EP0233392A1 - Bügeleisen - Google Patents

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Publication number
EP0233392A1
EP0233392A1 EP86301100A EP86301100A EP0233392A1 EP 0233392 A1 EP0233392 A1 EP 0233392A1 EP 86301100 A EP86301100 A EP 86301100A EP 86301100 A EP86301100 A EP 86301100A EP 0233392 A1 EP0233392 A1 EP 0233392A1
Authority
EP
European Patent Office
Prior art keywords
fuel
iron
catalyst
base plate
combustion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP86301100A
Other languages
English (en)
French (fr)
Inventor
Demetrakis Constantinedes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to GB08506736A priority Critical patent/GB2163183B/en
Application filed by Individual filed Critical Individual
Priority to EP86301100A priority patent/EP0233392A1/de
Publication of EP0233392A1 publication Critical patent/EP0233392A1/de
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00—Hand irons
    • D06F75/02—Externally-heated hand irons; Hand irons internally heated by means other than electricity, e.g. by solid fuel, by steam

Definitions

  • This invention relates to a smoothing iron.
  • Smoothing irons are a well used household item.
  • the old fashioned type of iron is the flat iron which is made of solid metal and is intended to be heated indirectly, for example on a gas stove.
  • This type of iron has obvious disadvantages and has now largely been superceded by the electrically heated iron which requires direct connection to a mains electricity supply.
  • Such irons generally comprise a heating element situated in a metal base and are provided with a control for varying the heat.
  • the need for direct connection to an electricity supply is a disadvantage of this type of iron and it would be desirable to provide an iron which is capable of operating independently of an electricity supply.
  • an iron without an electric cable attached would be more convenient to use.
  • the present invention provides an iron comprising a metal base plate which base plate is heated by the catalytic combustion of a fuel.
  • Catalytic heating has the advantage that the iron can be used in environments where there is no mains electricity supply. This form of heating is capable of bringing the base plate to the desired temperature in an adequate time and it allows an iron to be made which is quicker in responding to changes in the temperature control.
  • the iron according to the invention generally comprises a metal base plate, a catalyst for the combustion of a gaseous hydrocarbon fuel, fuel reservoir, means for supplying fuel from the reservoir to the catalyst and a valve for regulating supply of fuel to the catalyst, the base plate being capable of being heated by combustion of the fuel on the catalyst.
  • the combustion of the gaseous hydrocarbon fuel generally takes place in a substantially closed chamber.
  • a mixture of fuel and air (generally in stoichiometric proportions) is fed to the chamber and is distributed over the catalyst.
  • Ignition means are provided to initiate the reaction of the fuel with the oxygen in the air on the catalyst.
  • the chamber is substantially closed, sufficient openings are provided to allow combustion products to escape.
  • the iron also comprises a reservoir for fuel which is usually stored therein in liquid form.
  • a valve is provided for regulating the supply of fuel and means are provided for introducing the necessary amount of air into the fuel and for supplying the fuel/air mixture to the catalyst.
  • the valve will generally be thermostatically controlled by a thermostat located in the catalyst so that the desired temperature can be maintained.
  • Means will also be generally provided for switching off the fuel supply completely when the iron is not in use.
  • the fuel is preferably a hydrocarbon which is gaseous under normal condition but which can readily be liquified under pressure.
  • the most preferred fuel is isobutane since supplies of this fuel in liquid form are already available domestically for use in cigarette lighters.
  • Any catalyst for the reaction of the fuel with oxygen can be used, for example a platinum group metal, preferably platinum itself.
  • the catalyst will generally be applied to a support such as mineral wool, for example silica wool.
  • the ignition means for initiating the reaction on the catalyst between the fuel and the oxygen in the air is preferably a piezo electric device generating a spark when a starter control is actuated by the user.
  • a metallic wire e.g. platinum wire
  • the metal base plate of the iron may be of a heavy construct­ion which is designed to retain heat as in most electrically heated irons.
  • the metal base plate can be of a much lighter construction, for example of aluminium, since catalytic heating is adequate to maintain the desired temperature of the base plate in use and consequently there is no need for the plate to retain heat.
  • the iron shown in the drawings comprises a cover moulding 1, a front moulding 2 and a base moulding 3.
  • the cover and front mouldings may be made of a thermo­plastic plastics material such as nylon and the base moulding may be made of an insulating material such as bakelite.
  • the base moulding 3 is fixed to a steel cover plate 4 by means of a screw 5 ( Figure 2) and the cover plate is itself attached to a die cast aluminium base plate 6.
  • the base plate is provided with ribs 7 surrounding and in heat exchange relationship with the catalytic heating means.
  • the base plate is relatively light weight in construction and can be kept supplied with heat by the catalytic heating means at the same rate as heat is withdrawn when the iron is in use.
  • the catalytic heating means comprises a stainless steel gauze 8 containing catalytic wool 9.
  • a stoichiometric mixture of fuel e.g. isobutane
  • air is supplied via a fuel supply pipe 10 to a gas distributor 11.
  • the gas distributor ensures an even supply of gas/air mixture and thus an even reaction on the surface of the catalyst.
  • a combustion reaction takes place on the surface of the catalyst in a substantially enclosed environment although small vents 16 ( Figure 3) are provided to allow for escape of exhaust gases. These vent the area where combustion takes place to the main body of the iron.
  • the design of the area where combustion takes place should provide a slight pressure drop across the catalyst to assist uniform distribution of the fuel/air mixture and assist the combustion reaction.
  • the fuel supply pipe 10 which may be of silicon or brass, runs from a fuel tank 12 to the gas distributor and the gas supply from the tank to the pipe is controlled by a valve 13.
  • the fuel is present in the tank in liquid form and supply to the valve is assisted by a wick 14 made of compressed fibres.
  • the wick is crimped into an aluminium tube 24 having a small aperture which produces a pressure drop such that the fuel is converted from the liquid phase in the fuel tank to the gaseous phase in the fuel supply pipe.
  • the fuel passes through a venturi throat 15 which is provided with small holes to allow air to be drawn in, the size of the holes being such that a stoichiometric mixture of gas and air is obtained in the tube.
  • the valve 13 is controlled by a thermostat in the form of a bi-metallic strip 17 which runs through the catalyst.
  • the bi-metallic strip is linked to the valve by a linkage 18 and closes the valve when the desired temperature in the catalyst has been achieved.
  • the temperature at which the thermostat closes the valve can be adjusted by means of a temperature controller in the form of a ring 19 which meshes with and activates a toothed wheel 25.
  • the toothed wheel in turn rotates a linkage 20 operating a screw 21 which alters the point at which the thermostat closes the valve.
  • a sliding on-off switch 26 is also provided which, in the off position, prevents the thermostat from opening the valve 13.
  • Combustion of the gas/air mixture on the catalyst is initiated by a piezo electric starter 27 activated by a starter button 28 which generates a spark in the vicinity of the catalyst.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Gas Burners (AREA)
EP86301100A 1984-03-15 1986-02-18 Bügeleisen Withdrawn EP0233392A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB08506736A GB2163183B (en) 1984-03-15 1985-03-15 Smoothing iron
EP86301100A EP0233392A1 (de) 1986-02-18 1986-02-18 Bügeleisen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86301100A EP0233392A1 (de) 1986-02-18 1986-02-18 Bügeleisen

Publications (1)

Publication Number Publication Date
EP0233392A1 true EP0233392A1 (de) 1987-08-26

Family

ID=8195891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86301100A Withdrawn EP0233392A1 (de) 1984-03-15 1986-02-18 Bügeleisen

Country Status (1)

Country Link
EP (1) EP0233392A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1055768A2 (de) * 1999-05-26 2000-11-29 BSH Bosch und Siemens Hausgeräte GmbH Bügeleisen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH85975A (fr) * 1919-04-04 1920-07-16 Lyonnaise Des Rechauds Catalyt Appareil de chauffage par catalyse.
GB470299A (en) * 1936-06-12 1937-08-12 James Keith & Blackman Company Improvements in or relating to laundry irons
US2997869A (en) * 1954-07-27 1961-08-29 Weiss Gerhart Catalytic heating device
GB2077771A (en) * 1980-03-31 1981-12-23 Bowyer Mary A gas iron
GB2128641A (en) * 1982-10-21 1984-05-02 Howard Osmond Freckleton Gas operated smoothing iron
GB2163183A (en) * 1984-03-15 1986-02-19 Demetrakis Constantinedes Smoothing iron

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH85975A (fr) * 1919-04-04 1920-07-16 Lyonnaise Des Rechauds Catalyt Appareil de chauffage par catalyse.
GB470299A (en) * 1936-06-12 1937-08-12 James Keith & Blackman Company Improvements in or relating to laundry irons
US2997869A (en) * 1954-07-27 1961-08-29 Weiss Gerhart Catalytic heating device
GB2077771A (en) * 1980-03-31 1981-12-23 Bowyer Mary A gas iron
GB2128641A (en) * 1982-10-21 1984-05-02 Howard Osmond Freckleton Gas operated smoothing iron
GB2163183A (en) * 1984-03-15 1986-02-19 Demetrakis Constantinedes Smoothing iron

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1055768A2 (de) * 1999-05-26 2000-11-29 BSH Bosch und Siemens Hausgeräte GmbH Bügeleisen
DE19923992A1 (de) * 1999-05-26 2000-11-30 Bsh Bosch Siemens Hausgeraete Bügeleisen
EP1055768A3 (de) * 1999-05-26 2002-03-20 BSH Bosch und Siemens Hausgeräte GmbH Bügeleisen

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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