USRE21632E

USRE21632E - Electbic steam iron

Info

Publication number: USRE21632E
Authority: US
Priority date: 1938-03-05
Publication date: 1940-11-26
Also published as: US2179259A

Description

Nov. 26, 1940. 41.. L. JONES v ELECTRIC STEAM IRON I Original Filed March 5, 1958 I? Sheets-Sheet 1 INVENTOR 1507594. o/Y5:

III

ATTORNEY Nov. 26, 1940. I. L. JONES Re. 21,632

ELECTRIC STEAM IRON v Origihal Filed' Marc h 1938 S Sheets-Sheet 2 l NVEN TOR BY. m/o L2; M

- ATTORNEY Nov. 26, 1940. L. L. JONES ELECTRIC STEAM IRON Original Filed March 5, 1938 3 Sheets-Sheet 3 INVENTOR 63717? L JU/YZS ATTORNEY UNITED I srA-TEs' PATENT "OFFICE p 21,032. macs-arc s'rssu moiv leaterLJoneaOradelLNJ. orlglnal No. airbase, dated November 1. 1m. Serial No. 194.0155, M 5. ms. tum

rel-us Septemberams. Sol-lathe.

:2 Claims. (cl. zit-'25) sought to be achieved by'the present invention- 10 h the obtaining of'that distribution and supp tothefullaraofthe'ironingsoleorplateof" heat and moisture (steam) which will enable the production of uniform ironing temperatures on the goods or material under ironing treatment 18 and the uniform evaporation of the moisture supplied thereto. r g

A' further prime object of the invention resides 1 in the provision of an electric steam iron in which the generation of the required heat and steam is 20 accomplished to meet the best needs of service.

On this phase of the problem,-th e desiderata sought to be achieved by the invention are the abilities (I) to rapidly bring (initially) the heating system and the steam generating system up to conditions of ironing use, (2) to independently control the steam generating system so thatythe supply of moisture to the goods under ironing treatment may be discontinued and restarted at will, without interfering with the operating conditlons of the heating and (a) to maintain the steam generating system in an operating state (particularly during periods of discontinuance of steam supply) so thatwhen-restarted, steam will be supplied therefrom to the ironing sole or plate instantaneously.

Other important objects of the invention center about (al the provision of an electric steam iron in which the above referred to problems of securing the. desired generation and distribution 40 of heat and steam are solved by simple mechanism coordinated to produce an electric steam iron of large power, small weight, correct balance and neat appearance, (1 the provision of 45 anelectric'steamironofthischaracterin which the component parts are constructed and related soastoenableouickaccesstothesame for-use, repair and replacement of parts, and (c) -the provision of such an electric steam iron embodying means for giving audible evidence of the proper operation and the necessity for refilling the steam generating receptacle.

To the accomplishment of the foregoing and such other obiects as may hereinafter appear,

' the invention pertains to the electric steam iron and the combinations of elements thereof, as sought to be defined in the appended claims, and as described in the following specification taken in conjunction with the drawings, of which:

Fig. 1 is va. perspective view of the electric 5 steam iron of the present invention showing the external appearance thereof;

Fig. 2 is an elevatlonal view thereof with'parts shown in section and other. parts broken away.

disclosing the interior construction thereof:

Pig. 3 is a top plan view thereof with the housing casing and handle removed therefrom;

Fig. 4 is a perspective view showing the ole-- ments of the heating and steam producingsystems in displaced or exploded condition;

Pig. 5 is a bottom plan view of the steam distributing chamber unit;

Fig. 6 is a wiring diagrammatic. view showing the electrical connections between the parts of the electric steam iron; and

Fig.7isaviewofadetail.

The achievement of the stated objects of the invention which deal with the proper distribu- 1 tion to the ironing sole or plate of the required heat and moisture and the control thereof to meet the varying needs of service, may be shown by describing, in sequence, the structural and functional relation between 1) the heating system and the ironing sole,'(2) the steam producing system and the ironing sole, and (3) the heating system and the steam producing system.

