US1626616A - Sadiron - Google Patents

Description

1 626,616 May 3, 1927. W. H. LANAK 9 SADIRON Filed Jan. 20, 1926 IIIIIIIIIIIIII4 W/zL/AM h. LANA/r A'TTORNEY6' Patented May 3, 1927.

UNITED STATES WILLIAM H. LANAK, OF MINNEAPOLIS, MINNESOTA.

SADIRON.

Application filed January 20, 1926. Serial No. 82,523.

The primary object of this invention is to provide a sad iron of simple, inexpensive construction and one which cannot easily get out of order and require expensive renewals and repairs.

A further object is to provide improved means for mounting a temperature thermometer on the iron to the end that the heat of the base of the iron will be more rapidly and efliciently transmitted to the bulb of the thermometer and thereby the user of the iron will be able to more accurately determine the temperature of the surface that is in contact with the clothes being ironed.

Other objects of the invention will appear from the following detailed description.

In the accompanying drawings forming part of this specification,

Figure 1 is a longitudinal sectional view through a sad iron embodying my invention;

Figure 2 is a horizontal sectional view on the line 22 of Figure 1;

Figure 3 is a sectional view on the line 33 of Figure 2.

In the drawing, 2 represents the base portion of the iron having the usual pressing surface and provided with a grid 3 of suitable refractory matcrial wherein is embedded the usual heating element 4 such as a strand or coil of wire of high resistance, one end of which is provided with a terminal 5 and a bracket 6 through which and said terminal a screw 7 passes intoa plate 8 seated on the grid 3. A second terminal 9 is connected to a stud 10 in the switch plug socket 11 that is mounted in a cover 12 and from this stud 10 the terminal extends to a thermostatic bar 13 mounted on a bracket 15 and secured thereto by suitable means such as a set screw 16. The thermostatic bar extends horizontally within a chamber 17 that is formed between the grid and the upper portion of the iron and projects under the bracket 6 near a plate 18 that is supported on abutments 19 carried by the gri at the opposite end thereof from the terminals of the heating coil. A finger grip 20 is mounted in the cover 12 and a contact screw 21 is adjustably mounted in said finger grip and passes through the bracket 6 into contact with the end of the thermostatic bar 13. \Vhen this contact screw is in engagement with the thermostatic bar the circuit is closed through the heating element and the iron will become hot. The adjustment of the contact screw will regulate the period of contact between it and the thermostatic bar and thereby control the heat of the iron.

A temperature thermometer 22 is provided 111 the upper portion of the iron where it can be conveniently assembled by the user and has a downwardly turned bulb portion 23 fitting within an opening in the plate 18, and a tube 24 preferably having closed walls, has its upper end enclosing this bulb and depends therefrom through the grid 3 and to the base of the iron and forms a direct means for conducting the heat of the base to the temperature thermometer so that when the iron is in use, the user will have a more accurate knowledge of the correct temperature of the base and the surface that is in contact with the clothes than would be possible where no direct means is provided for transmitting the heat of the base directly to the bulb of the thermometer. This tube 24 extends up through the chamber 17 and encloses the bulb of the thermometer so that as the base becomes hot, the heat is directly transmitted to the bulb where the user of the iron can conveniently read the temperature and ascertain very accurately the temperature of the surface that is in contact with the clothes. A bolt 25 secures the block 26 to the base and bolts 27 and 28 pass through arms 29 and 30 and secure them to the block 19 and the base, a suitable handle 31 being mounted on said arms for convenience in manipulating the iron.

I claim as my invention:

1. A sad iron comprising a base section having a heating element thereon, a cover for the iron, having mounted therein a thermometer and a tube extendin through the heating element, the bulb of said thermometer removably engaging within said tube at the to 2. A sad iron comprising a base section and a heating element therein, a temperature thermometer having a bulb and means encircling said bulb and extending to said base section for transmitting the heat directly from said base section to said bulb. I

3. A sad iron comprising a base section having a heating element and means for controlling the delivery of an electric current thereto, a temperature thermometer having a bulb and a tube having one end encircling said bulb and the other end of said tube stepped into said base section for gralnsmitting the heat thereof directly to said 4 An electric fiat iron including a heating element superposed upon a base piece, and a cover for the iron, a tubular member traversing the heating element stepped in the base and extending upwardly therefrom, and a thermometer secured upon the cover and directly visible, and having a bulb removably fitting within and closing the upper end of the tubular member, whereby the heat is directed upwardly against the bulb, and whereby the bulb can be unobstructedly disengaged from the tube when the cover is removed 5. An iron having a base piece, a heater element superposed thereon, a block upon said heater element having a recess partially exposing the heater element, a thermo element attached within the recess and overlying the exposed portion, of the heater element, and adapted to flex theretoward when excessively heated, a bracket within the recess having an arm overlying the thermo element, a cover, an adjusting thumb piece rotatable therein, and having a circuit-making contact having threaded connection with the bracket arm, and adapted to flex the thermo element, and circuit connections between the heater element thermo element, and bracket, including plug-in connections.

6. An iron having a base piece, a heater element superposed thereon, a block upon said heater element having a recess partially exposing the heater element, a thermo element attached within the recess and overlying the exposed portion of the heater element, and adapted to flex theretoward when excessive- 1y heated, a bracket within the recess having an arm overlying the thermo element, a cover, an adjusting thumb piece rotatable therein, and having a circuit-making contact having threaded connection with the bracket arm, and adapted to flex the thermo element, circuit connections between the heater element, thermo element, and bracket, including plug-in connections, a tube traversing the heating element and stepped in the base, and a thermometer secured in an opening of the cover in full view, and having bulb loosely engaging the upper end of the tube as a stopper.

In witness whereof, I have hereunto set my hand this 17th day of January, 1926. WILLIAM H. LANAK.

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