Improvements in Means for Driving or Operating the Carriages of Spinning Mules.
Year: 1896

page_text: Date of Application, 30th June, 1896-Accepted, 13th Mar., 1897
COMPLETE SPECIFICATION.
Improvements in Means for Driving or Operating the Carriages of
Spinning Mules.
I, JOSEPH AUBRY, of 2 Spinnerei Strasse, Battenberg, in the Empire of
Germany, Chief Foreman 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 :-
+2
Heretofore the carriages of selfacting spinning mules bave been actuated by
means of cotton cords or ropes and by reason of the yielding of the latter, the
working or speed of the machine has been rendered extremely unsteady. This
unsteadiness of working was necessarily the more injurious, because with the
driving mechanism of the spinning mule carriages, there is a continuous variation
in. the speed. The result was many breakages of threads, entailing a badly spun
thread; and further the yarn produced was not uniform, but was to a very large
extent disfigured by projecting portions and loops or knots.
Now with the object of obviating the aforesaid and also other disadvantages
produced by the use of the mechanism heretofore employed for actuating the
carriages of self-acting spinning mules, a selfacting spinning mule carriage is
driven according to the present invention without the intervention of a rope or
cord, by means of a spindle which is suitably screw-threaded to correspond with
the driving velocity required.
The accompanying drawings illustrate the subject of the present invention.
Figures 1 and 14 being longitudinal sections through a selfacting spinning
mule.
.
Figure 2 being a plan thereof, and
Figures 3 and 34 end elevations of the machine.
In the framing a of the selfacting spinning mule there are mounted in bearings
one or more spindles b which are each formed with a screw thread corresponding
to the movement required of the carriage of the machine.
In the side frame c there is further mounted a shaft d which is arranged at right
angles to the spindle band which is provided with a fixed clutch e.
There are also mounted on the shaft d two laterally movable clutches f which
are moved into and out of gear with the fixed clutch e each independently of the
g which is
other by levers ii actuated by cams or eccentrics on the shaft
driven from another shaft a (Figures 1 and 34) through a train of spur
wheels a³, a³, a³, and bevel wheels g, g². By this means the rotation of the shaft d
is changed at certain intervals in one or the other direction, and this rotation is
transmitted to the spindle 6 by means of the bevel wheels k, l.
Referring to Figures 14 and 34, a disc d' is placed upon the shafts g, upon which
it is able to slide longitudinally against a spring d
The disc d' is provided with two projections d³, d³, diametrically opposite one
another.
As soon as the carriage has arrived at the end of its out-stroke it presses on the
end f, of the lever e which lever is pivoted at its middle point. This disengages
a projection f³ (on the other end of lever e) from contact with one of the
projections d d³ on the disc d' before referred to. When this happens the disc d¹
9 which
is forced by the spring into contact with a coupling 6' fixed on shaft
causes it to rotate until the other of the projections d² d³ is stopped by 3. Thus

page_text: the shaft g will have rotated for half a revolution. The same effect is produced
when the carriage has finished its in-stroke.
From the foregoing it will be understood that as the carriage reaches each end
of its stroke or travel the shaft g is caused to rotate for half a revolution and
therefore the cams h (which are arranged in opposite positions on the said shaft)
act upon the levers ii which throw the clutches ff respectively in and out of gear
with the clutch e.
The clutches ff receive their rotary motion as follows:-A shaft g¹ has its
bearing in the head-stroke frame c.
This shaft carries two toothed wheels h¹ hand driving pulleys
pulley 1.
and loose
The wheel h¹ through the medium of a single counter shaft drives the coupling
wheel fixed to one clutch f and the wheel " through the medium of two counter
shafts drives the coupling wheel e¹ fixed to the other clutch 7.
For producing different speeds the intermediate wheels are made interchangeable.
The toothed wheels gearing with the coupling wheels must of course be broad
because of the longitudinal movement of the latter.
Referring to Figures 12 and 3 the spindle b rests in a bearing m supported by
the carriage of the spinning mule and in its screw-thread there engages a tappet n
secured to the carriage. It is now clear that when the spindle 6 rotates in one or
the other direction, the carriage of the self-acting spinning mule is caused by the
action of the screwthreads to move forwards or backwards with a greater or smaller
velocity.
For the purpose of preventing breakages of the mechanism in the case of any
obstacle, the spindle is suspended so as to be longitudinally adjustable by means
of levers o and springs p. If any obstacle should intervene or be met with, the
shaft will move or be pushed in the opposite direction to that of the movement
of the carriage, and thereby by means of the levers rands throw the respective
clutch out of gear, and thus the spindle will be stopped. To allow of this movement
of the shaft b the wheel is arranged to slide along the shaft.
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 what I
claim is,―
1. Mechanism for driving the carriage of a self-acting spinning mule, comprising
one or more screw spindles b, which are cut with screwthreads to correspond with
the different speeds required of the carriage and which are caused by a clutch (e, f)
that is shifted or reversed at regular intervals, to rotate alternately in the one and
in the other direction and thus to move the carriage directly and correspondingly
to and fro.
2. A form of construction of the driving mechanism for the carriage of self-
acting spinning mule, in which the adjustably arranged screw spindle is capable
of yielding in the direction of its length, so as to throw the driving clutch ef that
happens to be operative at the time, out of gear for the purpose of obviating
breakages of the mechanism, and accidents.
Dated this 30th day of June 1896.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.