Improvements in and Connected with the Valvular Arrangements of Fluid Pressure Engines.
Year: 1888

page_text: 1
Improvements in and Connected with the Valvular Arrangements of
Fluid Pressure Engines.
Wo JOHN CRAVEN of Wakefield in the County of York Engineer and GEORGE
SELLERS of Batley in the County of York aforesaid Consulting Engineer do hereby
declare the nature of the said Invention to be as follows:-
This Invention has for its object to provide simple and efficient valvular arrange-
ments for fluid pressure Engines the valves being of the Corliss type so that in short
stroke Engines but one bored hole is required and in long stroke Engines but two
bored holes are required.
According to this Invention there is bored through the end on each end of the valve
box a hole to receive both the inlet and exhaust valves and in this hole is inserted a
liner with a solid end to divide the inlet passages from the exhaust passages. The inlet
valve is inserted from one end of the bored hole and the exhaust valve from the other
end of the bored hole, so as to respectively control the inlet and exhaust passages
which open from and into the said bored hole and in the case of the inlet valve also
through the sides of the liner. The rotatory movement of the valves will thus open
and close as required the passages for the motive fluid through the valve to the
Cylinder and from the Cylinder to the exhaust.
In long stroke Engines there is a division in the valve box extending from the
valve at one end to that at the other to separate the inlet and exhaust ways.
Dated this 23rd day of May 1888.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London,
Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in and Connected with the Valvular Arrangements of
Fluid Pressure Engines.
We JOHN CHAVEN of Wakefield in the County of York Engineer and GEORGE
SELLERS of Batley in the County of York aforesaid Consulting 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 :-
This Invention lias for its object to provide-simple- and efficient valvular arrange-
ments for fluid pressure engines the valves being of the Corliss type so that in short
stroke or single valve box engines but one plain bored hole is required and in long
stroke or double valve box engines but two plain bored holes are required.
We will describe the Invention with reference to accompanying drawings. Figure 1
being a section through the steam way, Figure 2 a section through the exhaust way,
Figure a section at right angles to Figures 1 and 2, Figure 4 a similar section with
the liner in place and Figures 5 and 6 the exhaust and steam valves respectively.
According to this Invention there is bored through each valve box a plain hole C
to receive both the inlet valve G and exhaust valve й and in this hole C is inserted a
liner D with a solid end to divide the inlet passages E from the exhaust passages F.
The inlet valve G is inserted from one end of the bored hole C and the exhaust valve H
is inserted from the other end of the bored hole C so that the said valves respectively
control the inlet and exhaust passages E and F which open from and into the said
bored hole and in the case of the inlet valve also through the sides of the liner D. The
rotatory movement of the valves will thus open and close as required the passages for
the motive fluid through the valve to the cylinder and from the cylinder to the
exhaust.
In each valve box there is a division B extending from the bored hole C and valves
at one end of the cylinder to those at the other end of the cylinder to separate the inlet
and exhaust ways A A¹.
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
1st. In fluid pressure engines a plain bored hole C with steam and exhaust openings
thereinto so that but one hole is required for short stroke or single valve box engines

page_text: and but two such holes are required for long stroke or double valve box engines
substantially as and for the purposes hereinbefore described.
2nd. In fluid pressure engines a plain bored hole C with steam and exhaust passages
opening thereinto and a solid or closed ended liner D substantially as and for the
purpose hereinbefore described.
3rd. The arrangement and combination of parts constituting the valvular arrange-
ments of fluid pressure engines as hereinbefore described and illustrated in the
accompanying drawings.