Improved Valve for Oil and other Cans.
Year: 1894

page_text: Date of Application, 6th Nov., 1894-Accepted, 15th Dec., 1894
COMI MIM
DIEUIFICATION.
Improved Valve for Oil and other Cans.
I, HENRY BIRKBECK of the Firm of Tongue & Birkbeck of 31, Southampton
Buildings, Chancery Lane, London, Fellow of the Chartered Institute of
Patent Agents, do hereby declare the nature of this invention (a communication
to me from abroad by the F. Wesel Manufacturing Company, Manufacturers of
Printers' Materials, of No. 11 Spruce Street, in the City, County and State of
New York, United States of America) 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 improved valve for the spouts of oil cans or other
receptacles from which a liquid is to be discharged in graduated quantities and the
object of the invention is to provide a simple valve attachment to the spouts of
cans by which a reliable and convenient means for the discharge of any desired
quantity of liquid from the can is provided the leakage from the can during use
prevented and the can effectually sealed against the accidental discharge of its
contents.
The invention consists of a valve for oil and other cans which comprises a
tubular cap screwed into the neck of the can and provided with a packing ring
for bearing on the neck of the can spout extending through a bottom opening of
the cap into the can and provided with an exterior circumferential flange a
cylindrical cup extending from the flange concentric to the spout a sealing disc having
a packing ring screwed on to the inner end of the spout said spout having apertures
above said disc and a helical spring interposed between the exterior flange and a
shoulder at the inner end of the screw cap.
In the accompanying drawings:
Figs. 2 and 3 represent side elevation of various receptacles to which the
improved valve is applied and
Figs. 4 and 5 are vertical central sections of the valve drawn on a larger scale
and showing it respectively in open and closed positions.
Similar letters of reference indicate corresponding parts.
In the drawings A represents the body of an oil can or other receptacle which
may be of cylindrical conical or other shape and of metal or other suitable material
according to the purpose for which the receptacle is to be used. The cylindrical
can shown in Fig. 1 is intended to be used as a benzine can for printers' use while
the can shown in Fig. 2 is intended for use as an oil-jet can.
In Figure 3 my
improved valve is applied to a bottle for flavouring or other extracts.
The can or other receptacle A is provided at its upper end with an internally-
threaded neck a into which is screwed an exteriorly-threaded cap B which is made
of hollow cylindrical shape. The screw cap B is provided with a cylindrical
opening and with a shoulder at its lower or inner end. Around the block
extends a flange 6 the circumference of which is milled so as to provide a proper
hold for the thumb and finger and permit the easy rotation of the screw cap B
while inserting or removing it from the neck of the can. An annular recess is
formed in the under side of the flange b¹ of a suitable depth and width to receive
and retain a packing ring 2 that forms contact with the upper edge of the neck
of the can so as to seal the joint between it and the screw cap B. In the screw
cap B is guided a spout C of any suitable length which is provided with an
exterior circumferential flange d at some distance from its inner end said flange
being designed to afford a finger hold for the manipulation of the valve when it is
to be used. From the under side of the flange d extends an inverted cup d' which

page_text: is of cylindrical shape and concentric with that part of the spout which it surrounds
a sufficient space being left between the cup and spout so as to permit the insertion
of a helical spring e.
The exterior diameter of the cup d' is such that it can be loosely fitted into the
interior recess or chamber in the screw cap B. A packing ring f.of any suitable
material is seated in the upper end of the cup d' said ring serving as a support for
the upper end of the helical spring e the lower end of which is seated on the interior
shoulder b of the screw cap B. On the lower or inner end of the spout Can
exterior screw thread is formed to which a cup-shaped and interiorly-threaded
sealing disc D is applied which disc is recessed in its upper face near the edge for
the insertion of a packing ring g which ring is designed to bear on the tapered
lower edge of the screw cap B when the helical spring e is expanded whereby any
part of the contents of the can is prevented from passing into the spout as shown
in Fig. 1. The lower or inner end of the spout C above the disc D is provided
with one or more holes through which the liquid is conducted from the can into
the spout.
When the oil can or other receptacle is to be used the operator grasps the can
with the thumb and palm of the hand and applies the fingers to the exterior
circumferential flange d of the spout C and presses on said flange so that the
helical spring e is compressed until the flange d abuts against the upper edge of
the screw cap. By the inward pressure of the perforated end of the spout the
liquid in the can can pass through the openings h into the spout it being ejected from
the same either by holding the can in inverted position or by imparting simulta-
neously a jerking motion to the can or by pressing on the spring bottom of the
same or in any other suitable manner. As soon as a sufficent quantity of the liquid
is discharged the pressure on the flange of the spout is released and the sealing
dise returned by the spring into its former position against the inner edge of the
screw cap so that no more liquid can pass through the spout to the outside. By
the sealing action of the packing ring of the disc D against the screw cap B the
liquid in the can is prevented from passing through the openings at the inner end
of the spout into the same and consequently no liquid can escape even if the can
be thrown over or inverted.
When it is desired to fill the can with oil or other suitable liquid the screw
cap B is unscrewed from the neck of the can and the can filled the opening in the
neck being of sufficient size to permit the convenient insertion and removal of
the valve. When the can is filled it is closed again by screwing in the screw cap
with its valve attachment so that thereby a separate filling opening for the can is
dispensed with.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A valve for oil and other cans consisting of an exteriorly threaded tubular
cap screwed into the neck of the can and provided with an exterior packing ring
bearing on the upper edge of the neck of the can a spout extending through a
bottom opening in the screw cap into the can and provided with an exterior
circumferential flange and with openings at its inner end a cylindrical cup
extending around the spout into the screw cap a sealing disc screwed on to the
inner end of the spout and provided with a packing ring bearing on the inner
edge of the screw cap and a helical spring interposed between the flange of the
spout and the shoulder at the inner end of the screw cap and located in the
annular space formed between the spout and cup substantially as set forth.
2. A valve for oil cans and other receptacles consisting of an exteriorly
threaded tubular cap screwed into the neck of the can and provided with
an external flange having a groove at its under side and a packing ring
in said groove the inner end of the cap being provided with a central opening
an inwardly extending shoulder and a tapered inner edge a spout guided in the

page_text: opening of said cap and provided with an exterior circumferential flange and
openings at its inner end a cup extending from the flange into the screw cap
a sealing disc attached to the inner end of the spout and provided with a
groove and a packing ring in said groove bearing on the inner edge of the
screw cap and a helical spring located in the annular space between the spout
and cup and interposed between the exterior flange and the inner shoulder of
the screw cap substantially as set forth.
D 10th day of November 1901
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.