The Collaborative International Dictionary of English v.0.48:

Transporter \Trans*port"er\, n.
   One who transports.
   [1913 Webster]

WordNet (r) 3.0 (2006):

transporter
    n 1: a long truck for carrying motor vehicles [syn:
         transporter, car transporter]
    2: a crane for moving material with dispatch as in loading and
       unloading ships
    3: a moving belt that transports objects (as in a factory) [syn:
       conveyer belt, conveyor belt, conveyer, conveyor,
       transporter]