Heating Air for Laundry Drying Rooms and the like.
Year: 1886

page_text: .
Heating Air for Laundry Drying Rooms and the like.
HENRY PODGER Laundry Engineer Homesdale Road Bromley in the County of
Kent do hereby declare the nature of this invention to be as follows:-
The object of this Invention is to make or construct apparatus for heating air,
such apparatus consisting of a series of hollow fire bars or tubes suitably arranged
and placed in the furnace of an ordinary Steam Boiler, or other suitable furnace
or specially constructed furnace, and the air to be heated forced or driven through
the said apparatus by a fan or other means, and of adapting the same for Laundry
drying rooms, and for all purposes where large quantities of hot dry air may be
required.
The "specially constructed furnace." consists of two or more chambers connected
together by Tubes or hollow fire bars, and the air to be heated is driven or forced
through the chambers, or through the tubes or hollow fire, bars from one chamber
to another and from there into a drying room or closet.

page_text: Improv
Heating Air for Laundry Drying Rooms and the like.
HENRY PODGER Laundry Engineer Homesdale Road Bromley in the County of
Kent do hereby declare the nature of my invention for IMPROVEMENTS IN THE
MAKE AND CONSTRUCTION OF APPARATUS FOR HEATING AIR, and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement:-
The object of this invention is to make or construct apparatus for heating air,
such apparatus consisting of a series of hollow fire bars or tubes suitably arranged
and placed in the furnace of an ordinary steam boiler, or other suitable furnace,
or specially constructed furnace, and the air to be heated forced or driven through
the said apparatus by a fan or other means, and of adapting the same for Laundry
drying rooms, and the like, and other purposes where large quantities of hot dry
air may be required, and which I fully describe as follows-First, In adapting an
ordinary steam boiler for my purpose, I make a hollow bridge of cast iron, lined
on its face with fire bricks or build a bridge of fire. bricks or lumps, to which
I attach pipes on either side as in drawing Fig. 1., the air to be heated passes in
through a pipe or pipes under the furnace bars A, which pipe or pipes are made
tight by a flange or otherwise to the bridge B. the air is forced or driven through
these said pipes into the hollow bridge where it is heated, and is carried away by
similar pipes C, on the back or further side of the bridge, along the tube or flue
as shown and is continued to be heated through the entire length of such tubes.
Secondly. I use in the place of ordinary furnace bars, hollow furnace bars,
connected at the one end to a hollow dead plate or chamber B, and at the other end
to the hollow bridge D, as in drawing Fig. 2, and thence the air is conveyed in
suitable pipes E, as in drawing Fig. 1.
Thirdly. I pass the air through hollow fire bars or tubes, which I enclose in
a sealed chamber, as in drawing Fig. 3, the cold air being forced in at the inlet A,
and discharged as shown at C.
Fourthly. A specially constructed furnace consists of a recess or stove, Fig. 3,
and described as follows. Two four or more chambers connected together by
hollow bars or tubes, the air is forced into the chamber A, through the hollow bars
or tubes B into chamber A¹, up at right angles through casing or tubes into A³,
and then through hollow bars B₁ into A³, and so continue through as many
chambers and series of bars as may be desired.
Fifthly. I also construct a furnace in which the air passes first through hollow
bars or tubes and then into a chamber containing tubes, through which the fire or
heat passes as in drawing Fig. 4.
Sixthly. I also pass the air directly into a chamber containing tubes, through
which the fire or heat passes as also shown in Fig. 4.
Fig. 5, is a sectional plan of chambers A, and hollow fire bars B.
Fig. 6, is a plan of the tube plate as in drawing Fig. 4.

page_text: Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is,
That I heat air by means of passing it through hollow fire bars or tubes when
enclosed in a sealed chamber, stove or boiler furnace, as fully described, the air in
either case being forced or exhausted by a fan or other means, and of adapting the
same heated air for purposes of Laundry drying rooms and the like, and for all
purposes and kindred trades where hot air is required in the process of drying.
Dated this 26th day of November 1886.