US1533098A - Electric heater - Google Patents

Description

April 14; 1925.

I 1,533,698 5. M. CARMEAN ET AL ELECTRIC HEATER Filed April 11,1924

ful Improvements in Electric Heaters; and

Patented Apr. 14, 1925.

UNITED vsra'rrzs PATENT OFFICE.

SAMUEL M. CARMEAN AND JAMES H. CARMEAN, or KANSAS CITY, MISSOURI. ELECTRIC HEAT'ER.

Application filed A ru- 1.1, 1924. Serial No. 705,773.

To all whom it may concern:

Be it known that we, SAMUEL M. CARMEAN and JAMES H. GARMEAN, citizens of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and use- We do declare the following to be. a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification. I

his invention relates to electric heaters in which a resistance wire or similar elemen-t furnishes the heat when the electric ed by current is passed through it and in which an air impeller is utilized for flowing air over the heating element or elements and directing it into the room or atmosphere to be heated.

The generic principles involved have already been patented by us in numerous prior patents, but this invention has to domore particularly With a novel inexpensive adaptation of the invention in the form of a cheap assembly. contemplates a novel form of casing for the impeller and the heating element together with a base to support it,'and means for assembling the impeller and the heating ele ment in the casing.

In the drawings,

Fig. 1 is a vertical, longitudinal, sectional View through a casing showingthe heating elements and the air impeller installed, the

casing being supported upon a base. I

Fig. 2 is an end view of the heater, of the base being shown in section, and

Fig. 3 is a perspective view of the casing sheet with its continuons'edges spaced apart.

Referring now to the drawings by numerals of reference 1 designates a base of appropriate construction having an upstanding leg '2' to which the casing 3 is secured. The casing may consist of a sheet. The sheet is bent into cylindrical form and its edges are rivetpassing rivets, through openings 4 and part The invention therefore 'not be burnished. may be introduced from the front end of theters-Paterit is:

5. Intermediate two struck out clamping fingers 6 and 7 which embrace opposite sides of the lug 2, there being a bolt 8 for fastening the fingers 6 and 7 to the lug 2,-the bolt 6 being tightened by a wing 3 is a. spider 10 preferably formed with three arms 11, 12' and 13, the ends of which abut against the inner surface of the cylindrical casing,'the ends being fastened in place by screws 14, 15 and'16. The spider is formed with a threaded'hub 10 into which is fastened the threaded portion 17 of a motor 18 on the drive shaft of which is an impeller or fan '19. In front of the impeller or fan is. a ring 20 to serve as a stop member 21 having eating coils 22, 23, and

24 passing through them, the coils being energized from a conductor 25 controlled by a switch 26, theswitch also controlling current to the conductor 27 which controls the motor 18.

The base 1 may be cast of appropriate metal, the casing 3 may be formed of sheet metal andfastened on to the lug 2 as above described. The spider may be of rough casting fastened in the casing and a motor casing devoid of finish may be screwed into the hub. The blades of the impeller may The heating elements caslng against'the rin and the ends of the casing may be closed y screens 28 and 29, held in place by the flanged rings 30 and 31. The casing 3-may be painted or otherwise finished as. may also the base.

It will be apparent that the device may be constructed and assembled in a very inexfor the heating the ends of the sheet are I nut 9. Within the cylinder pensive manner .so that the production cost will be materially reduced below that necessary where all of the parts must have finished sur aces and this with the assembly is really the important part of our invention.

What we claim and desire to secure by Let- An electric heater consisting of a base having a lug, a' casing formed of sheet metal and having struck out portions lying on opposits sides of the lug, means for fastening the lug and struck out portions together so that eds Lug ends of the arms of which are fastenefl thereto, a. motor secured spider, a fan on the motor shaft, a, stop ring in front of the fan carried by the casing, a heating element within the casing hearingpect In to the hub of the tures.

will be supported upon the against the stop ring and screens on the rebase, a spider within the casing, the outer s we ends ofthe casing.

testimony "whereof we afix our signa- 1 SAMUEL M. GARMEAN. JAMES H. CAEMEAN.

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