IMPROVEMENTS IN MACHINES FOR WINDING YARNS
Year: 1886

page_text: Date of Application, 31st May, 1886.
Complete Left, 28th Feb., 1887.
Complete Accepted, 1st Apr., 1887.
I BENJAMIN ALFRED DOBSON, Engineer, of Bolton, in the County of Lancaster, do
hereby declare the nature of said Invention for IMPROVEMENTS IN MACHINES FOR
WINDING YARNS, to be as follows:-
My improvements are adapted to those machines in which cotton or other fibrous
material is wound upon wooden bobbins or paper tubes, without heads and relate chiefly
to the method of applying the traverse motion.
I employ two lines of drums in a double machine, one for each side and between
these drums and above them is placed the traverse cam, so arranged that it can be
easily taken out to be changed. It is also arranged in such a manner that the effort
of counteracting the shock of reversing the traverse of one side of the machine, is partly,
or in whole, effected by the opposite traverse.
The machine may be provided with a stop motion such as that applied to the
machine described in the Specification to Letters Patent granted to me on the
13th January 1885 No. 429 and when winding single yarns the full traverse of the
machine the stop motion may be placed out of gear, but a further improvement of
mine consists in changing the traverse cam for a cam having two or more throws in
its circumference.
When a two throw cam is employed each throw is rather less than one half of the
longest or single throw cam and by placing additional traverse thread guides on the
traverse rods and by bringing the stop motion into gear I am enabled to wind
simultaneously on a single paper or other tube, two bobbins for each drum or spindle
and similarly when a traverse cam with three or more throws is employed I am able
to wind simultaneously three or more bobbins for each drum or spindle. When this
is done on paper tubes the wound bobbins can be separated by cutting and dividing
the tube in the space between each bobbin.
It is necessary to employ the stop motion when doing this, otherwise when one end
broke, the other, or others, would be still running and the result would be unequal and
spoiled bobbins.
In place of employing a traverse cam with two or more throws the same result
might be obtained by reducing the size of the cam and proportionately increasing the
speed of rotation.

page_text: Improvements in Machines for Winding Yarns.
1 BENJAMIN ALFRED DOBSON, Engineer, of Bolton in the County of Lancaster do
hereby declare the nature of said Invention for IMPROVEMENTS IN MACHINES FOR
WINDING YARNS, and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
My improvements are adapted to those machines in which cotton or other fibrous
material is wound upon wooden bobbins or paper tubes without heads and relate
chiefly to the method of applying the traverse motion.
I employ two lines of drums in a double machine one for each side and between
these druins and above them is placed the traverse cam so arranged that it can
be easily taken out to be changed. It is also arranged in such a manner that the
effort of counteracting the shock of reversing the traverse of one side of the machine
is partly or in whole effected by the opposite traverse.
The machine may be provided with a stop motion such as that applied to the machine
described in the Specification to Letters Patent granted to me on the 13th January 1885
No. 429 and when winding single yarns the full traverse of the machine the stop
motion may be placed out of gear but a further improvement of mine consists in
changing the traverse cam for a cam having two or more throws in its circumference.
When a two throw cam is employed each throw is rather less than one half of the
longest or single throw cam and by placing additional traverse thread guides on the
traverse rods and by bringing the stop motion into gear I am enabled to wind
simultaneously on a single paper or other tube two bobbins for each drum or spindle
and similarly when a traverse cam with three or more throws is employed I am able
to wind simultaneously three or more bobbins for each drum or spindle. When this
is done on paper tubes the wound bobbins can be separated by cutting and dividing
the tube in the space between each bobbin.
It is necessary to employ the stop motion when doing this otherwise when one end
broke the other or others would be still running and the result would be unequal and
spoiled bobbins.
In place of employing a traverse cam with two or more throws the same result
might be obtained by reducing the size of the cam and proportionately increasing the
speed of rotation.
And in order that my Invention may be fully understood and readily carried into
effect I will describe the accompanying three sheets of Drawings reference being had
to the figures and letters marked thereon.
Figure 1 is a sectional elevation and Fig. 2 a plan of a machine for winding yarns
embodying my Improvements.
Fig. 3 is a plan of the same machine but showing a three throw cam applied according
to my Invention.
Fig. 4 is a view of a single throw cam and its bearings.
Fig. 5 is a view of the single throw cam detached from its bearings.
Similar letters refer to similar parts throughout the several views.
In these views. a designates the frame of the machine; b b are the shafts of the
driving drums the shafts being geared together by the toothed wheels cc; d d are
the intermediate rollers; ee the bobbin holders which are pivoted and free to swivel
on the shaft f.

