You use this lever to lower the sickle, like this and then lift it over stumps and such.
The cage is then lifted by the engine clear of the keeps, which are opened by a lever worked by hand, and the empty tubs start on the return trip. When the cage has several decks, it is necessary to repeat this operation for each, unless there is a special provision made for loading and discharging the tubs at different levels.
Her hand fell from the lever that opened the heavy iron door.
He dropped the portcullis and shoved the lever to turn the iron gate.