Order of Lantern:
Shape of Lantern:
Diameter to glass:
Diameter in the clear:
Number of sides:
Type of bars:
Thickness of bars:
Height glazed:
Number of plates in height:
Number of plates each side:
Thickness of plates:
Size of plates:
Number of storm panes:
Unglazed side of lantern:
what bearings:
Construct Material Lantern:
Construct Material roof / cowl:
Ventilator / cowl:
Lightning spindle:
Desc of Lightning rod:
Balustrade:
Lantern doors:
Floor of lantern:
Watchroom doors:
Diameter parapet:
Lighthouse Inspection Reports Database
Granite Island Light Station
Lantern and fixtures
4th
polygonal
7' 0.5"
6' 6"
10
vertical
35"
one
one
5/16"
26 3/4" x 35.5"
none
Cast iron parapet lined with wood. Verticals wrought iron
Pyramidal, cast iron, copper lined.
cast iron
copper, platinum point.
1/2" copper rod down outside of tower & 4' into rock; also similar rod from stair newel through wall joining the above.
Gallery cast iron, 12' square; balustrade, 2 - 0.5" x 2" flat bar rails, 1 1/4" stanchions, ball tops.
Single fold, cast iron door in parapet, brass fittings
cast iron plates
Iron plate trap door in floor of lantern, with hand hole lift. No watchroom
6' 7 1/4"
Report Sections:
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