Improvements in and connected with Spinning and Doubling Machinery.
Year: 1891

page_text: The decision of the Comptroller-General, of the 1st day of November 1893, allowed.
under Section 18 of the Patents, &c. Act, 1883, an Amendment of this
Specification.
Date of Application, 7th Dec., 1891
Complete Specification Left, 2nd Aug., 1892-Accepted, 10th Sept., 1892
PROVISIONAL SPECIFICATION.
Improvements in and connected with Spinning and Doubling
Machinery.
I, JAMES ROBERTSON, of the firm of Watson, Robertson & Co., Logie Works,
Dundee, in the County of Forfar, N.B. Jute Spinner, do hereby declare the nature
of this invention to be as follows:-
This invention relates to improvements in the construction of machines for spinning
jute, flax, cotton, and the like; and is also applicable for twisting and doubling
machines. My improvements are specially connected with the spindles, the object
being to drive these at much higher speeds and that more easily than heretofore,
and the bobbins to be applied and removed in sets or in whole frames; thus saving
much time and expense in labour and in the wear and tear of the spinning
machines.
The nature and novelty of my invention and improvements are to enable the
spinning frame spindles to be driven at a much higher speed, to provide an easy
method of stopping the individual spindles when the yarn breaks, that is to say
when an end comes down, and the removing of full bobbins of yarn and replacing
them by empty bobbins by means of mechanism.
The type of spindles and their flyers which require to be used in connection with
my invention are a modified form of those illustrated and described in Mair and
Robertson's Specification No. 13,638 of 25th October A.D. 1886, and my improve-
ments in connection therewith consist in the addition of a bearing or journal imme-
diately above the driving pulley of each spindle, and the use of a wedge or skid
for stopping the rotation of said spindle and flyer should an end come down, and
the cutting short of the said spindles to allow the spindles or studs in the platform
to work as described further on. The bobbin platform is traversed up and down
as in ordinary spinning frames. The platform as improved by me, consists
preferably of a square tube provided with trunions at either extremity, said
trunions being supported in journals which are elevated and depressed in the usual
manner when the machine is working to fill the bobbins. The platform or tube is
provided with say
four series of short spindles or studs each series being at right
angles to the axis of the said platform or tube, the axis of each short spindle when
vertical coinciding with the axis of its corresponding spindle and flyer. These short
spindles are for carrying the bobbins, and are so constructed as to allow of
the said bobbins when the yarn is being spun, rotating with the least possible
resistance.
While one series of bobbins is in position taking up the yarn, another series of
full bobbins is ready for being dropped off, another has been cleared of bobbins,
while the other is being filled with empty bobbins by the attendant, in readiness for
the tube being partially rotated; an operation which brings them into position for
being filled with yarn from the top spindle and flyer.
Dated this 2nd dex of December 1901

page_text: COMPLETE SPECIFICATION (AMENDED).
Improvements in and connected with Spinning and Doubling
Machinery.
I, JAMES ROBERTSON, of the firm of Watson, Robertson and Co., Logie Works,
Dundee, in the County of Forfar, N.B. Jute Spinner, 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 improvements in the construction of machines for spinning
jute, flax, cotton, and the like, and it is also applicable for twisting and doubling
machines. My improvements are specially connected with the spindles flyers, the
object being to drive these at much higher speeds and that more easily than
heretofore, and the bobbins to be applied and removed in sets or in whole frames ;
thus saving much time and expense in labour and in the wear and tear of the
spinning machines.
The nature and novelty of my invention and improvements are to enable the
spinning frame spindles flyers to be driven at a much higher speed, to provide an easy
method of stopping the individual spindles Ayers when the yarn breaks, that is to say
when an end comes down, and the removing of full bobbins of yarn and replacing
them by empty bobbins partly by means of mechanism.
In order that my invention may be properly understood and readily carried into
effect, I have hereunto appended five explanatory sheets of drawings in the several
figures of which corresponding parts are marked with the same letters and figures
of reference.
Figure 1. is a front elevation of part of a spinning frame showing my invention
applied thereto.
Figure 2. is a side elevation of a part of such frame looking on it in the direction
of the arrow B. (Figure 1.)
Figure 3. is a side elevation of a part of such frame looking on it in the direction
of the arrow A. (Figure 1.)
Figure 4. is a front elevation shewing my said improvements drawn to a larger
scale, than in Figure 1.
Figure 5. is the corresponding side elevation of Figure 4, looking in the direction
of the arrow E, and
Figure 6. is a sectional plan at C. D. (Figure .4.) shewing the method adopted
for stopping each spindle.
Figure 7. is a sectional elevation of one of the intermediate supports of the
platform, and Figure 8. its corresponding front elevation.
Figure 9. is a sectional elevation of a modified spindle and flyer, and Figure 10.
its corresponding side elevation.
The type of spindles and their flyers which require to be used in connection
with my invention, are a modified form of those illustrated and described in Mair
and Robertson's Specification No. 13638 of 25th October A.D. 1886, and my
improvements in connection therewith, consist in the addition of a bearing or
journal 7. immediately above the driving pulley 8. of each flyer, and the use of
a wedge or skid 10. for stopping the rotation of said flyer should an end come
down, and the cutting short of the said spindles tubular spindles of the flyers to
allow the spindles or studs 11. in the platform 12. to work as hereinafter
described. The said bobbin platform 12. is traversed up and down as in ordinary
spinning frames, by means of the cam 13, which actuates the roller 14,
lever 15, tension rod 16, chain 17, and pulleys 18. and 19, in this manner
causing the chains 20, to raise and lower the said platform. The platform 12.
as improved by me, consists preferably of a square tube 21. provided with
trunions 22. at either extremity, and suitable intermediate supports Figures 7.
and 8, said trunions being carried in journals 23. which are elevated and depressed