' In the-customary irons, the uniform temperature desired on the goods is secured by using a large mass of metal (for the ironing sole) with.

a heater distributed over substantially all of the 6 area of'the metal. In the iron of the present invention, a small mass of metal for the ironins sole or plate is used, the heater (a. heater unit) is concentrated or localized at the nose of the iron, and a heat distributor is employed for ther- 40 mally connecting the heater .unit with the ironing sole, these parts .being so constructed and coordinated that the intended heat distribution. for producing the uniform ironing temperatures is obtained. This is best shown in Figs. 2 and 4 of the drawings, the ironing sole comprising the flat,.relatively thin piategenerally designated as lo, the heater system consisting of the unit generally designated as I 2 having an area-substantially co-extensive with the ironing sole or plate It, the said heating system being-thermally connected to the ironing sole by a thermal network comprising in part an intermediate member'generally designated as ll providing selected heat conducting channels between the heating system erid or nose portion thereof.

llimdtheironingsolelhthesaid ternbeingalsoconnectedinpart amo e ironing sole by additional heat conducting chan-" .that each place serves anapproximately equal area of the sole. There is a large temperature gradient from nose utor; at the nose the temperature-is 600 F., at the central region the temperature is about 450 F., and at the heel the temperature .is

about 350' F. I! a uniiorm sole-temperature (such as 300 F.) is desired, the thermal channels: defined by the conducting thermal network are predeterminedly made to diil'er in heat conduc"-""' tivity. 'In the exemplified structure, these conducitivies are so determined and fixed that the sole M has a uniform temperature of about 300 F. over'its area, except at the front end thereof, where the temperature is higher. All of this is accomplished by having ten (for example) thermal conducting channels:

seven of which are through the material of the intermediate member l4 (the steam distributor), and the remaining three or which are directly into the sole. These latter three are at the heel of the iron, and consist of three similar cast iron masses integral with the sole l0, forming the bosses I to which the finger-like projections l formed at the heel of the heat distributor I! are directly attached by means 01 the securing screws 20. channels are provided by the seven socket-

recesses

22, 22 formed in the sole II with which mate seven plug-

projections

24, 24 formed in the bottom wall of the member l4 (see particularly Figs.4 and the top wall of the said member l4 being in turn provided with the plug-

projections

26, 26, the front one of which connects directly. with the heater oi the heating system, and the'other five of which mate i with socket-

recesses

28, 28 formed in the body of the heat distributor II.

The heating system I! consists of a metallic unit (preferably an aluminum casting) having the heat generator in the form oi an electric heater concentrated or localized at the front The main body of this unit is flat, as clearly depicted in Figs. 2 and 4 of the drawings, and the front end thereof is provided with the enlarged

split collar sections

30 and 82 which receive therebetween the electric heater 34, which latter is firmly secured in position by clamping together the

collar sections

30 and 32 by meansof a screw 36. The

heater 14 consists in detail ot a receptaclelike holder 0 having a heater element b wound on and baked to the outside wall thereof and a protecting outer shell c enclosing the heater element, as most clearly shown in Fig. 2 of the drawings. This localized or concentrated heater 34 operates at a relatively high temperature, and feeds heat to all parts of the heat distributor II, the heat flowing thence through the thermal -network described, into the selected points or places of the ironing sole l0. r

The desired thermal flow --between the heat distributor i2 and the ironing sole i0 is determined and fixed by suitable design of the deto heel'in the heat 'distrib somewhat The other seven thermal scribed thermal channels. At theheel or the iron, wherethe temperature diii'erence (between I the heat'distributor and the ironing sole) is about 50. F., the heat conducivity oi! the thermal channels should be about three times as great as that of the channels in the central part of the iron, where the temperature difference is about 150 F. At the nose of the iron, where the temperature difference is larger, the heat conductivities of the channels have sopieiletermined as-to secure the desired temperature afithenose oi the ironing sole. 'I'hese interrelated results are secured by directly connecting the finger-like projections oi the heat distributor to the integral bosses it of the ironing sole as already described, and by connecting the body of the heat distributor I2 through the intermediate member II to the remaining part of the sole ill by way of the material of the intermediate member l4 and the tubular members or liners 30, 3 8 (see Fig. 2) fitted interiorly to the plug-projections formed in the intermediate conducting member l4. These liners 38' may be made solid or split. depending upon the heat flow desired, the liners being shown solid in the structure exemplified in the drawings. The thermal flow at all oi the plug-recess connections is through the top and bottom walls of the intermediate member l4, and through the direct connections between these walls provided by these liners or

tubular members

38, 38. As shown in Fig. 2, or the drawings, one of these connections is directly between the heater 34 and the'ironing sole Ill.

