Improvements in "Corliss" Valves for Steam Engines.
Year: 1893

page_text: Date of Application, 30th Dec., 1893
Complete Specification Left, 27th Sept., 1894-Accepted. 27th Oct., 1894
PROVISIONAL SPECIFICATION.
Improvements in "Corliss" Valves for Steam Engines.
:
I, FERDINAND BOSSHARDT, of the Firm of F. Bosshardt & Co., of
4, Corporation Street, Manchester, in the County of Lancaster, Patent Agent, do
hereby declare the nature of this invention which has been communicated to me
by Johann Rudolf Frikart, of 24, Karlstrasse, München, in the German Empire,
Engineer, to be as follows:-
This invention relates to improvements in "Corliss" valves for steam engine's
and has for its object to render such valves stronger in construction and more
reliable in action.
To this end I employ at each end of the valve a cap which serves to securely
hold together the sides of the valve adjacent to its cavity which receives the valve
spindle, so as to permit of forming the said cavity deeper without rendering the
valve liable to break and thus guide and actuate the same more accurately.
Inlet valves which must allow of being lifted off the valve seat in order to act as
safety valves I form with a space for play between the said caps and the body of
the valve and in lieu of the flat springs heretofore employed between the valve
spindle and the valve in its cavity spiral springs are employed around studs at each
valve end whereby the valve spindle is completely relieved from lateral pressure
and leakage resulting from twisting is prevented.
In exhaust valves and other valves which need not be capable of lifting the said
springs are dispensed with and the said caps simply secured to the valve body by
means of screws.
Dated this 29th day of December 1893.
F. BOSSHARDT & Co.,
Agents to Applicant.
COMPLETE SPECIFICATION.
Improvements in "Corliss" Valves for Steam Engines.
I, FERDINAND BOSSHARDT, of the Firm of F. Bosshardt & Co. of
4, Corporation Street, Manchester, in the County of Lancaster, Patent Agent, do
hereby declare the nature of this invention which has been communicated to me
by Johann Rudolf Frikart, of 24, Karlstrasse, München, in the German Empire,
Engineer, 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 improvements in "Corliss" valves for steam engines
and has for its object to render such valves stronger in construction and more
reliable in action than heretofore has been the case.
And in order that my invention may be more fully understood I have caused to
be appended hereunto one sheet of drawings marked with letters of reference
indicating like parts in the various figures.
Figs. 1 & 3 are side views and Figs. 2 & 4 end views partly in section of various
forms of "Corliss " valves constructed in accordance with my invention.
In carrying out my invention and referring to Figs. 1 & 2, I employ at each end
of the valve body a, a cap b which serves to securely hold together the sides of the
valve body a adjacent to its cavity a' which receives the valve spindle, so as to
Price 8d 1

page_text: permit of forming the said cavity deeper without rendering the valve body a liable
to break at a² and thus guide and actuate the same more accurately.
Inlet valves which must allow of being lifted off the valve seat in order to act as
safety valves, I form with a space c for play between the caps b and the valve
body a and in lien of the flat springs heretofore employed between the valve
spindle and the valve in its cavity, I employ spiral springs d around studs e at each
valve end whereby the valve spindle is completely relieved from lateral pressure
and leakage resulting from twisting is prevented.
When constructing exhaust valves and other valves which need not be capable
of lifting I dispense with the springs d and secure the caps simply to the valve
body a by means of screws e, as shown in Figs. 3 & 4.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim, is-
In "Corliss" valves for steam engines.
1st. The employment of clamp like caps 6 adapted to secure together the sides of
the valve body, substantially as and for the purpose set forth.
2nd. The employment of springs between the caps band the valve body a, specified
in the preceding claim, adapted to cushion the pressure between the valve body
and its seat without subjecting the spindle to lateral pressure, substantially as and
for the purpose set forth.
Dated this 26th day of September 1894.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.