Improvements in Heating Apparatus for Heating and Drying Chambers.
Year: 1892

page_text: Date of Application, 4th Aug., 1892
Complete Specification Left. 3rd May, 1893-Accepted, 17th June, 1893
PROVISIONAL SPECIFICATION.
Improvements in Heating Apparatus for Heating and Drying
Chambers.
I, ZEPHANIAH AUGUSTINE BERRY, of Albion Works, Regency Street,
Westminster, Engineer, do hereby declare the nature of this invention to be as
follows:-
According to my present invention I construct heating apparatus for heating or
drying chambers as follows. At one end of the chamber, below the floor thereof I
construct a furnace of any suitable arrangement, the horizontal flue of which
extends across the chamber below the floor and has a number of openings in its
roof opening into the floor. Over these openings are fitted inverted trough shaped
metal flues closed at both ends that extend parallel to each other along the whole
length of the chamber, and resting with their lower open ends upon a shallow
channel formed in the floor which is filled with sand so as to form an air tight joint
for the flues which at the same time have perfect freedom to expand and contract
on the floor. At the other end of the chamber these metal flues communicate with
openings in the floor leading into a flue communicating with a chimney. Thus the
hot combustion gases rising from the furnace into the one end of the metal trough
shaped flues above the floor, travel along these to the chimney flue at the other end,
thus giving off the greater portion of their heat to the metal flues which transmit
it by radiation to the drying or heating chamber.
These flues are by preference made with corrugated surfaces or with projecting
ribs for increasing the heat radiating surfaces thereof.
According to another modification I arrange one such trough shaped metal flue
transversely across the chamber over the furnace such flue having lateral openings,
to which are attached the one end of a series of longitudinal metal flues arranged
as before, or there may be another transverse metal flue at the other end com-
municating with the chimney, to which the other ends of the longitudinal flues are
attached. With this arrangement, the longitudinal metal flues may in some cases
be made tubular instead of trough shaped so as to afford still greater heat radiating
surfaces.
If either of the above arrangements are applied to heating or drying operations
in which a supply of hot air is required I arrange a chamber beneath the Hoor into
which the air enters either directly from the outside or through pipes that are led
through or in contact with the furnace, and I form narrow long openings in the
Hoor communicating with the air chamber, either in the spaces between the trough
shaped metal flues, or beneath the tubular flues, so that the air in rising through
the said openings will come in contact with the surfaces of the flues and will thus
become heated. In order to insure such contact I provide baffle plates over the.
air openings when these are situated between the flues, so as to deflect the entering
air and cause it to impinge upon the sides of the flues.
Dated this 4th day of August 1892.
ABEL & IMKAI,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Heating Apparatus for Heating and Drying
Chambers.
I, ZEPHANIAH AUGUSTINE BERRY, of Albion Works, Regency Street,
Westminster, 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 statement:-
According to my present invention I construct heating apparatus for heating or
drying chambers as follows. At one end of the chamber below the floor thereof I
construct a furnace of any suitable arrangement, the horizontal flue of which
extends across the chamber below the floor and has a number of openings in its roof
opening into the floor. Over these openings are fitted inverted trough shaped
metal flues closed at both ends that extend parallel to each other along the whole
length of the chamber, and resting with their lower open ends upon a shallow
channel formed in the floor which is filled with sand so as to form an air-tight joint
for the flues, which at the same time have perfect freedom to expand and contract
on the floor. At the other end of the chamber these metal flues communicate with
openings in the floor leading into a flue communicating with a chimney. Thus the
hot combustion gases rising from the furnace into the one end of the metal trough
shaped flues above the floor, travel along these to the chimney flue at the other end,
thus giving off the greater portion of their heat to the metal flues which transmit it
by radiation to the drying or heating chamber.
These flues are by preference made with corrugated surfaces or with projecting
ribs for increasing the heat radiating surfaces thereof.
According to another modification I arrange one such trough shaped metal flue
transversely across the chamber over the furnace such flue having lateral openings
to which are attached the one end of a series of longitudinal metal flues arranged
as before, or there may be another transverse metal flue at the other end com-
municating with the chimney, to which the other ends of the longitudinal flues are
.attached. With this arrangement, the longitudinal metal flues may in some cases
be made tubular instead of trough shaped so as to afford still greater heat radiating
surfaces.
