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Coil Spring: Small Springs Wound Through a Nut (Boy Mechanic, 1915)
Popular Mechanics Co. · Public domain (published 1915)
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Coil Spring: Small Springs Wound Through a Nut (Boy Mechanic, 1915)

Small, even coil springs wound by hand: spring wire is turned round a rod that runs through a nut held in a vise, and the nut's thread lays every coil at the same pitch. Variable: the nut's thread pitch gives open or closed coils. Source: The Boy Mechanic, Book 2 (1915), p. 197. Picture: the book's sketch.
Oqalayo
Unknown

Imiyalelo

1

Prepare the nut and rod

Take a nut whose thread will take the spring wire, and file a small notch, as deep as the thread, where the thread starts. Take a smooth rod that passes snugly through the nut. Shape one end to fit a brace (or a drill chuck) and drill a hole across the other end for the wire.

Amathuluzi adingekayo:

Inathi Yezinhlangothi EziyisithuphaInathi Yezinhlangothi Eziyisithupha
Ubhamu Oluyindilinga Lwensimbi EthambileUbhamu Oluyindilinga Lwensimbi Ethambile
Insimbi yokuhlikihla izinsimbiInsimbi yokuhlikihla izinsimbi
Ibhola lesandlaIbhola lesandla
2

Wind the spring

Bend the end of the wire at right angles and push it into the hole. Grip the nut in a vise, put the rod through it, and turn the rod with the brace, guiding the wire into the notch at the start of the thread. The wire follows the thread and comes out as an even spring. Cut it to length.

Izinto zokwakha zalesi sinyathelo:

Ucingo lwensimbi ye-springUcingo lwensimbi ye-spring1 ucezu

Amathuluzi adingekayo:

Isibambo SebhentshiIsibambo Sebhentshi
I-brace nomumuI-brace nomumu
Isikeli sensimbiIsikeli sensimbi

Izinto

1

Amathuluzi Adingekayo

7

Izinto Zokwakha Ze-Blueprint Exhunyiwe

Caliper: Spring-Wire Calipers with a Sliding Loop (Boy Mechanic, 1919)
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Caliper: Spring-Wire Calipers with a Sliding Loop (Boy Mechanic, 1919)

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Amathuluzi Ensimbi

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Coil Spring

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