An Improved Rotary Pump.
Year: 1895

page_text: Date of Application, 10th Dec., 1895-Accepted, 18th Jan., 1896
COME DEIM DUMOITTUATION.
An Improved Rotary Pump.
I, IVAN ARTEMKIN, of House Morel Bolschaia Lubianka Moscow, in the
Empire of Russia, Manufacturer 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 :-
The present invention relates to a pump with rotary plunger of wedge-shaped'
longitudinal section. The plunger rotates in a corresponding frame and exercises:
in consequence of its wedge-shaped form alternately suction and propulsion. The
details of the invention are clearly shown in the accompanying drawings in.
which
Figure 1 shows the pump in vertical section.
Figure 2 is a front elevation.
Figure 3 shows the pump with the cover removed.
Figure 4 shows the wedge-shaped plunger in side elevation.
Figures 5, 6, 7 and 8 show various details of the mechanism.
The casing consists of the two parts g and e. In the same the plunger o is revolved
by means of the shaft s. Between the two parts g and e is placed a loose plate o,
to a pivot on which there is secured a wing flap d. The plate c and the flap d
serve on the one hand to separate the two chambers A and B formed by the
divisions g and e from one another and on the other hand to close the openings y and z
formed in the inclined surface of the plunger.
The plunger o is hollow and is divided into two parts by means of the division i.
Upon the vertical side of the plunger are formed the openings r and ".
Each half
of the plunger has therefore an opening to both sides. The casing e g is closed by
means of the cover with the channels p and q. The latter serve to connect the
openings and u of the plunger with the openings m and n. The flap d affixed to
the plate c applies itself corresponding to the revolution of the plunger o to the
inclined surface of the latter.
The casing formed of the two parts e and g has such a form that the plunger can.
freely rotate therein.
The operation of the pump is as follows:-
If the plunger o rotates in the direction of the arrow from the position shown in
Figure 1, the openings y and pass from under the flap d, y being then towards the
space B and z being towards the space A. After a half turn the thick end of the.
plunger is in the space A and the thin end in the space B. On this motion the fluid
or gases are drawn into the space B through the openings and y and at the same.
time the fluid or gas previously present in the space A is pressed out from the
space A through the openings u and <. After half a revolution the openings y and z
are again closed by the flap d. On further turning the openings y and z again pass.
from under the flap d, but now y is against the space A, and z against the space B.
Consequently the liquid or gas will now be drawn into the space A and expelled
from the space B until the revolving plunger has completed a full revolution and
returned to the position shown in Figures 1 and 3. As the fluid or gas is
constantly drawn in by the chamber in which the thin part of the revolving plunger
is placed the same action is twice repeated at each complete revolution. The
pumps may also be provided with valves in which case the described openings ur-
y and and the channels p and q are no longer necessary. The channels and
instead of being placed in the cover may also be arranged in the revolving
UJI

page_text: plunger or in the casing without thereby departing from the principle of the
invention. The pump of my invention I prefer to designate by the name of
Disolin.
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 :-
:-
1. A rotary pump characterised by having a circular wedge-shaped plunger o
revolving in a corresponding casing e g and effecting by means of its thin part the
suction of liquid or gas from the suction pipe and by means of its thick part the
pressing of the same into the delivery pipe.
2. In the mechanism set forth in Claim 1 the arrangement of the openings y z
in the revolving plunger which by means of a plate e dividing the two
spaces A and B of the casing and bearing a movable flap are alternately closed
and released.
3. In apparatus as described in Claim 1 the arrangement of openings ruin the
revolving plunger and of channels p 9 in the cover f corresponding to the openings
of the suction pipe and of the delivery pipe and permitting the passage of the fluid
or gas.
ux
OCOT qu
W. P. THOMPSON & Co.,
31, High Holborn, London, W.C., Patent Agents for the Applicant.