US1604558A - Portable electric radiator - Google Patents

Description

Oct. 26 1926.

Filed June 1, 1926 4 Sheets-Sheet 1 .Illlllllllllll'llll llllnllll. I

1N VENTOR A TTORNEY PORTABLE ELECTRIC RADIATOR Filed June 1, 1926 v Sheets-Sheet 2 W INIf ENTOR %%%J A TTORNEY Oct. 26, 1926 A. JOHNSON r PORTABLE ELECTRIC RADIATOR Filed June 1, 1926 4 Sheets-Sheet 5 ki n IiITITIITI;

W m V. VTOR B y W A 570mm Y PORTABLE ELECTRIC RADIATOR Filed June 1, 1926 4 Sheets-Sht 4 Fig-44.

11v VEN TOR 'A TTOkNE Y Patented Oct. 26, 1926 AXEL JOHNS ON, 0F OAKLAND, CALIFORNIA.

PORTABLE ELECTRIC RADIATOR.

Application filed June 1,

This invention relates to electric heaters and more particularly to heaters of the portable type resembling the conventional radiator, and to a heater wherein reflection and air circulation are employed to obtain maximum efficiency in the apparatus.

Among the objects of the inrentio is the construction of a heater from unit sections, which may be varied in number depending on the size of the heater to be manufactured, and to form thesestructural units in such manner that they may be assembled with the minimum of labor, and manufactured at a minimum cost. To construct a heater of the multiple duplicate unit type wherein the units are of simple, cheap and effective for mation, and when assembled provide an ellicient electric heater of rich appearance, which may be moved about the place to be heated, and the current for supplying'the heating elements thereof may be obtained from fixed sockets to which is connected a flexible conductor.

With the above mentioned and r jects in view, the invent-ion consists in the novel construction and combination of parts hereinafter described, illustrated in the ac companying drawings and pointed out in the claims hereto appended; it bei g understood that various changes in the form, proportion, size and minor details of construction within the scope of the claims be resorted to without. departing from the spirit or sacrificing any of the advantages of the invention.

To more fully comprehend the invention, reference is directed to the accompanying drawings forming a part of the application and wherein- Fig. 1 is a view in elevation of the preferred embodiment of my invention, as viewed from the rear of the'heater, with a portion of the rear wall broken away exposing the interior of the heater structure.

Fig. 2 is a view in broken top plan.

Fig. 3 is a view in vertical section.

Fig. 4 is a view in end elevation.

Referring more particularly to the set views of the drawings, wherein l acters of reference designate corr pondi parts1 indicates a pair of radiator end plates provided with supporting legs 2, and preferably formed of cast material. The end plates 1 are united at their top tie rods 3 and adjacent their bottom by a bottom plate, 41- the latter being secured to the end plates by attaching devices passing through 1926. Serial No. 112,836.

lugs l extending inwardly from the inner faces of said plates. Betweenthe end plates are held the heater front and rear walls 5 and 6, the same being preferably constructed of sheet material and provided with vertically disposed flutes 7. ,Both front and rear walls 5 and 6 are constructed of a plurality, of vertically disposed units: 8, {the same being formed on their vertical edges with flanges 9, which abut on of the units.

The flanges are formed with apertures near their upper ends, through which extend the tierods 3, and between opposing flanges of the respective unitsthere is interposed a tubular spacing member 10 through which the tie rods pass. The lower ends ofthe units forming the respective walls are held together by other tie rods 11, also extending through apertures in the flanges of the units. and between the flanges of the respective units are interposed tubular spacers 12 surrounding the rods 11.

The lower edges of the front and rear walls 5 and 6 extend to a point opposite the longitudinal side edges of the bottom plate 4, and their upper ends terminate substantially flush with the upper ends of the respective end plates 13, which in turn extend above and are united to the innerfaces of the end walls 1. The front wall. 5 is provided with a vertical series of perforations 1 to admit of the reflection of the glowof the heating element, hereinafter described, and the passage of heated air from the interior of the heater therethrough.

