Improvements in Apparatus for Regulating the Drag upon Bobbins in Textile Machinery.
Year: 1890

page_text: Date of Application, 16th Jan., 1890
Complete Specification Left, 16th Oct., 1890-Accepted, 22nd Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Regulating the Drag upon Bobbins
in Textile Machinery.
I HENRY TETLOW of The Miles Platting Reed Heald and Wire Works, Varley
Street, Miles Platting, Manchester, in the County of Lancaster, Manufacturer of
Healds and Reeds, do hereby declare the nature of this invention to be as follows:-
My invention relates principally to doubling or so termed cabling machinery but
is also applicable to other machinery used in the preparation or spinning of yarns.
In such machines it is necessary to increase the drag upon the bobbins as they
fill with yarn as is well understood. Previously to my invention a sliding bar has
been employed to act simultaneously upon the drag bands of the bobbins upon the
frame side and has been shifted end wise at intervals as the filling proceeded in
order to increase the drag upon the bobbins. The efficiency of this arrangement
depended upon the close attention of the attendant so that the bar might at times
be shifted too often and at other times be neglected. To remedy this defect I
impart a slow continuous or a regular intermittent movement to the bar such
movement being calculated to increase the drag in correct proportion to the increase
in the diameter of the yarn upon the bobbins. I connect the screw which actuates the
said bar with the roller shaft or with a suitable revolving part of the frame and I
employ worm and wheel gearing to reduce the speed to the required extent. The
actuating shaft is connected with the said screw by means of worm and worm wheel
gearing and of bevel gearing and connecting shafts. In place of the screw a worm
engaging with teeth or grooves in the bar or in a part connected therewith might be
employed or the bar might be shifted by means of a rack and pinion or of a
slowly revolving cam or excentric.
Dated this 15th day of January 1800
DUTTON & FULTON,
1, St. James Square, Manchester, Agents.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Regulating the Drag upon Bobbins
in Textile Machinery.
I HENRY TETLOW of The Miles Platting Reed Heald and Wire Works Varley
Street Miles Platting Manchester in the County of Lancaster Manufacturer of
Healds and Reeds 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 :-
:-
My invention relates principally to doubling or so termed cabling machinery but
it is also applicable to other machinery used in the preparation or spinning of
yarns. In such machines it is necessary to decrease the drag upon the bobbins as
they fill with yarn as is well understood. Previously to my invention a sliding bar
has been employed to act simultaneously upon the drag bands of the bobbins upon the
frame side and has been shifted endwise at intervals as the filling proceeded in
order to decrease the drag upon the bobbins. The efficiency of this arrangement
depended upon the close attention of the attendant so that the bar might at times
be shifted too often and at other times be neglected. To remedy this defect I impart
a slow continuous or a regular intermittent movement to the bar such movement
being calculated to increase the drag in correct proportion to the increase in the
diameter of the yarn upon the bobbins.
In order that the nature of my invention and the manner in which I carry the same
Pine Rd1

page_text: into practical effect may be clearly understood I will now describe the same more fully
with reference to the accompanying drawings.
Of these drawings
Fig. 1 represents a front elevation of so much of a doubling frame as is necessary to
the sufficient illustration of my invention.
Fig. 2 is a plan view and
Fig. 3 an end elevation of parts which appear in Fig. 1.
In the said figs. a is the bobbin rail the roller beam and c c parts of the end
framing of a doubling frame and d d are two spindles and flyers mounted on the said
frame these parts being of an ordinary or suitable construction. Upon the front of
the said bobbin rail is mounted the drag bar e which is provided with guides e¹ through
which pass the loaded drag bands as is usual. The bar e is mounted to slide
horizontally to and fro a movement in the direction indicated by the arrow decreasing
the drag upon the bobbins whereas a movement in the contrary direction increases
the drag. The said bar is actuated by means of the screw shaft g which is mounted to
revolve in bearings and is connected with the bar e in such a manner as to permit of such
revolution. Upon the screwed part of the shaft g is mounted a bevel wheel h which
is prepared to act as a nut upon the screw and is prevented from moving in the
direction of the axis of the screw shaft. With the said bevel wheel gears a second
bevel wheel which can be rotated by means of a handle i. When this handle is
turned the screw shaft is slid endwise and effects the sliding of the bar e. As so far
described the apparatus does not differ materially from arrangements which have been
in use prior to the date of my invention. I extend the screw shaft and provide it
with a long spur wheel which gears with a wheel j which is fixed upon a shaft j¹ which
is mounted to revolve in bearings and is connected by bevel gearing with a second
shaft 1. The shaft is provided with a bevel wheel m which gears with a bevel
pinion m¹ which is mounted to slide upon and to revolve with a vertical shaft n which
is mounted to revolve in bearings in the brackets n'. Upon the upper end of the
shaft n is fixed a bevel wheel o with which gears a bevel pinion o' which is fixed to a
worm wheelp with which gears a worm p¹ which is fixed upon the ordinary roller
shaft of the frame. It will be seen that the screw shaft will receive a revolving motion
during the time that the bobbins are being filled. By the use of worm gearing and as
a consequence of the proportions of the bevel wheels the speed of revolution is reduced
to the required extent so that the drag bar is caused to make the necessary short
sliding movement during the filling of the bobbins. When the screw shaft is turned
by the action of the wheel j upon the wheel g¹ the bevel wheel h acts as a fixed nut
and the screw shaft moves endwise and causes the drag bar to slide. This sliding
movement of the drag bar being regular and continuous during the filling of the
bobbins the tension of the yarn is kept more uniform so that better work is produced
and there is less loss arising from waste. The long wheel g¹ permits of endwise
motion of the screw shaft but if preferred one of the wheels g¹ or j might be mounted
to slide upon its shaft in which case the wheel g¹ might be of about the same width as
the wheel j. I do not confine myself to the combination of shafts and gearing for
transmitting rotating motion to the screw shaft so long as the said shaft is connected
by suitable gearing with the roller shaft or with a suitable part of the frame so that
the said screw shaft is caused to revolve at a suitable speed in the required direction
so as to gradually reduce the drag upon the bobbins as they become filled. When the
filled bobbins have been removed and replaced with empty bobbins it is necessary to
put on the heavier amount of drag. This can be quickly effected by turning the
handle so as to revolve the nut wheel h. As the screw shaft would be prevented
from revolving it would be caused to slide end wise in its bearings. In place of
the screw shaft a worm engaging with teeth or grooves in the bar or in a part
connected there with might be employed or the bar might be shifted by means of a
rack and pinion or of a slowly revolving cam or excentric. As herein before
mentioned I do not restrict the application of my invention to doubling frames as
it may be applied to other textile machinery wherein drag bands are employed in
a similar manner to put a drag upon bobbins which are being filled.

page_text: 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 parts substantially as and for the purpose set forth and
indicated.
2. In connection with the drag bar of a doubling frame the screw shaft connected
by gearing with the roller shaft so as to revolve at a suitably slow speed during the
filling of the bobbins and thereby to slide the said drag bar.
3. The drag bar e acted upon by a screw or worm or a rack and pinion or cam
operated by reducing gearing from a revolving part of the frame to which the said bar
is applied so as to slide slowly and regularly during the filling of the bobbins in such
frame substantially as and for the purpose set forth and indicated.
Dated this 15th day of October 1800.
DUTTON & FULTON,
1, St. James Square, Manchester, Agents.