US1699789A - Heater - Google Patents

Description

Jan. 22, 1929.

A. J. HARTFIELD HEATER Filed Jan. 16,1].928

' INVENTOR. A fuficfHd/ffk/a BY 2 I A TTORNEYL Patented Jan. 22, 1929.

Answer J. nnnrrinnn, or Los Antennas, CALIFORNIA.

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Application filed January 16, 1928. Serial No. 2487,0751

This invention relates to a radiant heater which embodies improved means for heating the air of a room, hall, etc.

An important object is to provide a more cheaply manufactured sheet iron construction of the furnace wall so arranged to co operate with the upper ends of the radiants as to removably support the latter in an cilicient manner.

A further object is to simplify and cheapen the interior construction of a heater by the provision of a novel metal member which is adapted both to support the heating elements and to form portions of the walls of the heater casing.

Other objects and advantages may hereinafter appear.

Referring to the accompanying drawingswhich illustrate a preferred embodiment of the invention.

Figure 1 is a front view of a portable heater embodying the invention.

Figure 2 is a vertical section on line 22 of Figure 1.

Figure 3 is a horizontal section on line 3--3 of Figure 1.

Referring in detail to the drawings, the upright casing 5 is provided with an open face 6 just behind which is located the upright heating elements 7. Said heating ele ments are heated by a series of burner elements 8 of any desired construction located therebeneath, as well shown in Figure 2, the lower portion of the casing being provided with a burner chamber 9 having a front wall 10 provided with cold air intakes 11 and 11 at its front and bottom sides respectively. At the top of the casing is provided a heated air chamber .12, there being located between said chambers 9 and 12 a jacket 13 which partially encloses the series of heating elements 7 and which has a rear wall 14 in spaced relation to the back wall 15 of the furnace casing, thereby forming an upright fine 16, and side lines 16 which lead from the burner chamber 9 to the top chamber 12.

Referring in detail to the construction of the acket 13, said jacket by preference and as shown, consists of an upward prolongation of the sheet metal wall 10 of the heater casing, said wall 10 having a rearward extension 18 adjacent thereto. The part 18 at its rear edge joins the rear wall 14- of said jacket. The top of the jacket has a for wardly directed portion 19 which terminates in a channelled flange 20 that is fitted over the upwardly extending top flanges 2.1 of the heating elements 7.

Each of the heating elements 7 is provided with a top wall 22 which is inclined downwardly and rearwardly in spaced relation to the top wall. 19 of the jacket 13, and the aforcmentioi'ied back wall 1 1 of said jacket is spaced rearwardly of the heating elements 7, thus providing a heat radiating chamber 2-5 between said heating elements and said wall 14.

The top chamber12 of the heater is provided in its top wall 12" with an upwardly and forwardly directed apertured portion 24 to direct the air forwardly and upwardly into the room, it being understood that the furnace will usually be placed with its back 15 near one of the walls of the room.

The bottom 10 of the heater is shown formed as a rearward continuation of the front wall 10 and with air intake openings 11 passing therethrough. Said bottom is shown having a flange 10" for attachment to the back of the furnace by means of rivets 10. The member which forms the top and back of the furnace may consist either of cast iron or of sheet iron. Sheet metal mom bers 11 and 14 may support the cross wall 18 which supports the heating elements 7. Cross wall 18 is formed of a separate piece of metal in order to provide for expansion and contraction thereof, independently of the adjacent members of the heater.

In operation, heated air is radiated horizontally into the room from the upright heating elements 7 located at the front side of the heater and forming the front wall of the chamber 23; while at the same time upward ly and forwardly directed currents of heated air a re escaping into the room through the apertured top portion 24 which is located above the heating elements 7. Owing to the currents of heated air being delivered into the room from these two sources and in two general directions as has been explained, there is created within the room an eiiicient circulation of heated air by passing air through intakes 11 and 11 into chamber 9, thence through the lines 16 and 16 into chamber 12, and through said apertured portion 24 as indicated in the annexed drawing.

I claim In a radiant heater, an upright casing having a front wall which is provided with a downwardly directed lip Which forms the upper margin of the opening for the heater proper, a heating element within said casing nel portion Whichfits around the rear, top

and front of said upright flange and which abuts against the inner surface of said. ]i p of the casing, said channel portion consisting of angular bends of the sheet metal in which it is located.

In testimony whereof I affix my si 'nature.

AUGUST J. HARTFfiELI).

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