US367255A

US367255A - Heater-grate

Info

Publication number: US367255A
Authority: US
Publication date: 1887-07-26
Anticipated expiration: 1904-07-26

Description

(No Model.) 2 Sheets-Sheet 1.

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HEATER GRATE. No. 367,255. Patented July 26, 1887.

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-. (No Model.) 2 Sheets-Sheet 2.

J. D. VANCE.

HEATER GRATE.

N0. 367,255. Patented July 26, 1887.

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A U ITED STATES PATENT OFFICE.

JOHN 11- VANCE, OF CINCINNATI, OHIO.

H EATER-G RATE.

SPECIFICATION forming part of Letters Patent 1 l'o.36'7,255 dated July 26, 1887.

Application filed December 28, 1886. Serial No. 222,826. (No model.)

T all whom it may concern:

' bleheating effect is had-first, the direct heat by radiation from the fuel in the fire-basket; second, the indirect heat from a current of air which is drawn from the outside of building, passed through certain heating-chambers surrounding the open grate, Where it is highly heated and discharged-into the room where the fire-place is located, or'in a room above it, through registers in the fireplace front or in the wall for the purpose; and it consists of certain. novel constructions and devices, all of which will be fully explained hereinafter.

In the accompanying drawings,Figure 1 rep resents a fire-place, partly in elevation and partly in section, containing my improvements; Fig. 2, a vertical transverse section on line as m of Fig.1; Fig. 3, a horizontal section on line y y of Fig. 1; Fig. 4, aperspective view of the cast-iron fire-place back; and Fig. 5, a verticaltransverse section of the upper portion, showing the construction of hot-air dampers or register-valves.

Similar letters of reference indicate similar parts. p

A. is thefire-place front; B, the fuel-basket, hung upon hooks b of the back 0, which is the grate-back proper and contains in a single casting the recessed back wall, 0, and recessed side walls, 0 0, hoodor deflector c, hooks b b, lateral flanges c", and throat a through which the productsof combustion of the fuel in the basket B are conducted to theflue E.

F is a base-plate upon which the back 0 is mounted; and G a top plate fitting upon the nozzle of the throat c" of the back.

His a jacket, preferably of galvanized sheetiron, riveted or otherwise attached to the flanges of plates Feud G andto the lateral flanges c of the back 0, the spaces between the jacket H, back 0, and front A constituting the air-heating chambers I, into which air from the outside of building is introduced through the flue or duct J.

space I at the top of the heater, while another damper or valve, M, controls the exit of heated air from the heatingchambers I to the duct N, which leads to the room over the grate.

The dampers L and M are connected by a link, Z, by means of which they are alternately opened and. closed simultaneously, or the opening of the damper L is accomplished by the closing of the damper M, and vice versa, or the heated air may be divided at will between the room in which the fire-place is located and the room above, in which the duct N debouches, both dampers being manipulated by the lever O, pivoted to the upper part of the front A. p

Referring to Fig. 5, the full lines show the register in the upper part of the front covered by the damper L and the duct N open,.while by dotted lines the duct N is shown covered by the damper M and the register-openings in the frontA open.

In all previous constructions of grates with which I am familiar the fire-place back 0 is of several plates bolted or riveted together, and, however tight such joints may be originally,

the slightest warping of the plates when sub jected'to heat permits of the passage of the 'products of combustion from the fire-place proper into the heating-chambers I,- and vice versa. When the gases of combustion pass into the heating-chambers and are discharged into the rooms to be heated, the atmosphere which the occupants breathe is charged with carbonic-acid gas, and when the heated air passes through the defective joints of the back into the fire-place proper the secondary effect of the heater is lost up the chimney, the heated air and gases of combustion flowing together through the throat c and up the flue E.

By my construction all joints in the back are avoided and a transfer of the hot gas of combustion to the heating-chamber I or a loss of heated air up the chimney is entirely pre- 'vented.

Referring to Fig. 5, is a damper hinged to the top of the throat c and actuated by the lever c, which turns on the pivot c and Q11- gages with the arm on the lower side of the damper-plate. By means of the toothed rack c at the side of the throat the damper may be opened more or less in operating the grate, and may be closed entirely in the summer season to prevent the blowing of soot and dust down the chimney-flue into the room.

In the construction of the back G tiles 0 are set in the recesses of the back and side walls, 0 c, to intercept the radiant heat from the fuel in the basket B, to be secured in posi tion in any convenient manner.

Having described. my invention, what I claim is- 1. In a fire-place heater of the character de scribed, a grate-back composed of a single casting integral with the throat c", for the escape of products of combustion, the rear and eral flanges c", for the attachment of the sheet I iron jacket, substantially as described.

2. In a fire-place heater of the character described, a grate-back, 0, cast in a single piece with the recessed back walls, 0, sides 0, 1nwardly projecting fuel basket supporting hooks b, hood 0, contracted throat c", and flangesc, for attaching the sheet-iron jacket H, substantially as described.

In testimony whereoflhave signed my name to the foregoing specification in the presence of 7 two subscribing witnesses.

JOHN D. VANCE.

\Vitnesses:

Cass. ANDERSON, CHAS. L. SHANNON.