AN IMPROVED CONDENSER FOR TRAMWAY AND OTHER ENGINES follows:
Year: 1884

page_text: I, CHARLES WETHERELL WARDLE, of the Boyne Engine Works, Hunslet, Leeds,
in the County of York, Engineer, do hereby declare the nature of said invention
for "AN IMPROVED CONDENSER FOR TRAMWAY AND OTHER ENGINES
follows:-
"
to be as
When steam is allowed to escape from the funnels or other parts of tramway or
other engines and to condense in the open air it is productive of inconvenience and
danger arising from the frightening of draught and other animals.
Now my invention has reference to a construction of condenser designed to
obviate these evils.
In
According to my invention, air, to effect or aid in effecting condensation of
exhaust steam is injected by the said exhaust steam into the condensing chamber or
chambers, for which purpose I cause the exhaust steam to pass into the said
chamber or chambers in the form of jets through a series of conical nozzles or
pipes arranged with annular spaces open to the external atmosphere.
connection with each jet-pipe, there is one, or there may be more conical nozzles
or pipes arranged with the larger end towards the jet pipe, but with an annular
space between. Thus each jet of steam enters the open larger end of a nozzle
or pipe, or sucessively the open ends of two or more nozzles or pipes and
induces a current or currents of air to flow into the condensing chamber or
chambera
By the action of the induced currents of cold air and the large surface of the
condensing chamber the steam is condensed, the resulting water is allowed to
escape through a suitable opening or openings, or tap or taps, and any remaining
hot vapour is conducted through suitable connecting tubes between the chamber or
chambers abovenamed and another chamber or chambers of the condenser, either
into the ashpan of the furnace, or into the furnace above the fire, or into the smoke
box, or into the atmosphere in an invisible state.
In order that the condenser may be kept as cool as possible I provide a space
or spaces between the firstnamed chamber or chambers and the secondnamed
chamber or chambers for a continuous current or currents of cold air to pass
through.

page_text: In some cases it may be convenient to cause the exhaust steam to pass in the
form of a thin sheet or stream into the condensing chamber through a passage
or passages of tapering form having the larger open end or ends arranged outward.
The condenser can be placed above the engine or in other suitable position, it
may be upon or form the roof of a car containing an engine, or upon a
separate car.

page_text: I, CHARLES WETHERELL WARDLE, of the Boyne Engine Works, Hunslet, Leeds,
in the County of York, Engineer, do hereby declare the nature of my said invention
for "AN IMPROVED CONDENSER FOR TRAMWAY AND OTHER ENGINES," and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
When steam is allowed to escape from the funnels or other parts of tramway or
other engines and to condense in the open air it is productive of inconvenience and
danger arising from the frightening of draught and other animals.
Now my invention has reference to a construction of condenser designed to
obviate these evils.
According to my invention, air, to effect or aid in effecting condensation of
exhaust steam, is injected by the said exhaust steam into the condensing chamber
or chambers, for which purpose I cause the exhaust steam to pass into the said
chamber or chambers in the form of jets through a series of conical nozzles or pipes
arranged with annular spaces open to the external atmosphere.-In connection
with each jet pipe, there is one or there may be more conical nozzles or pipes
arranged with the larger end towards the jet pipe, but with an annular space
between. Thus each jet of steam enters the open larger end of a nozzle or
pipe, or successively the open ends of two or more nozzles or pipes and induces a
current or currents of air to flow into the condensing chamber or chambers.
By the action of the induced currents of cold air and the large surface of the
condensing chamber or chambers the steam is condensed, the resulting water is
allowed to escape through a suitable opening or openings, or tap or taps and any
remaining hot vapour is conducted through suitable connecting parts or tubes
between the chamber or chambers abovenamed and another chamber or chambers
of the condenser, either into the ashpan of the furnace or into the furnace above
the fire, or into the smoke box, or into the atmosphere in an invisible state.
In order that the condenser may be kept as cool as possible I provide a space or
spaces between the firstnamed chamber or chambers and the secondly named
chamber or chambers for a continuous current or currents of cold air to pass
through or between. In some cases it may be convenient to cause the exhaust
steam to pass in the form of a thin sheet or stream into the condensing chamber
through a passage or passages of tapering form having the larger open end or side
arranged outward, the cross section of such passage or passages being similar to a
longitudinal section of the nozzle or nozzles previously referred to.
The condenser can be placed above the engine or in any other suitable position,
it may be upon or form the roof of a car containing an engine or upon a
separate car.
In the accompanying drawings like numerals represent like parts in the several
views wherein they occur. Fig. 1, is an end elevation partly in section. Fig. 2, is
an elevation looking on the side Y, partly in section, Fig. 3. is a plan, and Fig. 4,
a partial end elevation at X, of a surface condenser according to my invention,-1,
is the exhaust pipe, 2, are the jet pipes for directing the exhaust steam into the

page_text: nozzles 3, leaving an annular space 4, around each jet pipe and the interior of the
said nozzles for induced currents of cold air to enter the first condensing chamber 5,
along with, and so as to act on and condense to a great extent, the steam as it
passes to the said first condensing chamber 5, and thence to the second and
succeeding condensing chambers 6, to 35 respectively, (the number of chambers
being more or less as may be required) and through the pipe 36, either to the
ashpan of the furnace, or into the furnace, or into the smoke box, or to a tank or
into the atmosphere in an invisible state, thus entirely avoiding any inconvenience
to the public or to draught or other animals.-37 to 50, are spaces between the
said condensing chambers, which latter are made of very thin metallic sheets, and
which by preference are corrugated. Currents of air passing through the said
spaces act upon and keep the condensing chambers at such a low temperature as to
enable them to complete the condensation of the steam. Water resulting therefrom
escapes from the chambers through openings or taps (not shewn) provided therefor,
to any convenient receptacle or otherwise, 51, and 52, are the parts or tubes.
connecting the chambers. Figs. 5, and 6, are partial plans in section, to an
enlarged scale, of the second and succeeding condensing chambers shewing the
corrugations.
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
1st Causing exhaust steam to be condensed, to enter a surface condenser in the
form of a jet or jets, or stream or streams substantially in the manner described. so
as to induce a current or currents, or stream or streams of cold air to enter
therewith to assist in condensing such steam as above set forth.
2nd The improved surface condenser constructed, arranged and operating as
described and shewn in the drawings.