connecting to the boxes.
In driving one segment gear by another to cause them to engage properly and
have the first tooth of the driver enter the first space in the driven segment, it has
been the way to leave out the second tooth of the driven segment gear to avoid
striking it with the first tooth of the driver, but this plan has the great dis-
advantage of throwing all the strain of starting the second segment and its
connections upon the first tooth of that segment until the third tooth comes into
gear. My improvement consists in making the first tooth of the driven segment
gear longer so that it can be readily caught by the first tooth of the driver without
hitting the next tooth and also by reinforcing it on its underside to strengthen it.
By this plan two teeth of each segment gears are brought into engagement
before the pin begins to raise the boxes. The driven segment is recessed out
outside of the first tooth to receive the end of the long tooth. Another difficulty
found in engaging one segment gear with another is the liability of the first
tooth of the driver to strike on the top of the tooth of the driver if it is slightly
out of place. To prevent any damage from this cause it has been customary to
place the driven mechanism on a plate held up to its work by a spring that
would yield if one tooth struck on the top of another.
The great objection to this plan is the lack of rigidity necessary to ensure
positive action in the working parts as they are liable to yield at any time.
In my

page_text: plan the difficulty arising from the displacement of the gears is to make the driver
with a movable set of teeth pivoted at one end and held up in place by a spring, at
the other end. This leaves the plate perfectly rigid at all times and if the teeth of
the two segments strike on their tops, the spring segment will yield and prevent
any damage.
It will readily be seen that what has been described herein for a box motion for
a loom with four boxes is, in the main a duplication of the parts required for a box
motion for a loom with only two boxes, as in the latter case only the crank plate,
one pair of the sliding segment gears, and one of the driving segment gears with
one of the knee levers and eveners with their springs would be required.
On the other hand a set as herein described for a four box loom combined with
the parts required for a motion for a two box loon, by placing the latter on the
other side of the driving segments and arranging its crank plate to control the
fulcrum stud of the box lever, would be capable of operating any number of boxes
up to eight with the same case of starting and stopping, and accuracy of motion.
In looms as now constructed there is usually a connection made between the
"weft stop motion "and the "take up motion" whereby the latter is stopped when
the weft fork indicates that the filling is lacking. The knee lever is made fast on
the outer end of the shaft to which the weft fork is attached. This lever is
arranged to trip the pawl that moves the ratchet wheel and stop the take up
motion of the cloth roll to which the ratchet wheel is attached when the weft
motion operates to stop the loom.
To accomplish the same result for the feed motion of the pattern chain to stop it
instantly upon the operation of the weft motion and prevent the pattern chain from
moving another bar whilst the loom is stopping, an arm having a segment plate on
one end is placed loosely on one end of the shaft of the chain driving wheel so that
when the outer end of the arm is drawn down by the weft stop motion to which it
is connected by a rod, knee lever held on a stud in the frame and a rod, the
segment plate on arm will be turned up under the dog, that moves the chain wheel
and stop the feed of the pattern chain, that it may be in the same position when
the loom is started up again.
This "hox motion" has this advantage.
The position of the boxes can be read on any part of the chain as each bar stands
for a certain position of the boxes without regard to what may have passed before.
Thus, a chain bar with no balls indicates the top box in position to throw the
shuttle a chain bar with right hand ball only, indicates the second box, a chain
bar with left hand ball only indicates the third box and a bar with both balls
indicates the fourth box. An advantage we believe found in no other chain box
motion.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Loom Shuttle Box Motions.
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 following statement:-
The invention herein described relates to that part of a loom mechanism known
as "box motions," which comprises the parts used in changing the shuttle boxes to
bring different ones into operation in the process of weaving.
The advantages gained over the mechanisms now in use for that purpose, are a
combining of certain motions for raising and lowering the different boxes, starting
with the favorite "crank motion"; that is, easily and moderately, and stopping in

page_text: the same manner, thereby avoiding the shocks that interfere with the using of high
speed. Also in ensuring positive motion and support of the parts after motion so
that the operating parts cannot be reacted upon by the shuttle boxes, or motion
of other parts of the loom and moved out of place and in having as few
working joints in the parts between the box operating mechanism proper and the
shuttle boxes, the wear of which from usc would create an uncertainty of action.
It also provides for stopping the chain feed by the weft motion when the looni
stops, to prevent the pattern chain from overrunning and an arrangement of the
mechanism between the "box motion and the boxes, to prevent injury by any
obstruction to the proper motion of the boxes.
"
In the accompanying drawings I have shown how my said invention may be
conveniently and advantageously carried into practice.
