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Bird Cage Lanters

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Postby beachbum1616 » Wed Jun 22, 2005 5:21 pm


Can anyone name all the existing lighthouses with bird cage lanterns?
Stephen

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Postby Zachary » Wed Jun 22, 2005 6:30 pm


Old Bailey's Harbor, WI
Waugoshance Shoal, MI
Selkirk, NY
Prudence Island, RI
Old Cape Henry, VI
And I think Scituate, MA has one, I'm not sure
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Postby Zachary » Thu Jun 23, 2005 12:37 pm


Was I right?

Also, the Old SW Pass tower has parts of one on it, it's mostly dissolved away though
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Postby beachbum1616 » Thu Jun 23, 2005 7:07 pm


Acutally, I don't know the answer, I was just looking for it. One of my lighthouse video's states that there are only four remaining in the US and that Selkirk is one of them.

From the looks of it, Prudence Island is one of them as well.
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Postby Zachary » Thu Jun 23, 2005 9:01 pm


The video is probably referring to the first 4 I listed, most people don't usually consider Old Cape Henry to have one, although it is the same as Selkirk's without the outer rail.
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Postby MontaukPoint » Thu Dec 01, 2005 10:21 pm


I believe MONTAUK POINT has one (my favourite lighthouse) :wink:
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Postby MontaukPoint » Fri Dec 02, 2005 7:56 am


I found another one this morning. It is the Waugoshance Shoal Light in Michigan :wink:
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Postby Gary Martin » Fri Dec 02, 2005 9:04 am


I've been in the lantern room at Old Cape Henry numerous times and don't consider that to be a birdcage lantern room. Old Bailey's Harbor, Wisconsin definitely has one and photos of it are on my website. Waugoshance Shoal is another definite.

http://www.coastalbeacons.com/greatlake ... arbor.html
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Postby shirin » Fri Dec 02, 2005 9:21 am


I would have to agree with Zachary's first 4 in his list. Selkirk I've been in and know what a tight little squeeze that bird cage lantern is like. Have visited Cape Henry as well and would have to second Gary's opinon on not including that one on the list. And while it has been awhile since I've been out to visit, I don't think Montauk is one either.
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Postby vacastle » Fri Dec 02, 2005 9:52 am


Well, how do you define a bird cage lantern room?

The Old Cape Henry lantern with it's eight 4 X 6 sash windows on each face that extend all the way from the deck to "above the lighting equipment" it would have held, sure seems to meet the description that the NPS uses:

In the early days, lanterns were made of thin copper frames that held small panes of glass. The glass framing extended from the gallery deck to above the lighting equipment it held. A copper dome topped by a ventilator served as the roof of the lantern. Its design has given it the appearance of a bird cage, and in more recent years it has been known by that name. In addition to using small panes of glass that were of poor quality, these lanterns were generally not of adequate size to hold Fresnel lenses.
from http://www.cr.nps.gov/maritime/ltcomp.htm

The Old Cape Henry Lighthouse was also pre Fresnel lenses having been completed in 1789.

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Postby Pharoslvr » Fri Dec 02, 2005 4:37 pm


Birdcage roofs differ from later models in that they are more convex (dome shape) while the the more contemporary models are either a straight slope or slightly concave.
In the early years of building the LH roofs, the designers and contractors used a type of single piece iron re-bar (mullion/muttin) that ran from the base of the 'lantern' all the way to the centerline of the top of the roof. In other words, each piece of iron bar was continuous....which made for a one piece sidewall and roof combination.
In later years the sidewall...aka...'window wall' and roof became two seperate pieces, thus creating the two distinctively different shapes of roofs. The reason for the two different styles was mainly created as a result of 'improvements' in roof design, as well as the convenience of building the two components seperate from each other. It was also cost effective.

Old Cape Henry IS a birdcage roof....common for lights built in the late 1700's and very early 1800's. New Cape Henry is of the more modern 'straight' slope which became more prevelant in the mid to late 1800's.
The two Cape Henry's are one of the only places in the U.S. where the two roof styles can be compared side by side.
By the way...Montauk is definitely a birdcage styled lantern/roof.

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