Improvements in Pumps.
Year: 1898

page_text: Date of Application, 25th Oct., 1898-Accepted, 7th Jan., 1899
COMPLETE SPECIFICATION.
Improvements in Pumps.
We, DIEDRICH DIECKMANN, of 456, West 37th Street, New York City, New
York, United States of America, Coppersmith, and HERMAN MÜNDHEIM, of
260, Bowery, New York City, New York, United States of America, Gentleman, 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 a pump of the class in which a curved flexible tube
is compressed by a rotating roller which causes a suction at its rear and a forcing
effect at its front. The invention consists more particularly in various features
of construction, by which the different sections of the pump are greatly improved
and the general efficiency of the pump is increased.
In the accompanying drawing:
9
Fig. 1 is a vertical central section of our improved pump on line 1, 1, Fig. 2.
Fig. 2 is a plan partly broken away.
Fig. 3 a cross section on line 3, 3, Fig. 1, and
Fig. 4 a cross section through the flexible tube c.
The letter a, represents the base plate of the pump, bolted to a suitable sup-
port b, and provided with a pair of concentric flanges a¹, between which the
flexible tube c, having inlet and exit connections c¹, c², is seated. The bore of
this tube in not circular, but oblone laterally and contracted at the top, it being
substantially of isosceles triangular form in cross section, with a curved base
(Fig. 4) which insures the complete closing of the tube, particularly at its lateral
folds under pressure (Fig. 1).
The tube is attached to the base plate a, by means of headed screw bolts c³,
the heads of which are molded into the tube, while the exposed lower ends are
adapted to receive the fastening nuts ct. End nipples, also molded into the
tube serve for the attachment of the inlet and exit pipes c', c, between which
pipes the tube contains a solid abutment indicated by the dotted lines c, cf,
Figure. 2.
From the center of the base plate a, projects upwardly a stud or shaft d, around
which is free to revolve a top plate or spider e, surrounded by a fly wheel f,
which is bolted to the periphery of plate e, at e¹, and carries the handle f¹, by
means of which the wheel f, and plate e, are jointly revolved. The plate c,
carries a depending circular flange e, which overlaps the outer flange a¹, of base
plate a, to enclose and protect the tube c.
Directly above the tube c, the plate e, is provided with two, more or less, slots
to accommodate the tapering rollers g, which are adapted to compress the tube c,
during their rotation and which together with such tube constitute the operative
mechanism of the pump. Each of the rollers g, revolves on a shaft g', supported
in the depending arms of a U-shaped bearing 92, hinged to plate e, at g³. A
clamp screw g, normally locks the outer end of the hearing to the plate e, so
that such bearing is maintained in its operative position. Should it be desired

page_text: to obtain access to the roller, the screw g', is slackened and the bearing g², thrown
up on its hinge, when the roller will be fully exposed.
To regulate the pressure of the rollers upon the tube, we fit upon the upper
threaded end of stud d, a nut d¹, which engages the hub of plate e, and thus serves
to adjust the horizontal plane of rotation of the rollers."
It will be seen that our improved pump is effective in operation, that its parts
are readily assembled, and that it may be easily taken apart for the purpose of
inspection or repair.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:
1. In a pump the combination of a flexible tube, with an upper plate, a bearing
hinged to the plate, means for locking the bearing to the plate, and a roller hung
in the bearing and adapted to engage the tube, substantially as specified..
2. In a pump the combination of a flexible tube with an upper plate, a bearing
secured thereto, a roller hung in the bearing and adapted to engage the tube,
a fly wheel surrounding the plate; and a handle carried by the wheel, substantially
as specified.
3. In a pump the combination of a flexible tube the bore of which is of isoceles
triangular form with a curved base in cross section, with a rotary roller adapted
to engage and compress said tube, substantially as specified.
4. In a pump the combination of a flanged base with a flexible tube seated
thereon, means for connecting the tube to the base, a shaft, an upper revoluble
plate, a bearing hinged to the plate, means for locking the bearing to the plate,
a roller carried by the bearing and adapted to engage the tube, and a fly wheel
surrounding the plate, substantially as described.
5. An improved pump, substantially as herein shown and described.
.16.11 נ..
SO1 1000