Year: 1888

page_text: Date of Application, 11th Feb., 1888
Specification Accepted, 16th Mar., 1888
I, JOSEPH LANE of No. 2 Argyle Avenue, in the City of Montreal, District of
Montreal, Province of Quebec, Canada, Mercantile Agent 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 has reference to an improved construction of the bottoms, or surfaces
of vessels either open or inclosed, for heating fluids in; and while more particularly
adapted to open vessels, such as pots, pans, sauce pans &c., and other open vessels,
that are placed over a fire, yet it may also be applied to inclosed or air-tight
vessels.
.
The object of my invention is to extend the heating surface in such a manner that
no obstruction will be given to the proper cleaning of the vessel.
I am aware that vessels have been formed with corrugated surfaces for the purpose
of obtaining an extended heating surface. These vessels have not found favor, with
the public, on account of the difficulty found in keeping them clean especially at the
outer angles. In my invention I obtain a considerably extended surface with outer
angles so situated that they can be readily cleansed. My invention also provides
suitable channels for the current of air over the fire and products of combustion to
pass through.
My invention consists in forming in the bottom of the vessel, (that is to say, that
part of it which is acted upon by the fire) intersecting or radiating channels, which
give a considerably extended heating surface and in whichever direction the current
of air and products of combustion travel over the top of the fire, and in whatever
position the channels are placed, the said channels are suitably situated for the
draught of air and products of combustion to travel through.
In the drawings hereunto annexed similar letters of reference indicate like parts,
and-
Figure 1, is an elevation of a vessel embodying my invention.-Figure 2 is an
isometrical view of the bottom part, inverted, of the vessel shewn in Fig. 1. Figs. 3, 4,
5 and 6, are plans of the bottom of the vessel.

page_text: As shewn in the drawings my invention is represented in connection with a cylin-
drical vessel, but it will be readily understood that it may also be equally well applied
to angular vessels.
Letter a,
is the bottom of the vessel exposed to the fire. In this are formed
intersecting or radiating channels b, and c. dis any desired body of the vessel, and e,
is a shoulder which may, or may not, be formed, as desired, for the vessel to rest
upon.
If the channels are made with sides f, and g, each equal in width to the distance
from the angle 1, to the angle 2, it is obvious that for all that portion of the bottom
occupied by the said channels, the amount of surface exposed to the heat of the
fire, is very nearly doubled.
By having the flat surfaces h, the angles i, and k, are situated sufficiently far
apart so that there will not be any obstruction to the proper cleaning of them.
When the vessel is placed over the fire, with the draught and products of combus-
tion passing in the direction of the arrow 1, situated between Figs. 3 and 4, and the
channels b, and c, situated in the position shewn in Fig. 3, in relation thereto; the
draught will enter as indicated by the arrow 2, in the channel b; part of it will eddy
off into the two branches of the channel c, as indicated by the arrows 3, 3, and the
remainder will pass off as indicated by the arrow 4; thus keeping the whole of the
surfaces highly effective heating surfaces.
If the vessel is placed in relation to the draught indicated by the arrow 1, as shown
in Fig. 4, then the draught will travel through the channels b, and c, as indicated by
the arrows 5, 5, and 6, 6. Thus it will be seen that in whatever position the channels
are placed in relation to the direction of the draught, the surfaces of the channels
will be highly effective heating surfaces.
Although as above described, and shewn in the drawings, only two channels b, and e
are mentioned, yet a greater number may be used if desired, depending principally on
the size of the bottom of the vessel, and the size of the channels in relation
thereto.
C, these may also be
Although as above described there are two channels b, and
taken to be four channels radiating from the centre of the bottom a, as shewn in
Figs. 3 and 4. My invention may be also carried into effect by making the bottom a,
with a greater or less number of channels, all radiating from, or about the centre of
the bottom a, as shewn in Figs. 5 and 6.
Having now particularly described and ascertained the nature of this invention and
in what manner the same is to be performed, I declare that what I claim is :-
1. As an improved article of manufacture, a vessel provided in its bottom with
intersecting channels, substantially as described.
2. As an improved article of manufacture, a vessel provided in its bottom with
radiating channels, substantially as described.
3. The combination in a vessel for heating fluids in, of the channels, and flat
surfaces h, substantially as described.
Dated this 10th day of February 1888s
ABEL & IMRAY,
Agents for the Applicant.