Improved Apparatus for Extracting Water from Steam Pipes and Returning the same to the Boiler.
Year: 1886

page_text: Date of Application, 6th Dec., 1886.
Complete Left, 3rd Sept., 1887.
Complete Accepted, 4th Oct., 1887
PROVISIONAL SPECIFICATION.
Improved Apparatus for Extracting Water from Steam Pipes
and Returning the same to the Boiler.
I MOSES DICKINSON of No. 23 Barlow Street Oldham in the County of Lancaster
Engineer do hereby declare the nature of this invention to be as follows:-
The object of this invention is principally to extract the water from the steam
pipes employed for conveying steam from the boiler where it is generated to the
engine wherein it is employed, but the invention is also applicable for extracting water
from steam pipes used for heating buildings.
To the lower side of the main steam pipe I connect a vertical pipe or receiver for
the water which condenses in the main pipe. From the lower part of this receiver
at a point below the water level I carry a pipe which passes into the boiler and
terminates some distance below the water line.
This pipe is provided outside the boiler with a valve which opens only in the
direction to allow the water from the receiver to flow back again into the boiler which
as it accumulates it will do by its own gravity, as the water is almost in a state of
equilibrium, the pressure in the steam pipe being the same as that in the boiler, and
as soon as the weight of the water becomes sufficient to lift the valve, it does so and
flows back into the boiler. The water extractor should be placed as near to the stop
valve of the engine as practicable so as not to allow any water to pass into the
cylinders, and where the distance between the boiler and the engine is considerable,
more than one extractor may be employed.
And in cases where the steam is liable to carry along with it a considerable portion
of water I make an enlargement in the main steam pipe at that part where the water
extractor is applied and I place in this enlargement a series of inclined battle plates
leaving an open space above and below the plates at least equal in area to the main
pipe. The water carried by the steam will be arrested by these plates and directed
towards the extractor which will return the same into the boiler.
Dated this 4th day of December 1886.
GEORGE DAVIES,
4, St. Ann's Square, Manchester,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improved Apparatus for Extracting Water from Steam Pipes
and Returning the same to the Boiler.
I MOSES DICKINSON of 23 Barlow Street Oldham in the County of Lancaster
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 object of this invention is principally to extract the water from the steam
pipes employed for conveying steam from the boiler where it is generated to the
engine wherein it is employed, but the invention is also applicable for extracting
water from steam pipes used for heating buildings.
The nature of iny said invention and the manner in which the same is to be
performed or carried into practical effect will be readily understood on reference to
the annexed sheet of drawings and the following explanation thereof.
Fig. 1. is a general elevation showing the application of my invention to the main
steam pipe of a series of three boilers.
Fig. 2. is a section (on a larger scale) of the apparatus which I employ for arresting
the water produced by the "priming" of the boiler, and Fig. 3. is a section of the
form of back pressure valve (applicable also as a stop valve) which I prefer to employ
in connection with my improved apparatus.
To the lower side of the main steam pipe a, a of the boilers b, b I connect a vertical
pipe or receiver c, c for the water which condenses in the main pipe a, a. From the
lower part of this receiver c, c at a point below the water level I carry a pipe d, d
which passes into the boiler b, band terminates some distance below the water line.
This pipe d d is provided outside the boilers b, b with back pressure valves e, e (see
enlarged section Fig. 3.) which open only in the direction to allow the water from the
receiver c, c to flow back again into the boilers b, b which, as it accumulates, it will do
by its own gravity, as the water is almost in a state of equilibrium, the pressure in the
main steam pipe a, a being the same as that in the boiler b, b; and soon as the weight
of the water becomes sufficient to lift the valve e, e it does so and flows back into the
boilers b, b. The water extractor should be placed as near to the stop valve f, f of the
engine as practicable so as not to allow any water to pass into the cylinders 9, 9 and
when the distance between the boilers 6, b and the engine is considerable, more than
one extractor c, c may be employed. h, h is a pipe for collecting water, from the
steam jacket of the cylinder g, 9 and from the stop valve f, fand delivering it to the
receiver c, c.
In cases where the steam is liable to carry along with it a considerable portion of
water I make an enlargement i, i in the main steam pipe (see dotted lines Fig. 1. and
enlarged section Fig. 2) at that part where the water extractor c, c is applied and
I place in this enlargement a series of inclined baffle plates k, k leaving an open space
above and below the plates at least equal in area to the main pipe a, a.
The water

page_text: carried by the steam will be arrested by these plates k, k and directed towards the
extractor c, c which will return the same into the boilers b, by means of the
pipe d, d.
This improved apparatus is also applicable to steam pipes used for bleaching, dyeing
and printing and other purposes where the pipes can have the full boiler pressure and
a little vertical height above the water line of the boiler; this will give pure dry
steam instead of steam contaminated with dirty water.
The back pressure valves act automatically and (when there is more than one boiler)
will return the water from the main steam pipe into that boiler which has its water
line the lowest.
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 :-
The improved apparatus consisting of a water receiver leading from the bottom
of the main steam pipe and provided at or near its lower end with a return pipe
leading into the boiler (or boilers) and fitted with a back pressure valve (or valves)
and either with or without collecting pipes leading from the steam jacket of the
engine cylinder and the stop valve, substantially as and for the purposes hereinbefore
particularly set forth and described and illustrated by the drawings annexed.
הזיז
1000
GEORGE DAVIES,
4, St. Ann's Square, Manchester,
Agent for the Applicant.