Improvements in Self Acting Mules and Twiners.
Year: 1895

page_text: Date of Application, 14th June,
Complete Specification Left 7th Dec. 1895-Accepted. 11th Jan., 1896
Date of Application, 14th June, J
Complete Specification Left 7th Dec. 1895-Accepted. 11th Jan., 1896
PROVISIONAL SPECIFICATION.
Improvements in Self Acting Mules and Twiners.
I, JOHN CLEGG, of Asa Lees and Company Limited, of Oldham, in the County
of Lancaster, Machine Makers, do hereby declare the nature of this invention to
be as follows:-
My invention relates to improvements in the bolsters or spindle bearings of self-
acting mules and twiners, and the chief objects of my invention are to give the
spindles greater freedom in their bearings, and also to improve the lubrication of
the spindles.
To accomplish my object I make each bolster of a separate piece of metal the
upper portion forming a collar of larger diameter than the lower portion;
the bolsters are fitted in a metal rail which is made in suitable lengths, and is
secured to the top rail of the carriage; the projecting portion of this rail is prefer-
ably made parallel with and a little below the other portion; suitable holes are
made in the projecting portion to receive the bolsters which are fitted loosely into
the holes and are supported by their enlarged collars which rest upon the rail; each
collar is partly flattened where it bears against the rail to prevent the bolster
turning.
In order to prevent the bolsters coming out of their position I form a small groove
in the lower portion of each bolster below the rail, to receive a split ring which
encircles the bolster and so prevents it from being lifted out of the rail whilst the
spindles are being doffed, or other means may be employed; or I may dispensé with.
the groove and the split ring by altering the section of the rail and under cutting
that portion of the rail which connects the upper and lower portions; the upper
collars of the bolsters are specially formed so that they will fit under the under cut
portion of the rail and cannot be lifted up so long as the spindles are in their footstep
bearings.
.
To improve the lubrication of the spindles I cover the bolsters with a brass or
sheet metal cover made in suitable lengths; this cover is slightly dished on its upper
surface and its ends are also turned up to prevent escape of oil; the metal round
the holes through which the spindles pass is turned downward so as to form channels
for the oil which drops into the bolster bearings.
Dated this 13th day of June 1895.
;
:
:
H. B. BARLOW & GILLETT,
17 St. Ann's Square, Manchester, Agents for Applicant.
CUMI LEIE DIUITIA
Improvements in Self Acting Mules and Twiners.
I, JOHN CLEGG, of Asa Lees and Company Limited, of Oldham, in the County.
of Lancaster, Machine Makers, 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 improvements in the bolsters or spindle bearings of self
acting mules and twiners, and the chief objects of my invention are to give the
1
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page_text: spindles greater freedom in their bearings, and also to improve the lubrication of
the spindles.
To accomplish my object I make each bolster of a separate piece of metal the
upper portion forming a collar of larger diameter than the lower portion; the
bolsters are fitted in a metal rail which is made in suitable lengths, and is secured to
the top rail of the carriage; the projecting portion of this rail is preferably made
parallel with and a little below the other portion; suitable holes are made in the
projecting portion to receive the bolsters which are fitted loosely into the holes and
are supported by their enlarged collars which rest upon the rail; each collar is
partly flattened where it bears against the rail to prevent the bolster turning.
And in order that my invention may be fully understood and readily carried into
effect I will describe the accompanying two sheets of drawings reference being had
to the figures and letters marked thereon.
Figure 1 is a transverse vertical section of my improved bolster bearing as applied
to a spindle.
Figure 2 is a plan view of part of Fig. 1 with part of the metal cover removed to
show the bolsters in position.
Figs. 3 and 4 are side view and plan respectively of one of the bolsters detached.
Figures 5, 6, 7 and 8 are similar views respectively to Figs. 1, 2, 3 and 4 of an
alternative construction of my improved bolster bearing.
Similar letters refer to similar parts throughout the several views.
In these views, a designates the top rail, b the front rail, and c the bolster rail,
the upper part of which is secured by screws d to the top rail a and the lower
projecting part is provided with holes to receive the smaller diameter of the
bolsters e, while the collars formed by the enlarged diameter rest on the upper
surface of the projecting portion of the rail c. The smaller diameter of each
bolster e is such that it fits loosely into its hole in the rail c and it is bored out
internally to fit a spindle f. Each bolster e has thus perfect freedom of movement
for self adjustment in the rail c and to prevent it from rotating with the spindle f
in one arrangement I cut away part of the metal so as to flatten one side as clearly
shown in Fig. 2, as well as in the detail views Figs. 3 and 4. Instead of cutting
away one side I may employ any other device to prevent the bolster rotating with
the spindle as for example I may fix a piu to form a projection on the bolster and
cause it to enter a slotted groove in the rail or vice versa.
In the alternative arrangement illustrated by Figs. 5 to 8 the rail c is undercut
at c¹ and the collar of each bolster e is formed with an inclined projection e¹ to fit
under the undercut portion c¹ of the rail c so that the bolsters e cannot be rotated
nor can they be lifted up so long as the spindles fare in their footstep bearings.
In my Provisional Specification I described the use of a split ring fitted in a
small groove in the lower portion of the bolster e below the rail e to prevent the
bolsters being lifted out of the said rail whilst the spindles are being doffed; but in
practice I do not find such a device necessary although I retain my right to use the
same if desirable.
To improve the lubrication of the spindles I prefer to cover the bolsters e with a
brass or sheet metal cover 9 made in suitable lengths; this cover is slightly dished
on its upper surface and its ends are also turned up to prevent the escape of oil;
the metal round the holes through which the spindles fpass is turned downward
at o' so as to form channels for the oil which drops into the bolsters e which are
preferably dished at e³ as shown, to receive the oil.
By fitting each bolster e loosely in or on the bolster rail it is obvious that it has
a certain amount of freedom of movement whereby each bolster is rendered
automatically self adjusting.
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 arrangement use and application of a bolster fitted loosely in or on the

page_text: bolster rail, in such a way as to be prevented from rotating with its spindle and yet
retain a certain freedom of movement for self adjustment.
2. The combination with the bolster rail, of a bolster fitted loosely in or on said
rail so as to be capable of self adjustment, and means such as a flattened side or
equivalent device for preventing said bolster from rotating with its spindle substan-
tially as herein described.
3. The combination with the bolsters e, of the metal cover 9 dished on its upper
surface and with the metal round the spindle holes turned downward at g¹ to guide
the lubricant on to the bolsters and so to the spindles substantially as herein shown
and described, for the purpose specified.
4. The combination and arrangement of parts substantially as and for the purposes
herein described and as illustrated by Figs. 1 to 4.
5. The combination and arrangement of parts substantially as and for the purposes
berein described and as illustrated by Figs. 5 to 8.
Dated this 6th day of December 1895.
H. B. BARLOW & GILLETT,
17 St. Ann's Square, Manchester, Agents for Applicant.