US2273079A

US2273079A - Electric iron control

Info

Publication number: US2273079A
Application number: US360845A
Authority: US
Inventors: Wright John
Original assignee: Individual
Current assignee: Individual
Priority date: 1940-10-11
Filing date: 1940-10-11
Publication date: 1942-02-17
Anticipated expiration: 1959-02-17

Description

J. mlm-@HT 2,2735@ ELECTRI C IRON CONTROL Filed Oct. ll, 1940 3 Sheets-Sheet l A Homey Feb- 17, 1942. J. wRnam'` gm@ ELECTRIC IRON CONTROL III 4.3"

A Harney Feb. 17, 1942. J. WRIGHT u 2,273,53'39 ELEGTRI C IRON CONTROL' Filed oct. 11, 1940 3 sheets-sheet 3 Patented Feb. 17, 1942 UNITED STATES PATENT OFFICE ELECTRIC IRON CONTROL John Wright, Parkland, Mil.

Application October 11, 1940, Serial No. 380,845

Clnims.

This invention relates to new and useful improvements in electric iron controls, the sub- .lect matter here being similar to my application Serial No. 259,278, illed March l, 1939.

'Ihe principal object of the present invention is to provide an electric iron supporting stand which incorporates electric current cut-oil' means adapted to shut ot! electricity to the iron when it becomes overheated while resting upon the stand. g

Another important object of the invention is to provide an electric:V iron control whichwill beautomatic in operation.

Another important object of the invention is to provide an electric iron control which will \\\\he`substantially fool-prooi in operation.

' lng specification.

In the drawings- Figure i represents a side elevational view of the control assembly.

Figure 2 is a top plan view.

Figure 3 is a longitudinal sectional view through the shell of the control.

Figure 4 is a horizontal sectional view through the control.

Figure 5 is an end elevational view.

Figure 6 is a cross section on the line I6 of Figure 4. Y

Figure 'I is a fragmentary detailed sectional view showing the rheostat means.

Figure 8 is a fragmentary detailed sectional view fragmentarily showing the switch means and means for adjusting the trip contact.

Figure -9 is a diagrammatic view showing the electrical connections between the electrical devices involved.

Referring to the drawings wherein like numerals designate like parts. it can be seen that numeral l denotes a base preferably oi some suitable insulation. the base t has a continuous groove for receiving the lower preferably beaded edge of a shell t which tapers to a blunt point 1, at which point in the side walls and top thereof are openings l through which light from a lamp 8 in the shell can pass.

U-shaped' members I0 attached to the top side of the base 5 are hingedly connected by a pin il to the ieg members of .U-shaped members i2, which, in turn, have upstanding arms i3 formed to engage a horizontal bar I4 of insulation. Bolts iii are preferably employed for securing the bar I4 to the arms i3 Numeral It generally refers to the switch means which consists or an upstanding contact linger I1 swingably mounted as at I8 on a U-shaped member I9 rising from the base 5 and a spring 2li serves to urge this nger I1 toward a swingable contact nger 2|, and against said ilnger 2| when the upper end of the finger 2| is abutting the free end ot a heat responsive thermal element 22, this element 22 being supported by a bracket 2l which has a face portion 24 attached to the base l. This bracket 23 has a plate portion 25 and a screw or stud 26 is at- Vntached to this plate 26 and extends through a The top suriace ci slot 21 in a broad portion 28 of a lever 29, the lower portion of which has a foot 30 to which the lower end of the contact finger 2l is pivoted as at 3|. The other end of this lever 29 extends through the rear wall of the shell 6 as suggested in Figures 3 and 4 and is there equipped with a knob 32. Obviously by adjusting the lever 29, the ilnger 2l can be adjusted 'so thatI it will not be released until the thermal element 22 has moved to a releasing position under a predetermined temperature.

As can be seen in Figure 8, the bar I4 of insulation extends under the thermal element 22.

The bar i4 is equipped with reset means which consists of an elongated slide 33 operating through a guide Il located on a bracket 36 which has a horizontal portion 31 along which the slide Il is slidably supported. This slide l2 has a reduced portion l! deiining a shoulder 3l which abuts the bar I4 of insulation.

The outer end or the slide Il has a flanged button 4I Ioperative through an opening in the shell I. Located on the slide 33 and interposed between a collar 4i thereon 'and the guide 34 is a coiled compression spring 42 which serves to normally maintain the button 40 forced outwardly to the position shown in Figure '1.

Mounted on the forward portion of the base l is a lamp socket 43 for supporting a bulb 8.,

As can be seen in Figure l, numeral 44 denotes an electric iron positioned on the shell B. This iron 44 has a cord 45 terminating in a plug 4B .which is inserted into a socket 41 on the rear end of the shell 6. As shown in Figure 5, numeral 4I denotes the current supply cord made up of the positive and negative wires 49 and 50 (see Figure 9). The positive wire 49 is connected to one side of a snap switch 5I, while the other side of this switch 5I is connected to the positive side of the socket 41. A jumper extends from this side of the' socket 41 and is denoted by numeral 52, theseme extending to a