Figure 1 shows an elevation of the end of a loom, those parts being left out which
are not immediately connected with moving the boxes.
دو
Figure 2 is a rear elevation of the box motion proper.
Figure 3 is a vertical section of plate J on line ice Figure 2 showing a sliding
segment gear and stop.
Figure 4 is a vertical section of plate on line Figure 2, showing an evener
and plate H.
Figures 5 to 8 show the parts of the eccentric and crank motion separate.
Figure 9 shows a section of the parts seen in Figures 5 to 8 together with part
of the shaft that carries the crank plate, and sleeve that holds the eccentric.
Figure 10 is a side view of the driving segment gear S₁ and one of the sliding
segment gears engaging.
Figure 11 is a face view of the driving segment shown in Figure 10.
Figure 12 is a side view of the sliding segment gears as shown in Figure 2.
Figures 13 to 20 are views illustrating the various positions of the lifting
mechanism at different stages of its operations, as will be hereafter described.
Figure 21 shows a face view of a stop plate.
Figure 22 shows a modification of the box motion in which the driving
segment gears S, S₁ are made to slide in and out of gear, instead of the driven
segment gears, j', which are made fast respectively to the shaft R and sleeve m,
in this case.
The drawing segments S, S', are here shown on the cam shaft P.
Referring to Figure 1 of the drawing A, represents the end frame, Cr, represents
four shuttle boxes supported by a rod M, P is the lower or cam shaft to the end of
which is attached a gear wheel C. The position of this shaft varies in the looms
of different makes in some looms the said shaft is far enough back to receive a
gear wheel D, and not bring the box motion too far toward the front of the
loom, in which case the gear wheel C, may be dispensed with, and the gcar wheel D,
inade fast on the cam shaft.
A. plate to which most of the box operating parts are attached, is held on an
arm attached to the end frame A, to support the box motion. This plate J, has
two dependent arms in which are arranged journals for a horizontal shaft R,
which is a square shaft with a bearing made on it at the left end, Figure 2,
the square part of the shaft, extending from this bearing to a ring opposite
the middle of the plate J. From this ring it is turned down round as shown
by the dotted lines in Figure 2, to the right end of the shaft, where the crank
plate a, is attached to it, so as to be turned by it. On this round portion of
the horizontal shaft R, is fitted to turn freely a sleeve m, square on its outside
up to the right bearing, through and beyond which it is made round to its end
inside of the stud plate e, and an eccentric d, is made fast to the end of the sleeve
just inside the said plate c.
On the solid square part 1, of the horizontal shaft R, inside of the left bearing,
are placed the gears j, which are combined in one block, and are fitted to slide
casily from the bearing to the middle ring.
A similar block made up of like parts, is fitted to slide freely on the square

page_text: sleeve 71', from the middle ring to the right bearing. By this arrangement the
crank plate a on the extreme right end of the horizontal shaft R is controlled by
the block on the square part 7, of the shaft, and the eccentric d, attached to the
extreme end of the sleeve m, will be controlled by the block j', on the square part m,
of the sleeve.
The two blocks; and are moved back and forth on their respective square
shafts to and from the bearings, by means of the two knee levers I, I' which are
held by studs at their angles to the plate, so that the vertical arms of the levers
extend down and have friction rolls in their lower ends fitting into grooved spaces
between the two parts of the gears and the horizontal arms of the knee
levers II', being connected by rods o¹, o², to levers operated by the balls or rolls
of a pattern chain.
The construction of the block j is as follows:-
Two half circle segment gears are placed on opposite sides and ends of a hub and
a grooved space is left between them; they are shown in range endways
in Figure 12, and in side view in Figure 11. The other block is constructed
exactly in the same way. They receive an intermittent rotary motion from the
segment gears S, S₁ on the sides of the gear wheel D, which is held on a shaft at
the back of the horizontal shaft R, near enough to it so that the segment gears on
it will engage with the segment gears j, j', when the latter come opposite to them.
The segment gears on the gear wheel D, are placed wide enough apart to come
opposite to the inside segment gears jj when they are farthest apart on the shaft,
and opposite to the outside segment gears when those gears are nearest together
on the shaft R. The segment gears, have about a half circle of teeth on each
part, and those segments on the wheel D, which are twice as large in diameter have
à quarter circle of teeth each, and when the driving segments S, S'engage with
the other segments they are intended to give the latter exactly one half of
a turn.
The stop plates H, H', have flat places made on each side of their periphery
(see Figure 21) onto which the fect of the eveners g, press, so as to stop the plates
at a certain point and even them if they stop short of or overrun a half turn.
