Improved Mechanism for Arresting the Motion of Gill-boxes, Roving- frames, and like Machines used in the Treatment of Fibrous Substances.
Year: 1898

page_text: Date of Application. 30th June, 1898
Complete Specification Left 30th Mar 1800 Accented 10th June 1800
Complete Specification Left 30th Mar 1800 Accented 10th June 1800
PROVISIONAL SPECIFICATION.
Improved Mechanism for Arresting the Motion of Gill-boxes, Roving-
frames, and like Machines used in the Treatment of Fibrous
Substances.
I, ALBERT MITCHELL, of Upper Carr Mills, Liversedge, in the County of York,
Worsted Spinner, do hereby declare the nature of this invention to be as follows,
that is to say:-
The object of this invention is the production of means that may be
readily applied to, for the purpose of arresting the motions of, gill-boxes
(whether of the common kind or of those known as two or more "spindle-gills ")
drawing-boxes finishers and roving frames whenever there occurs any irregularity
or failing in the feeding and continuity of the fibrous substances thereby being
treated.
This object is attained in connection with all the varied forms of machines
(with the exception hereinafter described) by the employment of the well known
system of rotary-wiper shaft and detector levers that are used in machines known
astrap-twisters," these are however in accordance with this invention so modi-
fied in construction and arrangement as to fit them for use in the machines referred
to, although the conditions under which they have to operate are different to those
that exist in said "trap-twisters" (which are machines well known in the textile
industries).
As to the arrangement of the rotary-wiper and detector levers in gill-boxes, the
said rotary-wiper is mounted behind the drawing-off rollers and is so arranged
that the wheel through which it receives its rotary motion may slide laterally upon
it whenever the wiper is held against rotation by any of the detector levers as here-
inafter described, such lateral motion being transmitted thereto by a notched or
cam surface being formed upon its hub to mesh with a correspondingly shaped
surface on a disc or shouldered part of the rotary wiper. The lateral motion of
the driving-wheel referred to is arranged to cause the spring-operated belt-guide
to move from contact with the part retaining it against the tension of its spring
thus enabling said spring to effect the shifting of the driving belt from the fast
to the loose pulley thereby arresting the motion of the machine. When the parts
holding the wiper against rotation are removed, as when the operative has re-
adjusted the fibrous substances and detector levers, on the belt being again re-
turned by the operative to the fast pulley through the medium of the usual belt
guide mechanism, the wheel on the wiper will also be readjusted automatically
and so the motions of said wiper may recommence. The detector levers on the
said gill-box (as are those in all of the several classes of machines to which this
invention applies) are arranged in two sets or divisions, one set or division being
formed and so mounted in the machine as to press upon the sliver or thread just
as it emerges from the drawing rollers, while the other set of levers are for acting
in conjunction with the slivers or threads at a part or position prior to their
entrance into the machine. In both cases the levers are so counterbalanced by

page_text: adjustable weights or otherwise that the continuity or weight of the slivers or
threads against which their said weights press them or by which said slivers or
threads are supported against gravity, is necessary to keep said detector levers
from moving into contact with the wiper as and with the result above described,
and since said detector levers act both at the feeding of the machine and at the part
where the fibres treated are leaving same it follows that should any failing or
slackness in the slivers or threads occur at these places then the detectors would
operate thus bringing about the arresting of the machine's motion before any
damage could occur therein or before any considerable irregularity in the thick-
ness of the sliver or thread could be brought about.
In connection with each of the several machines the wiper-shaft is situated in
a somewhat similar position behind the drawing rollers in any respective machine
to that which it occupies as above described in connection with the gill-boxes,
but the detector levers are modified in shape as are also their bearings so that they
may meet the requirements of the different formations of the parts and varied posi-
tions of the threads they have to operate in conjunction with on the several different
classes of machines.
In the finisher and roving frames detector wires instead of levers may be used
by being mounted in proximity with the wiper-shaft which in such cases is some-
what further behind the drawing rollers than it is when levers are employed. The
forwardly extending levers when the position of the wiper is changed, are made
longer to suit the said altered position.
As an alternative method to the one hereinbefore described in connection with
"
gill-boxes, when the prevention of "wraps on the drawing rollers or gill-leathers
are alone desired to be prevented, it is only necessary to employ a supplementary
roller to rest upon the said upper drawing roller or gill-leather so that immediately
any of the fibres begin to wind around said drawing roller or gill-leather they will
raise said supplementary roller which, through the lever upon which it is mounted,
will move a projecting piece or pin into the path of motion of a lever, cam or the
like in such a manner as will cause same at such time to operate the belt shifting
mechanism to effect the stoppage of the machine.
Dated this 29th day of June 1898.
ALBERT
MITCHELL,
Per Samuel Hey, Agent.
Improved Mechanism for Arresting the Motion of Gill-boxes, Roving-
Frames, and like Machines used in the Treatment of Fibrous
Substances.
I, ALBERT MITCHELL, of Upper Carr Mills, Liversedge, in the County of York,
Worsted Spinner, do hereby declare the nature of this invention and in what man-
ner the same is to be performed, to be particularly described and ascertained in
and by the following statement, that is to say:-
means that may
The object of this invention is the production of
be readily applied to, for the purpose of arresting the motions of, gill-boxes
(whether of the common kind of cam-gill," or of those known as two or more
spindle-gills") drawing boxes, finishers and roving frames, whenever there occurs
any irregularity or failing in the feeding and continuity of the fibrous substances
thereby being treated.
In order that my said invention may be readily understood, I have hereunto
appended sheets of drawings illustrative thereof, in which;-

