IMPROVEMENTS IN THE MANU- FACTURE OF CRUCIBLES AND OTHER VESSELS SUITABLE FOR CHEMICAL AND METALLURGICAL PURPOSES
Year: 1883

page_text: LETTERS PATENT to James Cartledge Waterhouse of Alverthorpe Wakefield
in the County of York for an Invention of "IMPROVEMENTS IN THE MANU-
FACTURE OF CRUCIBLES AND OTHER VESSELS SUITABLE FOR CHEMICAL AND
METALLURGICAL PURPOSES
"
PROVISIONAL SPECIFICATION left by the said James Cartledge Waterhouse
at the Office of the Commissioners of Patents on the 31st March 1883.
JAMES CARTLEDGE WATERHOUSE of Alverthorpe, Wakefield in the County of
York "IMPROVEMENTS IN THE MANUFACTURE OF CRUCIBLES AND OTHER VESSELS,
SUITABLE FOR CHEMICAL AND METALLURGICAL PURPOSES
"
The object of my invention is to render such crucibles and vessels more durable
than hitherto. The materials and approximate proportions of the materials used
in the manufacture may be as follows:
PROVISIONAL SPECIFICATION left by the said James Cartledge Waterhouse
at the Office of the Commissioners of Patents on the 31st March 1883.
JAMES CARTLEDGE WATERHOUSE of Alverthorpe, Wakefield in the County of
York "IMPROVEMENTS IN THE MANUFACTURE OF CRUCIBLES AND OTHER VESSELS,
SUITABLE FOR CHEMICAL AND METALLURGICAL PURPOSES
"
The object of my invention is to render such crucibles and vessels more durable
than hitherto. The materials and approximate proportions of the materials used
in the manufacture may be as follows:
Powdered Aluminous Fire Clay
Pulverized Plumbago free from lime
Purified Asbestos
Magnesia
Quartz
-
3 parts by weight.
21/2"
"
"
-
2
"
"
"
"
»
"
"
»

page_text: the said James Cartledge Waterhouse in the Great Seal Patent Office on the
29th September 1883.
"
JAMES CARTLEDGE WATERHOUSE of Alverthorpe Wakefield in the County of
York IMPROVEMENTS IN THE MANUFACTURE OF CRUCIBLES AND OTHER VESSELS 5
SUITABLE FOR CHEMICAL AND METALLURGICAL PURPOSES
The object of my Invention is to render such crucibles and vessels more durable
than hitherto.
The materials and approximate proportions of the materials used in the manu-
facture may be as follows:-
Powdered Aluminous Fire Clay
Pulverized Plumbago free from lime
Purified Asbestos
Magnesia
Quartz
-
->>
"
-
2
3 parts by weight.
2½"
"
"
"
»
4 "
"
"
"
"
"
and as much liquid Silicate of Soda as will make the ingredients plastic enough to
work and mould into the desired shapes
The quantities of the above ingredients may be varied in accordance with the
required qualities of the crucible or vessel.
"
As a further Improvement in some cases I mix silicate of soda, asbestos powder,
magnesia, and silex and apply a coating of such compound over the crucible or
vessel.
Having now described the nature of my said Invention and particularized the
same by details which answer well in practice I would have it understood that I
do not bind myself to use any particular quantity of any material for the crucibles
but regulate the ingredients in accordance with the required qualities of the
crucible or vessel what I do claim is :-
-
The application of asbestos in the manufacture of crucibles and other vessels
suitable for chemical and metallurgical purposes as and for purposes herein set
forth.
The application of silicate of soda in the manufacture of crucibles and other
vessels suitable for chemical and metallurgical purposes as and for purposes herein
set forth.
The combination of the various ingredients employed in the manufacture of
crucibles and other vessels suitable for chemical and metallurgical purposes
substantially as and for purposes herein set forth.
In Witness whereof I the said James Cartledge Waterhouse have hereunto
set my hand and seal this seventeenth day of September in the year of
Our Lord one thousand eight hundred and eighty three.
TAMES CARTLEDĊE WATERHOUSE.
(L.S.)
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