The eveners g, are constructed of square bars fitted to slide in a vertical position
in passages made for them in the plate J. Their upper ends extend above the
plate and have open spiral spring a¹ placed around them, the outer ends of which
bear against straps passing over them from plate J, and their lower ends press
against shoulders on the bars, so as to keep the feet or cross bars in contact with
the plates H.
There are two of these eveners so placed above the stop plates that each one will
be opposite to a plate. The feet of the eveners are raised by the circular parts of
the plate H, as they make a half turn, and press on the other flat place when the
half turn is completed. The wheel D is of the same size as the gear wheel C that
drives it, so that it shall make the same number of turns.
The parts of the eccentric and crank motion are shown in Figures 5-8 inclusive,
and all together in section in Figure 9.
These parts consist of the eccentric d, Figure 5; it has an annular groove in its
face eccentric in position to the hole for the sleeve m, that carries it.
The stud plate, Figures 6 and 8, has the stud or pin e, in one end, which holds
the connecting bar 4, on its outer end Figure 9, and has a friction roll, on its
other end that runs in the eccentric groove a³, in the face of wheel d; it also has a
slot in it to receive the horizontal shaft R. A stud is made fast in the other end
of the plate c, which projects up through one of the slots in the crank plate a, and
has a washer and nut on the end to keep the plate on.
The crank plate Figure 7 has a hole in its centre, at which it is attached to the
end of the horizontal shaft R, and slots on each side of this hole to receive the
studs in the plate c.
In Figure 9 R, is a part of the shaft to the end of which the crank plate a is

page_text: fastened m, is the loose sleeve on the same shaft, to which the eccentric d, is
fastened. The studs c, and v slide freely in the slots in the crank plate a, as the
groove in the eccentric moves the stud plate c, by the friction roll q.
In operating a four box loom with this arrangement, the positions and motions of
the parts may be described as follows.
Starting with all the shuttle boxes down, the position of the mechanism will be
shown in Figures 13 and 14. A ball in the pattern chain operates the lever to
which the rod of is connected, the knee lever will be moved to throw the
block, from the middle of the shaft, and bring the inner segment gear of j in
front of and into engagement with the driving segment gear S1 which will give it
one half a turn with the eccentric d, which is on the sleeve m, controlled by the
segment this half turn will change the position of the eccentric to that shown
in Figures 15 and 16 which carries the più e, or stud, down and raises the boxes up
the distance of one box.
If at the next pick of the loom the pattern chain should operate the other knee
lever 1, by its chain lever and the rod of that knee lever will throw the inner
segment gear of j, in front of and into engagement with the driving segment
gear S, the segment gear, and the crank plate controlled by that segment will
make a half tura and will carry the pin e, below the horizontal shaft R, but as
the ball on the pattern chain has passed and ceased to draw on the knee lever I'
the other segment gear will be returned to its first position by the spring i,
Figure 2 and the segment S¹ and the pin e, and the other parts will be as shown
in Figures 17 and 18 and the third shuttle box will be raised to the level of
the race.
Now if this last position of the segment j, and crank plate a, is maintained by
a ball of the pattern chain continuing to draw up the knee lever I, and the pattern
chain again operates the segment gear and parts as first described, the eccentric d,
will receive another half turn and will carry the pin e, one step lower to the
position shown in Figures 19 and 20, which brings the lowest of the four boxes
up to the level of the race of the loom. The order of these several motions may be
reversed and the shuttle boxes descend a box at a time as they ascended, or to any
one position, or a reverse movement of both eccentric and crank plate brought
about by there being no ball on the pattern chain, will cause the shuttle boxes
to descend through all the stages at once the position of the parts of the
"motion" then, will be the same as seen in Figures 13, 14.
These motions are conveyed to the boxes by a lever called the box lever"
Figure 1, which is composed of two parts connected together by a yielding device
that allows one part to be moved positively, and the other to remain stationary if
it meets with sufficient obstruction to its motion.
The two parts B and b, are held on the same stud 2, made fast in the end frame
of the loom. The one part B has its stud hole lengthened out to a slot to allow it
to move away from the other part, which has a segment we formed on its end with
a notch in the middle of it. The part B, has a pin inserted in it in position to
enter the notch in the part we, and a close spiral spring y, has one end attached to
the stud and its other end fastened to a pin in the part B, so that the spring,
will draw the latter part towards the stud and hold the pin z, in the notch with
sufficient force to carry motion to operate the boxes, but if something prevents the
boxes from moving, as, for instance if one of the shuttles does not enter its box,
entirely, then the spring y, will yield and allow the pin z, to leave the notch in the
lever and the part B, will make its full motion, whilst the other part b, will
remain stationary and thus avoid breaking any part of the machine, and will remain
in this position until after the loom has stopped and the operative has adjusted the
boxes again.
