Improvements in Spinning Spindles and Bolsters therefor.
Year: 1893

page_text: Date of Application, 27th Apr., 1893-Accepted, 27th May, 1893
COMPLETE SPECIFICATION.
Improvements in Spinning Spindles and Bolsters therefor.
I, THOMAS WRIGLEY of Waterside House, Todmorden in the County of
York, Manager, 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:-
This invention relates to spindles for ringspinning frames and bolsters therefor
and consists in improved arrangements or constructions of said spindles and bolsters,
the object of my improvements being to bring the point on which the spindle
rotates approximately to the same level as the wharve and pull of the driving band,
so that the spindle and bobbin can freely tilt or tip in revolving as required by the
unbalanced load of the bobbin, and to prevent the throwing off of oil by the spindle
wharve.
On the drawing appended hereunto
Fig. 1 shows a section of the lower part of the improved spindle and of the
bolster, Figs. 2 and 3 showing modifications, on a scale somewhat larger than the
actual size.
Referring first to Fig. 1, A is the supporting tube or bolster, B the spindle,
C the sleeve wharve or whirl fixed on the spindle, and D a supporting post
arranged within the bolster A. The spindle B instead of being formed with a
footstep in the usual way, is bored out in its lower part and the post D enters the
In the upper
bore and is formed with a centre point on which the spindle revolves.
end of the bolster A a bush a is shewn, which I prefer to force tightly into the
bolster, but which may, if preferred, be fixed on the spindle and adapted for a
slight lateral motion in the bolster, or may be a portion of or fixed upon the sleeve
wharve Cas shewn on Fig. 3 and have the same motion. Although it is immaterial
whether this bushing a be tight or loose in the bolster, it is preferably fixed therein
so as to act as a guide for the spindle when put into the bolster. The bush a is
formed with two grooves lengthwise so that any oil which may be thrown off the
The lateral or
spindle just above the bush may percolate back into the bolster.
bolster bearing of the spindle with this arrangement is on the side of the post D
and lower end of the tubular part of the spindle, and the step bearing at the upper
end of the post and tubular part. I have found it preferable to have the upper end
of the post D approximately in the plane of the band pull, as shewn on the drawing,
and to have the tubular part of the spindle extending well down, the proportions
shewn being those preferred. The post D is preferably reduced in thickness
between the bearing parts to increase the capacity of the oil space. The bore of
the spindle B is slightly larger than the diameter of the post D but a nice easy fit
at the bottom end of the post so that the spindle can tip or tilt when rapidly rotated
as required by the unbalanced load of the bobbin, the film of oil always between
the post and inner side of the tubular part of the spindle acting as a cushion and
preventing the contact between said parts and the grinding or heating resulting
therefrom. Vent holes are made in the tubular part of the spindle to allow
circulation of the oil with which the annular space surrounding the spindle is filled.
The post D may be driven firmly into a bore hole in the lower part of the bolster A,
or may have a slight play in that bore, so that it does not revolve with the
spindle.
On Fig. 2 a modification of the arrangement of spindle is shown. Instead of
boring out the spindle so as to form a tube in the lower part, the sleeve wharve (
is formed with a long tubular extension e' taking the place of the tubular part of
the spindle. The latter extends into the sleeve wharve only to about the plane of
the driving band and may be formed with a countersink and the post D centre

page_text: pointed, but preferably the spindle is formed with a footstep b' and the post drilled
for the same as shewu.
The bolster A is formed with a middle sleeve a' extending well up into the
sleeve wharve C as usual but in addition I preferably provide the bolster A with
an outer shorter sleeve a² which extends into a deep groove formed in the
wharve C, which is extended downwards as shown. This arrangement is desirable
for preventing oil from being thrown off by the wharve. The oil thrown off by
the inner part of the wharve sleeve will collect in the cup formed by the sleeves a¹
and if this is wiped out from time to time no oil will get on the outer side of
groove and be thrown off. The tubular spindles and bolsters therefor described
herein before may however also be used without the sleeve a² and groove c².
Having now particularly described and ascertained my said invention and in
what manner the same is to be performed, I declare that what I claim is.
1. The arrangement or construction of spindles and bolsters substantially as
herein before described with reference to Figs. 1 and 3 of the drawings.
2. The arrangement or construction of spindles and bolsters substantially as
herein before described with reference to Fig. 2 of the drawing.
3. The arrangement of forming the spindle or the wharve fixed thereon with a
tubular part extending to near the bottom of the bore of the bolster and fixing a
post in the bolster entering into said bore on which post the spindle revolves,
substantially as hereinbefore described and illustrated by the drawings.
Dated this 25th day of Anril 1802
R. J. URQUHART,
57, Barton Arcade, Manchester, and 5, Clayton Square, Liverpool,
Consulting Engineer and Patent Agent.