US1547824A - Sadiron - Google Patents

Description

July 28,1925. 1,541,824'- C. H. ROEHM SADIRON Filed Aug. 10, 1925 n 13 L. a4' y 1^. s

PatentedJuly 28, 1925.

UNITED STATES PATENT OFFICE] CHARLES H. ROEHM, or WEs'r` NEW YORK, NEW JERsEY.

sAnIRoN.

Application filed August 10, 1923.. Serial` No. 656,750.

VTo whom t moycoiwerfn: l

VBe it known that I, CHARLES H. RoEHM, a citizen of the United States, and a resident of Vest New York, county of Hudson, State vof New Jersey, have invented an 1mproveinent in Sadirons, of which the following is a specification. v f

This invention relates to handles for electrically heated sad irons and refers more particularly -to means for controlling the current to the heating element of theiron.

An object of this invention is to provide a means by which the electric current is automatically switched loff whenever the iron is not in use, thus eliminating danger of fire and the burning out of the heating element. Another object of this invention 4is the provision of means whereby the heating circuit inay be retained closed whenv itis de-y sired to initially heat the iron.

Other objects and advantagesof this invention will be apparent from the Afollowing description taken in conjunction with the accompanying drawings which illustrate the preferred embodiment of the invention and in which similar characters of reference y designate similar parts in the several views.

In the drawings Figure 1V is a cross sectional view of the handle, showing the switch in open position,

Fig. 2 is a cross sectional view showing` Y the switch in closed'position, and

Fig. 3 is a sectional view .on the linev 3 3, Fig. 2.

Referring now, more particularly to the drawings, the numerals 1 and 8 designatev the usual handle standards which areA secured at their lower ends to an iron body (not shown), and support therebetween at their upper ends a handle, designated gen-v erally as H. p

The handle H comprises a tubular body formed of suitable insulating material and closed at each end by a removable plug, as shown at 3 and 4; standard 1 extending through the material of body and being secured to plug 3 by a screw 5 or the like. The plug 4 is provided with an aperture 6 extending therethrough, said plug being interiorly threaded to receive a bushing 7 of insulating material. The upper end of standard 2 extends through body of the handle H and is secured to the bushing 7. The usual conductors 8 and 9 are provided,

l conductor 9 passing ydirectly Vto the 4iron body through a plug 10. Conductor 8 passes into the handle as Will be hereinafter dgscribed; i y

The body of the handle. H is provided with a slot vor recess llwhich communicates with the interior of the handle, and positioned within said slot and pivotally mounted therein is an operating lever L formed of sol sections 12 and 13. 1n practice I have found it highly desirable to so form the slot 11 that the material out therefrom shall form the portion of the vlever designated as 12, this presenting a finished appearance andresulting in great economy of material. The section 13 is formed of insulating material and is secured tothe under face of section 12 by means of screws 14 orthe like. One end of section is formed into a cam 15, which cain, through pivot pin 16 mounts the entire operating lever, within the slot 11 and body of the handle C.

The cam is provided with positioning Vfaces 17 and 18 and a boss 19. As shown y clearly in Figs. 1 and 2, the faces 17 and 18 are adapted to contact withv the free end of a lia-t spring. 20 the other end of which is secured between a bearing plate 21 and plug 3 by means of a screw 22 o-r the like, The cam 15y is also provided with a contact face 18 arranged between'the boss 19 and positioning face 18.

Secured within thebody of the handle H by means of screws 23 or the like is an yinsulating support 24 which .supportsv thereupon by means of screws 25 or the like, a conductive contact spring 26, the free end of which is substantially U-shaped forming a contact portion 27 having a contacting face 28 which is adapted to contact with the bent-over end 29 of a C-shaped spring 30. The spring 30 is secured to the body of the handle H by means of `the before mentioned supporting block 24, and is provided with a rearwardly extending end 31 to which is secured a conductor 32 which passes through an insulator 33 extending through the bushing 7 and leads to the heating element of the iron.

The before mentioned conductor 8 also passes through the insulator 33 and terminates in a conductor 34 which yis connected to the conductive contact spring 26 by one of the screws 25.

The C-shaped end 29 of the spring V30 is I 'provided with a protrusioii V3,5 which is V Y adapted to contact with the boss 19 upon cercuit to the heating element is normally open that when the parts are in ,the position illusand should it be desired to initially heat the iron associated with the handle, the lever Ii is swung to the position illustrated in dotted lines in F ig. 2; the face 17 retaining the lever in the position shown byv contacting with the spring 18. It will be apparent that the face 18 will engage the contact portion or pr'otrusion 35 of the spring 30 and force vsection 29 thereof in contact with the U- shaped end of spring 26 thus closing the circuit through 34, v26 and 27 to 29, 30, 31, and 32to the heatingelement of the iron and out through lead 9.

The iron being initially heated, an operator thereof may then swing the lever kIi on its pivot to theposition shown in full lines Y in Fig. 2, whereupon boss 19 contactswith portion 35 of spring 30, making contact with spring 2 6 and closing the circuit as above described.

It will `rbe apparent that Contact between 2 8 and 29 will be auton'natically'A broken as soon as the -operators hand is withdrawn kfrom the 4handle because of spring 20 which will immediately return the lever to the position illustrated in lEig'. 1, for Itlie'rreason trated in full lines in Fig. 2 the spring 2O `is ,under tension. f

From the above, itrcanlalso ybe seen that thecam `is provided with faces which posi-V What I claim as new and desire to secure by lLetters Patent of the United States is:

1` A handle for an electrically heated sad iron or the like comprising a hollow body having a slot communicating with the interior thereof, a lever pivoted in said slot,

acam secured to oneend of said lever and provided with positioning faces anda boss, spring Emeans.cooperating with said faces whereby said cani and lever are automati* cally returned to their normal positions `or retained in a fixed position, and normally separated conductors `adapted to cooperate .with said cani whereby they are forced into contact.

2. A handle for an `*electrically heated sad i iron or the like comprising a hollow-body having a slot communicating with the inn terior thereof, a lever, a cam within said bodyand .mounting saidlever, electrical contact springs in contact.

8. A handle foran electrically heated sad iron or the like vcomprising a hollow tubular body, conductors lleading into said body and terminating in spaced contact springs at one end thereof, a lever mounted in said body, a cam ,secured to said lever, means on said cam adapted to cooperate with the contactsprings whereby the latter are manually and temporarily retained in contact, means also on said cam for positively retaining the cam in a vfixed position and said contact springs `rin contact, and resilient means for Y normally positioning said cam. Y,

In testimony whereof, I have signed my naine to `this specilication this 4th day of August 1923.

Y y CHARLES H. noEHM.

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