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Tyre Technology


									                             History of tyres
How tyres got their name

Thankfully tyres have come a long way since a craftsman, know as a
wheelwright, would forge bands of steel to the wooden wheels of wagons and
carts! This steel band literally ‘tied’ the spokes of the wheel together and so was
called a tyre - and the name just stuck.

The very first tyres were bands of iron placed on the wooden wheels of carts
and wagons. Luckily, with the discovery of rubber things changed. It was in the
mid 1800’s that the first tyres made using rubber appeared. They were simple
tyres; the rubber carried the load entirely.

                           It was in 1845 that the pneumatic or air-filled tyre -
                           which works by air within the tyre absorbing the
                           shocks of the road – was invented and patented by
                           RW Thomson. His design used a number of thin
                           inflated tubes inside a leather cover (see illustrated).
                           This meant that it would take more than one puncture
                           before the tyre deflated. However, despite this new
breakthrough in tyres, the old solid rubber variety was still favoured by the
public, leaving the pneumatic tyre out in the wilderness.

It wasn’t until 1888 that John Boyd Dunlop, unbeknownst to him, reinvented
the pneumatic tyre whilst trying to improve his son’s bike. Dunlop’s tyre, like
Thomson’s, didn’t seem to sell at first - until a bike race in Belfast was won by
a rider using his tyres. With that victory, people began to take notice of the
pneumatic tyre.

In 1895 the pneumatic tyre was first used on
automobiles, by Andre and Edouard Michelin.
It was also around this time that legislation was
put into effect that discouraged the use of solid
rubber tyres. All over the world companies
sprang up to meet the new demand for the new
tyres. The age of the pneumatic tyre has begun!

Tyres remained fundamentally unchanged
throughout the 20’s and 30’s until Michelin
introduced steel-belted radial tyres in 1948. This new type of pneumatic tyre
meant that they would have a longer life thanks to ply cords that radiate from a
90 degree angle from the wheel rim. It also meant that the tyre had less rolling
resistance – increasing the mileage of a vehicle. One drawback was that these
tyres required a different suspension system on the vehicle.

This new radial tyre was very successful outside of the US, with companies in
Italy, France, Japan and Germany producing them in large numbers. In the US
however, a battle commenced. American car manufacturers were afraid that the
cost to redesign their cars in order to use these radial tyres was too much and so
stuck to the older bias ply tyres.

It wasn’t until the 70’s – when there was a fuel crisis – that the American
public, because of the rising cost of petrol, demanded more economical cars.
This led to the introduction of cars that could easily fit the high mileage radial
tyres. By 1983 all new American cars came fitted with radial tyres.


      1844 – Charles Goodyear invents and patents the rubber vulcanization
      1846 – Robert William Thomson invents and patents the pneumatic tire
      1880s – John Boyd Dunlop begins taping pneumatic tires to bicycle
      1882 - Thomas B. Jeffery patents an early clincher tire.
      1888 – First commercial pneumatic bicycle tire produced by Dunlop
      1889 – Dunlop patents the pneumatic tire in the UK
      1889 – Adolphe Clément sees a Dunlop pneumatic tire in London and
       acquires the French manufacturing rights for 50,000 francs
      1890 – Dunlop, and William Harvey Du Cros begin production of
       pneumatic tires in Ireland; thickened beads, wire retainers, and shaped
       rims make taping tires to rims unnecessary.
      1890 – Bartlett Clincher rim introduced
      1891 – Dunlop's patent invalidated in favor of Thomson’s
      1891 – The Michelin brothers patent a removable pneumatic tire, used by
       Charles Terront to win the world's first long distance cycle race, Paris–
      1892 – Beaded edge tires introduced in the U.S.
      1893 – Cotton reinforcing cords have appeared
      1894 – E.J. Pennington invents the first balloon tire
      1895 – Michelin introduces pneumatic automobile tires; André Michelin
       uses corded tires in Paris-Bordeaux-Paris rally: by 1897, they are
       standard racing tires
   1898 – Schrader valve stem patented
   1900 – Cord tires introduced by Palmer (England) and BFGoodrich
   1903 – Paul W. Litchfield of the Goodyear Tire Company granted patent
    for the first tubeless tire, which was introduced in 1954 by Goodyear on
    Packards) (Litchfield would go on to become Goodyear's president and
    board chairman.)
   1904 – Goodyear and Firestone start producing cord-reinforced tires
   1904 – Mountable rims introduced, allowing drivers to fix their own flats
   1906 – First pneumatic aircraft tire
   1908 – Harvey Firestone invents and patents "no skid" tread for improved
   1908 – Frank Seiberling invents grooved tires with improved road
   1900s – Tire companies experiment with adding leather, wood, and steel
    to improve durability
   1910 – Silvertown Rubber Company (London) adds carbon black to
    white rubber, increasing durability: now universal
   1919 – Goodyear and Dunlop announce pneumatic truck tires
   1923 – First balloon tire, named for larger cross section and lower
    pressure, introduced by Firestone: debut on the first Chrysler, the 70, in
   1929 – Solid automobile tires cease to be used
   1937 – BFGoodrich introduces the first commercial synthetic rubber tire
   1938 – Goodyear introduces the rayon cord tire
   1946 – Michelin introduces the radial tire
   1947 – Goodyear introduces first nylon belted tires
   1947 – BFGoodrich announces the tubeless tire
   1963 – Use of polyester cord introduced by Goodyear
   1965 – Armstrong Rubber introduces the bias belted fiberglass tire
   1967 – Poly/glass tires introduced by Firestone and Goodyear
   1968 – United States Department of Transportation (DOT) numbers
    required on new tires in U.S.
   1974 – Pirelli introduces the wide (low aspect ratio) radial tire
   1975 – Michelin very first American-built radial passenger tire
   1977 – Goodyear introduces the first all-season radial tire, the Tiempo
   1992 – Michelin introduces the first durable silica-filled tire, also known
    as "green tires".
   1998 – Michelin develops tire that’s vertically anchored and unseatable,
    allowing it to run flat after a loss of pressure.

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