IMPROVEMENTS IN LOOMS
Year: 1885

page_text: COMPLETE SPECIFICATION.
We, MERRILL AUGUSTUS FURBUSH, of N° 1711, Green Street, Philadelphia,
Pennsylvania, United States of America, Manafacturer, CHARLES HARRISON
KNOWLTON, of Royden Street, Camden, Camden County, New Jersey, Super-
intendent, and BENJAMIN FRANKLIN MEYER, of 739, Walnut Street, Camden,
Cainden County, New Jersey, Foreman, do hereby declare the nature of our
Invention for "IMPROVEMENTS IN LOOMS," and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
Our Invention relates to that class of fancy-looms in which are embodied
mechanism for operating drop-boxes and devices controlled by a pattern-chain for
actuating the heddles, the main objects of our Invention being, first, to avoid
gear-wheels, clutches, and other appliances which are liable to get out of order, and
to which much of the undue friction and the shocks and jars which accompany the
movements of looms of this class as ordinarily constructed may be attributed; and,
second, to afford facilities for correcting any imperfection in the fabric caused by
wrong picks.
The devices and combinations of parts and the manner in which they are
operated for the attainment of these objects are so fully described and claimed
hereinafter that preliminary explanation will be unnecessary.
In the accompanying drawings:-
:-
Fig; 1, represents a side view of a fancy-loom adapted with our improvements.
Fig 2, illustrates part of the crank-shaft and its crank-pins.
Fig; 3, a diagram showing the relation of the crank-pins to the shaft.
Fig; 4, a front view of part of the loom, portions of the loom being omitted in
order to avoid confusion.
Fig; 5, a rear view of part of the loom, looking in the direction of the arrow, 1,
Fig; 1, and showing the mechanism for operating the drop-boxes.
Figs; 6, and, 7, views illustrating the devices for actuating and reversing the
chain-shaft.
Figs; 8, and, 9, detached perspective views of the drop-box operating mechanism.
Fig; 10, a side view, partly in section, of the said mechanism.
Fig; 11, a sectional plan on the line 3-4, Fig; 10.
Fig; 12, a perspective view of the heddle-operating mechanism,

page_text: Fig; 13, a vertical section on the line 1-2, Fig; 1, showing parts of the heddle
operating mechanism.
Fig 14, a perspective view of part of the plate for retaining the hand lever
shown in Fig; 1.
Fig; 15, a detached perspective view of part of Fig; 1; and
Fig; 16, a side view of part of the drop-box mechanism, illustrating details in
the construction of the same.
Referring to Fig; 1, A, represents one of the end frames of the loom, and, B, the
crank-shaft, which in this Figure is represented by a dotted circle.
On referring to the detached view, Fig; 2, it will be seen that this shaft, which
turns in suitable bearings in the end frames of the loom, has two cranks of which,
a, and, b, are the two pins, the relation of which to each other and.to the shaft is
shown in the diagram, Fig; 3, A bell-crank lever, D, is loose on the crank pin, a,
and a bell-crank lever, E, on the crank pin, b, so that as the shaft, B, revolves the
two bell-crank levers will be carried around with the said pins, the centres of the
latter pursuing the annular course indicated by the dotted circle, x, Fig; 3. Both
of these bell-crank levers are under the control of a hand lever, F, which is pivotted
at, f, to the end frame, A, of the loom, the arm; d, of the bell crank lever, D, being
connected by a rod, h, to a pin, f¹, on the said lever, F, below the pivot pin, f, and
the arm, e, of the bell crank lever, E, being connected by a rod, h¹, to a pin, fƒ³, on
the same lever above the said pivot pin, f. The lever, F, is stationary as long as the
loom is doing accurate work; and is operated occasionally only, and then under the
circumstances explained hereinafter. The lever may be retained by a notched
plate, i, Fig; 14, and may be pulled laterally from the notch, i, whenever it has
to be operated; or any other device for retaining the lever and setting it at liberty
may be adopted.
The drop-box mechanism derives its motion from the bell-crank lever, D, and
'the heddle mechanism from the bell-crank lever, E, and the movements of both
levers are due partly to the rotating of the crank-pins and partly to the control
which the lever, F, has over the levers, and which determines what movement
shall be imparted to them by the said crank-pins. We will in the first instance
describe the mechanism through the medium of which the said bell-crank
lever, D, is caused to operate the drop-boxes of the loom, reference being had to
Figs; 1, 4, 5, 8, and 9.
