AN IMPROVEMENT OR IMPROVE- MENTS IN THE MANUFACTURE OF BOBBINS USED IN WINDING, TWISTING, AND WEAVING FIBROUS SUBSTANCES
Year: 1855

page_text: LETTERS PATENT to Matthew Butcher, of Birmingham, in the County of
Warwick, Manufacturer, and Thomas Henry Newey, of Birmingham
aforesaid, Machinist, for the Invention of "AN IMPROVEMENT OR IMPROVE-
MENTS IN THE MANUFACTURE OF BOBBINS USED IN WINDING, TWISTING, AND
WEAVING FIBROUS SUBSTANCES."
Sealed the 29th February 1856, and dated the 1st September 1855.
PROVISIONAL SPECIFICATION left by the said Matthew Butcher and
Thomas Henry Newey at the Office of the Commissioners of Patents,
with their Petition, on the 1st September 1855.
We, MATTHEW BUTCHER, of Birmingham, in the County of Warwick,
Manufacturer, and THOMAS HENRY NEWEY, of Birmingham aforesaid,
Machinist, do hereby declare the nature of the said Invention for "AN
IMPROVEMENT OR IMPROVEMENTS IN THE MANUFACTURE OF BOBBINS USED IN
WINDING, TWISTING, AND WEAVING FIBROUS SUBSTANCES," to be as follows:-
The bobbins used in winding, twisting, and weaving fibrous substances are
usually made of wood by the process of turning; the flanges or ends of the said
bobbins, from the direction of the grain of the wood, frequently warp and are
easily broken.
Our Invention consists in making the said bobbins in the following manner :-
We make a mixture of gutta percha, glue, and grit or sharp sand, or aluminous
earth, and we cast the said mixture in suitably formed moulds. We insert

page_text: rings or collars of metal at the ends of the bobbin, for the purpose of forming
the bearings on which the said bobbins work. Where from the large size
of the bobbins or otherwise it is desirable to give the said bobbins additional
strength, we introduce metallic supports, for the purpose of adding to the rigidity
of the composition. Bobbins made according to our Invention are cheaper
than wooden bobbins, are not liable to break, and when no longer fit for use
the material of which they are made may be re-cast. Although we prefer the
composition described, yet we do not limit ourselves thereto, as the same
object may be effected by modifications of the mixture we have described.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Matthew Butcher and Thomas Henry Newey in the Great
Seal Patent Office on the 29th February 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, MATTHEW
BUTCHER, of Birmingham, in the County of Warwick, Manufacturer, and
THOMAS HENRY NEWEY, of Birmingham aforesaid, Machinist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the First day of September, in the year of our Lord One
thousand eight hundred and fifty-five, in the nineteenth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto us, the said
Matthew Butcher and Thomas Henry Newey, Her special licence that we, the
said Matthew Butcher and Thomas Henry Newey, our executors, administra-
tors, and assigns, or such others as we, the said Matthew Butcher and Thomas
Henry Newey, our executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "AN IMPROVEMENT OR
IMPROVEMENTS IN THE MANUFACTURE OF BOBBINS USED IN WINDING, TWISTING, AND
WEAVING FIBROUS SUBSTANCES," upon the condition (amongst others) that we,
the said Matthew Butcher and Thomas Henry Newey, our executors or
administrators, by an instrument in writing under our or their hands and
seals, or under the hand and seal of one of us or them, should particularly
describe and ascertain the nature of the said Invention, and in what manner
the same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately after
the date of the said Letters Patent.

page_text: NOW KNOW YE, that we, the said Matthew Butcher and Thomas Henry
Newey, do hereby declare the nature of the said Invention, and in what
manner the same is to be performed, to be particularly described and
ascertained in and by the following statement thereof, that is to say:-
Our Invention consists of the methods, herein-after particularly explained
and illustrated in the accompanying Drawing, of manufacturing bobbins used
in winding, twisting, and weaving fibrous substances. The said bobbins are
usually composed of wood, and manufactured by the process of turning; the
flanges or ends of the said ordinary bobbins frequently warp and are easily
broken in consequence of the direction of the grain of the said flanges or ends.
Our Invention consists in making the said bobbins of compositions consisting
mainly of gutta percha. We prefer to use a mixture of gutta percha and grit
or sharp sand, or aluminous earth, or any powdered solid which when incor-
porated with the gutta percha by fusion of the latter effects the hardening of
the said gutta percha. We press the said mixture in suitably formed moulds.
As the method of pressing and moulding gutta percha is well known and
commonly practised, and constitutes no part of our Invention, we do not
think it necessary to describe the same.
Figure 1 represents in elevation, and Figure 2 in section, a bobbin con-
structed according to our Invention. The whole of the said bobbin, excepting
the parts marked a, b, is composed of hardened gutta percha. The parts a, b,
are rings or collars of metal, inserted in the ends of the bobbin for the purpose
of forming the bearings on which the bobbin works. The said parts a, b, may
either be inserted in the ends of the bobbin, by being put into the moulds
in which the gutta percha is pressed to the required form, or the said parts
a, b, may be fixed in the bobbin after the said bobbin has been completed ;
the said parts a, b, being heated and inserted in their places by fusion of the
gutta percha. Figure 3 represents, in section, another bobbin constructed
according to our Invention. The figure of the bobbin itself, as well as the
form of the bearings c, d, differ from those represented in Figure 2, but as
we believe these differences will be understood by an inspection of Figure 3,
we do not think it necessary to describe the same. Figure 4 represents in
elevation, and Figure 5 in end view, a bobbin similar to that represented
in Figures 1 and 2, excepting that a series of pins, marked e, e, are inserted in
the edges of the flanges, as is required in some manufactures where the said
bobbins are used. The pins e, e, are inserted by being made hot, and pressed
into the edges of the flanges. Where from the large size of the bobbins or
otherwise it is desirable to give to the said bobbins additional strength, we
introduce metallic or other supports for the purpose of adding to the rigidity

page_text: of the said bobbins; for example, the tubular part of the bobbin, Figures 1
and 2, may be made wholly of metal, and the collars a, b, may be made of
larger diameter, so as to give support to the flanges or ends of the bobbin.
For all ordinary purposes, however, we find that gutta percha hardened with
grit or aluminous earth is sufficiently rigid when made into bobbins without
the use of metallic or other supports, excepting the bearings a, b, c, d. Bobbins
made according to our Invention are not liable to break, and when no longer
fit for use the material of which they are made can be re-cast. Although we
prefer the compositions described, yet we do not limit ourselves thereto, as the
same object may be effected by the incorporation with gutta percha of a great
variety of powdered solids; neither do we limit ourselves to any particular
proportion between the gutta percha and the powder incorporated therewith,
as the proportion of solid matter introduced into the gutta percha must be
varied to suit the particular degree of hardness which is required.
Having now described the nature of our said Invention, and the manner of
carrying the same into effect, we wish it to be understood that we do not
limit ourselves to the precise details herein described, as the same may be
varied without departing from the nature of our said Invention; but we claim
as our Invention, manufacturing bobbins used in winding, twisting, and
weaving fibrous substances, of gutta percha, hardened by the introduction of
grit or sharp sand, aluminous earth, or other solid capable of hardening the
same, as herein described, and illustrated in the accompanying Drawing.
In witness whereof, we, the said Matthew Butcher and Thomas Henry
Newey, have hereunto set our hands and seals, this Nineteenth day
of February, in the year of our Lord One thousand eight hundred
and fifty-six.
Witness,
GEORGE SHAW.
MATTHEW BUTCHER.
(L.S.)
THOMAS HENRY NEWEY. (LS.)