If either of the above arrangements are applied to heating or drying operations
in which a supply of hot air is required, I arrange a chamber beneath the floor into
which the air enters either directly from the outside or through pipes that are led
through or in contact with the furnace, and I form narrow long openings in the
floor communicating with the air chamber, either in the spaces between the trough
shaped metal flues, or beneath the tubular flues, so that the air in rising through
the said openings will come in contact with the surfaces of the flues and will thus
become heated. In order to insure such contact I provide baffle plates over the air
openings when these are situated between the flues, so as to deflect the entering air
and cause it to impinge upon the sides of the flues.
The accompanying drawings shew by way of example one of the above described
arrangements for carrying out my invention,
Fig. 1 shews a longitudinal section, Fig. 2 a plan, Fig. 3 a cross section on
line XX Fig. 1 and Fig. 4 a plan of the brickwork, the metal flues having been
removed.
The drying chamber A has at one end a furnace B constructed beneath the
floor C, such furnace being in communication with the openings D formed in the
floor.
At the other end of the chainber are other openings E communicating with a
Alue F leading to the chimney. G are metal flues of an inverted trough shape
resting on the floor and extending from the openings D to the openings E, the two
ends being closed by plates so that the flames and hot gases rising from the furnace

page_text: through the openings D, pass along through the several flues G to the openings E,
and thence through the flue F to the chimney.
The trough shaped flues G are by preference imbedded with their lower ends in
a layer of sand laid in the recessed parts C' of the floor, so as to form an air tight
joint therewith.
In the spaces C¹ of the floor intervening between the flues G are formed other
openings H that communicate with a chamber I below the floor into which the
outer air is admitted through openings in the side walls of the building, and
rectangular metal nozzles J project up a certain height from the openings H and
are provided at top with deflecting shields K. Thus the external air entering the
chamber A through the nozzles J, is deflected by the shields K against the heated
surfaces of the flues G and becoming leated thereby, rises up into the chamber for
heating or drying the woven fabrics or other objects therein; such objects may be
hung upon frames or lines or be laid upon open floors racks or trays, above the
Alues G, according to the nature thereof.
The metal flues G may be corrugated as shewn, or ribbed or otherwise formed so
as to offer a large amount of heat radiating surfaces.
Instead of being of a trough shape throughout the parts extending between the
opening D and E may be made tubular; also, a metal flue such as G may extend
across the chamber over the furnace B, and from this other flues may extend
longitudinally to the openings E, where they may either communicate directly
with these, or there may be another transverse metal flue over the openings E to
which the longitudinal flues are connected. The above modifications are shown at
the part section Fig. 5.
In some cases, such as where the drying chambers are of considerable length,
the furnace may be arranged at the middle of the length, and the flues G be made
to extend from it to each end, where they communicate with chimney flues; or
again, there may be a furnace provided at each end with sets of flues G extending
from each furnace to the middle, where they communicate with a common chimney
flue.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. Heating apparatus for heating and drying chambers, consisting of a furnace
or furnaces arranged at one or more points of the chamber below a floor and
communicating with the one end of a number of raised metal flues arranged along
the floor and communicating at the other end with a chimney flue, so that the hot
combustion gases pass from the furnace through such raised metal flues to the
chimney and the heat is consequently radiated from the said flues into the chamber,
substantially as described.
2. In heating apparatus such as is referred to in the first claim, constructing the
metal flues of an inverted trough shape resting upon the floor and forming an
air-tight joint therewith by means of sand luting, substantially as described.
3. In heating apparatus such as is referred to in the preceding claims, arranging
the metal flues of a trough shaped section G with their one end over openings D
communicating with the furnace, and with their other end over openings E
communicating with a chimney flue, openings H being provided in the floor between
the flues G for the entrance of a supply of air which becomes heated by contact
with the flues G, substantially as described.
Dadd
SM... 1902
ABEL & IMRAY,
Agents for the Applicant.