IMPROVEMENTS IN BOBBINS
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
We, WILLIAM DIXON and JOHN DIXON of Steeton in the County of York,
Bobbin Manufacturers do hereby declare the nature of our invention for
IMPROVEMENTS IN BOBBINS to be as follows:-
Our invention relates to certain improvements in Rabbeth and other bobbins
mainly used in ring spinning and by machinery for the preparation and spinning
of cotton and other fibres and has for its object the construction of the bobbins in
such a manner that they are stronger and more durable which we accomplish in
the following manner :-
Near to one or both ends of each bobbin we form a groove or recess into which,
we press a solid metallic hoop or ferrulo previously prepared by forcing on to a
turned taper mandril whereby the true circle of the ferrule is insured, whereby the,
grain of the wood is held more rigidly and compactly together and the liability of
the bobbin to split is considerably reduced.
'

page_text: COMPLETE SPECIFICATION.
We, WILLIAM DIXON, and JOHN DIXON, of Steeton, in the County of York,
Bobbin Manufacturers do hereby declare the nature of our invention for
"IMPROVEMENTS IN BOBBINS and in what manner the samo is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
"
5
Our invention relates to certain improvements in bobbins and tubes used on ring
frames and other machines for the preparation spinning and doubling of cotton and
other fibres; and has for its object, the construction of the bobbins in such a
manner, that they are stronger and more durable than bobbins of the ordinary
construction: and consists in placing a solid metallic hoop or ferrule on to the 1
bobbins wood tubes or barrels, and compressing the former into cut grooves,
whereby the grain of the wood is held more compact, and the liability of the
bobbins tubes or barrels to split, is-considerably reduced.
In the accompanying drawings, Fig. 1. represents a side elevation of the apparatus
for placing and compressing the metallic hoops or ferrules in the grooves cut in 1
the bobbins. Fig. 2. is a front view of the same, and Fig. 3, a sectional plan through
line a, b. The remainder of the figures are details, are hereinafter explained, and
in all the figures similar letters indicate similar parts.
The bobbins, tubes, or barrels are formed with a groove, or recess near to one
or both ends of the same for receiving the metallic hoops or ferrules, which 2
may be cut from metal tubing and pressed into the grooves in the following
manner.
The pullies A, and A', are mounted on a shaft carried by the machine frame, and
on the same shaft is secured a pinion wheel B, which gears with the spur
wheel C, secured on one end of a shaft, to the other end of which is secured the 2
disc crank D; this is connected by rod E to the sliding head 'F, the bottom end of
which is prepared for the attachment of the ram punches G², for pressing the bobbing
through the taper sockets H, fixed in the circular plate J.
The circular plate is moved at intervals at the time when the sliding head F
is at the top portion of the stroke; and is effected by the revolving cam K, 3
engaging with the lever L, thereby causing it to oscillate on its fulcrum, and the
toothed quadrant M, to rotate the pinion N, to and fro. This pinion is secured on
.a short shaft supported by the machine frame, and to the other end of the said
shaft is secured another pinion N', gearing with the teeth of the sliding_rack P ;
to which is jointed the catch arm R, which engages with the projections J, on the 3
underside of plate J, and moves the said plate one quarter of a revolution at each
stroke of the machine.
Fig. 4 is a sectional detail of a portion of the circular plate J, cut through the
centre of one of the taper sockets H, used for passing the metallic ferrules F³, over
a portion of the bobbins as far as the grooves G. The bobbins and ferrules are
placed in the taper sockets H, as shown by Fig. 4, and when moved underneath the
sliding head F, by the reciprocating rack P, and catch arm R, in the manner as
before described; the centre portion G, of the ram punch (shewn in elevation by

page_text: Fig. 5, and plan by Fig. 6) comes in contact with the bobbin end, forcing it down
the taper socket H, and through the metallic hoop or ferrule F', until the latter is
opposite the groove G¹. The end of the flexible shell G, shewn in section by
Fig. 7, is then in contact with the ferrule F', by which it is pressed along with the
bobbin through the remainder of the taper socket, which slightly compresses the
ferrule into the groove G¹.
When a number of bobbins have been operated upon in the manner described;
in order to complete the compression of the ferrules, the ram punch and taper
sockets H, are changed; the former being substituted by a solid punch shewn by
Fig. 8, and the latter by sockets of smaller diameter shewn by Fig. 9. The bobbins
are placed in the sockets, and the circular plate J actuated in the manner as before
described; and on the decent of the ram punch G³, the shoulder S', of the same,
comes against the end of the bobbin in the socket underneath; thereby forcing it
through the taper holed socket, by which the ferrule is further compressed into tho
groove to such an extent, that the inner diameter grips the wood; so that the
grain is more compact, the bobbins made stronger and more durable, and are not so
liable to split as is the case with bobbins without ferrules.
When tubes and barrels are strengthened with ferrules, they are compressed into
the grooves in the same manner as before described.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is
The strengthening of bobbins, tubes or barrels by having solid metallic hoops or
ferrules compressed into grooves.
Ram punches covered with flexible shells G³, substantially in the manner and for
the purpose as hereinbefore'described.
WAUGH & CHAPMAN,
- 70, Chancery Lane, W.C.