Fog Signal General

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

Point Bonita Light Station

Fog Signal General

Brown's steam fog sirens operated with counter shaft & 2 belts instead of 1. Belt from engine to counter shaft works with 1/4 turn.

5 minutes

Spear & Hague, San Francisco

1877

There is a heater connected with furnace for burning oil, with 2 pumps mounted on it. Pumps are Worthington. Sirens connected to boilers by 2.5" galv. pipe. 5 sec blast every 35 sec.

Every part except water supply pump, oil heater & smokestack.

Worm & worm wheel connected with engine shaft by a belt.

siren blown at 70 lbs

102' 6"

about SW 1/8 W

aid vessels into & out of bay during fog.

60' W

Obtained by windmill & pump on N side of reservation.

by concrete steps, signal base being 10' lower than tower base.

Brick structure measuring inside 25' 2" x 27' 2" with hip roof, 14" high walls with an air space, 4 truss beams. There is a tool room on S side measuring inside 12' 7.5" x 13' 3", Walls 10' 6" high, containing tool closets, bench & phone.

Report Sections:

Premises | Lantern and Fixtures | Ventilators and Watchroom | Illuminating Apparatus | Closets and Storerooms

Lighthouse Access | Station Boat Info | Tools and Accessories | Light Vessel Specific | Inspection Reports

Supplemental Reports

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