GB2007879A - Smoothing iron with a control switch for the simultaneous operation of at least two heating circuits - Google Patents
Smoothing iron with a control switch for the simultaneous operation of at least two heating circuitsInfo
- Publication number
- GB2007879A GB2007879A GB7835649A GB7835649A GB2007879A GB 2007879 A GB2007879 A GB 2007879A GB 7835649 A GB7835649 A GB 7835649A GB 7835649 A GB7835649 A GB 7835649A GB 2007879 A GB2007879 A GB 2007879A
- Authority
- GB
- United Kingdom
- Prior art keywords
- control switch
- simultaneous operation
- smoothing iron
- heating circuits
- ensure
- 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- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
- G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
- G05D23/1932—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces
- G05D23/1934—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces each space being provided with one sensor acting on one or more control means
-
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Textile Engineering (AREA)
- Remote Sensing (AREA)
- Irons (AREA)
- Power Conversion In General (AREA)
- Control Of Electrical Variables (AREA)
- Control Of Resistance Heating (AREA)
Abstract
A smoothing iron having two separately controlled heating elements (2,3) is provided with respective controls (11,12) associated with means (10) to ensure that the heating elements are switched on and off by respective triacs (4,5) only at zero transitions of the A.C. supply waveform. The respective controls (11,12) are each provided with devices (15,16) which ensure that each element remains in the 'on' state for at least one half period of the A.C. supply waveform and preferably for at least a whole period.The devices (15,16) are flip-flops. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772749766 DE2749766A1 (en) | 1977-11-07 | 1977-11-07 | IRON WITH ONE CONTROL CIRCUIT FOR THE SIMULTANEOUS OPERATION OF AT LEAST TWO CONTROL CIRCUITS |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2007879A true GB2007879A (en) | 1979-05-23 |
Family
ID=6023199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7835649A Withdrawn GB2007879A (en) | 1977-11-07 | 1978-09-05 | Smoothing iron with a control switch for the simultaneous operation of at least two heating circuits |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE2749766A1 (en) |
ES (1) | ES474839A1 (en) |
FR (1) | FR2408006A1 (en) |
GB (1) | GB2007879A (en) |
NL (1) | NL7811069A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2207261A (en) * | 1987-06-16 | 1989-01-25 | South Of Scotland Electricity | Temperature control circuit |
WO1999024886A1 (en) * | 1997-11-07 | 1999-05-20 | Shell Oil Company | Heater control |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996002029A1 (en) * | 1994-07-07 | 1996-01-25 | Honeywell Inc. | Trim heater controller |
-
1977
- 1977-11-07 DE DE19772749766 patent/DE2749766A1/en not_active Withdrawn
-
1978
- 1978-09-05 GB GB7835649A patent/GB2007879A/en not_active Withdrawn
- 1978-11-06 ES ES474839A patent/ES474839A1/en not_active Expired
- 1978-11-06 FR FR7831322A patent/FR2408006A1/en not_active Withdrawn
- 1978-11-07 NL NL7811069A patent/NL7811069A/en not_active Application Discontinuation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2207261A (en) * | 1987-06-16 | 1989-01-25 | South Of Scotland Electricity | Temperature control circuit |
GB2207261B (en) * | 1987-06-16 | 1992-01-08 | South Of Scotland Electricity | Temperature control circuit |
WO1999024886A1 (en) * | 1997-11-07 | 1999-05-20 | Shell Oil Company | Heater control |
Also Published As
Publication number | Publication date |
---|---|
DE2749766A1 (en) | 1979-05-10 |
ES474839A1 (en) | 1979-03-16 |
FR2408006A1 (en) | 1979-06-01 |
NL7811069A (en) | 1979-05-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |