Improvements in Spindle-steps and Bolsters for Spinning and like Machinery.
Year: 1893

page_text: Date of Application, 30th Nov., 1893-Accepted, 3rd Mar., 1894
COMPLETE SPECIFICATION.
[Communicated from abroad by EDGAR J. CARROLL, Mechanic, and WILLIAM
T. CARROLL, Manufacturer, both of Worcester, Massachusetts, United States
of America.]
Improvements in Spindle-steps and Bolsters for Spinning and like
Machinery.
1, DAVID YOUNG, Patent Agent, of the Firm of D. Young & Co., of 11 & 12°
Southampton Buildings, in the County of London, do hereby declare the nature of
this invention and in what manner the same is to be perforined, to be particularly
described and ascertained in and by the following statement :-
My invention relates especially to an adjustable step for spindles; and it consists
in certain novel features hereinafter fully set forth, the object being to produce a
simple, cheap and effective device of this character.
In the accompanying drawings,
Figure 1 is an elevation of a spindle showing my improved step in position, the..
rail being represented in section;
Figure 2, a vertical transverse section enlarged of the bolster showing a modifi-
cation of the step in elevation ;
Figure 3, a like view illustrating a modification in the construction of the step;
Figure 4, a sectional view illustrating a further modification in the step and
method of securing the bolster ;
Figure 5, an elevation showing the split-nut above the rail; and,
Figure 6, an elevation showing a modification of the step.
Like letters and figures of reference indicate corresponding parts in the different
figures of the drawings.
A represents the rail, and B the spindle. The main parts of the bolster D and
spindle are of the ordinary construction, the said bolster being secured to the rail
in the usual manner.
employ within the bolster a bushing b, shown in Figure 2, preferably
constructed of wood prepared in oil to avoid the necessity of lubricating the spindle
in the usual way.
The spindle is held out of frictional contact with the said bushing by means of
the step hereinafter described.
On the lower end of the bolster D below the rail, a bracket, H, is constructed;
the form shown in Figure 1 being off-set slightly from the spindle opening of the
bolster and comprising a right angle-iron. A spindle is fitted to rotate in the
said bracket, and bears on a screw, g, turned into the lower end of the said
opening.
On the upper end of the said spindle a horizontally arranged wheel, h, is mounted
and projects below the spindle opening of the holster D, in position to receive the
lower end of the spindle B, for which it forms a step. The wheel is constructed
of a composition of paper-stock or indurated fibre which is of extreme hardness.
For this purpose 1 use any of the harder compositions of indurated fibre, such as
a mixture of paper-pulp, saw-dust and hemp, consolidated under pressure with a
proper amount of albumen, gum or other suitable binding substance.
As the spindle B rotates, bearing on the side of the wheel h, the said wheel is
gradually set in motion by the friction of the spindle, continually changing the
point of contact therewith.
This wheel may be constructed of any material desired, but I prefer that
described, as I find in practice that it avoids the necessity of lubricating the step,

page_text: the peculiar nature of such material reducing the friction of the spindle thereon to
a minimum.
The wear resulting from the contact of the spindle is also greatly reduced by
the rotary movement of the step wheel. The said wheel can be adjusted vertically
to regulate the bearing of the spindle in its bushing by means of the screw g.
The bolster is exteriorly threaded at 50, and a split nut D2 is turned thereon
against the rail, any suitable flexible washer (as in Figures 2 and 4) being
interposed.
The nut has a solid base encircling the bolster from which two arms 51 project
in parallelism; the said arms at their ends being turned laterally into parallelism
with the base, curved, tapped and threaded to turn into the threaded portion of
the bolster.
This leaves a slot at 53 on opposite sides and its threaded portion is slightly less
in diameter than the threaded portion 50 of the bolster so that the arms 51 will
spread slightly and give spring tension to prevent the nut from turning off by
the jar.
In Figures 2 and 6 the bracket H has two pendant arms m.
In the form shown in Figure 6 the wheel is arranged vertically and mounted
eccentrically on a thumb screw q.disposed in the said arms, the spindle B bearing
on the periphery of the wheel. By rotating the screw said spindle may be
adjusted vertically by the eccentric wheel.
In Figure 2 the said wheel is mounted on a shaft y, in openings in said arms m,
the said shaft bearing on the points of two screws f, turned through the lower
euds of the arms m, and held in position by check-nuts v.
The wheel in this form will be set in motion by the rotation of the spindle and
can be adjusted vertically by means of the said screws f.
The support has a flange 60, bearing on top of the rail and the split nut D' is
turned onto the bolster threaded below the rail to receive it. The washer j is
interposed and, by turning the nut slightly, all slack can be taken up.
is
The form of bracket H, shown in Figure 3, is similar to that in the form shown
in Figure 2, a wedge or block y, of the same material from which the wheel
composed, being inserted in the openings to serve as a step for the spindle B,
and resting on the screws f, whereby it is adjustable vertically. The said block
may be moved longitudinally to afford a new bearing for the spindle and is held
in position in the bracket by a set-screw.
In the form shown in Figure 4, the bolster has the flange 60, bearing on top of
the rail and is screw-threaded below the rail. The split nut D2 is turned thereon
and the washer j used.
The lower end of the bolster is reduced and screw-threaded exteriorly and is
also chambered vertically at g² the end of the spindle projecting into the said
chamber.
A bolt. m² is turned through the base of the nut D2, and has a smooth shank
projecting into the said chamber. The said shank supports a step 2 for the
spindle, which is adjustable by means of the bolt. A screw-cap 27 is turned onto
the bolster around the smooth sbank 25, and contains a packing 28, which prevents
leakage of oil when usual methods are employed for lubricating the spindle. The
nut D², prevents dismounting from the jar of the machinery.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, as communicated to me
by my foreign correspondents, I declare that what I claim is :-
1st. The combination, with a flanged bolster screw-threaded exteriorly, of a
split nut D2, turned onto the threaded portion.
2nd. A nut for clamping a spindle-bolster to the rail, comprising a base, two
arms projecting therefrom and curved into parallelism with the base, the said
curved portions being interiorly screw-threaded to turn onto the bolster,
substantially as set forth.

page_text: 3rd. The nut D' split at 53, in combination with the threaded bolster.
4th. A bolster having a spindle opening extending there-through and a screw-
bolt projecting into the lower end of the said opening and bearing a step for the
spindle.
5th. A spindle step constructed from a composition consisting of indurated fibre,
substantially as described.
6th. A spindle-step comprising a wheel journalled below the spindle opening of
the bolster, substantially as described.
7th. The combination of a spindle bolster with a wheel journalled thereon in
position to support the spindle, substantially as described.
8th. The combination, with a spindle bolster provided with an arm projecting
below the rail, a wheel journalled on the said arm in position to support the
spindle, the journal of the said wheel being vertically adjustable, substantially as
described.
9th. A bolster having a spindle opening extending through it, a bolt projecting
into the said opening and bearing a step for the spindle, and a packing held at
the mouth of the said opening around the bolt, all being combined substantially as
described.
10th. A bolster having an arın projecting below the rail, and an eccentric
wheel journalled in the said arm in position to act as a step for the spindle.
11th. A bolster provided with a bracket below the rail, in combination with a
block of indurated fibre forming a step for the spindle and adjustable in the said
bracket.
Dated the 30th day of November 1893.
D. YOUNG & Co.
11 & 12, Southampton Buildings, London, W.C.,
Agents for the Applicant.