Improvements in Inkstands and relating to Vessels for Containing Liquids which are Required to be Removed Intermittently.
Year: 1896

page_text: Date of Application, 31st Oct., 1896
Complete Specification Left, 31st July, 1897-Accepted, 4th Sept., 1897
Improvements in Inkstands and relating to Vessels for Containing
Liquids which are Required to be Removed Intermittently.
WALTER EDMUND KERSLAKE Mechanical Engineer 16 Woodland Road, Walton,
Liverpool and EDWARD STEVENS HITCHCOCк Merchant 48 Longland Road, Liscard,
Cheshire do hereby declare the nature of this invention to be as follows:-
Our present invention relates to vessels for containing liquids which are to be
removed intermittently by means of a pen, or brush, or the like, and the object is to
enable the pen or brush to be charged with a necessary quantity of liquid irrespective
of the quantity in the vessel. The invention refers more particularly to Inkstands.
Devices for this purpose have previously been employed in which the elastic pressure
of imprisoned air is used to drive or regulate the admission of the liquid into a
dipping cup, but various difficulties have presented themselves owing to perishable
material being necessarily employed (perishable because exposed to the action of the
atmosphere). In our present invention the action depends either upon liquid
pressure or by an elastic agency, and the difficulties referred to are thereby overcome.
We provide a Container of suitable shape, preferably formed with the top portion of
a larger diameter than the bottom. Within the Container we place a vertical tube,
the bottom end of which may rest on the bottom of the Container, and may be
either open or sealed at this (the botton) end; or the tube may be suspended from
the, underside of the cover or cap which fits into the Container. In each case a small
aperature or passage is left in the tube to allow any liquid that may be in the
Container to freely pass into the tube. Within the tube we place a float made of
cork or other suitable material.
This float is rather smaller than the internal
diameter of the tube and always floats above the highest level of the liquid. The
float is guided concentrically by the tube, and is shorter than the interual length of
the tube, so that it can be readily depressed a short distance by the pressure of a pen,
brush, or the like. The space below the float is always filled by the liquid in the
Container, which enters through the aperture or passage in the tube, and it will be
seen that on the depression of the float that only a small portion of the liquid can
escape back to the Container, having the weight of the liquid in the Container
against it; so the bulk of the liquid in the tube) will be pumped up over the float
and the pen or brush will receive its charge. When the pressure is relieved the float
will mount on the top of the liquid in the tube and will thus protect it from coming
in contact with the atmosphere. Or we may assist the float to achieve this object
by inserting on its uuderside a spring, preferably of rubber.
In the case of Inkstands we prefer to make the top of Container in the form of a
detachable cover having a central hole into which is fitted a metal cap. This cap
also prevents the float passing out of the central tube, and as before stated if
desirable this cap may have attached to it the tube in which the float is placed.
Dated this 29th day of October 1896.
W. E. KERSLAKE.
EDWARD. S. HITCHCOCK.

page_text: Improvements in Inkstands and relating to Vessels for Containing
Liquids which are Required to be Removed Intermittently.
WALTER EDMUND KERSLAKE, Mechanical Engineer, 16 Woodland Road, Walton,
Liverpool, and EDWARD STEVENS HITCHCOCK, Merchant, 48 Longland Road, Liscard,
Cheshire, 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 :-
Our present invention relates to vessels for containing liquids which are to be
removed intermittently by means of a pen or brush or the like and the object is
to enable the pen or brush to be charged with a necessary quantity of liquid
irrespective of the quantity in the vessel. The invention refers more particularly to
inkstands. Devices for this purpose have previously been employed in which the
elastic pressure of imprisoned air is used to drive or regulate the admission of the
liquid into a dipping cup, but various difficulties have presented themselves owing
to the perishable materials necessarily employed (perishable because exposed to the
action of the atmosphere). In our present invention the action depends either upon
liquid pressure or by an elastic agency, and the difficulties aforesaid are thereby
overcome.
The drawings herewith are intended to illustrate our invention.
Fig. 1. represents an inkstand ready for use.
Fig. 2 represents an inkstand with the float depressed by the pen which on
withdrawal has received its supply of liquid. The similar parts of each of the
drawings are indicated by the same reference figures.
We provide a container (1) of suitable shape, preferably formed with the top portion
of larger diameter than the bottom.
Within the container (1) we place a vertical tube (3) the bottom end of which
may rest on the bottom of the container (1) or may be suspended from the
cover (4). A small aperture or passage (5) is left in the tube (3) to allow any liquid
that may be in the container (1) to freely pass into the tube (3).
Within the tube (3) we place a float (6) made of cork or other suitable material.
This float (6) is rather smaller than the internal diameter of the tube (3) and
always floats above the highest level of the liquid. The float (6) is guided
concentrically by the tube (3) and is shorter than the internal length of the said
tube, so that it can be readily depressed a short distance by the pressure of a pen,
brush or the like. The space (7) below the float (6) is always filled by the liquid in
the container (1), which enters through the aperture or passage (5) in the tube (3).
By referring to Figure 2, it will be seen that on the depression of the float (6),
only a small portion of the liquid can escape back to the container (1) having the
weight of the liquid in the said container against it; so that the bulk of the liquid
in the tube (3) will be pumped or raised over the float (6) and the pen or brush will
receive its charge. When the pressure is relieved the float (6) will mount on the top
of the liquid in the tube (3) and will thus protect it from coming in contact with
the atmosphere. Should the float require assistance a spring of any suitable
material may be placed on its underside.
In the case of inkstands we prefer to make the top (4) of the container (1) in the
form of a detachable cover having a central hole into which is fitted a cap (8) of
metal or other suitable material. This cap also prevents the float passing out of the
tube (3) by the central hole and as before stated this cap may have attached to it
the tube (3) in which the float (6) is placed.

page_text: Having now particularly described and ascertained the nature of our said invention
and in what manner the said is to be performed, we declare that what we claim is
1. In vessels for containing liquids which are required to be removed in small
quantities by a pen, brush or the like, the combination of a float (6) guided by
means of a tube (3).
2. Which tube inay be either attached to and form a portion of the cover or may
be separate from the cover and rest on the bottom of the container.
3. Which tube (3) is provided with a small aperture or passage to allow free
ingress or egress to or from the container so that on the depression of the float the
bulk of the liquid will be pumped up over the float, and the pen, brush or the like
will receive its charge and so that on the withdrawal of the pen, brush or the like,
the liquid will descend, and the float will rise above the surface of the liquid and
thus to a large extent overcome evaporation.
Dated this Thirtieth day of July 1897.
WALTER EDMUND KERSLAKE.
EDWARD S. HITCHCOCK.