Improvements in or connected with Apparatus for Heating Buildings or other Places with Steam.
Year: 1893

page_text: Date of Application, 9th Feb., 1893
Complete Specification Left, 17th Aug., 1893-Accepted, 30th Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in or connected with Apparatus for Heating Buildings
or other Places with Steam.
I, ROBERT DAWSON, of Park Hill, Stalybridge, in the County of Chester,
Heating Engineer, do hereby declare the nature of this invention to be as
follows:-
The invention is designed to provide apparatus whereby the water from a steam
heating system is automatically returned to the boiler and by which hammering or
pounding in the pipes will be prevented.
The main supply pipe is connected to one or any number of boilers or steam
generators and from this pipe the steam is conveyed by any number of branch pipes.
to the different parts of the system.
On the main pipe is placed a pressure reducing or controlling valve which
regulates or determines the pressure beyond it in the system.
The return pipes from the different branches connect with a main return pipe or
preferably with a cistern or receiver into which all the water of condensation
flows.
The main return pipe or a pipe leading from the cistern or receiver for the
condensed water connects with a pump governor.
A single connection ouly may be employed between the reservoir or main return
pipe and the pump governor in order to prevent a flow of water through the
governor.
The pump governor is employed to regulate the action of the pump by the water
supply to the same. The pump governor contains a float and is connected with a
steam valve so that as the water rises above a certain level therein the pump is set
in action and the water is forced back to the boiler. A pipe is connected with the
top of the governor which equalizes the pressure therein. The water will by this
arrangement be completely drained from the pipes and none carried backwards to
meet or come in contact with the steam and steam will also be prevented working
backwards into the system and the pounding or hammering in the pipes caused
thereby will be prevented.
The pump supply is also connected with the main water supply which can be
controlled with a boiler governor provided with a float or other means for regulating
the flow into the boiler by causing the valve to open or close as required and
supplying the desired quantity of cold water to the pump.
The boiler governor is operated by means of its connection with the boiler by
two pipes one above and one below one being at about the point at which it is
desired to maintain the water level.
A water gauge glass and pressure gauge may be placed at any convenient
position.
Dated this 8th day of February 1893.
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in or connected with Apparatus for Heating Buildings
or other Places with Steam.
.
I, ROBERT DAWSON, of Park Hill, Stalybridge, in the County of Chester,
Heating 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 :--
The invention is designed to provide apparatus whereby all the water. of
condensation from a steam heating system is whilst hot automatically returned to
the boiler and by which hammering or pounding in the pipes will be prevented.
It consists essentially_in_the_application to or the combination with the steam
heating pipes or system of a receiver into which the condensed water flows from
the steam pipes, a steam pump for forcing the water back again into the boiler and
a pump governor placed and arranged in communication with the water receiver
and the pump by which the action of the pump is automatically controlled and
caused to work as soon as the water reaches a certain level.
It will be fully described with reference to the accompanying drawings.
Fig. 1. Front elevation of the apparatus.
Fig. 2. Sectional elevation of the pump governor.
The main steam supply pipe A is connected to one or any number of boilers or
steam generators B and from this pipe the steam is conveyed by any number of
branch pipes to the different parts of the system in the ordinary way. It is
provided with a pressure reducing valve which regulates or determines the pressure
beyond it in the system.
The return pipes D from the different branches of the system are all connected
with or communicate with a receiver such as E into which all the water of
condensation flows. The receiver is thus charged or filled with hot water. To the
receiver E a second pipe F is connected through which the water after it is:
collected flows or is withdrawn.
The discharge pipe F from the receiver E leads to a pump governor G with
which it is connected at or near the top and the water flows from the receiver E
into the governor G.
The pump governor G is employed to regulate the action of a pump H which
feeds the steam boiler B by the water supply to the same. The pump governor G
contains a float g which rises and falls as the water flows into it from the receiver E
and is then drawn off again by the pump H. The float is connected by the
tumbling lever I and the pivoted lever J with a steam valve K on the pipe k
through which steam is admitted to work the pump H. The pump H is connected
with the governor G by the pipe g' and with the boiler B by the pipe h and the
water is thereby pumped from the governor G into the steam boiler B.
As the water rises above a certain level in the governor G the float 9 is raised
and the steam valve K opened admitting steam to the pump and setting it in action
and the water is forced back to the boiler B. When the water is discharged from
the governor the float falls again closes the steam valve K cuts off the steam supply
to the pump and stops it until the governor is again filled.
The water will by this arrangement be completely drained from the pipes and
none carried backwards to meet or come in contact with the steam and steam
will also be prevented working backwards into the system and the pounding or
hammering in the pipes caused thereby will be prevented.
Where desired the governor G and pump H may also be employed to feed the
boiler with fresh water. For this purpose a water supply pipe L communicates
with the receiver E and when fresh water is to be pumped into the boiler B the
water is allowed to run into the receiver E which is then pumped into the boiler as
already described. The tap M is a blow off tap.

page_text: The boiler may however be fed with fresh water by a separate pump or other
means in which case a boiler governor will also be employed to control the flow.
Such boiler governor will be provided with a float to set it in action when the water
falls below the proper level and will be operated by means of its connection with
the boiler by two pipes one above and one below one being at about the point at
which it is desired to maintain the water level.
A water gauge glass and pressure gauge may be placed at any convenient
position.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In apparatus for heating buildings or other places with steam the combination
with the steam generator and steam pipes of a receiver connected to the return
pipes to collect the water of condensation, the governor G into which the water
flows from the receiver which operates the steam admission valve K and controls
the action of the feed pump and the pump H by which the water is pumped from
the governor as it collects and forced into the boiler substantially as described.
2. The apparatus for heating buildings or other places with steam having the
several parts constructed and arranged in combination substantially as described
and shown.
Dated this 16th dor of Avonst 1893
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.