An Improved Dropper-spout for Oil Cans or other Vessels.
Year: 1890

page_text: Date of Application, 10th Nov., 1890
Complete Specification Left, 8th Aug., 1891-Accented
10th
0
PROVISIONAL SPECIFICATION.
An Improved Dropper-spout for Oil Cans or other Vessels.
A communication from SYLVESTER P. DENISON, of Brooklyn, State of New York,
in the United States of America.
I RICHARD SYDNEY BROWNLOW of Canning Works Manchester in the County
of Lancaster Filter Manufacturer, do hereby declare the nature of this invention
to be as follows:-
This invention relates to an improved dropper-spout for oil cans or other vessels
by means of which fluid is delivered from the can or other vessel, or reservoir in
which it may be contained in drops or regulated quantities.
The invention consists principally of a hollow cylinder having a base or bottom
on which rests a spiral spring the upper end of the cylinder is provided with a
circular flange and a screw by means of which it can be attached to a suitably
screwed mouth or aperture in the oil can or other vessel. The base has a central
hole through it on each side of which there is another smaller hole. Through the
central hole in the base extends a tube which also passes upwards through the
cylinder, and is constructed to form at one end a spout and at the other slotted to
receive the fluid from the can or reservoir. This tube carries a drip cup above the
cylinder and a cylindrical piston working in the latter and packed by a suitable
washer.
The slotted lower end of the tube passes through a hole in a flexible washer,
through two crescent shaped holes in a second washer and is then secured to a metallic
plate beneath. The slot in the tube is made of sufficient length to extend above
he flexible washer, and the latter is kept in contact with the bottom of the tube so
s to close the two small holes above named, by the pressure of the spiral spring
orcing the piston and tube upwards.
When this dropper spout is applied to any can or vessel containing oil or fluid its
anner of operating is as follows: On reversing the reservoir and pressing the drip
up inwards the slotted part of the tube is driven beyond the hole in the bottom
the cylinder and the flexible washer or valve is thus withdrawn from the bottom
the cylinder and the small holes are thus uncovered exposing the slotted
rtion of the tube and permitting the fluid from the reservoir to enter the tube
d from this point it is driven to the end of the tube or spout in quantities
gulated by the extent and frequency of the depression which the piston
dergoes.
After each. depression of the piston it is immediately returned to its original
ition by the action of the spring and the openings are closed again by the
ible washer or valve.
To prevent the accidental depression of the piston an upright is sometimes
ched to the upper flange of the cylinder and this upright is made of such a
ght as to come under the edge of the drip cup.
drip cup at any place sufficiently wide to allow the upright to pass, and when
A notch is cut out of the edge of
dropper spout is not in use it can be locked by slightly rotating the same so
bring the solid portion of the rim above the upright.
Dated this 8th day of November 1890
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant

page_text: COMPLETE SPECIFICATION.
An Improved Dropper-spout for Oil Cans or other Vessels.
A communication from SYLVESTER P. Denison, of Brooklyn, State of New York,
in the United States of America.
I RICHARD SYDNEY BROWNLOW of Canning Works Manchester in the County
of Lancaster, Filter Manufacturer 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:-
This invention relates to an improved dropper-spout for oil cans or other vessels
by means of which fluid is delivered from the can or other vessel, or reservoir in
which it may be contained in drops or regulated quantities.
The invention will be readily understood from the following description on
reference to the annexed sheet of drawings on which
Fig. 1 represents a vertical sectional view of the dropper spout complete.
Fig. 2 is an elevation of the tube hereafter described with the upper washer or
packing which is also shown detached in plan at Fig. 4.
Fig. 3 is a plan view of the lower end of the cylinder hereafter described, and
Fig. 5 a plan view showing the form of the lower or second washer and the metal
plate, to which the lower end of the tube (Fig. 2) is attached.
Fig. 6 shows my improved dropper spout attached to a small portable or pocket
oil can, but I would here remark that it may be attached to the mouth of any
vessel, it being available for both large and small ones.
The invention consists principally of a hollow cylinder a having a base or bottom b
on which rests a spiral spring e. The upper end of the cylinder a is provided with
a circular flange d and a screw at a' by means of which it can be attached to a
suitably screwed mouth or aperture in the oil can or other vessel as shown for
example at Fig. 6. The base has a central hole 6' through it on each side of which
there is another smaller hole 12.
Through the central hole in the base b extends a tube e which also passes
upwards through the cylinder and is constructed to form at one end e¹ a spout and
at the other slotted at 2 to receive the fluid from the can or reservoir.
This tube carries a drip cup e above the cylinder a and a cylindrical piston e*
working in the latter and packed by a suitable washer f.
The slotted lower end of the tube passes through a hole in this washer then
through two crescent shaped holes seen at Fig. 5 in a second washer made of flexible
material and is then passed through similar holes in a metallic plate / beneath, to
which it is secured by bending or rivetting its ends and soldering or otherwise.
The slot in the tube e is made of sufficient length to extend above the flexible
washer and the latter is kept in contact with the bottom of the cylinder a so as
to close the two small holes above named, by the pressure of the spiral spring c
forcing the piston e¹ and the tube e upwards.
When this dropper spout is applied to any can or vessel containing oil or fluid its
manner of operating is as follows:-
:―
On reversing the reservoir and pressing the drip cupe³ inwards the slotted part of
the tube e is driven beyond the hole in the bottom of the cylinder a and the
flexible washer g or valve is thus withdrawn from the bottom of the cylinder and
the small holes 62 are thus uncovered exposing the slotted portion of the tube e and
permitting the fluid from the reservoir to enter the tube and from this point it is
driven to the end of the tube or spout e¹ in quantities regulated by the extent and
frequency of the depression which the piston undergoes.
After each depression of the piston it is immediately returned to its original
position by the action of the spring c and the openings 62 are closed again by the
flexible washer or valve g.
To prevent the accidental depression of the piston an upright is sometimes

page_text: height as to come under the edge of the drip cup e. A notch i is cut out of the
Hange of the cylinder and this upright is made of such a
edge of the drip cup e³ see Figs. 1 and 2 at any place sufficiently wide to allow the
upright to pass, and when the dropper spout is not in use it can be locked by
5 slightly rotating the same so as to bring the solid portion of the rim above the
upright as seen at Fig. 1, thus preventing any accidental depression of the said
drip cup.
In cases where the reservoir or vessel is provided with a cover (as shown dotted
at Fig. 6,) the notch i and upright k will not be required.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. A dropper spout which consists of a movable tube furnished with suitable
packing and slotted at its lower extremity and passing through the base of a
cylinder provided with a spring and in its base with vent holes, said tube having
attached to its lower end a plate and pliant washer and at the other end a flange
and screw or other means for attaching it to a reservoir and a drip cup, sub-
stantially as described, and for the purposes set forth.
2. A dropper-spout which consists of a movable tube furrished with suitable
packing and slotted at its lower extremity and passing through the base of a
cylinder provided with a spring, and in its base with vent holes, said tube having
attached to its lower end a plate and pliant washer and at the other end a flange
and screw or other means for attaching it to a reservoir, and a drip cup capable of
being rotated and notched at its edge, in combination with a permanent upright,
liding in said notch, substantially as described and for the purposes set forth.
Dated this 7th day of August 1891.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Annlicent