IMPROVEMENTS IN MACHINERY FOR THE MANUFACTURE OF BOBBINS, MORE PARTICULARLY SUCH BOBBINS AS ARE USED IN RING SPINNING."
Year: 1880

page_text: LETTERS PATENT to William Dixon and John Dixon, of Steeton, in the
County of York, Bobbin Manufacturers, for an Invention of "IMPROVEMENTS
IN MACHINERY FOR THE MANUFACTURE OF BOBBINS, MORE PARTICULARLY
SUCH BOBBINS AS ARE USED IN RING SPINNING."
PROVISIONAL SPECIFICATION left by the said William Dixon and John
Dixon at the Office of the Commissioners of Patents on the 9th December
1880.
WILLIAM DIXON and JOHN DIXON, of Steeton, in the County of York, Bobbin
Manufacturers. "IMPROVEMENTS IN MACHINERY FOR THE MANUFACTURE OF
BOBBINS, MORE PARTICULARLY SUCH BOBBINS AS ARE USED IN RING SPINNING."
Our Invention has special reference to bobbins, tubes, and spools used by
machinery for spinning cotton, wool, silk, and similar fibres, and has for its object
to "rime," or in other words, cut out the centre hole of such bobbins, tubes, or
spools, either parallel or taper, in such a manner that the same is accurately true
with the circumference, which accuracy is of great importance to bobbins used in
ring spinning machines upon spindles known as "Rabbeth," Booth Sawyer," and
others of similar construction.
"" "5
We accomplish our object in the following manner :-To a suitable frame we
mount two radiating arms which are connected together by rods attached to a
double lever secured on a rock shaft, to which is also secured another lever to
which reference is hereafter made. To the upper arm is mounted a set of pullies,
and to the lower arm are two sets of revolving pullies driven by a suitable belt.
The bobbins to be "rimed" are placed seperately between the bottom revolving
pullies resting upon the peripheries of the same, and are thereby held by bringing
the top and bottom arins towards each other such a distance that sufficient
pressure is put by the before mentioned pullies upon the bobbin to cause the same
to revolve and overcome the resistance of the cutting tool when "riming" the
hole.

