US1331400A - Stand for electric ibons - Google Patents

Description

E. STRANSZKY;

STAND FOR ELECTRIC IRONS.

APPLICATION men MAR. 18, ms.

1,33 1,400. Patented Feb. 17,1920.

2 SHEETS-SHEET I v E. STRANS ZKY STAND FOR ELECTRIC IRONS.

APPLICATION FILED MAR. la. 1919.

1 ,33 1,400. Patented Feb: 17, 1920.

2 SHEETS-SHEET 2.

OFF

mm. or can. no'vnn, onio.

. srmnron anaemic Irons.

Specification of Letters Patent. P t nt b, 7, 920

Application filed March 18,1919. Seria1No.2 88,297.

To all whom it may concern."

' Fig. 1,

Be it known that 1, Earn. STR- nsz Y, a citizen of the United States, residing at Canal Dover, in the county of Tuscarawas and State of Ohio, have invented new and useful Improvements in Stands for Electric Irons, of which the following is a specification.

This invention relates to an improvement in stands for electric irons, in the use of which the heat of the iron will be automati-' cally controlled while on the stand.

Electric irons are ordinarily subject to an overheating incident tothe continuance of the current to the iron while the iron is not in use, and if the current is cut off from the iron while it is temporarily out of use, a loss of time is incurred in reheating the iron. The improved stand is designed as a sup-.

port for the iron "and constructed to automatically control the current to the iron, so that the iron, while on the stand, may be practically held at a predetermined heat. The stand is constructed to automatically cut oil the current to the iron in the event the iron should become heated to a degree higher than that desired, and following such current cut 011", to restore the'current to the iron as the temperature of the latter falls below the predetermined degree. The improved construction also contemplates the provision of means for the adjustment of the predetermined heat degree contrbl of the stand, so that in use the iron may be practically maintained at any desired degree of heat.

In the accompanying drawin s:- Figure 1 is a bottom plan of t e preferred form of the improved electric iron stand, the bottom plate being removed,

Fig. 2 is a section on the line 22 of Fig. 3 is a section a. the 111m 3 f I Flg. 1,

Fig. et isa bottom plan view of a slightly modified construction, the bottom plate being removed, and the parts in normal positions,

Fig. 5 is a perspective detail with the con tact members used in both forms,

Fig. '"6 is a section on the line 6-6 of Fig. 4.

The improved stand, as shown more particularly m Fig. 1 com rises a body 1 of substantially an outline orm corres onding to that of the usual electric iron. he body has a-cover plate 2, on which theiron is to rest, andzan edge flange 3 preventing accicontact strip 7, secured to and insulated.

from the contact strip 5, adjacent the pivlotal connection 4. The free endof the strip 7 7 is made up of spring sections 8 and 9, the section 8 of which is arranged to' contact with the point 6 when the circuit is complete.

The end of the strip 5 is connected to an adjusting member 9, in the form of an L-shaped section, the upright portion of which has a rod 10 projecting through .and insulated from the side wall of the stand, and terminally provided with an adjusting nut 11, whereby the contact member as a whole may be adjusted about the pivot 4, and through said nut 11 securedin such adjusted position. This provides for a variation in the heat-control limit of thestand,

. conductor 18 through the other contact strip 5. Acondenscr 19 is connected across the circuit for the usual purpose. The push plug socket 16 is designed to recelve the terminals 17 of the circuit wires leading to times heated through the stand.

Secured to the underside of the cover plate 2 is the'thermostatic control element,-

whereby the'circuit connections are cutin and out to automatically control the heat degree of" the iron while on the stand. This.

thermostatic ,element comprises two metallic strips of widely difie'rent coefiicient of expansion under he'at,- such stri is being con- --nected togetherat therespectlve ends, and the element as a whole connected to the v the electric iron, so that said iron is at all strips,

stantially identical in construction with the from said cover plate at such end, and areto move the lug 23 into contact with the strip 7 and raise the spring section 8 thereof from the contact point 8. The circuit to the iron is thus interrupted and the iron cools to the predetermined heat point, at which heat degree the thermostatic element has again permitted the contact strips 5 and 7 to close the circuit.

