Gate: The door on the elevator car is often referred to as a gate. In the early days these were expanding collapsible and therefore called gates. Solid units are normally called car doors but sometimes referred to as gates.
What is an elevator gate?
Elevator doors are set of doors that prevent passenger from falling onto the hoistway.
What is an elevator landing door?
The “ELEVATOR CAR DOOR” or “GATE” is attached to the elevator car itself. It often is a folding "accordion" door or "scissor" gate. The “LANDING SILL” is the space between the inside of the hoistway door and the edge of the landing.