An Improvement applicable to Self-acting Mules and Twiners.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
An Improvement applicable to Self-acting Mules and Twiners.
We, JAMES DEWHURST, of Green Lane Mill, Middleton Junction, in the County
of Lancaster, Cotton Spinner, and JOHN EDMUND BOTTOMLEY, of the same place,
Overlooker, do hereby declare the nature of this invention to be as follows:-
This invention relates to the strap fork or guide which is employed for shifting
the driving strap from the fast to the loose pulley (and rice versa) on the rim-
shaft of a self-acting mule or twiner and is more particularly applicable in cases
where a woven driving band or strap is employed, the object of the invention
being to facilitate the shifting of the strap from one pulley to the other and to
prevent cross winding or sideways drag.
It is usual in such cases to employ only one strap-fork or eye which is applied
to the driving strap at or near the driving pulleys on the rimshaft of the mule or
twiner, and not to have any corresponding strap fork or eye applied to the driving
pulley on the line shaft of the room and this causes a cross winding or uneven
sideways drag on the strap which is injurious more especially when a woven driv.
ing band is employed.
According to our invention we employ an additional strap-fork or eye at or
near the driving pulley on the line shaft, and preferably on the opposite side of
the axle or shaft, and we connect the two strap-forks or eyes together by means
of a rod or bar which extends from one to the other, the rod being preferably
made in two parts united by an adjustable bracket, and the additional strap fork
at the top of the rod is also made adjustable.
The effect of this arrangement is that when the lower part of the driving band
is guided onto the fast or loose pulley of the rim-shaft in the ordinary manner as
required the upper part of the same is simultaneously moved in the same direc-
tion on the driving pulley or pullies on the line shaft so that all crosswise drag
upon the driving band is avoided and thus the "life" of the strap is prolonged.
Dated this 16th day of September 1898.
GEO. DAVIES & SON,
Agents for the Applicants. 4, St. Ann's Square, Manchester.
An Improvement applicable to Self-acting Mules and Twiners.
We, JAMES DEWURST, of Green Lane Mill, Middleton Junction, in the County
of Lancaster, Cotton Spinner, and JOHN EDMUND BOTTOMLEY, of the same place,
Overlooker, do hereby declare the nature of this invention and in what manner
Price S/1

page_text: the same is to be performed to be particularly described and ascertained in and by
the following statement:-
-
This invention relates to an improvement in the strap fork or guide which is
employed for shifting the driving strap either from the fast to the loose pulley,
or from the loose pulley to the fast pulley on the rim shaft of a self acting mule
or twiner. The object of our invention is to facilitate the removal of the strap
from one pulley to the other without cross winding or side drag, and is parti-
cularly applicable in cases where a woven driving band or strap is employed.
In the accompanying drawing our invention is shown applied. Fig. 1 repre-
sents the belt or strap on the fast pulley of a self acting mule or twiner, and
Fig. 2 represents the belt or strap removed therefrom on to the loose pulley by
the combined strap forks or eyes we employ in accordance with our invention.
For the purpose of removing the driving strap from one pulley to the other in
a self acting mule or twiner, a strap fork or eye acting on the driving strap near
to the pulleys on the rim shaft has hitherto been employed resulting in uneven
side drag on the strap, by which if a woven band is employed said band is quickly
destroyed.
According to this invention we employ in combination with the strap fork or
eye hitherto used such as b, an additional fork or eye as c fitted near to and pre-
ferably on the opposite side of the driving pulley d, and connect the said two
strap forks or eyes by means of a rod or bar that is formed in two parts as e
and which are adjustably united at or about the centre as shown at g. The
upper portion e of said rod or bar is suspended from either the rock shaft, a
bracket or a pivot as j placed a short distance from the driving pulley and a little
below the upper edge of the periphery of said pulley. The lower portion of
the aforesaid bar which is preferably cranked is united to the ordinary strap fork
or eye which is operated by the usual mechanism.
By this arrangement when the lower part of the driving band a is guided either
on to the fast pulley or the loose pulley k on the rim shaft in the usual way
as required, the upper part of said band is simultaneously moved in the same
direction on the driving pulley, in the manner shown in Fig. 2 on the drawing.
By these means all cross drag on the driving belt or strap is avoided and the
"life" of the strap is prolonged.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is :-
In combination with the ordinary strap fork or eye that is employed for remov-
ing the belt or strap from the fast to the loose pulley, and rice versa in self acting
mules and twiners, and operated by the usual mechanism the use of a second
strap fork or eye placed near the driving pulley and connected with the ordinary
strap fork or eye which is near to the pulleys on the rim shaft, by a bar or rod
that is formed in two parts as e and f and adjustably united at g for the purpose
and in the manner substantially as hereinbefore described.
Thatod 41 111
C T
1000