Improvements in Cap-spinning Frames.
Year: 1895

page_text: Date of Application, 21st May, 1895-Accepted, 22nd June, 1895
COMPLETE SPECIFICATION.
Improvements in Cap-spinning Frames.
I, ABRAM WHITAKER, of 569 Atwell's Avenue, in the City of Providence,
County of Providence, State of Rhode Island, United States of America, Mill
Superintendent, do hereby declare the 'nature of tny invention and in what manner
the same is to be performed, to be 'particularly described and ascertained in and
by the following statement:
This invention relates to improvements in that class of machines known as cap-
spinning frames, in which the yarn passes from the rolls to the spool, or bobbin
over a cap mounted on the upper end of the spindle.
The object of the invention is to improve the finish on the yarn.
Another object of the invention is to so confine the yarn in its passage over the
cap that the ballooning of the yarn is prevented by a finishing surface, whereby
the speed of the bobbin or spool may be increased.
Another object is to so construct a device for preventing the ballooning of the
yarn that the cap, and bobbin, or spool, is readily accessible while a finishing
surface is provided for the yarn.
The invention consists in surrounding the cap with a yarn-confining device
supported independently of the cap and extending for practically the length of
the cap.
The invention also consists in the peculiar construction of the yarn-confining
device and in its combination with the cap and with supporting means.
Figure 1 represents a view of one form of the yarn-confining device.
Figure 2 represents a vertical sectional view of portions of a cap-spinning
machine showing the yarn-confining device secured in place.
Figure 3 represents a plan view of portions of the same showing two caps with
the yarn-confining devices shown in relation therewith, the spaces between the caps
and the confiners being exaggerated.
Similar numbers of reference designate corresponding parts throughout.
In carrying my invention into 'practice I surround the cap at the upper end of
the spindle with a yarn-confining device which is in the nature of a separator in so
far that it prevents the ballooning of the yarn passing through the confining device
to spool or bobbin. The confining device, in practice, has, however, been found to
possess other functions than that of preventing the undue ballooning of the yarn,
serving as a finishing surface against which the yarn is brought in contact by the
centrifugal motion of the spool or bobbin, while at the same time the drawing of
the yarn, by its being taken up on the spool, gives a downward movement
on the inner surface of the confining device, this results in a lengthwise
rolling of the yarn on the inner surface of the confiner and consolidates the fibers
of the yarn, producing a smoother finish than in the 'ordinary manner.
contact of the yarn thus described also results in a slight frictional resistatice to
its passage to the spool whereby the yarn is wound tightly thereon and it is found
that more yarn can thus be wound on the spools. In practice it is also found that
loose fibers, which in the ordinary manner of cap-spinning became separated from
the yarn as it passed from the rolls to the spools or bobbins and floated about the
room to the detriment of the machinery, herein are confined until they are
consolidated with the main portion of the yarn.
The
In the drawings 5 represents a portion of the frame of a cap-spinning machine,―
6 and 7 are rolls which are journaled in brackets, as 8, secured to the frame of the
machine. 9 is the thread-board through eyes in which the yarn passes after
leaving the rolls, and 10 is the back-board.

page_text: The spindles 11-11 are secured in the usual manner below the outer portion of
the thread-board, on these spindles are mounted sleeves having whirls, as 12,
adapted to be driven by bands, in any well-known manner, to impart rotation to
the whirls and their sleeves and the spools or bobbins, as 13, carried by the whirl-
sleeves. At the upper end of the spindles are secured the caps 14-14 having
sufficient internal diameter to allow of the spools, or bobbins, being moved upward
into the caps during the building of the yarn on the spools, the lower circular
edges of the caps serving as guides for the yarn passing to the spools.
To the back-board 10 are secured cylinders which embrace the caps 14-14,
being of an internal diameter but slightly larger than the external diameter of the
caps, the distance between the cylinders and the caps may vary somewhat,
depending on the tension and finish desired to be on the yarn, the cylinder
extending for nearly the entire length of the caps so as to present a long contact-
surface to the yarn.
The preferred form of the confining device consists of a cylinder formed in two
concave parts 15 and 16 hinged together at the back, the part 15 being secured by
the arms 17-17 to the back-board, the part 16 has a lip 16' extending beyond the
hinge and forming a stop, so that when the parts are closed together this lip will
prevent the closing of the parts too closely on the cap, in the closed position the
free edge of the part 16 overlaps the corresponding edge of the part 15 in a direction
opposite to that in which the yarn moves around the cap 14 during the winding.
The yarn, or thread, a passes through the rolls 6 and 7 thence down through the
guide-eye in the thread-board 9 then between the cylinder and the cap 14 to the
spool 13. When rotation is imparted to the spool that portion of the thread
passing under the lower edge of the cap will be carried rapidly around the same
somewhat similar to the movement of the thread passing through the traveler in
ring-spinning, this revolution of the thread around the cap will cause a centrifugal
ballooning of the yarn between the cylinder and the cap which will cause the
contact of the same with the cylinder's inner surface, while the rotation of the
spool will cause the lower portion of the yarn in following the same to be inclined
from the perpendicular, assuming a spiral direction in its contact with the
cylinder and, no doubt, from time to time with the surface of the cap, this movement
of the yarn giving it rolling or rotative contact which will tend to consolidate the
fibers and exert a frictional tension on the yarn.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
Claim 1. In a machine of the nature described, a yarn-confiner formed of
concave sections pivotally secured together, in combination with means for
supporting the same so as to embrace the cap.
2. In a machine of the nature described, the combination with the spindle 11
supported in the machine, and the cap 14 mounted on the upper end of the spindle,
of a cylindrical yarn-confiner consisting of the concave part 15 provided with arms
by means of which it is secured to the back-board, and the part 16 hinged to the
part 15 and having the stop-lip 16'.
Dated this 23rd day of March A.D. 1895
ABRAM WHITAKER.
Haseltine, Lake & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.