bell hanging
The trade or operation of putting in place in a building the bells and their appurtenances. Originally, this work was confined to such bells as were sounded by wires connected with levers or handles pulled by the operator, and other simple mechanical devices, and the trade of placing or hanging the apparatus was one requiring considerable skill and experience, owing to the necessity of nice and accurate adjustment of the long, strained wires which transmitted the power, changing direction where necessary by means of levers and bell cranks. In modern times, the trade also includes the placing of electric bells, which are, in fact, rapidly taking the place of the old appliances. (Sturgis, 1900)