IMPROVEMENTS IN THE GENERATION AND EMPLOYMENT OF MIXED VAPORS FOR THE PRODUCTION OF MOTIVE POWER, AND IN THE METHOD OF PROTECTING THE INDIARUBBER PACKINGS OF PIPE JOINTS AND CONNECTIONS OF ENGINES WORKED BY SUCH VAPORS
Year: 1880

page_text: PROVISIONAL SPECIFICATION left by Alexander Melville Clark at the Office
of the Commissioners of Patents on the 8th March 1880. A communication
from abroad by Edwin Livingston Brady, of the City, County, and State of
New York, United States of America.
ALEXANDER MELVILLE CLARK, of 53, Chancery Lane, in the County of
Middlesex, Patent Agent. "IMPROVEMENTS IN THE GENERATION AND EMPLOYMENT
OF MIXED VAPORS FOR THE PRODUCTION OF MOTIVE POWER, AND IN THE METHOD
OF PROTECTING THE INDIARUBBER PACKINGS OF PIPE JOINTS AND CONNECTIONS OF
ENGINES WORKED BY SUCH VAPORS," [A communication from abroad by Edwin
Livingston Brady, of the City, County and State of New York, United States of
America.]
This Invention consists, first, in the use of a mixture for actuating and
propelling a piston consisting of a vapor generated from the bisulphide of carbon
and saponified paraffine oil; secondly, in the method hereinafter described for
producing a motor for actuating a piston, viz., forcing, admitting, or injecting
bisulphide of carbon into a boiler containing saponified paraffine oil and water,
which should be first heated to a temperature of from 175° to 200° F.; and thirdly,
in the method of operating a piston as hereinafter described, viz., supplying the
cylinder of the engine with a mixed vapor generated by the action of heat in a
mixture of saponified paraffine oil, water, and bisulphide of carbon.
The apparatus employed comprises a boiler, a surface condenser, a circulating
pump attached to the condenser, a check valve affixed to the boiler, and attached to
the pipe through which the bisulphide of carbon is admitted or injected to the
boiler; an exhaust pipe from the valve-chest- of the engine to the- condenser, a
reservoir at the bottom of the condenser for containing the saponified paraffine oil
and with the bisulphide of carbon, a double acting force pump with valves so arranged
as to lift and force against the boiler pressure and attached to the inlet pipe used
to carry the fluids bisulphide of carbon and saponified paraffine oil from the reservoir
of the condenser to the boiler, and an exhaust pipe connecting the valve chest. of
the engine with the inner surface of the tubes of the condenser, which pipe is to
carry the exhaust vapor (after use in the cylinder) back to the condenser to be
condensed again into liquid, and afterwards transmitted again through the pump to
to the boiler. In all pipes connecting the boiler, engine, reservoirs, pumps, where
flanged joints are used with rubber packing between said joints, the inner edges of

page_text: the rubber must be coated with asphaltum to prevent the rubber from becoming
solvent from the action of the bisulphide of carbon, and no rubber packing must be
used around the piston rods or valve stems for the same reason, neither must any
lubricants of animal, fish, or vegetable oils be used in the cylinder or valve chest
for well understood chemical reasons, but all such lubricants should be saponified
paraffine oils.
The reservoir of the condenser is provided to hold a supply of bisulphide of carbon,
but a space is left above the bisulphide of carbon to hold a packing of water of
several inches, which is interposed as a safeguard against accident from ignition
when the apparatus is in action. The vapor returned from the exhaust pipe of the
engine is condensed in the condenser and falls as a liquid to the reservoir, and the
bisulphide of carbon being of greater gravity than water, sinks to the bottom of
the reservoir, but that portion of the condensed vapor which is due to and has its
origin from the application of heat to the saponified paraffine oil will float on the
top of the water in the reservoir, to be again transmitted to the boiler by a pipe
affixed at a high point in the reservoir for that purpose, and if desired branched in
onto the pipe used to transmit the bisulphide of carbon from the reservoir to the
boiler at a point between the pump and the reservoir.
The saponified paraffine oil in the boiler is used to vaporise more readily the
bisulphide of carbon from its sensibility to heat, and its ability as a vapor mixer to
buoy up and carry with the bisulphide of carbon vapor the vapor of the paraffine
oil, which acts a lubricant to the internal parts of the engine, cylinder, &c., and
prevents the sulphurous deposits from fouling and destroying the surfaces of the
metals, which has heretofore prevented the practical use of the bisulphide of carbon
as a motor by itself, or with water vapor or other ingredients.