US1344741A - Electric sadiron - Google Patents

Description

F. THORNTON, JR. ELECTRIC SADIRON.

APPLICATION FILED 001.3. 1914.

Patent ed June 29, 1920.

, x J W m W A w m Fit RE 0 are secured to the insulatin UNITED STATES PATENT OFFICE-g FRANK. THORNTON, JR., OF PITTSBURGH, PENN SYIZVANIA, A SSIGNOR TO WESTING- HOUSE ELECTRIC AND MANUFACTURING COMPANY, A CORPORATION OF PENN- SYLVAN IA.

ELECTRIC SADIRON.

Specification of Letters Patent. I Patented J une- 29, 192a Application filed 0ct'ob'er13, 1914. Serial No. 864,718.

To all whom it may concern:

' Be it known that I, FRANK THORNTON, J r.,

a citizen of the United States, and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Electric Sadirons, of which the following is a specification. I

My invention relates to electric heating apparatus, and it has special reference to electric sad irons and the like.

The object of my invention is to pro vide a device of the above-indicated character which shall be simple and durable in construction and which shall embody novel features that add to its convenience .without increasing the number of its parts or its cost of manufacture.

In the accompanying drawing, Figure 1 is a side elevational view, with parts shown in-longitudinal section showing a sad iron.

constructed in'accordance with my invention. Fig. 2 is a rear elevational view of the sad iron illustrated in Fig. 1, and Fig.

3 is a transverse sectional view taken alongmember 8 detachably secured to the strap" 5 and provided with a suitable cord 9 for attachment to a source of electric energy.

The heating element 2 may be of any convenient form and forms no part of my present invention. As shown, the element 2 comprises a plate 10 of resistance material inclosed between sheets 11 and 12 of insulating material, such as mica.

Adjacent to the rear portion of the heatstorage member 3, and attached thereto by means of bolts 13 and 14, is a block 15, of

heat-insulating and electrical insulating material, in which are embedded or to which are attached terminal conductors 16 which block 15 by means of screws 17 and w ich areintimately connected at'18 to the-heating element 2. If desired, the insulatin 'block 15 may be made in a plurality o sections, held together by means of the bolts 13 or otherwise. The block 15 extends beyond the heel of the iron, and its contouris such 1 forms of terminal devices may be substituted for it. In some cases, the terminal device may cooperate with the block 15 to form a heel stand, as shown in the drawing,

or the handle 4 may be extended to the rear sufficiently to form part of the heel-stand.

As shown in the drawing, the terminal device 8 1s .detachably secured to the strap 5 by means of a clamp 20, the strap 5 being cut away at 21 to permit the clamp 20 to be slipped from the strap.

In order. to inclose the heating element completely within the body of the iron without the use of a separate cover, the

working member 1 and the heat-storage member 3 are provided with a cooperating groove and rib. As shown in the drawing, a depending rib 22 is formed around the lower edges of the heat-storage member 3,

and a corresponding recess or rabbet 23 is formed around the upper edges-of the working member 1. It is obvious that the rib may be formed in the working member and the groove in the heat-storage member, if

desired.

The features of my invention which render it superior to the known forms of electrically heated sad irons are the construction just described, which permits the heat- ;ing element to be inclosed between two members without the use of an additional casing or cover, and second, the provision of a single body of heat-insulating and electrical insulating material, which serves the double function of receiving the ter- I minals of the heating element and of pro-' viding a heel stand for the iron.

It is obvious that the structure which I have shown and described may be variously modified by-persons skilled in the art to which my invention 'appertains, and it is therefore to be understood that my inven tion is not restricted to the precise embodiment herein shown and described, but is limited claims.

I claim as my invention: 1. A terminal device for electric heating only: by the scope ofthe appended the heel of the said body portion and a massof heatinsulating material in which the said terminals are embedded and which is provided with a fiat. surface adapted to serve as part of a heel stand for the iron.

3. An electric sad iron comprising a base member, a body member composed of heatstorage 'material, a heating element disposed between, and electrically insulated from, said members in a manner to permit heat transfer between the heating element and the members, a cooperating rib and a depression being formed on the members for inclosing the heating element, a handle 1 mounted onthe body member and bolts passing through a portion of said handle and the body member into the base member for securing the, parts of the iron together.

4. An electric sad-iron comprising a base member provided with a recess around its upper edges, a body member composed of heat-storage material having a rib around its lower edges adapted to be received in the recess in the base member, a heating element disposed between said members and electrically insulated from the members in a manner to permit a free transfer of heat, and bolts passing through the body member and the heating element into the base mem ber for securing the partsof'the iron together. v

5. An electric sad iron comprising a body portion, a handle, an electric terminal device rigidly associated With the heel of the said body portion and including a body of heat-insulating material, and a terminal device removably secured to the said handle, the said fixed and movable terminal devices being adaptedto cooperate to form a, heel stand for the iron.

I In testimony whereof, I have hereunto subscribed my name this 28th day of September, 1919.

FRANK THORNTON, JR:

Witnesses E. LYLE POWELL, B. B. Hnms.

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