Year: 1886

page_text: I, HOMAN PRICE FENBY, of 13 Westfield Place, Leeds, in the County of York,
Engineer, do hereby declare the nature of this invention to be as follows:-
My invention has for object the condensation of exhaust steam from tramway
and other engines, and to prevent its escape into the atmosphere in a visible state.
And in order to effect this I cause such steam to pass through an annular space
or spaces within a corrugated pipe or series of pipes, such annular space or spaces
being formed by another pipe or series of pipes passing through the said corrugated
pipe or pipes and attached thereto in such wise that air may or may not pass into
the said annular space or spaces so as to mix with and assist in the condensation
of the exhaust steam.
The internal pipe or pipes may either be plain or corrugated and is or are
provided with a funnel shaped nozzle or nozzles for conducting a current or,
currents of air therein and through the same (which are open at the rear end or
ends) as the engine travels, such nozzle or nozzles pointing in the direction of its
motion. The water resulting from the condensation of the exhaust steam being
allowed to escape from the said annular space or spaces by a suitable outlet or
outlets.
The apparatus may be placed above the engine or in any convenient position.

page_text: COMPLETE SPECIFICATION.
An Improved Surface Condenser for Tramway and other Engines.
I, HOMAN PRICE FENBY, late cf 13 Westfield Place, Leeds, now of Manor House,
Farnley, near Leeds, in the County of York, 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:-
My invention has for object the condensation of exhaust steam from tramway
and other engines and to prevent its escape into the atmosphere in a visible state.
And in order to effect this I cause such steam to pass through an annular space
or spaces within an annular or spirally corrugated pipe or series of pipes, such
annular or spiral space or spaces being formed by another pipe or series of pipes
passing through the said corrugated pipe or pipes and attached thereto in such wise
(as stated in my Provisional Specification), that air may or may not pass into the
said annular space or spaces so as to mix with and assist in the condensation of the
exhaust steam, but I wish it to be understood that I attach no importance to
the air and steam mingling together to help condensation, but prefer that they be
kept apart to the end that no visible vapour may escape into the atmosphere.
The internal pipe or pipes 'may either be plain or corrugated, and is or are
provided with a funnel shaped nozzle or nozzles for conducting a current or
currents of air into and through the same (which are open at the rear end or ends)
as the engine travels, such nozzle or nozzles pointing in the direction of its motion,
and as engines travel to and fro without being turned round; it follows that the
said pipe or pipes must have a funnel shaped nozzle at both ends; the front and
'rear ends thus changing their functions.
The water resulting from the condensation of the exhaust steam is allowed to
escape from the said annular space or spaces by one or more suitable outlets.
The apparatus may be placed above the engine or in any convenient position.
In the annexed drawings are shewn an example of the parts forming a surface
condenser according to my invention, the number of which may be multiplied to
suit the volume of steam to be condensed, which may if desired be caused to pass
first through one or more such annular space or spaces and return through one or
more other space or spaces, and so on through the whole series thereof, until no
visible vapour remains to escape into the atmosphere.
Fig. 1. is a longitudinal sectional elevation, and
Fig. 2. an end elevation of parts shewing the construction of the above described
surface condenser, a, a, is a box or pipe forming an annular receptacle for the
exhaust steam on its eduction from the cylinder or cylinders of the engine, having
suitable branches a¹, in connection with the annular spaces b, b, surrounding the
air pipes o, o, and within the external corrugated pipes d, d. c¹, are the funnel
shaped nozzles at each end of the air pipes c, c, the part a, a, also forms a receptacle
for water resulting from the condensation of the steam, c¹¹, cll, are openings either
of which may be used for admitting the steam while the other is used as an outlet
for the resultant water above referred to.
Arrow e, indicates the direction in which the engine may be supposed to be
running, arows f. f, shew the direction of currents of air through the pipes c, c, and

page_text: arrow c³, the direction of the exhaust steam from the cylinder or cylinders of the
engine, and the arrows g, g, shew its passage through the annular spaces b, b, to
be condensed, the arrow c, shews the escape of the resultant water from such
condensation.
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
1. The arrangement of corrugated piping or pipes having other piping or pipes
(which may or may not be corrugated) within, so as to form annular or spiral
spaces between them in which the steam is condensed, the inner piping or pipes
having open ends to the atmosphere substantially as hereinabove set forth and
illustrated in the accompanying drawings.
2. The general arrangement of condenser with its corrugated outer piping or
pipes and plain or corrugated inner piping or pipes, and funnel or trumpet mouths
for inducing air to enter and pass through the said inner pipes as the engine travels
substantially as hereinabove set forth and shewn in the drawings.