UBUCIKO
UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
Hose-Clamp Saddle, Screw Housing and Worm Screw (North & Burke, 1945)
North and Burke's worm-drive hose clamp of 1945 has three small parts on the band: a U-shaped saddle welded to it, a housing that fits over the saddle as the screw's casing, held by prongs riveted through its flanges, and a screw with one continuous thread whose reduced ends sit in slots in the housing's end walls. Here they are made by hand from mild steel sheet and bar instead of being stamped; method and sizes are ours.
The picture: North and Burke's patent drawing, US 2,386,629.
Osezingeni eliphezulu
1 day
Imiyalelo
1
1
Saddle
Saddle
From 0.8 mm mild steel sheet cut a strip as wide as the band, with two narrow tabs on each long edge for the prongs. Bend the long edges up into a U and curve the base slightly along its length to match the band.
Izinto zokwakha zalesi sinyathelo:
Ishidi Lensimbi Ethambile1 ucezuAmathuluzi adingekayo:
Insimbi Yokudweba Imigqa
Irula
Isikeli sensimbi
Iqoqo Lamafayela
Isibambo Sebhentshi
Isando esinekhanda elimise okwesikhonkwane
Amagilavu Omsebenzi Esikhumba2
2
Screw housing
Screw housing
Cut a blank for the casing that fits over the saddle, with a flange along each side and an end wall at each end. Drill a hole in each flange where a prong will pass, and cut a slot down into each end wall for the screw's reduced ends. Bend it to shape.
Amathuluzi adingekayo:
Insimbi Yokudweba ImigqaIsikeli sensimbi
Ibhola lesandlaIqoqo LamafayelaIsibambo SebhentshiIsando esinekhanda elimise okwesikhonkwaneAmagilavu Omsebenzi Esikhumba3
3
Turn the worm screw
Turn the worm screw
Chuck mild steel bar and turn the screw: a head with a screwdriver slot, a shoulder, the threaded body, and a reduced end at each end that drops into the housing's slots, with shoulders that bear on the end walls.
Izinto zokwakha zalesi sinyathelo:
Ibha yensimbi ethambile1 ucezuAmathuluzi adingekayo:
Umshini Wokuphendula Insimbi
Isibambi somshini wokuphenda esinemilomo emithathu
Ithuluzi lokusika le-lathe
Insimbi yokuhlukanisa emshinini wokuphotha
Isaha Sensimbi
I-Caliper Yedijithali Yamayintshi Ayi-6
Uwoyela wokusika
Izibuko zokuphepha4
4
Cut the thread
Cut the thread
Single-point cut one continuous thread along the body, its pitch matching the spacing of the band's slots, with a flat working face and a rounded back so it fills the slots.
Amathuluzi adingekayo:
Umshini Wokuphendula InsimbiIthuluzi lokusika le-lathe
Isilinganiso sebanga lomsontwanaUwoyela wokusika5
5
Trial fit
Trial fit
Lay the screw in the saddle with its ends in the housing's slots, fit the housing over it and check the prongs pass through the flange holes and the screw turns freely without end play. The clamp blueprint then welds, rivets and assembles them.
Amathuluzi adingekayo:
I-Caliper Yedijithali Yamayintshi Ayi-6Iqoqo LamafayelaIzinto
2- 1 ucezuIsibambeli
- 1 ucezuIsibambeli
Amathuluzi Adingekayo
17- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
Le blueprint yenza
Ama-blueprint ahlobene
Lama-blueprint abelana ngolwazi — amasu, izinto noma izimiso
CC0 Isizinda Somphakathi
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