Illuminating Apparatus

Kind of Apparatus:

Intensity in Candles:

Name of Maker:

Year Made:

Marks and Number:

Order of Apparatus:

Inside Diameter:

Light Characteristic:

Time of revolution:

Flash interval:

Duration of flash:

Arc of each fixed part:

Number of panels:

Number of flash panels:

Arc of each:

Number of elements in
central drum:

Number of prisms above
central drum:

Number of prisms below
central drum:

Does Apparatus revolve?:

Is there a Revolving Belt:

Revolving panels:

How is flash produced:

Num of Vertical elements panel:

Fixed lens covered:

Pedestal:

Service Table:

Draft Tube description:

Lighthouse Inspection Reports Database

Alcatraz Light Station - 1907

Illuminating Apparatus page 1 of 2

Barbier & Renard, Paris

no date

none

4th

19.5"

White flash every 15 sec.

30 sec.

15 sec center of flash

2 sec

yes

Whole apparatus revolves around central pin, on steel balls.

4 iron rods covered with brass

iron

Tin tube 2 3/4" dia. secured to cross braces, fitted with funnel at lower end. It stands clear of lens, about 6", no damper.

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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