This prevents the displacement of the boxes caused by moving them by spring
pressure, as is sometimes done.
This box lever is connected at one end by the rod h, to the pin e and may be

page_text: connected at its other end to the box rod M, by a rod N, as shown, or in any of the
usual ways of connecting to the boxes.
In driving one segment gear by another to cause them to engage properly and
have the first tooth of the driver enter the first space in the driven segment, it has
been the way to leave out the second tooth of the driven segment gear to avoid
striking it with the first tooth of the driver; but this plan has the great disadvantage
of throwing all the strain of starting the second segment and its connections upon
the first tooth of that segment until the third tooth comes into gear. My improve-
ment consists in making the first tooth of the driven segment gear longer so that it can
be readily caught by the first tooth of the driver without hitting the next tooth and
also by re-inforcing it on its under side to strengthen it. (See Figure 11.) By
this plan two teeth of each segment gears j, S, are brought into engagement before
the pin begins to raise the boxes. The driving segment is recessed out outside of
the first tooth to receive the end of the long tooth. Another difficulty found in
engaging one segment gear with another, is the liability of the first tooth of the
driver to strike on the top of the tooth of the driven if it is slightly out of place.
To prevent any damage from this cause it has been customary to place the driven
mechanism on a plate held up to its work by a spring that would yield if one tooth
struck on the top of another.
The great objection to this plan is, the lack of rigidity necessary to insure positive
action in the working parts as they are liable to yield at any time. In my plan the
difficulty arising from the displacement of the gears is obviated by making the
driver with a movable set of teeth pivoted at one end A Figure 11, and held up in
place by a spring a, at the other end. This leaves the plate perfectly rigid at
all times and if the teeth of the two segments strike on their tops, the spring
segment will yield and prevent any damage. In connection with the driving
segment gear and the sliding gear having oppositely placed gear segments arranged
out of line laterally with relation to each other, I provide a stationary stop to
engage an end tooth of either gear segment according to the position into which the
segment gear is slid and detain the latter from undue rotation.
It will readily be seen that what has been described herein for a box motion for
a loom with four boxes, is. in the main, a duplication of the parts required for a box
motion for a loom with only two boxes, as in the latter case only the crank plate a,
one pair of the sliding segment gears j, and one of the driving segment gears S,
with one of the knee levers I and eveners g, with their springs i, a', would be
required.
On the other hand, a set as herein described for a four box loom, combined with
the parts required for a motion for a two box loom, by placing the latter on the
other side of the driving segments, and arranging its crank plate to control the
fulcrum stad of the box lever, would be capable of operating any number of
boxes up to eight with the same ease of starting and stopping, and accuracy of
motion.
In looms as now constructed there is usually a connection made between the
"weft stop motion and the take up motion," whereby the latter is stopped when
the weft fork indicates that the filling is lacking. This is shown in Figure 1, where
the knee lever is made fast on the outer end of the shaft to which the weft fork is
attached. This lever t, is arranged to trip the pawl t, that moves the ratchet
wheel L, and stop the take up motion of the cloth roll to which the ratchet wheel is
attached, when the weft motion operates to stop the loom.
To accomplish the same result for the feed motion of the pattern chain, to stop it
instantly upon the operation of the weft motion and prevent the pattern chain from
moving another bar whilst the loom is stopping, an arm o, having a segment plate
on one end is placed loosely on one end of the shaft of the chain driving wheel K
so that when the outer end of the arm is drawn down by the weft stop motion to
which it is connected by a rod p knee lever, held on a stud in the frame and a
rod, the segment plate on arm o, will be turned up under the dog n, that moves the

page_text: chain wheel K, and stop the feed of the pattern chain, that it may be in the same
position when the loom is started up again.
This "box motion" has this advantage:
The position of the boxes can be read on any part of the chain, as each bar stands
for a certain position of the boxes without regard to what may have passed before.
