Improved Isolating or Non-conducting Material.
Year: 1894

page_text: Date of Application, 14th June, 1894
Complete Specification Left, 20th Aug., 1894-Accepted, 22nd Sept., 1894
PROVISIONAL SPECIFICATION.
Improved Isolating or Non-conducting Material.
I CHARLES AUGUSTUS PETERS of 68 Queen Street Cheapside in the City of
London Manufacturer do hereby declare the nature of my invention to be as
follows:-
The object of my said invention is to produce an isolating and non-conductive
material that may be advantageously employed for covering steam and water pipes
or for other purposes and which shall whilst being a non-conductor of heat be
impervious to moisture.
"
In producing my improved material I take the now well known "Kieselguhr
or other so-called "infusorial earths" and mix it or them in a dry state with
calcium hydroxide calcium oxide or cement or analogous material also in a dry
state and in proportions to suit the nature of the product desired, the mixture is
then filled into moulds or boxes suited to the size and shape of the articles to be
moulded.
The moulds or boxes are then firmly closed and submitted to the action of
steam or water at high pressure.
I may insert in the moulds or boxes sheets or strips of wire netting or other
netting or fibre so as to form a core or stiffener.
Dated this 14th day of June 1894.
POPPLEWELL & Co.,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improved Isolating or Non-conducting Material.
I CHARLES AUGUSTUS PETERS of 68 Queen Street Cheapside in the City of
London Manufacturer 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:-
The object of my said invention is to produce an isolating and non-conductive
material that may be advantageously employed for covering steam or water pipes
or for other analogous purposes such material whilst being a non-conductor of heat
being also impervious to moisture and my invention relates further to the process
by which such material is formed in the various shapes most suitable for use.
In carrying out my invention I take from 85 to 90 parts of a now well known
natural product called "Kieselguhr" or "Diatomite" which may be obtained in
the Isle of Skye and elsewhere and mix this whilst in a dry state thoroughly with
from 15 to 10 parts of calcium hydroxide, calcium oxide or cement or analogous
material also in a dry state the proportions of 10 to 90 and 15 to 85 being arranged
according to the nature of the desired product.
The dry mixture when thoroughly incorporated is filled into moulds or boxes
suited to the size and shape of the article to be produced such moulds being
capable of retaining the whole of the dry mixture but so constructed as not to be
air or steam tight.
The moulds or boxes are then closed and placed within a cylinder or casing and
subjected to the action of steam and water at high pressure.

page_text: In some cases I may fix in the moulds or boxes pieces of wire or other netting
or fibre or other suitable material so as to form a core or stiffener which becomes
embedded in the pipe covering or other article to be manufactured.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1. The process of mixing so-called "Kieselguhr" or infusorial earths with
calcium hydroxide or analogous material in a dry state, filling said mixture into
moulds and submitting said moulds to the action of high pressure steam and water
as and for the purposes hereinbefore described.
2. The method of manufacturing certain moulded articles such as steam pipe
coverings and the like substantially as described in the foregoing Specification.
Dated this 24th day of August 1894
POPPLEWELL & Co.,
32, Southampton Buildings, London, W.C., Agents.
POPPLEWELL & Co.,
32, Southampton Buildings, London, W.C., Agents.