US1596092A

US1596092A - Radiating shield for hot-air furnaces

Info

Publication number: US1596092A
Application number: US47144A
Authority: US
Inventors: Charles C Frautz
Original assignee: ANDES RANGE AND FURNACE CORP
Current assignee: ANDES RANGE AND FURNACE Corp
Priority date: 1925-07-30
Filing date: 1925-07-30
Publication date: 1926-08-17
Anticipated expiration: 1943-08-17

Description

v C. C. FRAUTZ RADIAIING SHIELD FOR HOT AIR FURNACES Aug. 17, 1926. 1,596,092

Filed July 50, 1925 v J2 P ea GR B F M W nace and Patented Aug. 17, 1926.

UNITED STATES PATENT 0mm.

Oil-TABLES C. FRA'UTZ, OF GENEVA, NEV I YORK, ASSIGNOR TO ANDES RANGE AND'FUR- NACE CORPORATION, OF GENEVA, 'NEW YORK, A CORIORATION OF NEW YORK. 1

RADIATING SHIELD FOR HOT-AIR FURNACES.

Application filed Jul so, 1925. serialnaaai ii.

The object of this invention is to provide a radiating shield intermediate of the fire pot and outer casing of a hot air furbetween the radiator flues thereof for the purpose of increasing the heating eflic'iency 0f the furnace.

This and other objects of this invention will be fully illustrated in the drawing, described in the specification and pointed out in the claims at the end thereof.

In the accompanying drawing: Figure 1 is a vertical sectional view of the furnace, the section being taken on the line 1 1 of Figure 2.

Figure 2 is ,a horizontal sectional view of the furnace, the section being taken on the line 2 2 of Figure 1. V

Figure 3 is a detail perspective view .of the double radiator provided in the furnace and the radiating shield mounted between them. V

In the several figures of the drawing, like reference numerals indicate like parts.

The radiating shield forming the subject matter of my present invention is adapted for use in hot air furnaces especially in types having a radiator built in two sections, one above the other surroundin .the sides and rear of the fire box.

uch a furnace is illustrated in the figures of the drawing in which reference numeral 1 indicates the fire box of the furnace, 2 the shell of the furnace and 3 the radiator suitably supported on the fire box 1 and located between it and the inside of the shell 2. The shell or casing 2 of the furnace has suitable cold air inlets 4, 4 through which the air is admitted into the casing to be heated therein by the fire pot and the radiator surrounding it. The heated air passes out through the

risers

5, 5 in the top of the casing where it is distributed into the different sections of the house.

The radiator 3 of this furnace is made up in two horizontal U shaped sections located one above the other. The two sections are connected witheach other at their ends by the vertical fiues 6 and '7. The upper section of the radiator is provided with an inlet 8 in the middle thereof which faces the inside of the yoke and connects to the outlet of the fire box 1 as illustrated in Figure 2. The hot gases or products of combustion thus pass first into the upper section of the radiator at the rear thereof where they are. divided and travel to the front end of the radiator through both sides thereof. From the front ends of the upper radiator sectionv the hot. gases orproductsof combustion pass down through the -ver-.

tical connecting fiues G and 7 into the front end of the lower radiator section where they again pass to the rear and pass out united through the outlet 9 at the rear of the lower radiator section. I

The upper radiator section is illustrated with both an inlet 8 and an outlet 10. The outlet, however,'is ordinarily closed by the damper 11, and is'only used when a strong and quick draft is desired from the fire pot into the chimney when starting the fire in thefire pot. No heating'effect or very little is secured when the hot gases are allowed to escape directly into the chimney without first passing through the radiator sections. This of course is only the case when the fire is started and as soon as it is started the damper 11 is closed so that the gases are forced to pass through the radiator sections as above pointed out. The sections of the radiator present a large radiating surface to the air passing through the casing of v the furnace. This radiating surface is not only materially increased by the

radiating shields

12 and 13 but heat radiated from the outside of the fire pot is held back from impinging directly against the inside of the casing where some of it would be lostin unnecessarily heating the furnace casing.

As illustrated in the figures of the drawing the

radiating shields

12 and 13 are mounted between the upper and lowersections of the radiator and close the space between them except for a short distance at the rear. Lugs 14:, 1 4; are provided on both the upper and lower sections of the radiator and the

radiating shields

12 and 13 which are preferably made up of sheet metal are suitably bolted thereto.

The central portion of the fire pot is thus surrounded by two casings, the outer casing 2 and the casing formed by the radiator 3 and the

radiating shields

12 and 13. This serves to conserve the heat radiated from the fire pot within the casing 2 and prevents its conduction and loss by the casing 2 s0 that a larger percentage of heat Will be absorbed by the air passing through the furnace.

I claim:

1. In a hot air furnace, the combination of a fire pot, a radiator comprising a pair of horizontal ducts located one above the other, surrounding said fire pot, a casing surrounding said radiator, a radiating shield connecting said pair of horizontal V ducts and forming a partition between said fire pot and said casing, said radiating shield being adapted to intercept the heat radiated from said fire pot and radiate some of the heat given off by the gases passing through said radiator.

2. In a hot air furnace having a fire pot and a casing surrounding it, a horizontal radiator encircling said fire pot and connected to said fire pot for the passage of hot gases from said fire pot, a radiating shield mounted on said radiator dividing the space between said fire pot and said 0. In a hot air furnace, the combination of afire pot and a casing surrounding it, 30

a horizontal upper and ahorizontal lower radiator encircling said fire pot, connecting ducts connecting said upper and lower radiator with each other and said fire pot to allow the passage of the hot gases therethru, a radiating shield connecting said upper and said lower radiator dividing the space between said fire pot'and said casing to make the heat radiating from said fire pot heat the space between said fir'e pot and said. radiating shield and the heat radiating from said radiators heat the space between said radiating shield and said casing.

In testimony whereof I aflig my signature.

CHARLES C. FRAUTZ.