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Heat Gun for Paint Removal: Ferris, 1963
Edwin W. Ferris of Greenwich, Connecticut, patented this electric paint remover in 1963, US 3,094,606: a heat gun that softens old paint without a flame. A fan in a housing with a handle blows air through a barrel. Inside is a removable heating unit, a ceramic core wound with resistance wire, with a second coil on a plate across it. The barrel's inner wall is a metal jacket: cooling air flows outside it while the air heated by the coils leaves the mouth at 500–1300 °F (260–700 °C), so the outside stays cool enough to hold. For household current Ferris proposed 110 V and a 1300 W element. A ring with a lever at the barrel's root sets how much air is heated.
Juu
Workshop process
Maagizo
1
1
Housing and fan
Housing and fan
Build the gun-like housing with a handle and a fan housing; fit a drum-type fan driven by a small motor.
Vifaa kwa hatua hii:
Kasha la bunduki ya hewa moto lenye konokono ya feni1 kipande
Feni ya ngoma na mota ndogo1 kipandeZana zinazohitajika:
Seti ya bisibisi2
2
Heating unit
Heating unit
Wind resistance wire round a cylindrical ceramic core pierced with holes, ending in a ceramic disc with air holes and bayonet connectors so the unit can be taken out and replaced. Fit a ceramic plate with a second coil across the inside of the core; connect both coils in parallel.
Vifaa kwa hatua hii:
Kiini cha hita cha kauri chenye koili za ukinzani1 kipandeZana zinazohitajika:
Koleo la Matumizi Mengi3
3
Barrel
Barrel
Mount the heating unit in the barrel, whose inner wall forms a jacket: cooling air passes outside it from the fan housing to the atmosphere, while heated air passes through the core to the mouth.
Vifaa kwa hatua hii:
Bomba la metali lenye koti1 kipandeZana zinazohitajika:
Seti ya bisibisi4
4
Air control
Air control
Fit the control ring with its lever between the core's disc and the ceramic base; turning it opens or closes rows of holes and sets how much of the air passes the heating coils.
Vifaa kwa hatua hii:
Pete ya kudhibiti mtiririko wa hewa1 kipandeZana zinazohitajika:
Seti ya bisibisiVifaa
5- Kishikilia Nafasi
- 1 kipandeKishikilia Nafasi
- Kishikilia Nafasi
- 1 kipandeKishikilia Nafasi
- 1 kipandeKishikilia Nafasi
Zana Zinazohitajika
2- Kishikilia Nafasi
- Kishikilia Nafasi
Mchoro huu unatengeneza
Blueprint zinazohusiana
Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni
CC0 Umma Wote
Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.
Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.