An Improved Compound for Insulating, Covering, Moulding, and analogous Purposes.
Year: 1891

page_text: Date of Application, 17th Oct., 1891
Complete Specification Left, 17th Aug., 18-2-Accepted, 1st Oct., 1892
PROVISIONAL SPECIFICATION.
An Improved Compound for Insulating, Covering, Moulding, and
analogous Purposes.
I, WILLIAM JOHN BURTON BANKS, of No. 8 Inworth Street Battersea Park
Road, in the County of Surrey, Turner do hereby declare the nature of this invention
to be as follows:-
:-
My invention relates to an improved compound for insulating covering, moulding,
and analogous purposes, the object thereof being the production of a substance or
composition which may be moulded into any desired form under a moderate degree
of pressure and at a low temperature, and which is impermeable to moisture, a
good insulator of high electrical resistance, great strength and may be turned,
shaped, polished, or screwed with ease by any of the known methods.
In carrying my invention into effect I proceed as follows that is to say ;-
I prepare a composition of pulverized slate, soap stone or French chalk, and
mix these ingredients into a stiff paste with a solution of silicate of soda, or silicate
of potassium, and after such admixture the paste is formed, shaped or moulded
under very light pressure. The second part of the process consists in drying the
moulded or shaped compound or substance by the application of a slow heat; such
as that of an oven or drying chamber, and then subjecting it to a bath composed of
a saturated solution of calcium chloride, finally drying again by means of a slow
heat. As an alternative process I may immerse the substance or compound in a
heated bath of any alkaline stearate, and then after partially drying, a second
immersion in a saturated solution of compound sulphate of aluminium and potassium,
and finally drying under a slow heat completes the process and renders the substance
or composition fit for use.
I may, in certain cases, cause the composition or compound, according to my
invention to absorb tar, bitumen, paraffin or the like by immersion after the final
drying process, or by admixture during the first stage of the manufacture thereof,
as hereinbefore described.
Said composition or compound may be made to resemble serpentine, marble, or
slate, and may also be glazed or polished by any of the well known methods for
this purpose.
Dated this 14th day of October 1891
FREDK. WALKER,
11, Furnival Street, Holborn, London, E.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
An Improved Compound for Insulating, Covering, Moulding, and
analogous Purposes.
I WILLIAM JOHN BURTON BANKS of No. 8 Inworth Street 'Battersea Park
Road in the County of Surrey, Turner do hereby declare the nature of this invention
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
My invention consists of an improved compound for insulating covering moulding,
and analogous purposes, the object thereof being the production of a substance
or composition which may be moulded into any desired form under a moderate
degree of pressure, and at a low temperature and which is impermeable to moisture
a good insulator of high electrical resistance, of great strength and may be turned,
shaped polished or screw threaded by any of the known methods.

page_text: In carrying my invention into effect, I proceed as follows, that is to say,-
I prepare a composition of pulverised slate, soap stone, or French chalk, and mix
equal or approximately equal parts of these ingredients into a stiff paste, with a
solution of silicate of soda, or silicate of potassium and after such admixture, the
paste is formed shaped, or moulded under very light pressure. The second part
of the process consists in drying the moulded or shaped compound or substance, by
the application of a slow heat, such as that of an oven, or drying chamber and
then subjecting it to a bath composed of a saturated solution of calcium chloride
finally drying again by means of a slow heat. As an alternative process I may
immerse the substance or compound in a heated bath of any alkaline stearate, and
then after partially drying a second immersion in a saturated solution of compound
Bulphate of aluminium and potassium and finally drying under a slow heat completes
the process, and renders the substance or composition fit for use. I may, in certain
cases, cause the composition or compound, according to my invention, to absorb
tar bitumen paraffin, or the like by immersion after the final drying process, or
by admixture during the first stage of the manufacture thereof, as herein before
described.
Said composition or compound may be made to resemble serpentine marble or
slate, and may also be glazed or polished by any of the well known methods for
this purpose.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, declare that what I
claim is
First. In an improved compound substance, the admixture of slate soap stone or
French chalk with an alkaline silicate solution, substantially as, and for the purposes
herein described.
Second. In an improved compound substance as referred to in the preceding
claim, the drying process and subsequent immersion in calcium chloride solution and
the final drying process substantially as herein described.
Third. In an improved compound substance, as referred to in the preceding
claims, the process of immersion in a heated alkaline stearate bath, and a second
drying process, and a subsequent immersion, in a saturated solution of compound
sulphate of aluminium and potassium by the final drying process substantially as
herein described.
Fourth. In an improved compound substance as referred to, in the preceding
claims, the method of impermeating, indurating or impregnating said compound
substance with bitumenous or like liquids substantially as, and for the purposes
herein described & said forth.
Dated this 15th day of August 1892.
FREDK. WALKER,
11, Furnival Street, Holborn, London, E.C., Agent for the Applicant.