Improvements in Self Acting Mules and Twiners.
Year: 1893

page_text: Date of Application, 30th Sept., 1893
Complete Specification Left, 28th June, 1894-Accepted, 28th July, 1894
PROVISIONAL SPECIFICATION.
Improvements in Self Acting Mules and Twiners.
I, JOHN CLEGG, of Asa Lees & 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 self acting mules and twiners and the chief object of my
invention is to save time in bringing the spindles to a dead stop before the carriage
bas completed its outward run and before backing off takes place and I effect this
object by mounting the tin roller pulley loosely upon the tin roller shaft and con-
necting it to the said shaft by means of a friction clutch which is connected to the
tin roller shaft by a disc fitted to the shaft.
The sliding friction clutch is actuated by a lever which is pivoted to the square
of the carriage at one end and at the other end carries an adjustable bracket.
This bracket as the carriage is completing its outward run comes in contact with
a stop fitted to the long. lever which stop forces the lever outwards and thus opens
the friction clutch and allows the tin roller to come to a dead stop before the
carriage completes its outward run. The next movement of the long lever
removes the stop and brings a recess in an arm or projection on the long lever
opposite the bracket on the clutch lever and a spring attached to the latter draws
it toward the long lever into the recess in the arm and so brings the clutch into
gear with the tin roller pulley, the mule is then in position for backing off.
Dated this 28th day of September 1893.
H. B. BARLOW & GILLETT,
Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in Self Acting Mules and Twiners.
1, JOHN CLEGG, of Asa Lees & 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 self acting mules and twiners and the chief object of
my invention is to save time in bringing the spindles to a dead stop before the
carriage has completed its outward run and before backing off takes place and I
effect this object by mounting the tin roller pulley loosely upon the tin roller shaft
and connecting it to the said shaft by means of a friction clutch which is connected
to the tin roller shaft by a disc fitted to the shaft.
The sliding friction clutch is actuated by a lever which is pivoted to the square
of the carriage at one end and at the other end carries an adjustable bracket.
This bracket as the carriage is completing its outward run comes in contact with a
stop fitted to the long lever which stop forces the lever outwards and thus opens
the friction clutch and allows the tin roller to come to a dead stop before the
carriage completes its outward run. The next movement of the long lever removes
the stop and brings a recess in an arm, or projection on the long lever opposite
the bracket on the clutch lever and a spring attached to the latter draws it toward

page_text: the long lever into the recess in the arm and so brings the clutch into gear with
the tin roller pulley, the mule is then in position for backing off.
And in order that my invention may be fully understood and readily carried into
effect I will describe the accompanying sheet of drawings reference being had to
the figures and letters marked thereon.
Figure 1 is a side sectional elevation, Fig. 2 a plan and Fig. 3 a sectional end
view of part of a self acting mule fitted with my improvements.
In the drawings, a represents the tin roller shaft, 6 a friction clutch fitted upon a
feather key in the said shaft and free to be moved thereon by a clutch lever c
pivoted upon a stud c¹ secured to the mule carriage i; to the free end of the lever c
is secured an adjustable bracket c and a spring d is also connected to the lever cat
one end and to the carriage i at the other. The grooved driving pulley e is
mounted on the tin roller shaft a and is hollowed out to receive the sliding friction
clutch b. The long leverf is pivoted as usual to the mule headstock hat fl and
near one end of this lever is secured an arm or stop piece g.
The action of the parts is as follows:-
:-
When the carriage is going out the friction clutch bis in gear with the grooved
pulley e and so drives the tin roller shaft a and the tin roller (not shown); just
before the carriage completes its outward run and before backing off takes place
the bracket c' comes against the stop piece 7 on the long lever and the lever c
is thereby moved back and withdraws the clutch 6 from the grooved pulley e
thereby stopping the rotation of the tin roller shaft a and allowing the tin roller
to come to a dead stop before the carriage has quite completed its outward run.
When the next change takes place the falling movement of the long lever f with-
draws the solid part of the stop piece g from and brings a recess therein opposite
to the projection c² on the lever e thus allowing the spring d attached to the clutch
lever c to draw the latter toward the long lever and so move the friction clutch b
into gear with the grooved pulley e on the tin roller shaft a thereby again setting
the tin roller in motion preparatory to the operation of backing off.
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 I am aware
that friction clutches have been employed prior to my present invention to drive
the tin roller shafts of self acting mules and twiners and I wish it to be clearly
understood that I lay no claim to the use of friction clutches for such purpose
broadly but what I claim is :-
1. A driving pulley mounted loosely upon the tin roller shaft, a sliding friction
clutch also on said shaft and operated by a clutch lever and spring, all in com-
bination with an arm or stop piece on the long lever whereby the sliding friction
clutch is automatically withdrawn from and moved into gear with the driving
pulley substantially as and for the purposes herein described and as illustrated in
the accompanying drawings.
2. The general construction, combination and arrangement of parts embodying
my improvements substantially as and for the purposes described and as illustrated
in the accompanying drawing.
Dated this 27th day of June 1894.
H. B. BARLOW & GILLETT,
17, St. Ann's Square, Manchester, Agents for Applicant.