Improvements in Spinning Spindles.
Year: 1895

page_text: Date of Application, 3rd Sept., 1895-Accepted, 5th Oct., 1895
COMPLETE SPECIFICATION.
Improvements in Spinning Spindles.
I HENRY DURELL KLOTS, a citizen of the United States, Silk Throwster of
165 Broadway, in the City, County and State of New York United States of
America, 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 :-
My invention relates to spinning spindles, particularly those used for spinning
silk, and has for its principal objects, to prevent injurious vibration of the spindle
due to an unbalanced load, to provide simple and practical means of withdrawing
the spindle whirl from the belt or other driver preparatory to stopping the spindle
by hand, as for making repairs, and to provide a simple and practical means of
retaining the spindle in and removing it from its bearings.
I attain the first mentioned object of my invention by applying to a spindle the
bearing of which is mounted yieldingly on the rail, an anti-vibratory spring, the
natural period of vibration of which is widely different from the rate of rotation
and vibration of the spindle due to an unbalanced load, the arrangement being
such that the spring will receive the vibrations of the spindle but, being free to
vibrate in accordance with its own period of vibration, will tend to vibrate at
variance with the spindle and thereby counteract and substantially neutralize the
vibrations thereof.
I, in some cases, assist in attaining the aforementioned object by providing the
spindle with an elastic spring between the bobbin-holding portion of the spindle
and the yieldingly mounted portion of the spindle-bearing, which spring will
transmit the local or sectional vibrations of the spindle to the yieldingly mounted
bearing so as to be neutralized by the anti-vibratory spring as before mentioned.
In many instances, also, I prefer to employ the novel inode of cushioning the
spindle bearings hereinafter fully described. In the case of a "dead" spindle,
that is, a spindle which is mounted to revolve externally on an internal bearing,
I prevent the injurious vibrations of the spindle by constituting the internal
bearing with an inherent elastic portion or spring between its bearing portion and
its portion which is mounted yieldingly on the rail, and I may or may not apply
the anti-vibratory spring thereto, in addition, as the inherent spring before
referred to will act nearly as well as the anti-vibratory spring to cause the upper
portion of the spindle blade to vibrate naturally at a rate at variance with that due
to its rotation under an unbalanced load and thereby to counteract and neutralize
said vibrations.
The second principal object of my invention above mentioned, that is, the
withdrawal of the spindle from the driver preparatory to stoppage by hand, I
accomplish by mounting the base-piece carrying the spindle and its bearings to
slide toward and from the belt or driver and providing a spring to press the
spindle-whirl against the driver, a cam or device to withdraw the base-piece from
the driver and an adjustable stop to limit the return of the base-piece and thereby
adjust the normal position of the spindle with respect to the driver.
In order that my invention may be fully ascertained, I shall describe in detail
the manner in which I carry the invention into practice and then point out the
various icatures of the invention in the claims.

page_text: Reference is to be had to the accompanying drawings forming part of this
Specification in which corresponding parts are designated by like letters in all
the figures.
Figure 1 represents in sectional elevation a "live" spinning spindle provided
with an anti-vibratory spring, an inherent spring, yielding bearings, and means for
withdrawing the spindle from the driver and for removing the spindle from the
bearing in accordance with my invention.
Figure 2 is a plan view of the same.
Figure 3 represents in sectional elevation another form of spinning spindle
provided with an anti-vibratory spring and an inherent spring in accordance with
my invention.
Figure 4 represents in sectional elevation a "dead" spindle provided with an
anti-vibratory spring and an inherent spring in accordance with my invention.
In Figure 1, A designates a spindle, B, its whil, C a belt or driver adapted to
normally engage the whirl and rapidly rotate the spindle, D the bolster-bearing of
the spindle, and E the spindle rail.
For withdrawing the spindle A from the driver C, preparatory to stopping the
spindle by hand for making repairs &c., I secure to the rail E, as by means of
screws, a detachable rail-piece F, provided with transverse guides G, in which I
mount to slide toward and from the driver guide-rods H fixed to a base-piece I,
which thus forms a movable portion of the rail, and carries the spindle and its
bearings, so that the spindle whirl can be moved to and from the driver C.
To hold the spindle whirl B yieldingly against the driver C, I connect the base-
piece I to the rail-piece F by means of springs J, and I mount in the base-piece I
adjustable stops K to abut against the rail-piece F and thereby limit the return of
the base-piece and fix the normal position of the spindle and whirl with respect to
the driver. For withdrawing the spindle and whirl from the driver, I employ a
mechanical device such as a lever-cam L, pivoted to the rail piece F and working
against the base-piece I, the cam L being connected in this instance to a treadle
rod M, so that the operator can with his foot depress the treadle and thereby
instantly throw the spindle away from the driver, whereon the spindle can be
easily stopped by hand for making repairs &c.
For mcunting the spindle bearing D yieldingly on the rail so as to accom-
modate the vibrations of the spindle due to an unbalanced load, I form the rail-
held base-piece I with a vertical oil chamber N surmounted by a circular box O
having a screw cover O', and I forn on the spindle bearing D an annular flange l',
between which and the bottom and cover, respectively, of the box O, I arrange
cushions of metallic, or of a non-metallic character as shown, the cushions
being properly compressed by screwing down the cover O¹. In the bottom of
the chamber N I likewise place a cushion R on which I rest loosely an indepen-
den step-bearing S for the foot of the spindle, the top of the step-bearing S
being concaved substantially on a sphere having its centre at the middle of the
bolster bearing cushions Q, so that the foot of the spindle is free to wander and
vibrate laterally in all directions as the bolster bearing vibrates on its cushions Q
under an unbalanced load. The top of the cushion cover O is formed by
preference with a vertical tube 02, so as to better contain the lubricant, which
passes into the chamber N through an aperture ()³ formed in the cushioned
flange P.
By this arrangement the spindle and its bearings are perfectly insulated from
the spindle rail as the cushions Q and R prevent the transmission to the rail of the
vibrations due to the unbalanced load.
For retaining the spindle in and removing it really from its bearing, I form
the box-cover O1 with an annular ring S to receive the Hange S' on the lower end
of the spindle whirl, and pivot upon said ring S a semi-annular pla e S having a
recess S in its free end to swing over and retain the whirl-flange St, the recess S
engaging a headed stud S on the ring S, so that by withdrawing said plate S2,
the spindle can be easily uplifted from its bearings.
1

