Fog Signal Kind:
Time to start:
How long will pressure last:
Manufacturer:
Year of Manufacture:
Characteristic:
Duplication:
Timing device:
If whistle, siren or trumpet, Pressure at which blown:
Height above water:
Compass direction:
Location:
Distance and direction:
Water supply:
Reached from Lighthouse:
Desc of Fog signal building:
Pressure and recording gauge:
Lighthouse Inspection Reports Database
Mary Island Light Station - 1926
Fog Signal General
3rd class Daboll trumpet
11 minutes
4 to 5 minutes
3 sec blast, 3 sec silent, 3 sec blast, 21 sec silent
Engines, compressors, air tanks, water tanks, tripping devices, 1 spare reed.
Cam wheel, cam wheel shaft geared to main pulley shaft
9 lbs.
41 feet
74 degrees
in same building
in same building
drainage off roof
same building
Octagonal shaped frame building, concrete foundation with tower for lantern, rising thru center of structure.
James P. Marsh & Co., Chicago 2 - 3" gauge valves
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