A New or Improved Reservoir Penholder.
Year: 1892

page_text: Date of Application, 29th Sept., 1892-Accepted, 5th Nov., 1892
COMPLETE SPECIFICATION.
A New or Improved Reservoir Penholder.
I, LEOPOLD LÖWENSTEIN of No. 84 Alte Jacobstrasse Berlin in the Empire
of Germany Umbrella Manufacturer do hereby declare the nature of my said
invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :-
The present invention refers to those penholders which deliver the ink contained
therein to an ordinary writing pen.
The object of this invention is the construction of a penholder, the arrangement
of which is so simple that the cost of production of the same is extremely small
and penholders thus made may be sold at a comparatively low price.
The holder merely consists of a metal or other tube which is closed at each end
by removable stoppers or plugs one of which is provided with the necessary partly
annular groove for the insertion of the pen and a channel communicating with this
groove which channel can be more or less opened or altogether closed by a fixed
valve in the tube according to the position of this stopper, whilst the other
stopper has air inlet holes which can be opened or closed to the outer air as
desired.
A penholder of this construction is shown on the accompanying drawing of
which
Figure 1 is an elevation.
Figure 2 a sectional elevation of the lower part of the holder with pen
therein.
Figure 3 a similar view of the upper part of same.
Figure 4 a sectional plan on a Figure 2 and
Figure 5 is a sectional plan on line y y Figure 2.
The tube a forming the holder is provided with internal screw thread both at the
top and bottom. In the lower end of the tube are screwed two stoppers or plugs b
and c Figure 2, firstly the plug b and then that designated by the letter c.
The
plug b has two vertical holes d (see also Figure 4) and is provided underneath in
the middle with a projection e which is made cylindrical above, then cone shaped
and is finished off below cylindrically with a greatly reduced diameter. This
projection serves as a valve for the regulation or closure of the opening or portf
in the plug e according to the position of the said plug. The lower part of the
vertical port is connected to a transverse porty and the latter communicates by
a channel h with the annular groove i for the insertion of the pen k. This annular
groove is formed by making the lower plug of two parts namely, an outer sleeve c
and inner screwed cylindrical part 1, which latter is made smaller from m to n so as
to form a space between it and the interior of the sleeve c. The part is also
from m to n cut out or drilled longitudinally in the middle, in order to render it
somewhat flexible.
C
The above named channel is made by making the part flat here as shown
also on Figure 5. This flat surface extends from the transverse port g to the outer
end of the part 1 so as to show from the outside the place for the insertion of the
pen and so that the ink may flow in the proper direction and sufficiently to feed
the pen. The pen must consequently be so inserted that the centre of its concavity
coincides with the centre of the flat surface.
In order to facilitate the regulation of the plug c the latter is provided with a
milled flange o.
Air is admitted above the ink into the holder so that when the latter is filled
the ink flows through the ports or openings ƒg and h to the pen & and this is
attained by partly unscrewing the plug or stopper p (Figure 3). This plug has a

page_text: r
central hole g communicating with a transverse hole and the upper part of the
plug is reduced in diameter so that an annular space s is left between it and the
interior of the tube a which permits free passage of the outside air to the inside of
the tube a below the plug. The plug p is surmounted by a milled capt of a greater
diameter than the tube a, in such manner that when the plug is quite screwed down
the lower surface of the cap seats itself against the upper edge of tube and thereby
prevents the entry of air into the said tube. If on the other hand the plug be
partly unscrewed as shown in Figure 3, air enters between the under side of the
capt and the upper edge of the tube and into the annular space s and from thence
by holes r and q into the tube a, whereupon the ink contained in the tube flows to
the pen by ports fg and h in the lower part 1 the amount of ink flowing out is
regulated by screwing the lower plug c 1 in or out more or less and thereby
diminishing or increasing the opening between the valve e and its seating in the
port f
The admission of air may either be attained by a plug as shown or by a slide
valve or a closing cape or sleeve which opens or closes an air hole or holes according
to its position.
The charging or filling of the penholder may either be effected by screwing the
lower plug home thereby closing the port and then removing the upper stopper p
from the tube a and filling the latter or the upper stopper may be screwed home and
thereby cut off the supply of air in this direction whereupon the holder is inverted
the lower plug c unscrewed and the interior filled through the holes d of the
intermediate plug b.
In order to protect the lower plug against the entry of dust a cap u is preferably
slipped on and this also serves to protect the pen.
The tube a holds sufficient ink for several day's use.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is
First. A reservoir penholder consisting of a tube a for holding the ink and
having an upper stopper valve or cap t p for the regulation of the entry or closure
of air to the interior of the tube and an intermediate fixed plug c for the passage
of the ink and a lower plug c for regulating and shutting off the supply of ink to
the pen substantially as described and shown.
Second. The construction of reservoir penholder as shown on the drawing.
Dated this 29th day of September 1892.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.