Year: 1888

page_text: I, WILLIAM OLIPHANT, residing at the City of Paterson, in the County of Passaic
and State of New Jersey, one of the United States of America, 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 to combine in one apparatus means for partially
condensing exhaust steam, utilizing the same for imparting heat to feed water, and
filtering said feed water at one operation For these purposes, the apparatus consists
of certain devices whereby the exhaust steam from an engine or like source, is brought
into direct contact with the feed water, and subsequently conveyed to the atmosphere,
or utilized for other heating purposes, whereby back pressure in that portion of the
exhaust steam pipe open to contact with the feed water is relieved at the time of
starting the apparatus into action, a device for cleaning the filter diaphragm by the
mechanical force of live steam when the water is discharged for such purpose, a device
for automatically maintaining the proper supply of water contained in the apparatus
during operation, means for the removal of scum accumulations from the surface of
the heated water, and a device for spraying the feed water into the steam chamber of
the apparatus
In order that others shilled in the art to which my invention appertains may under-
stand and use the same, I will proceed to describe the details of the construction,
explain its operation, and set forth in the appended claims its novel characteristics
Referring to the Drawings
Figure 1, is a longitudinal vertical central section of an apparatus embodying my
invention
Figure 2, a longitudinal vertical central section of a similar apparatus modified in
construction and showing certain additional accessories
Figure 3, a transverse section through the lower part of figure 2, and
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11

page_text: The cylindrical shell, A, figure 1, composed preferably of boiler iron is placed
horizontally upon a suitable support, and within the shell, A, at a considerable distance
below the water line, B, is constructed a horizontal grating or perforated plate, C,
extending the entire length and breadth of said shell, so that water entering at, a, ind
ejected at, b, must pass through said plate or grating Upon this grating is intro-
duced and ovenly distributed through a suitable manhole, c, a supply of pulverized
cohe, charcoal, or other suitable filtering material At the top of the shell near one
end is introduced the steam exhaust pipe, D, which is prolonged downwardly by its
extension, D¹, and thence lengthwise of the shell, and thence upwardly as shown,
opening at its mouth to the extreme top of the steam chamber E, and also having
perforated openings, F, located on the upper side of its section which is lowermost
beneath the water line In addition to the extension, D¹, are connecting supplemental
extensions or relief pipes, G, the one passing beneath the water at any convenient
point above the filtering material, the other passing through that portion of the water
beneath suid filtering material, and both said relief pipes opening near the top
of the steam chamber, F, at, G¹ The openings, G¹, of the relief pipes ire fitted
with valves, H, operated from the outside for closing them when required
At any suitable point on the top of the shell, A, and opening at a level beneath that
of the pipe mouths, D', G¹, G', and above that of the water line, is connected the
eduction steam pipe, I, opening through the sluice or other hand valve, d, and check
valve, e, to the atmosphere or communicating by a branch pipe, I', through the hand
valve, f, to system of heating coils or other means by which it may be desired to
further utilize the exhaust sterm At point beyond the valve, f, I have shown in
the drawing, a connecting steam pipe, J, which may be used for substituting live
steam to supply heating coils or the like, when the valve, f, is closed The pipe, J, 18
provided with an automatic induction valve, g, which is so counterbalanced as to open
and admit steam to the pipe, I' when the latter is free from pressure, and to close
when slight degree of pressure is admitted through the valve, f, from the
heater
The water supply pipe, a, is provided with a cock, h, which is automatically
regulated by the well known float mechanism so as to maintain a proper water
level
In the operation of the apparatus illustrated in figure 1, the valves, H, are first
opened at the time of starting the engine, so as to relievo to a certain extent the back
pressure otherwise produced by the water which will have entered the pipe, D',
through the perfor itions, F The pipes, G, are however, of a sufficiently small size
to cause the incoming exhaust to discharge the water from the pipe, D' and force its
way through the perforations as well as through the mouth of said pipe, whence from
the latter the chamber, E, is charged with steam before the latter escapes from the
apparatus
The valves, H, may now be closed or partly closed causing the bulk of the steam to
pass the perforations, F, in the pipe, D¹, the lower pipe, G, is however left open
preferably, in order to impart additional heat to that portion of the water which has
passed the filtering diaphragm, C
Should the eduction pipe, I, be operating in direct communication with the
atinosphere, the valve d, being open, and, f, closed, the check valve, e, will in case the
engine is stopped, automatically close, whereupon the subsequent condensation of
steam in the chamber, E, will produce a vacuum to be afterwards utilized upon starting
the engine, and aid to withdraw the water accumulated in the pipe, D¹
Referring now to figures 2, 3 and 4, corresponding reference letters indicate parts
corresponding to those already described, and of which, D, D¹, is the exhaust steam
induction pipe, G, the supplemental induction pipe, I, the exhaust steam eduction
pipe, K, the filtering material such as pulverized charcoal, and, C, the perforated filter
diaphragin
"
a, is the feed water pipe from the feed pump, the latter communication at, a¹
and, b, the feed delivery pipe to the boiler The branch pipe, L, having a cock, h, is
designed to ifford direct delivery to the boiler from the pump, but is normally closed

