The Navy's Forge
Tilt-Hammer
Benjamin Henry Latrobe (1764-1820)
Navy Yard, Forge Tilt-Hammer
Engineering drawing of plans,
elevations, sections, and details
Graphite, ink, and watercolor,
July 1, 1811
Prints & Photographs
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Benjamin Henry Latrobe, who served as engineer
to the Navy Department beginning in 1804, was among this nation's
earliest proponents of steam power. He supervised the construction
of a pioneering industrial complex powered by a single steam engine
at the Navy Yard in Washington, D.C. Latrobe's own rendering of
the complex's 3,700-pound forge hammer illustrates the mechanism
used to work balls of heated scrap iron into useful form. It was
powered by the shaft at the left, that connected it to the steam
engine and was capable of 98 to 100 strokes per minute, which
were tripped by a cam wheel.
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