Improvements in or relating to Self-acting Mules and Twiners.
Year: 1894

page_text: PROVISIONAL SPECIFICATION.
Improvements in or relating to Self-acting Mules and Twiners.
I, JOSEPH MOORHOUSE of 15 Oak Street, Shaw, near Oldham, in the County
of Lancaster Mill Manager, do hereby declare the nature of my said invention
to be as follows :-
"
My improvements refer to self-acting mules and twiners used in the preparation
of cotton and similar yarns and relate to the backing-off spring which when
charged or compressed by the sliding action of the rod on which it is
mounted and released by the usual releasing mechanism, puts the backing-off
friction into gear.
Hitherto a single spring only has been used of a close pitch and of considerable
strength which when compressed becomes practically rigid and non-elastic. Now
my invention consists in dispensing with the single spring and substituting
therefor a "duplex or compound spring, composed of two springs inter-coiled
with each other. The coils of both springs of this compound spring are of corre-
sponding pitch and diameter so that the coils of each spring have the same degree
of movement. These two springs are each by preference of lesser strength than
the single spring aforesaid, but their total strength is more or less the same, thus
affording a greater range of elasticity with the same strength of the single spring.
The strength of these springs may vary according to the power required.
In some cases I may employ three or more springs intercoiled with each other,
or instead of inter-coiling the springs I may arrange them one outside or inside
the other.
Dated this 27th day of February 1894.
Improvements in or relating to Self-acting Mules and Twiners.
I, JOSEPH MOORHOUSE of 15 Oak Street, Shaw, near Oldham, Mill Manager,
do hereby declare the nature of my said invention and in what manner the same
is to be performed to be particularly described and ascertained in and by the
following statement :-
My improvements refer to self-acting mules and twiners used in the preparation
of cotton and similar yarns, and relate to the backing-off spring which, when
"charged'
or compressed by the sliding action of the rod on which it is mounted
and released by the usual releasing mechanism, puts the backing-off friction into
gear.
"
Hitherto a single spring only has been used, of a close pitch, and of considerable
strength, which, when compressed, becomes practically rigid and non-elastic. Now
my invention consists in dispensing with the single spring and substituting therefor
duplex" or compound spring.
a
$6
The accompanying drawing illustrates my improved duplex" spring composed
of two springs (A) and (B) intercoiled with each other and surrounding the

page_text: These springs are preferably of corresponding gauge, pitch, diameter and temper
so that the coils of each spring have the same degree of elasticity and movement.
These springs are, by preference of lesser strength, or of greater elasticity,
respectively than the single spring hitherto used, but their total strength is about
the same, thus affording a greater range of elasticity with the same strength of
the single spring. The strength of these springs may vary according to the power
required. It will be obvious that a much greater variety of strengths may be
obtained by the use of two springs. To obtain a still further range of elasticity
I may employ three or more springs inter-coiled with each other, or instead of
intercoiling the springs I may arrange them one outside or inside the other.
Having thus 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 :-
:―
"
In self-acting mules and twiners the use of a "duplex
"triplex
spring mounted on the backing-off rod substantially as and for
herein before described and illustrated on the accompanying drawing.
Dated this 27th day of November 1894.
or compound
the purposes
JOHN G. WILSON & Co.,
Agents.