“ The object of a motion is to invoke the assistance of the court in matters that are of a pressing character, and require to be speedily dealt with. A motion differs from a petition in that it is made viva voce in open court and is founded on a written statement. Motions are either motions of course or special motions. A motion of course is made ex parte without notice, and is not mentioned in court, the party being entitled as of right. ”