The wheeled support of an artillery gun is called the carriage.
dolly
Tricycles, 3 wheeled bicycles, or 3 wheeled bike.
There is no information to support that there is a gun maker by the name of sentinel.
A two wheeled cart was a chariot or a "currus" in Latin.
3 wheeled motorcycle.
Another word for a two wheeled carriage is a "SURREY"
A four wheeled, closed horse drawn carriage is called a coach.
motorcycle
motorcycle
A Unicycle
UNIMOTOR