Year: 1895

page_text: Date of Application, 1st Oct., 1895-Accepted, 16th Nov.,
1895

page_text: to its end the toothed shoe p. The rod K is also pivoted to the connecting-rod P
which is pivoted at its other end to the ratchet lever Q, loosely journaled on the
shaft of the roller D, and carrying a pawl q, with a toothed shoe v, pivoted thereto,
similar to w p.
The stroke of the pawl q is adjusted by changing the pivoted
points between the rods K, P, Q as may be desired. The pawl shoes p, v, engage
with the ratchet wheel a which is secured to the shaft of the roller D.
The roller C is actuated by the friction of the cloth around it, as the cloth is
drawn down by the roller D, and the roller B, the bearings of which are in the
inclined slotted arms V, V, is rotated by travelling against the roller C, and is
enabled to adjust its rotation to the increased size of the roll of cloth by travelling
upwards in the slotted arms.
I will now refer to the cam cylinder which I use in connection with these
other devices upon my improved machine. Y is my improved cam cylinder
which is provided at its upper inner edge with a thin ring u screwed or riveted
to the cylinder Y. cd are metal rods, bent so as to form between them the cam
race y these rods may be made in separate sections if desired. They are secured
to the cylinder by rivets or bolts. To allow for the play of the needles as hereafter
explained I prefer to make c, d thicker than u so as to allow the jack to play at
the top.
This construction affords me between the ring u and the rod c a space or chamber e
into which the lint may fall without clogging the needles. I also obtain a similar
chamber below the rod d. By this method of constructing my cam race, I avoid
the breaks formed by joining plates, riveted on the inside of the ring, as in cam
cylinders heretofore made, and secure a uniform and smooth surface with cheapuess
and convenience of construction.
Fig. 6 shows the position of the crooked needle, when depressed. The bend in
the needle necessarily throws the upper end of the jack forward and to allow for
this, I reduce the thickness of the ring u, which permits the upper end of the jack
to play as much as is necessary in its descent.
To obtain a satisfactory action of the bent needles, it is of importance that
a uniform and accurately adjusted tension shall be maintained upon the knitted
fabric. If the tension is not sufficient, the stitches are liable to be drawn out of
proper proportion by the descent of the bend of the needles through the loops and
to their following the needles up, when rising, hanging on the bend. On the other
hand, if the tension is too great the needles are apt to bind in the loops, placing an
undue strain and drag upon the machine, and distorting the fabric, and, as the bent
needles have the greatest tendency to bind, the fabric is likely to be uneven and
irregular in texture. And if the tension is at times too great and at other times
too slight the goods are apt to be of uneven formation and unsatisfactory.
Moreover to obtain a satisfactory movement of the needles, in my improved form
of cam cylinder, it is important to have a uniform and properly adjusted tension,
for otherwise the needles will tend to bind or to shake about in their bearings
according as to whether the tension is too great or not sufficient. But by the use
of the take-up mechanism which I have described and which is provided with so
many points at which it may be adjusted to the desired speed and power I am
enabled to regulate the tension of the goods with great nicety so as to secure the
best results from the cam cylinder and other parts of the machine.
I will now proceed to describe the operation of my machine :
As the needle cylinder revolves, carrying with it the frame A the cog wheel F
will travel around the track on the plate E, rotating the shaft G and its pinion /
engaging with the cog wheel N, which, through the clutch R, Z, will rotate the
shaft O and the four-armed cam J. Each arm of the cam, after raising the rod K,
by engaging with the friction roller k leaves the rod to the action of the spring M
which, against the tension of the cloth, rotates the roller D, through the ratchet
wheel X, pawl to and shoe p, and ratchet lever W. When the rod K has descended,
so that its roller k encounters the next arm of the cain J, it ceases to turn the
ratchet wheel X' through the ratchet u and shoe p, and the roller D would cease_

page_text: to revolve, or would be reversed by the tension of the cloth during the upward
stroke of the rod K, but for the ratchet operating upon the opposite side of the
ratchet wheel X. As soon as the upward stroke of the rod K begins, the ratchet
shoe r engages the ratchet wheel X being actuated through the pawl q, arm Q,
and rod P, and it continues to rotate the ratchet wheel X so long as the upward
stroke of the rod K continues, the length of its stroke being adjusted by changing
the points of connection of the rods, or the track upon which the cog-wheel F
travels, or both, as may be desired. The opposite pawl then comes into action
while v, 9, is taking up and the operation is repeated.
The strain upon the end of a single pawl is considerable and by making use of
the toothed shoe, pivoted to the end of the pawl I secure increased firmuess of
grip, and reduce the liability of slips and breakage.
If there is undue tension upon the roller D, the increased resistance through the
wheel X', pawls w, and rod K upon the four-armed cam J, will cause the toothed
clutch to expand, compressing the cushion S and allowing the cog-wheel N to
revolve faster than the shaft O and cam J until the resistance of the shaft O
and cam J is again overcome by the expansive power of the cushion S. The
resistance of the cushion S may be increased or diminished by tightening or
loosening the nut T behind it.
As the machine revolves, the needles form the loops for the goods, the absence
of breaks or joints in the cam race increasing the smoothness of the operation, and
the uniformity of tension allows of the perfect operation of the needles in my
improved cam cylinder.
VV are slotted arms secured to the sides of the take-up frame, and carrying the
upper roller B on which the fabric is finally rolled. The cloth travels down
behind the roller B, in front of the roller C, behind and under the roller D and
then up.
the front of all the rollers and over and around the roller B which is
rotated by the cloth as it is drawn down behind and under it. This construction
allows the roller B to travel upward and away from the roller C as the roll of
fabric increases in size, and to follow such a course that the fabric, descending from
the machine shall not be crowded out of a vertical course by the increase in size of
the roll of cloth on the roller B.
'By this construction I am enabled to locate the mechanism for turning the
take-up device, below, the roll of cloth, and to avoid all complicating machinery
about the cloth as it is descending, and as it is being rolled up."
I also secure a continuous feed, which is not so far positive in its motion as to
endanger the cloth by excessive tension, for the reason that any slight excess or
lack of tension occasioned by the direct acting pawl and shoes q, r, will be
compensated for by the succeeding spring-actuated stroke of the pawl w and shoe p,
and by the clutch imechanism preceding the four-armed cam J while the more general
adjustment of the tension may be regulated by shifting the cog-wheel F. from one
to another of the tracks 1, 2, 3, 4 or 5.
I would also point out that where so great a nicety of adjustment is not required
it is practicable to lower the rollers to the bottom of the frame, the rod O forming
the shaft of the roller D, in which case the four-armed cam and the mechanism
operated by it may be dispensed with; or the rod O and the parts carried by it
may be dispensed with, the four-armed cam being placed upon the shaft G and the
rod K being lengthened to engage with it in that position.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
(1.) The combination of a revolving take-up frame, a series of cloth rollerз
journaled therein, a ratchet wheel attached to the shaft of one of said rollers, two
pawl-arms journaled on said shaft and provided with pawls engaging with sail
ratchet wheel, a driving rod connected with one of said pawl-arms a connecting rod
connecting the other of said pawl arms with said driving rod, a coiled spring