page_text: Circulation thereby takes effect downward from the steam chamber, E, to and through
the filter diaphragm, C, thence to the boiler
M, is a vertical external float chamber, cylindrical in form, having end connections
above and beneath the desired water level as shown The float, N, consisting of solid
light material such as wood or the like, or otherwise consisting of a hollow metallic
vessel, is connected with its piston rod picked through a suitable gland with the valve
lever, 2, of the regulating valve, O, the latter being of any well known type of
construction, which will be balanced and be actuated readily by specific gravity of
the float
The object of this construction of the float mechanism is to obviate the liability of
collapse as in the case of employing the usual hollow metallic ball float under the
pressure which is considerable in the practice of the apparatus, and the object is also
to permit easy access to the float mechanism for the purpose of repairs or for purposes
of adjustment
The interior section, a³, of the feed pipe is extended at considerable length within
the steam chamber, above the water level, and provided with perforations, ), the
terminus of said pipe being closed The incoming feed water is thereby injected in
sprays and more effectually diffused in contact with the exhaust steam than by a
concentrated arrangement of perforations
P, is a scum pan or trough open at the top, having its edges located immediately
below the normal water level and provided with a scum blow-off pipe and cock, 1, so
that the opening of said cock will produce a surface current extending the breadth of
the shell, A, and the pan may be also continued about the sides of the chamber if
desired
The filter cleaning or blow-out pipe, R, is connected preferably to a live steam
source, and extends longitudinally and centrally the length of the diaphragm, C, and
transversely thereto by means of the branches, R¹, better shown in plan view in
figure 4, the whole lying immediately beneath said diaphragm and having perforations
provided on the upper sides, opposite the diaphragm surface The injection of steam
through these perforations will clear the perforations of the diaphragm, and the bed of
filtering material of deposits of sediment at times when the heater is discharged of
water for the purpose of cleaning The steam and deposits are discharged through
the pipe, S, furnished with a suitable cock
my
Having now particularly described and ascertained the nature of said
invention and in what manner the same is to be performed, I declare that what I
claim is
1 In an exhaust steam feed water heating apparatus the combination substantially
as shown, with an exterior shell, of an interior exhaust steam conducting pipe having
perforations at that portion which is immersed beneath the feed water, and having its
ends connected respectively to the exterior source of exhaust steam, and to the interior
steam chamber of said shell, and a separate steam eduction pipe located relatively
thereto as shown
2 In an exhaust steam feed water heating apparatus the combination substantially
as shown with an exterior shell, and interior exhaust steam conducting pipe having
perforations located as shown, of auxiliary relief exhaust steam pipes connected with
said exhaust pipe at its point of entrance to said shell and immersed in the feed water
for the purpose of conducting through the same a portion of said steam, and delivering
the latter to the steam chamber of sud shell
3 In an exhaust steam feed water heating and filtering apparatus, the combination
of an exterior shell comprising a water reservoir and steam chamber, a main steam
exhaust pipe having perforations and steam chamber communication as shown,
auxiliary exhaust steam relief pipes, a separate steam eduction pipe provided with an
atmospheric chech valve, a filtering diaphragm located substantially as shown and
described, and means for automatically supplying feed water above said diaphragm,
and withdrawing the same from beneath said diaphragm

page_text: 4 A feed water beating and filtering vessel constructed with main and exhaust
steam and water chambers having a feed water supply pipe with a regulating cock or
valve, an exhaust steam induction pipe, an exhaust steam eduction pipe, a filter
diaphragm and terminally closed branched and perforated blowing out pipe, the latter
being located beneath said diaphragm and the steam eduction pipe above, substantially
as shown
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