Improvements in Cans for Filling Lamps and for like purposes.
Year: 1897

page_text: Date of Application, 21st May, 1897-Accepted, 31st July, 1897
COMPLETE SPECIFICATION.
Improvements in Cans for Filling Lamps and for like purposes.
I, HEYMANN HIRSCH of 7, Wilhelmsplatz, Chemnitz, in Saxony Merchant, 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:-
In the use of liquids employed for burning purposes, and which are so very
much used at present, and which are of an explosive on explosion-causing
nature, it has been found to be a great disadvantage that the addition or pouring
of the liquid during the burning of the flame whether in the case of lamps, fire
places or the like, has been very dangerous, because the vessel employed for pour-
ing has not had any, or only unreliable appliances for preventing explosions.
This invention relates to a can of such a construction as to exclude explosion
by the striking back of the flame into the vessel when pouring the combustible
liquid into the open fire or flame.
This can also excludes the possibility of explosion caused by coming too near
the can with a naked light, or by knocking the can over accidentally. For this
purpose the pouring-in or filling opening by means of which the can is filled,
is hermetically closed, and also, if in any case the said closure should be removed
by accident, it is provided with a wire gauze insertion whereby penetration of the
flame into the interior of the vessel is excluded. The spout of the can or of the
vessel is made so narrow and is carried down to the bottom of the vessel in such a
manner that the liquid will be at the same level in the spout or pouring pipe as
in the can itself, because the said pouring pipe or spout acts always as a
communicating pipe with the interior of the can.
For this reason, air communication between the outer air and the air space
inside the can by means of this pipe is prevented. Consequently no flame can
ever pass through this spout into the interior hollow space of the vessel, which
hollow space is filled with air. An explosion is therefore not possible.
The new can is illustrated in the accompanying drawings. The filling passage
or union of the can a is provided internally and outwardly with screw threads.
The insertion piece which has its bottom & formed of a fine wire gauze is
screwed into the inside of the filling aperture 6. A removable screw cover e
with a jointing plate f serves to close the filling aperture air-tight. The narrow
pouring pipe either commences at the bottom of the vessel as shown in Figure 2
or it projects midway of the height of the vessel to the outside of the latter,
and one end of it, namely that which is in the can, extends almost down
to the bottom (Figure 3). Figure 4 shows an arrangement in which the pouring
pipe which extends almost down to the bottom in the inside of the can, passes
out only at the upper part of the vessel. The mouth of the spout or pouring pipe g
is provided with an automatically closing Hap h, which, when the can is held
straight or upright, at once closes the mouth of the spout. A strap i and a
handle serve to complete the can in the well-known manner.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is:-
—
Non-explosive safety-can characterised by a filling aperture capable of being
hermetically closed, and provided with an insertion c d of wire gauze, and a
pouring pipe or spout y which begins at a short distance above the bottom of the
can and has an automatically closing flap h, substantially as described and
shown.
Dated this 21st day of May, 1897.
ROBERT E. PHILLIPS, Assoc. M. Inst. C.E. M. I. Mech. E,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Associate Agent.