UBUCIKO
UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
Face Shield with a Replaceable Window: Flood, 1946
A face shield is a transparent window hung in front of the face from a headband. Shields get pitted and worn and must be replaced, and if the fastenings are fixed to the shield they are thrown away with it. Oscar S. Flood of Chicago patented a remedy in 1946, US 2,406,598: punch a row of holes along the shield's top edge and fasten it to the visor with snap fasteners, or with a spring-steel strip whose tongues pass through the visor. A worn shield is unsnapped and a new one put in, and all the hardware stays on the visor.
Oqalayo
1 hour
Imiyalelo
1
1
Headband and visor
Headband and visor
Pivot the visor to the sides of an adjustable headband so it can be swung up or down.
Izinto zokwakha zalesi sinyathelo:
Ibhande lekhanda elilungisekayo1 ucezu
I-visor ejikelezayo1 ucezuAmathuluzi adingekayo:
Isethi yezikulufudrayiva2
2
Shield
Shield
Cut the transparent shield, punch a row of holes along its top edge spaced to match the fasteners on the visor, and bind the bottom and side edges with metal or fabric.
Izinto zokwakha zalesi sinyathelo:
Ishidi lesivikelo elicwebile1 ucezu
Umucu wokubopha imiphetho1 as requiredAmathuluzi adingekayo:
Ummese wemisebenzi
Isibhobo sephepha
Udlawu Oluhlanganisiwe3
3
Fasten
Fasten
Fix the female parts of the snap fasteners to the visor. Push each male part through a holding strip inside the visor and through a hole in the shield, and snap it home. (Alternatively, punch inward projections in the visor and lock the shield with a spring-steel strip whose tapered tongues pass through the visor.)
Izinto zokwakha zalesi sinyathelo:
Isethi Yezinkinobho Ezicindezelwayo (Umsebenzi Onzima)1 ucezu
Umucu wensimbi yensipho1 as requiredIzinto
6- Isibambeli
- 1 ucezuIsibambeli
- 1 ucezuIsibambeli
- 1 as requiredIsibambeli
- Isibambeli
- 1 as requiredIsibambeli
Amathuluzi Adingekayo
4- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
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