Year: 1887

page_text: i, HENRY HARBIS LAKE, of the firm of Haseltine, Lake & Co. Patent Agents,
Southampton Buildings, in the County of Middlesex, 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 has for its object to provide means for removing sediment and oil
from feed water supplied to steam boilers, and particularly to the boilers of surface
condensing engines, and in all cases when exhaust steam is used for boiler feeding
purposes.
The oil used to lubricate the cylinder is carried by the exhaust steam into the feed
water and other foreign matter finds its way into the feed water from the same source,
and it is highly desirable to remove such oil and foreign matter before the feed water
enters the boiler.
This invention consists in the improved device hereinafter described, whereby the
oil and other foreign matter may be separated from the feed water while the latter is
on its way to the boiler.
In the accompanying drawing which illustrates a vertical section of an improved
separator.
a represents the nine through which the feed water with whatever oil and other

page_text: foreign matter it may contain, passes on its way to the boiler. The pipe a is
connected to the lower end of the separator, which is composed of an inner tube F,
forming a continuation of the pipe a and an outer casing G, which is separated from the
inner tube F by an annular space S, and is provided above the upper end of said inner
tube with a glass chamber G', forming a transparent chamber or receptacle for oil.
A cap b, secured to the upper end of the casing G, by bolts d, d, closes the upper end
of the glass chamber and has a cock m³, through which air may be permitted to
escape from the glass chamber G¹.
When the cock m' is closed air cannot escape from the glass chamber. It is
desirable to have a confined air space at the top of said chamber, and the cock m¹
permits the air to be released to regulate the depth of said space, which should not
extend below the glass chamber G
The inner tube F has at its upper end a valve h, which is arranged to be lifted
from its seat by the water passing upwardly through said tube, and to be closed upon
its seat and obstruct said tube by pressure in the casing G and glass chamber G. A
set screw i, in a cage or spider, over the valve h, limits the opening movement of
said valve and may be adjusted to vary the extent of said movement.
k
represents a branch from the casing G through which the water passes from the
annular space S to the boiler. Said branch or outlet is considerably higher than the
bottom of said annular space, so that all of said space below the outlet constitutes
a settling basin or pocket in which the heavier foreign matter in the water is
precipitated.
It will be seen that the water forced through the pipe a passes upwardly through
the central tubo F into the oil chamber G³, and from thence downwardly through the
annular space S to the outlet k. The oil contained in the water accumulates in the
glass chamber G¹, where it can be observed and from which it can be drawn off from
time to time through a cock m, at or below said chamber.
The accumulation of sediment in the annular space S below the outlet k may be
blown out from time to time through a cock, n, near the lower portion of said space,
by steam introduced for that purpose through a pipe o, entering the annular space S
near its upper end. The pressure of the steam closes the valve h and so prevents
back pressure in the pipe a.
It will be seen that by this device the oil and sediment may be effectually separated
from feed water while the latter is on its way to the boiler, and without loss
of time.
It is obvious that the separator may be used without the blow off cock n and steam
supply pipe o for separating oil from feed water.
Instead of making the oil receptacle or chamber entirely of glass, it may be made
of metal with a light of glass or a glass gauge tube inserted in one side.
Having now particularly described and ascertained the nature of the said invention,
and in what manner the same is to be performed, as communicated to me by my foreign
correspondent, I declare that what I claim is :-
First. The herein described separator for feed water, consisting of the inner tube
coupled to a supply pipe, and the outor casing communicating at its upper end with
the upper end of the inner tube and having an oil receiving space at its upper end,
a draw off cock communicating with said space, and a feed water outlet below said
cock and below the upper end of the inner tube, as set forth.
Second. The herein described separator for feed water, consisting of the inner tube
coupled to a supply pipe, and the outer casing communicating at its upper end with
the upper end of the inner tube and having an oil receiving space at its upper end, a
draw off cock at or below said space, a feed water outlet below said cock, a blow
off cock below the outlet, and a steam supply pipe above the blow off cock, as
set forth.
Third. In a separator for feed water, the combination of the inner tube having a
valve hat its upper end, and the outer casing, having the steam supply pipe o, the 5
outlet, and the blow off cock n as set forth.

page_text: Fourth. In a separator for feed water, the combination of the inner tube and the
outer casing having the oil chamber, the air cock m¹, the oil draw off cock m, and
the feed water outlet k, all relatively arranged substantially as described.
Fifth. In a separator for feed water, the combination of the inner tube, the outer
casing separated from said tube by an anuular space, the glass receptacle at the upper
end of said casing, the draw off cock m and the feed water outlet & in said casing all
relatively arranged substantially as set forth.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.