Improvements in Pumps.
Year: 1895

page_text: Date of Application, 20th Mar., 1895
Complete Specification Left, 23rd July, 1895-Accepted, 20th Mar., 1896
Improvements in Pumps.
I, JOSEF REISINGER of 3 Holzstrasse, München, Germany, Merchant, do
hereby declare the nature of this invention to be as follows:-
The object of the present invention is a pump in which in one common cylinder
two pistons work, which pistons move regularly to and from each other.
On the accompanying drawing
Fig. 1 is a longitudinal section through the pump axis.
Fig.
2 a cross section on the lines I-II (Fig. 1).
Fig. 3 a view of a detail.
The two pistons E E' operate in the cylinder A closed at each end and having
holes D' D D. The pistons are connected by the joints J J¹ with the shaft F.
The centre joint J is keyed to the shaft F. On this shaft F there is also a
joint G, mounted loosely, and which is also connected with the two pistons E E¹
by the joints Gi G. Whilst the joint connection J J¹ serves, by the oscillating
arrangement of the shaft F, to bring the pistons E E' together and push them
apart respectively, the joint connection G G' has for its purpose only the securer
guiding of the pistons E E'.
Near to the cylinder A are the channels B B₁ having at their ends the
valves C C C³ C³.
The operation of the pump is as follows:
When the pistons E E¹ approach one another, the joints taking up the position
shewn in Fig. 1 in dotted lines, the fluid is sucked up through the holes D¹ D³,
by the opening of the valve C¹.
At the same time the fluid between the pistons E E' is forced through the
opening D³ and valve C, towards the outlet K. When the pistons separate from
each other, the fluid is drawn through the hole D³ into the cylinder A. by the
opening of the valve C3; but at the same time is forced towards the outlet K
through the holes D' D2 by the opening of the valve C¹.
It is evident that the pump may also be constructed with only one piston, serving
thus as a double action pump.
Although the joints J J and G G may also be connected by ordinary bolts,
the connection shewn in Fig. 3 is to be recommended, with which wear and tear
at the place of turning can be readily made good.. On of the joints, in this case J,
carries lateral cones L which revolve in the corresponding conical pans of a
fork M, at the end of the joint J fitting into it. Should the connection be
worn, it is only necessary to draw the fork M somewhat closer together by the
bolt N, or some other arrangement, in order to attain the secure closing of the
cones L and a steady motion.
Dated this 14th day of March 1895.

page_text: Improvements in Pumps.
1, JOSEF REISINGER, of 3 Holzstrasse, München, in the Empire of Germany,
Merchant, 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 object of the present invention is a pump in which, in one arrangement, in
one common cylinder two pistons work, which pistons move regularly to and from
each other.
In the drawings accompanying my Provisional Specification
Fig. 1 is a longitudinal central section through the pump
Fig. 2 a cross section on the lines I-II (Fig. 1) and
Fig. 3 is a view of a detail.
The two pistons E, E¹ operate in the cylinder A closed at each end and having
holes D' D2 D3. The pistons are connected to the shaft F by a lever J and
links J, the lever J being keyed to the shaft. On this shaft there is also a
lever Gmounted loosely thereon and which is also connected with the two pistons E, E¹
by the links G G. Whilst the jointed connection comprising the lever J and
links J serves, by the oscillation of the shaft F to bring the pistons E El together
and push them apart alternately, the jointed connection comprising the lever G
and links G has for its purpose only to assist in guiding the pistons E E..
Outside the cylinder A are two channels B, B the former having at its ends the
valves C2, C3 and the latter the valves C¹, C 4.
The operation of the pump is as follows
When the pistons E E approach each other the levers J and G and links J
and Gassume the position shown in Fig. 1 in dotted lines and the fluid is sucked
into the cylinder A through the holes D' D 2 by the opening of the valve C¹.
At the same time the fluid between the pistons E E' is forced through the
opening D3 and valve C 2 towards the outlet K. When the pistons recede from
each other the fluid is drawn through the hole D3 into the cylinder A by the
opening of the valve C3; and at the same time the fluid previously drawn into
the cylinder through holes D' D2 when the pistons were approaching each other
is forced towards the outlet K through the holes D1 D2 and valve C 4.
It is evident that instead of having two pistons the pump may be provided with
only one, serving then as a double action pump.
Although the levers G and J and their respective links G¹ J' may be connected
together by ordinary bolts, the connection shown in Fig. 3 is to be recommended,
because it provides for the wear and tear at the pivots being readily made good.
Each of the levers G J, (in Fig. 3 it is shown to be the lever J) carries laterally
extending cones or centres L which pivot in the corresponding conical recesses of
a fork M at the end of the link J' connected to it. Should the connection become
worn, it is only necessary to draw the arms of the fork M somewhat closer together
by a bolt N or other device to tighten the pivots L in their bearing recesses.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1. A quadruple-action pump comprising a single cylinder (A) provided with
two pistons (E, E') driven by one and the same shaft (F) and reciprocating
simultaneously in opposite directions therein substantially as described.
2. A pump wherein a rocking shaft (F) is connected by levers and links such
as G, Gi J, J with two pistons (E, E¹) in the cylinder (A) or with only one of
them substantially as described and illustrated in the accompanying drawings.

page_text: 3. In a pump the combination with a pump-cylinder (A) having openings such
as D1, D2, D3 of passages such as B, B' and valves such as C', C2, C3, C4
substantially as described and illustrated in the accompanying drawings.
4. In a pump the combination with a lever (G or J) and a link (G or J') of an
adjustable pivot connection comprising cones or centres such as L a fork M and
means such as a bolt N for adjusting the distance between the arms of the fork
substantially as described.
5. The combination and arrangement of parts constituting the complete pump-
substantially as described and illustrated in the accompanying drawings.
Dated this 23rd day of July 1895.
BOULT & WADE,
Agents for the Applicant.