sluice gate

open sluice gate; (toll) station; boarding gate (airport etc); (fig.) gateway (access point)

turnstile

electric fusebox; switch box

(computing) gateway (Tw)

sluice gate

open sluice gate; (toll) station; boarding gate (airport etc); (fig.) gateway (access point)

turnstile

electric fusebox; switch box

(computing) gateway (Tw)

pneumatic brake; airlock

sluice; water gate; waterlocks; floodgate; lock; dam

handbrake

navigation lock

(of a circuit breaker or switch) to trip; to jump a turnstile