Improvements in Valves for Air and Gas Compressors, Blowing Engines, and the like.
Year: 1899

page_text: Date of Application, 18th Jan., 1899-Accepted, 11th Mar., 1899
COMPLETE SPECIFICATION.
Improvements in Valves for Air and Gas Compressors, Blowing
Engines, and the like.
MICHAEL GARTHORN, of 4, Ivy Terrace, South Moor, near Chester le Street, in
the County of Durham, Mechanical Engineer, and JAMES FAIRLEY, of Shafto
House, Craghead, near Chester le Street, in the County of Durham, Mining
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:
Our invention relates to improvements in valves for air and gas compressors,
blowing engines and the like, having for its object the admission and delivery of
air and gas to and from the cylinders of engines as above-and consists of a
spherical ball or balls, or cylinder or cylinders of any suitable material-but
preferably of hard india rubber-used as suction and delivery valves in the covers
at each end of the compressing cylinders of engines as named above.
The ball or balls, or cylinder or cylinders-as may be found necessary for the
admission and delivery of air or gas-are arranged as valves to open and close
circular or oblong openings in the covers of the cylinders as above.
These balls or cylinders being acted upon by the motion of the piston, or
compressed air or gas roll up and down inclined grooves or planes, or along
horizontal grooves or planes from and to the faces of the openings and open and
close the suction and delivery openings with the movement to and fro of the
piston, for the admission and delivery of air or gas to and from the compressing
cylinders.
Referring to the drawings, and to describe the working of the valves, A is the
suction and A' the delivery valves, B the suction and the delivery openings,
I and I¹ the inclined or horizontal grooves or planes, P the piston, P the piston
rod, C the compressing cylinder, C₁ the cover, C the valve covers, D the delivery
pipe and S stop pieces. Small arrows direction of suction and delivery air or gas.
When the piston moves in the direction of the large arrow, the suction valves A
are drawn up the incline I against the stop pieces S, and admit air or gas to the
compressing cylinder C; while the delivery valves A roll down the incline 1' and
close the openings B' against the air or gas already delivered into the pipe D.
suction valves in the cover at the opposite end of the cylinder are now closed,
permitting the air or gas being compressed by the approaching piston, forcing the
delivery valves from the faces of the openings and allowing the compressed air or
gas to pass thro' into the delivery pipe-and so on at each stroke.
Tic
DESCRIPTION OF DRAWINGS.
The
1 Is a vertical longitudinal section thro' the centre of one

page_text: No. 2 sheet, Fig. 3. Is a vertical longitudinal section thro' the centre of one
end of a compressing cylinder and cover, showing cylindrical shaped valves in
normal or resting position.
No. 2 sheet, Fig. 4. Is an end elevation of the above, showing valves openings
and delivery pipe.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
"
The construction of valves in the covers of cylinders for air and gas compressors,
blowing engines and the like, of spherical or cylindrical shape, of any suitable
material but preferably of hard india rubber-which open and close the suction
and delivery openings by rolling up and gravitating down inclined grooves or
planes, or rolling to and fro along horizontal grooves or planes-at the extreme
ends of the piston's stroke, and thus allow the admission and delivery and prevent
the escape of air or gas substantially as described above, and shown on the
drawings deposited herewith.
M. GARTHORN.
JAMES FAIRLEY.