Improvements in or relating to Instantaneous Steam Generators.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in or relating to Instantaneous Steam Generators.
We, WILLIAM SIMPSON, of 8, Minshull Street, Manchester, in the County of
Lancaster, Cotton Manufacturer, WALTER LIGHT BODMAN, of Village View,
Burnage Lane, Didsbury, in the County of Lancaster, Carriage Builder, and
1)ANIEL HARRISON SIMPSON, of One Oak, Cheadle Hulme, in the County of Chester,
Engineer, do hereby declare the nature of our said invention to be as follows:-
These improvements have reference to instantaneous steam generators and to
the water feed control apparatus used therewith, and relate more particularly
to the inventions for which we made application for Letters Patent No. 4485
and 4486 on the 23rd day of February 1898.
Our said improvements consist in the application to the boiler feed water
supply pipe of a non-return or like valve and to the boiler, or a pipe leading
from such boiler, of a safety, or relief valve.
Upon undue pressure of steam in the boiler the safety valve is set to open and
allow the steam to escape whilst the non-return valve is set to close the feed
pipe and prevent the ejectment back of the hot water and steam into the supply
tank, or pumps thereby preventing the entire depletion of the boiler allowing a
reserve of water in the feed pipe and boiler for restarting, and ensuring of more
even and steady working than is possible without such valve.
When the non-return valve is closed, the water from the pump is ejected back
into the supply tank through a suitable relief valve. The safety valve on the
boiler is, by preference connected with the lower parts of the boiler, and, by
preference opens into a pipe leading into the supply tank fitted with a steam
silencer.
The non-return valve is by preference fitted upon the feed pipe at a point
immediately preceding the steam chest, but we do not limit its use to the precise
combination of parts described in our said previous specifications.
Dated this 16th day of December 1898.
WILLIAM SIMPSON,
WALTER LIGHT BODMAN,
DANIEL HARRISON SIMPSON,
By John G. Wilson & Co.,
Agents.

page_text: Improvements in or relating to Instantaneous Steam Generators.
We, WILLIAM SIMPSON, of 8, Minshull Street, in the County of Lancaster,
Cotton Manufacturer, WALTER LIGHT BODMAN, of Village View, Burnage Lane,
Didsbury, in the County of Lancaster, Carriage Builder, and DANIEL HARRISON
SIMPSON, of One Oak, Cheadle Hulme, in the County of Chester, 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:-
These improvements have reference to instantaneous steam generators and to
water feed control apparatus used therewith, and relate more particularly
to the inventions for which we made application for Letters Patent No. 4485
and 4486 on the 23rd day of February 1898. They, our said improvements con-
sist in the application to the feed-water supply pipe of a non-return or like valve,
and to the generator of a relief pipe and safety valve with the end of the said
pipe leading into the feed water supply tank where it is fitted with a steam silencer.
Upon undue pressure of steam in the generator the safety valve is set to open
and allow the steam to escape, whilst the non-return valve is set to close the feed
water pipe and prevent the ejectment back of the hot water and steam into the
supply tank or pumps and thus prevent the entire depletion of the generator,
and by allowing a reserve of water in the feed pipe and generator for restarting
ensure of more even and steady working than is possible without such valve.
When the non-return valve is closed, the water from the pump is ejected back
into the supply tank through a suitable relief valve. The steam valve aforesaid
is, by preference connected with the lower part of the generator.
When used with our said former inventions the non-return valve is, by pre-
ference, fitted upon the feed pipe at a point immediately preceding the steam
chest.
The accompanying sheet of drawings illustrates our invention diagramatically
and as applied to the system of boiler feed described and claimed in our said prior
Specification No. 4485/98.
Upon the feed pipe (A) and, by preference, at a point immediately in front of
the steam chest (B) we introduce a non-return valve (C), which is adapted to
open fully under the force of the water pumped in by pump (D), or (D) in the
absence of excess pressure, or over-generation of steam in the generator (E),
but which valve, when over-generation occurs, is adapted to close and thus prevent
the entire depletion of the generator (which might otherwise occur) and leave
a supply of water in the feed pipe and generator or feed pipe only sufficient for
restarting.
When the feed pipe is closed by the said valve (C) the water from the pump
escapes back into a tank through a pipe (F) fitted with relief valve (G). This
latter may be of the hand operated, weighted or spring loaded type.
To the boiler, or to a steam pipe (H) leading from the lower parts of the gene-
rator we apply a safety valve (I) adapted to allow of the automatic escape of
steam in the event of over pressure, and the end of such pipe we carry into the
feed water supply tank (J), where, below the level of the water we apply a steam
silencer (K), where the noise of the escaping steam is silenced and where such
steam does useful service heating the feed water.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, we declare that
what we claim is:-
1: An instantaneous steam generator (with, or without a steam chest) and
feed-water supply apparatus, a non-return valve for controlling the feed-water

page_text: and adapted to close under the over-generation of steam in the generator, and
a relief pipe and valve for allowing the escape of the feed-water back into the
supply-tank, substantially as herein set forth.
2: An instantaneous steam generator (with, or without a steam chest), and
feed-water supply apparatus, a non-return valve on the feed-water pipe, a safety
valve and pipe leading from the generator into the water supply tank, and
a steam silencer on the end of the pipe, substantially as herein set forth.
Dated this 16th dow of Santamber 1800
WILLIAM SIMPSON,
WALTER LIGHT BODMAN,
DANIEL HARRISON SIMPSON,
By John G. Wilson & Co., Fels. Inst.P.A.,
Agents, Manchester.