Modern Fire Alarm Signalling

Issue 5 and Volume 80.

Modern Fire Alarm Signalling Boll Strikers and Whistle Blowing Machines—Description and Care THIS is the twenty-first of a series of articles on the care, installation and repair of various phases of fire alarm work. The author has had practical experience in this field, and he will answer questions on this subject that are submitted to him by the readers, free of charge. The only condition is that a stamped envelope must be enclosed for reply. Description A bell striker or whistle blowing machine is an electro-mechanical means of remotely operating a whistle or bell. There are several types and sizes of these machines and the method of operation is the same in all. The size of the bell striker is dependent upon the size of the bell itself. They are built in four different sizes, and are capable of operating strikers on all sizes of bells. The whistle blowing machine…

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