Year: 1886

page_text: I, FRIEDRICH OEHLMANN, of Berlin in the Empire of Germany, 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:-
-
The novel features of this invention for the automatic supply of gas to the
motors, consist, firstly, in the arrangement of a double valve by means of which
an automatic supply of gas, to the smallest quantity, takes place, and in the second
place in conducting the gas entering below to the top, from where the float and the
double valve in connection therewith, get depressed, in such a manner, that the
outlet opening is only opened or closed according to requirement.
And in order that my invention may be better understood I have caused to be
appended hereunto one sheet of drawings marked with letters of reference
indicating like parts in the various figures.
Fig. 1. is a vertical section and Fig. 2, a sectional plan of the apparatus.
The apparatus consists of a casing a provided with a channel 6 which latter can
be closed by means of a screwed cap c; the cylinder d, supply pipe e, the double
valve g situated above the valve seat f, the gas supply channel h and the air
pipe r.
Above the cylinder d is employed in a manner well-known the float k, Inside
the float k and connected therewith is arranged the cylinder which on its upper
end is provided with openings v, which conduct the gas over the top of the float k,
into the space m.
If it is not desired to conduct the gas through d. and 1, the outlet openings v of
will be closed, and the gas is then conducted into the space m through h.
The double valve fixed on the lower end of the spindle n consists of the main
valve g formed with inclined sides, inside which & on the same spindle n, a second
valve P, is employed, in such a manner as to regulate an opening formed in the
main valve g and to come only into use, when little gas is required.
The bonnet s employed above the double valve prevents the water which gets
condensed, from entering into the valve and conducts the same along the sides of
the valve into the water pocket t.
The action of this valve when employed for gas engines is as follows:-
After the apparatus has been filled with water or glycerine by means of the
channel b. the float k with its valve a will rise and open the valve seat f

page_text: The gas then flows to the outlet and through the cylinder d and the openings v
of the cylinder 1, or if the openings v are closed and the channel h opened, through
the channel into the space m where it acts from above, depressing onto the
float k and valve g until the valve seat f gets closed by the main valve after which
the small valve p employed in the main valve g opens and finally gets closed
whereby the admittance of gas is cut off tightly.
Before fixing the apparatus and after taking off the screwed cap c, the smallest
consumption of gas required is ascertained by loading the float k in the well known
manner. If more power is required and consequently also more gas, the float k
with its valve g will rise until the required gas has flown in.
But if less power is required the high pressure in the space m will act on the
float as will be well understood and depresses the same with its valve g until
only the amount of gas required will pass the valve seat f.
By a very small consumption of the gas the small valve p will act only as
already described.
Having now particularly described and ascertained the nature of this invention
& in what manner the same is to be performed I declare that what I claim is :-
1st The double valve employed at the lower end of the spindle n consisting of
the main valve g, and within which is arranged a second valve p for the purpose
of permitting the main valve, or only the valve p, to act respectively, according to
the amount of gas required as set forth.
2nd The arrangement of the cylinder d and the cylinder 7, the latter provided
with openings and employed inside the float v, or in substitution of d and I the
employment of the channel h for the purpose of permitting the gas to act from
above on the float k as set forth.
3rd The combination of the double valve g, p. named in claim 1, with the
arrangements of the cylinders d & e or with the channel h named in claim 2, for
the purpose of admitting only the required amount of gas through the valve seat f
& to permit the same to act on the float k from above, as set forth.