Each landing gate on material elevators shall be equipped with a positive latching device and an electrical connect so designed and installed that a circuit, which lights a colored bulb, is closed whenever all gates are closed.
(Each landing gate on material elevators; shall be equipped; with a positive latching device and an electrical connect) (an electrical connect; so designed; ) (all gates; are closed; ) (a circuit; lights; a colored bulb) (a circuit; is; closed whenever all gates are closed)
Each landing gate on material elevators an electrical connect all gates a circuit a circuit
shall be equipped so designed are closed lights is
with a positive latching device and an electrical connect
a colored bulb
closed whenever all gates are closed