IMPROVEMENTS IN OIL GAS ENGINES AND BOILERS, AND APPARATUS CONNECTED THEREWITH.
Year: 1871

page_text: LETTERS PATENT to Peter Salmon, of 5, Mabledon Place, London,
W.C., for the Invention of "IMPROVEMENTS IN OIL GAS ENGINES AND
BOILERS, AND APPARATUS CONNECTED THEREWITH.'
"
Scaled the 12th September 1871, and dated the 16th March 1871.
PROVISIONAL SPECIFICATION left by the said Peter Salmon at the
Office of the Commissioners of Patents, with his Petition, on the
16th March 1871.
I, PETER SALMON, of 5, Mabledon Place, London, W.C., do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN OIL
GAS ENGINES AND BOILERS, AND APPARATUS CONNECTED THEREWITH," to be as
follows:
_
These improvements (relate to oil gas engines and boilers, as describe
in Patent No. 3318, of 1867,) are applicable to locomotive, marine,
portable, stationary, and road engines, in which the superheated steam
in passing through the oil in gas generator forms a combustable gas.

page_text: which is first used as a motive power by its clasticity or expansion, and
after it has so actuated the pistons in cylinders of power engines it is
consumed in the boiler or boilers to raise the steam from the water; and
these improvements consist, in the first place, in working the combustion
of the boilers of these engines under pressure of, say from two to ten
pounds pr. square inch. This is effected by the air (heated preferred)
being forced into the combustion chamber or chambers. by means of a
fan or force pump propelled by a donkey engine, and a damper or regu
lating stop valve being placed or fitted between the superheater and air
heater connected with these boilers and engines; and these improvements
consist, in the second place, in the mode or method of starting or setting
these engines to work, this being effected by simply raising some gas
in the generator by fire heat or flames from gas or oil applied thereto,
the said generated gas then being conveyed by a pipe to donkey engine
and actuating the same in connection with air force pump or fan, and
the exhaust from this donkey engine cylinder being afterwards conveyed
by pipes to and consumed in the combustion chambers of the boilers
to raise the steam from the water, which steam being highly super-
heated is passed through the oil in generator, thus forming a com-
bustable and lubricated gas, which is first conveyed by pipes to cylinders
of engine and after propelling the pistons therein is exhausted into pipe
or pipes and conveyed thereby into the combustion chambers of the
boilers and there consumed under pressure, as above described to main-
tain the steam power in the boilers and superheaters.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Peter Salmon in the Great Seal Patent Office on
the 12th September 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, PETER
SALMON, Engincer, of No. 5, Mabledon Place, Burton Crescent, London,
W.C., in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixteenth day of March, in the year of
our Lord One thousand eight hundred and seventy-one, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Peter Salmon, Her special licence

page_text: that I, the said Peter Salmon, my executors, administrators, and assigns,
or such others as I, the said Peter Salmon, my executors, adminis-
trators, and assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN OIL GAS
ENGINES AND BOILERS, AND APPARATUS CONNECTED THEREWITH," upon the con-
dition (amongst others) that I, the said Peter Salmon, my exccutors
or administrators, by an instrument in writing under my, or their, or
one of their hands and seals, should particularly describe and ascertain
the nature of the said Invention, and in what manner the same was to
be performed, and cause the same to be filed in the Great Scal Patent
Office within six calendar months next and immediately after the date of
the said Letters Patent.
NOW KNOW YE, that I, the said Peter Salmon, do hereby declare
the nature of my said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and
by the following statement:-
My said Invention relates to oil gas engines and boilers as described
in Patent No. 3318 of 1867, in which the superheated steam in passing
through the oil in gas generator forms a lubricated and combustable gas
which is first used as a motive power by its clasticity or expansion, and
after it has so actuated the pistons of cylinders of power engines
it is consumed in the boiler or boilers to raise the steam from the
water.
These improvements, as herein-after described, are applicable to
locomotive, marine, portable, stationary, and road engines and boilers
proper, or those fitted to omnibusses, carriages, and waggons for the
common roads, tramways, and railways, and consists, firstly, in working
the combustion in the chambers of the boilers of these engines under
pressure (of, say, from two to five lbs. per square inch prefered), which
s effected by the air (heated prefered) being forced into the combustion
chambers of the boilers of these engines, by means of a fan or force
pump propelled by donkey engine and of a damper or regulating stop
alve being placed or fitted (between the steam superheater and air
cater prefered); and these improvements consist, secondly, in the mode
r method of starting or setting these oil gas engines to work, which

