IMPROVEMENTS IN PUMPS
Year: 1877

page_text: LETTERS PATENT to Albert Franklin Eells and Samuel Cutter Loud, both of
the City of Boston, County of Suffolk, State of Massachusetts, one of the
United States of America, for the Invention of "IMPROVEMENTS IN PUMPS."
LOTT
.
--་་
A
COMPLETE SPECIFICATION filed by the said Albert Franklin Eells and
Samuel Cutter Loud at the Office of the Commissioners of Patents on the
11th June 1877.
ALBERT FRANKLIN EELIS and SAMUEL CUTTER LOUD, both of the City of Boston,
County of Suffolk, State. of Massachusetts, one of the United States of America.
"IMPROVEMENTS IN PUMPS."
Our Invention relates to the peculiar construction of pumps, and consists in the
arrangement of a diaphragm chamber placed at the side of the uptake, and of valves
in the upper part, of the uptake, which, acting in connection with the said diaphragm
chamber, constitutes a pump which has a straight uptake, having no obstructions
in it except two puppet valves, which are placed at the extreme upper end, and are
so accessible as to be removed at any time by the hand alone, thus leaving the
uptake free to be cleansed or used as a sounding well.
GENERAL DESCRIPTION.
The uptake pipe B terminates in a head H somewhat enlarged to receive the two
puppet valves K and K', which may be made in any desired style and shape. The
stem M of the lower valve K extends upward into a projecting tube L attached to
the upper valve K. This device furnishes a simple arrangement for steadying and
directing the valves as they rise and fall.
Above the upper valve K¹ we have a discharge chamber N; this chamber is
provided with an outlet pipe P, and a small bridge P¹, which causes the overflowing
Davis 477

page_text: water to always remain a little above the valve K¹; in other words, the upper valve
K' is kept submerged or water packed. R is a moveable cap. A is a diaphragm
chamber connected, as shown, to the space between the valves K and K¹, see Figure
2. C represents a diaphragm made of any suitable material. On either side of the
diaphragm we place a concave disc D and D¹. E is a stem which serves to connect
the diaphragm and the discs D and D'. Through the stem E water is communicated
to the diaphragm, in other words, the pump is worked.
The discs D and D¹ are placed with their convex sides together, and serves to
form supports for the flexible diaphragın C. They also prevent wrinkling, and
allow of greater pressure to be applied without danger of rupture. The disc D¹ is
perforated, seen, n, Figure 2, so as to allow the air, that might otherwise
accumulate below and interfere with the perfect action of the pump, to escape.
Upon one of the discs D or D¹ we form a bead D, see Figure 2, which serves to
assist in fastening the flexible diaphragm C.
The bead d¹ serves to hold the outer edge of the diaphragm C more firmly.
Having thus described the nature and construction of our said Invention, what
we claim as our Invention, and desire to secure by Letters Patent is,―
First. The combination of the diaphragm pump D, C, D, A, with the valve
chamber H in the uptake, said chamber being provided with valves K and K¹, all
operating together substantially as described, and for the purpose set forth.
Second. In a diaphragm pump the perforated concave disc D, operating sub-
stantially as described, and for the purpose set forth.
In witness whereof, we, the said Albert Franklin Eells and Samuel Cutter
Loud, have to this our Specification set our hands and seals, this Eleventh
day of April, A.D. Eighteen hundred and seventy-seven.
ALBERT FRANKLIN EELLS. (L.S.)
SAMUED CUTTER LOUD.
(L.S.)