Improvements in and relating to Spinning Machines.
Year: 1895

page_text: Date of Application, 30th July, 1895-Accepted, 5th Oct., 1895
COMPLETE SPECIFICATION.
Improvements in and relating to Spinning Machines.
I, THOMAS GORMAN, of Warren, in the County of Bristol and State of Rhode
Island, United States of America, Spinner, 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 the manner of supporting the spindles of a spinning
nachine, and more particularly to the manner of mounting the bolster in the
olster rail. The primary object of the invention is to give to the bolster freedom
of movement in various directions, so as to enable said bolster and the spindle
supported therein to accommodate themselves to all the varying conditions to which
they may be subjected, whereby the spindle may be run at a high rate of speed
without chattering.
A further object of the invention is to secure the self-adjustment of the bolster
with relation to its spindle, whereby a close running fit between the spindle and its
bolster will be automatically maintained.
To these ends the invention consists in the combinations and arrangements of
parts hereinafter described.
Referring to the drawings,
Fig. 1 is a front view, partly in section, of a spindle and portions of the step and
bolster rails of a spinning machine;
Fig. 2 is a section on the line, r, of Fig. 1;
Fig. 3 is a plan view of a portion of the bolster rail, taken on the line y, y, of
Fig. 1; and
Fig. 4 is a modification of Fig. 1, and showing the bolster supported vertically
by the bolster rail.
B is a
A represents the step rail, having steps a of ordinary construction.
tapering spindle. C is the bolster rail, which is provided with holes or openings c
to receive the bolsters for the spindles. D represents the bolster, which, as shown
in the drawings, is provided with a tapering bore corresponding with the tapered
portion of the spindle B. The hole c in the bolster rail is made of somewhat
larger diameter than the external diameter of the bolster D, as shown in the
drawings, and so that said bolster may be free to move laterally in the bolster rail.
The upper end of the bolster D is, like the remainder of the bolster, of circular
shape, but is provided with one or more lugs or projections d, which lugs, when the
bolster is inserted in the bolster rail, loosely enter a recess or groove c¹ formed in
the upper surface of the bolster rail to receive said lugs, as shown in the drawings,
and thereby prevent the bolster from rotating with the spindle. These lugs may,
if desired, rest upon the bottom of the groove ¹, and the bolster D be thus
supported vertically, as shown in Fig. 4. If it is desired, however, to have the
bolster self-adjusting vertically to compensate for wear and to maintain a close
anning fit between the spindle and bolster, the groove c¹ in the bolster rail is cut
somewhat deeper and so that the lugs d will not rest upon the bottom of the groove,
the bolster being then supported vertically by the tapering portion of the spindle,
as shown in Fig. 3. When it is intended to have the bolster D supported vertically
by the lugs d resting upon the bottom of the groove in the bolster rail, it is
preferred, in order to enable the bolster to swing easily within certain limits in the
manner of a pendulum, to round the under side of each lug, so as to give to it more
or less of a U-form, as shown in the drawings. Cutting away the under side of

page_text: each lug so as to give it more or less of a V-shape, which is an obvious equivalent,
will serve the same purpose.
By the construction and arrangement of bolster and bolster rail above described,
it will be seen that the bolster is free to move in various directions with relation to
the bolster rail. Thus the bolster is arranged loosely within the bolster rail, so as
to bave a certain amount of lateral play therein. Again the bolster is free to rise
with relation to the rail. Again the bolster when supported vertically by the rail
is supported at or near its upper end, and is thus suspended so as to be capable of
swinging, within certain limits, in the manner of a pendulum, such swinging
movement being facilitated by the rounding or cutting away of the under side of
the supporting lugs. Again the bolster, while prevented from rotating with the
spindle, is free to turn to some extent in the bolster rail by reason of the fact that
the projecting lugs are loosely arranged in the groove which receives them, such
turning of the bolster being facilitated by the circular shape of the bolster at its
upper end, and the construction of the parts is such that all danger of the bolster
becoming cramped in the rail is avoided. As a result of the freedom of movement
thus given to the bolster, said bolster and its spindle are thereby enabled to readily
and quickly accommodate themselves to all the varying conditions to which they
may be subjected, and said spindle may be run at a high rate of speed smoothly and
without chattering, and especially so when the spindle is made to fit the bolster
with a close running fit.
Furthermore by employing a bolster with a tapering bore in combination with a
correspondingly tapered spindle, and by so mounting the bolster in the rail that
said bolster is not supported vertically by said rail, the bolster will be self-adjusting,
and in case of wear will serve to automatically maintain a close running fit between
the spindle and bolster.
The manner of combining the bolster with the bolster rail above described not
only leaves the bolster free to rise with relation to the rail in the operation of
spinning, but also permits the bolster to be readily inserted in and removed from
the bolster rail at any time, and likewise permits the spindle with its bolster to be
readily raised out of its step for cleaning or any other purpose.
I do not wish to limit the main feature of my invention to a tapering spindle and
a bolster having a correspondingly tapered bore, since it is evident that the
same may be likewise employed with a straight spindle and a bolster having a
straight bore.
Having now particularly described and ascertained the nature of my said inven-
tion, and m what manner the same is to be performed, I declare that what I
claim is:
1. The combination of a bolster rail provided with a groove or recess in its
upper surface, and a bolster arranged loosely within said bolster rail, said bolster
being provided at or near its upper end with one or more lugs or projections
adapted to enter the groove in the bolster rail and prevent said bolster from
rotating in said rail, substantially as described.
2. The combination of a bolster rail having a groove or recess in its upper
surface, and a bolster arranged loosely within said bolster rail so as to have lateral
play therein, and so as to be free to rise with relation to said rail, said bolster being
provided at or near its upper end with one or more lugs or projections adapted to
enter the groove in the bolster rail, whereby said bolster will be prevented from
rotating in said rail, but will be free to rise with relation to said rail, substantially
as described.
3. The combination of a bolster rail provided with a groove or recess in its
upper surface, and a bolster arranged loosely within said bolster rail, said bolster
being provided at or near its upper end with one or more lugs or projections
adapted to enter the groove in the bolster rail, said lugs being rounded or cut away
on their under side, substantially as described.
4. The combination, with a tapering spindle and a bolster rail, of a bolster

page_text: provided with a tapering bore to fit said tapering spindle, said bolster being loosely
arranged in the bolster rail and unsupported vertically by said bolster rail, and
meats for preventing the rotation of said bolster, whereby said bolster will be
self-adjusting to secure and maintain a close running fit between said bolster and
spindle, substantially as described.
5. The combination of a bolster rail provided with a groove or recess in its upper
surface, and a bolster arranged loosely within said bolster rail, said bolster being
provided at or near its upper end with one or more lugs or projections adapted to
enter the groove in the bolster rail and support said bolster vertically in said rail,
substantially as described.
6. The combination of a bolster rail provided with a groove or recess in its upper
surface, and a bolster arranged loosely within said bolster rail, said bolster being
provided at or near its upper end with one or more lugs or projections adapted to
enter the groove in the bolster rail and support said bolster vertically in said rail,
said lugs being rounded or cut away on their under side, substantially as described.
Dated this First day of June A.D. 1895.
THOMAS GORMAN.
Haseltine, Lake & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.