Gas Heating Appliance for Upright Boilers.
Year: 1894

page_text: Date of Application, 17th May, 1894-Accepted, 7th July, 1894
CUTE LEIE OF PUTTALION.
Gas Heating Appliance for Upright Boilers.
A communication from abroad by THE STEWART MANUFACTURING COMPANY, of
Avenue A, corner of Emmett Street, Newark, in the County of Essex, State
of New Jersey, United States of America, Manufacturers.
I, JOHN CORRY FELL, of the Firm of Fell and Wilding, of 1 Queen Victoria
Street, in the City of London, Chartered Patent Agent, 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:―
The present improvement is specially applicable to the hot water boilers which
are commonly connected with the water back of a stove or range, but may be
applied to other hot water boilers.
The invention consists partly in a non-conducting jacket forming a flue around
the outside of the boiler, and partly in a series of independent gas burners applied
below the boiler to heat the water therein directly.
In the annexed drawing,
Fig. 1 is an elevation of a range boiler with such fixtures applied thereto;
Fig. 2 is an elevation of the same upon a larger scale with the middle portion of
the boiler and jacket broken away, the fixtures being partly in section in front of
the center line where hatched;
Fig. 3 is an elevation of the boiler stand showing the casing in section and the
supporting arms in edge view.
Fig. 4 is a sectional plan of the stand and gas fixtures on line x x in Fig. 3;
Fig. 5 a section of the column b on line y y; and
Fig. 6 an edge view of the inner periphery of the ring d.
The stand comprises the foot a, central column b, and two arms e carrying the
ring d with vertical flange e projected upward from its outer edge. Four radial
ribs fare provided upon the top of the ring, and blocks g with shoulders hat their
outer ends are fitted by a groove in the bottom to the top of such ribs. The
boiler i is set upon the blocks 9 within the shoulders h, and the same stand can be
adapted to center different sized boilers thereon by using blocks with shoulders of
different dimensions.
The jacket consists in an outer shell and inner shell k formed of sheet metal,
with an intermediate lining of asbestos; the shells being centered one within the
other at the bottom by a tapering ring m having an inwardly projecting flange m
perforated for bolts n and at the top by means of a tapering ring m³ formed upon
the under side of the perforated cover o applied to the top of the jacket. The
bolts n are extended from the cover inside of the shell through the holes in the
flange m³, beneath which are applied the nuts which clamp the two rings together
upon the ends of the jacket. The flange m' is formed with a collar m³ to embrace
the flange e, which adjusts the jacket upon the stand concentric with the boiler.
The water pipes p p¹ are extended from the top of the boiler through the cover
to make connection with the pipes and faucets from which the heated water would
be drawn; and the feed supply pipe z is shown extended from the bottom of the
boiler in the usual manner adjacent to the central burner. The pipe is also
extended from the side of the boiler through the jacket to complete the circuit
through the water back W when desired.
Five burners are shown applied beneath the boiler, each having a cylindrical
casing 9 with screen r near the top, through which a mixture of air and gas is
discharged and ignited above the screen.
The stand column is made tubular and one of the casings q is held removably
9.

page_text: within the same by a detachable clamp q' secured by bolts q' to lugs & projected
from the column at the lower ends of the arms c. The foot a is provided with
apertures a¹ to admit air to the central burner. The other four tubes or casings
are supported around the central burner at equal distance therefrom by two skeleton
frames t t which are made in halves to facilitate their removal, and are secured by
bolts to the arms c and lugs s.
The main supply pipe P is extended through the column from the rear, just
below the casing 9 of the central burner, and a header Q is extended across the
front end of the same and provided with five connections w containing cocks w
from which pipes are extended to the bottom of each casing. The pipes vare
secured by suitable hangers to the frame t', and the casings q rest upon such pipes
and are supplied each from a jet hole formed in the top of the pipe v.
The whole or any desired number of the burners may be first operated to bring
the water to the required temperature, and all the burners except the center one
may then be cut off by closing their respective cocks ; the temperature being
thereafter maintained by the use of such single burner. It will be observed that
the products of combustion rise from the burners into contact with the bottom of
the boiler and the pipe z, and thence pass upwardly within the jacket in contact
with the boiler; being retarded sufficiently in their ascent to give out the greater
part of their heat to the boiler by the perforated cover o having its holes o² of a
size suitable for the passage of the gases at the required speed. The jacket
further operates to prevent loss of heat from the boiler by radiation.
In the employment of the present improvement, the boiler may be used
independently of the range and without disturbing the connections to the water
back the gas burners operating to heat the water quickly and to maintain the
temperature of the water at very slight expense.
It will be seen that the introduction of the gas supply pipe Pacross the column b
just below the open-mouthed central burner furnishes a means of utilizing the
downward radiation of heat through the burner in heating such supply pipe ;
whereby the gas becomes heated in its passage through the same before entering
the burners and its effectiveness thus increased.
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 stand for upright heating boilers provided with gas burners to beat the
boiler, a ring with projections to sustain the boiler above the same, and a jacket
forming a flue about the boiler and supported upon the ring, as set forth.
2. A stand for upright heating boilers provided with gas burners to heat the
boiler, a ring with flange having a jacket centered thereon, and removable blocks
with shoulders supported upon the ring to center the boiler, as set forth.
3. A stand for heating boilers consisting in the foot a, column b, arms c and
ring d, and provided with a series of cylindrical burners qr, means for sustaining
the burners below the ring, and gas pipes extended to the several burners and
provided with separate cocks, as set forth.
4. A stand for heating boilers comprising the foot a, column b provided with
clamp, the arms e carrying ring d and skeleton frames tt', burners supported
within the clamp and the frames, and gas pipes extended to the several burners
and provided with separate cocks, as set forth.
5. A stand for heating boilers comprising the foot a, column 6 provided with
clamp q', the arms c carrying ring d and skeleton. frames tt, burners supported
within the clamp and the frames, a header Q at one side of the column 6 and
connected with the several burners by gas pipes v, and a supply pipe P passing
through the column beneath the central burner, as and for the purpose set forth.
6. A duplex jacket for heating boilers comprising inner and outer sheet metal
shells, and rings m m fitted between the shells and drawn together by bolts n, as
herein set forth.

page_text: 7. A duplex jacket for heating boilers comprising inner and outer sheet metal
shells, a cover provided with tapering ring m³, the lower ring m having inwardly
projecting flange m', a non-conducting lining between the shells, and bolts to clamp
the rings together, as herein set forth.
8. A stand for upright heating boilers provided with gas burners to heat the
boiler, a duplex jacket with metallic rings at the top and bottom connected by
bolts n and centered upon the supporting ring for the boiler, and a cover upon the
jacket with holes o² adapted to retard the exit of the heated air and gases from the
jacket, substantially as herein set forth.
Dated this, 17th day of Mov 1894
FELL & WILDING,
Agents for the Applicant.