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The City Hall of Ogdensburg,
NY, has an E. Howard movement
with hour strike in its' tower.
The clock was made around 1890.
The parts in this photo are related
to the escapement and pendulum
suspension and have been fully
restored. |
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The large cast
frame of the movement has been
carefully refinished as well as
all the gears and parts that run
inside the frame. This is a view
of the strike portion of the movement. |
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David Kuyt stands
next to the movement to show its'
scale. Also clearly visible, is
the gravity escapement. The large
wheel in the upper left of the
photo is part of the automatic
night time shut off for the strike. |
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This is one of
two drive motors for the clock.
When the clock was moved from
the opera house that burned down,
motors were installed so the clock
would not need to be manually
wound. The clock was made around
1890, the motors were added around
1930. |
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This is the same
motor and gear reduction system
as shown above after it was restored. This
one winds the weight for the time
function. The time portion of
the movement is still weight driven.
The strike portion of the movement
has had the weights eliminated
altogether and is direct driven
by a similar motor and gear reduction
system. |
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The clock as
a whole had been neglected and
was in a state of decay as can
be seen from this photo. In addition
to corrosion, a great deal of
concrete dust had impregnated
the bearings and other working
parts. The brass parts were tarnished
and the activation levers and
swithces were loose and malfunctioning. |
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Here is the same
view of the movement after American
Tower Clock Company had completed
the restoration. In addition to
the surface treatments on all
the different kinds of metals,
new activation levers were fabricated,
installed and adjusted for proper
operation. |
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The large bell
for the hour strike resides out
doors in the lantern style structure
at the very top of the tower.
The dials underneath are cast
iron frames with translucent glass
panels. The dials are illumintaed
from inside. American Tower Clock
Company painted the numerals gold
and the numeral track and markers
black. In this photo, the hands
and motion works (gearing behind
the dial) have not yet be reinstalled. |
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This photo was
taken looking down at my shoes.
It shows the pendulum rod that
is 16 feet long and swijngs a
bob well below in the room below.
The pendulum swings once every
two seconds. The slow pace adds
to the accuracy of the clock.
Any deviation in time keeping
is multiplied fewer times by a
slower moving pendulum. |
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Towers are always
fun to climb. This view shows
a ladder going to the next level
and then an opening with more
ladders above that. The pulleys
that are visible are directing
the steel cable that eventually
ends up pulling the hammer for
the bell at the very top of the
tower. |
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The Ogdensburtg
clock has four dials that are
about 8 feet in diameter. The
shadows cast by the hands are
visible from the inside. |