The combination of the steam producing system and the ironing sole comprises-a steam generating unit generally designated as 40 connected by means'of a steam distributor to selected points or places in the sole ill for carrying a supply of moisture in the'iorm oi steam to the selected places in the ironing sole. The steam distributor consists oi a flat casing extending over a substantial part of the area oitheiron ing sole, the said casing defining a shallow steam conducting chamber. This steam distributor casing is the intermediate member l4 already described, which forms part of the thermal network connecting the heating system with the ironing sole. This steam distributor casing I4 comprises in detail, a body having the triangular configuration best shown in Figs. 4 and 5 .of

'the drawings, providing upper and lower wall sections d and e, the marginal edges of which are sealedby a lock seam joint I. The top wall d is formed with a steam ingress opening g, and the bottom wall e is formed with a plurality of suitably distributed steam egress openings, h, h, these openings being formed in the

plugprojections

24, 24 as most clearly shown in Figs. 2 and 5 of the drawings. Connected to the top wall (1 of the distributor casing is a threaded nipple 42 supporting a steam channel tube 44 orificed as at 46 at its upper end, the threaded nipple being secured by any suitable means, as by the nut 48, to the casing wall d at the steam ingress opening g thereof (see particularly Figs. 2 and 4) The tubular members or liners 38 are each suitably provided with

orifices

50, 50; and the ironing sole I0 is formed at the selected points or places thereof with the openings or orifices 52, 52'isee Fig. 2) arranged to align with.

or tube 44, flows into and fills the steam distributor chamber I4, and flows thencethrough the orlflces 50 of the liners 3!, through the steam egress orifices h, h 01 the distributor, and then into and from the steam openings 52 in the ironing sole at the selected places distributed over the area of the sole. The location oi the steam distributor u between the heat distributor l2 and distributor, and the ironing sole so as to produce superposed elements which not only carryout the described effective thermal connection between the heat distributor and the ironing sole, and steam connection between the steam distributor and the ironing sole, but which in combination occupy a short vertical space permitting ultimately of the production of a compact ironing unit. When these elements are physically connected together as best shown in Fig. 2

of the drawings, such a compact organization is produced. These elements are effectively united by press-fitting the plug-projections I4 and 26 into the socket-recesses 22 (oi the-sole) and 28 (of the heat distributor), and by the screw attachmentprovided by the screws". In this way these elements are connected together physically,

thermally, and for steam distribution. It will be noted that the liners II, 88,, besides serving as thermal conducting elements, also serve as a I means for providing a strengthening form for the plug-projections 24*, and .as a strength ening spacing means for the walls d and .e of

I the. steam .distributor l4.

Thesteam generating unit 40 is constructed and designed and related to the heating system of the iron in a way-t0 carry out the other stated objects oi the invention, which is to permit rapidly bringing both the heating system and the steam generating system up to conditions'of I ironing use. to independently control the steam generating system so that the supply oi'tmoisture to the goods may be discontinued and restarted at will,- without interfering with the operating conditions or the heating system, and to maintain the steam generating system in an operating state (particularly duringperiods or discontinuance of steam supply) so that when restarted.

steam will be supplied therefrom to the ironingg I sole or plate instantaneously..

.' Toaccomplish'these results, the steam generating system Ill comprises a receptacle (preferably made of copper) haying a body 1 and a bottom It joined by a lock seam thereto, the said body i beingprovided with a-fllling opening 56, and the bottom It being provided with an orifice 58 through which is inserted the nipple l2 and the channel tube 4! supported thereby, these being secured to the bottom It or the receptacle 54 by means of a nut and washer 80, as most clearly shown in Fig. 2 of the drawings. The receptacle 54 is provided with a separate electric heater. This is desirably accomplished by fitting a heater unit 02 (substantially similar in construction to the heating unit 34) to the receptacle N, the bottom 1: oil the latter being heater unit a (see particularlym '2 m4).

Inadditiontothus providingaseparateheater.

,mmm spaced vertically therefrom, as best shown in Fig. 2 of the drawings. The heater unit I 62 is connected in a local circuit (as will be de- I scribed hereinafter) controlled at will by the operator by means of a switch 66, which is'located 'inthe handle 68 of theironsoas-tobereadily accessible toand manipulableby the user.

By means of this recited construction, rate concentrated heaters are employed for rapidly initially b g l the heating system and the steam generating system up to conditions of ironing use, and the steam generating system may be independently controlled so as to discontinue or restart at will by manipulation of the switch 66, the supply or steam, without interfering with the operating condition or the heating system. The thermal relation between the steam receptacle 54 and the heat distributor -l2 is such that when the steam generating heater 62 is shut oil, suiiicient heat will be conducted through the nipple l2 and will be radiated from the heat distributor II to the steam receptacle 54 to keep the water therein at or close to the boiling point, so that as soon as the heater .2 is restarted by the reverse operation of the 4 switch 68, steam will be instantaneously supplied to the ironing sole.

