US1813023A - Electric heater - Google Patents

Description

y 7, 1931- F. J. CHESLOCK ET Al. 1,813,023

ELECTRIC HEATER Original Filed Aug. 11. 1928 jrvwzwrams' Knit/me Patented July 7, 193T UNITED STATES PATENT OFFICE FRANK J'. CHESLOCK AND CLEMENT A. YARES, OF ST. PAUL, MINNESOTA ELECTRIC HEATER Application filed August 11, 1928, Serial No. 298,888. Renewed June 9, 1930.

This invention relates to an electric heater and air circulating device and the main object is to provide a simple, ellicient and in expensive device, preferably portable, of such construction as to generate and circulate heated air in a certain manner and further to provide simply an air circulator without the use of the heating features. The new and novel combination embodying certain features of construction are hereinafter fully set forth, reference being had to the accompanying drawings, in which;

Fig. 1 is a front View of our improved electric air circulating device with a portion of its hinged deflector plate removed.

Fig. 2 is an approximately vertical sectional. elevation as on line 22 in Fig. 1 certain parts rearward of the heater device being shown full.

Referring to the drawings by reference numerals, 5 designates anysuitable type of elec tric motor with a multi-blade fan 6 on its main shaft, said motor mounted preferably pivotally and adjustably as at 7 to the upper part of a pedestal 8 the: latter being formed with a suitable base 8B. The fan rotates of course in a plane at right angles to the motor shaft, preferably in a vertical plane as shown to blow a current of air horizontally from it as indicated by arrows 9, Fig. 2, for the usual purpose of creating a cooling effect in otherwise hot or stuffy rooms.

10 is an upright circular or ring like deflector fixed concentric of fan 6 by any suitable means such as radial brackets 11, to the motor, the opening of said ring being in spaced relation to the fan so that air blown from the latter has unobstructed free circulation therethrough. Said ring is of any suitable sheet metal and is of approximately U-shape in cross section radially and the opening of said U being outwardly from the fan.

In other words the ring is formed as an outwardly opening round trough designated as T for convenience.

In the base or bottom of the trough we secure a shallow ring 10R of any suitable non-electro-conductive material on the outer face of which is fixed a ring shaped heating element 12 illustrated as a continuous resistance coil with the necessary two electric terminals let-15 at its termini and connected with a cable 16 for electric current, said cable leading to the pedestal 8 in which is a press button 17 for controlling current to said heating element. As the resistance coil or heat ing element generates heat it is normally deflected outwardly because of the trough like shape of the ring, but we have provided further means for circulating this heated air. Said means comprises mainly a depending plate 18 suspended by a suitable link or links 19 hinged as at 20 to the top of the ring 10 and as at 21 to the upper part of the plate. The latter is suspended in vertical plane in front of ring 10 and in spaced relation thereto hearing against an upright wire ring 22 held concentric to the ring by suitable radial braces 23 fixed to the ring by suitable radial braces 23 fixed to the outer rim of the ring as shown. 18H is a hook member of lower part of plate 18 to slidably engage the lower part of ring 22 (see Fig. 2).

1n Fig. 2 is illustrated a variable control switch 24 by means of which the current to fan 6 is controlled for variable speeds. Assuming that the heating element is in operation and plate 18 arranged concentric of ring 10, as in Fig. 2, current is turned on to rotate fan 6 slowly. The current of air thus created is of course blown directly against the inner side of plate 18 which deflects the said currents outwardly between the plate and the ring, as indicated by arrows 25 in Fig. 2, causing the heat from the heating element to be spread out and circulate through a room very efficiently.

If the fan is to be used for cooling purposes only the plate 18 is raised .and swung over the top of the device to a resting position '(indicated in dotted lines in Fig. 2) out of the sphere of action of the fan, and of course the heating element is then not utilized.

The plate 18 may be made up of a series of hinged slats adjustable for variable openings.

We claim:

1. In a portable electric air circulating device having an electric motor and a rotary [ill fan operated thereby, and variable speed control means for said fan; a single circular trough shaped ring fixed concentric of and about said fan to provide an opening for free circulation of air current from said fan therethrough, an electric heat generating element fixed in the said trough, and pivotally suspended deflector means adapted to be removably placed forward of said opening of the ring and forward of the fan and concentric thereof to deflect air currents from the fan and radially spread the air heated by said heater element and in a direction at right angles to the initial movement of the said air currents created by the fan.

2. In a portable electric air circulating device having an electric motor and arotary fan operate-d thereby in normally upright plane, and variable speed control means for said fan; a circular trough shaped ring fixed concentric of and about said fan to provide an opening for free circulation of air current from said fan therethrough, an electric heat generating element fixed in the said trough and adapted to deflect heat forwardly therefrom, and means adapted to be removab-ly placed forward of said opening of the ring and forward of the fan and concentric thereof to deflect air currents from the fan and radially spread the air heated by said heater element, and control means for said heater, said deflector means comprising a plate, hingedly suspended concentrically of the opening of said ring and in spaced relation forward thereof and further means holding the said plate in heat deflecting position comprising a spiderformed as a ring with radial arms fixed at their outer extremities to said ring.

3. The structure specified in claim 1 in which said deflector means comprises a plate removably suspended forward of the ring opening, link means pivotally connected to the upper part of said plate and to a part of the ring above said plate, a fixed metal frame spider forward of said ring and means at the free end of said plate opposite its hinge means for removably engaging said spider for the purpose set forth.

In testimony whereof we affix our signatures.

FRANK J. CHESLOCK. CLEMENT A. YARES.

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