The Delicate Sensitivity of Seattle’s Fire Alarm
An accidental rock throw reveals how fragile the city's early fire alarm infrastructure truly was.
The story, cleaned up
A cleaned-up reading of the newspaper page: spelling and layout repaired, one story lifted off a crowded page. It follows the original closely but it is not a transcription. The original page is below; read it if a detail matters.
The fire bell at department headquarters on Columbia street sounded a false alarm of fire yesterday afternoon about 3 o'clock. It was supposed the wires were crossed in some part of the city and the electrician made an investigation, which resulted in the discovery that the alarm was caused by a boy throwing rocks. The urchin threw a good-sized rock, which hit the bell in the Battery street engine-house, and the jar caused an alarm to sound at the headquarters bell, about fifteen blocks away. The electric alarm machinery is so delicate that any kind of a violent jar against a pole whereon are suspended alarm wires will cause the big bell to tap once. The blow of a sledge hammer against a pole which supports an alarm-box may cause the box to go off and an entire alarm to sound which brings the department out.
“The electric alarm machinery is so delicate that any kind of a violent jar against a pole whereon are suspended alarm wires will cause the big bell to tap once.”
Today's smart sensor networks are marvels of modern engineering, but in 1892, a single mischievous boy could trigger a massive municipal response. This story illustrates the era's reliance on fragile, analog systems that were essentially held together by tensioned wire and luck.
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