moving mechanical connector

HINGE
List of words for the clue moving mechanical connector from the crossword:
LINE ARM CAM PUMP NUT COUPLING TRAJECTORY ROLLER PISTON GEAR ATA STAIRWAY STAIRCASE TAPE SEGUE METRO LIFT EAT ROTE
WordClue
BRIDGEbanks connector
GASKETmechanical seal
SWIVELrotating connector
LEVERAGEmechanical advantage
ESCALATORmoving staircase
TRAJECTORYpath of a moving object
TRANSPLANTact of uprooting and moving
CINEMAmovie theatre, a movie house
ESCALATORmoving staircase