[AT] Semi OT - large steam crane still at work

[Dave Merchant]

Someone just posted pix + sound movies (MOV) of a large steam crane 
currently at work
in Manistee, Michigan.

The URL is: http://www.boatnerd.com/news/news14.htm

Scroll down to:
Site Work Begins for New City of Milwaukee Dock - 04/19

This is a Clyde of about 25 tons capacity, built in Duluth in 1938.
It's essentially identical to the ones I photographed in the early 1980's -
http://www.nesys.org/HCEA/DS/DS4.html

However, it appears to have a different type of boiler.
The original boilers on these cranes were tall vertical firetube,
located between the legs of the a-frame strongback.

I wonder if this might be either a marine watertube boiler, or a flash boiler.

 From the article:

Luedtke Engineering's Derrick Boat #12 will be performing much of the site 
work.
The 1938 steam derrick boat, originally hand fired with coal, is a 
contemporary of the
S.S. City of Milwaukee. "Having the old steam derrick here suits us just fine,"
says Jed Jaworski, curator with the project.

"It's value added, a piece of living history just like the City of 
Milwaukee," he adds.
Many spectators are anticipated to watch the derrick boat in operation, 
with its myriad
of chug-a-lug sounds and billows of steam. The derrick boat will be utilized to
install sea wall, dredge and drive piling for the new fifty-foot marina slips.



Dave Merchant
kosh at nesys.com
nesys_com at ameritech.net

http://www.nesys.com
http://www.nesys.org