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ẸWÀ ÀTI ÌLERA
IṢẸ́ ỌWỌ́
ÀṢÀ ÀTI ÌTÀN
ÌṢERÉ
ÀYÍKÁ
OÚNJẸ ÀTI OHUN MÍMU
REVERSE ENGINEERING
SÁYẸ́ǸSÌ
ERÉ ÌDÁRAYÁ
ÌMỌ̀-Ẹ̀RỌ
ÀWỌN OHUN WÍWỌ̀
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.
Olùbẹ̀rẹ̀
1 hour
Ìlànà
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.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ìdè orí tí a lè tún ṣe1 ẹyọ
Ìbòjú yíyí1 ẹyọÀwọn irinṣẹ́ tí a nílò:
Ìṣù àwọn ohun ìyí skurú2
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.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Pátákó ààbò tí ó mọ́ kedere1 ẹyọ
Ìlà ìdè etí1 as requiredÀwọn irinṣẹ́ tí a nílò:
Ọ̀bẹ iṣẹ́
Ohun èlò ìlu ihò ìwé
Ẹmú Àkópọ̀3
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.)
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ẹ̀rọ Bọ́tìnì Ìtẹ̀ (Iṣẹ́ Wíwúwo)1 ẹyọ
Ọ̀pá irin orísun1 as requiredÀwọn ohun-èlò
6- Àyè
- 1 ẹyọÀyè
- Àyè
- 1 as requiredÀyè
- Àyè
- 1 as requiredÀyè
Àwọn irinṣẹ́ tó nílò
4- Àyè
- Àyè
Ìtọ́nisọ́nà yìí ń ṣe
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