page_text: To counteract and neutralize the vibrations of the spindle and its yielding y
mounted bearing due to an unbalanced load, I employ an anti-vibratory spring,
which in this example of my invention, form by reducing and elongating the
spindle below its bearing D. so as to form a spring T having a period of vibration
different from that of the spindle due to its rotation under an unbalanced load,
and of a moment or power sufficient to overpower, the vibrations of the loaded
spindle and its bearing D. This spring T being held by the yieldingly mounted
bearing D will receive the rotatory vibrations of the spindle and, being set in
vibration thereby, will vibrate in accordance with its own note or period of
vibration so as to counteract and neutralize the injurious vibrations of the spindle-
under an unbalanced load.
In this instance of my invention, I have further provided the spindle with an
inherent spring U by reducing the spindle between the upper bobbin holding
portion of the spindle and the bearing portion of the spindle so that the local or
sectional vibrations of the spindle above the spring U will be transmitted by said
spring in the form of a resultant or bodily vibration to the yielding cushion or
mounting of the hearing and therethrough transmitted to the anti-vibratory
spring T which neutralizes the vibrations as before described.
In Figure 3, I have shown a spindle having the inherent spring U and au
external anti-vibratory spring t leaded to increase its power, the bolster and step
bearings being combined in a single tube, which is mounted yieldingly on the
spindle rail E and to which the anti-vibratory spring t is rigidly attached.
In Figure 4, I have shown a "dead" spindle, whose yieldingly mounted internal
bearing is prolonged and loaded to form the anti-vibratory spring t¹, and is reduced
between the bearing portion and the rail E, to form the inherent spring u, which
transmits the local vibrations to the anti-vibratory spring t. In some cases, how-
ever, the inherent spring u will neutralize the vibrations of the spindle without the
anti-vibratory spring t, and in a manner similar thereto, as the upper portion of
the spindle being free will vibrate on the inherent spring u in accordance with its
natural period of vibration, which, being at variance with the vibration due to its
rotation under the unbalanced load, will counteract and neutralize said rotatory
vibrations.
It is evident that my anti-vibratory spring may be applied and utilized in
many other ways to neutralize the vibration due to rotation under an unbalanced
load.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is-
1. The combination, with a spindle rail, a spindle and its bearing mounted
yieldingly on the rail, of an anti-vibratory spring held by the spindle bearing so as
to partake of the vibratory movements thereof, but free to vibrate in accordance
with its own period of vibration so as to counteract the vibrations of the spindle,
substantially as herein set forth.
2. The combination, with a spindle rail, a spindle, its bearing, mounted
yieldingly on the rail, and a spring interposed between the bobbin-holding portion
of the spindle and the portion of the bearing mounted yieldingly on the rail, of
an anti-vibratory spring held by the spindle bearing so as to partake of the
vibratory movements thereof but free to vibrate in accordance with its own period
of vibration so as to counteract the vibrations of the spindle, substantially as herein
set forth.
3. The combination with a spindle rail, of an internal spindle bearing mounted
yieldingly on the rail and provided with a spring between its bearing portion and
its rail-held portion and a spindle mounted externally on said internal bearing
portion, substantially as and for the purpose herein set forth.
4. The combination, with the spindle and its supporting and bearing tube
provided with an annular flange, of a base-piece provided with a circular box to

page_text: contain said flange a cover for said box, and cushions compressed between said
annular flange and the bottom and the cover of the box, substantially as herein-
before set forth.
5. The combination, with the spindle, and its supporting and bearing tube, of a
chambered base-piece, cushions by which the spindle bearing tube is held in the
base-piece, and a cushioned step-bearing for the spindle in the base-piece separate
from the bearing tube.
6. The combination, with the spindle rail and driver, of a spindle-carrying base-
piece movable to and from the driver, a device for withdrawing the base-piece
from the driver, a spring holding the base-piece against the driver, and a stop to
limit the return of the base-piece, substantially as hereinbefore set forth.
7. The combination, with the spindle rail and driver and the spindle-carrying
base-piece movable to and from the driver, of a pivotal cam to withdraw the base-
piece from the driver, substantially as hereinbefore set forth.
8. The combination with the spindle-rail and driver, of a spindle-carrying base-
piece mounted to slide toward and from the driver, and means for causing the
base-piece to slide toward and from the driver, substantially as herein before set
forth.
9. The combination, with the spindle and its whirl having a flange and the
spindle bearing, of a pivotal flange retaining piece having a recess in its end and a
headed stud to engage said recess and hold said retaining piece and whirl
substantially as herein set forth.
Dated this 2nd day of September 1895.
WM. P. THOMPSON & Co.,
Of 6 Lord Street, Liverpool, Agents for the Applicant.