page_text: The stop motion as described in my said Patent No. 429 of 1885 consists of the
revolving wiper shaft g the needles h¹ supported in an oscillating needle box h said
needle box having a tail piece which when the machine is working properly
engages a catch piece on the spindle of the brake shoe i but when an end breaks its
needle falls and being struck by the wiper shaft y the needle box his oscillated the
catch piece is released and the spring on the spindle shoots forward the brake i to
stop the bobbin in the manner specified in my aforesaid Patent.
The traverse cam may be a single throw cam k as shown in Fig. 4 or a two throw
cam k as shown in Fig. 2 or a three throw cam k² as shown in Fig. 3 or may even
have more than three throws in its circumference. The traverse cam is so mounted
that it may be easily removed and changed when required and is driven from a
pinion on the drum shaft by means of a gear secured to the cam.
The traverse
cam is supported in bearings in the fixings m which are secured to the rails
form guides for the traverse rods n.
and
In the arrangement with a two throw traverse cam k¹ shown in Fig. 2 there are two
thread guides on the traverse rods n to which are secured the traverse bars o. Mounted
on these bars o are two antifriction rollers p which work in the groove in the traverse
cam k¹. The thread guides a¹ are thus moved backward and forward twice during
each revolution of the cam k¹ and thus two bobbins may be wound simultaneously as in
Fig. 2. The traverse of the thread guides n' is so arranged that the guides on one side
of the frame move in the opposite direction to those on the other side as indicated by
the arrows in Fig. 2 and thus jar or shock in reversing the traverse is obviated.
Similarly in the arrangement with a three throw cam shown in Fig. 3 there are
three thread guides n' on the traverse rods a and three bobbins for each drum may be
wound simultaneously.
To change the traverse cam it is only necessary to unscrew the traverse rods n from
the bars o and slide them back clear of their guides m and then release and remove
the guides m and the antifriction rollers when the cam can be lifted out as
shown in Fig. 5 and another traverse cam substituted.
When employing a traverse cam with two or more throws in order to wind two or
more bobbins for each drum simultaneously it is necessary to employ the stop
motion which is brought into gear by passing the yarn through the eyes of the
needles as shown on the left hand side of Fig. 1 but when winding single bobbins
the full traverse of the machine with a single throw cam such as & Figs. 4 and 5 it is
not necessary to pass the yarn through the eyes of the needles h' which may be removed
and the stop motion disconnected as shown on the right hand side of Fig. 1.
Having now particularly described and ascertained the nature of my said Invention
and in what manner the same is to be performed 1 declare that what I claim is
1. Winding simultaneously on each bobbin or tube two or more bobbins by means
of two or more traverse thread guides for cach drum and a traverse cam with two or
more throws substantially as herein set forth.
2. The use and application of a traverse cam with two or more throws in combination
with two or more traverse thread guides to each drum and a stop motion substantially
as herein described with reference to the accompanying Drawings.
3. The general combination and arrangement of mechanism substantially as shown
and described for the purposes specified.
Dated this 36th day of Wabru 1997
H. B. BARLOW,
17, St. Ann's Square, Manchester,
Agent for Applicant.