Maker, Unknown, most likely American.
c. second half 1800's. Brass and bronze hybrid flat bed frame design.
Strike train frames one-half inch thick, going train three-eights inch
thick. Hour strike using rack
and snail system with quarter strike using a count wheel. Jeweled four legged gravity
escapement using jeweled anti-friction wheel impulse rollers. Mercury compensated
pendulum. Eight day duration (three day in current configuration). 27"w x 22"h x
The upper curvilinear bell frame support structure was recreated by Buchanan
to perfectly match the extant pair of strike train frames. The entire
gravity escapement had to be replaced as the one in "as found" condition was
obviously not original and was a very poor attempt to replace what was
missing. The gravity escapement was based on a design by Don Saff, but with
a few modifications. The escapement is completely jeweled including the
impulse pads on the pendulum.
The support for the pendulum incorporates the same curvilinear design as the
bell support structure.
Here is another view of the escapement, only the black cast iron support is
original as the extant gravity escapement was not original and useless.
Another view showing the extent to which Buchanan used his skills to
recreate the bell and pendulum support systems. The bell hammers and their
linkages had to be created as they were missing. The bell resonance is
completely adjustable to make the sound as soft or loud as desired.
There was no dial since this would have been mounted in a very large tall
case where the wooden hood would have held a glass dial with painted
numbers. I had a custom dial and hands made to fit the movement.
This photo shows the large knurl nut used to secure the heavy bronze bells
to their support post. A beautiful finial top.