US1490960A

US1490960A - Combination electric fan and heater

Info

Publication number: US1490960A
Application number: US382293A
Authority: US
Inventors: Carduner William
Original assignee: SOL MANDEL
Current assignee: SOL MANDEL
Priority date: 1920-05-18
Filing date: 1920-05-18
Publication date: 1924-04-22
Anticipated expiration: 1941-04-22

Description

Patented Apr. 22, 192.4.'

UNITED STATES PATENT oFFicE.

WILLIAM cAaDUNEa, or NEW realt, N. Y., AssTGNoR or ONEHALF 'ro sor. HANDEL.,

or NEW Yoan, N. Y.

Application lcd Hay 18, 1920. Serial No. $82,293.

T o all whom, t may concern:

Be it known that -WILLIAM CARDUNER, citizen of the United States, and resident of the city of New York, in the county of New l York and State of New York, has invented certain new and useful Improvements in Combination Electric Fans and Heaters, of which the following is a specification.

This invention relates to combination electric fans and heaters.

One of the objects thereof is to provide a practical'electric appliance which may be adapted for etlicient use either as an electric fan or an electric heater for diffusing heat.

Another object of this invention is to provide a device of the type described with means for adjusting the speed of the fan to correspond to the desired use of the de- 10 vice as a fan or a heater.

A further object of this invention is to provide a device of the above type with means whereby the speed of the fan is lreduced to a desired degree simultaneously with the connecting of the heating element to the supply circuit. f

A' still further object is to provide a device of the type described in which the heating a paratus may be readily detached or remova ly'secured to the fan, and which shall be simple, neat and compact in construction.

Other objects will in part be obvious and in part ointed out hereinafter.

With t ese and' other objects in view, the invention consists in the features of construction, combinations of elements and arrangement of parts which will be exemplified in the apparatus hereinafter described and the scope of application of which will be indicated in the following claims.r

In the accompanying drawings, in which is shown one of various possible illustrative embodiments of this invention,

Fig. 1 is a vertical elevation partly broken away of a combination electric fan and heater embodying this invention;

Fig. 2 isa transverse section thereof cut along line 2 2 of Fig. 1;

Fig. 3 is a detailed sect-ion in plan cut along line 3-3 of Fig. 2 showing the switch mechanism for adjustin the speed of the fan and connecting the eating element to the supply circuit; and

opening is mounted the heating element 15.

The latter comprises a ring member 16 on which is wound a suitable high resist-ance wire 17. This ring member 16 is detachably held as by the screw 17a on a bracket 18. which is held to the plug members 19,

19 of the male member 20 of an attachment plug 21. Insulating washers are provided for insulating the bracket 18 from the plug member 19, the latter beingelectric-ally con` nected to the heater by means of the conductor 19a while the plug member 19 is connected to the heater through the bracket 18 itself. 4The female portion 23 of the attachment plug is secured in an extension 24 of the stand 10 and the conducting

wires

25, 25 for leading the current to the heating element, issue from the attachment plugr into the stand through the opening 26.

The switch mechanism for connectingr the Aelectric supply to the heating element on the fan and for reducing the speed when the heater is connected will now be described.`

Adjacent the bottom of the stand is provided the slot 27 through which operates t-he lswitch lever 28 pivoted within the stand as at 29 and adapted to operate a double throw switch 30, for connectin,f r the fan or heater to the

electric mains

31, 31 as desired. This double throw switch comprises a pair of

switch blades

32, 32 carried by the pivoted lever 28. These switch blades are provided with a head portion 33 havingfextensions 34.-. 34 adapted to enter into the jaws of the pairs of

contact clips

35, 35 secured within the stand and insulated therefrom as at 36. The usual swi-tch lever 37 is provided for regulating the speed of the fan by the resistances 38, 39. This lever 37 operates through a slot 40 in the stand, is pivoted 'as at 41 and is provided with a contact head 42 for making contact with the contact studs 43 on the plate 44. An additional resistance is provided for cutting down the speed of the fan when the heating element is in use as will appear from the diagram of electric connections (Fig`. 4).

As Will be clear from *ig 4, when the double throw switch is moved in one direction as for example to the right in that figure, the current is led from the

mains

31, 31 through the heater 15. The fan is then shunted across the mains and revolves very slowly by reason of the current supplied to theJ motor being cut down by the resistances 45 in the shunt circuit. lVhen the double throw switch is moved in the reverse direction as t0 the left in Fig. 4, the circuit through the heater is open and the current supplied through one, both or neither of the resistances 38, 39 to the fan motor, Vdepending upon Whether the switch lever 37 contacts with the first, second or third contact studs 43. By the scheme of connections shown, the fan alone ma bexdriven when desired or the heater and an simultaneously operated but at the same time that the switch is thrown to connect the heater to the supply, a resistance is cut into the fan supply circuit so Ias to reduce its speed to a desired degree. The slow rotation of the fan will then act to aid in diffusing the heat through the room as will noiv appear.

It will be noted that the heating element 15 is disposed directly opposite the Wide or operating portions of the fan vanes 13, so

that the heat from the heating element doesnot first have to travel up to the active portions of the fan before the heat Waves are propelled forward. The heat energy of the heating element is both reflected and propelled by the vanes and is further radiated from the heating element itself. Preferably, the fan vanes for eiicient action iu connection with the heater may be. highly polished so as to provide good reecting and non-heat absorbent surfaces.

It will thus be seen that there is provided apparatus in which the several objects of this invention are achieved and which is Well adapted to meet the conditions of practical use.

As various possible embodiments might be made of the above invention and as various changes might be made in the embodiment above set forth, it is to be understood that all matter herein set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, I claim:

1. The combination with an electric fan of an electric heater supported opposite said fan, electric circuits for leading current to said heater and to said fan and automatically operating means for reducing the speed of the Afan when the circuit is closed through said heater.

2. The combination with an electric fan 'of an electric heater disposed opposite said rent to said heater, and means for reducing I he speed of the motor simultaneously with losing the circuit through said heater, said means including resistance for the motor circuit adapted to be included therein upon closing of the circuit through vthe heater.

Signed at New York city, in the county of New York and State of New York, this 8th day of May, A. D. 1920.

WILLIAM CARDUNER