British Automatic Alarm Bell Company wedge alarm
Stainless steel wind-up wedge door intruder alarm made by the British Automatic Alarm Bell Co Ltd. but manufactured in Germany. The mechanism, similar to a bicycle bell, is attached to a wedge which attaches to the floor/carpet under a door. The alarm is set by winding similar to an alarm clock. If the door is disturbed with force, the sensor pin strikes the bell and rings with an internal hammer. This model was popular with travellers who regularly stayed in hotels which were not always secure. The British Automatic Alarm Bell Company was dissolved in 1908
Picture No
11041588
Media ID
46877528
Size
2635px x 3510px
(2.3MB)
Credit
(c)Maurice Collins Images Collection /Mary Evans Picture Library
Source
Photograph of an original object in the Maurice Collins Collection
Date
circa 1900