The legs, g, of the lathe, G, are pivotted to a shaft, H, which has its bearings in
the opposite end frame of the loom, one of these legs being shown in Fig; 4, but
omitted in Fig; 1, in order to avoid confusion in that view, for the same reason
the usual devices for operating the lathe from the crank-shaft have been omitted.
At each end of the lathe there are suitable guides for a drop box, H¹, the
detailed construction of which it will not be necessary to describe, as it may be
similar to those of other drop-box looms, and forms no part of our present
.Invention. It will suffice to remark that each drop-box has, in the present
instance, four compartments for as many shuttles, and is attached to a vertical
rod, h, which vibrates with the lathe in the usual manner.
A frame, I, Figs; 1, and, 4, which is secured to and rocks with the shaft H, has
a guide, ', for a sleeve, J, through which passes the above mentioned drop-box
rod, h, which below the sleeve is provided with a nut or collar, i, a spiral
spring, j, surrounding the rod, h³, being interposed between the sleeve and under-
side of the drop-box, and this spring being sufficiently rigid to insure the rising of
the drop-box when the sleeve is elevated, but yielding whenever there is any
obstruction to prevent the box from being raised. An arin, m, forming part of and
projecting from the rock-frame, I, carries the lower end of the picker staff, which,
together with mechanism for operating it has not being shown in the drawings, as
it forms no part of our present Invention.
One end of a chain or cord, K, is attached to the sleeve, J, as shown in Fig; 1,
passes over a pulley, k, hung to a pin on a hanger secured to the underside of the
lathe, the cord passing round a similar pulley, k¹, on a più attached to the frame of

page_text: the loom, the cord passing thence to a pulley, l, the journals of which have their
bearings in an attachment to the frame, over a pulley, n, carried by an arm, L
downward round a pulley, n', to one of the jacks M¹ referred to hereinafter.
At the end of the loom, opposite to that shown in the drawings there is a drop-
box and appliances connected therewith precisely like that described, and to the
sleeve, J, of the rod, h³, of that box is attached a cord or chain, K¹, extended.
beneath the lathe, as shown in Fig; 4, passing over a pulley, k, adjoining the
above mentioned pulley, k, round a pulley, k³, on the same pin as the pulley, k¹,
round a pulley adjoining the pulley, l, round a pulley, n², carried by an arm, L¹,
downward and round a pulley adjoining a pulley, n', and upward to another
jack, M¹, of the series referred to hereinafter.
The arms, L, L¹, are pivotted to the frame of the loom, and the outer end of each
arm is connected by a rod, p, to a similar jack M.
It will be well at this point to refer to the pattern chain shaft, N, which is
adapted to suitable bearings in attachments to the frame of the loom, this shaft
carrying two pattern-chains, P, P, the former appertaining to the heddle mechanism,
and the latter to the drop-box mechanism.
The arm, e, of the lever, E, is connected by a rod, 8, to an arm, t, on a slide-
rod, Q, which is adapted to guides, q, on the frame work of the loom, as shown in
Figs; 1, 4, and, 12. To a projection, s¹, on the upper end of this reciprocating
rod, Q, is hung a swinging frame, R, to which are pivotted two pawls, u, u', each
adapted at its lower end to strike against pins, v, on a disc, 8, which is secured to
the aforesaid chain shaft, N. A toe, vl, on each pawl, by coming in contact with
part of the swinging frame, has its inward movement limited; but it can yield
outwardly, as the pawls are connected together by a spring v. Which of the two
pawls shall act on the pins of the disc is determined by mechanism shown in
Figs; 6, and, 7. A curved arm, T, is pivotted at, w, to the frame of the loom, and
this arm carries two rollers, a¹, x1, over both of which passes the forked lower end
of the above mentioned rocking frame, R, which, by the adjustment of the said
curved arm, can, through the medium of the rollers, x¹, be moved to a position
where the pawl, u, only will act on the pins of the disc, or where the other
pawl, u', only will act on the same, or where neither pawl will come in contact
with the pins as the rocking-frame reciprocates with the above-mentioned
slide-rod, Q.
Different devices may be used for adjusting the said curved arm, T. In the
present instance it is connected by a rod, U, to an arm, y, on the shaft, 2, which
has its bearinge in the frame-work of the loom, the shaft being provided with a
handle, 3, adapted to notches in a fixed segment, 4, and a spring 5, bearing on a
collar on the shaft and tending to maintain its handle in the notch to which it has
been adjusted, but permitting the handle to be withdrawn from a notch when it
becomes necessary to adjust it to another notch.
