Improvements in or connected with Pumps.
Year: 1891

page_text: Date of Application, 15th Apr., 1891
Complete Specification Left, 15th Jan., 1892-Accepted, 5th Mar., 1892
PROVISIONAL SPECIFICATION.
Improvements in or connected with Pumps.
I ALEXANDER VON KIETER, of Weisser Hirsch, Dresden, Germany, Engineer,
do hereby declare the nature of this invention to be as follows:-
-
This invention has for its object to do away with or decrease the inconveniences
which arise from mud, grit or other bodies becoming jammed in or about the valves
or clacks of pumps, an accumulation of such grit etcetera of preventing the proper
action of the pumps.
In the accompanying drawings
Fig. 1 and 3 are transverse sections of pump cylinders with clack valve mechanism
of usual constructions but provided with arrangements according to my invention
for trapping the grit while
Fig. 2 is a cross section on line A-B of Fig. 1.
a is the pump cylinder and c the clack valve. The bottom of cylinder a is
moulded or formed according to my invention in such a manner that a gutter e,
wide at top and narrowing downwards, is formed all round the bed for the clack
valve c to close against.
It will be readily understood that by this arrangement there is no space for any
grit to become lodged under the hinge of the valve, but that it must go into the
gutter e the only place where any grit can lodge being at d, but as this is narrow
and constantly flushed, it of course has no injurious effect. The gutter e com-
municates with a trap into which the grit becomes precipitated and by the
peculiar shape of such trap as shewn in the drawing, the grit would not be easily
sucked out by the action of the pump, but openings with covers are provided to
remove from time to time any accumulated grit.
Dated this 30th day of March 1901
BONNE & Co.,
57 & 58, Chancery Lane, W.C.,
Authorised Patent and Trade Mark Agents.
COMPLETE SPECIFICATION.
Improvements in or connected with Pumps.
I ALEXANDER VON KIETER of Weisser Hirsch near Dresden in the German
Empire, Civil Engineer do hereby declare the nature of the said invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
The frequent interruption in the working of pumps caused by various solid
substances getting under the clacks or between the underside of valves and the
valve seats, is obviated by the construction illustrated in the drawings accompanying
my Provisional Specification.
Fig. 1 shews the invention applied to a suction pump,
Fig. 2 is a section of Fig. 1 on the line AB, while
Fig. 3 shews the invention applied to the plunger of a plunger pump.
The closing contrivance consists of a weighted leather clack e which is provided
with a clamp, around which is funnel shaped cavity connected by means of the
narrow ring-shaped crevice with the enlarged chamber f.
"
It will be easily seen that in consequence of these arrangements foreign bodies
can never get fixed under the valve, and particularly not underneath the joint of
the latter, as under the same we have the funnel like cavity e and any solid
substances would fall therein and thence into chamber.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
In pumps the arrangement of a funnel shaped cavity e alone or in combination
with an enlarged chamber ƒ substantially in the manner as and for the purpose
described.
1000
C. R. BONNE & Co.,
57 & 58, Chancery Lane, London, Patent Agents.