AN IMPROVED CONSTRUCTION OF BOBBIN AND SHUTTLE TONGUE FOR Commnnc
Year: 1880

page_text: LETTERS PATENT to Thomas Pearson, of Bolton, in the County of Lancaster,
Manufacturer, and John Taylor, of the same Place, Manager, for an Invention
of "AN IMPROVED CONSTRUCTION OF BOBBIN AND SHUTTLE TONGUE FOR
Commnnc
PROVISIONAL SPECIFICATION left by the said Thomas Pearson and John
Taylor at the Office of the Commissioners of Patents on the 30th August
1880.
<s
THOMAS PEARSON, of Bolton, in the County of Lancaster, Manufacturer, and
JOHN TAYLOR, of the same Place, Manager. AN IMPROVED CONSTRUCTION OF
BOBBIN AND SHUTTLE TONGUE FOR SHUTTLES."
Shuttle bobbins of the usual construction are made with the larger end
sufficiently long to allow space for an external annular groove or a recess to be
formed in it, in which a wire or a clip in the shuttle usually fits to retain the.
bobbin in its place; the rim that forms the outer side of the annular groove or
recess frequently breaks and allows the bobbin to get loose; also the wire or clip in
the shuttle frequently works loose and causes injury. Our Invention consists in
dispensing with this external groove or recess in the bobbin and the wire or clip in
the shuttle, and in lieu thereof we form an internal annular or other shaped cavity
in the base of the bobbin, and on the shuttle tongue we fix a pin or projection,
which pin when the bobbin is placed on the tongue enters the cavity inside the
base of the bobbin through a slot; the bobbin is then turned partly round and the
pin retains the bobbin securely in its place. Bobbins thus made may be shorter
than those made in the usual manner, which is a great advantage, or the space
formerly allowed for the external groove or recess may be added to the length of
the bobbin, which is thus rendered capable of holding a much greater length of
yarn, and the bobbins are not liable to get loose in the shuttle while weaving.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Thomas Pearson and John Taylor in the Great Seal Patent Office
on the 26th February 1881.
THOMAS PEARSON, of Bolton, in the County of Lancaster, Manufacturer, and
JOHN TAYLOR, of the same Place, Manager. "AN IMPROVED CONSTRUCTION OF
BOBBIN AND SHUTTLE TONGUE FOR SHUTTLES."
Shuttle bobbins of the usual construction are made with the larger end
sufficiently long to allow the space for an external annular groove or a recess to be
formed in it, in which a wire or a clip in the shuttle usually fits to retain the
bobbin in its place; the rim that forms the outer side of the annular groove or
recess frequently breaks and allows the bobbin to get loose, also the wire in the
shuttle frequently works loose and grooves the reed, which cuts the yarn and
otherwise causes injury, and the clips works loose and come out.
In performing our Invention we dispense with this external groove or recess in
the bobbin and the wire or clip in the shuttle, and in lieu thereof we form an
internal annular or other shaped cavity in the base of the bobbin, and on the
shuttle tongue we fix a pin or projection, which pin when the bobbin is placed on
the tongue enters the cavity inside the base of the bobbin through a slot; the
bobbin is then turned partly round and the pin retains the bobbin securely in its
place; or instead of the pin we put a spring catch, which closing as the bobbin (in
which the slot is rendered unnecessary) is forced on the tongue opens automatically
on reaching the cavity and so secures the bobbin..
The spring may be compressed either by the thumb or a wire so placed in the
shuttle as to close it as the tongue is raised for changing the bobbin.
Bobbins thus made may be shorter than those inade in the usual manner, which
is a great advantage, or the space formerly allowed for the external groove or recess
may be added to the length of that portion of the bobbin which holds the yarn,
and which is thus rendered capable of holding a much greater length of yarn, and
the bobbins are not liable to get loose in the shuttle while weaving.
And in order that our Invention may be fully understood and readily carried into
effect we will describe the accompanying Sheet of Drawings, reference being had to
the Figures and letters marked thereon.
Fig. 1 shows in section a bobbin constructed according to our Invention; a is
the bobbin and b is the hole extending from one end of the bobbin to the other,
made as usual, through which the shuttle tongue passes; c is the recess or cavity in
the base of the bobbin, and d is the slot through which the pin or projection near
the base of the shuttle tongue passes.
Fig. 2 shows a shuttle tongue to which our Invention is applied; e is the pin or
projection formed with or fixed to the shuttle tongue. The bobbin is placed on the
tongue and the slot d passes over the pin e; the bobbin is then turned partly round
and laid in the shuttle; the pin e effectually prevents the bobbin from moving from
its place.
Instead of the pin e a spring catch might be used, in which case the slot & would
be unnecessary.
We make the shuttle tongue by preference round at the base and of the same
diameter as the hole that extends through the bobbin; we thus obtain greater
strength where the pin is formed or fixed, and as the base of the tongue fits the
hole in the bobbin it holds the bobbin more securely than if made in the usual
way. One or more pins may be used and a corresponding number of slots made in
the base of the bobbin. The bobbin or spool may be made of any material and in
one or more parts, and metal or other material may be used in the formation of the
base. The cavity may be of any desired size or shape.

page_text: Having stated the nature of our Invention, and described the manner of
performing the same, we declare that we claim,-
1. The internal cavity in the base of the bobbin, substantially as and for the
purpose shown and described.
2. The pin or projection near the base of the shuttle tongue, substantially as and
for the purpose shown and described.
In witness whereof, I, the said Thomas Pearson, for myself and on behalf of
the said John Taylor, have hereunto set my hand and seal, this Twenty
fourth day of February, One thousand eight hundred and eighty one.
THOMAS PEARSON (50)