It will now be seen that the chain-shaft, N, may be moved intermittently in
either direction, or its movement arrested while the rocking frame and its pawls
continue to reciprocate with the slide-rod, Q, which as before remarked, derives its
motion from the bell-crank lever, E.
On referring to Fig; 4, it will be seen that the chain shaft, N, is provided with
a wheel, N', in the periphery of which are depressions for receiving a roller on the
end of an arm, N2, pivotted to the frame of the loom, a spring, N', serving to
depress this arm. The object of this detent mechanism is to restrict the movement
of the said chain-shaft.
It should be remarked that the pattern-chains are similar in construction to
those for actuating the jacks in ordinary looms, and are adapted to ordinary chain-
wheels on the chain-shaft.
We will now proceed to describe the mechanism by which the bell-crank lever, D,
is caused to actuate the drop-box in obedience to the action of the pattern chain, PL,
reference being had to Figa 1 4 5 8 9 10 11

page_text: It should be understood, in the first place, that there are two jacks M, M', (best
observed in the perspective view Fig; 9, and side view Fig; 10.) for the drop-box, H¹,
on that side of the loom which we have illustrated, and that there are two similar
jacks adjoining those lettered M, M¹, for the drop-box on the opposite end of the
lathe. To prevent confusion we have shown in the above mentioned views, Figs; 9,
and, 10, the two jacks only which appertain to the drop-box, H', and for the time
being shall restrict our description to these jacks, and to the mechanism connected
therewith.
As shown in Fig; 9; the lever, L, is connected by a rod, p, to the jack, M, and
the cord, K, previously referred to, is connected to the jack, M.
By mechanism hereinafter explained the jacks are operated in obedience to the
action of the pattern-chain, that is to say, each jack, M, or, M¹, may be raised or
lowered independently of the other, or raised and lowered together with the other;
but it should be understood that each jack is always, when not in actual motion,
either at the limit of its upward or the limit of its downward movement, between
which there is no stoppage of either jack. When the jack, M, is elevated, the
jack, M', being stationary, the drop-box H, will be raised through the medium of
the rod, p, lever, L, and cord, K, to the extent of two of its compartments.
When the jack, M³, is raised, the jack, M, being stationary, the drop-box, will be
raised through the medium of the cord, K, to the extent of one compartment, and
when both jacks are raised the drop-box will receive its greatest movement-that
is, to the extent of three compartments. Thus by the operation of the jacks,
the drop-box may be moved to any position which the pattern chain may
determine.
We will now describe the mechanism for operating the jacks before we explain
the effect which the pattern chain has on that operation.
Referring to Figs, 1, and, 8, it will be seen that the arm, d, of the bell-crank
lever, D, is connected by a rod, V, to an arm, 6, on a rock shaft, W, which has its
bearings in any suitable attachment to the frame-work.
To this shaft, W, is secured a lever, W₁, (see Fig; 10,) one arm, W, of which is
connected by a link, 7, to a cross-head, X, which is secured to a vertical rod, Y,
the latter being adapted to guides on the framework, these devices being shown in
Fig; 1, but more clearly in the perspective view Fig; 8, and in the sectional plan
Fig; 11. A dog, 8, Figs; 8, 9, and, 10, is pivotted to the cross-head X, a spring, vl,
tending to maintain the said dog in the position shown in Fig; 10. The arm, w,
of the lever W₁, is connected by a link, 9, to another cross-head, X¹, which is
secured to another slide-rod, Y¹, Figs; 10, 11, and, 16. The object of pivotting the
dog, 8, to the cross-head, X, and of attaching the spring, vl, to the same, is to permit
the said dog to yield when a jack is out of place and presents as an obstacle to the
movement of the dog its projection 23. It will thus be seen that as the bell-crank
lever, D, operates, a vertical reciprocating motion in contrary directions will be
imparted to the two cross-heads, X, X¹, and to the two slide-rods, Y, Y'.
We will now proceed to explain the influence which the pattern-chain, P¹, has
in determining which of the jacks shall be depressed by the dog, 8, of the
cross-head, X, and which of the jacks shall be raised by the cross-head, X'.
Referring to Fig; 5, it will be seen that arms, 10, pivotted to a bracket on the
frame, rest on the endless chain, P. In this view all four jacks are shown two
appertaining to the drop-box at one end of the loom and two to the drop-box at
the opposite end of the loom, and there are four of these arms, 10, one for each jack.
