Improvements in Nonconducting Coverings for Boilers, Pipes, and for other purposes.
Year: 1897

page_text: Date of Application, 2nd July, 1897
Complete Specification Left, 21st Feb., 1898-Accepted, 26th Mar.,
1898
PROVISIONAL SPECIFICATION.
Improvements in Nonconducting Coverings for Boilers, Pipes, and
for other purposes.
I, JOHN RUSSELL GREEN, of 16, Providence Street, Ipswich, in the County of
Suffolk, Consulting Engineer, do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in nonconducting coverings for boilers,
pipes, and for other purposes. The object being to produce a light and effective
nonconductor easily applied and removed, that will also allow for the free ex-
pansion and contraction of the metal covered without the breaking of the
joints in the covering thereby allowing the heat to radiate through them.
To produce this covering I take a series of small tubes hermetically sealed at each
end and of a suitable size made of a light uncharable substance preferably
asbestos paper, and lay them on the vessel to be covered either lengthwise or
at right angles alterwards enclosing them in an envelope of suitable form made
of cloth, metal, or other substance or material. The tubes may also be laid on
the envelope at a suitable angle and afterwards wound round the pipe in spiral
form and secured thereto or thereon in any suitable manner. The tubes, before
closing the ends, may be heated in an high temperature to create a partial vacuum
when cold thereby making them more effective as nonconductors.
Dated thin 10+ day of Tul 1007
J. RUSSELL GREEN.
Improvements in Nonconducting Coverings for Boilers, Pipes, and
for other purposes.
I, JOHN RUSSELL GREEN, of 16, Providence Street, Ipswich, in the County of
Suffolk, Consulting Engineer, 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 improvements in nonconducting coverings for boilers,
pipes, and for other purposes, the object being to produce a light and effective
nonconductor easily applied and removed, that will also allow for the free ex-
pansion and contraction of the metal covered without the breaking of the
joints in the covering thereby allowing the heat to radiate through them.
To produce this covering I take a series of small tubes hermatically sealed at each
end and of a suitable size. made of a light uncharable substance preferably
D 877

page_text: asbestos paper, and lay them on the vessel to be covered either lengthwise or
at right angles, afterwards enclosing them in an envelope of a suitable form made
of cloth, metal or other substance or material. The tubes may also be laid on
the envelope at a suitable angle and afterwards wound round the pipe in spiral
form and secured thereto or thereon in any suitable manner.
The tubes before closing the ends may be heated in a high temperature to
create a partial vacuum when cold thereby making them more effective as non-
conductors.
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:
1st. A nonconducting covering for boilers, pipes and for other purposes made
of small tubes hermatically sealed and covered with an envelope of metal, cloth,
or other substance or material substantially as described.
2nd. A nonconducting covering for boilers, pipes and for other purposes made
of small tubes placed on a flexible envelope at a suitable angle and wound round
the pipe in spiral form substantially as described.
3rd. A nonconducting covering for boilers, pipes, and for other purposes,
consisting of vacuum tubes placed in suitable positions and covered with an
envelope of metal, cloth, or other material substantially as described.
Dated this 31st day of January 1898