IMPROVED VESSELS FOR HEATING LIQUIDS FOR DOMESTIC AND SIMILAR PURPOSES
Year: 1878

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine, Lake,
& Co., Patent Agents, Southampton Buildings, London, for the Invention of
"IMPROVED VESSELS FOR HEATING LIQUIDS FOR DOMESTIC AND SIMILAR
PURPOSES." A communication from abroad by William Henry Bennett, of the
City and State of New York, United States of America.
PROVISIONAL SPECIFICATION left by the said William Robert Lake at the
Office of the Commissioners of Patents on the 25th September 1878.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London. "IMPROVED VESSELS FOR HEATING LIQUIDS
FOR DOMESTIC AND SIMILAR PURPOSES." [A communication from abroad by
William Henry Bennett, of the City and State of New York, United States of
America.]
This Invention relates chiefly to pots, kettles, boilers, and other kitchen utensils
in which water and other liquids are heated, it being desirable that the same
shall be heated to the boiling point in the shortest possible time. In order to
accomplish this result various constructions have been resorted to which have to
some extent effected the same, but the said constructions are cumbersome and
expensive, and so divide or subdivide the space within the vessel as to render the
same inadequate to hold the required amount of liquid, or to conveniently contain
in addition thereto substances to be boiled in said liquid, without greatly distorting
the proportions of the vessel.
The object of this Invention is to provide such vessels of ordinary size and
proportions with an improved construction of bottom, which greatly increases the
heating surface of the vessel, while its cubical interior capacity is not materially

page_text: abridged, the said bottom enabling the contents of the said vessel to be quickly and
economically heated or boiled.
To that end my Invention consists of a vessel, the metal bottom whereof is
provided with a chamber projecting into the interior of the body of the vessel,
which bottom and chamber are formed of a continuous piece of metal, thus
providing a bearing surface, and a hollow chamber projecting therefrom into the
interior of the body of the vessel, which said chamber being directly exposed to the
fire quickly communicates the heat to the fluid contents of the vessel which
surround it, and speedily brings the same to the boiling point, thereby greatly
economizing both time and fuel in boiling a given quantity of liquid.
This structure of the bottom permits the construction of the vessel at a cost not
greatly exceeding those of common form, and much superior thereto.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by.
the said Willian Robert Lake in the Great Seal Patent Office on the 24th
March 1879.
"6
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London. IMPROVED VESSELS FOR HEATING LIQUIDS
FOR DOMESTIC AND SIMILAR PURPOSES." A communication from abroad by
William Henry Bennett, of the City and State of New York, United States of
America.
This Invention relates principally to pots, kettles, boilers, and other kitchen
utensils in which water and other liquids are heated, and it is desirable that the
same shall be heated to the boiling point in the shortest possible time. In order to
accomplish this, various constructions have been resorted to which have to some
extent accomplished the desired result, but such constructions are cumbersome and
expensive,. and so divide the space within the vessel as to render the same
inadequate to hold the required amount of liquid, or to contain conveniently in
addition thereto substances to be boiled in said liquid without greatly distorting
the proportions of the vessel.
The object of my Invention is to provide such vessels of ordinary size and
proportions with an improved construction of bottom, which greatly increases the
heating surface of the vessel, while its cubical interior capacity is not materially
abridged, the said bottom enabling the contents of said vessel to be quickly and
conveniently heated or boiled. To that end my Invention consists of a vessel, the
metal bottom whereof is provided with a chamber projecting into the interior of
the body of the vessel, which bottom and chamber are formed of a continuous piece
of metal, thus providing a bearing surface and a hollow chamber projecting there-
from into the interior of the body of the vessel, which said chamber being directly
exposed to the fire quickly communicates the heat to the fluid contents of the
vessel which surround it, and speedily brings the same to the boiling point, thereby
greatly economizing both time and fuel in boiling a given quantity of fluid. And
this structure of the bottom permits the construction of the vessel at a cost not
greatly exceeding those of common construction, while it provides one much
superior thereto.
In order that the said Invention may be fully understood, I shall now proceed
more particularly to describe the same, and for that purpose I shall refer to the
several Figures in the Sheet of Drawings hereunto annexed, the same letters of
reference indicate corresponding parts throughout both the Figures.
Fig. 1 of the Drawings represents one mode of construction of the bottom, and
Fig. 2, a modification thereof.
In the Drawing B represents the body of a vessel designed for use in heating
liquids, and although a teakettle is shewn in the Drawing, my Invention (which is
contained in the parts shown in the section) may be applied to any vessel, as for
instance, to a coffee pot, a boiling pot, or other similar vessel in which a boiling
operation is to be carried on. The bottom is formed from metal, preferably from sheet
metal, which may be swaged, spun, struck up, or otherwise up-set, and so shaped as
to provide a flat portion A and a hollow projecting chamber F. The bottom thus
constructed is combined with the body B by any suitable means, and thus provides
the vessel with a bottom having a bearing portion A adapted to rest upon a stove or
other heating surface, and a hollow chamber F extending into the interior of the
body of the vessel. And the bottom may be given such a shape as will provide
the depending ring illustrated by the parts B and C, whereby the vessel is adapted
to enter a stove plate hole, and thus be supported directly over the fire."
preferred, this ring may be constituted by the part B when made to connect with
the bottom point of the chamber F, thus omitting the part C, as shewn in Fig. 2.
If

page_text: The interior surface of the chamber F affords a large area of heating surface
which is subjected to the direct action of the fire, and thus the fluid contents of the
vessel which surround this chamber on all sides are caused to be quickly affected
by the heat and speedily brought to the boiling point, thus enabling one to
economize both time and fuel in boiling a given quantity of liquid.
Having now described and particularly ascertained the nature of the said
Invention, and the manner in which the same is or may be carried into effect,
I observe in conclusion that what I consider novel and original in the said
improvements, and therefore claim as my Invention is,―
- A vessel for heating liquids, the bottom whereof consists of a plate of metal
formed so as to provide the bearing surface A and hollow chamber F projecting
therefrom into the interior of the body of the vessel, substantially as described.
:
(
In witness whereof, I, the said William Robert Lake, have hereunto set
my hand and seal, this Seventeenth day of March, in the year of our Lord
One thousand eight hundred and seventy-nine.