Improvements in Gas and Petroleum Motors.
Year: 1891

page_text: Date of Application, 24th Aug., 1891
Complete Specification Left, 10th May, 1892-Accepted, 11th June, 1892
PROVISIONAL SPECIFICATION.
Improvements in Gas and Petroleum Motors.
I, CHARLES HUELSER of the firm of Huelser & Co., Temple Chambers, London,
International Patent Agency, do hereby declare the nature of this invention, a
communication to me from abroad by the firm of J. M. Grob & Co., of Leipzig-
Entritzsch, in the Empire of Germany, to be as follows
:-
The object of this invention is an improved link motion for opening the
discharge valve of gas and petroleum motors with four time working. In order to
open the discharge valve in such motors once with each second revolution of the
shaft, generally toothed wheel transmission 1 to 2 is applied in which the pressure
is received during the lifting of the valve by single determined teeth, which wear
more than the rest of the teeth. The present improvement is intended to relieve
the toothed wheels for the greater part of this pressure.
To accomplish the said purpose, the small toothed wheel is connected with an
eccentric and the large toothed wheel with an eccentric or crank. Both eccentric
rods or the rod of the eccentric connected with the small wheel and the link of the
crank are revolubly connected with each other by a pivot which by the revolution
of the two toothed wheels describes a figure so as to alternately occupy a higher
and a lower position.
By connecting with said pivot a rod, the upper end of which is given suitable
guide motion and acts on the discharge valve, this rod at one revolution of the
small toothed wheel is raised, but not sufficiently high to open the discharge valve,
while at the second revolution it is raised to its highest position so as to open the
valve.
Dated this 24th day of August 1901
HUELSER & Co.,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Gas and Petroleum Motors.
I, CHARLES HUELSER, of the firm of Huelser & Co. of Temple Chambers,
London, International Patent and Trade Mark Offices, do hereby declare the
nature of this invention, a communication to me from abroad by the firm of
J. M. Grob & Co. of Entritzsch-Leipzig, Manufacturers, in the Empire of
Germany, and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:-
The subject of this invention is an improved link motion or valve gear for
opening the discharge valve of gas and petroleum engines working in cycles of
4 operations.
In order to open the discharge valve in such engines once at every second
revolution of the shaft, tooth gear with a
1 to 2 is usually employed in
and therefore wear out
unequally. The present improvement is intended to relieve the toothed wheels of
which different teeth are subject to very unequal
a portion of the pressure during the lifting of the valve.
In the annexed drawings
Fig. 1 is a diagram and
Fig. 2a side view of the new device

page_text: connected with an eccentric b, and the larger one c, with an eccentric or with a
crank d.
The eccentric rod of the eccentric and the link e of the crank d are
connected with each other by a pivot g which during the revolution of the two
toothed wheels ac describes a loop or figure xx¹ (Fig. 1) so as to alternately
occupy a higher and a lower positions.
By connecting with said pivot ga rod h, the upper end of which is guided in a
straight or nearly straight line, (for example, by means of a lever m) and acts on
the discharge valve lever f, this rod / during one revolution of the small toothed
wheel, is raised to the point y (Fig. 1), but not sufficiently high, to open the
discharge valve, and during the second revolution it is raised to its highest position,
that is to the point y, so as to open the valve n. On the lever facts on the other
hand a connecting rod i, being part of the governor but forming no part of this
present invention.
By this arrangement the pressure of the spring o of the valve n is caused to act
not upon the teeth of the toothed wheels a and c but, by means of connecting
rod h and eccentric ', on the eccentric b.
Having now particularly described and ascertained and in what manner the
same is to be performed I declare that what I claim is:
In a gas or petroleum engine the combination of the small toothed wheel a
connected with an eccentric and the large toothed wheel c connected with a
crank d, with a link e, a pivot g, an eccentric rod /', a connecting rod h, a valve
lever and a valve n, as and for the purpose set forth.
Dated this 10th day of May 1892.
HUELSER & CO.,
Agents for Applicant.