A NEW OR IMPROVED METHOD OF UTILIZING WASTE JET
Year: 1884

page_text: I GODFREY HIRST of Aislaby near Whitby in the County of York Jet
Ornament Manufacturer do hereby declare the nature of my invention for A NEW
OR IMPROVED METHOD OF UTILIZING WASTE JET to be as follows:-
I take Jet, which may be either the commoner qualities of the material or the
waste from any Jet and I reduce it to a powder. I take this powder and combine
it with a sufficient quantity of caoutchouc, Vulcanite, Xylonite, Celluloid or the
like productions in a liquid or semi-liquid state until I produce a stiff paste, being
careful to obtain thorough and regular incorporation. After getting rid of the
excess of solvent in the usual way I subject the pasty mass to strong pressure in
moulds of any desired form. If Caoutchouc or Vulcanite be employed the mass is
vulcanized whilst still in the mould. If Xylonite, Celluloid or the like productions
are used the mass is seasoned by gentle heat in the usual way. By these means
I produce an article of a brittle or tough nature according to the relative quantities
of Jet powder and binding material employed and one which is capable of being
applied to the same purposes as Jet.
Dated this geoond day of Tanum 1004

page_text: I, GODFREY HIRST of No 1 Cleveland Villas Whitby (formerly of Aislaby near
Whitby) Jet Ornament Manufacturer do hereby declare the nature of my
invention for A NEW OR IMPROVED METHOD OF UTILIZING WASTE JET and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :—
I take Jet, which may be either the commoner qualities of the material or the
waste from any Jet and I reduce it to an impalpable powder. I take Caoutchouc
Vulcanite, Xylonite Celluloid or the like materials which may be obtained from
the makers of these articles in a liquid or semi-liquid state or which may be
brought into a liquid or semi-liquid state by means of the usual solvents.
I combine a sufficient quantity of the powdered Jet with any one of the said
binding materials I may choose until I produce a stiff paste being careful to obtain
thorough and complete amalgamation. I submit this paste to strong pressure in
moulds of any desired size or form. If Caoutchouc or Vulcanite be employed the
mass must be Vulcanized whilst it is still in the mould and under pressure. If
Xylonite or Celluloid be employed the mass after pressure is seasoned by exposure
to a continuous heat of from ninety to one hundred & ten degrees Fahr. in the
usual way until the solvent is evaporated I find that from two and a quarter to
three and a half parts of Jet may be employed with or to one part of the binding
material and the mass thus prepared may be cut or sawn into sheets or slabs of
any desired size or thickness, and possesses a brittle or tough nature according to
the relative quantities of Jet powder and binding material employed & which inay
be used for all the purposes for which Jet is now used and also for purposes to
which the natural Jet by reason of its brittleness is inapplicable.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
The manufacture of a new or improved Compound, composed of a mixture of
pulverized jet with a suitable binding material substantially as herein before
described and set forth.
TR
11
1004