The name John in its Greek form á¼°ÏÎ¬Î½Î½Î·Ï (IÅannÄs) features prominently in the New Testament, being borne by John the Baptist, John the Apostle, and several others; the Gospel of John, three epistles, and Revelation are each attributed to a John . As a result, the name became immensely popular in Christian societies.n Welsh, the name John is rendered as Ieuan (pronounced as Yay-an or Yey-an), and as Ifan (pronounced IV-an), Ianto (pronounced as Yan-to) or Ioan (pronounced as Yo-an) or Sion (siÃ´n pronounced As-sh). On ifan eventually became rendered Into english As. evan
This is ironic, because the spot-type disc brake is an American invention. In 1898, Elmer Ambrose Sperry of Cleveland designed an electric car having front-wheel disc brakes. He made a large disc integral with the hub on each wheel.
When the engineer applied these brakes, the pipe filled with air and squeezed the brakes. In 1869, an engineer named George Westinghouse realized the importance of safety in the relatively new railroad industry and invented the first triple-valve air-brake system for railcar use. Westinghouseâs system worked the opposite way of a direct air-brake system.