US2582024A - Heat setting and temperature indication in flatirons - Google Patents

Heat setting and temperature indication in flatirons Download PDF

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Publication number
US2582024A
US2582024A US163185A US16318550A US2582024A US 2582024 A US2582024 A US 2582024A US 163185 A US163185 A US 163185A US 16318550 A US16318550 A US 16318550A US 2582024 A US2582024 A US 2582024A
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US
United States
Prior art keywords
temperature
iron
heat setting
shell
disc
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.)
Expired - Lifetime
Application number
US163185A
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English (en)
Inventor
Frank E Finlayson
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.)
General Electric Co
Original Assignee
General Electric Co
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
Application filed by General Electric Co filed Critical General Electric Co
Priority to US163185A priority Critical patent/US2582024A/en
Priority to GB1068851A priority patent/GB686645A/en
Priority to FR62714D priority patent/FR62714E/fr
Application granted granted Critical
Publication of US2582024A publication Critical patent/US2582024A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/26—Temperature control or indicating arrangements
    • D06F75/265—Temperature indicating arrangements; Control knobs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S116/00—Signals and indicators
    • Y10S116/41—Color comparison

Definitions

  • Myinvention relates to automatic electric fiatirons; More particularly my invention relates to improvements'in heat setting. and heat conditi'on indicating arrangements for automatic flatirons- It should be understood thatautomatic electric fiatirons provide setting'of the ironfor a desired operating temperature and: automatic maintenance ofthat temperatureby the iron. However, when the iron is cool, that is, at the beginning of a'peri'od of use of the there is an appreciable time interval between the connection of the iron to'th'epower source and the attaim ment or the setting heat by the iron.
  • the present invention is directed toward improvements in the heat setting and heat indicating arrangement for electric flatirons.
  • One object of my invention is to provide heat setting and temperaturei'ndicating mechanisms of a novel "character. These improvements promote theease of manufacture oi'devices of this-type
  • Another object is to increase the visibilityof the indicators for both the heat setting and temperature reading.
  • a still further object is to avoid expensive oonstructi'ons so that heat setting and indicating mechanisms according to myinventicn may be made economically andhave ahigh degree of dependability in use over a long period of time.
  • the coordinated calibration of the indicator and or the heat setting control is made easy. Protection of sensitive parts from accidental damage is.
  • Another object ofthe invention Improved appearance'o'f heat setting and indicating devices in flatirons maybe a further result of my invention.
  • FIG. 1 is a side view largely in cross section showing the interior parts of an electric fiati'ron;
  • Fig. 2 is a plan view onan enlarged scale of the front end of the iron oiv Fig. 1
  • Fig. 3 is an enlarged vertical'secti'on through the essential movable parts of the heatsetting and temperature indication mocha ni'sms of Fig. 1.
  • an iron according to my invention has the usual sole plate I with'a suitable heating element such as the one shown. at 2 which may be embedded therein.
  • the body of the. iron proper is completed by the cover or'shell'iwhich extends over the sole plate and may project rearwardly therefrom in a heel portion 4, the bottom of which may be closed as by a bottom heel cover plate 5.
  • the usual handleifor the iron has a horizontal hand grip portion 6 with a vertically extending post .1. at the front of the iron, and a correspondingpost 8at the back of the iron.
  • Thehandle is shown here as secured to the body of the iron at the front as by the bracket 9, brazed, welded or otherwise suitably-secured to the shell, and by the screw lllpassing through an extension on this bracket and threaded into the bottom of the post I.
  • the rear post of the handle may also be shit: ably secured to the iron in any desiredfashion. I have not shown the customary electrical conmotions to the heating element within the iron although these maybe brought into the back post 8 which may be made hollow for that purpose.
  • the position of the two contacts relative to each other, and therefore the temperature at which the two contacts will separate to break the circuit to the heating element, is governed bythe position of a temperature setting control lever arm IS.
  • the forward tip of this switch controlling arm rides on rotatable cam member l6, which is suitably supported within the chamber under the shell as by the Z-shaped bracket ll. Rotation of the cam I6 about its vertical axis on the supporting bracket I! will change the position of the arm 25 and and assigned to the same assignee as the present 1 application.
  • thermostatic switches and controls of other design could be used according to the present invention.
  • Rotation of the cam l6 and therefore regulation of the setting of the switch II is controlled manually by rotation of a control shaft or mechanism shown here as a vertically extending tubular member l8 suitably secured at its bottom end to the cam l6, and extending through a hole l9 in the shell 3 to the outside of the iron body.
  • the rotational position of this tubular shaft is controlled by the angular position of the horizontally extending lever control arm. which has a handle or finger piece 2
  • Heat setting indications which may take the form of fabric markings, may be placed on the body of the iron opposite the various positions of movement of the handle piece 2
  • the fabric markings for indication of the heat setting might be embossed upon or impressed in the material .of the handle itself, but I prefer to use a separate indicating piece in the form of a wafer 26 having a beveled edge 21' on which the various indications such as 28 are marked. This fabric marking wafer may be slipped into a slot 29 in the front of the top of the handle and cemented in place or held in place by the mechanisms about to be described.
  • the front post of the handle is made hollow to provide a vertically extending passageway 39 between the slot 29 and the base of the post for receiving the upper end of the tubular member l8 and other parts for indicating the heat setting.
  • the tube l8 has secured at its top a circular disc member in the form of a hollow shell 3
  • the temperature indicating mechanism is driven by a coil or spiral of bimetal 34 mounted in a cavity 35 in the sole plate of the iron directly underneath the end of the passageway 39 of the handle.
  • the bimetal is secured at its outer end to a support 36 which in turn is forced or otherwise secured within the cavity 35.
  • the central end of the bimetal spiral is connected as by a slot 31 to the bottom of a rod 38 which passes rotatably through a central hole in the bimetal supporting member 36.
  • This rod carries at its top end a circular temperature indicating disc 39 which is mounted to rotate freely inside of the shell 3
  • the upper end of the rod 38 and the center of the temper ature indicating disc 39 are secured together preferably by a bearing piece 40 having an upper point or tip 4
  • Portions of the temperature indicating disc 39 are visible at all times through the window 33 in the shell and I prefer that the temperature indication be made in the form of different colors which are printed or otherwise applied to the disc 39 on the areas which will be exposed under the window 33. For instance,ithe color yellow might be selected for one area on the disc 39 to indicate that the iron has reached a temperature satisfactory for the heat setting opposite the window.
  • the color red might be used to indicate a temperature of the iron above the setting.
  • the color blue might be used to show that the iron was below the temperature at which it was desired to Op a Fig. 2 shows the position of parts as they would appear if the iron had been operating at the high Linen heat setting and had reached proper temperature, and the heat control setting had just been changed to the lower setting between Wool and Rayon but the iron had not yet cooled.
  • the temperature indicator shows red under the window, informing the operator that the iron is too hot for the new setting.
  • the correct temperature setting indicating area might utilize a color different than yellow, and other colors might also be used in place of the red and bluementioned above.
  • the colored area which is to indicate proper operating temperature of the iron is placed between the other two colors around the circumference of the disc 39 and usually, if not always, should be made of less angular extent around the circumference. Therefore, after the iron heat control has been set at the desired temperature, the color viewed through the window 33 opposite the pointer will indicate to the user whether the iron is above, below, or within the range of the proper ironing temperature.
  • Spring washers such as those at 43 and may be used to restrain the tubular shaft l8 and the rod 38 from unwanted movement, and in troduce a slight amount of friction in the opera tion of these parts so that they will not slide around in an undesirable fashion.
  • Bccause'the-discshe ll extends through the not in the front and top of the handle post of j the iron, 'both'theheat setting: and temperature indicating devicesare visible at the top andfront f of the 'ircn ha-n'dlev These may therefore be seen by the user not only when the iron is' in horizontal or-ironing position but also when the iron is tilted backwardly toward the rest posilimited to the particular details of construction of the exampleillustrated'and I contemplate that various and other modifications'and applications of'thcinvention will occur tothosc skilied'inthe art. Itis,'theref'orc, my intention that the appended claims shall cover such modificationsxa-nd ti'onon thesupporting surface S while 'the'user is waiting forithe-iron' to heat upor cool down to.
  • the entire top of the shell disc may be made of transparent material, instead of using the window opening 33.
  • the operator can watch the progress of the temperature indicating color disc, and thus may be able to judge when the iron is approaching close to the heat setting. This is useful in cases where a precise temperature is not regarded as necessary for a particular article being ironed.
  • an automatic electric flatiron of the type having-an ironing body with a'heating element therein a thermostatic control "ior'maintainin a given temperature for said element, manually operable heat setting means for altering said control for the production of selected degrees of heat in the iro'n,;and a'handle securedtosaid ironing 'body with a "vertically extending post near "the'front of said iron, that improvement ina heat setting and heat indicating arrange- 'ment for the iron comprising a vertically extending passagewayin said post opening at the top and front thereof, a rotatable 'hollowcircular shell mounted for rotation about a central vertical axis at the top of said post, a vertically extending tubular shaft fixed to said shelland extending through said passageway into said ironing body; means connecting the "lower end of said tubular shaft to said heat setting means, a thermally responsive member in said ironing body movable in response to the temperature of said heating element, a vertically extending
  • the pointer may be a spot marking on a continuous circumferential flange projecting from the shell, instead of a radial point as shown, further balancing the mechanical structure.
  • the window 33 may be made preferably as a transparent section of the shell 3
  • a thermostatic heating element control for automatically maintaining a selected temperature of said body by closing and opening the electrical circuit to said heating element, manually operable heating setting means for altering said selected temperature and a handle secured to said body including a front supporting post therefor, that improvement comprisin a passageway in said post extending from said ironing body to the top of said post and having an opening at the front thereof, a rotatable heat setting indicator in the formof a hollow circular shell located at and visible through said opening, a rotatable hollow shaft for said indicator shell extending through said passageway and connected to said heat setting means to amove therewith, a temperature indicator in the form of a circular disc rotatably mounted within said heat setting indicator shell, said indicator shell having a window through which the circular disc is visible, a rotatable rod for said temperature indicator disc mounted coaxially within and free to move independently of said hollow shaft, and means responsive to the temperature of said ironing body connected to said shaft for turning the shaft to
  • an automatic electric flatiron of the type having an ironing body with a heating element therein, a heating element control for maintaining a selected temperature of said body by closing and opening the electrical circuit to said heating element in response to temperature changes of said element, manually operable heat setting means for altering said selected temperature and a handle secured to said body includtoward thetop of said post and having an opening near the top of said postat the front of said handle, a heat setting indicator in the form of a hollow shell rotatably mounted about a vertical axis in'and visible through said openin a hollow driving shaft fixed to said indicator shell and extending vertically throughsaid pas sageway, a lever arm extending from said drivingshaft, adapted for manual rotation of said shaft and simultaneous operation of said heat setting means, a temperature indicator in the form of a disc rotatably mounted within said shell, a viewing window in said shell above said temperature indicating disc, 9, driving rod for said temperature indicator disc rotatably mounted coaxially within said hollow driving shaft and a temperature responsive element in said ironing body

