Improvements in or applicable to Self-acting Mules for Preventing Snarling."
Year: 1892

page_text: Date of Application, 27th Oct., 1892
Complete Specification Left, 14th Jan., 1893-Accepted, 20th May., 1893
PROVISIONAL SPECIFICATION.
Improvements in or applicable to Self-acting Mules for Preventing
Snarling."
"i
I, JOSEPH MOORHOUSE of 15 Oak Street, Shaw, near Oldham, Mill Manager,
do hereby declare the nature of my said invention to be as follows:-
My invention relates to an improved device or combination of mechanism for
preventing snarling of the yarn in spinning mules and consists essentially of means
for imparting a slow delivery movement to the drawing rollers for a short period of
time on starting and immediately afterwards driving the said rollers at their normal
or full speed.
I have found that great advantages arise from this method of starting the
rollers by a slow movement in lieu of the method hitherto prevailing of allowing
the rollers to remain motionless until the carriage has moved a certain distance
out and then starting the rollers at their full speed in that the yarn is not
distressed to the same extent as heretofore owing to the "easing" movement of the
rollers.
In accordance with my invention I prefer to adopt the usual clutch box with its
frictional strap motion used for delaying the starting of the rollers but I add to the
before mentioned movement a train of wheel work mounted on
or about the
roller spindle and so proportioned that when the clutch box comes into gear this
train of wheel work drives the roller spindle at a slow forward speed until the
pegs inside the clutch box overtake the plate when the spindle is driven at its
full speed.
::
To permit of this last movement at full speed it will be necessary for the last
member of the train before mentioned to drive the roller spindle through a ratchet
and ratchet wheel whereof the ratchet wheel is keyed to the roller spindle whilst
the ratchet is affixed to the last spur wheel in which way the ratchet drives the
wheel when on the slow motion but is left behind when the roller spindle attains its
full speed.
Dated this 50th la
11040
COMPLETE SPECIFICATION.
Improvements in or applicable to Self-acting Mules for Preventing
Snarling."
66
I. JOSEPH MOORHOUSE of 15 Oak Street, Shaw, near Oldham, Lancaster,
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 invention relates to an improved device or combination of mechanism for
preventing snarling of the yarn in spinning mules and consists essentially of means
for imparting a slow delivery movement to the drawing rollers for a short period of
time on starting and immediately afterwards, driving the said rollers at their normal
or full speed.
I have found that great advantages arise from this method of starting the rollers
by a slow movement in lieu of the method hitherto adopted of allowing the rollers
to remain motionless until the carriage has moved a certain distance out and then
starting the rollers at their full speed in that the varn is not distressed to the same

page_text: :
extent as heretofore owing to the "easing" movement of the rollers when as
arranged according to my invention the slow movement at first and the quick
movement afterwards being imparted to them as described.
In carrying out my invention I find it advantageous to employ the usual clutch
box with its frictional strap motion used for the starting of the rollers, but I add
to the before mentioned movement a train of wheel work mounted on or about the
roller spindle and so proportioned that when the clutch box comes into gear this
train of wheel work drives the roller spindle at a slow forward speed until the
pegs" inside the clutch box overtake the plate or disc when the spindle is driven
at its full speed.
CL
In order to provide for this last movement at full speed I cause the last member
of the train before mentioned to drive the roller spindle through a ratchet and
ratchet wheel whereof the ratchet wheel is keyed to the roller spindles whilst the
ratchet is affixed to the last spur wheel in which way the ratchet drives the wheel
when on the slow motion but is left behind when the roller spindle attains its full
speed.
And in order that my said invention may be the more readily understood and
carried into practical effect I have hereunto annexed a drawing illustrating the
way in which 1, with advantage, apply my invention to the clutch box mechanism
of the drawing roller spindle of a self acting mule and with the aid of the
figures and letters of reference marked thereon I will now proceed to describe
the same.
Similar letters of reference denote similar parts in all the views.
Fig. 1 is a front elevation, Fig. 2 a plan, Fig. 3 a right hand end elevation
and Fig. 4 a left hand elevation of what I will call my improved "anti-snarling'
movement.
A is the clutch box for putting into motion the drawing rollers, of which the
member is formed upon the back of the bevil wheel B driven from the bevil
pinion in the usual manner. Within this clutch box is fitted the usual disc or
plate with fingers 2 keyed on the roller spindle J driven by the pins 3 projecting
from the other member 4 of the clutch box (seen more clearly in transverse
section Fig. 5). This member of the clutch box is also fitted with the frictional
strap 5 and weights 6 and 7 all of which will be clearly understood by those
conversant with the mechanism of self acting mules and it will be observed I make
no material change in this part of the mechanism up to this point, but to the
member 4 of the clutch box I add a spur wheel D cast or formed in one piece
therewith or affixed thereto which drives the spur wheel E fixed upon the shaft F
mounted in the bearing G which drives a smaller spur wheel H which in turn
drives a spur wheel I loose upon the roller spindle 3 but capable of driving the
same through the ratchet K and ratchet wheel L which latter is keyed upon the
roller spindle. It will be observed that the train of wheel work D, E, H, I there-
fore forms a slow motion, the relative values of which may be varied and provision
may be made in mounting the wheel work for varying it, but the proportion I have
illustrated would be about 75 per cent. of the normal speed of the drawing roller
spindles when my movement is in operation.
The action is as follows. Assuming the clutch box to be disengaged as in the
figure and the pegs 2 to be set back by the action of the frictional strap 5 and
weights 7 and 7, the member 4 of the clutch box A is now thrown into gear with
the member when the spur wheel B will drive the spindle J through the train of
wheel work D, E, H, I at the speed above mentioned and with it the drawing
rollers thus moving the said rollers at a relative slow speed until the pegs 3 over-
take and strike the fingers 2 within the clutch box when it will be obvious the
shaft will be driven at its full speed. The member 1 of the train of wheels will
be going at a slower speed than the spindle and the ratchet wheel L will thus
overrun the ratchet K which is provided to allow of this.
In this manner I drive the drawing rollers of a self acting mule at a relative
speed for a short distance of the outward run of the carriage and I have found

page_text: great advantages to arise therefrom not only in the avoiding of snarls but in the
production of better yarn in that the yarn is not distressed to the extent that it
has been heretofore by previous "anti-snarling" movements, the principle of which
has been motions for keeping the rollers entirely out of action for a brief space of
time after the carriage has begun its outward traverse at the beginning of each
draw.
Having thus particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I wish it to be understood
that do not confine myself to the relative proportions or dimensions of the parts.
on the accompanying drawing again instead of giving the primary slow movements
to the drawing rollers by the mechanism above described which I find advantageous.
in practice other equivalent mechanism providing for the required differential
velocities may as is obvious be employed and what I claim as my invention is
The employment for driving the drawing rollers of self acting mules of a slow
movement for a short time and then a quick full speed movement as and for the.
purposes described and as illustrated in the annexed drawing.
Dated this 9th day of December 1893.
JOHN G. WILSON & Co.,.
Agents for the Applicant.