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Rubber Hose: Braided, Spirally Wrapped and Vulcanized in Long Lengths
Mary

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Mary

23. Oktoba 2026FI
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Rubber Hose: Braided, Spirally Wrapped and Vulcanized in Long Lengths

Henry Cobb's wrapped hose (Revere Rubber, US 1,230,867, 1917). A rubber tube is forced through a ring die, braided over while held open by pressure, wrapped by machine with a helical strip of frictioned fabric overlapping half its width, covered in rubber and vulcanized. Wrapping by machine instead of rolling bias-cut fabric by hand lets the hose run 500 ft or more, and Cobb says it stands nearly twice the bursting pressure. The patent gives no sizes, recipes or cure times. Couplings are not part of it: an air hose is this hose with couplings fitted. The picture: the patent's sheet 1.
Juu
1 day

Maagizo

1

Force the inner tube

Force vulcanizable rubber compound through the ring-shaped gap between the two parts of a tube die to make the inner tube (1).

Vifaa kwa hatua hii:

Mchanganyiko wa mpiraMchanganyiko wa mpira1 batch

Zana zinazohitajika:

Kalibu ya kusukuma mrijaKalibu ya kusukuma mrija
2

Braid over the tube

Run the tube through a braiding machine that lays crossing helical strands over it (2), coating the strands with rubber compound as they braid. Keep the tube under air pressure so it does not collapse. Ours: the air from a compressor. The braid may be left out, but it holds the hose to size.

Vifaa kwa hatua hii:

UziUzi1 batch
Mchanganyiko wa mpiraMchanganyiko wa mpira1 batch

Zana zinazohitajika:

Mashine ya kusukaMashine ya kusuka
Kibana hewaKibana hewa
3

Cut the fabric along the warp

Cut frictioned fabric into a long strip lengthwise, along the warp threads; wound helically, both warp and weft then run round the hose as if cut on the bias.

Vifaa kwa hatua hii:

Kitambaa kilichoshindiliwa mpiraKitambaa kilichoshindiliwa mpira1 rolii

Zana zinazohitajika:

Kisu cha kaziKisu cha kazi
4

Wrap the strip half over

Feed the braided tube through the wrapping machine, which winds the strip (3) round it under tension, each turn over half the last: two plies, the whole length without stopping. For four plies wind a second strip (5) over the first, in the same pass or a second.

Zana zinazohitajika:

Mashine ya kufunga bombaMashine ya kufunga bomba
5

Plies from the overlap

Inapakia daftari la Jupyter…
6

Cover and vulcanize

Apply a layer of rubber compound (4) over the last winding for a smooth, protected outside. Vulcanize the hose for its whole length in a mould or otherwise.

Vifaa kwa hatua hii:

Mchanganyiko wa mpiraMchanganyiko wa mpira1 batch

Zana zinazohitajika:

Kalibu ya kuvulkanishaKalibu ya kuvulkanisha

Vifaa

3

Zana Zinazohitajika

6

Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

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