Thus a chain bar with no balls indicates the top box in position to throw the
shuttle; a chain bar with right hand ball only, indicates the second box; a chain
bar with left hand ball only, indicates the third box, and a bar with both balls
indicates the fourth box. An advantage I believe, found in no other chain box
motion. In the modification of my invention shown in Fig. 22 I have embodied a
construction which is to a certain extent the equivalent of that above described as
embodied in the box motion proper. In this modification the gear segments are
made fast to the shaft R and sleeves surrounding the same, respectively, and the
segments SS are separately mounted on shaft p, being splined thereto, as shown,
to permit of their being moved longitudinally of the said shaft by the levers I [¹.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed as communicated to me by my
foreign correspondent, I declare that what I claim is :-
First. In combination with the connection h, and as a means for moving the
same into different positions, a pin e, a slotted plate, through the slot in which
the said pin projects, a grooved eccentric cam into the groove of which the pin
enters, and devices for imparting movements of rotation to the said slotted
plate and grooved eccentric cam, as desired, all substantially as shown and
set forth.
Second. In combination with the connection h, and as a means for moving
the same into different positions, a pin e, a slotted plate through the slot in
which the said pin projects, a grooved eccentric cam into the groove of which
the pin enters, a shaft carrying the slotted plate, a sleeve surrounding the shaft
and carrying the grooved eccentric cam and devices for imparting movements
of rotation to the shaft and sleeve, as desired, all substantially as shown and
set forth.
Third. In combination with the connection h, and as a means for moving the same
into different positions, a pin e a slotted plate through the slot in which the said pin
projects, a grooved eccentric cam into the groove of which the pin enters, a sliding
plate interposed between the grooved eccentric cam and the slotted plate and
carrying the pine and devices for imparting movements of rotation to the said
slotted plate and grooved eccentric cam, as desired, all substantially as shown and
set forth.
Fourth. In combination with the connection, and as a means for moving the
same into different positions, a pin e, a slotted plate through the slot in which the
said pin projects, a grooved eccentric cam into the groove of which the pin enters, a
sliding plate interposed between the grooved eccentric cam and the slotted plate
and carrying the pin e, a shaft carrying the slotted plate, a sleeve surrounding the
shaft and carrying the grooved eccentric cain, and devices for imparting movements
of rotation to the shaft and sleeve, as desired, all substantially as shown and
set forth.
Fifth. The combination, with a driving segment gear, of a sliding gear having
ppositely-placed gear-segments disposed out of line laterally with relation to each
other and a stationary stop disposed in position to engage an end tooth of either
gear-segment, according to the position into which the segment-gear is slid and
etain the segment gear from undue rotation, substantially as shown and
escribed.
Sixth. The combination, with the shuttle boxes and the pin e operatively con-
ected therewith, of the slotted plate through the slot in which the said pin passes, the
rooved eccentric cam into the groove of which the said pin enters, the shaft upon
which the slotted plate is mounted, the sleeve upon which the grooved eccentric
B

page_text: cam is mounted, gears having thereon oppositely-disposed gear-segments out of line
laterally with respect to each other, operatively connected with the said shaft and
sleeve, respectively, and segment-gears engaging with the said gear-segments, the
said segment-gears and gears provided with oppositely-disposed gear-segments being
constructed to have a lateral movement the one of them relatively to the other, as
described, all as and for the purpose set forth.
I
Seventh. The combination, with the shuttle-boxes and the pin e operatively
connected therewith, of the slotted plate through the slot in which the said pin
passes, the grooved eccentric cam into the groove of which the said pin enters,
the shaft upon which the slotted plate is mounted, the sleeve upon which the
grooved eccentric cam is mounted, gears having thereon oppositely-disposed
gear-segments out of line laterally with respect to each other, the said gears
being free to move longitudinally of the shaft and sleeve, respectively, but
compelled to rotate in unison therewith, and segment-gears engaging with the
said gear-segments as the latter are brought into position for being engaged by
the lateral movement of the gears, all as and for the purposes set forth.
Eighth. The combination, with a gear having a segmental series of teeth, of a
laterally sliding-gear having oppositely-disposed gear-segments out of line laterally
with respect to each other, the first tooth of each gear-segment being longer than
the remainder of the teeth thereof, substantially as described.
Ninth. The combination, with a series of shuttle-boxes having a pine operatively
connected therewith, of a grooved eccentric cam into the groove of which the pin
enters, a carrier for the said cam, a gear mounted on said carrier with capacity for
movement longitudinally thereof, but compelled to rotate in unison therewith, the
said gear having thereon oppositely-disposed gear-segments out of line with each other,
and a rotating driving segment-gear, all substantially as described.
Tenth. The combination with a driven segment gear, of a driving segment-gear
having a yielding spring-supported toothed segment, substantially as described.
Eleventh. The combination, with a driven segment-gear of a driving segment-gear
having a toothed segment pivoted to the body thereof and spring-supported substan-
tially as described.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.