We will, however, continue to restrict our explanation to two jacks. Each of these
arms, 10, is connected by a rod to a finger, 11, pivotted to an arm, 12, of a lever, J¹,
which is hung to a pin on the frame of the loom, the upper arm, 13, being con-
nected by a link, 14, to one arm, 15, of a lever, V₁, which is also pivotted to the
frame, a block, 17, on the link, 9, fitting freely into the forked arm, 16, of the said
lever, V¹, the arm, 15, of which has a small set screw 18, for limiting the outward
movement of the fingers, 11, and for affording a means of regulating this movement;

page_text: As the rod, 9, reciprocates, its block, 17, actuates the lever, V₁, and consequently
operates the lever, J., and fingers, 11. Arms, 19, one for each jack, are pivotted to
the frame work at, 20, and each arm has a shoulder, 21*, with which one of the
fingers will come in contact when permitted by the pattern chain. The upper
ends
of the jacks pass through a yoke, 21, secured to the frame-work of the machine,
and on one edge of this yoke rests a lug, 22, on each jack when the latter is
elevated. When one of the jacks has been forced outward by the action of one
of the fingers, 11, on one of the arms, 19, it will be freed from the yoke, 21, and
will be depressed by the dog, 8, of the cross-head, X, the said dog coming in contact
with a lug, 23, on the jack. The jack is elevated by the cross-head, X', which
comes in contact with a lug, 24, on the jack and raises the latter, so that it again
catches on the edge of the yoke. Each jack near its lower end bears against a
rounded projection, 25, on an attachment to the frame, and there is for each jack
a lever, 26, pivotted to an attachment on the frame, A, of the loom, the short arm
of the said lever being provided with a shoe, 26*, which is caused by a spring, 27,
acting on the long arm of the lever, 26, to bear against the jack at a point above
the projection, 25, the lever and spring having consequently a tendency to force the
jack in the direction of the arrow Fig, 10, and cause its lug, 22, to catch on the
edge of the yoke, 21.
A bar, 28, attached to the frame-work, serves as a stop to prevent the depression
of the jacks below a given point. The upturned end of each arm, 19, has two
notches for a retainer, 29, which is on a lever, 30, pivotted at, 31, to the frame
of the machine and depressed by a spring, 32, the same retainer serving for all
the arms, 19. A trigger, G¹, is pivotted to a projection, 34, on the vertically
reciprocating rod, Y, and on the descent of this rod, one arm, 33, of this, trigger
comes in contact with a stop, 35, on the frame, (see Fig; 1,) and this causes the
other arm, 86, of the trigger to move into position to actuate, during the rise of
rod, Y, an arın, 37, which is a continuation of the lever, 30, thereby freeing the
arms, 19, from the control of the retainer. This may be more fully explained in
connection with Fig; 16. During the descent of the rod, Y, the arm, 33, of the
lever, G', comes in contact with the stop, 35, on the frame of the loom, and the
lever, G¹, is brought to a horizontal position, its movement being limited by a
stop, 65, on the projection, 34, but it must be understood that in making this
movement, the arm, 36, of the lever, G¹, does not disturb the arın, 37. The arm, 36,
of the lever, G¹, however, when the rod, Y, has reached the limit of its downward
movement, extends beneath a projection, 66, on the said arm, 37, and this projection
is inclined on the under side, so that, as the rod, Y, rises, the arm, 36, of the
lever, G¹, acting on the inclined under side of the said projection, will actuate the
arm, 37, and the retainer, 29, will leave the notches in the upturned ends of
the pivotted arms, 19, which will thus be released, only temporarily, however, for
as soon as the arm, 36, of the lever, G', is clear of the said projection, 66, on the
arm, 37, the said arm will be restored by the spring, 32, to its first position. The
object of the retainer is to lock each of the arms, 19, after each of its movements,
the retainer fitting in one notch after an arm has been moved in one direction, and
into the other notch after the arm has been moved in the opposite direction.
It must be remembered that the jacks, M, M¹, have during their operations both
a vertical movement, occasioned by the action of the cross-heads, X, X¹, and a
slight lateral movement, occasioned by the pressure of the shoes, 26*, on the upper
ends of the levers, 26, and this lateral movement causes the arms, 19, to be pushed
outward when the retainer, 29, is raised.
It will now be seen that the jacks are actuated by the cross-heads, X, X', the
pattern-chain determining through the medium of the devices described, which of
the jacks shall be operated upon.
