US1093791A - Electric flat-iron. - Google Patents

Description

G. P. MADSBN.

ELECTRIC FLAT IRON.

APPLICATION FILED SEPT. 26, 1912.

. 1,O93,791 Patented Apr. 21, 191 1 comm, A conromrron or 'ncmoax.

rum-mo hecillcaflon of Letters Patent.

Patented A r. 21, 1914.

Application filed September :0, 1912. serial 1n. 722,417.

To all whom it may concern: Be it known that I, CHAnLns P. MADSEN, a citizen ofthe United States of America,

and a resident of Chicago, county of Cook,

have invented certain Improvements in Electric of which the following is a and State of Illinois, new and useful Flat-Irons, specification.

The main objects of this invention are to provide an improved and more convenient method of controlling the current in electric flat irons; to provide an improved form of switch which is adapted to be operated to make a quick make and break in the circuit; to provide an improved construction of the flat iron handle for accommodating said switch; to provide an improved arrangement of the switch within said handlewhereby it may be conveniently and quickly shlfted; to provide improved means for connectlng the electric conductors with the heating element of the flat iron; and to pro vide improved means of this kind particu-. larly adapted for use in conjunction with the improved winding disclosed and claimed in my copend'ing application executed by me of even date herewith and bearing Serial N 0. 722,416.

An illustrative embodiment of this inven tion is shown in the accompanying drawings in Which Figure 1 is a side elevation partly in section. Fig. 2 is an enlarged sectional detail of the controlling switch and its casing, the section being taken on the line -A of Fig. 1. Fig. 3 is an enlarged sectionaldetail taken on the line CC of Fig. 1. Fig. 4 is an enlarged sectional detail taken on the line B-B of Fig. 2. Fig. 5 is an enlarged detail of the switch key. Fig. 6 is ,a detail, partly sectional, .of a part of the rear handle support showing the construction whereby the electric conductors are connected to the wires leading to the heating element.

In the construction shown in the drawings, the flat iron comprises the heating bar 25. which is open or closed position pressure plate 5 for holding the heating element against the insulating compound on the heating plate 1. These parts are housed within the body or casing 9 which in turn is secured in place by means of the ornamental nut 11 on the upper end of the central screw 6. v

The handle 12 is of any suitable construc tion and is carried by tu bular supports 13 and 14 located respectively at the front and rear ends of the casing 9, and extending through apertures 15 and 16 in the shell of the casing. The supports are suitably UNITED STATES PATENT orrroa;

CHARLES P. MADSEI T, OF CHICAGO, ILLINOIS ASSIGNOB 1'0 TEE MICHIGAN STOVE shouldered to engage the upper face of the casing 9, and their lower ends are-threaded and provided with nuts 17 and 18 bearing against the inner face of the casing 9, and thus lockingthe supports rigidly in place.

s A bolt 19 extends through the handle 12 from end to end and is secured by a nut 20 which serves to rigidlysecure the handle between the upper ends of the supports 13 and14.

The upper part of the forward tubular sup-port 1-3 is enlarged to form a cap or housing 21 for the controlling switchr23, having a transversely shiftable switch member or push key 24 projecting through apertures at both sides of member 24 has a central contact shiftingconstructed to engage and oppositely shift the contact. member 26 into and out of engagement with the fixed con- A spring 42 on-the stud tacts 27. and 28. 43 causes the switch to remain set in either until the push'key 24 is again operated to reverse the switch. It will be seen that mounting the switch in this manner renders it quickly and conveniently operated by the hand of the operator which grips the handle, it being possible to shift the member 24 in respectively opposite directions by'pressure of the operators thumb and forefinger, thereby throwing the switch on and oifwithout necessitating the release of the hand from the handle. In order to protect the switch against injury, through the striking of the projecting ends of thekey 24 against an obstruction in case the flat iron is accidentally overturned or falls, the adjacent metal part of the switch casing is provided with projecting lugs 24 as shown in Fig. 3.

The rear tubular support 14 has a prothe casing 21. The

'- adjusted without necessitating the dismanmay be altered or om'tted without depart- I said handle and comprising a, movable opjecting casing on the plate or cap 29 which supports the handle 12. This casing comprises an integral part 30 and a removable cap 31 secured to the cap 29 by screws, and is provided for the purpose of housing the connections. of the electric conductors to the wires connected to the terminals of the heating element...