The electrical wiring system or the unit is shown in Fig. 6 of the drawings. The ironing heater II is connected to the power line through.

heater element 34,- the conductor 84, the binding post 86 and back to the other side of the power line 88. The steam generating heater is connected in a local circuit controlled by the switch 68, the said circuit being traceablefrom one side oi the power line 1!, binding post I4, conductor I8, binding post 80, bonductor 90, the heater element 6!, conductor 92, binding post 9|, conductor 98, switch 65, conductor 98, binding post II, and back to the, otherside oi the power line #8. The insulating plate 18 carrying the stated binding posts is housed in the rear leg oi the handle 68, asbest shown in Fig. 2 of the drawings, and these parts are enclosed by a removable plate I00 held in position by the attaching screw I82. The thermostat Ill physically comprises'a thermostat unit (see Fig. 3) which is attached to the ironing sole liland which is designed to open I the circuit of the heater 34 when the desired sole temperature is exceeded. By means of this ar-' rangement the heating systemv and the steam producing system operate independently and are.

I vided in the top of the shell. When'the water levelinthereceptadlell ishighthislooseshell givesanaudiblesignal byrattling, and whenthe water level is low, this audible signal stops. thus indicating to the user that the'receptacle should be refilled.

The parts of the iron are suitably enclosed by an enclosing casing I which carries the handle ll, the said enclosing casing being attached to the sole ll by means of two screw posts I" the lower ends of which are screwed into the bosses Ill formed integrally with the sole Ill,-

and the upper ends of which receive the sleeve screws III. i v

For the purpose of minimizing heat transfer by radiation from the high-temperature heating element 14 to parts of the handle I, or to the enclosing casing II, I preferably employ a high-' ly polished m'etal shield between the heating 'ele-] 'ment II and the enclosing casing m.

This metalshieldisbestshowninl lgs. 2 and4ofthe drawings. and consists of a suitably formed shell I ll surmounting the heater I! and its supporting

collars

30 and 32, the said shell being held in position by the posts I", the lower threaded portions of which are received by orlfioed ears The holes H8v ll formed on this shell Ill. inthisshellservetopermitthepassingthrough of the conducting wires to the heater unit 34 (see Fig. 2)

A'further detail features of the present invention comprises the use of a spring-held filler cap somountedastopermitveryquickaccesstothe.

steam receptacle 54 to fill or empty the same. This filler cap comprises a cap I20 having a suitable gasket therein adapted to fit over the filling opening 58,01 the receptacle 54, the said cap being loosely secured at its center to a resilient or spring arm I22 pivotally anchored at its in end I to a-post I26 secured to the enclosing casing I, and provided at its near end with a finger piece or handle I". This spring-held filler cap may manifestly be quickly moved between open and closed positions by, lifting the I handle I and rotating the resilient arm I22 about its pivot.

The structural andfunctional features of the improved electric steam iron of the present invention and the many advantages thereof, will in the main be fully apparent from the above detailed description. The ironing sole I I and the system defined by the heater and the heat distributor ii, are so combined as to enable the production of uniform ironing temperatures on the goods under ironing treatment. The ironing sole II is so combined with the steam distrlbutor ll as to produce the issuance atthe desired points on the sole ll of superheated steam, thisbeingsorelatedtotheheatingsystemthata uniform evaporation of the moisture supplied to the goods takes place. Theprovision of separate or localised heaters 34 and I for the heating and steam generating spectively; enables the operator to rapidly'bring thehe'atingsystemandthesteamgmeratingsystem up to the state of ironing we. The arrange- .mentofthesteamprodiazingheaterllinalocal heated condition from the ironing sole. The elements of the heating system, steam producing system and the'ironlng sole are so organized and coordinated as to produce an electric steam iron of large power, small weight, correct balance, and

neat appearance. Ready access may be had to refill or empty the steam, producing receptacleby a simple manipulation of the spring-heldfiller cap III. The various elements of the iron are designed and constructed so as to be capable of ready manufacture and simple assembling steps, theorganization being such that the parts may be readily disassembled by the user or the repair man, when repair or replacement of any part is needed.

It will be apparent that many changes may be made in the structure of the parts and their functional interrelation, without departing from the spirit of the invention defined in the appended claims.

I claim:

1. An electric steam iron comprising a heat distributor, an electric heater therefor localized in one region thereof, a steam generating receptacle, a separate electric heater for the steam generating receptacle, the said receptacle being also thermally related to the said heat distributor.

2. An electric steam iron comprising an ironing sole, a heat distributor thermally connected to said sole, an electric heater localized at the nose of said heat distributor, a steam generating receptaclasa separate electric. heater for the steam generating receptacle, the said receptacle being thermally related to. the said heat distributor at the heel of said distributor.

3. An electric steam iron comprising a heat distributor, an electric heater'therefor localized in one region thereof, a circuit for said heater, a steam generating receptacle, a separate electric heater for the steam, generating receptacle, a

local circuit for said separate heater including a. control switch individual thereto, the said receptacle being also thermally related to the said heat distributor.

4. An electric steam iron comprising an iron-- ing sole, a heat distributor, an electric heater for said heat distributor localized at the front end thereof, a steam generating receptacle, a separate electric heater for the steam generating receptacle. the said receptacle being thermally related to the saidiheat distributor at the rear end thereof, a steam distributor linking said receptacle with the ironing sole, the said steam distributor forming thermal connecting means'between said heat distributor and said ironing sole.

5.' An'electric steam iron comprising an ironing sole, a localized electric heater for the ironing sole, a-steam generating receptacle, a separate eiectric'heater for the steam generating receptacle, and means thermally connecting ,the ironing sole heater with the steam generating receptacle. v r

6. In an electric steam iron-as claimed in claim 5, a circuit for said ironing sole heater and a local'switch controlledcircuit for said receptacle heater. p

7. An electric steam iron comprising an ironing sole, a localized electric heater connected to the ironing sole, a steam generating receptacle, a separate electric heater for the steam generating receptacle and steam distributing means connecting the receptacle to the ironing sole.

8. An electric steam iron comprising an ironing sole, a heating element, a steam generating receptacle, a'steam distributor connecting said receptaclewithsaidironinglohandathermal network connecting the heating element with 0. An electric steam iron comprising an iron necting the heatingelement with said ironing 11. An electric steam iron comprising an ironing sole, a heating element, a steam distributor arranged between said heating element and said ironing sole, the said heating element being united at spaced points to the steam distributor and the latter being mm at spaced points to the ironing sole. said spaced uniting points delining thermal channels between the heating element and the ironing sole. 1

12. An electric steam iron comprising an ironing sole, a heat distributor, a heating element located at the nose of the heat distributor, a

' steam generating receptacle, a steam distributor connecting said receptacle with said ironing sole,

and a thermal network connecting the heat distributor with said ironing sole.

13. In an electric steam iron, a heat and steam distributing system extending over substantially the ironing area and occupy a short vertical space in the iron comprising the following superposed' elements: a flat ironing sole, a shallow steam distributor next adjacent to the sole and 40 connected thereto. and-a flat heat distributor next adjacent to the steam-distributor and con-- nected thereto, and a heating element connected with the heat 14. In an electric steam iron, a heat and stea distributing system extending over substantially the ironing area and occupying a short vertical space in the iron comprising the following super-i posed elements: a flat ironing sole, a shallow steam distributor located next adiacent' to the sole and connected thereto at selected points spaced over the ironing sole ara, and a flat heat. distributor next adjacent to the steam distrib-j ,utpr and connected thereto at selected points Spaced over the steam distributor. and a heat- 'ing element connected with the heat distributor.

15. In an electric steam iron, a' heat and steam distributing system extending over substantially theironingareaandoccupyingashortvertical space in the iron comprising the following superposed elements: a flatironing sole, a flat casingdeflning a shallow steam distributor located next adjacent to the sole and connected thereto at selected points spaced over the ironing sole area.

u a flat heat distributor located next adjacent. to .the'steam distributor and connected thereto at selected-points spaced over the steam distributor. and' an electric heater localized at the nose of the heat distributor.

7 18. In an electric steam-iron, a heat and steam distributing systemextending over substantially the ironing area and occupying a short vertical space in the iron comprising the following super- Y a heat distributor.

fining a shallow steam distributor, a

, 5 low steam distributor casing located next adiacenttothssoleprovidedatitstopandbottmn walls with spaced plug-projections, and a list heat distributor located next adjacent to the steam distributor provided on its bottom face I with spaced socket-recesses. the plug-projections of the distributor casing being press-fitted into the socket-recesses of the heat distributor and sole, and a heating element connected with the heat distributor. I.