Resting on the upper ends of the front and rear walls 5 and 6 and the end plates 13 is a top wall 15 preferably of grill forma-= each formed on its transverse edge with a depending flange 16, the flanges of adjacent sections when assembled abutting, as in Fig. 1, and forined with apertures 17 through which extend the tie rods 3. The end see tions of the cover plate 15 are illustrated as being provided with handles 18, but this is understood to be optional.

Arranged in parallel spaced relation to the inner face of the rear wall 6 and adjacent thereto is a reflector wall 19, the upper portion of which curves forwardly at 20 toward the upper end of the front wall 5 and lies beneath the undersurface of the top plate 15. This forward curved extension of the reflector 19 is secured by suitable means the assembling to depending lugs 21, preferably integral with the sections of the top wall 15.

The space between the rear wall 6 and reflector wall 19, indicated by the numeral 22, forms an air circulating passage 1 at the rear of the heat-er, the upper end of which terminates beneath the top wall 15.

Disposed in vertical parallel spaced relation within the heater are suitable supporting cores 23 having wound therearound resistance elements 2 1, the elements and their respective cores constituting heating units which are interconnected by buss bars 25.

Disposed transversely across the upper and lower ends of the respective units are mounting bars 25, the endsof which cooperate with the flanges 26 extending inwardly from the end plates 1, and said bars are secured at their corresponding ends to the respective flanges by tie bolts 27 extending therethrough.

It will thus be apparent that the elements 'may be removed from the heater as a unit.

Current is supplied to the elements through leads 28 which are adapted for connection with the main supply leads 29 through a switch 30 mounted on one of the end plates, the lead 29 passing through an insulated aperture 31 within said end wall, as illustrated in Fig. 1.

hen in use, the glow of the resistance elements 24 will be reflected by the plate l9 through the ports 14: in the front wall;

the air entering the lower part of the heating chamber within which the units are mounted will be caused to rise cnerein, be-

- comeheatedby Contact with the units and pass from the chamber through the apertures 14. The air entering the lower portion of the passage 22 will be heated by condiiction and rise from the heater through the grill top -wall 15. The provision of the air circulating passage 22 insures that the rear wall of the heater will be maintained cooled at all times.

I claim 1. A portable electric radiator comprising end, back and ported front and top walls forming a chamber having an open front, top and bottom, a pair of tie rods uniting the upper ends of the end walls, one rod of the pair uniting the back wall with one edge of the top wall and the other rod of the pair uniting the front wall with the other edge of the top wall, a reflector wall disposed vertically within the chamber dividing the same longitudinally into a heating unit compartment and an air passage, said wall overlying the heating unit compartment beneath the top wall, and electric heating elements within the heating chamber.

2. A portable electric radiator comprising end, back and ported front and top wall members, forming a chamber having an open front, top and bottom, the respective walls each being formed of a plurality of substantially duplicate units, a reflector wall vertically disposed within the chamber and dividing the same longitudinally into a heating unit compartment in rear of the front wall and an air passage between the re liector wall and the back wall, the upper end of said reflector wall overlying the heating unit compartment beneath the top wall, a pair of tie rods uniting the end walls and one of the rods of the pair uniting the back wall forming sections with the top wall forming sect ons, and the other rod of the p. 'r uniting the front wall forming sections with the top wall forming sections, and heating elements within the heating unit compartment.

3. A portable electric radiator comprising end, front, back and top wall members, the respective walls each being formed of a plurality of substantially duplicate units and providing a heating chamber, the front and top walls being further provided with apertures, a reflector wall within the chamber and formed of a plurality of substantially duplicate units, said reflector facing the ported front wall and forming with the back wall a vertically disposed air passage extending the full length of the chamber from top to bottom, a plurality of electric heating elements disposed within the chamber in advance of the reflector, and tie rods uniting the upper ends of the end walls with the top wall, one of said rods each passing through the respective front and back walls.

In testimony whereof I have signed my name to this specification.

AXEL JOHNSON.

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