Improvements in or relating to Frames for Spinning Jute, Flax, Hemp, Cotton, Worsted, or other Fibrous Substances.
Year: 1893

page_text: Date of Application, 22nd Sept., 1893
Complete Specification Left, 26th Jan., 1894-Accepted, 3rd Mar.,
1894
"
PROVISIONAL SPECIFICATION.
Improvements in or relating to Frames for Spinning Jute, Flax,
Hemp, Cotton, Worsted, or other Fibrous Substances.
We, ALEXANDER CUNNINGHAM ROBERTSON, of 2 Henderson's East Wynd,
Machine Fitter, and JAMES LYON SCOTT LYON, of 31 Reform Street, Joiner,
both of Dundee, in the County of Forfar, Scotland, do hereby declare the nature
of this invention to be as follows:-
Our invention relates to improvements in frames for spinning jute, flax, hemp,
cotton, worsted, or other fibrous substances and has for its object to lessen the
waste of rove consequent upon the coming down of an end, and to improve the
working of the machine.
In carrying out our invention, we attach to the frame in the most suitable
position a mechanism so constructed as to release the slip or back roller and
simultaneously to seize and stop the forward motion of the rove in the event of an
end coming down. Such mechanism is received and supported by a bracket, which
is attached to the spinning frame in a simple manner. The parts of the rove
seizing motion consist of a slide, which works in a recess in the aforesaid bracket,
it being designed to move against the resistance of a spring. It also is provided
with a protuberance which presses against the rove when required, and an inclined
plane or cam against which a pin or roller on a lever works; thus causing it to be
moved backwards, or forwards as required. The aforesaid lever has its fulcrum at
the rear of the bracket, and the pin or roller between it and the point of application
of the power. The rove passes through a hole in the bracket, such hole being
covered by the protuberance on the slide when the rove is stopped. The mechanism
for releasing the slip or back roller, consists of a swing bracket provided with
bearings for carrying a loose roller, such swing bracket being suitably pivoted to
the main bracket. A bent lever of special design is also pivoted to this main
bracket, at a point adjacent to the other pivot, a weight being at the one extremity
and the power, which in this case is represented by an adjustable screw at the
other; the screw being intended to press against a groove at the back of the swing
bracket. This lever is coupled to the slide previously described, by a link and
coupling rod in such a manner that when the weight is on the bent lever, it tends
to draw the slide against the spring.
Dated this 20th day of September 1893.
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicants.
COMPLETE SPECIFICATION.
5 Improvements in or relating to Frames for Spinning Jute, Flax,
Hemp, Cotton. Worsted, or other Fibrous Substances.
:
We, ALEXANDER CUNNINGHAM ROBERTSON, of 2 Henderson's East Wynd,
Machine Fitter, and JAMES LYON SCOTT LYON, of 31 Reform Street, Joiner,
both of Dundee, in the County of Forfar, Scotland, 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 :—-
Our invention relates to improvements in frames for spinning jute, flax, hemp,
cotton, worsted, or other fibrous substances, and has for its object to lessen the