Referring to Fig; 9, it will be seen that the long arm of each lever, 26, is
connected by a spring, 27, to one arm, 38, of a bell-crank lever, U, which is
pivotted to the frame of the machine, and the other arm, 39, of which is connected

page_text: by a rod, 41, to the arm, L. The short arm of the lever, 26, for each jack, carries
a pivotted shoe, 26*, which bears against the wedge-shaped lower end of the jack,
and serves in a measure to retard the descent of the same, and when the lever, L, is
depressed by the depression of the jack, M, the friction exerted on each jack by the
shoe, 20, of the lever, 26, connected to the said lever, L, is increased through the
medium of the rod, 41, lever, U₁, and spring, 27, thus preventing too rapid an
operation of the drop-boxes. The arm, L, however, at the moment when it is elevated
by the elevation of the jack, M, diminishes the effect of the spring, 27, on the
lever, 26, appertaining to each jack, and consequently reduces the friction of the jack
both on the yoke, 21, and projection, 25. In further explanation of this part of our
Invention, it should be stated that there is only one lever, U¹, for the two
levers, 26, of the two jacks, M, M. When the jack, M1, is depressed to lower the
shuttle-box to the extent of one of its compartments, the arm, L, as well as the
lever, U¹, remains undisturbed, and consequently there can be no alteration of
the friction of the shoe of. the lever, 26, on the said jack, M', for increased friction
is not so essential when the jack, M¹, is operated to lower the box to the extent of
one compartment, as when both jacks are operated to lower the box to the extent
of three compartments. If both jacks are operated to lower the shuttle-box to the
extent of three compartments, there will be an increased friction on both jacks,
just as an increased friction is imparted to the jack, M, when operated to lower the
shuttle-box to the extent of two compartments.
We will now proceed to describe the heddle-mechanism reference being had to
Figs; 1, 4,-12, and, 13.
The upper bar of each heddle-frame, A', is connected by cords, 42, passing over
pulleys, 43, Fig; 4, to an arm, 44, of a bell-crank lever, T¹, or, T", pivotted to the
frame of the loom, and the lower bar of each heddle frame is connected by a cord, 46,
passing round pulleys, 47, and, 48, to the other arm, 45, of the same lever, T¹,
or, T
Referring to Figs; 12, and, 13, and to the slide rod, Q, which, as remarked above,
has a projecting arm, t, connected by a rod, 8, to the arm, e¹, of the bell-crank
lever, E, it will be seen that an arm, 49, secured to the said slide-rod, Q, is con-
nected by a rod, 50, to one arm of a rocking lever, Q', which is pivotted to a pin, 51,
secured to the frame-work of the loom, the other arm of this rocking lever being
connected by a rod, 52, to an arm projecting from the slide-rod, Q³, so that as the
bell-crank lever, E, is vibrated, the rods, Q, and, Q", will reciprocate in contrary
directions.
Two only of the bell-crank levers, T', and, T2, one for each heddle are shown in
Fig; 12, and two jacks, Z, Z', one for each heddle-lever, the arm, 45, of each bell-
crank lever passing freely through a slot in the lower end of one of these jacks.
To the reciprocating rod, Q, is secured an arm, 53, which extends across and
above the arms, 45, of the bell-crank levers T¹, and, T2, and the rod, Q", is provided
with a similar arm, 54, which extends beneath the said arms, 45, of the said bell-
crank levers. The outer ends of the arms, 53, and 54, are guided by the slotted
plate, 55, (shown in Fig; 4) the said plate being secured to the frame-work of the
loom. The rod, Q, is provided with another arm, 56, and the rod, Q, with an
arm, 57, the outer ends of these arms being guided by a slotted plate, 58, Fig; 4,
secured to the frame-work of the loom. The object of the arm, 56, is to raise any
jack which may be in such a position that its lug, 60*, will be in the path of the
arm as the latter is elevated.
To the arm, 57, is pivotted at, 59, Fig; 12, a bar, 61, which acts on the lugs, 60,
of the jacks to depress the latter, a spring, 62, (shown in the detached view
Fig 15,) at the rear of the bar tending to maintain the same in contact with the
bar, 57.
>
The object of the arms, 53, and, 54, is to equalize the heddle-levers, that is to
say, to bring them into the mid-position, or position of closed shed, after each
operation and before the pattern-chain acts to adjust them for the next shed,

page_text: .
