Improvements in Apparatus for Automatically Stopping Machines for Combing and Preparing Fibrous Substances.
Year: 1893

page_text: Date of Application, 14th Jan., 1893
Complete Specification Left, 31st May, 1893-Accepted, 1st July, 1893
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Automatically Stopping Machines
for Combing and Preparing Fibrous Substances.
We, JOHN WILLIAM KNOWLES, and HERBERT BARKER, of the firm of
J. W. Knowles & Co. of Globe Foundry, Manningham, Bradford, in the County
of York, Machine Makers, do hereby declare the nature of this invention to be as
follows:-
This invention relates to certain improvements in machines employed in the
manipulation of fibrous substances, and to arrange the same in such a manner that
it is applicable to combing and other machines used in the preparation of fibrous
materials for the spinning frame, and has for its object, the automatic stoppage of
the machine whenever the sliver or cord of fibre is broken or materially reduced in
thickness.
We accomplish our object in the following manner: The slivers or cords of
fibre are caused to pass under and support two levers mounted on suitable brackets
secured in any convenient manner. On a sliver or cord of fibre being broken or
materially reduced in thickness, it allows the weighted arm or lever hitherto
supported by the sliver or cord to-drop and thereby come in contact with an arm
of a lever mounted on a pin secured to an eccentric or cam driven in any suitable
manner and by these means the said lever is caused to operate a sliding bar in such
a manner as to release its hold of an upright bar, which is then operated by means
of a spiral spring or the like, and by the upright bar being attached to the belt
shipping rod, the driving belt is automatically moved from the fast to the loose
pulley thus stopping the machine.
Dated this 13th day of January 1893
JOHN WAUgh,
Agent.
COMPLETE
SPECIFICATION.
Improvements in Apparatus for Automatically Stopping Machines
for Combing and Preparing Fibrous Substances.
We, JOHN WILLIAM KNOWLES and HERBERT BARKER, of the firm of
J. W. Knowles & Co., of Globe Foundry, Manningham Bradford in the County of
York, 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 :-
This invention relates to certain improvements in machines employed in the
manipulation of fibrous substances, and to arrange the apparatus in such a manner
that, it is applicable to combing and other machines used in the preparation of
fibrous substances for spinning and the like, and has for its object, the automatic
stoppage of the machine whenever the sliver or cord of fibre is broken or materially
reduced in thickness.
In order that our invention may be fully understood, we will describe the same in
detail by making reference to the accompanying sheet of drawings, in which
Fig. 1 represents a plan view of our apparatus as applied to a combing machine.
Fig. 2 is a detached side view of the apparatus, and
Fig. 3 an enlarged detail partly in section.
The bracket A for supporting the various parts of our improved apparatus is by
preference secured centrally between the two small comb circles B. B. To the
said bracket A are secured two smaller brackets C. C. having arms D. D. mounted

page_text: thereon, and on the vertical shaft F driven in any convenient manner is secured an
eccentric G. or its equivalent, provided with a stud G' to which is attached the
lever H. having two arms H¹ H¹ forming part thereof.
Immediately above and resting on the bracket A. is a sliding bar J. having a
slot hole K therein, through which passes the upright bar L. and through a hole in
the said plate passes a vertical shaft F by which it is supported. The upright
bar L is provided with a compressed spiral spring M. weight or the like, for the
purpose as hereinafter described, and is connected to the ordinary knock-off rod by
a chain, link or lever or a combination of the same as may be required by the
machine.
The slivers E. E are drawn from the small comb circles B. B. in the ordinary
manner, and are conducted under the respective arms D. D. by which they are
supported in a somewhat horizontal position clear of the arms H'H' of the lever H
as shown by Fig. 2.
Upon either of the slivers E. E being broken or materially reduced in thickness,
the arm D hitherto supported thereby will be released, when by its own gravity
will drop into such a position that the end of one of the reciprocating arms H¹ of
the lever H. will come in contact therewith and cause the eccentric G. and top of
shaft F. revolving in sliding plate J. to move in the direction of arrow and thereby
move the sliding plate J. in the same direction, such a distance, as to disengage the
sliding plate J from the shoulder L' formed on the upright bar L. thus removing
the support of the said bar and allowing the compressed spiral spring or its
equivalent to move the said upright bar in the direction of arrow 2 and thereby
operate through the necessary connections, the knock off rod of the machine, and
move the driving belt from the fast to the loose pulley, thus automatically stopping
the machine.
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. The combination of the parts forming the complete apparatus arranged sub-
stantially in the manner and for the purpose herein before described and as illustrated
by the accompanying drawings.
2. In machines for preparing fibrous substances the combination of the rotating
eccentric G with the lever H. sliding bar J. and upright bar L. arranged substan-
tially in the manner and for the purpose as hereinbefore described.
Dated this 30th day of May 1893.
JOHN WAUGH,
Agent.