page_text: The arms are brought towards each other by the movement of a hand lever
which actuates a cam that is in connection with another lever acting upon the
before mentioned lever secured on rock shaft, which shaft oscillates, expanding
or closing the arms according to the direction in which the hand lever is moved.
The before mentioned hand lever is also in connection with a slide, so arranged
and constructed that it can be adjusted to cause the tool which is mounted thereon
to bore or "rime" out the hole parallel or taper as required. This slide is actuated
at the same time as the upper and lower arms until the pullies come in contact
with the bobbin, when the arms remain stationary and the slide continues its
course; on reversing the direction of the hand lever directly the tool is clear of
the bobbin, the upper and lower arms open out and liberate the bobbin, tube, or
spool.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Dixon and John Dixon in the Great Seal Patent Office
on the 8th June 1881.
WILLIAM DIXON and JOHN DIXON, of Steeton, in the County of York, Bobbin
Manufacturers. "IMPROVEMENTS IN MACHINERY FOR THE MANUFACTURE OF
BOBBINS, MORE PARTICULARLY SUCH BOBBINS AS ARE USED IN RING SPINNING."
Our Invention has special reference to bobbins, tubes, and spools used by
machinery for spinning cotton, wool, silk, and similar fibres, and has for its object
to "rime," or in other words cut out the centre hole of such bobbins, tubes, or
spools either parallel or taper, in such a manner that the hole is accurately true
with the circumference of the bobbin, tube, or spool, which accuracy is of great
importance to bobbins used in ring spinning machines upon spindles known as
Rabbeth," "Booth Sawyer," and others of similar construction.
"
The Invention consists in mounting on a suitable frame two radiating arms
having revolving pullies mounted thereto; these arms are actuated by a lever and
cam, which, when moved in one direction, bring the arms together and grip the
circumferences of the bobbins between the upper and lower pullies. The before
mentioned lever is connected to a slide which can be regulated to any angle, so
that the tool fixed to the said slide for rimering out the hole in the bobbin, tube,
or spool (true with the outside movement of the circumference of the same) will
cut the hole taper or parallel to suit the shape and size of spindle upon which the
bobbin has to work.
We will now give a detailed description of our Invention aided by the
accompanying Drawings, in which Figure 1 represents a side elevation of our
apparatus; Figure 2 is a plan of the same; Figure 3 a front end view, Figure 4
a back end view, and Figure 5 an enlarged detailed plan of the cam we use for
actuating the radial arms. The Drawings are marked with letters of reference,
corresponding letters indicating the same parts where they appear in the various
Figures.
The two uprights are indicated by the letters A, and to which are mounted two
radiating arms B and B', which are connected together by rods C and C¹ that are
also attached to double lever D secured on rock shaft D¹, to which is also secured
another lever to which reference is hereafter made.
To the upper radial arm B is mounted a pair of pullies E, and to the lower
radial arm B are two pairs of pullies F, to which motion is communicated by
strap G passing round the pullies G' and G³, and which is shewn by the strong
dotted lines. By mounting the strap in the manner described, when the arms are
apart ready for a bobbin to be placed upon the peripheries of pullies F the belt is
slack, but when brought together so that the bobbin is gripped between the
pullies E and F the belt G is tightened.
The arms B and B' are actuated by the movement of lever H, one end of which
is secured to a spindle passing through upright socket J; at the bottom of this
spindle is secured cam K, shewn in detail in Figure 5, and when lever H is moved
in the direction of flying arrow the cam K partly revolves on its axis, forcing the
lever L, which is centred at L³, backward from the cam, when the hook end of
lever L at L2 will actuate the lever M secured on rock shaft D', bringing together
the radial arms B and B¹ by means of the before mentioned double lever D and
connecting rods C and C', thus gripping the bobbin, tube, or spool placed between
the pullies E and F.
The before mentioned lever H is connected by rod N with slide O, so that by
the movement of lever H both the radial arms and slide are actuated at the same
time. To slide O is fixed tool P, and when lever H is moved in the direction of

page_text: flying arrow the slide O travels towards the revolving bobbin between the
pullies E and F, cutting out the hole of bobbin, tube, or spool true with the
circumference of same.
The slide O can be set at any angle with the radial arms, so that the hole in
the bobbin, tube, or spool can be cut out either parallel or taper, as required, to
suit the shape and size of spindle upon which the bobbin has to work.
The cam shewn in Figure 5 is so constructed that when the set screw R in
lever L has been regulated to suit the size of bobbin, tube, or spool to be rimered
as soon as the same is sufficiently gripped between the pullies, the point of set
screw will be pressing on the circumference of cam K at K', which part is equi-
distant from the centre of spindle hole J, and on the cam turning round its axis
the distance corresponding to the length of hole to be rimered the lever M and
radial arms will then remain stationary, the slide O and tool P travelling onward
the distance according to the length of hole required to be rimered. On reversing
the direction of lever H the tool is withdrawn and radial arms opened, liberating
the bobbin, tube, or spool ready for the operation to be repeated.
What we claim as our Invention is,-
The arrangement and combination of the radial arms and pullies mounted
thereon, substantially in the manner and for the purpose as hereinbefore described
and illustrated by the accompanying Drawings.
The application of cam K, substantially in the manner and for the purpose as
herein before described.
•
The combination of the several parts of mechanism, arranged substantially in
the manner and for the purposes hereinbefore described and illustrated by the
accompanying Drawings.
In witness whereof, we, the said William Dixon and John Dixon, have
hereunto set our hands and seals, this Fourth day of June, in the year of
our Lord One thousand eight hundred and eighty one.
WILLIAM DIXON. (L.S.)
JOHN DIXON.
(L.S.)