page_text: waste of rove consequent upon the coming down of an end, and to improve the
working of the machine.
And in order that our said invention may be properly understood, we now
proceed more particularly to set forth the system, mode, or manner in or under
which the same is or may be used, or practically carried into effect, reference being
made to the accompanying drawings, and to the letters and figures marked thereon,
that is to say :-
Figures 1. 2. and 3. (Sheet 1.) represent a side view; a view looking on C.
(Figure 1.) and a plan respectively of our invention, showing the rove passing
freely from the bobbin.
Figures 4. 5. and 6. (Sheet 2.) represent respectively a section at B. B.
(Figure 3.); a view looking on D. (Figure 4.) and a section at A. A. (Figure 4.)
of our invention, showing an end down and the motion of the rove stopped.
Figure 7. (Sheet 3.) represents a part view of a spinning frame with our invention
in position.
In these drawings the same reference numerals are used to mark the same or
like parts wherever they are repeated.
In carrying out our invention, we attach to the frame 10. in the most suitable
position, such position being largely determined by the type of spinning frame, a
mechanism so constructed as to release the slip or back roller 11, and simultaneously
to seize and stop the forward motion of the rove 12. in the event of an end coming
down. Such mechanism is received and supported by a bracket 13. which is
attached to the spinning frame 10. by a screwed bolt 14. The parts of the rove
seizing motion consist of a slide 15, which works in a recess in the aforesaid
bracket; it being designed to move against the resistance of a spring 16. It also
is provided with a protuberance 17, which presses against the rove when required,
and an inclined plane or cam 18. against which a pin or roller 19. on a lever 20.
works; thus causing it to be moved backwards or forwards as required. The
aforesaid lever 20. has its fulcrum 21. at the rear of the bracket and the pin or
roller 19. between it and the point of application of the power. The rove passes
through a hole 22. in the bracket, such hole being covered by the protuberance on
the slide 15, when the rove is stopped. The mechanism for releasing the slip or
back roller 11. consists of a swing bracket 23, provided with bearings 24. for
carrying such loose roller; the swing bracket being suitably pivoted at 25. to the
main bracket. A beut, lever 26. of special design is also pivoted at 27. to this
main bracket at a poiut adjacent to the other pivot 25; a weight 28. being at the
one extremity and the power, which in this case is represented by an adjustable
screw 29, at the other; the screw being intended to press against a groove 30. at
the back of the swing bracket. This lever is coupled to the slide 15, previously
described, by a link 31. and coupling rod 32. in such a manner that when the
weight 28. is on the bent lever, it tends to draw the slide 15. against the spring 16.
The coupling rod 32. is slightly bent to form an inclined plane as shewn, and thus
assist in the raising of the lever 26.
The mechanism operates in the following manner :-When the spinning frame is
in full operation each mechanism is set as shewn in Figures 1. 2. 3. and 7, that is to
say the lever 20. is depressed, causing the slide 15. to be pushed back, in this
manner permitting the rove to freely pass through the hole 22, and simultaneously
permitting the weight 28. to act through the lever 26. upon the roller 11, causing
it to press against the retaining roller 33, thus drawing forward the rove in
the usual way. Should an end come down, that is to say should the
yarn break,
the attendant, by lifting the lever 20. permits the spring 16. to press forward the
slide 15, the portion 17. gripping the rove as shewn in Figures 4. and 6, and at the
same time, by means of the coupling rod 32, link 31, and lever 26, the pressure is
taken off the roller bracket 23, allowing the roller 11. to swing away from the
retaining roller 33, in this manner stopping the forward motion of the rove.
the ends are to be joined, the lever 20. is depressed until the slide 15. is in the
position shewn in Figures 1. and 3, the work then proceeding as before.
When

page_text: Having now particularly described and ascertained the nature of our said
invention and the system, mode, or manner in or under which the same is or may
be used or practically carried into effect, what we consider to be novel and original,
and therefore claim as the invention secured to us by the hereinbefore in part
recited Letters Patent is :-
(1.) The general arrangement and combination of parts constituting the
improvements in or relating to frames for spinning jute, flax, hemp, cotton, worsted,
or other fibrous substances, used in moving forward the rove, and causing the same
to be stopped when desired, substantially as hereinbefore described and shewn upon
the annexed sheets of drawings.
(2.) The arrangement of the lever 20, cam 18, piu or roller 19, and spring 16,
for causing the slide 15. to be moved backwards or forwards, substantially as
hereinbefore described and shewn upon the annexed drawings.
(3.) The arrangement of the coupling rod 32, link 31, weight 28, lever 26,
adjustable screw 29, and swing bracket 23, for alternately pressing the roller 11.
against the retaining roller 33, or causing it to swing clear, substantially as herein-
before described and shewn upon the annexed drawings.
(4.) The use of the single roller 11, as herein before described and shewn upon
the annexed drawings.
Dated this 30th day of December 1893.
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicants.