A New Material for the Manufacture of Electric Conduits.
Year: 1897

page_text: Date of Application, 12th Aug., 1897
Complete Specification Left, 11th May, 1898-Accepted, 11th June, 1898
PROVISIONAL SPECIFICATION.
A New Material for the Manufacture of Electric Conduits.
We, CHARLES HANNAY and PATRICK JOHN THOм, both Directors of the Caribbee
Manufacturing Coy. Ltd., 4, York Street, Glasgow, N.B., Carib Silicate
Manufacturers, 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 :-
This invention relates to a new material for the manufacture of electric conduits.
It consists of a combination of diatomaceous earth and natural asphalt. By the
use of the said material, conduits may be made practically air tight and are damp
proof.
The conduits may be made by moulding or pressing the said material into the
required shape and afterwards fired; or the conduit may be made of the
diatomaceous earth and fired and afterwards dipped into or impregnated with
asphalt or equivalent damp proof material.
Dated this 10th day of August 1897.
JOHNSONS,
Petitioners' Agents, 115, St. Vincent Street, Glasgow.
A New Material for the Manufacture of Electric Conduits.
We, CHARLES HANNAY and PATRICK JOHN THOм, both Directors of the Caribbee
Manufacturing Coy. Ltd., 4, York Street, Glasgow, N.B., Carib Silicate
Manufacturers, 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 :-
This invention relates to a new material for the manufacture of electric conduits.
It consists of a combination of mineral diatomaceous earth and natural asphalt
or other similar material. The said earth used is known as Barbadoes earth which
is found in the Island of Barbadoes or other West Indian Islands.
In the manufacture of the conduit, it is first moulded from a mixture of the said
earth, along with paper or other pulp in the proportion of say 1 to 25% of pulp. It
is then fired and the pulp thereby being burnt out, leaving the conduit porous
and capable of being impregnated with a solution of the asphalt or other similar
material.
By the use of the said material, the conduits are made practically air tight and
damp proof and are also effective insulators.

page_text: The drawing illustrates in section a conduit made of the said material, of which A
is the body of the conduit with cover B which may be made of the same material.
The insulator supports C may be moulded along with the rest of the conduits or
they may be formed and fitted separately. The sections of the conduit may be
joined in any suitable manner such as by flanges or sockets.
In lieu of the mineral diatomaceous earth referred to, we may employ the earth
known as diatomite found in Germany and in this country.
Having now particularly described and ascertained the nature of our said inven-
tions, and in what manner the same is to be performed, we declare that what we
claim is :-
The new material for the manufacture of electric conduits, as hereinbefore
described.
Dated this 30th day of April 1898.