There is for each jack a weighted lever, 63, pivotted to any suitable attachment
of the frame; a short arm of each lever tending to force its jack against the pattern-
chain, P, which has heretofore been referred to, and which is adapted to the usual
chain-wheel secured to the shaft, N. This chain determines which of the jacks
shall be moved within the range of the pivotted bar, 61, of the arm, 57, or within
the range of the arm, 56.
It will not be necessary to enter into a further explanation of the operation of
the above described heddle-mechanism, as its action will be readily understood by
those familiar with looms of the class to which our Invention relates.
As regards the first object of our Invention, no gear-wheels, clutches, or cams are
used in connection either with the drop-box mechanism or heddle mechanism, the
several movements being brought about principally by the aid of levers, arms, rods,
and ordinary grooved pulleys, the movements of which are accompanied with but.
little friction. The second object, that of affording facilities for correcting any
imperfection in the fabric due to a wrong pick, and for at once resuming the
operation of weaving after the correction has been made, may be briefly explained
by referring to Figs; 1, and, 6, of the drawings. After the stoppage of the loom,
when an imperfect pick has occurred and other picks have followed the imperfect
one, both the drop-box mechanism and heddle mechanism can be restored to the
relative conditions in which they were when the wrong pick occurred, by first
throwing out of action the pawl, u, and putting in action the pawl, u¹, by the
mechanism shown in Fig; 6, then releasing the hand lever, F, and by it operating
the mechanism described, so as to intermittently turn the chain shaft, N, in
a direction contrary to that in which it had previously turned, and this will result
in restoring the drop-box and heddle mechanism to the condition in which they
were when the wrong pick occurred, after which the pawls, u, u¹, may be restored
to their original positions, and the lever, F, secured as before. After each opening
of the shed due to the operation of the hand-lever, F, a weft-thread is removed,
this operation being continued until the imperfect thread is reached and removed,
when the loom is again thrown into gear, and the weaving proceded with.
Having now particularly described and ascertained the nature and objects
of our said Invention, and in what manner the same is to be performed, we
declare that what we claim, is
1. The combination of the crank-shaft, B, its crank-pins, a, and, b, levers, D,
and E, rods, h, h¹, and hand-lever, F, with the chain-shaft, N, heddle-jacks, and
drop-box jacks, and mechanism whereby the said shaft and jacks are operated from
the said levers, D, and, E, substantially as herein-before described.
2. The combination of the chain-shaft and its disc provided with pins, the
rocking frame, R, and its pawls, and mechanism for operating the said frame, with
a lever, T, having rollers, x¹, x, adapted to the frame, and with mechanisin for
adjusting and retaining the said lever, T, all substantially as specified.
3. The combination of the drop-box jacks, M, M₁, the pattern chain, P¹, the
pivotted dog, 8, the cross head, X, and mechanism for operating the said chain,
dog, and cross-head, with the arms, 19, fingers, 11, mechanism for operating the
same, and devices whereby the chain is made to control the fingers, all substantially
as specified.
4. The combination of the arms, 19, having notches at their lower ends, and
mechanism for operating the said arms, with a retainer, 29, adapted to the said
notches, and with mechanism for actuating the retainer, substantially as set forth.
5. The combination of the block, 17, mechanism for reciprocating the same, and
the arms, 19, with the lever, V¹, link, 14, lever, J', and fingers, 11, substantially as
set forth.
6. The combination of the block, 17, and mechanism for operating the same,
with the lever, J¹, and its fingers, 11, the link, 14, and lever, V₁, and its set.
screw, 18, substantially as specified.
Q

page_text: 7. The combination of the heddle-jacks, the drop-box jacks, the pattern chains
therefor, slide rods, Q, Q, and means whereby they are caused to operate the
heddle-jacks, slide rods, Y, Y', and means whereby they are caused to operate the
drop-box jacks, devices for operating the pattern-chains, and mechanism whereby
the two sets of slide-rods are operated independently of each other, substantially as
set forth.
8. The combination of the shaft, B, having two crank-pins, a, b, the levers D,
and, E, hung to the said pins, the rods, h, h¹, and hand-lever, F, with the rod, V,
arm, 6, and drop-box mechanism, rod, S, bar, Q, and heddle mechanism, all
substantially as set forth.
And 9. The combination of the jacks, the drop-box, and drop-box rod, mechanism
for operating said jacks, the arm, L, and the cord K, and rollers therefor, with the
brake-levers, 26, lever, U¹, springs 27, and rod, 41, substantially as set forth.