Receptacles for Containing Inks and Fluids used for like purposes.
Year: 1890

page_text: Date of Application, 19th Dec., 1890-Accepted, 31st Jan., 1891
COMPLETE SPECIFICATION.
Receptacles for Containing Inks and Fluids used for like purposes.
I, HARRY JONES HARMAN, of 36, Gaisford Street, London, N.W., in the
County of Middlesex, Civil and Mechanical 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 my invention is to facilitate the use of a small quantity of the
fluid in a receptacle such as may be required for immediate use without exposing
the main bulk of the fluid to the atmosphere dust or other deteriorating influences
and is intended to be used for receptacles for containing inks or fluids used
for like purposes. The central well containing only a given depth of the fluid
waste is thereby prevented as the pen or other instrument used does not
penetrate the fluid further than is required to fill the pen or instrument for the
time being.
The accompanying drawing illustrates the form of my improvements.
Figure 1 is a sectional elevation the whole of the contours being truly circular
on plan further drawings are unnecessary.
My improvement consists in forming in the centre of a part hereinafter called
the plunger a central well which is supplied with fluid from the lower interior
portion of the receptacle in such manner that the central well contains a separate
and sufficient quantity only of the fluid as may be required for immediate use.
The outer casing of the receptacle A may be formed of any suitable shape
for the purpose for which it is intended. In the upper part of this outer casing A
I make a circular or other suitable shaped opening with a recess D formed on
the inner circumference for the purpose of inserting therein a packing ring E
hereinafter described. I make the plunger B of a vertical conical hollow
circular or other suitable shape to fit loosely into the packing ring and of a
sufficient depth for the required purpose. The upper end of the plunger
terminates in a partially stopped end having a projecting flange on the outer
circumference for the purpose of lifting the part and also to form a bearing to
rest on the packing ring and on the inner circumference I form a hollow conical
well projecting downwards through the central portion of the plunger into the
interior of the receptacle or outer casing.
The larger and upper end of the conical well adjoins the partially stopped
upper end and the well is made of a sufficient depth and thickness for the purpose
required the lower and smaller end terminates in a stopped end which is made of
a sufficient depth or thickness to permit of it being surrounded by fluid when
placed in position.
On the outer circumference of the conical well I form a hollow vertical tube C
commencing at the bottom exterior end and reaching up to any required distance
above the lower interior stopped end of the conical well at which point the tube is
open to and communicates at a right angle with the interior of the well.
I place a packing ring of india rubber or any other suitable material E of a
suitable shape between the plunger part and the outer casing of the receptacle A
for the purpose of preventing any escape of air when the plunger is operated.
This packing ring is formed to act as a spring thereby returning to its normal
shape after each operation of the plunger and likewise to contain a certain air
capacity the air therein being forced out into the interior of the receptacle A at
each operation of the plunger thereby materially assisting in raising the fluid. To
effect these purposes I prefer to make the packing ring E circular in plan and
sectionally in the form of a thin flat vertical band having a central portion of a

page_text: hollow semi-circular shape which fits into the recess formed in the opening of the
outer casing of the receptacle A.
In using my improvements in receptacles for fluids the action is as follows
The plunger B being removed the receptacle A is partially filled with fluid to a
suitable depth. The plunger is then placed in position passing through the
packing ring E until the flange on the upper end rests on the packing ring the
lower end reaching into and being surrounded by the fluid.
The plunger is then gently pressed downwards an air tight joint is formed
between the flange of the plunger and the packing ring and also between the
packing ring and the receptacle A when the fluid passes up the tube C and into
the interior of the conical well in sufficient quantity to fill or more than fill that
part of the well below the point where the tube communicates.
The plunger being released returns to its normal position allowing air to enter
around the packing ring and any surplus amount of fluid in the well returns down
the tube C into the interior of the outer casing of the receptacle A.
The raising of the fluid into the well is caused partially by the displacement of
the fluid by the lower-stopped-end of the conical well and partially by the com-
pression of the air above the fluid in the receptacle A by reason of the pressing
down of the plunger B but the operation may be performed entirely by means of
the compression of the air the plunger B fitting on the packing ring E when
pressed down sufficiently tight as not to permit of any appreciable amount of air
passing out.
When the fluid in the well has been used and requires renewing the plunger is
pushed downwards causing the fluid to fill the well as before described.
The parts forming my invention may be made of any suitable metal material
mineral or substance.
´Having_now_particularly described and ascertained the nature of my said
invention and in what manner the same may be performed declare that what-
I claim is :-
1. The form and combination of the parts hereinbefore set forth and con-
structed substantially as illustrated by the accompanying drawing for the purpose
of raising a portion of the fluid contained in the main receptacle to a higher
level and depositing the said-portion-separately-in a separate vessel or well placed
in the upper interior part of the main receptacle.
2. The form and combination of the parts herein before set forth and constructed
substantially as illustrated by the accompanying drawing for the purpose of
effecting the separation of the fluid by means of compressing the air contained in
the packing ring and the interior of the outer casing of the receptacle or by the
partial displacement of the fluid by the plunger acting in conjunction with the
compression of the air.
Dated this 18th day of December 1890.