Revolving Machinery:
Standby and Desc:
Chariot float or balls:
Chariot desc:
Length of drop tube:
Clock Weight:
Length of winding time:
Drive During Rewind:
Machinery protection:
Regulated:
Lens Protection:
How color produced:
Red sectors desc:
Where color attached:
Form of colored glass:
Lamp desc:
Type of illuminant:
Candle Power:
Num spare lamps:
Num spare burners:
Lighthouse Inspection Reports Database
Alcatraz Light Station - 1910
Illuminating Apparatus page 2 of 2
clockwork driven by weight
on balls
25' 2"
10 hrs
by glass case
by opening or closing wings of governor, or by putting on or taking off small leaden weights. (abt 1 lb each) This saves tampering with the delicate governor.
Hains, 1
1
none
Report Sections:
Premises | Lantern and Fixtures | Ventilators and Watchroom | Illuminating Apparatus | Closets and Storerooms
Fog Signal General | Fog Signal Equipment | Dwelling | Asst. Keepers Dwellings | Water | Healthfulness
Lighthouse Access | Station Boat Info | Tools and Accessories | Light Vessel Specific | Inspection Reports
Supplemental Reports
Revolving cord:
Size of Clock Cord:
Length of Clock Cord:
How Led:
Diameter and length of clock drum:
metal cord
thru center of tower & down drop tube
Balls description:
Cage to separate balls:
Number of Balls:
Diameter of Balls:
Flat plate enclosed in brass box
21
5/8"
Clock Cord Description
Chariot Balls
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Number of wicks or mantels:
Diameter of outside wick:
Diameter of mantel:
Diameter of circum circle:
1
1.5"
Oil vapor lamp