UBUCIKO
UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
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.
Ophakathi
Workshop process
Imiyalelo
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.
Izinto zokwakha zalesi sinyathelo:
Ishidi lensimbi1 as requiredAmathuluzi adingekayo:
Umshini wokucindezela amashidi ensimbi2
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.
Izinto zokwakha zalesi sinyathelo:
Ilensi yezibuko zokuvikela1 ucezu
Umucu ogobile wokuvikela imbobo zomoya1 ucezuAmathuluzi adingekayo:
Udlawu Oluhlanganisiwe3
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.
Izinto zokwakha zalesi sinyathelo:
Umgodla wokubamba inkomishi yeso1 ucezu4
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.
Izinto zokwakha zalesi sinyathelo:
Ibhande lekhanda lezibuko zokuvikela1 ucezuIzinto
5- 1 as requiredIsibambeli
- 1 ucezuIsibambeli
- Isibambeli
- Isibambeli
- Isibambeli
Amathuluzi Adingekayo
2- Isibambeli
- Isibambeli
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