Improvements in and relating to Portable Heating Boxes.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in and relating to Portable Heating Boxes.
I, HELENA ADELAIDE MURPHY, of 8, Osnaburgh Terrace, Albany Street, London,
do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in and relating to fire-boxes and the
especial object of my invention is to provide a fire-box adapted to be used by cab
and other drivers, although my improved fire-box may also be used as a foot-
warmer or a heater for rooms, railway compartments or other places.
In carrying my invention into practice I employ an outer box of suitable con-
struction, material, shape and dimensions which outer box is perforated at its
sides and is provided at one end with a preferably vertically sliding door or
shutter. Said outer box is adapted to receive a suitably constructed receptacle or
tray the sides of which receptacle are also perforated and I prefer to provide said
receptacle with a central partition-not necessarily extending for the whole length
of said receptacle-whereby said receptacle is divided into two portions in each
of which portions I place a block of charcoal combined with soda and lime or
other suitable slow burning fuel which block has previously been heated in any
suitable manner, or I may employ suitable fuel either in the form of blocks or
otherwise which will burn without such previous heating.
Having placed the fuel on the inner receptacle or tray I next insert said recep-
tacle in the outer box and close the sliding door and combustion will proceed, the
requisite atmospheric air being supplied through the perforations.
If desired the inside or the outside of the outer box may be covered by suitable
non-conducting material so that the heat contained and evolved within my
improved fire-box is not given off too freely, and the inner receptacle or tray may
also be made of or provided with non-conducting material upon which the fuel
rests, or placed over the fuel.
My improved fire-box is also provided with one or more suitable handles and I
wish it to be understood that I do not confine myself to any particular shape or
dimensions of the different parts constituting my invention.
Dated this 9th day of February 1897.

page_text: I, HELENA ADELAIDE MURPHY, of 9, Osnaburg Terrace, Albany Street, London,
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 relates to improvements in heating boxes and my invention con-
sists in the special construction and combination of parts as will be hereinafter
described.
In order that my invention may be readily understood reference is made to the
accompanying drawing in which--
Fig. 1 shows one form of my invention consisting of a case having a space at
each end for fuel and a central part having a horizontal partition in which
central part, plates or dishes are placed to be warmed.
Fig. 2 represents in perspective view the outer case of one form of my improved
fire box the sliding lid being shown at B.
Fig. 3 represents the tray which is adapted to be slid into the outer case
shown in Fig. 2..
Fig. 4. represents an alternative outer case, its lid being shown at E.
Fig. 5 represents the tray adapted to be slid into the outer case shown in
Fig. 4.
Fig. 6. represents. a further alternative in. which a box A is provided with
vertical partitions D so that fuel may be placed in the central part of said box
and a lid G adapted to cover the box A. the space at each side of the central part
being adapted to be used for warming food or other articles.
In carrying out my invention I make a case preferably of sheet metal say as
shown in Fig. 2 having apertures a and adapted to receive or to be closed by the
sliding lid B. I provide said outer case with a tray or the like C having a
partition D and apertures c the portion c¹ being adapted to receive a heated carbon
block and the portion ² being adapted to receive any. article say of food to be
warmed or to be kept warm. When the tray C has been provided in its portion c'
with the heated carbon block and the said tray is inserted into its outer case
shown in Fig. 1 food can be warmed in the portion and a kettle or other vessel
containing say water can be heated or kept hot by being stood on the top of said
outer vessel say over the portion of the inner tray containing the heated carbon
block said outer vessel being if desired perforated as shown. The apparatus
described with reference to Figs. 2 and 3, is especially adapted to be used at
table, but for general purposes such as heating appartments, greenhouses, railway
carriages or other places, I construct my improved heating box about as shown
in Figs. 4 and 5. Fig. 4 shows the outer case formed with perforations a the
said outer case being provided with a horizontally sliding lid E and said
outer case being also adapted to receive the tray shown in Fig. 5, said tray
having a partition D and perforations c the arrangement being such that if desired
a heated block of carbon may be placed on each side of the central partition or on
one side only in which latter event the other side can be utilized for the purpose
of heating food or other articles. This form of my improved heating box may
also be used as a foot warmer in which event I prefer to insert a sheet of asbestos
over the inner tray and immediately under the top part of the outer case.
The inner trays and the outer cases of the different forms of my improved
heater are preferably provided with handles F and I prefer to provide my
improved heating boxes with legs or the like i. Fig. 1, shows a box or case A
10:

page_text: having two vertical partitions p so that a space P to receive the fuel is left at each
end, the central part of the case-which is provided with a horizontal partition S--
is adapted to recive plates, dishes, food or other articles to be warmed or kept
warm and said central part and the side parts are closed by lids B.
Fig. 6, shows a further alternative. The case A is provided with vertical
partitions D so that fuel may be placed in the central part formed by said
partitions and food or other articles in the parts at each side of said central part.
A lid G covers the case A, said lid and case being formed with apertures a. This
form of my improved heater is preferably carried on a suitable stand.
Having now particularly described and ascertained the nature of my said
invention I declare that what I claim is: :―
1. A portable heating box consisting of an outer case and an inner tray con-
structed and arranged for the purposes and substantially as set forth.
2. A portable heating box consisting of a case having end spaces to receive fuel
and a central space to receive the article to be heated, all for the purposes and
constructed and arranged substantially as set forth.
3. A portable heating box consisting of a case having a central space to receive
the fuel and two side spaces to receive the articles to be heated the said case being
covered by a lid all for the purposes and constructed and arranged substantially
as described and illustrated.
HELENA ADELAIDE MURPHY.
By her Agents,
Horn, Son & Co.,
151, Strand, (next to Somerset House), London.