Improvements in Hot Closets or ovens.
Year: 1897

page_text: Date of Application, 19th Oct., 1897
Complete Specification Left, 19th July, 1898-Accepted, 3rd Sept.,
1898-
Improvements in Hot Closets or ovens.
I, JAMES KEITH, Assoc. M. Inst. C.E., of 27, Farringdon Avenue, in the City,
of London, Gas, Hydraulic, Heating and Ventilating Engineer, do hereby declare
the nature of this invention to be as follows:-
This invention relates to hot closets or ovens such as are used for heating plates
and keeping warm cooked dishes and for other purposes, and it has for its object
to provide such a heating chamber constructed mainly of suitably connected and
enclosed sections of steam heated or hot water radiators.
The radiators employed in the construction of the improved hot closet are
preferably of the kind described in the Specification of Letters Patent granted
to me No. 19233 of 1894. The ends of the hot closet are formed by one, two or
more radiator sections having two, three or more tubular water columns of the full
height of the closet and these are connected by a number of like radiator sections
of much less height extending across the bottom part of the closet. The end
radiator sections alone may be furnished with feet to rest on the floor and the
The radiator
connecting sections are thus raised slightly above the floor level.
sections, excepting a section at each end exposed for purposes of ornamentation,
are enclosed by a thin casing of cast iron or sheet metal having a flat or arched
roof and front and back panels fitted with doors, and extending downwards to
near the floor level, an air space or oven being thus formed between the short
radiator sections and the roof which is heated by radiation from the steam or
hot water circulated through the sections. This space is fitted with shelves,
plate racks or the like resting on the short section and on ledges formed on the
inner sides of the end radiators; and to provide additional supports as well as to
increase and equalize the heating surface and secure the radiation of heat down
on the top of the plates, and cooked dishes, etc. as well as from below, cross tubes
connecting the end radiators may be fitted to extend across the oven space at about
the middle and top. The several sections of the radiators are connected together
by tubular nipples, which may be screwed or expanded into the sections, so as
to provide longitudinal water ways or steam passages for the circulation of the
heating fluid. By the construction described the air entering the hot closet or
oven space passes upward from the floor level between the tubes of the short
intermediate sections fitted between the end radiators and vertically up between
To ensure
the water columns of the end radiators, and cold air is excluded.
retention of the heat the cast iron or thin plate casing or panel may have a lining
of wood between the metal casing or panels and the sections or heating surfaces
and the doors at front and the back panels may be lined or covered with asbestos
or other non-conducting material.
200
WALLACE FAIRWEATHER,
Of the Firm of Cruikshank & Fairweather,
Chartered Patent Agents,
Saint Vincent Street, Glasgow, Agent for the Applicant.

page_text: Improvements in Hot Closets or Ovens.
.
I, JAMES KEITH, Assoc. M. Inst. C.E., of 27, Farringdon Avenue, in the City
of London, Gas, Hydraulic, Heating and Ventilating Engineer, 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 state-
ment:
This invention relates to hot closets or ovens such as are used for heating plates
and keeping warm cooked dishes and for other purposes, and it has for. its object
to provide such a heating chamber constructed mainly of suitably connected and
enclosed sections of steam heated or hot water radiators.
The invention is illustrated by the accompanying drawings, Figure 1 being a
part elevation and part longitudinal vertical section, Figure 2 a transverse vertical
section, Figure 3 a horizontal section, and Figure 4 a longitudinal elevation of
the improved hot closet or oven. Figure 5 is an elevation of part of the oven.
The radiators employed in the construction of the improved hot closet are
preferably of the kind described in the Specification of Letters Patent granted
to me No. 19233 of 1894. The ends of the hot closet are formed by one, two or
more radiator sections A. having two, three or more tubular water columns of the
full height of the closet; three water columns being shown on the drawings, and
these are connected by a number of like radiator sections B of much less height
extending across the bottom part of the closet. The end radiator sections A
alone may be furnished with feet A¹ to rest on the floor and the connecting
sections B are thus raised slightly above the floor level. The radiator sections A
excepting a section at each end exposed for purposes of ornamentation, are
enclosed by a thin casing C of cast iron or sheet metal having a flat or arched roof
and front and back panels fitted with doors C², and extending downwards to near
the floor level, an air space or oven D being thus formed between the short radiator
sections B and the roof C¹ which is heated by radiation from the steam or hot
water circulated through the sections A and B. This space D is fitted with
shelves E, plate racks or the like resting on the short section B and on ledges F
formed on the inner sides of the end radiators; and to provide additional supports
as well as to increase and equalize the heating surface and secure the radiation
of heat down on the top of the plates, and cooked dishes, etc., as well as from below,
cross tubes G connecting the end radiators A may be fitted to extend across the
oven space D at about the middle and top. These cross tubes G may be connected
as shewn to the middle column of the radiators A at each end of the oven, but as
an alternative the middle section of the cross tubes G may be connected at one
end of the oven only to the two outer water columns of the inner radiator, the con-
nections being made at slightly different levels to ensure proper circulation, the
section of the cross tubes G at the top being preferably connected at both ends as
shown in the drawings. The several sections of the radiators A and B are con-
nected together by tubular nipples H, which may be screwed or expanded into the
sections, so as to provide longitudinal water ways or steam passages for the circula-
tion of the heating fluid. By the construction described the air entering the hot
closet or oven space D passes upward from the floor level between the tubes of
the short intermediate sections B fitted between the end radiators A and vertically
up between the water columns of the end radiators A, and cold air is excluded.
To ensure retention of the heat the cast iron or thin plate casing or panel C may
have a lining of wood between the metal casing or panels and the sections or
heating surfaces A, B, and the doors C at front and the back panels may be lined
or covered with asbestos or other non-conducting material..

page_text: 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 hot closet or oven constructed and arranged substantially as described.
2. A hot closet or oven comprising a series of steam or hot water radiator
sections extending the full height of the oven and a series of like sections of less
height extending between and connecting the bottoms of the larger radiators so
as to form an oven or space, or two or more ovens or spaces between the shorter
radiators and a series of cross tubes connecting. the upper ends of the larger
radiators within which spaces or ovens shelves may be supported, the whole or a
portion only of the radiators being enclosed by a metal casing provided with doors
to control the admission of air, substantially as described.
1
1011 ,
T 1
1000
WALLACE FAIRWEATHER,
Of the Firm of Cruikshank & Fairweather,
Chartered Patent Agents,
62, Saint Vincent Street, Glasgow, Agent for the Applicant.