page_text: Sheet 1st represents a locomotive engine for railways, constructed in
accordance with my Invention. Figure 1 is a longitudinal section view,
and Figure 2 is a horizontal section view thereof. The donkey engine
force pump shewn in this instance in preference to a fan, and marked by
the letter A, connecting pipes B therewith, conveying the air to heater C
and pipes D from heater to combustion chamber of boiler; E repre-
senting the air distribution pipe in the said chamber. The damper or
stop valve F in this case shewn between the steam superheater and air
heater to regulate the pressure of combustion, and the admission air pipe
to force pump or fan may have an car of 10 to 20 inch diameter placed
above the level of the boiler to catch the air when the locomotive is in
motion, and a regulating valve on pipe marked i. A small fire-grate
or flame chamber j under gas generator to generate some gas for starting,
K being the fire or lighting door, and L the funnel or chimney. M is
the steam boiler; N, the steam superheater; O, the gas generator;
P, the water tank; Q, the oil tank; R, the injectors of oil or water in

page_text: conjunction with the pumps. The cylinders of engine may be fitted
outside and a higher level preferred.
The application of these improvements, as before described, and as
illustrated in the Drawings, of a locomotive engine for a railway is
sufficient to illustrate the same applications to marine, portable,
stationary, and road engines proper, but as no examples of them as
applied to omnibusses, carriages, or waggons for the common roads,
tramways, or railways, is shewn in Specification No. 3318 of 1867,
before referred to, now illustrate my complete oil gas engine as applied
to a common road omnibus, and that to a carriage or waggon would be
similar (but in the case of use for tramways or railways, suitable wheels
would be required), all as shewn in Sheet 2. Figure 1 represents a
longitudinal section view of an omnibus suited for the common roads
and Figure 2 is a horizontal section view of the same with my oil gas
engines applied thereto in accordance with my Invention. Donkey
engine air force pump, marked A, also used in this instance in preference
to a fan, connecting pipes therewith B, conveying the air to heater C,
and pipes D from heater to combustion chamber of boiler, E representing
the air distribution rose pipe in the said chamber. The damper or
regulating stop valve F in this case also preferred to be fitted between
the steam superheater and air heater. The admission air pipe with
regulating cock to force pump or fan and ear in connection therewith
placed above omnibus to catch the air is marked i. Steam boiler M;
steam superheater N; gas generator O; water tank P; oil tank Q.
Injectors or pumps and pipes not shewn are used to supply boiler and
gas generator with water and oil respectively. If preferred omnibusses
carriages, and waggons for the common roads, tramways, and railways,
may be constructed with holders or receivers of power (either tubes or
vessels separate, or constituting the flooring, framing, or body of these
vehicles) gas, steam, or air, generated or compressed at fixed stations
on the line of route by my improved boilers, engines, and force pumps,
and supplied to these omnibusses, carriages, and waggons by means of
flexible or jointed piping; and these vehicles propelled by power engines
of two or more cylinders, the pressure of the vapour being reduced or
equalized by a suitable valve in the case of compound engines being
used with steam the condensation would be effected by the water in
tank of road omnibus, carriage, or waggon, or trough on the line of
tramway or railway. The heating power of the lights of these vehicles

page_text: may, in some instances, be applied to expand or superheat the vapor in
the receivers.
Having now particularly described my said Invention, and the
manner in which the same is to be performed, I have to state that I do
not restrict myself to the precise details herein-before described or i
illustrated, but that what I believe to be novel and original, and claim
as my Invention secured to me by the herein-before in part recited
Letters Patent is, viz. :-
1st. The application of a donkey engine in connection with an air fan
or force pump with catching air car pipes, and air heater, to force air
(heated preferred) into the combustion chambers of the boilers of these
oil gas engines, with the regulating valve or damper fitted thereto,
to effect combustion under pressure, as herein-before described and
illustrated.
2nd. In combination with the above the application to the gas 1
generator of these oil gas engines of a small fire-grate or chamber to
give fire heat or flames from gas or oil applied thereto to generate gas
for starting, as herein-before described or illustrated.
3rd. The application of these improvements to locomotive, marine,
portable, stationary, and road engines proper, on my oil gas principle, 2
as well as to engines for omnibusses, carriages, and waggons on the
common roads, tramways, and railways, either complete in these
vehicles or with the power generated or compressed at fixed stations
on the line of route and supplied to these vehicles by flexible or pointed
tubing, all as herein-before described or illustrated.
In witness whereof, I the said Peter Salmon, have hereunto set
my hand and seal, this First day of September, in the year of
our Lord One thousand eight hundred and seventy-onc.
2
FREDERICK ALFRED MESSER, witness,
S, Quality Court, W.C.
PETER SALMON. (L.S.)