Improved Means for Automatically Tightening the Rim Band of Spinning Mules.
Year: 1893

page_text: Date of Application, 22nd Feb., 1893
Complete Specification Left, 22nd Nov., 1893-Accepted, 23rd Dec., 1893
PROVISIONAL SPECIFICATION.
Improved Means for Automatically Tightening the Rim Band of
Spinning Mules.
WILLIAM ROBINSON of 51 Brompton Street Oldham, Mule Overlooker, do
hereby declare the nature of this invention to be as follows:-
Through the front of the headstock of the mule I have a worm on which is
a small toothed wheel or pinion. I have a special cross shaft on which is another
toothed wheel or pinion working in the first named wheel or pinion and on the cross
shaft I have a drum upon which is coiled the tightening band. The tightening
band is taken from the drum by a dead weight running over an ordinary band
pulley. I have also an angle bracket to hold the end of the cross shaft at the other
end of which cross shaft is an upright bracket fixed to the headstock.
Dated this 21st day of February 1893
WILLIAM ROBINSON.
COMPLETE SPECIFICATION.
Improved Means for Automatically Tightening the Rim Band of
Spinning Mules.
I, WILLIAM ROBINSON, of 51, Brompton Street, Oldham, in the County of
Lancaster, Mule-overlooker, 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 improved means for automatically tightening the rim
bands of spinning mules and has for its object to render the said means more simple
and reliable in action.
And in order that my invention may be more fully understood I have caused to
be appended hereunto one sheet of drawings marked with letters of reference
indicating like parts in the various figures.
Fig. 1 is a side view and Fig. 2 a front view of the portion of the headstock of a
spinning mule to which my improvements are applied.
In carrying out my invention and referring to the figures generally I form on the
worm or screw, known as the "tightening worm or screw," in lieu of a hand wheel,
a small toothed wheel a, see more particularly Fig. 2, projecting through the front
of the headstock b. In gear with the toothed wheel a is another wheel c secured
upon the front end of a cross shaft d mounted in bearings e attached to or formed
on the headstock b. Upon the cross shaft is secured a drum f upon which is
coiled the tightening band 9 which runs over two carrier pulleys & i suitably
suspended and at its free end is furnished with a dead weight k.
It will thus be understood that when the rim band becomes slack it is tightened
automatically by reason of the weight k on the band g causing the drum fand its
shaft d to turn and the toothed wheel c of the latter to impart rotary motion to the
pinion a in gear therewith employed in lieu of the aforesaid hand wheel which
heretofore required manipulating by hand.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim, is
"In means for automatically tightening the rim band of spinning mules."
1st. The general construction and combination of parts constituting my
improvements operating substantially as and for the purpose set forth,

page_text: 2nd. The tightening worm or screw furnished or formed. with a toothed wheel a
in combination with a drum shaft.digeared up with the toothed wheel a and
automatically rotated by means of a band g and weight k, substantially as and for
the purpose set forth.
Dated this 21st day of November 1893.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.