Year: 1889

page_text: A communication from THOMAS ROBERTS, residing at Baltimore city, in the county
of Baltimore, and State of Maryland, United States of America, Engineer.
I, ALFRED JULIUS BOULT of 323 High Holborn in the county of Middlesex,
M.I.M.E. 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 relates to improvements in street and other locomotives, traction and
dummy engines and the object of the invention is to produce a street locomotive or
engine, that is noiseless and smokeless; also to lead the exhaust steam into a
condenser in a noiseless manner; also to place the operating engines under the floor
in a casing with doors; furthermore to produce a very simple condenser ; and finally
to facilitate the travel of street locomotives on ordinary streets and roads without
danger to persons or animals.
With these objects in view the invention consists in the construction of certain
details and arrangement of parts, as will be more fully described hereinafter,
reference being had to the accompanying drawings, and the letters thereon.
Like letters indicate similar parts in the different figures of the drawing,
in which
Fig. 1 represents a vertical longitudinal section of this improved locomotive partly
in elevation.
Fig. 2 is a horizontal cross section of the same on line x x.
Fig. 3 is a vertical section partly in elevation.
Figs. 4 and 5 are modified forms of the condenser in the locomotive.
In the drawings A represents a street locomotive adapted for elevated or ordinary
railways and with suitable changes can be used as a traction, portable or other engines.
The engines B are placed under the floor of the locomotive and enclosed in a casing C
having hinged doors c in its sides or ends serves to gain access to said engines for
repairs etc.

page_text: The boiler D, the hydrocarbon generator E, condenser H, water tanks F and con-
necting pipes are arranged above the floor. The boiler D of the vertical kind,
having tubes or flues, is provided with a super-heating device placed in the furnace.
The steam is conveyed into the superheater d by a pipe d'. The generator E consists
of a shell in which is placed a casing e containing tubes and having a top and
bottom. The top has a safety valve band the bottom is connected by a pipe a to
the superheater and conveys the superheated steam into the generator. The steam
passes through the tubes and the perforations el in the diaphragm e" into the head
of the generator, thence down and surrounds the inner casing. The liquid carbon
or equivalent is conveyed into the inner shell and among the tubes. The carbon
vapours pass the perforations e¹ and holes e in the diaphragın, and mingle with the
superheated steam. A non-conducting covering may be placed around the generator.
The upper tube sheet is secured to the diaphragm by bolts or tubes e. A branch
pipe a connects with pipe a to convey steam into the space around the shell, to
prevent condensation of vapors. In the upper part is arranged a perforated outlet
pipe f, which conveys the hydrocarbon vapors to the burners 9 serves to generate the
steam. Suitable valves in the pipes regulate them.
A tank F is arranged on each side, and a pump G serves to fill it; and an injector
forces the water into the boiler. Any condensed water also passes into the tank.
One or more generators may be employed as desired.
The condenser H placed on the side and of rectangular or other shape, is provided
with perforated plates made of wood, or other material, and made removable and
supported in grooves h. The exhaust steam is conducted by pipe i into a perforated
pipe and distributed, thus preventing noise by exhausting. A tank 1 for the in-
jection water is placed under the roof. The generator tubes are secured at their
lower ends and free at their upper for expanding and contracting. The plates may
be placed horizontally instead of inclined as shown.
In the modification shown in figure 4, the condenser consists of a rectangular
shell K with tubes through it for the air and between said tubes are placed plates
arranged on the opposite sides, to form a zig-zag course. A fan Lis placed on the
top of the car and operated by the motion of the car, or mechanically, either to
exhaust or force the air through the condenser, to condense the steam. The
roof is made hollow and air tubes m extend through it and the condensed
water passes through conduits n in the feed tank. On top of the roof are also
placed two or more hoods M filled with sponge etc. to disseminate the exhaust steam,
not condensed, and thus prevents noise. The operation will be readily comprehended
without further elucidation here.
Among the advantages may be mentioned that it is smokeless there being no fuel
to create it; it is noiseless as the exhaust steam is muffled; the operating engines
are out of sight and yet accessible; the steam, being condensed, serves as feed
water; accidents are prevented to persons and horses, as these are not frightened and
will not run away.
Having now particularly described and ascertained the nature of the said inven-
tion, 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 ;-
1. In locomotives a hydro-carbon generator having tubes fixed at one end and
free to expand at the other and arranged to, mix superheated steam and carbon
vapors as specified.
2. In a street locomotive the condenser placed on the sides of the locomotive and
provided with removable perforated plates or with tubes arranged to condense the
exhaust steam in a noiseless manner as set forth.
superheating device con-
3. In locomotives the combination of a boiler having a
nected to a hydro-carbon generator with one or more condensers and a perforated
inlet-pipe for the exhaust steam arranged as specified.
4. In a locomotive the boiler having a superheating device connected to a hydro
carbon generator with the inclined engines the condensers having plates or tubes as

page_text: shown a perforated inlet-pipe for the exhaust steam and a water-tank under the roof
all as set forth.
5. In a street locomotive a boiler having a super-heating device and connected
to the hydro-carbon generator and burners with the engines and condensers having
removable partitions or tubes and a perforated inlet pipe for the exhaust steam to
produce a smokeless and noiseless locomotive.
6. A boiler having a super-heating device a hydro-carbon generator and burners
a pair of engines arranged under the floor enclosed in a casing and condensers a
perforated exhaust inlet pipe a pump and tank under the roof as shown.
7. The combination of a boiler having a superheating device d a generator E
hydro-carbon burners said generator consisting of an outer and inner casing with
tubes and upper and lower heads a perforated outlet pipe for mixing the vapors with
the superheated steam and a pair of engines arranged under the floor as shown and
specified.
8. In street locomotives the combination of the condensers having tubes for air
and plates between them, one or more fans on the roof and one or more mufflers
with a tank for condensed water a pair of engines arranged under the floor and a
pump.
9. The street locomotive described consisting of the frame the boiler D with
superheating device d hydro-carbon generator and burners a perforated outlet pipe f
for the vapors the condensers tank I pump G feed water tanks F and engines enclosed
in a casing Call arranged as specified.
10. The combination in a street locomotive of a pair of inclined engines arranged
under the floor and enclosed in a casing as shown with the condensers provided with
plates or tubes a perforated inlet pipe and a generator and a boiler all as and for
the purpose set forth.
L 11