Improvements in Slubbing, Roving, and Intermediate Frames.
Year: 1895

page_text: Date of Application, 20th Sept., 1895
Complete Specification Left, 20th June, 1896-Accepted, 25th July, 1896
PROVISIONAL SPECIFICATION.
Improvements in Slubbing, Roving, and Intermediate Frames.
We JOHN MCQUEEN of the Firm of John Hetherington and Sons Limited, of
the Vulcan Works, Pollard Street, Manchester, in the County of Lancaster,
Machine Makers, and JOSEPH TURNER, in the employment of the said firm,
Mechanic, do hereby declare the nature of this invention to be as follows
:-
Our said invention refers to slubbing, roving and intermediate frames and relates
more particularly to means for controlling the double cone arrangement which is
used in such mechanism to vary the speed of the bobbins as the winding on
proceeds. As is well known to those acquainted with such machines the fork or
frame which shifts the belt on these concs to decrease the speed of the bobbins as
the winding on proceeds, is carried or operated by a sliding bar with a rack which
gears with a toothed pinion on an upright spindle having a hand wheel at the top
and worked by a ratchet wheel and pawls beneath. At present the automatic
action of this upright spindle is frequently interfered with by the person in charge
of the machine, and the ignorant exercise of this discretion often leads to bad work
by putting an over or insufficient amount of strain upon the yarn or rovings.
The object of our invention is to prevent this tampering with the rate of advance
of the sliding belt-fork and bar. At any convenient position on the upright spindle
we fix a ratchet wheel, and we pivot to a fixed part of the frame a ratchet pawl so
situated as to gear with the said ratchet wheel. The ratchet wheel and pawl are
so arranged that when in gear they prevent the sliding bar from being set back,
while at the same time not interfering with the automatic action of the ordinary
apparatus. In order to put it out of the power of the attendant to tamper with
this auxiliary ratchet wheel and pawl, we screw a bracket or cover to the frame
which boxes in and covers the pawl so that it cannot be moved out of gear with the
ratchet wheel. This protecting bracket might be made easily removable by the
overlooker or it might consist of a lock-up box accessible only through a cover or
door. When the bar has been fed forward to the full extent a catch on the bar
comes in contact with the pawl and lifts it away from the ratchet wheel allowing
the sliding bar to resile and again occupy its starting point. At the end of the
return movement of the bar another catch on the bar pushes the pawl again into
gear and the advance of the bar recommences under the former conditions. Thus
the advance of the bar during the working of the machine is effected by the
provided automatic means but as far as setting back is concerned, the bar cannot
be interfered with by the attendant. So long as means equivalent to those described
are provided to prevent the feed of the sliding bar from being tampered with we
do not confine ourselves to the indicated details and we might also arrange means
to prevent the bar from being manually set forward during operation as well as
from being set back.

page_text: Improvements in Slubbing, Roving, and Intermediate Frames.
We JOHN MCQUEEN of the Firm of John Hetherington and Sons Limited, of
the Vulcan Works, Pollard Street, Manchester, in the County of Lancaster,
Machine Makers, and JOSEPH TURNER, in the employment of the said firm,
Mechanic, 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 and accompanying drawings —
Our said invention relates to slubbing, intermediate and roving frames and relates
more particularly to mechanism for contr lling the lateral movement of the strap
driving the cone drums used in these machines to vary the speed of the bobbins as
each succeeding layer of yarn or roving is wound thereon.
As is well known to those acquainted with these machines the fork or frame
within which the belt moves has a lateral movement given to it during the making
of a set of bobbins and is carried or operated by a sliding bar with a rack fixed to
it which gears with a toothed wheel on an upright shaft having a hand-wheel for
winding the strap to the end of the drums previous to commencing a fresh set of
bobbins and the usual ratchet wheel and pawls acting in conjunction with the
change motion.
At present the automatic action of this upright shaft is frequently interfered
with by the person in charge of the machine, the result being strained yarn or
roving and bad bobbin ends."
The object of our invention is to prevent this tampering with the rate of advance
or lateral movement of the sliding belt fork and with it the belt and so prevent
those in charge of the frame from moving the belt back again until the full bobbin
is completed.
The improvement will be most easily understood by a reference to the annexed
sheet of drawings of which Fig. 1 is a front view of the mechanism, while Fig. 2 is.
a plan view of the same.
The aforesaid upright shaft is marked a and the sliding rack bar which carries
the fork to shift the belt on the cones is marked b.
The usual and well known means for automatically operating the upright shaft a
appear at the foot thereof and are marked X. Description of these means is
unnecessary as they are all well known and form no part of our invention. The
usual toothed wheel c on the shaft a gears with the rack b so as to move the rack
intermittently and automatically in the direction of the arrows when the frame is
at work. The shaft a also carries the usual pulley d with band and counter-balance
weight e all as now existing in frames of this nature.
In carrying out our invention we fix a ratchet wheelf upon the shaft a. We
also bolt a bracket g to some convenient fixed part of the frame, for example to
the rail h. We pivot to the said bracket a ratchet pawl i so situated as to gear
with the said ratchet wheelf. The ratchet wheel fand pawli are so arranged that
when in gear they prevent the sliding bar from being set back by the attendant
while the frame is at work, while revolution in the other direction is prevented by
the pawls of the apparatus X. In order to put it out of the power of the
attendant to tamper with this auxiliary ratchet wheel faud pawl i we screw a
cover k upon the bracket 9 which cover k boxes in and covers the pawli (see Fig. 2),
80 that it cannot be moved by the attendant, out of gear with the ratchet wheel i.
This protecting cover is secured to the bracket g by a screw / so as to be easily
removable by the overlooker; or the covering means night consist of a lock-up
box accessible only through a cover or door. In Fig. I the cover is shown removed
so as to indicate more clearly the pawl and its pivot. When the bar b has been
fed forward to the full extent, a catch m pivotted on the bar at m¹ comes in contact

page_text: with a projection it on the pawli and pushes the pawl away from
allowing the shaft a to be wound back by means of the hand wheel a' thereby
shifting the bar 6 back until it again occupies its starting point, in readiness for
commencing a fresh set of bobbins.
At the end of this return movement of the bar another catch n pivotted at n¹
on the bar encounters the projection on the pawli and pushes the pawl again into
gear with the ratchet wheel, the advance of the bar recommencing under the
former conditions. The pawl or stop i is subject to spring pressure at the back
holding it in whatever position it may occupy. The pivotted catches m, n trip over
the projection or and drop again into their normal position. By means of the
indicated arrangements the moving back of the bar 6 during the working of the
machine is effectually prevented, as the boxed-in pawl i cannot be tampered with by
the attendant.
So long as means equivalent to those described are provided to prevent the feed
of the sliding bar 6 from being tampered with, we do not confine ourselves to the
indicated details.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is.
1. In machinery of the indicated nature the provision of means for preventing
the cone belt fork sliding rack bar from being tampered with, substantially as
herein before described and shown.
2. In slubbing, intermediate and roving frames, furnishing the upright shaft
which operates the sliding rack bar with a ratchet wheel gearing with a ratchet
5 pawl or stop the said ratchet pawl or stop being covered or boxed in so as to be
inaccessible to the attendant, substantially as described and shown.
3. The arrangement referred to in Claim 2 in combination with means such as the
catches m, n for automatically placing the boxed-in ratchet pawl or stop in and out
of gear with the ratchet wheel substantially as described and shown.
Dated the 19th day of June 1896.