US2151140A - Heating unit - Google Patents

Description

March 21, 1939. 1, NQVAK 2,151,140

f HEATING UNIT Filed Feb. l5, 1958 r. www 4 JOSEPH NVMQ /4 T TDR/v5 x/ Patented Mar. 2l, 1939 uNlTED STATES PATENT OFFICE I 1 Claim.

(Cl. 21S-39) This invention relates generally to heat transmeans of which the air currents from the fan 22 fer devices, and particularly `to a heating unit.

The main object of this invention is the construction of a unitary portable heating unit by 5 means of which large quantities of air may be warmed at a relatively lower temperature than is ordinarily practiced.

The second object is the construction of a heating unit having an exceedingly flexible control for the heat energy delivered thereto and the 'rate of heat extractiontherefrom.

The third object is to so construct the device that it may be permitted to run indeiinitely withoutdanger of overheating the device itself and at the same time maintain a reasonable Warm temperature within the room.

The fourth object is to construct a device of the class described in which the flow of current to the heating elementv and to the circulating fan is adjustably governed by means of a single control and in which the operation of the heating element is thermostatically controlled.

The fifth object is to construct a portable hot water heater having a directional air discharge. 5 I accomplish these and other objects in the manner set forth in the following specication as illustrated in the accompanying drawing, in which:

Fig. 1 is a perspective view of the device from.

.0 the front or air discharge side thereof.

Fig. 2 is a perspective view of the rear of the device.

Fig; 3 is a section taken along the line 3 3 in Fig. 1. e FlFig?. 4 is a section taken along the line 4-4 in t Fig. 5 is a diagram showing the control sys- Similar numerals refer to similar parts throughout the several views.

Referring in detail to the drawing, there is shown a base II), preferably mounted on casters II or gliders. Qn the base I0 is mounted the radiator I2 which rests upon the support I3. The radiator I2 is connected to a supply tank I4 by means of the return pipe I5 and the upper water pipe I6.'

Filler pipes I1 and I8 are provided for the 'radiator I2 and the supply tank I4. Between the radiator I2 and the tank I4 and mounted on the` base I0 is a standard IS-upon which is mounted a motor 28 on whose shaft 2i is mounted a fan 22. A casing 23 encloses the radiator I2 and tank I4 'and is provided with the lateral louvers 24 and the outlet opening 26 which has u mounted therein a plurality oi' shutters 28 by passing through the radiator I2 may be deile'cted in any desired vertical direction.

It is desirable to provide a-handle 21 on the top of the casing 23 for convenience in moving the heating unit.

Within the supply tank I4 is disposed an electric heating element 28,-one side of which is connected to the power wire 29 through the rheostat 3o. The heating element 2s is connected to 10 the thermostatic element 3I whose post 32 is provided With a lever 33 which is held between the adjusting screws 34 and 35, the purpose of which is merely to'adjust the position of the arm 38 with relation to the Contact point 31 which 1s 15 connected with the power wire 38 by means of a wire 39.

It can be seen that when the rheostat 30 is turned to permit current to flow through the wires 29 and 38, it will operate the motor 20 at 20 Ya speed proportional to the position of the rheostat 30 and if the arm 36 is in engagement with the contact 3l, then a proportional amount of current will ilow through the heating element 28 and warm the water within the tank I4. The 25 warmed water will rise and pass through the pipe I6 into the radiator I2.

It can be seen that if, for example, it is desred to use the unit as a cooling fan only, then the screws 34 and 35 are adjusted to hold the cir- 30 cuit of the element 28 open, that is, the fan 22 will be operated but no heat will be generated Within the tank I4.

If, however, heat is desired, the element 3i is adjusted with relation to the contact 31 so that `35 current will flow through the element 28 until the desired temperature is reached at which time the thermostat will operate to stop the flow of current to the heating element.

It can thus be seen that a wide range of heat-- 40 ing requirements can be .easily met since the output 'may vary from a largevolume of cold air to a large volume of warm air.

I claim:

A heating unit of the class described charac- 45.

terized by having a rectangular base, a water cored radiator disposed along one side of said base, an upright water storage tank disposed along the opposite side of said base and connected to said radiator, means for'heating the 50 water in said tank, a fan disposed between said radiator and tank,v a louver casing mounted on said base surrounding said radiator fan and tank and a handle on the top of said case between said radiator and tank.

' JosaPH Novas.

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