US1284257A - Electric heating apparatus. - Google Patents

Description

E. B. DICE.

ELECTRIC HEATING APPARATUS.

, APPLICATION FILED IULY6,1915.

1,284,257. Patented Nov. 12, 1918.

l8 /9 INVENTOR- E/mer B. Dice.

- AiTORNEY UNITED STATES PATENT OFFICE.

ELMER IB. DICE, OF WILKINSBURG, PENNSYLVANIA, ASSIGNOR TO WESTINGHOUSE ELECTRIC AND MANUFACTURING COMPANY, A CORPORATION OF PENNSYLYANIA I ELECTRIC HEATING APPARATUS.

A Application filed July 6; 1915. Serial No. 38,204.

To all whom it may concern: 1 p

I ELMER B. DICE, a

Be it known that citizen of the United states, and a resident of Wilkinsburg, in the county of Allegheny frame 1 0 and State of Pennsylvania, have invented a new and useful Improvement in Electric Heating Apparatus, of which the following is a specification.

' My invention relates to electric translating devices having two or more relatively movable members that are each provided with current-consuming elements, and it has for one of its objects to provide a'device of the character indicated having means for sup plying current to all of the current-consuming devices in each of the several relative positions of the component members.

Another object of my invention is to provide two-part electric heating devices, such as wafiie irons and the like, with means for heating both parts of the device while they are in each of two or more relative positions.

An electrically heated waflie iron embodying the principles of my invention is illustrated in the accompanying drawing, in which Figure 1 is a plan view, with parts broken away, of the wafiie iron in its open position, and Fig. 2 is a transverse sectional view taken substantially along the line IIII', Fig. land showing one form of terminal construction adapted for use in the device shown in Fig. 1-. I

Referring to the drawing, a supporting any suitable material supports the corresponding halves 2 and 3 of a waffle iron, the member 3, being provided with perforated lugs 4 and 5 cooperating with pivot pins 6 and 7, whereby the member 3 is pivotally supported with relation to the member 2. Each of the members 2 and 3' is provided with resistance elements of any suitable form, one of which is shown at 8 associated with the member 2. A handle 9 is attached to the member 3, and notches 10 and 11 may be provided in the supporting frame '1 for receiving the handle in its open and in its closed position, respectively.

The stationary heating member 2 is providedwith a pair of contact members 12 and best shown in Fig. 2. A, similar set of contact pins 18 and 19 is secured to the frame 1 Y in line with the terminal pins 12 and 13, but

preferably somewhat belowthe level of the latter pins. The contact pins 18 and 19 are connected to theline conductors 16 and 17 respectively.

The movable heater member 3 is provided I with. contact members 20 and 21 that are adaptedto engage the contact members 12 and 13 in the closed position of the device and to engage the contact membersjlS and 19 in its open position. As shown, the contact members 20 and 21 consist of short metallic tubes extending through a projecting ear 22 of the member 3 and having flared ends which facilitate their engagement with the stationary contact'pins. Theterminals 2,3 and 24 of the heating element-8 that are associated with the stationary member 2, are electrically connected to the terminal pins 12 and 13. while the corresponding terminals 25 and 26 of theheating element associated heating members 2 and 3 in'their open andalso in their closed position, since the tubular contact members 20 and 21 are adapted to engage either the contact pins 12 and 13 or the contact pins 18 and 19.

The provision for heating both of the members of an electrically-heated waflie iron in bothof their relative positions is a decided advantage in this class of apparatus. It is to be understood, however, that my invention is not restricted to this form of de-' vice or to the structural details which I have shown and described. My invention comprehends broadly the feature of supplying energy to the several parts of a current-consuming device in a plurality of relative positions of such parts and from'terminals and supply conductors that are relatively stationary with respect to the said parts, and,

therefore, no limitations are to be imposed upon my invention except such as are indicated in the appended claims.

I claim as my invention:

1. An electric device comprising a .plurality of relatively movable members, current-consuming elements associated with each of the said members, and means, includres ing terminals and supply conductors that are I re a tively stationa with respect to the said members, for supp ying current to the said current-consuming elements in each of a plufility of relative positions of the said mem- 2. An electric heating device comprising two heating-members adapted for relative pivotal movement, heating elements associated with each of the said members, and means, including terminals and supply conductors that are relatively stationary with t to the said members, 'for energizing bot of the said heatin elements inboth their open and in their closed position,

3. An electric heating device comprising a stationary member, a movable member pivotally associated therewith, a heating element associated with each of the said mem- I bers, means for-constantly energizing the heating element associated with the said stationary member and means including separate sets of terminals for energizing the heating element associated with the said pivotally associated therewith, a heating element for each of the said heaters, two 'pairs of stationary terminal members connected to a surce of current supply, and terminal members for the heating element associated with thesaid movable heater, the latter terminal members being adapted to engage one of the said pairs of stationary terminal members in the closed position of the device and to engage the other pair of stationary terminal members in the open position thereof.

In testimony whereof I have hereunto subscribed my name this 26th day of June, 1915.

ELMER B. DICE.

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