Improved Construction of Portable Water Cans or Vessels, to Facilitate the Prevention of the Water contained therein from Freezing.
Year: 1896

page_text: Date of Application, 25th Nov., 1896
Complete Specification Left, 25th Aug., 1897-Accepted, 23rd Oct., 1897
PROVISIONAL SPECIFICATION.
Improved Construction of Portable Water Cans or Vessels, to
Facilitate the Prevention of the Water contained therein from
Freezing.
I, WILLOUGHBY HAMILTON POWER, of No. 2 Pancras Lane, Queen Street, in the
City of London, Electrician, do hereby declare the nature of this invention to be
as follows:-
My invention relates to improved construction of portable water cans or vessels,
to facilitate the prevention of the water contained therein from freezing and
consists in a special construction of the sides or the bottom of such vessel, whereby
there is provided a surface which can be conveniently subjected to the heat of a
portable flame or other equivalent source of heat without it being necessary to in
any way modify the present use of such vessels.
The nature of the invention will be clearly understood from a description of the
embodiment of it in the body of a toilette can.
If a full toilette can stand in a bedroom or dressing room through the night in
very cold weather, it is not unlikely that the water in it will be frozen, more or
less by morning. The effect of the present invention upon the contents of such a
can are to prevent it being frozen, and, it may be, to even prevent its temperature
falling below a bearable coldness.
The invention includes two principal modifications. In one of these the surface
above mentioned is furnished by the bottom of an extension of the side of the
body, and in the other, by the top of a concavity or of an exaggerated indentation
in the bottom.
The extension may be either stamped out of the side of the can or attached
thereto in any suitable way. It stands out therefrom high enough to allow of a
small hand lamp or a night light or equivalent portable source of heat to stand
underneath.
The concavity may be a dome in the bottom of the can high enough to stand
over the portable source of heat above described. The stud's on the can bottom
will provide for the necessary ventilation.
The exaggerated indentation resembles the arched flue of the back boiler of a
kitchen range: its height is adjusted to just clear the source of heat, in the same
way as that of the extension or dome above described.
The invention includes any modification of the constructions above described,
for it is evident that the details of any one of them may be altered without
departing from the substance of the invention as that is stated in the first
paragraph hereof.
Dated this 25th day of November 1896.
PHILLIPS & LEIGH,
Agents for the Applicant.

page_text: other, and divides the bottom of the vessel into two portions e, f. Its edges are
made fast watertight to the adjacent edges of the respective sides of the body a
and portions e, f of the bottom above mentioned.
It is the top of the indentation 6' which provides the horizontal surface for the
flame to strike. The position of such top is, therefore, regulated by the same
considerations as that of the corresponding horizontal surface described with
reference to Figures 1 and 2.
Referring to Figure 5, the portable vessel is again represented as a toilette can.
a is the body of such vessel and ba is an indentation extending into the interior
of it. It is, in fact, a dome made fast along its bottom edge to that of a corres-
ponding hole in the bottom of the toilette can. The cross section of this
indentation 63 may be varied.
It is the top of the indentation 62 which provides the horizontal surface for the
flame to strike. The position of such top is, therefore, regulated by the same
considerations as that of the corresponding heat absorbing surface in the two
modifications already described. It must be explained however that when the
indentation occupies the position last described, a provision for ventilation is
necessary. The one illustrated consists of the well known series of studs g on the
said bottom. They hold the bottom of the can off the ground for a sufficient
distance to allow of the needful ventilation.
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. The combination of portable vessel and horizontal surface adapted to receive
heat from an external source and to transmit it to the liquid contained in the
said vessel.
2. The combination with the body of a portable vessel, of an outwardly reaching
extension of such body, presenting a surface against which a flame can strike and
standing at a suitable height for a portable source of heat capable of supplying
such flame, to stand underneath.
3. The combination with the body of a portable vessel, of an indentation
extending into the interior of the said body and presenting a surface against
which a flame can strike and standing at a suitable height for a portable source of
heat capable of supplying such flame to stand underneath.
Dated this 25th day of August 1897
PHILLIPS & LEIGH,
No. 22 Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.