New or Improved Pump for Domestic or other use.
Year: 1899

page_text: Date of Application, 20th Nov., 1899-Accepted, 20th Jan., 1900
COMPLETE SPECIFICATION.
New or Improved Pump for Domestic or other use.
I, CARL BAUM, Merchant, of Mannheim, L 2, 11, in the Empire of Germany,
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 follow-
ing statement:―
The present pump is intended principally for domestic use as injector,
sprayer, salting apparatus, as a syringe for removing insects from meat and the
like and for pharmaceutical, chemical, medical and the like purposes, and also
as mouth, eye, clyster, or wound etc. syringe.
It consists, as shown in the accompanying drawing in sectional elevation of
a cylinder d provided with a suitable flange or base for fastening on to a table
or the like. In this cylinder d is a movable piston a which is preferably provided
with a handle b or with a lever eccentric or the like. In the lower end of the
cylinder terminates a channel m provided at n with a perforated wall, sieve, re-
duced opening, cross rib or the like and outside said channel m are two branch
channels namely the suction channel g and the pressure channel h. These two
latter channels end in suitable nozzles or joints to which the various apparatus
for the different uses are connected by flexible pipes. The suction channel g is
provided with the valve c and the pressure channel with the valve e; which
valves may be ball, plate, flap or the like valves. In the form of construction
shown ball valves are used which are put in one above the other next to the junc-
tion of the two channels g and h in the manner shown in the drawing. The dia-
meter of the lowermost, that is the suction valve is a little smaller than the
diameter of the part of the pressure channel h immediately above same so that
after removing the screw plug ƒ in the valve housing arranged above the pressure
valve both the valves can be removed or changed.
The fastening of the syringe to the table or the like can of course be effected
in any suitable manner. In the form shown in the annexed drawing a screw
clamp i has been provided which is forked above gripping on both sides over
the flange of the cylinder.
The manner of working of the hereinbefore described arrangement is as
follows:-
By operating the piston a by means of the handle 6 fastened on the piston rod,
the suction valve c opens and the entrance into the cylinder of the liquid to
be used takes place through the channel g. The suction valve is prevented
from entering into the cylinder by the perforated wall or the like n
Upon the return stroke of the piston a the suction valve c closes and the pressure
valve e opens allowing the discharge of the liquid through the channel h.
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
A new or improved pump for domestic and other uses consisting of a cylinder d

page_text: provided with fastening flange k with piston a operated by hand and a channel m
branching into suction and pressure channels g and h with suitable nozzles;
valves cand e in said branch channels being so arranged that they can be ex-
changed or removed after removing a screw plug f substantially as illustrated
and described.
Dated this 20th day of Namba 1900
HERBERT HADDAN & Co.,
Agents to Applicant,
18, Buckingham Street, Strand, W.C., London.