A Single Acting Gas Motor Engine.
Year: 1890

page_text: Date of Application, 29th Dec., 1890
Complete Specification Left, 20th Aug., 1891-Accepted, 26th Sept., 1891
PROVISIONAL SPECIFICATION.
A Single Acting Gas Motor Engine.
We, HUGO LENTZ, of IV. Favoritenstrasse No. 48, Vienna, Engineer,
FERDINAND CZERMAK, of Annagasse No. 11, Hernals near Vienna, Engineer,
LUDWIG STREITMANN of VII. Mariahilferstrasse No. 88, Vienna, Administrator
of Real Estates, and ARMIN BERGL, of VI. Amerlingasse No., 19, Vienna,
Merchant, all in the Austrian Empire, do hereby declare the nature of this
invention to be as follows:-
This invention relates to a construction of single acting gas motor engine in
which each outstroke is a working stroke, while the engine requires no cooling with
water, so that the engine is specially applicable for small industries.
The said gas motor engine is characterised by a working cylinder which is
connected to a guide cylinder and contains a reciprocating piston connected by an
elastic connecting rod to a crank pin on a disc on the fly wheel shaft, which disc
has its periphery formed as an eccentric or cam.
The cylinder communicates with a separate chamber in which the explosion
takes place, and it is provided with a discharge valve that is opened at the required
intervals of time by means of the before mentioned eccentric or cam disc.
We will describe the construction of the said engine with reference to the
accompanying drawings in which Fig. 1 shews a longitudinal section and Fig. 2 a
cross section of the engine; Fig. 3 shews a modified construction of the gas
inlet valve.
A casing A mounted upon a suitable base has formed in one with it a bearing
for the fly wheel shaft a and a cylinder B which is open at both ends, but is closed
at the outer end by a cover as shewn.
The cylinder B is so arranged as to be as much as possible in contact with the
outer air in order to effect a rapid distribution by radiation of the heat which it
may take up.
With the cylinder B is combined the working cylinder C, the length of which
is equal to the stroke of the piston, and whose inner diameter is slightly less than
that of the guide cylinder B. At the point of connection of the two cylinders is
introduced a ring composed of alternate layers of good and bad conductors of
heat c, d, c, by means of which the transmission of heat from the cylinder C to the
cylinder B is prevented as much as possible. With the working cylinder C is
connected, by means of a passage f, a separate explosion chamber D, into which
the combustible gases, together with the necessary quantity of air, are admitted
through a valve apparatus F, and where such mixture is ignited by a suitable
igniting device E.
The valve apparatus F, as shewn at Fig. 3, has a light air valve g, a double
seated valve i for mixing gas and air, held down by a spring h, and an inlet valve k.
In the construction shewn at Fig. 1, the double seated valve i¹ at the same time
forms the inlet valve.
The igniting device may consist of a gas flame (Bunsen's burner) as shewn on the
drawing, which passes into the chamber D through an igniting passage 1; it may
however also consist of a device for igniting by electricity or by percussion.
The piston G, which is made hollow for more readily keeping the same cool,
which is
works partly in cylinder C and partly in B; it has a separate head m,
connected thereto with an intervening layer n of a bad conductor of heat, so as to
prevent as much as possible the transmission of heat from the cylinder to the
piston G.
To the piston is pivotted a connecting rod H in the looped end of which is

page_text: situated a volute spring O, in order to convert the blow produced by each explosion
into a more or less uniform elastic pressure transmitted to the fly wheel shaft a.
For this purpose the crank pin p on the eccentric or cam dise I of the shaft a is
carried in a block which can slide in the loop of rod H and which is pressed
outwards by the spring O. The disc I effects the opening of the discharge
valve L at the required moment by means of the lever K. M is the fly wheel.
For starting the engine, the igniting device E and the valve apparatus F are
connected to a gas supply pipe; the gas jet issuing at E is ignited, and the gas
supply to F having been opened, the fly wheel M is turned by hand in the direction
of the arrow, until the first explosion takes place. On the rotation of the fly
wheel the piston is moved outwards, thus in the first instance forming a vacuum
in the cylinder C as the valve i Fig. 1 or Fig. 3 is held closed by a spring
until the suction is sufficient to cause the valve to open against the spring. A
supply of gas and air then enter the explosion chamber D, whereupon the valve
will be again closed by the spring h, as the outer pressure upon the valve will be
reduced again.
In consequence of the suction produced in the chamber D, the flame at E will be
drawn into the same and will thereby effect the ignition of the charge, producing
a sudden blow on the piston which is thereby driven outwards. This blow is in the
first instance taken up by the spring O and is transmitted thereby in a more or less
uniformly distributed manner to the crank disc I and fly wheel shaft a, causing the
rotation of these parts. When the piston arrives at the end of its stroke, the
eccentric or cam I in pressing lever K downwards, causes the other end hereof to
open the discharge valve L, so that on the return stroke of the piston the
combustion gases are expelled. At each revolution of the fly wheel shaft the
above described operation is repeated.
By the above described production of a vacuum, and the consequent sudden
admission of the charge of gas and air an intimate admixture of these so as to
produce an effectual explosive mixture is produced in a simple manner.
Dated this 29th day of December 1890.
ABEL & IMRAY,
Agents for the Applicant.
We, HUGO
COMPLETE SPECIFICATION.
A Single Acting Gas Motor Engine.
LENTZ, of IV. Favoritenstrasse No. 48, Vienna, Engineer,
FERDINAND CZERMAK, of Annagasse No. 11, Hernals, near Vienna, Engineer,
LUDWIG STREITMANN, of VII. Mariahilferstrasse No. 88, Vienna, Administrator
of Real Estates, and ARMIN BERGL, of VI. Amerlingasse No. 19, Vienna,
Merchant, all in the Austrian Empire, do hereby declare the nature of this inven-
tion 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 a construction of single acting gas motor engine in
which each outstroke is a working stroke, while the engine requires no cooling
with water, so that the engine is specially applicable for small industries.
The said gas motor engine is characterised by a working cylinder which is
connected to a guide cylinder and contains a reciprocating piston connected by an
elastic connecting rod to a crank pin on a disc on the fly wheel shaft, which disc has
its periphery formed as an eccentric or cam.
The cylinder communicates with a separate chamber in which the explosion
takes place, and it is provided with a discharge valve that is opened at the required
intervals of time by means of the before mentioned eccentric or cam disc.
We will describe the construction of the said engine with reference to the
drawings accompanying our Provisional Specification in which Fig. 1 shews a
longitudinal section and Fig. 2 a cross section of the engine; Fig. 3 shews a
modified construction of the gas inlet valve,
:

