Punctured Auto Tube Seals Itself (Jul, 1934)

Punctured Auto Tube Seals Itself

A NEW tire tube contains specially compounded plastic rubber which flows into a puncture, quickly closing it and preventing loss of air.

Unlike previous devices of this nature, the new tube gives unusual comfort in use and is light in weight. It can be used on the smallest car without jolting the passengers.

In a recent test an awl was driven repeatedly into one of the tubes; but the plastic rubber effectually sealed each of the holes with virtually no loss of air.

5 comments
  1. Jari says: October 18, 20096:12 pm

    Pinhead apprwes!

  2. Jari says: October 18, 20096:13 pm

    And I can’t type correctly, dang….

  3. StanFlouride says: October 20, 20091:11 am

    This technology, when applied to self-sealing fuel tanks, would give Allied aircraft a distinct advantage a few years later in WW2.

  4. ThunderCat says: October 21, 20092:15 pm

    I’ve seen these before. There was even a demo at the 1939 NYWF where patrons could pierce an inflated tire, but it always stayed inflated.

    Why isn’t this technology used anymore? When I get a flat I am SOL until I can get it repaired.

  5. Toronto says: October 21, 20093:35 pm

    There’s a product called “Slime” (and some competitors)for bicycle tires. It’s basically a fibre-filled latex, as I understand it. It has a few disadvantages, such as if a hole is large enough that it would auto-seal, it also won’t take a patch easily due to the Slime itself, and you have to be careful when pumping the tire to not let it flow into the pump too.

    People who live in places with Goats-head thorns swear by it.

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