Improvements in Means for Facilitating the Unwinding of Bobbins and the like in Winding and like Frames.
Year: 1899

page_text: Date of Application, 31st May, 1899
Complete Specification Left, 24th Feb., 1900 -Accepted, 7th Apr., 1900
PROVISIONAL SPECIFICATION.
Improvements in Means for Facilitating the Unwinding of Bobbins
and the like in Winding and like Frames.
We, CHARLES HAILO and CHARLES EDWARD LIEBREICH, of Mill Street, and
ALFARD DOWNBROUGH, of Anuison Street, all in the City of Bradford, Machinists,
do hereby declare the nature of this invention to be as follows:-
This invention has for its object the unwinding of yarn from stationary
flanged or other bobbins, by combining with each bobbin an appliance so
arranged that the tension on the yarn as it is removed from the bobbin by
the rotation of the spool cop or the like is reduced, therefore to reduce the
liability to breakage of the yarn; also to unwind the yarn from the flanged or
other bobbin with more uniformity of tension than is the case when the bobbin
is rotated by the drag of the yarn.
The bobbins containing the yarn to be wound therefrom into cops, or upon
spools or other bobbins, are placed in any suitable position on the frame, and
the spindles for receiving the cops, spools or other bobbins on which the yarn is
to be wound, are mounted and operated in the ordinary manner, but instead of
drawing the yarn direct from the flanged or other bobbin in a manner that the
said bobbin rotates, we introduce to each flanged or other stationary bobbin a
thread guide or carrier in a manner that the thread guide or carrier is caused
to rotate around the same, and thus unwind the yarn therefrom without causing
the bobbin to rotate, thereby reducing the tension on the yarn, consequently less
liability of breakage.
By forming the thread guide of light material and mounting the same so
that it will rotate with little friction, the thread guide is not so liable to over-
run and thus vary the tension on the yarn, as is the case when the yarn is
removed direct from, and the bobbin caused to rotate in the manner as hitherto.
1000
JOHN WAUGH,
Agent, Sunbridge Chambers, Bradford.
Improvements in Means for Facilitating the Unwinding of Bobbins
and the like in Winding and like Frames.
We. CHARLES HAHLO and CHARLES EDWARD LIEBREICH, of Mill Street, and
ALFARD DOWNBROUGH, of Aunison Street, all in the City of Bradford, Machinists,

page_text: 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 has for its object the unwinding of yarn from non-rotating
flanged or other bobbins, in such a manner that, the yarn as it is unwound from
a stationary and non-rotating bobbin by the rotation and formation of a spool,
cop or the like, on a winding or like frame; the tension or drag on the yarn
is reduced and the over running of the delivery of yarn obviated, thereby
proportionately reducing the liability of breakage and entanglement of the yarn ;
also to so arrange the apparatus that, the yarn is unwound from a flanged or
other bobbin with more uniformity of tension, than is the case when the
bobbin is rotated by the drag on the yarn as it is unwound from the bobbin.
In describing our invention in detail, reference is made to the accompanying
drawing, representing an elevation of a flanged bobbin with which is combined
our invention.
A flanged bobbin indicated by A is placed upon a stationary rail B and
retained in its position by a spindle projecting from the said rail and
inserted in the centre hole of the bobbin.
The spindles for receiving the cops, spools, or other bobbins on which the
yarn from bobbins A or the like is to be wound, are of the ordinary description,
mounted and operated in the ordinary manner, but instead of drawing the yarn
direct from the flanged or other bobbins A in a manner that the said bobbins
rotate, or in case the bobbins do not rotate, for the yarn as it is unwound from
the bobbins A to be drawn in contact with the top flange of the said bobbins,
as is now the common practice; we introduce to each flanged or other stationary
bobbin A a thread guide or carrier. The carrier boss I) is provided with a
spindle E and placed on the top of a bobbin A, the spindle E engaging in the
centre hole of said bobbin.
The yarn Y is conducted from each bobbin through a twizzle F formed at the
bottom of the vertical arm of the thread guide or carrier G, the yarn may then
pass as shown upwards through the twizzle Fat the top of the other vertical
arm of the said thread guide G, and forward in any convenient manner to the
rotating spindle carrying the cop, or bobbin on which the yarn Y is to be
wound. The drag on the yarn Y as it is drawn from the non-rotating bobbin A
causes the thread guide or carrier (i to rotate around the bobbin A, thus by the
rotation of the thread guide G the yarn is unwound from the bobbin in a
manner that the tension on the yarn is reduced to a minimum, consequently
reducing the liability of breakage.
Upon the boss of the thread guide is placed a removable metal bowl
or collar H the weight of which acts as a brake to the rotating thread guide G,
allowing the yarn to be uniformly unwound from the bobbin A, thereby pre-
venting the over running of the delivery and consequent liability of entangle-
ment of the yarn.
By forming the thread guide of light material with the arm of twizzle F
projecting some distance below the top Hange of bobbin A somewhat as shown,
the yarn taken up by the revolving spool, bobbin, cop, or the like, is readily
unwound from the bobbin A, without rotating the said bobbin, or the said varn
coming in contact with the top flange of bobbin A and by the application of
the bowl or collar H, in the manner as herein before described, the liability of
the free unwinding and variation in the tension of the yarn Y is materially
prevented.
It will be obvious to persons skilled in the art of winding yarn, that in some
cases, the upper twizzle F1 of the yain guide G may be dispensed with, such as
for example, when there is a considerable distance between the top of the
stationary bobbin A and the ordinary yarn guide employed for building the
yarn as it is unwound from the bobbin A upon a spool or cop spindle, the

page_text: angle or direction of the upward course of the yarn Y from the twizzle 1',
being such that the upper flange of the bobbin A is cleared.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, we declare that what
we claim as our invention is:-
A thread guide arranged substantially in the manner as shown and described,
adapted so as to be rotated by the yarn as it is unwound from a non-rotating
bobbin for the purpose as herein before set forth.
1 (1
1
1000
JOHN WAUGH,
Agent, Sunbridge Chambers, Bradford.