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)
US163185A 1946-06-15 1950-05-20 Heat setting and temperature indication in flatirons Expired - Lifetime US2582024A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US163185A US2582024A (en) 1946-06-15 1950-05-20 Heat setting and temperature indication in flatirons
GB1068851A GB686645A (en) 1950-05-20 1951-05-07 Improvements in and relating to heat setting and temperature indication in flat-irons
FR62714D FR62714E (fr) 1946-06-15 1951-05-18 Perfectionnements aux fers électriques à repasser

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US944024XA 1946-06-15 1946-06-15
US163185A US2582024A (en) 1946-06-15 1950-05-20 Heat setting and temperature indication in flatirons

Publications (1)

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US2582024A true US2582024A (en) 1952-01-08

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US (1) US2582024A (fr)
FR (1) FR62714E (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2681521A (en) * 1951-08-03 1954-06-22 Gen Electric Thermostatically controlled electric flatiron or the like
US2810812A (en) * 1955-06-07 1957-10-22 Gen Electric Thermostat control for flatirons and the like
US3208427A (en) * 1963-05-24 1965-09-28 Westinghouse Electric Corp Electric iron
EP0086759A2 (fr) * 1982-02-17 1983-08-24 ANTONIO BETTINI di Santo Bettini Dispositif de réglage du thermostat et indicateur de température pour fers à repasser électriques et à vapeur
EP0631002A1 (fr) * 1993-06-22 1994-12-28 Moulinex S.A. Fer à repasser à vapeur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2793816A1 (fr) * 1999-05-21 2000-11-24 Moulinex Sa Fer a repasser electrique comportant des moyens de mesure de la temperature reelle de la semelle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2152502A (en) * 1935-12-09 1939-03-28 Alfred C Schmidt Electric iron
US2439825A (en) * 1944-05-13 1948-04-20 Birtman Electric Co Electric iron with synchronous heat indication
US2443448A (en) * 1946-06-15 1948-06-15 Gen Electric Flatiron handle structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2152502A (en) * 1935-12-09 1939-03-28 Alfred C Schmidt Electric iron
US2439825A (en) * 1944-05-13 1948-04-20 Birtman Electric Co Electric iron with synchronous heat indication
US2443448A (en) * 1946-06-15 1948-06-15 Gen Electric Flatiron handle structure

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2681521A (en) * 1951-08-03 1954-06-22 Gen Electric Thermostatically controlled electric flatiron or the like
US2810812A (en) * 1955-06-07 1957-10-22 Gen Electric Thermostat control for flatirons and the like
US3208427A (en) * 1963-05-24 1965-09-28 Westinghouse Electric Corp Electric iron
EP0086759A2 (fr) * 1982-02-17 1983-08-24 ANTONIO BETTINI di Santo Bettini Dispositif de réglage du thermostat et indicateur de température pour fers à repasser électriques et à vapeur
EP0086759A3 (fr) * 1982-02-17 1985-08-28 ANTONIO BETTINI di Santo Bettini Dispositif de réglage du thermostat et indicateur de température pour fers à repasser électriques et à vapeur
EP0631002A1 (fr) * 1993-06-22 1994-12-28 Moulinex S.A. Fer à repasser à vapeur
FR2706916A1 (fr) * 1993-06-22 1994-12-30 Moulinex Sa

Also Published As

Publication number Publication date
FR62714E (fr) 1955-06-20

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