IṢẸ́ ỌNÀ
ẸWÀ ÀTI ÌLERA
IṢẸ́ ỌWỌ́
ÀṢÀ ÀTI ÌTÀN
ÌṢERÉ
ÀYÍKÁ
OÚNJẸ ÀTI OHUN MÍMU
REVERSE ENGINEERING
SÁYẸ́ǸSÌ
ERÉ ÌDÁRAYÁ
ÌMỌ̀-Ẹ̀RỌ
ÀWỌN OHUN WÍWỌ̀

Eyecup Goggles: Shindel, 1919
Harry F. Shindel of Reading, Pennsylvania, assigned to T. A. Willson & Co., patented this goggle eye cup in 1919, US 1,296,707. Each cup is folded from one punched blank of sheet material: a beaded outer edge rests on the face round the eye and a recessed inner edge holds the lens. The ends of the folded blank turn outwards and are held together by a sliding channel-section sheath, which also carries the head-strap connection. Ventilating holes in the cup wall let air in, while a folded, crosswise-corrugated guard strip inside keeps out dirt and side light.
Àárín
Workshop process
Ìlànà
1
1
Punch the blank
Punch the blank
Punch the eye-cup blank from sheet material with a beaded outer edge, a shorter inner edge that forms the lens recess, and the ventilating holes.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Pátákó irin1 as requiredÀwọn irinṣẹ́ tí a nílò:
Ẹ̀rọ ìtẹ̀ àwo irin2
2
Fold and fit lens and guard
Fold and fit lens and guard
Fold the blank into a cup with its ends turned outwards. Set the lens in the recess and the corrugated guard strip inside the wall over the holes.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Lẹ́ńsì gíláàsì ààbò1 ẹyọ
Ìlà ààbò atẹ́gùn oníṣùpọ̀1 ẹyọÀwọn irinṣẹ́ tí a nílò:
Ẹmú Àkópọ̀3
3
Clamp
Clamp
Slide the clamping sheath onto the turned-out ends from its outer end until its stop meets them; its tapered flanges wedge the ends together and lock lens and guard in place.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Àkọ̀ ìdìmú ife ojú1 ẹyọ4
4
Pair and strap
Pair and strap
Two such cups, with the head strap fastened to the head-band connections on their sheaths, make the goggles.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ìdè orí gíláàsì ààbò1 ẹyọÀwọn ohun-èlò
5- 1 as requiredÀyè
- 1 ẹyọÀyè
- Àyè
- 1 ẹyọÀyè
- 1 ẹyọÀyè
Àwọn irinṣẹ́ tó nílò
2- Àyè
Ìtọ́nisọ́nà yìí ń ṣe
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