Year: 1898

page_text: Date of Application, 8th Feb., 1898-Accepted, 12th Mar., 1898

page_text: upper end of the lower pump tube 2, and is provided with two apertures or
openings 19 and 20. The numeral 21 designates the central or intermediate portion
or section of the partition and the numeral 22 designates the upper section which is
secured to the lower end of the upper pump tube 1. These three sections are
securely bolted, together by bolts 23. The said central section on its underside is
provided with an angular recess or channel 24, forming a water passage. At one end
this passage is formed with an opening or port 25, extending clear through the
section. At the other end the said passage is formed with a port 26, which commu-
nicates at one end with a passage 27, on the upper side of the said section. This
port is closed by an upwardly opening valve 28, and said passage 27 is provided with
a port 19ª, which communicates with the opening or port 19, in the lower section 18.
The lower side of said central section is also formed with a recess or passage 29,
having a port 30, at one end passing through said section. At the other end of this
passage is a port or opening 31, communicating with an angular recess or passage 32.
This port 31 is closed by an upwardly extending valve 34, and at the other end of
said passage 32 is a port or opening 35, closed by a similar valve 36. This latter
port 35, communicates with the opening 20, in the lower section 18.
The upper
section 22, is provided with a port or opening 37, which communicates with the
port 30 of the passage 29, and is also provided with a port 38, which communicates
with port 25, of the angular passage 24. This port 38 is provided with an upwardly.
opening valve 39. The upper and lower pump tubes communicate, respectively, with
the angular passage in the upper and lower sides of the central section of the
partition.
The numeral 40designates a cup-shaped diaphragın, of leather or other flexible material
the edge of which is confined between the edges of the movable cups or sections and
confined at the center between the upper and central section of the partition and has
openings therein corresponding with the openings and passages in the said sections.
A leather washer 41, is interposed between the central and lower sections, also having
openings corresponding with the ports and openings in said sections.
The operation is as follows: The handle and yoke are moved up and down, causing
the connected cups and sections to be reciprocated. On the down stroke of said
cups, the water will be drawn through the lower tube into the angular passage 24,
and from thence through port 26 (valve 28, opening), to the passage 27, and thence
through port 19a, to port 19, into the lower cup 14. During this operation the water
in the upper cup 14, is, forced through ports 37 and 30, to passage 29 to port 31, and
angular passage 32, (valve 34, opening), and from thence through the upper pipe 1
to discharge. Upon the return or upward movement of the said cups, the water in
the lower cup will be forced through port or opening 20, through port 35 (valve 36,
opening), to passage 32, to the upper pump tube 1. At the same time water will be
drawn up into the upper cup 14, through angular passage 24, port 25, and port 38,
the valve 39, opening.
From the above it will be seen that the pump is double acting, the water being
sucked up from the lower pump tube and forced up through the upper tube at each
up and downstroke of the reciprocating cups and sections.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is:-
1. In a diaphragm pump, the combination with the upper and lower stationary
pump tubes, the partition comprising the upper and lower sections secured, respec-
tively, to said pump tubes and the intermediate section connected therewith, and
said sections provided with ports, passages and valves, substantially as described, of
the vertically movable semi-cylindrical cups, through which said pump tubes pass,
provided with angular flanges at their adjoining ends, the flexible diaphragm of
greater diameter than said cups clamped between said flanges and said upper and
intermediate sections, and means for reciprocating said cups on the tubes, substan-
tially as set forth.

page_text: 2. In a diaphragm pump of the character described, the combination with the
upper and lower pump tubes, the vertically reciprocating cups or sections, and the
diaphragm, of the sectional partition comprising the lower section secured to
the lower pump barrel, having two ports or openings 19 and 20 therein, the inter-
mediate section having an angular passage 24, with which the lower pump tube com-
municates, a port 25, a port 26, a passage 27 on its upper side, a port 19
communicating with port 19, a passage 29, port 30, port 31 communicating with an
angular passage 32, in the upper side and the upper section having ports 37 and 38,
and the valves 28, 34, 36 and 39, substantially as described.
Dated this 8th day of February 1898
BOULT & WADE,
Agents for the Applicant.