Improvements in Portable Hand Pumps for Fire Extinguishing and other Purposes.
Year: 1887

page_text: Date of Application. 10th Nov., 1887
Specification Accepted, 13th Dec., 1887
Improvements in Portable Hand Pumps for Fire Extinguishing
and other Purposes.
I, CAESAR BADE of Hamburg in the Empire of Germany, Engineer 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 comprises a portable apparatus for enabling water or other liquid to
be pumped or squirted as for instance for extinguishing fire or other purposes.
Referring to the accompanying drawings Fig. 1 is a sectional side elevation and
Fig. 2 a sectional plan of the portable apparatus. Figs. 3 to 7 detail views of parts on
a larger scale.
A. is a receptacle suitable for containing liquid such as is to be pumped or squirted
g are handles whereby the said receptacle is rendered portable d is a flap or cover
through which the receptacle may be filled e is a recessed portion thereof into which
the foot of the operator may be placed for steadying the apparatus when operating the
pump. In the bottom of the receptacle is arranged the step bearing or support f. for
the lower end of the pump the same containing the sieve u for the protection of the
pump from solid matter, impurities, etc. The pump barrel S inserted in said bearing
passes upward through the cover of the receptacle, the latter being provided with a
ring rencircling the enlarged or strengthened portion of the barrel which is held secured
therein against withdrawal by set screw t. The construction of the pump is as follows.
The lower part of the barrel S is closed by the indiarubber ball Ġ seated upon a
suitable valve flange and retained by the perforated cover k, the barrel S terminates
above in the chamber B provided with the tubular extension a to which the hose T
may be attached by a suitable union b. In the barrel S. slides the piston K tightened
by the packing rings c c preferably of leather held firmly by the ring m as shown in
Fig. 3. In the piston K is the valve formed by the rubber ball the movement of
which from its seat is limited by the pin h. The piston rod is formed by the tube R
passing upwards through packing box p of the chamber B, and terminating in a
hollow chamber W above which is attached the handle H by which the pump is
operated. The valve D opens into the tube R and the space in the latter is in com-
munication with that between the tubes R and S through openings / near the valve K.

page_text: The hose T terminates in the jet T' on which may be screwed the various nozzles
shown in Figs. 4, 6 and 7 or others according to the form of jet required. The nozzles
not in use are preferably screwed upon bosses o on the wall of the chamber B.
The water is drawn into the barrel S during the upward stroke of the piston, and
during the downward stroke thereof is transferred to the tube R through valve D
compressing the air in said tube and partly escaping through perforations / into the
space around the tube R, thence to chamber B and to the jet. The compressed air
in W causes the stream of water delivered to be more equable.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The combination of a receptacle A having bearings fand, with pump adapted to
be inserted into said bearings said pump having barrel S with chamber B, piston K
tubular piston rod R with perforations and air chamber W substantially as and for
the purpose set forth.
CAESAR BADE.
By Herbert & Co.,
18, Buckingham Street,
Charing Cross, London, W.C.,
Agents to Applicant.
Dated this 10th day of November 1887.
CAESAR BADE.
By Herbert & Co.,
18, Buckingham Street,
Charing Cross, London, W.C.,
Agents to Applicant.