What is a bell pull and crank and how do I go about fitting one?
A. The bell crank is a type of decorative lever which is operated by a bell pull. When the bell pull is pulled down, the lever in the crank moves. There are two types of bell crank – one is electrical, where the lever operates an electrical bell push which subsequently rings an electrical bell. The other is a mechanical type where the mechanical lever in the bell crank is designed to pull a cord attached to a mechanical bell on a coil spring through a system of pulleys. The bell pull and bell crank are attached to each other by a small length of chain in both cases.