Year: 1888

page_text: I, WILLIAM PHILLIPS THOMPSON F.C.S. M.I.M.E. of the Agency for Foreign Patent
Solicitors, 6 Lord Street, Liverpool, and 6 Bank Street, Manchester, both in the
County of Lancaster, and 323 High Holborn, in the County of Middlesex, Civil
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 :-
The object of this invention is partly to provide an ink reservoir and ink-pot com-
bined, into which it is always easy to pour only as much ink as is absolutely necessary
for the purpose of writing, while it is also easy to pour the superfluous ink from the
ink-pot into the reservoir, when the writing is completed. This construction avoids
the drying up of the ink, and the introduction therein of dust and other impurities
from the outside, and admits of the last drop of the ink being used, without fear of it
getting thick.
The invention is best described by aid of the accompanying drawings, in which,
Figure 1 is an elevation of the ink-pot and reservoir.
Figure 2 a longitudinal section of the same through the line Y, Y, of Figure 4.
Figure 3 a section through the line X, X, of Figure 1.
Figure 4 a plan.
In all these Figures, similar letters refer to similar parts.
The device, which is preferably mostly made of glass, consists of an ink reservoir B,
the top face of which is provided with two holes, each surrounded by a short vertical
lip forming necks, A and a, projecting above the top surface. Ink is poured into 'the
reservoir B through neck a, which can be closed by means of a lid d screwed thereon.
In the hole A (which can be closed in a similar manner by means of a lid D), a
funnel shaped ink-pot T is held in place by a joint of putty or the like. This
ink-pot is provided at its upper part with two holes 0, 0, on opposite sides of the
walls of said pot.

page_text: When it is wished to pour ink from the ink reservoir B into the ink-pot T, the
lids D and d having been screwed on, the reservoir B is raised a little on one end,
and the ink flows into the ink-pot through the opening O in the direction of the
arrow 1, whilst the air, displaced by the inflowing ink, escapes into the reservoir
through the other hole O, and in the direction shown by the arrow 2. When the
contents of the ink-pot have been exhausted, the latter is filled again in the same
manner, and so on. Whilst the ink is being used for writing, the small quantity
contained in the pot T is alone in contact with the surrounding air, whereas the
ink in the reservoir B is cut off or protected from contact with the air. If, after
the writing is done, there is a little ink left in the pot T, the lid D is screwed on
and the ink reservoir B tilted up so as to allow this small quantity of ink to flow
back from the pot T into the said reservoir. In this case the ink still remaining
in the pot B flows through..the hole into the reservoir B in the direction of
arrow 2, whilst the air displaced thereby, enters the ink-pot through the other hole O
in the direction of arrow 1. The ink-pot can thus always be kept empty.
The invention is not limited to ink-pots, as it may also be used for any other
liquid, such as Indian ink, colour, varnish, etcetera.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is :-
In a reservoir B containing liquid, such as ink, colour, varnish, etcetera, the
arrangement of a smaller reservoir T, provided with holes 0, 0, placed opposite each
other, in the upper part of the walls, so that when the reservoir B is tilted, a certain
quantity of liquid is enabled to flow through the said holes from the reservoir B into
the smaller reservoir T, or conversely from the smaller reservoir Tinto the reservoir B,
whereby the liquid always flows through one of the holes O, whilst the air displaced
thereby, escapes through the other.