Improvements in Air and Gas Compressors.
Year: 1899

page_text: Date of Application, 27th June, 1899
Complete Specification Left, 26th Mar., 1900-Accepted, 28th Apr., 1900
PROVISIONAL SPECIFICATION.
Improvements in Air and Gas Compressors.
We, TAITE, HOWARD & Co., LD., of 63, Queen Victoria Street, in the City of
London, and JOHN ELIOT HOWARD, of the same place, Engineers, do hereby
declare the nature of this invention to be as follows:-
This invention relates to a compressor having a double acting oscillating
cylinder with hollow trunnions which form the inlet and discharge.
The cylinder has double walls with a space between them open at each end.
Two cylindrical valve chambers also open at each end are formed in this space.
The valve chambers communicate respectively with the hollow trunnions and
the two inlet and two outlet valves to the cylinder screw into their open ends.
Both the inner and outer walls of the cylinder are provided with covers having
spaces between them into which the spaces between the walls open the whole
forming a water jacket.
The water enters the jacket at the bottom underneath the discharge valves
and a circulation is induced along the sides where the discharge valves are
located so as to obtain the greatest amount of cooling where most required, the
water is discharged at the top of the jacket close to the suction valves.
As both suction and discharge valves are screwed direct into the valve cham-
bers, in the event of the valves requiring regrinding they can be immediately
withdrawn and substituted by others so that no time is lost in repairing them.
Owing to the fact that the cylinder is an oscillating one the connections to
the water jacket are made with flexible hose.
A great advantage obtained by the above described construction is the easy
way in which it is possible to gain access to any part of the machine, for by
disconnecting the cross head the cylinder can be turned at right angles when
the water jacket covers, valves, cylinder covers and piston can be withdrawn
and replaced.
11.
1
1000

page_text: Improvements in Air and Gas Compressors.
We, TAITE, HOWARD & Co., LD., of 63, Queen Victoria Street, in the City of
London, and JOHN ELIOT HOWARD, of the same place, Engineers, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed to be particularly described and ascertained in and by the following
statement:-
This invention relates to a compressor having a double acting oscillating
cylinder with hollow trunnions which form the inlet and discharge.
The cylinder has double walls with a space between them open at each end.
Two cylindrical valve chambers also open at each end are formed in this space.
The valve chambers communicate respectively with the hollow trunnions and
the two inlet and two outlet valves to the cylinder screw into their open ends.
Both the inner and outer walls of the cylinder are provided with covers having
spaces between them into which the spaces between the walls open the whole
forming a water jacket.
The water enters the jacket at the bottom underneath the discharge valves
and a circulation is induced along the sides where the discharge valves are
located so as to obtain the greatest amount of cooling where most required, the
water is discharged at the top of the jacket close to the suction valves.
As both suction and discharge valves are screwed direct into the valve cham-
bers in the event of the valves requiring regrinding they can be immediately
withdrawn and substituted by others so that no time is lost in repairing them.
Owing to the fact that the cylinder is an oscillating one the connections to
the water jacket are made with flexible hose.
}
A great advantage obtained by the above described construction is the easy
way in which it is possible to gain access to any part of the machine, for by
disconnecting the cross head the cylinder can be turned at right angles when
the water jacket covers, valves, cylinder covers and piston can be withdrawn
and replaced.
Figures 1 and 2 are longitudinal sections (at right angles to each other) of a
compressor constructed according to this invention. In these figures the fram-
ing and many other parts are omitted. Figure 3 is a transverse section of the
cylinder casting through the trunnions and Figures 4 and 5 are longitudinal
sections on the lines 4-4 and 5-5 Figure 3. The lines 1-1 and 2-2 Figure 3
also show the lines on which the sections Figures 1 and 2 are taken.
a is the crank shaft which is driven in any convenient manner. b is the
inner wall and b¹ the outer wall of the oscillating cylinder and cc are its hollow
trunnions., d is the piston and the piston rod. ce are the inlet valves in
casings which screw into the ends of the valve chamber the latter being
connected by the passage e³ to the hollow trunnion c which serves as the inlet.
ff are the outlet valves in casings f¹f which screw into the ends of the valve
chamber the latter being connected by the passage f³ to the hollow trunnion c¹
which serves as the outlet. gg are the inner cylinder covers secured to the
cylinder by bolts g¹ and hh are the outer covers secured by bolts h¹ to the
cylinder and by bolts h to the inner cover. jis the water inlet and kk are
pipes serving as the water outlets leading it from the top of the jacket down
into a pocket (to which the pipes are fixed) formed on the lower outer cover h
from whence it escapes by the outlet m.

page_text: Having now particularly described and ascertained the nature of our saut
invention and in what manner the same is to be performed we declare that what
we claim is:-
1. The combination of the double acting cylinder, the water jacket around
the cylinder, longitudinal valve chambers passing through the water jacket and
valves at the ends of the chambers substantially as described.
2. Air and gas compressors substantially as described and illustrated in the
drawings.
Dated this Fifth day of March 1900.
TAITE HOWARD & Co., LIMITED,
W. K. DAVIS,
Liquidator.
JOHN ELIOT HOWARD.
JOHN ELIOT HOWARD.