In Figs. 4 and 6 is illustrated a slightly modified construction in which the contact here indicated'as 5 and7', while subpreviously described strips 5. and 7 are fixed upon an insulating block and are not adapted for adjustment. I

In this form the thermostatic element,

I herein indicated as 25, is seated within a depression 26 in the underside of the cover plate, in order that the thickness of said plate between the surface of the electric iron and the thermostatic element may be so thin that the heat of the electric iron will be readily communicated to the thermostatic element. In the latter form of stand the thermostatic element is shown as provided with an upstanding rod 27 to underlie the.

contact strip 7, for the operation of such contacts in cutting in and out the circuit.

The arrangement of the thermostatic element within the depression 26 of the cover plate 2 may, of course, be applied to the form illustrated in Figs. 1 to 4, or said thermostatic element may be otherwise disposed if desired so long as it may be readily affected by the heat from the electric iron.

In the forms will, of course, adjust the contact strip 7 relative to the .lug 23 of the thermostatic element, and through this adjustment the degree of heat necessary to move the thermostatic element to open and close the cir cuit may be varied at will.

While the iron is in use the contact strips 5 and 7 are closed and the heating circuit to the iron passes through the stand without.

any eflFect on the control elements of the stand. When it is desired, however, that the iron shall be held' at practically apredetermined heat, no matter how long it may be out of use, the electric iron'is placed on the stand, and the. latter, automatically controls the heat as described.

The improved construction provides an tally shown in Figs. 1 to 4 the ad-: uStment of the contacts about the pivot 4,

of the iron while on the stand is automatlcontrolled to prevent overheating of the iron without permitting the iron to cool off to an undesirable extent. Furthermore, the improved stand is readily adapted for use with any type of electric iron; if designed for household or commercial use with any type of electric connection, and may be connected and disconnected as readily and conveniently as the usual iron. Of course, itis to be understood that the cover plate 2 is preferably made of; a metal which will readily communicated heat, in order that when the iron is lifted from the stand for use the thermostatic element may be quickly cooled, in order to maintain the electric connection to the iron.

Having thus described the invention, what I claim is:

1. Astand for electric irons including a cover plate, contact strips controlling the circuit through thermostatic element carried by and in direct contact with the cover plate to actuate said contact strips.

2. A stand for electric irons including a cover plate on contact strips controlling the circuit through the stand to the iron, a thermostatic element secured to and in direct contact with the cover plate, and a lug on said element to engage one of the contact strips in the movement of the element under the action of heat.

3. A stand for electric irons includinga body having a cover plate, a thermostatic element secured to and carried by said cover plate, contact strips arranged in the circuit leading through the stand to the iron, one of said strips being of spring type, and means carried by the thermostatic element to engage and operate said spring contact strip to control the circuit to the iron.

4. A stand for electric irons including a body having a cover plate, a push plug socket arranged in the body to receive the electric iron conductors, contact strips arranged in the body, one of said strips being connected to one terminal of the push plug socket, conductor wires leading to the stand and connected respectively to one contact strip and the remaining push plug socket terminal, and a thermostatic element secured to the cover plate and adapted to opirate contact strips under a predetermined eat.

5. A stand for electric irons comprising a body having a cover plate, contact strips arranged in the body and controlling an electric circuit leading through the stand and to the iron, a thermostatic element carried by the cover plate and adapted to control the contact strips, and means 'for adand quickly radiate the which the iron is to rest,

justing the contact strips to vary the control of the thermostatic element.

6. A stand for electric irons comprisin a body having a cover plate, a contact mem er mounted for pivotal movement in said plate and comprising relatively insulated contact strips for controlling the circuit leading through the stand to the iron, a thermostatic member carried by the cover plate and adapted to control one of said strips, and means for moving the contact member about its pivotal support.

7. A stand for electric irons comprising a body having a cover plate, a contact mem- I ber mounted for pivotal movement in said plate and comprising relatively insulated contact strips for controlling the circuit leading through the stand to the iron, a thermostatic member carried by the cover plate and adapted to control one of said strips, means for moving the contact memsecuring the contact member in adjustedposition.

ber about its pivotal support, and means for In testimony whereof I aflix my signature. 25

EMIL STRANSZKY.

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