US2512062A - Sadiron - Google Patents

Description

R. l. HUFFMAN June 20, 1950 SADIRON 2 Sheets-Sheet 1 Filed July 2, 1945 IIII fizz-622201:-

w g a 2 June 20, 1950 1, HUFFMAN 2,512,062

SADIRON Filed July 2 1946 v .2 Sheets-Sheet 2 127?:72207: 12755 62 f/Yaffmau,

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Patented June 20, 1950 SADIRON Russell I. Hufiman; Dover, Ohio, assignor, by

mesne assignments, to Knapp-Monarch Company; St. Louis, Mo., a corporation of Delaware Application July ,2, 1946; Serial No. 680,925

My present invention relates to a sad iron having a number of features which make the iron desirable from the housewifes standpoint and comparatively inexpensive from the manufacturers standpoint.

One object of the invention is to provide an iron which has a relatively cool top, the top member of the iron being formed of Bakelite or the like, and this top member being connected to the sole plate by means of a plurality of spaced 1 apart plates between which air may circulate to prevent the high temperature of the sole plate being directly conducted to the top member of the iron.

'Another object is to provide the top member with fluting or other surface irregularities which minimize contact with the operators fingers or hand when accidentally touching the iron, thus further reducing the possibility of receiving a burn.

Still another object is to provide a sad iron structure which has side wings for the purpose of permitting the iron to lie on its side instead of up-ending it rearwardly in the normal manner when the iron is laid aside during the ironing process.

A further object is to provide a handle for the iron attached to the top member thereof, and to 2 Claims. (01. 219-25) provide a simple means of securing the top memher in position by a hook at the front end of the iron and a single screw at the rear end thereof, the top member, after the screw has been removed being slidable endwise for engaging the hook.

Still a further object is to provide an arrange E keeping the knob cool enough to adjust without any discomfort as in the usual types of thermostat where the knobs are directly connected to thethermostat adjusting screws and which knobs attain a relatively high temperature in spite of thefact that they are made of insulating material.

A further object is to provide a bushing on the thermostat operating shaft which may be removed for permitting endwise sliding of the top member 01; the iron during di'sa'ssembly and which prevents wobble of the thermostat shaft and dial when the iron is assembled.

Further additional objects are to provide an arrangement of parts in a sad iron which permit of relatively easy assembly and to provide a sole plate havin a concave portion permitting the possibility of getting the sole plate close around collars of shirts and similar curved surfaces for proper ironing thereof. I

With these and other objects in view, my invention consists in the construction, arrangement and combination of the various parts 'of my device whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawings, wherein:

Fig. 1 is a plan view of a sad iron embodying my present invention, a portion of the handle being broken away to show the sight window for the thermostat dial and the thermostat knob;

Fig. 2 is a vertical sectional view on the line 22 of Fig. 1.

Fig. 3 is a vertical sectional view on the line 3-'3 of Fig.2.

. Fig. 4 is a bottom plan view of the thermostat dial per se.

Fig. 5 is a plan view of the sole plate of the iron showing the thermostat thereon and the terminal bars which extend upwardly for connection to the service cord. v

Fig. 6 is a similar plan view showing a casing member and a pair of plates added to Fig. 5, and also the thermostat dial and its illuminating light added thereto.

On the accompanying drawing I have used'the reference numeral 10 to indicate a sole plate. The sole plate [0 has imbedded therein the usual coiled resistance wire I 2 surrounded by insulating material Hi to constitute a heating element for the sole plate. On the sole plate a thermostat of ordinary construction is provided and the thermostat is held in position by a strap 16.

,Over the heating element a sheet metal casing I8 is provided, and above the casing 18 heat radiator plates 20 and 22 are shown, spaced from each other and from the casing l8. The spacing is accomplished by means of projecting bosses 24 riveted together as at 26. The assembly of casing it! and heat radiator plates 20 and 22 is then held in position by a pair of screws 28 (see Fig. 3) threaded into the strap Hi, the strap being provided with a pair of threaded openings 30 for this purpose. l A top member 32 is provided to cover the heat radiator plate 22, and this top member is preferably made of Bakelite or similar insulating material. Secured to the top member 32 is a handle 34, there being provided a single screw 36 adjacent the front end for fastening the two together. The assembly of top member 32 and handle 34 is then secured to the heat radiator plate 2 2 by means of a hook 38 secured as by a screw 4l l-,to the front of the top member 32, and a single screw 42 adjacent the rear end of the handle.

The plate 22 has a square opening 44 to receive the hook 38 after the forward end of the hook has been inserted through the square opening and then pushed forwardly to position shown in Fig. 2. When in this position the screw 42 isthen inserted thru a cover plate 41 for the rear end of the handle and threaded into a bracket 48 secured to the plate 22.

The plate 46 covers a ball member 50 through which a flexible sleeve 52 extends for the service cord 54, as shown in my co-pending application Serial No. 741,474 filed April 15,1947.

The service cord 5a is connected as shown in. Fig. 2 to terminal brackets 55 and 58 for the thermostat l5 and the heating element l2 in series with each other in the usual manner. A terminal bracket 60 is also provided for the heatingelement, the brackets 59 and 60 bein connected with the ends of the heating element and anindicator light 62 shunting these terminals as by connection thereto through wires 64 and B6.

A socket 68 is provided for the indicator bulb 62. The. socket 6B and the wires 64 and 66, as well as the bulb 62 are not subjected to excessive heat because of the cooling effect of .air passing between the casing l8 and the plate Zil, andbetween the plates 2!] and 22, and therefore can be of ordinary construction whereas if they were located in the usual iron shell the temperature would be too high.

