Improvements in or relating to Ink Pots in which the Ink is Raised by Compressed Air.
Year: 1895

page_text: Date of Application 21st Sept., 1895-Accepted. 18th Jan., 1896
COMPLETE SPECIFICATION.
Improvements in or relating to Ink Pots in which the Ink is Raised
by Compressed Air.
I, Dr. LADISLAUS KRÖCZER of Tokaj, Hungary Owner of a Pharmaceutical
Chemist's Business, 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 an ink pot in which the ink is forced up to and
maintained at the desired height by means of compressed air and is thereby caused
to pass up a tube which extends down to the bottom of the ink pot and thus is the
ink supplied for use.
I will now describe my present invention with reference to the accompanying
drawings in which :-
Fig. 1 is an elevation of the ink pot, and
Fig. 2 is a vertical section through the same according to my present invention.
The inkpot a advantageously has a concave shaped bottom thereto see Fig. 2
with a small depression or cavity b therein.
A funnel d extends through an opening c of the ink pot into the interior of the
ink-containing vessel the arrangement being such that this funnel makes an air
tight joint with the vessel and the lower end thereof extends close down to but
just short of the bottom of the ink pot-or into the cavity b in the concave bottom
if used.
A second opening e in the pot is also closed air-tight by means of a device for
producing compressed air. This latter consists of any suitable and simple device
for producing compressed air for instance of a rubber ball g provided with a hole f
(either open or controlled by an inlet valve) and fixed to a stopper or plug h. The
compressed air produced by compression of this ball can pass out through a second
opening from said rubber ball g and this compressed air is then led through the
passage i into the upper part of the vessel a.
This passage i is closed by means of a non-return (or back-pressure) valve k.
The funnel d may advantageously carry a cover l.
In order to place the ink pot in condition ready for use pressure is applied to
the rubber ball g in such a manner that during the application of the pressure the
hole in the ball is kept closed with one finger or this hole may be controlled
by an inlet valve. The air forced out from the ball passes through the passage i
into the ink-containing vessel in which ink has already been poured through the
opening c and the funnel d replaced in position.
If now the ball be released it will at once become filled again with air which
flows in through the hole f and the above described operation can be repeated.
When sufficient pressure has been produced in the pot a the ink is forced up
through the hole of the funnel and flows into the "bowl" or top part thereof and
is thus ready for use.
The compressed air is prevented from escaping by the non-return valve k.
This compressed air ink pot has important advantages as compared with other
arrangements. It holds a great quantity of ink which is not liable to become
thick since it does not come in contact with the outer air. The ink can be used
up almost to the last drop because it collects at the lowest part of the bottom and
the funnel extends down into this lowest part. Furthermore it is not easy to
overcharge the pen with ink because the level of the ink can be readily adjusted by
means of the pressure of the air.

page_text: 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 :-
1. The combination with an ink pot and a funnel-like device extending to nearly
the bottom thereof of an air-compressing device separately arranged and mounted
on said ink-pot to force air into the interior of the latter and thereby force the ink
up the funnel and retain same therein at the desired height substantially in the
manner and for the purposes herein before described.
2. An ink pot having an opening therein such as e adapted to be tightly
closed by a funnel-like device such as d having a passage way therethrough in
combination and acting in conjunction with an air-compressing device such as g
adapted to force air into the interior of said ink pot substantially in the manner
and for the purposes herein before described and illustrated in the drawings
hereunto annexed.
Dated this 21st day of September 1895.
TONGUE & BIRKBECK,
Southampton Buildings, Chancery Lane, London, W.C..
Agents for the Applicant.