Each flare was controlled by a push button in the pilot's cockpit.
The push button by which he could call assistance from the office was in the alcove.
That is, the pressure on the push button permits current to flow to the bell.
He sprang to the push button and almost instantly the cage dropped back to the third level again.
The other wire goes through a key, which, like a push button or a switch, serves to open or close the circuit.
It was necessary to have a card permanently posted over the push button saying, "If the bell does not ring, knock."
The wire became red hot when the push button in the handle was pressed.
The circuit is closed by a metal spring on the side of the tube, which acts as a push button.
P is a push button situated upon the wall by the side of the door which leads from the dining-room to the kitchen.
Soon after the cottage had been equipped with electric bells I went to the mill one day and found a push button at the door.