For adjusting the thermostat I5 I provide a control knob mounted on a thermostat shaft I2. The shaft 12 is connected to a dial I4 and the dial in turn is connected to the thermostat adjusting screw 16 by a bracket 18. The upper end of the screw 16 is fluted so that the dial can be adjusted to the proper position thereon, and. the bracket 18 provides a spacing between the screw 16 and the dial 14. that minimizes heat transmission from the thermostat to the knob ill. The knob, therefore, remains comparatively cool so it can be adjusted with comfort, and the dial 14 is also comparatively cool so that its surface is not discolored by heat. Accordingly the dial canbe enameled white or some other suitable color with lettering such as shown in Fig. 6 providedthereon as the indicia for determining the position of the thermostat. The indicator light 62 it will be noted, is close to the edge of the dial so as to illuminate it and by shunting the heating element in the iron, the light is only on when the heating element is on.

A' sight .opening Be is provided in the top member 32 through which the dial can be seen and the sight opening may be covered as by a piece of glass or transparent glass 82. v

The top member 32 has an enlarged opening 84 surrounding the thermostat shaft 12 as shown in-Fig. 2, and this is filled with a bushing 86 to prevent wobble of the shaft 12 During dis-assembly of the iron, after the knob 10 is removed from the shaft "I2 as by loosening the set screw 88 ,the bushing 84 may be removed so that the top member 32 canbe shifted for unhookingthe book 38 from the edge of the opening 44. Thus assembly and dis-assembly is facilitated, and at the same time a good bearing is provided for the thermostat shaft in the form of the bushing 86.

The top member 32 as shown in Fig. 1 is fluted, or may be provided with other types of surface irregularities as indicated at 90, so that if the top, member isaccidently. touched bythe fingers or the handgthe usual area of touch is-minimized, thereby reducing the possibility of becoming burned by the top of the iron. Additionally, the top is kept relatively cool by reason of the air through which the iron passes carrying away heat from the casing l8 and the radiator plates 20 and 22.

The top member 32 is provided with side wings "92 which may be formed of heavy wire or rod material and attached thereto as by rivets 94 shown in Fig. 3. The wings 92 are so positioned that the iron can be laid on its side instead of up-ended rearwardly as is usual in connection with sad irons. When lying on its side the line of contact will be as shown by the dash lines 95 in Fig. 3, the iron thereby being adaptable for lying on either the left side or the right side. Less motion and less lifting of the iron is required by this method of laying the iron aside, than by the up-ended method.

construction with its side lay feature just described further lends itself to the provision of an inwardly curved surface indicated at 98 for the sole plate l0. Such surface permits close ironing around collars of shirts and similar curved surfaces thereby increasing the efilciency of the iron.

From the foregoing description it will be obvious that I have provided a sad iron having a number of desirable features. The top of the iron remains comparatively cool, and the use of side wings 92 permits laying of the iron on its side when not in use. The assembly of the parts has been simplified considerably. An easily readable dial due to its comparatively large size and the illumination thereof is provided without unnecessarily complicating the structure of the iron. The sole plate is so designed that it may iron closely adjacent curved surfaces with a max imum of contact due to the concave character of the portion 98 of the sole plate, whereas in mostirons the edges of the sole plates are convex.

Some changes may be made in the construction and arrangement of the parts of my device without departing from the real spirit and purpose of my invention, and it is my intention to cover by my claims any modified forms of structureor use of mechanical equivalents which may be reasonably included within their scope.

I claimas my invention:

1. In an ironstructure, a sole plate, a housing therefor, a top member for said housing, a handle on said top member, said top member having means of coaction with said housing which is operative to connect the two together when the top member is placed on the housing and moved in one direction, a screw cooperating between said handle and said housing for connecting the two together and'for moving said top member in said direction,said top member having an enlarged opening, a thermostat on said sole plate having a shaft extending upwardly through said enlarged opening, and a sleeve for journalling said shaft, said sleeve being removably positioned in. said. enlarged opening whereby when said sleeve is removed, .said topv member may be shifted in a direction opposite said direction and said screw may be removed for disconnecting said top member from said housing 2. In an iron structure of the character described, a sole plate, a housing therefor, a top member for said housing, a, handle on said top member, said top member having an enlarged opening and means of coaction with said housing which is operative to connect the two together when the top member is placed on the housing and moved in one direction, a, second means of cooperation between said handle and said housing for connecting the two together and moving said top member in said direction, a thermostat on said sole plate having a shaft extending upwardly through said enlarged opening, a sleeve for journalling said shaft, said sleeve being removably positioned in said enlarged opening, and a knob on said shaft to adjust said thermostat and keep said sleeve in said opening.

RUSSELL I. HUFFMAN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 671,105 Cosler Apr. 2, 1901 1,631,779 Wintrob June 7, 1927 1,939,774 Hofierbert Dec. 19, 1933 1,996,157 Jeppsson Apr. 2, 1935 2,111,609 Bolesky Mar. 22, 1938 2,214,209 Triplett Sept. 10, 1940 2,277,034 Bisley Mar. 24, 1942 2,313,382 Kistner Mar. 9, 1943 2,353,151 Elsenheimer July 11, 1944 2,384,644 Schreyer Sept. 11, 1945 2,415,795 K00). Feb. 11, 1947 FOREIGN PATENTS Number Country Date 489,708 Great Britain Aug. 2, 1938

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