page_text: A casing A mounted upon a suitable base has formed in one with it a bearing
for the fly wheel shaft a and a cylinder B which is open at both ends, but is closed
at the outer end by a cover as shewn.
The cylinder B is so arranged as to be as much as possible in contact with the
outer air in order to effect a rapid distribution by radiation of the heat which it
may take up.
With the cylinder B is combined the working cylinder C, the length of which is
equal to the stroke of the piston, and whose inner diameter is slightly less than
that of the guide cylinder B. At the point of connection of the two cylinders is
introduced a ring composed of alternate layers of good and bad conductors of
heat c, d, c, by means of which the transmission of heat from the cylinder C to the
cylinder B is prevented as much as possible. With the working cylinder (is
connected, by means of a passage f, a separate explosion chamber D, into which
the combustible gases, together with the necessary quantity of air, are admitted
through a valve apparatus F, and where such mixture is ignited by a suitable
igniting device E.
The valve apparatus F, as shewn at Fig. 3, has a light air valve g, a double
seated valve i for mixing gas and air, held down by a spring h, and an inlet valve k.
In the construction shewn at Fig. 1, the double seated valve at the same time
forms the inlet valve.
The igniting device may consist of a gas flame (Bunsen's burner) as shewn on
the drawing, which passes into the chamber D through an igniting passage 1; it
may however also consist of a device for igniting by electricity or by percussion.
The piston G, which is made hollow for more readily keeping the same cool, works
partly in cylinder C and partly in B; it has a separate head m, which is connected
thereto with an intervening layer n of a bad conductor of heat, so as to prevent as
much as possible the transmission of heat from the cylinder to the piston G.
To the piston is pivotted a connecting rod H in the looped end of which is
situated a volute spring O, in order to convert the blow produced by each explosion
into a more or less uniform elastic pressure transmitted to the fly wheel shaft a.
For this purpose the crank pin p on the eccentric or cam disc I of the shaft a is
carried in a block which can slide in the loop of rod H. and which is pressed
outwards by the spring O. The disc I effects the opening of the discharge
valve L at the required moment by means of the lever K. M is the fly wheel.
For starting the engine, the igniting device E and the valve apparatus F are
connected to a gas supply pipe; the gas jet issuing at E is ignited, and the gas
supply to F having been opened, the fly wheel M is turned by hand in the direction
of the arrow, until the first explosion takes place. On the rotation of the fly wheel
the piston is moved outwards, thus in the first instance forming a vacuum in the
cylinder C as the valve i, Fig. 1 or ¹ Fig. 3 is held closed by a spring until the
suction is sufficient to cause the valve to open against the spring. A supply of
gas and air then enters the explosion chamber D, whereupon the valve will be
again closed by the spring h, as the outer pressure upon the valve will be reduced
again.
In consequence of the suction produced in the chamber D, the flame at E will be
drawn into the same and will thereby effect the ignition of the charge, producing
a sudden blow on the piston which is thereby driven outwards. This blow is in
the first instance taken up by the spring O and is transmitted thereby in a more or
less uniformly distributed manner to the crank disc I and fly wheel shaft a, causing
the rotation of these parts. When the piston arrives at the end of its stroke, the
eccentric or cam I in pressing lever K downwards, causes the other end hereof to
open the discharge valve L, so that on the return stroke of the piston the
combustion gases are expelled. At each revolution of the fly wheel shaft the
above described operation is repeated.
By the above described production of a vacuum, and the consequent sudden
admission of the charge of gas and air an intimate admixture of these so as to
produce an effectual explosive mixture is produced in a simple manner.

page_text: Having. now particularly described and. ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. A single acting gas motor engine having a guide cylinder B open at both
ends, a working cylinder C combined therewith, and a tubular piston & connected
by a connecting rod with a cam.or eccentric I. which actuates the discharge valve,
the working, cylinder being in communication with a separate explosion chamber D
in which a vacuum is produced by the outward stroke of the piston, thus causing
a mixture of gas and air to enter the said chamber which is then ignited;
substantially as described with reference to the drawings.
2. In a gas motor engine of the kind referred to in the preceding claim, the use
of a spring O in the connecting rod H for the purpose of taking up the blow
exerted on the piston by the explosion and transmitting the same in a uniform.
manner to the engine shaft a, substantially as described.
3. In a gas motor engine of the kind referred to in the first claim, the use of a
gas valve chamber F containing a double beat valve i or which is held closed by
a spring, substantially as described.
4. In a gas motor engine of the kind. referred to in the first claim, the use of
isolating layers c d c composed alternately of bad and good conductors of heat
between the working cylinder C and the guide cylinder B and an isolating layer
between the tubular piston G and its head m, substantially as described.
Dated this 20th day of August-1891..
n
ABEL & IMRAY,
Agents for Applicants.