page_text: Fig. 1 is a sectional side elevation of a sufficient portion of a gill-box to illus-
trate the application thereto of my invention, in which arrangement the detector
levers are made to support the slivers both prior to same entering the machines,
and just as they are leaving same.
Fig. 2 is a front view and Fig. 3 a plan, of parts shown by Fig. 1.
Fig. 4 is a similar view to Fig. 1, but illustrates the application of my invention
to another class of gill-box well known.
Fig. 5 is a front elevation of parts shown by Fig. 4.
Figs. 6 and 7 are sectional end elevation and front view respectively, of portions
of a drawing-box" illustrating the application of my invention thereto, the detec-
tor levers in this case being acted upon by the slivers before same enter the machine
and again before they pass therefrom to be wound upon the bobbins.
Fig. 8 is an end elevation of certain of the parts shown by Fig. 7.
Figs. 9 and 10 are end elevation and plan of portions of a gill-box showing my
improved parts or mechanism as when used for preventing the formation of wraps
on the top drawing rollers.
Similar figures and letters of reference indicate similar parts throughout the
several views.
The object of this invention is attained in connection with all the varied forms
of machines (with the exception hereinafter described) by the employment of the
well known system of rotary-wiper shaft and detector levers that are used in
machines known as trap-twisters," these are however, in accordance with this
invention, so modified in construction and arrangement as to fit them for use in
the machines referred to, although the conditions under which they have to oper-
ate are different to those that exist in said "trap-twisters" (which are machines
well known in the textile industries).
As to the arrangement of the rotary-wiper and detector levers in the common
gill-box, the said rotary wiper a is mounted behind the drawing-off rollers b and c
and is so arranged that the wheel d (which may be driven from any suitable motor
part of the machine as by gearing wheels v, v, 2, from the shaft c¹ of the lower
drawing roller c, this latter being driven in the ordinary manner) through which
it receives its rotary motion, may slide laterally upon it whenever the said wiper
is held against rotation by any of the detector levers ef as hereinafter described,
such lateral motion being transmitted thereto by the notched or cam surface d
being formed upon its hub d¹ to mesh with a correspondingly shaped surface a
formed on the disc or shouldered part a¹ on the rotary-wiper shaft a. The lateral
motion of the driving wheel d referred to is arranged to cause, through the medium
of the levers and k, (pivotted at and respectively) the dislodgment of the
part m of the spring m from the notch m² (which can only be seen in Fig. 3)
which retains it against the tension of said spring, thus enabling said spring m to
effect the shifting of the driving belt from the fast to the loose pulley and thereby
arresting the motion of the machine by the means usually employed, such means
consisting of the arm and rod and lever connections n' and n².
When the parts
holding the wiper against rotation are removed, as when the operative has re-
adjusted the fibrous substances and detectors e and f, on the belt being again re-
turned by the operative to the fast pulley through the medium of the usual belt
guide mechanism operated by the handle ¹, the wheel d on the wiper shaft a* will
be also readjusted automatically by being forced back into its operative position
by the spring, and so the motions of the wiper a may recommence.
The detector levers ef in the said gill-box (as are those in all of the several
classes of machines to which this invention applies) are arranged in two sets or
divisions, one set or division f being pivotted on the part f3 and provided with
arms f and f, the latter of which supports the sliver or thread just as it emerges
from the drawing rollers be or gill leathers o, while the other set of levers e are
pivotted at and are provided with holders or supports for supporting the slivers
prior to their entrance into the machine. In both cases the levers e and fare so
arranged (by adjustable weights if or when necessary) that the continuity or weight

