Year: 1889

page_text: We DONAT BANKI and JOHANN CSONKA both of Budapest in the Kingdom of
Hungary Manufacturers 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 purpose of this invention is to dispense with cog wheel gearing with four measure.
gas and petroleum motors and to better provide for the regulation of the speed, which
permits a more equal motion of the engine than has been the case heretofore with the
known valve motions with two measure gear. The improved valve motion can be
adapted to puppet valves, slides, cocks, clock valves etc. in all cases in which such are,
to be opened once after each two revolutions of the crank shaft.
The invention consists mainly in providing a reciprocating rod to be moved once to
and fro at each revolution of the crank shaft and arranged in such a manner that the,
valve slide etc. is opened at one forward motion but remains untouched at the
subsequent forward motion.
1
"
Reference being made to the accompanying drawings
Fig. 1 is a side elevation of a part of a motor showing partly in section a puppet or
spindle valve with the improved gear for operating it.
Fig. 2 is a cross section on line A B Fig. 1.
Fig. 3 shows the method of connecting the valve spindle to the part G.
Figs. 4, 5 and 6 illustrate certain modifications hereinafter referred to.
}
Two slide pieces G and I as illustrated are placed one above the other, the lower
one G of which is in contact with the valve so that when the piece G is moved
forward, the valve is opened thereby; when the upper piece L is shifted forward, the
valve which is normally held pressed upon its seat by a spring F remains closed since
the action of the sliding piece L has no effect on said valve.
The alternate shifting of the pieces G and I is caused by the vibrating tongue Z
pivoted on bolt B connected with the reciprocating sliding rod R.
The upper slide
piece L has a projecting nose a which, when both parts are in
their extreme backward position or position most distant from the valve, extends
somewhat beyond the lower piece G.
1

page_text: When both pieces are in the position illustrated in Fig 1 the tongue Z lifted during
its motion from the valve by the contact of the lever Z with the adjustable stationary
abutment S, falls during the return motion upon the projecting nose a and presses the
upper piece L forward whilst the lower piece G remains in its previous position.
Now the tongue moves back and leaves the upper piece in the position to which it has
been moved. During the next forward motion, the tongue Z falls upon the end of
the lower piece G, moves the latter, and opens the valve.
During the second backward motion of the tongue Z the spring F closes the valve
and shifts both pieces L and G back into the original position, the upper piece L being
carried along by friction against the lower one.
The necessary friction pressure is caused by the spring r. Upon leaving the piece G
the tongue is lifted by the adjustable pin S since however the point of the tongue now
pushes against the underside of the projecting nose a. It is therefore necessary that
the tongue should yield in a certain measure.
For this purpose either the tongue is made with an outer hinged end Zi with a
spring and butt hinge as in Fig. 1 or the abutment which lifts the tongue is made
elastic as in Figs. 4 and 5.
We prefer to support the parts L and G within a block K which is guided between
shears on a shelf M cast on engine frame.
The movement of the block K is limited by the screw n engaging in a slot therein.
In the socket in the block K slides the part G and above the latter is the part L
sliding only with the block K.
In Fig. 5 the tongue is raised during backward motion by the contact of the slanting
surface Z of the tongue and V₁ of the lever V pivoted on the abutment P, said lever
being held up by spring F.
Fig. 6 shows a modification of the two pieces G and L placed above one another in
which a circular movement replaces the longitudinal sliding movement before
described. The parts L and G are here two sectors pivoted on the same axis, the
sector G being connected by a rod with the valve spindle so as to move the same and
be returned thereby in a similar manner to that described with reference to the
longitudinal sliding parts L, G.
The slide pieces G and I could also be arranged next to one another instead of one
above the other.
Suppose Fig. 1 he a plan view instead of a side elevation, the tongue Z would have.
to vibrato in this case in a horizontal plane which could be done with the assistance of
a spring as a substitute for the action of gravity in the previous case.
A convenient regulating of the speed can be effected with this valve motion if the
exhaust valve is regulated, and the governor also acts upon the tongue Z in such a
manner that upon the speed exceeding the maximum desired, the falling down of the
tongue is prevented. In Fig. 4 the falling down of the tongue is prevented by the
lever E which is connected by a rod T with any suitable governor.
The tongue Z can however regulate by itself. With an increased rapidity of
revolution, the tongue falls notwithstanding that the upper piece L has been shifted
forward not upon the slanted surface of the lower piece G but upon the horizontal
upper surface thereof and does not press open the valve. When however now the
speed is reduced to the normal one after one revolution of the main shaft the valve is
therefore opened with this gear whereas with the two measure gear formerly used this
can only take place after two revolutions. The next explosion therefore takes place
one revolution earlier with this valve motion.
Of course the priming arrangement must be capable of priming at each revolution
when explosive mixture is in the cylinder.
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
In a four measure engine.
14
1. The combination with the inlet valve of a vibrating tongue edented to be moved

page_text: back and forth with each revolution of the crank shaft and to open the said valve at
each alternate movement substantially as set forth.
2. The combination with the inlet valve of a vibrating tongue adapted to be moved
back and forth with each revolution of the crank shaft, two sliding or vibrating
bodies Land G adapted to be alternately moved by said tongue, one of said rods
being connected to the valve substantially as set forth.
3. The combination of the reciprocating and vibrating tongue Z for purpose and
operation as set forth, with a governor adapted to lift same out of action during excessive
speed of the motor.
4. The combination of parts L and G and of the tongue Z and abutment for lifting
said tongue substantially as illustrated and described.
Dated thie 19th day of April 1889
HERBERT & Co.,
18, Buckingham Street, London, W.C.,
Agents to Applicants.