Lantern Room

Lantern room drawing.

Drawing of lantern room, with lens and clockwork, as it appeared in 1897.

The lantern room originally housed the Fresnel lens, mounted on its bearings at the top of a pedestal, alongside of which sat the lens clockwork. The room was ventilated via small circular vents spaced along the lower wall, which drew air in and exhausted it through the ball vent on top of the lantern room roof. A small crawl-through clamshell hatch sealed with cast iron doors led out onto the top gallery. This enabled the keepers to clean the salt accumulation from the exterior windows, along with any soot deposited there from the tall chimney through which the coal stoves’ exhaust was vented.

Today, the lantern room holds only the light bulb carousel beneath the Lexan plastic Fresnel lens, mounted on a pedestal in the center of the small room. The original cast-iron doors are still there, along with the ball vent at the top. Nothing remains of the lens clockwork except for the sealed slot in the floor through which once passed the cable holding the clockwork’s weight.

The lantern room at the top of the lighthouse. Also visible is the watch room gallery and the lantern room gallery, along with the standby beacon on it's mast.

The lantern room at the top of the lighthouse. Also visible is the watch room gallery and the lantern room gallery, along with the standby beacon on its mast.

The top gallery has the mast holding the battery powered standby beacon that functions in place of the main lantern should a power outage occur.

The lantern room is currently suffering a substantial water leak, leading to considerable corrosion around the baseboard area of the lantern room wall. The Trust has been attempting to locate the source of the leak. An engineering study of the lighthouse structure scheduled for Spring 2014 should go a long way to pinpointing the leak so it can be repaired.

Lantern room.

The base of the lantern pedestal. To the right is the hatch leading to the gallery. A vent is visible in the wall.