Improvements appertaining to Mechanism Employed in the Doubling and Twisting of Wool or other Fibrous Substances.
Year: 1889

page_text: Date of Application, 23rd Oct., 1889
Complete Specification Left, 18th July, 1890-Accepted, 23rd Aug., 1890
PROVISIONAL SPECIFICATION.
Improvements appertaining to Mechanism Employed in the Doubling
and Twisting of Wool or other Fibrous Substances.
1, WILLIAM STELL of the firm of Messrs. Hall and Stell of Keighley in the County
of York, Machine Makers, do hereby declare the nature of this invention to be as
follows, that is to say :-
It consists of the application of improved means for effecting the stoppage, or for
arresting the rotary motion, of the vertical draw-drum or roller employed in machines
for doubling or twisting wool or other fibrous snbstances, in the manner hereinafter
described and for the purposes well known to those conversant with this class of
machinery.
This object is effected in accordance with this invention by mounting a coupling-
piece loosely, so that it will slide upon as well as rotate about the vertical spindle or
stud (or upon and about the boss of a bevil wheel mounted upon said vertical spindle)
upon and about which spindle the vertical draw-drum rotates. This coupling-piece
has projections extending longitudinally in each direction from its peripheral body
part, those of said projections that extend upwardly being made to enter suitable
notches or grooves formed in the lower end of the draw-drum's extending boss and
are of sufficient length as to enable them to remain in connection with their respective
grooves notwithstanding their vertical motion hereinafter described, while those of said
projections that extend downwardly overlap a suitably formed annular piece (herein-
after described) and are made long enough so that when in their lowest position they
will come into connection with in order to be operated by projecting pieces formed
upon a bevil-wheel which has continuous rotary motion imparted to it by its gearing
wheel driven in the common and well known manner.
Between the above described coupling-piece and bevil-wheel is mounted (loosely so
as to rotate) a suitably formed annular piece (herein before referred to) having a cam
surface formed upon its upper edge to operate in connection with a similar cam-
surface formed upon the lower edge of the above described coupling piece, and
attached to or forined on said annular-piece are projecting arms which are arranged to
come in contact with the pin fixed to the common trap-lever or baulk at present in
use, when said pin assumes its well known position on the breakage or failing of the
yarn, thread or fibrous substance as is well understood.
When the winding or doubling of the yarn etc., is being effected in a proper and
efficient manner the rotary motion of the beril-wheel is imparted to the draw-drum by
means of the coupling piece joining the two together, however when said yarn etc.,
breaks or fails, one or the other of the projecting arms on the annular-piece, comes in
contact with the pin on the baulk and so the rotary motion of said annular piece is
arrested. Now by the continuity of the motion of the bevil-wheel the coupling piece
is carried or rotated after the stoppage of the annular piece unti! by the action of the
can surfaces on said coupling and annular-piece respectively, said coupling is raised
so that its projections are clear of the projections on the bevil wheel and so its rotary
motion as also that of the draw-drum is discontinued until the breakage of the yarn

page_text: etc., is again repaired when by the pin in the baulk being lifted clear of the arms on
the annular piece the whole of the parts assume their proper respective positions and
their rotating operations re-commence.
Date : 01
1000
WILLIAM STELL.
Per Samuel Hey,
Agent.
COMPLETE SPECIFICATION.
Improvements appertaining to Mechanism Employed in the Doubling
and Twisting of Wool or other Fibrous Substances.
I, WILLIAM STELL of the firm of Hall and Stell of Keighley 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, that is to say :-
It consists of the application of improved means for effecting the stoppage, or for
arresting the rotary motion, of the vertical draw-drum or roller employed in machines
for doubling or twisting wool or other fibrous substances, in the manner hereinafter
described and for the purposes well known to those conversant with this class of
machinery.
Hereunto appended are sheets of drawings illustrative of this invention and forming
part of this specification, and to these drawings reference made by figures and
fetters in the following description.
Fig. 1 is a sectional side elevation of a sufficient portion of a doubling or twisting
machine to shew the application of this invention.
Fig. 2 is front view of parts shewn by fig. 1.
Fig. 3 is a drawing enlarged scale shewing the draw-drum and its coupling
parts.
Figs. 4 and 4A, and 5A and 6 and 6A are respectively side and top views in detail
of parts constructed and arranged in accordance with this invention and as hereinafter
described.
Like letters and figures of reference indicate like parts in all the drawings.
The object of this invention is effected by mounting a coupling piece d loosely so
that it will slide upon as well as rotate about the vertical spindle or stud b or upon
and about the boss c¹ of a bevel-wheel c mounted to rotate upon and about said stud b,
but preferably the latter. The vertical draw-drum d is also mounted upon so as to
rotate about this said stud b.
This coupling-piece a has projections extending longitudinally in each direction
from its peripheral body-part, those a' a² of said projections that extend upwardly
being made to enter suitable notches or grooves formed in the lower end of the
extending boss of the drum d, and are sufficient length as to enable them to remain in
connection with their respective grooves notwithstanding their vertical motion herein-
after described, while those a³ a of said projection that extend downwardly overlap a
suitably formed annular piece e and are made long enough so that when in their lowest
position they will extend beyond the piece e and come into connection with, in order
to be operated by projecting pieces c² formed upon the bevel-wheel c. Continuous
rotary motion being imparted to this wheel c by its gearing wheel driven or rotated
in the common and well known manner.
Upon the upper surface of the annular-piece e, which is mounted (loosely so
as to rotate about the boss c¹) between the wheel and the piece a, are formed
cam surfaces e¹ and e² to operate in connection with the cam surfaces a
and a formed upon the lower edge of the above described piece a, and also attached
to or formed on said annular piece e are the projecting arms e and e which
are arranged to come in contact with the pin or bent end (the latter form being shewn
in the drawings) attached to or formed on the common trap-lever or baulk g at

page_text: present in use, when, said end g¹ assumes its well known position (shewn by fig. 3) on
the breakage or failing of the yarn, thread or fibrous substance as is well known.
When the winding or doubling of the yarn, etc., is being effected in a proper and
efficient manner the rotary motion of the wheel c is imparted to the drum d by means
of the coupling-piece a with its arms a¹ a² and as a joining these together, however
when said yarn etc., breaks or fails one or the other of the arms e³ or on the piece e,
comes in contact with the end g' on the lever g as shewn by fig. 3 (said breakage
allowing said lever g by gravity to assume this position) and so the rotary motion of
said piece e is arrested. Now by the continuity of the motion of the wheel c the
piece a is carried or rotated after the stoppage of the piece e until by the action of the
cam surfaces on said pieces a and e said coupling a is raised so that its projections a
and a are clear of the projection 2 on the wheel c and so its rotary motion as also
that of the drum d is discontinued until the breakage or failing of the yarn etc., is
again repaired, when by the end gl of the lever g being lifted clear of the arms e³
and et as shewn by fig. 1, the whole of the parts assume their proper respective positions
and their rotary operations re-commence.
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. The combination of a bevel wheel c having the projections c² attached thereto or
formed thereon, the annular-piece e having cam surfaces e¹ and e³ and radial arms ea
and e the coupling piece a having its cam surfaces and projecting arms as described
the drum d formed as set forth, and the lever g each and all of these several parts being
mounted and arranged to operate substantially as herein specified.
Water th19 17th day of fuiv 1891)
Water this 17th day of
Live 184)
W. STELL.
Per Samuel Hey,
Agent.
W. STELL.
Per Samuel Hey,
Agent.