page_text: in the usual manner-as previously described-when the machine is working to
fill the bobbins. The platform or tube 21. is provided with say four series of short
spindles or studs 11, each series being at right angles to the axis of the said platform
or tube 21, the axis of each short spindle 11. when vertical coinciding with the
axis of its corresponding flyer 9. These short spindles are for carrying the
bobbins 29, and are so constructed as to allow of the said bobbins, when the yarn
is being spun, rotating with the least possible resistance.
While one series of bobbins is in position taking up the yarn, another series of
full bobbins is ready for being dropped off, another has been cleared of bobbins,
while the other is being filled with empty bobbins by the attendant, in readiness for
the tube being partially rotated in the direction of the arrows G, an operation which
brings them into position for being filled with yarn from the flyers. 25. is a catch for
keeping the tube 21. from rotating when the machine is in motion, and 26. are
recesses for receiving the said catch.
The machine is operated in the following manner :-
The yarn 27. is led down through the centre of the socket or tubular spindle 9.
of the flyer until it passes the journals, from thence through a hole in the side, and
on to the flyer 28, afterwards passing to the bobbin 29. after having been twisted
or spun. The bobbin is caused to rotate on its spindle 11. by the yarn from the
flyer pulling it round, the rate of its rotation being governed by the temper cord 30.
and weight 31, acting upon the bobbin in the usual manner, 32. being the temper
plate. As previously described the tube 21. carrying the bobbins is traversed by
means of the cam 13. and its appurtenances, and thus the yarn is laid on the bobbin
in the manner desired.
The operation of doffing the full bobbins is effected as follows:-
The machine is stopped with the platform 12. say in its lowest position and the
catch 25. is withdrawn from its recess, thus allowing the tube to be turned through
a quarter of a revolution, in this manner bringing a series of empty bobbins into
position for being filled. The machine is then started for a short time that the
yarn which is still attached to the full bobbins may get caught on the empty ones,
after which the ends are cut, the full bobbins being ready to drop off at the next
partial rotation of the tube. It will thus be seen that when the empty bobbins are
in position for being filled, the full bobbins are on their spindles with their axis
horizontal, ready for dropping off at the next quarter turn, another series of spindles
have been cleared of full bobbins, and the remaining series are in process of having
empty bobbins placed on them, by the attendant.
Should an end break the wedge 10. is pushed in until it bears against the flanges
of the pulley 8. in this manner stopping the rotation of the flyer and permitting
the necessary piecing operations being carried out. When the wedge is withdrawn
the spring 33. keeps it from acting.
Instead of driving the flyers from a cylinder, I provide a separate pulley 34.
for each.
Preferably I employ flyers of the type illustrated by Figures 9. and 10. in which
the flyer is screwed upon its socket or tubular spindle, care being taken to use a
screw thread which will require the flyer to be rotated in the opposite direction to
that in which the socket or spindle goes when screwing it on, thus guarding against the
possibility of its coming off when working. By constructing the socket and flyer
in this manner, a new flyer can be fitted to an existing socket or "vice versa."
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 general arrangement and combination of parts constituting the improve-
ments in frames for spinning, twisting, or doubling or roving jute, flax, cotton and
the like, substantially as hereinbefore described and illustrated upon the annexed
sheets of drawings.
(2) The arrangements whereby the ordinary manual operations of "shifting" or

page_text: "
doffing" the bobbins are dispensed with, substantially as hereinbefore described
and illustrated upon the annexed sheets of drawings.
(3) The arrangement of double-bearings, combined with the wedges for arresting
the rotation of the flyers, substantially as hereinbefore, described and illustrated
upon the annexed drawings.
(4) The use of the wedges for arresting the rotation of the flyers, substantially
as hereinbefore described and illustrated upon the annexed drawings.
(5) 3. The combination consisting of the tube 21, which may be made to rotate
when desired, with and which also serves as the traversing platform as hereinbefore
described and illustrated upon the annexed drawings.
(6) The use of the separate driving pulleys 34, one for each spindle as described.
(7)-The-design and construction of the socket and flyer, as described and illus
trated upon the annexed drawings Figures 9. and–10.
Dated this 20th day of July 1892.
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicant.