Improvements in or connected with the Suction Valves of Compressors and Blowing Engines.
Year: 1892

page_text: Date of Application, 9th Aug., 1892
Complete Specification Left, 28th Apr., 1893-Accepted, 2nd June, 1893
PROVISIONAL SPECIFICATION.
Improvements in or connected with the Suction Valves of
Compressors and Blowing Engines.
I JOSEPH FRANÇOIS of 10 Rue Collard Trouillet, Seraing, in the Kingdom of
Belgium, Mechanical Engineer, do hereby declare the nature of this invention to
be as follows:-
This invention relates to improvements in or connected with the suction valves of
compressors and blowing engines and it has for object a novel mechanism for
nullifying the action of the springs upon the valves of air compressors and blowing
engines during the whole time that suction is taking place.
Instead of, as in my Patent No. 17083 of 1890, utilising the piston rod to bring
about the compression of the springs I use connecting rods and levers governed by
an eccentric driven by the shaft of the fly wheel or the crank of the piston rod of
the compressor, or even, in certain cases, by one of the eccentrics of the steam slide
valves.
On the accompanying drawings:
1
Figure 1 is a longitudinal section through an air compressor; Figure 2 a view of
its right end;
Figure 3 transverse section through the cylinder in front of the suction valves.
Figure 4 gives schematically the arrangement of the connecting rods and levers
which cause the compression of the valve springs during the suction.
A are the guides of the rods N of the valves D: I the valve springs; the
coupling boxes upon which the guides A are fixed; N the valve stems, G is the
dise which serves to compress the valve springs, and which in my Patent No. 17083
of 1890 was carried by the piston rod by means of a brake or of the stuffing box
of this rod. The disc G is placed on the rod S guided in supports S'; the piston
rod passes without friction in a perforation of this disc. A disc G is placed at each
end of the compressor and driven by two levers H keyed on an axle L; these
levers H are jointed to the disc G by means of the rod R.
The axle on the right hand of Fig. 1 is driven by the lever H by means of an
arrangement of jointed rods T, T', Fig. 4, set in motion by the eccentric X of the fly
shaft, or by the piston rod crank, or even by one of the eccentrics of the slide valves.
The lever H, Fig. 2, which forms the extension of one of the levers H on the right,
beyond the axle L, is joined to the lever H³ on the left by a connecting rod T".
This lever H3 forms the extension, beyond the axle L, of one of the levers H on
the left.
The rods T, T¹, T receive, by the eccentric X a reciprocating movement which
causes the levers H to oscillate simultaneously in the same direction.
The eccentric X is so arranged that the levers H on the one side of the air
compressor, cause the corresponding disc G to act at the moment that the piston.
has reached the end of its journey on this side; the springs 1 of the corresponding
valves D are then compressed against the boxes Q and the valves may open
freely.
On the drawing, the piston Fig. 1, is going to the right, the levers H have
pivoted towards the right, the disc G on the left compresses the springs I and the
valves D on this side are open, whereas the disc G on the right does not act on the
springs 1 on this side.
Dated the Ninth day of August 1892.

page_text: COMPLETE SPECIFICATION.
Improvements in or connected with the Suction Valves of
Compressors and Blowing Engines.
I, JOSEPH FRANÇOIS of 10 Rue Collard Trouillet, Seraing, in the Kingdom of
Belgium, Mechanical 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 relates to improvements in or connected with the suction valves of
compressors and blowing engines, and it has for object a novel mechanism for
nullifying the action of the springs upon the valves of air compressors and blowing
engines during the whole time that suction is taking place. Instead of, as in my
Patent No. 17083 of 1890, utilising the piston rod to bring about the compression
of the springs, I use connecting rods and levers governed by an eccentric driven by
the shaft of the fly wheel, or the crank of the piston rod of the compressor, or even,
in certain cases, by oue of the eccentrics of the steam slide-valves.
On the drawings left with the Provisional Specification:
:-
Figure 1, is a longitudinal section through an air compressor; Figure 2 is a view
of its right end;
Figure 3 transverse section through the cylinder in front of the suction valves.
Figure 4 gives schematically the arrangement of the connecting rods and levers
which cause the compression of the valve springs during the suction.
A are the guides of the rods N of the valves D; I the valve springs; Q the
coupling boxes upon which the guides A are fixed; N the valve stems. G is the
disc which serves to compress the valve springs, and which in my Patent No. 17083
of 1890 was carried by the piston rod by means of a brake or of the stuffing box of
this rod. The disc G is placed on the rods S, guided in supports S1; the piston
rod passes without friction in a perforation of this disc. A disc G is placed at each
end of the compressor and driven by two levers H keyed on an axle L; these
levers H are jointed to the disc G by means of the rod R.
The axle L on the right hand of Fig. 1, is driven by the lever H' by means of an
arrangement of jointed rods T, T₁ Fig. 4, set in motion by the eccentric X of the
fly shaft, or by the piston rod crank, or even by one of the eccentrics of the slide
valves.
The lever H, Fig. 2 which forms the extension of one of the levers H on the
right, beyond the axle L is joined to the lever H3 on the left by a connecting rod T'.
This lever H forms the extension, beyond the axle L, of one of the levers H on
the left.
The rods T, T, Ts receive, by the eccentric X, a reciprocating movement which
causes the levers H to oscillate simultaneously in the same direction.
The eccentric X is so arranged that the levers H on the one side of the air
compressor, cause the corresponding disc G to act at the moment that the piston
has reached the end of its journey on this side; the springs I of the corresponding
valves D are then compressed against the boxes and the valves may open
freely.
:
On the drawing, the piston, Fig. 1, is going to the right the levers H have
pivotted towards the right, the disc G on the left compresses the springs I, and the
valves D on this side are open, whereas the disc G on the right does not act on the
springs I on this side.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
A disc G movable on rods S placed at the side of the suction valves in air
compressors and blowing machines, driven by an eccentric of the fly shaft, or by the

page_text: piston rod crank, or even by one of the eccentrics of the slide valves by means of
jointed rods acting on oscillating levers H H³, connected by a rod T' and driving
levers H joined to the disc G by a rod R, for the purpose of abstracting the suction
valves from the action of their springs during the whole time that suction is taking
place.
7
ليوم
1
.
11000
For the Applicant,
W. E. GEDGE,
Agent.