कला
सुन्दरता र कल्याण
हस्तकला
संस्कृति र इतिहास
मनोरञ्जन
वातावरण
खाना र पेय
रिभर्स इन्जिनियरिङ
विज्ञान
खेलकुद
प्रविधि
पहिर्न मिल्ने
Thermostatic Electric Iron
The electric flat-iron already published has one state: on. Leave it plugged in and it keeps getting hotter until something scorches - the user is the thermostat. The rung above it puts the Butz idea, a bimetallic strip, inside the iron: the iron holds whatever temperature the dial asks for, and silk and linen each get their own.
**US 2,723,336**, "Thermostatically controlled electric flatiron or the like", Swenson and Finlayson, assigned to General Electric, filed 23. July 1953, granted 8. November 1955.
**You build the thermostat, not the mains appliance**: a bimetallic strip switching a battery-powered lamp, measured on a hotplate - then you measure a real iron's cycling from the outside.
शुरुआती
2 hours
निर्देशनहरू
1
1
A switch from a strip
A switch from a strip
Clamp one end of the bimetallic strip. Set a screw or a stiff wire as the contact so the free end presses it at room temperature. Wire strip and contact in series with the LED, its resistor and the battery holder: the lamp is on while they touch.
यस चरणका सामग्री:
Bimetallic Strip1 टुक्रा
LED - Basic 5mm1 टुक्रा
प्रतिरोधकको सेट1 किट
Dupont जम्पर तार सेट (नर-मादा)1 सेटचाहिने औजार:
AA ब्याट्री होल्डर (४ सेल)
स्प्रिङ क्ल्याम्प2
2
Heat it and watch
Heat it and watch
Tape the thermocouple to the strip. Warm it gently on the hotplate and note the temperature when the lamp goes out; let it cool and note when it lights again. Three runs.
चाहिने औजार:
तताउने प्लेट
पढाइसहितको तापयुग्म
सफा सुरक्षा चस्मा3
3
Move the contact
Move the contact
Turn the contact screw in by half a turn so the strip must bend further, and repeat. That screw is the iron's fabric dial.
चाहिने औजार:
पढाइसहितको तापयुग्म4
4
Measure a real iron
Measure a real iron
Stand a steam iron on its heel on a heatproof surface at a mid setting. With the infrared thermometer on the soleplate and a stopwatch, time how long its indicator lamp stays on and off over several cycles, and note the highest and lowest readings.
चाहिने औजार:
भापे इस्त्री
अवरक्त तापमापक
रोकघडी5
5
Bend, hysteresis, duty cycle
Bend, hysteresis, duty cycle
Jupyter नोटबुक लोड हुँदैछ…
6
6
History & Context
History & Context
**What the patent specifies:** a flatiron whose heating element is switched by a thermostat set from a fabric dial, holding the soleplate at the chosen temperature. **Modern build (derived):** the bimetal switch alone, on safe low voltage, plus outside measurements of a working iron.
The same bimetal switch went into kettles, ovens, toasters and motor overload protectors. Its limits: the strip switches over a few degrees of swing, it ages with cycling, and it senses its own temperature - not the cloth's.
सामग्री
4- 1 टुक्राप्लेसहोल्डर
- LED - Basic 5mm10% कमिसन1 टुक्रा$0.77
- देखि$5.70
- प्लेसहोल्डर
आवश्यक उपकरणहरू
8- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- भापे इस्त्री10% कमिसनप्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
अनुमानित जम्मा
बनाउनेले किनेको कुरा। मूल्य नदेखिएका सामग्री तपाईंले जहाँबाट किन्नुहुन्छ त्यहीँबाट पाइन्छ।
सम्बन्धित ब्लुप्रिन्ट
यी ब्लुप्रिन्टहरूले ज्ञान साझा गर्छन् — प्रविधि, सामग्री वा सिद्धान्त
CC0 सार्वजनिक डोमेन
यो ब्लुप्रिन्ट CC0 अन्तर्गत जारी गरिएको छ। तपाईं अनुमति नसोधी प्रतिलिपि, परिमार्जन, वितरण र प्रयोग गर्न सक्नुहुन्छ।
ब्लुप्रिन्ट मार्फत उत्पादनहरू किनेर सिर्जनाकर्तालाई सहयोग गर्नुहोस् सिर्जनाकर्ता कमिसन विक्रेताले तोकेको, वा यो ब्लुप्रिन्टको नयाँ संस्करण बनाउनुहोस् र आम्दानी बाँड्न आफ्नो ब्लुप्रिन्टमा जडानको रूपमा समावेश गर्नुहोस्।