IMPROVEMENTS IN DOUBLING MACHINES
Year: 1885

page_text: "
We, JOHN NIGHTINGALE and JOSEPH NIGHTINGALE, of Paterson, in the county
of Passaic, and State of New Jersey, United States of America, Iron Founders,
do hereby declare the nature of our invention for IMPROVEMENTS IN DOUBLING
MACHINES," and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
°
The object of our invention is to provide a reliable tension regulating mechanism
for doubling machines wherein a uniform tension is preserved on the several strands
employed in doubling. The invention consists in a tension device having a hub
and a lateral projecting arm secured to said hub or integral therewith, the arm
having an eye and being curved so as to run in line with the pin on which the
tension device is journaled and with the bobbin thereon. In combination with the
stopping and doubling devices which will be fully explained and pointed out in
the claims. Figure 1 of the drawing shows a portion of a doubling machine in
elevation, having our invention thereon.
Figure 2 shows in elevation a receiving bobbin and its connecting devices.
Figure 3 is a modification of that shown in Figure 1.
Figure 4 is an enlarged view of the tension device and
Figure 5 is a further modification.
E, represents a doubling machine, which machine has suitably secured thereto a
jack-board D. In the jack-board we arrange and secure a series of pins b, having
washers C, and 'shoulder C'; the washers C fit against the face of the board D,
while the shoulder C¹ prevents the bobbins contact with the tension device and
leaves the tension device A, entirely free to act promptly to preserve the uniformity
of the tension on the strand S. The arm a¹, of our tension device we arrange to
extend outward froin its hub far enough to give ample scope to the arm to prevent
the strand from becoming, slack by sudden changes of speed in the machine. In
the eye e of the tension device, we secure the lower end of a tripping cord d; the
upper end of said cord we secure suitably in an eye formed in the outer end of a
Price 1

page_text: stop lever f, which lever is pivoted on a pivot f¹; the inner end of the lever which
is slightly heavier than the outer end is arranged to engage a ratchet wheel i,
which wheel is arranged on a spindle B¹, which spindle is also provided with a
friction wheel i¹, as seen in Figures 1 and 2. Each one of the several tension
devices employed in doubling has a distinct tripping cord all of which cords are
secured in the eye of the lever f. The several tripping cords employed have
suitably connected with each of them a short link el; the opposite end of the
several links e¹, connect with their respective eye e, of the tension device, and act
to limit the downward as well as the upward movement of the arm a¹. The
friction wheel i¹, is arranged to be in frictional contact with a driving wheel h,
arranged on the driving shaft.
In the modified form shown in Figure 3, the rod k, takes the place of the
tripping cord, and its pins k¹, act to limit the downward movement of the arm a¹,
and trip the lever on the cessation of a thread, and the metal strap D¹, is secured
to the board D, and may be changed when desired to another machine. In the
modification shown in Figure 5, the strap D¹, is dispensed with and the tension
device is journaled on a stud having a screw e³, to screw in the jack-board in a
suitable position therefor, the stud having collars et, e, and screw e, and journal e7,
on which journals the device A, as shown in the said Figure 5. The machine is
provided with the usual rods B³, and transverse mechanism B³, as shown in
Figure 1.
The operation is as follows:-
The supply bobbins c, are placed in position on the pins b, which they are
adapted to fit, the strands to be doubled are taken from their respective bobbins c,
under the arms a³, of their several and respective devices A, and from thence.
upward to and over the rods B2, forward to and through the transverse guide B³,
where the several strands employed are brought together and the doubled strand
secured to the receiving bobbin B. The machine is supposed to be in motion; the
wheel h, rotates the bobbin B, which draws the doubled strand and winds the same
thereon under the influence of the transverse bar B³, which distributes the strand
over the length of the same; the flanges j, prevent the strand from leaving the
ends of the said bobbin B, while the same is being filled, with the doubled strand S.
As the unwinding of the strands S, from their several bobbins C, proceeds the
arms a¹, which rest on their several respective strands act to preserve uniformity
of tension thereon, and which on the cessation of a thread fall from their elevated
position sufficiently low to reach the limit of the link e¹, and by means of said link
engage the tripping cord d, of its own connection and trip the lever f, the outer
end of which is depressed, which action elevates the inner end of the lever causing.
the same to engage the ratchet wheel i, which stops the bobbin B, and the further
feed of thread. The links e¹, control the downward and upward movement of
the arm a¹, and hold the same in position for purposes of tension on the strand.
By this our invention the several strands employed are kept under uniform tension.
and the doubling devices automatically stopped on the cessation of a thread.
When the thread is restored the arm a¹, is elevated and rests on the restored
thread when the inner end of the lever f, falls from its engagement with the
wheel, which permits the rotation of the bobbin and starts the feed of thread.
Several sets of devices like that shown in Figure 1, may be in operation at the
same time on the same machine.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is
1. The combination with the tension device a, having arm a³, of the, pin b for
supporting the bobbin, the washer C, the shoulder C₁ for stopping the bobbins

page_text: inward motion, the jack-board D, the machine frame for supporting the devices,
substantially as and for the purpose set forth.
2. The combination with the tension device a, and pin b, of the tripping cord d,
the links e¹, the lever f, for engaging the wheel i, the pivot f¹, the rods B², the
transverse bar B³, with spindle B₁ as described, the ratchet wheel i, friction wheel i¹
for rotating spindle B¹, the driving wheel h, all operating substantially as and for
the purpose set forth.