Improvements in Spinning and Twisting Machine Spindles and Supports for the same.
Year: 1892

page_text: Date of Application, 16th Aug., 1892-Accepted, 15th Oct., 1892
COMPLETE SPECIFICATION.
Improvements in Spinning and Twisting Machine Spindles and
Supports for the same.
I, HENRY FRANCIS WOODMANCY, of Church Street, Whitinsville, in the
County of Worcester, State of Massachusetts, United States of America,
Machinist, do hereby declare the nature of my invention for "IMPROVEMENTS
IN SPINNING AND TWISTING MACHINE SPINDLES AND SUPPORTS FOR THE
SAME," and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement, reference being had
to the accompanying drawings forming part of this Specification :-
This invention has reference to improvements in spinning and twisting machine
spindles and supports for the same.
The object of this invention is to produce a spindle for spinning and twisting
machines adapted to be run at a high speed and so perfectly true that, at all points
of the reciprocation of the ring-rail, the spindle will revolve in the ring, so that
the yarn will be exactly concentric with the ring and the draft on the traveller at
all points of the ring uniform.
The object of the invention is also to produce a support for spindles in which
the doffer-guard, while holding the spindles in place during the removal of a
bobbin, may be readily operated to allow the removal, from the bolster and case,
of the spindle, whirl and sleeve.
Another object of the invention is to produce a spindle-support provided with a
doffer-guard which may be automatically operated by the downward movement of
the whirl to allow the insertion of the spindle in the bolster and to lock the same
in place.
The further object of the invention is to provide a spindle-support having a
rigid arm closely approaching the circumference of the whirl by which the driving-
band is prevented from slipping off the whirl.
Finally the object of the invention is to provide a spindle-support with a reservoir
adapted to contain a lubricating material and connected with the interior of the
bolster-case.
The invention consists in the peculiar and novel construction of a bolster-case
having a cylindrical tubular extension above the supporting-flange and oil-cup, a
rigid combined bolster and step tube rigidly secured at its lower end in the bolster-
case and firmly held against lateral motion at or near its upper end, and a spindle,
having a long bearing of uniform diameter in the bolster, provided with a sleeve-
whirl surrounding the upwardly-extending tube of the bolster-case and the spindle-
bearing.
The invention also consists in the peculiar and novel construction of the doffer-
guard and the tubular-post to which the doffer-guard is pivoted, together with other
novel features of construction and combination of parts which will hereinafter be
more fully described and pointed out in the claims.
To enable others to clearly understand my invention, I will say that my aim has
been to construct a spindle-support, as near as it is practical, of one piece and to
give the spindle a rigid bearing of considerable length; after a series of practical
tests, I constructed a number of such supports by firmly securing a rigid bolster
and step tube, by a tapering driven fit at the bottom, in the bolster-case and
supporting the upper part of the combined bolster and step tube at some place on
its upper part in the bolster-case, so as to produce a rigid support for the spindle.

page_text: I have given the spindle a long cylindrical bearing in this support and surrounded
this bearing and the upper end of the bolster-case with the whirl.
Figure 1 represents a view of the improved spindle and its support, also showing
the doffer-guard pivoted to the tubular-post.
Figure 2 represents a vertical sectional view of the same to more clearly show
the construction of the improved spindle-bearing and its support and to indicate
the operation of the same.
Similar numbers of reference designate corresponding parts throughout.
In the drawings the spindle is provided with the sleeve-whirl 6 and has the
long cylindrical-bearing 7 of uniform diameter and extending above and below the
center of the whirl,--the foot of the spindle rests on the step 8. The spindle is
supported in the combined bolster and step tube 9 the lower end 10 of which is
slightly tapering and fits into the slightly-tapering socket 11 in the lower end of
the bolster-case 12 into which it is forced, or driven, and so firmly secured that the
bolster and step tube and the bolster-case are practically as if made in one piece.
The upper part of the combined bolster and step tube is made to fit the upper part
of the bolster-case so as to form a close sliding fit.
The bolster-case 12 has the downwardly-projecting portion provided with the
enlargement 13, which forms an oil-chamber surrounding the bolster and step
tube this oil-chamber is connected with the interior of the combined bolster anıl
step tube by holes, or openings, in the wall of the bolster and step tube, so
that the oil flows freely into the same and is thus applied to the spindle-
bearings.
The portion of the upper part of the combined bolster and step tube in contact
with the bolster-case may be provided with vertical channels or grooves by which the
oil raised up by the rotation of the spindle is permitted to run down again into
the oil-reservoir. The bolster-case is provided with the tube 14 extending above
the upper end of the combined bolster and step tube 9. The sleeve-whirl extends
over the upwardly-extending tube 14 and surrounds the same as well as the long
cylindrical-bearing of the spindle.
The bolster-case is provided on a portion of its outer surface with a screw-thread
by which it is secured in a perforation of the bolster-rail of a spinning or twisting
machine, above this threaded portion is formed a flange 15 extending from one
side of which is a hollow-arm, the interior of this arm being connected with the
enlargement 13. Extending from the upper portion of the arm 16 is a hollow
vertical-post 17, and at the upper portion of this post and formed in part there-
with is the inwardly-extending bracket 18, this bracket may extend inward
sufficiently to just clear the edge of the whirl and has upwardly-projecting ears
between which is pivoted the arm 19 having the inward projection 20 to form the
doffer-guard and on its outer end the counterweight 21 shaped to serve as a cap, or
cover, for the open end of the post 17.
The perforation of the vertical-post 17 and the arm 16 being continuous from
the upper end of the post to the interior of the bolster-case serves as a reservoir
for lubricant which may enter the bolster-case and, through suitable openings in
the bolster and step tube, is admitted to the spindle-bearing.
When a bobbin is placed on the spindle its lower inner surface is engaged by
the whirl-sleeve, which prevents the bobbin from being pushed down sufficiently to
be caught by the doffer-guard,-on removing, or doffing, the bobbin from the
spindle after being filled, the engagement of the bobbin with the whirl-sleeve
tends to lift the spindle and whirl from the bolster, but, after a slight upward
movement, the whirl comes in contact with the doffer-guard 20 and further upward
movement is prevented, the bobbin is drawn off from the spindle and the spindle
and whirl fall back into place. If the spindle is to be removed from the bolster,
by simply lifting the weighted end of the pivoted doffer-guard, as is shown in
dotted lines in Figure 1, the obstruction is removed,-when released the counter-
weight immediately falls back into place and again sets the doffer-guard.

