US1064358A - Electric stove. - Google Patents

Description

G. METTLER.

ELECTRIC STOVE.

APPLICATION FILED r3341, 1913.

Patented June 10, 1913.

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' UNITED STATES PA TENT OFFIGE.

CASPAB METTLER, OF NEW HAVEN, CONNECTICUT, AS SIGNOR OF ONE-THIRD TO HENRY W. LEETE AND ONE-THIRD T GEORGE C. MOORE, OF NEW HAVEN, CON- NEGTIGUT.

ELECTRIC STOVE.

Patented June 10, 1913.

Application filed February 11, 19131 Serial no. 747,873.

To all whom it may concern:

Be it known that I, OAsPAn METTLER, a

citizen of .the United States, and resident of under side of the New Haven, in the county of New Haven and State of Connecticut, have invented a new and useful Improvement in Electric Stoves, of which the following is a specification.

My invention, relates to electric stoves and comprises'a stove in which the weight of any ordinary utensil in common use is sufiicient to make the circuit through the heating element of the stove when the utensil is placed upon the stove and to permit the circuit to be broken when the utensil is removed from the stove, whereby the stove is applicable for use without requiring a special utensil therefor and may be sold as a complete article of manufacturein itself, for use in con- 'nection with pots, pans, skillets, boilers and other common utensils of various shapes and sizes.

A practical embodiment of my invention is represented in the accompanying drawings, in which Figure 1 represents the stove in top plan, Fig. 2 is a vertical central section through the same, Fig.- 3 is a section taken in the plane of the line AA of Fig. 2, Fig. 4 is a section taken in the plane of the line B-B. of Fig. 2, and Fig. 5 is a section taken in the plane of the line C of Fig. 2.

The hollow base of the stove is denoted b y l. i

The platform on which the utensil is to be placed is denoted by 2 and it is hinged at 3 to a bracket 4 secured within the base in such a position that the top of the platform 2 projects above the top of the said base. This platform 2 carries a'heating element. In the present instance, two of these elements 5, 6, are shown extending along the platform 2.

The main electric conducting cable is denoted by 7 and its branches lead respectively to. the heating elements 5, 6, andvto one member 8 of a cut-out switch, the other member of which switch is denoted by 9. The member 8 of the switch is mounted upona cross bar 10 secured at its ends to the base 1.- This member 8 of the switch is insulated from the base as, for instance, by making the cross bar 10 of insulating material. The movable member 9 of the switch is hinged at 11 to brackets'12, 13, carried by the cross bar 10.

A connecting rod 14 is fitted to slide in a suitable bracket 15 carried by the cross bar 10, which bar14 engages the platform 2 and the movable member 9 of the switch so that these two parts are connected to move together. A spring 16 serves toyieldingly hold the platform2 in its raised position and the. movable member 9 of the switch out of contact with the stationary member 8 thereof. With the parts in this normal position, the circuit through the heating elements is broken. The tension of the spring 16 and the arrangement of the parts are such thatthe weight of any. ordinary utensil in common use, when the utensil is placed upon the'platform 2, will serve to depress the platform and through the connecting rod 14 close the switch 8, 9, and thus make the circuit through the heating elements. The moment the utensil is removed fromthe platform 2, the spring 16 will return the parts to their nbrmal position and auto-.

matically break thecircuit through the heating elements- A stop 17 is provided for limiting the downward. movement of the platform 2 through its engagement with the movable member 9 of the switch.

- It is to be understood that in a stove of this character, where the making and breaking of the circuit is controlled by the weight of an ordinary utensil, the parts should be so delicately adjusted that a very slight weight applied to the platform 2 will serve a to make the circuit so as to render the stove applicable for the lightest of utensils.

It will be seen from theabove description thatthis cooking stove is one which is not limited at all to any special form of utensil and is one which can be used in connection with utensils in common use and that it is not limited at all to any particular size of utensil. l V

It is evident that various changes might be resorted to in the construction, form and arrangeinentof the several parts without departing from the spirit and scope of my invention; hence I do not wish to limit my- Iielf strictly to the structure herein set forth,

-What I claim is 1. In an electric stove, a heating element, and a movable platform adapted to be controlled by the weight of a separate utensil for making and breaking the circuit through said heating element.

2. In an electric stove, aheating element, and a movable platform carrying the same, adapted to be controlled by the weight of a separate utensil for making and breaking the circuit through said heating element.

3-. In an electric stove, a suitable base, a movable platform carried thereby, a heating element, a cut-out switch, a connection between the movable member of the switch and the platform for transmitting motion-- one to the other and a spring normally holding the switch open and the platform raised,

said platform beingadapted to be depressed by the weight of a separate utensil for closing said switch to make the circuit through said heating element. a

4. In an electrlc stove, a suitable base, a platform hinged thereto, a heating element carried by the platform, a cut-out switch carried by the base, a mechanical connection between the switch and platform whereby the movement of one controls the movement of the other and a spring for normallyholding the switch open and the platform raised, said platform beingadapted to be depressed by the weight of a separate utensil for closing the switch to make the circuit through said heating element.

In testimony, that I claim the foregoing "as my invention, I have signed my name in presence of two witnesses, this fifth day of February 1913.

Witnesses:

MARY H. HAWLEY, WM. 1E. RowLANn,

CASPAR METTLERI

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