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An inner tube is an inflatable torus that forms the interior of some pneumatic tires. [1] The tube is inflated through a valve stem and fits inside the tire casing. The inflated inner tube provides structural support and suspension, while the outer tire offers grip and protects the more fragile tube.
John Boyd Dunlop (5 February 1840 – 23 October 1921) was a Scottish inventor and veterinary surgeon who spent most of his career in Ireland. Familiar with making rubber devices, he invented the first practical pneumatic tyres for his child's tricycle and developed them for use in cycle racing.
The inner tube is covered with white talc powder to prevent it from sticking to itself. Tubular tire rolled from rim to show glue between them. A tubular tyre, referred to as a tub in Britain, [1] a sew-up in the US, a single in Australia [citation needed], or just a tubular is a bicycle tyre that is stitched closed around the inner tube to ...
Dunlop Tyres is a brand of tyres which is managed by different companies around the world. It was founded by pneumatic tyre pioneer John Boyd Dunlop in Belfast, Ireland, in 1888. [5] The brand is operated by Goodyear [1] in North America (passenger car & light truck), Europe, Australia and New Zealand. [6]
Dunlop Ltd. (formerly Dunlop Rubber) [1] was a British multinational company involved in the manufacture of various natural rubber goods. Its business was founded in 1889 by Harvey du Cros and he involved John Boyd Dunlop who had re-invented and developed the first pneumatic tyre: he invented the first practical pneumatic tyres for his child's tricycle.
With over 1 billion tires manufactured worldwide annually, the tire industry is a major consumer of natural rubber. [1] Tire factories start with bulk raw materials such as synthetic rubber (60% -70% of total rubber in the tire industry [2] [3]), carbon black, and chemicals and produce numerous specialized components that are assembled and cured.
Sheet of synthetic rubber coming off the rolling mill at the plant of Goodrich (1941) World War II poster about synthetic rubber tires. Production of synthetic rubber in the United States expanded greatly during World War II since the Axis powers controlled nearly all the world's limited supplies of natural rubber by mid-1942, following the Japanese conquest of most of Asia, particularly in ...
A tubeless tire (also spelled as tubeless tyre in Commonwealth English) is a pneumatic tire that does not require a separate inner tube.. Unlike pneumatic tires which use a separate inner tube, tubeless tires have continuous ribs molded integrally into the bead of the tire that are forced by air pressure into a flange on the metal rim of the wheel, sealing the tire to the rim.