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Rooms were fitted with bell pulls or levers which a household member could pull. A system of wires connected the pull to a bell in a service area, in stairwells or outside servants' rooms. [1] The bells were fixed to a board and each bell was individually labelled so servants could see which room requested service. [1] Bells hung from coiled ...
Service bell may refer to: Call bell , a countertop bell used to summon an attendant to a service desk Servant bell , a bell used to call the attention of an in-house servant
Doorbell mechanism from 1884 in Andrássy Avenue, Budapest Antique mechanically operated shop doorbell on a torsion spring. William Murdoch, a Scottish inventor, installed a number of his own innovations in his house, built in Birmingham in 1817; one of these was a loud doorbell, that worked using a piped system of compressed air. [1]
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A bell pull is a woven textile, pull cord, handle, knob, or other object that connects with a bell or bell wire, and which rings a service bell when pulled. Bell pulls may be used to summon workers in homes of people who employ butlers , housemaids , nannies or other domestic workers , [ 1 ] [ 2 ] and often have a tassel at the bottom. [ 3 ]
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When current was passed through the wire, the force of the magnet made the wire swing sideways, out of the mercury, which broke the current to the magnet, so the wire fell back. The modern electric bell mechanism had its origin in vibrating "contact breaker" or interrupter mechanisms devised to break the primary current in induction coils. [5]
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