page_text: operating to depress said driving rod, an anti-friction roller carried by the lower
end of said driving rod, a shaft journaled in said take-up frame, a four armed cam
carried, upon said shaft and operating against said anti-friction roller to inter-
mittingly raise said driving rod, a stationery series of concentric toothed tracks,
a shaft journaled in said take-up frame, a cog wheel thereupon, engaging with one
of said tracks, and rotating said last named shaft, and gearing for transmitting the
motion of said shaft to the shaft bearing the four armed cam, substantially as
and for the purposes set forth.
(2.) The combination of a revolving take up frame, a series of cloth rollers
journaled therein, a ratchet-wheel attached to the shaft of one of said rollers, two
pawl arms journaled on said shaft and provided with pawls engaging with said
ratchet wheel, a driving rod connected with one of said pawl arms, a connecting rod
connecting the other of said pawl arms with said driving rod, a coiled spring
operating to depress said driving rod, an antifriction roller carried by the lower
end of said driving rod, a shaft journaled in said take up frame, and carrying a four
-armed cam, which operates against said antifriction roller to intermittingly raise
said driving rod, a gear wheel loosely journaled upon said shaft, and provided with a
toothed clutch, a corresponding clutch upon said shaft, provided with a pin sliding
in a longitudinal slot in said shaft, an elastic cushion operating against the latter
clutch, a nut threaded upon said shaft, and operating to suppress said cushion, a
stationary toothed track, a shaft journaled in said take-up frame, a cog wheel
thereupon, engaging with said track and rotating said last named shaft and a pinion
upon said shaft engaging with the gear wheel upon the shaft carrying the four-
armed cam, substantially as and for the purposes set forth.
(3.) The combination of a revolving take-up frame A, provided with the slotted
arms V. V, a series of cloth rollers, D. C B, carried by said frame, a ratchet
wheel X carried upon the shaft of the roller D, two pawl-arms W. Q, journaled
on said shaft, and provided with the pawls w. 9; and shoes p. r. engaging on
opposite sides of said ratchet wheel, a driving rod K, pivoted to the pawl-arm W,
a connecting rod P, connecting the pawl arm Q with the driving rod K, guides L,
to guide the rod K a coiled spring M around said driving rod and operating to
depress the same, a collar i and set screw n to regulate the tension of said spring,
au anti-friction roller, k, carried by the lower end of said driving rod K, a shaft O,
journaled in bearings in said take-up frame, a four armed cam J carried upon said
shaft and operating against said anti-friction roller to intermittingly raise said
driving rod K, a stationery series of concentric toothed tracks E with intervening
grooves, a cog wheel F adjustable upon the shaft G, and provided with the set
screw g, and travelling upon one the said tracks and adjustable from one to another
thereof; the pinion wheel, h, cog wheel N, clutch R, clutch Z provided with the
pin r, cushion S, nut T, the shaft O, being provided with the groove o. substantially
as and for the purposes described.
(4.) The improved take-up device consisting of track E cog wheel F, shaft G,
pinion, h, cog wheel N. clutch R, clutch Z, provided with the pin r, cushion S, nut-T,
shaft O provided with the groove o, the same operating to revolve the rollers B, C
and D, whereby the actuating mechanism is enabled to be placed below the roll of
cloth, substantially as and for the purposes set forth.
(5.) The combination in a take-up device of the track E, cogwheel F, shaft G,
pinion, cogwheel N, clutch R, clutch Z provided with the pin r, cushion S, nut T,
shaft O provided with the groove o, and mechanism for transmitting the motion of
the shaft O to the rollers B, C and D, and the inclined slotted arms V. V carrying
the roller B whereby the actuating mechanism is enabled to be placed below the
roll of cloth, substantially as and for the purposes set forth.
(6.) The combination in a knitting machine of a cam cylinder consisting of the
ring Y ring u, rods c and d, the needle cylinder, a take up frame carried by said
needle cylinder, a series of cloth rollers journaled therein, a ratchet wheel attached
to the shaft of one of said rollers, two pawl-arms journaled on said shaft and
provided with pawls engaging with said ratchet wheel, a driving rod connected with

page_text: one of said pawl arms, a connecting rod connecting the other of said pawl-arms
with said driving rod, a coiled spring operating to depress said driving rod, an anti-
friction roller carried by the lower end of said driving rod, a shalt journaled in.
said take up frame, a four armed cam carried upon said shaft and operating against.
said anti-friction roller to intermittingly raise said driving rod, a stationery series
of concentric toothed tracks, a shaft journaled in said take up frame, a cog wheel
thereupon, engaging with one of said tracks and rotating said last named shaft, and
gearing for transmitting the motion of said shaft to the shaft bearing the four-
armed cam, substantially as and for the purposes set forth.
(7.) The improved cam cylinder consisting of the ring Y, ring u, and rods c and ď
substantially as and for the purposes set forth.
(8.) An improved cam cylinder, having the cam race formed between two bars.
or rods fastened to the inner surface of the cylinder, substantially as and for the
purposes set forth.
Dated this 1et der of October 1895.
HERBERT HADDAN & Co.,
18 Buckingham Street, Strand, London, W.C., Agents to Applicant.