The heating element 4 is provided with binding posts 33 and 34 located at the op posite ends thereof, which are connected by the wires 35 and 36 to binding posts 37 and 38 on the cap 29. The wire 36 leads up through the forward support 13 and is connected to the contacts 27 and 28 of the controlling switch. The electric conductors 39 lead into the neck 40 formed by the part 30 and cap 31 and are connected to the binding posts 37 and 38. The usual spring 41 embraces the conductors 39, being secured in position thereon by the clamping of the end within the neck 40. This construction provides a convenient method for making connections of conductors to the heating element which may be conveniently tling of the iron. The operation of the device shownis similar to that otthe usual electrically heated flat irons, with the exception of the ease and convenience with which the switch may be operated in the present invention. Other features of structural advantage will readily appear to those skilled in the art from an inspection ofthe drawings and the foregoing description.

Although but one specific embodiment of this invention has been herein shown an described, it will be understood that numerous details of the construction shown ingfrom the spirit of this invention as defined by the following claims. Some of the features of novelty herein briefly described and illustrated in the drawings are not claimed herein but are made the subjectmatter of the copendingapplication hercinbefore mentioned.

Iclaim:

1. In, an electric flat iron, the combination of a body portion, a handle mounted thereon. and a controlling switch located within crating member formed and arranged to project outwardly" the walls of the andle at opposite sides thereof to permit said operating member to. be shifted in op-' posite directions by the thumb and fore-- finger respectively of the same hand which gripsth'e handle.-

2. An electric flat iron comprising a body portion, heating element in said body portion, a swltch adapted to be set either open or closed and located in said handle, and a p body portion and serving as a conduit for conductors between said switch and heating element.

3. In an electric flat iron, the combination of a body portion, a heating element in said bodyportion, a handle having a casing at one end thereof, a controlling push switch mounted in said casing, a key projecting on each side for controlling the operation of said switch; and projecting ears on said casing for protecting said projecting key.

4. In an electric fiat iron, the combination of a body portion; a pair of supports extending upwardly therefrom and having caps at their upper ends; a handle extending between said supports and having its ends connected to said caps, one of said caps being hollow with an opening on each side; and a push switch mounted therein and operalble through said opening.

5. In an electric flat iron, the combination of a bottom plate, a pressure plate, a heating element interposed between said plates, a hollow casing surrounding said pressure late and heating element and coacting with said bottom plate to form-a housing therefor, tubular supports extending upward from said casing, a. handle mounted between the upper ends of said supports, a switch at.

one end of said handle, and conductors housed within said casing and supports and adapted to connect said heating element and switch in circuit with an outside source of electricity.

6; In an electric flat iron, the combination of a body portion, a heating element secur therein, a handle having a tubular support therefor mounted on said body portion, a pair of binding posts secured to said support, wires connected to said binding posts and leading down through said tubular support'and connected to said heating element,

conductors connected to said binding posts, and a cap adapted to besecured-over said binding posts and connections.

7. In an electric flat iron, the combination v of a body portion, a heating element secured therein, ahandle, a tubular support mount, ed on said body portion and having a cap adapted to support said handle, bindsifi on said cap, wires connected to binding posts and leading down through connected fo and said tubular support and heating element, conductors to said binding posts, and a cap adapted to be secured to support for bindingpostsand audiotapporting the adjacent portion of said m ductors.

-8. In an electric flat iron, the combination of a body portion, a heating element second therein, a handle, a tubular support mounted on said body portion and having a cap adapted to support said handle, indinfi posts on said cap, wires connectedto jacent binding posts and leading down through said tubular support and connected to said heating element, conductors connected to said binding posts, and a cap adapted to be handle and adapted to be set either open or closed, and electrical connections for the switch and heating element, said handle and ready opening and closing of the switch suc cessively as desired by the operating hand during use of said device. 7

Signed at Detroit this 7th day of September 1912.

CHARLES P. MADSENL Witnesses:

EMMETT DWYER, WILLIAM J. KEEP.

'switch being constructed and arranged for

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