'17. In an electric steam iron, a heat and steam distributing system extending over substantially the ironing area and 'occupying a short vertical 7 space in the iron comprising the following superposed dements: a list ironing sole, a list steam distributor casing next adjacent to the sole, and a flat heat distributor next adjacent to the steam distributor, and plug and recess formations in said elements connecting the elements together physically,'thermally and for steam distribution, 5

and a heating element connected with the heat distributor.

18. An electric iron comprising an ironing sole, an electric heater localized in a section of the heat distributor, and a thermal network connecting the heat distributor to the ironing sole at selected points spaced over the ironing sole area,

19. An electric iron comprising a flat ironin sole, a flat heat distributor extending over substantially the area of the ironing 'sole, an electric heater localized in a section of the heat distributor, and a thermal network connecting the heat distributor to the ironing sole at seiected points spaced over the ironing sole area. a

20. An electric steam iron comprising a flat ironing sole, an electric heater connected thereto. a list steam distributor casing, and means connecting the casing to the sole at selected spaced points over the sole area ior flowing steam from the distributor to said selected points of the sole.

21. The electric steam iron claimed in claim 20. wherein the connecting means consists of press-fitted plug and recess formations in the contiguous walls oi' the casing and sole.

22. In an electric steam iron, in combination with an ironing sole and ii. heating element connected thereto. of a list casing having an area extending over that of the ironing sole and desteam ingress in the top wall of said casing and a plurality of spaced steam egresses in the bottom wall of said casing- 23. In an electric steam the ironing sole, said casing defining a shallow steam distributor, so plug-projections in the bottom wall 01' said casing, a in the top wall of the casing, e. in said plug-projections, and thermal conducting linersg'on the inside of said nlug-proiections. I t a 24. An electric steam iron comprising an ironing sole, a heater connected to the ironing sole, a circuit therefor; a steam generating receptacle.

. a separate electric heater for the steam generating receptacle. a circuit therefor, and s thermostat local to said first heater circuit;

I 25. In an electric steam iron, an ironing sole, an electric heater connected thereto, an enclos- ,ing casingforthepart'softhe iron,asteamgenera; receptacle. within the c sing, and a 1.

' poliahed metal shield over said heating element.

spring-held filler cap tor the receptacle movabiy mounted on said enclosing casing.

26. In an electric iron a heat distributor, an

ironing aole connected thereto, a high temperature electric heating element localized at one region 0! said heat distributor, and a highly 27; An electric steam iron comprising an ironing sole. an electric heater for the ironing sole. a steam generating receptacle, a separate electric heater for the steam generating receptacle. and means thermally connecting the ironing sole heater with the steam generating receptacle.

28.An electric steamironunitcomprlsing withintheunitanironingsolaanelectricheater for the ironing sole. a water holding'and steam Y generating receptacle, a separate electric heater for the water holding and steam generating receptacle, and means thermally connecting the ironing sole heater with the steam generating receptacle capable of keeping the water therein at a high temperature whemthe steam generating heater iishut oil.

29. An electric atearn iron comprising .withintheunit an ironing sole, an electric heater iorthe'ironing sole,awaterholdin gandsteam generating receptacle, a separate electric heater for the water holding and eteamgenerating receptacle, a steam distributor connectingf'said receptacleto-theironing sole, and means thermallyconnectingtheironingsoleheateriith tacle, aseparate electric heater for the water] holding and steam generating receptacle. a circuit therefor, and a thermostat local to said first heater circuit.

31; An electric steam iron unit comprising within the unit an ironing sole, an electric heater connected to the ironing sole. a'circuit thereicl'. 'athermostatswitchiocaltosaidcircuihawater holding generating receptacle, a separate electric heater for the water holding and steam generating receptacle. a circuit therefor,

and a manually controiledswitch local to said u lastmentionedcircuit. 32. Anelectriccteamironcomprisinganirmingsole,an electric heaterconnect'edtotheironing sole, a circuit theretor,'a thermostat switch localtosaidcircuit,awaterhcldingandateam generating receptacle; a separate'electrm heater iorthewater holdingandateamgeneratingre ceptacle, a circuit therefor, and a steam diaand 'superheater'connecting said recep'-. tacle'to theironingsole.

sm-anagram. a