page_text: An important feature of this invention is the ease and rapidity with which the
spindles may be inserted in place and the oiling-tube covered, requiring no attention
in turning the doffer-guard as at present, the simple insertion of the spindle being
sufficient, the doffer-guards opening automatically as the whirl passes them and
immediately closing after the whirl has passed. The spindle can be supplied with
oil while running, as the hinged doffer-guard can be lifted off the oiling-tube
without interfering with the whirl.
With the rigid support and the long cylindrical bearing of the spindle in the
same, the spindle runs mathematically perfect without the slightest wabbling or
uneasy motion, it runs perfectly with a tight band and as perfectly with a loose
band. The ordinary difference in the bobbins, or in the yarn-load, does not affect
the running of the spindle and this spindle essentially differs from all the spindles
constructed with the avowed idea to prevent the wabbling and gyration of the
spindle and its load by giving the same the capacity to wabble, for in this spindle,
no matter what the load may be, it is so firmly supported that it cannot yield to
the force of any unbalanced load, but must run on its axial center.
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 :-
Claim 1. A spindle-support, consisting of a rigid bolster-case adapted to be
secured to a bolster-rail, and a combined bolster and step tube; rigidly secured
at its lower end in the bolster-case and closely fitting the interior of the bolster-
case near its upper end, adapted to form a rigid support for the spindle, as
described.
2. A spindle for spinning and twisting machines having a long cylindrical
portion surrounded by a sleeve-whirl secured to the spindle above such cylindrical
portion, a rigid bolster-case extending upward within the sleeve-whirl and down-
ward below the supporting-flange, and a combined bolster and step tube, secured
at its lower part rigidly in the bolster-case, its upper part being in close contact
with the interior of the bolster-case, adapted to firmly support the spindle against
lateral or oscillating motion, as described.
3. The combination with the bolster-case 12 provided with the upwardly-
extending tube 14, of the combined bolster and step tube 9, having the conical-
pin 10 at its lower end adapted to be driven into the conical-socket 11, the upper
end fitting the bolster-case with a close sliding fit, and a sleeve-whirl spindle,
having a long cylindrical journal extending above and below the band-pull on the
sleeve-whirl, adapted to fit the long cylindrical bearing in the combined bolster
and step tube, as described.
4. In a support for spindles having the flange 15, hollow-arm 16 and vertical-
post 17 forming a communication with the interior of the bolster-case, the com-
bination therewith of a doffer-guard pivoted to the upper portion of said post, as
described.
5. In a support for spindles, having the flange 15, hollow-arm 16, vertical-
post 17, and the interior of the bolster-case and the ducts formed by the hollow-
arm 16 and hollow-post 17, the combination therewith of a doffer-guard pivoted to
the upper end of said post and having a counterweight adapted to serve as a cover
for the open end of the post, as described.
6. In a support for spindles, the combination with a rigid vertical post and a
bracket extending inwardly from said post, of a doffer-guard pivotally secure to
said bracket and supported on the upper end of the vertical post, as described.
7. The combination with a spindle, a whirl having a sleeve secured to said
spindle, a bolster containing the lower end of the spindle, and a bolster-case
surrounding the bolster, of a flange 15 surrounding the bolster-case and formed
in part therewith, the hollow-arm 16 extending outwardly from the flange, the
vertical hollow-post 17, a duct forming an oil-chamber and connecting the top of the

page_text: hollow-post with the interior of the bolster-case, the inwardly-projecting bracket 18,
and the arm 19 pivoted to said bracket and having the doffer-guard 20 and
counter weight 21, as and for the purpose described.
Dated this 28th day of June A.D. 1892.