page_text: of the slivers or threads which they support is necessary to keep the ends e fo of
said detector levers from moving into contact with the wiper a as and with the
result above described, and since said detector levers c and f act both at the feed-
ing of the machine and at the part where the fibres treated are leaving same, it
follows that should any failing or slackness in the slivers or threads occur at
these places, then the detector e or ƒ would operate and thus bring about the
arresting of the machine's motion before any damage could occur therein, or before
any considerable irregularity in the thickness of the silver or thread could be
brought about.
In connection with each of the several machines the wiper-shaft a is situated
in a somewhat similar position behind the drawing rollers or gill-leathers in any
respective machine, to that which it occupies as above described in connection with
the common gill-box, but the detector levers e and f are modified in shape as are
also their bearings, as shown in the drawings, so that they may meet the require-
ments of the different formations of the parts and varied positions of the threads
they have to operate in conjunction with on the several different classes of machines.
In the drawings Figs. 6 and 7, illustrating the application of my invention to a
drawing box, the levers are pivotted at and are formed of the shape shown,
stop-pieces ff being used to limit their motion in each direction, while the
ends f of said levers are kept in their raised positions from falling into contact
with the wiper a by the fingers f being held down by the tension of the threads
or slivers.
Levers P mounted on a shaft and operated by the hand lever 72 are preferably
employed in connection with the levers to keep their ends fo out of contact with
the wiper a when the machine is being started, or until the fibres have gained
their proper tension. The levers e in this class of machine are preferably formed
of the shape shown, and are pivotted at 3 while they are held in the desired posi-
tions by the upright needles e¹ taking through slots in the parts and reaching
into contact with so as to be supported by the slivers or threads which pass through
them as shown. The needles e being of varied lengths to meet the requirements
of the varied positions of the several slivers, although only one length of needle &¹
is illustrated.
The shifting of the driving belt from the fast to the loose pulley is effected in
this case by the projections on the wheel d being moved, by the cam surfaces a
and, on the wiper shaft at until one or other of them comes into contact with
the lever d which has its pivotal centre at, d, the end of this lever releasing
the part m of the spring m by pressing it out of its notch in the manner old and
well known.
The formation of the several parts of my invention when applied to finisher
and roving frames is similar to that illustrated in connection with a drawing-
box, while if desired, in said finisher and roving frames detector wires instead of
levers may be used by being mounted in proximity with the wiper shaft which
in such cases is somewhat further behind the drawing rollers than it is when levers
are employed. The forwardly extending levers f, when the position of the wiper
is changed, are made longer to suit the said altered position.
"
As an alternative method to the one herein before described in connection with
gill-boxes and drawing-boxes when the prevention of "wraps on the top-draw-
ing rollers are alone desired to be prevented in these machines, it is only necessary
to employ a supplementary roller to rest upon the said upper drawing roller b
so that immediately any of the fibres begin to wind around said roller they will
raise said supplementary roller gy, which, through the lever q (pivotted at 3) upon
which it is mounted, will move the pendant arm q³, which hangs freely from its
pivotal pin qt, into the path of motion of the arm r¹ fixed upon the disc r, said disc
being mounted on the shaft and driven in any suitable manner as by means
of the pulleys w, wl and band was shown in broken lines Fig. 9 (or any lever or
cam arrangement may be used in place of these) said projecting piece 2 being
thereby caused to swivel upon its pin 2 and press the levers (pivotted at si

page_text: which transmits its movement to the levers hand thus causing the stoppage of
the machine as in the above cases. If desired the supplementary roller and
lever g may be mounted to operate in connection with the wiper d as shown by
Figs. 1, 2 and 3, in which case the end of said lever q is formed similarly to
the ends ef of the leverse and f for coming into contact with the said wiper a.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1. In gill-boxes, drawing-boxes, roving and finisher frames, detector levers,
rotary wipers and means for causing same to operate in combination substantially
as specified.
"
"
2. In means for preventing wraps on the drawing rollers of gill-boxes, and
drawing boxes, supplementary rollers mounted to operate in contiguity with the
upper drawing rollers and means for enabling same to operate in combination sub-
stantially as herein specified.
3. Mechanism for arresting the motion of machinery the same being constructed
and arranged to operate substantially as herein specified.
Dated this 20th day of March 1900
ALBERT MITCHELL,
Per Samuel Hey,
Agent.