Reproduction Longcase Clock
I've always loved the simple, yet elegant style of the earliest
Longcase (Grandfather) Clocks that were made mostly by
Dutch Clockmaker's who had moved to England in the late
1600's. One maker in particular,
Ahasuerus Fromanteel, had
cases built to match his movements with a classically
restrained style which was missing from most clocks made by
the early 1700's.

I found a picture in a book of the very one (actually almost
identical to the clock shown in the web link above) which I
really loved and wanted to make. But since there were no
dimensions given other than the overall height and the size of
the dial I was left to figure out the rest of the dimensions with
nothing to guide me except my sense of good proportion
(notice I didn't say "good sense of proportion").

I found that using grid paper helps in these matters as you can
easily work out a ratio (ie. 1 grid = 1 inch, or whatever). A
ballpark sketch was made and certain dimensions were
adjusted until it looked proportionately correct.>>>>>>>
Poor images of proportional sketch on grid paper
The case has begun and patiently waits in my basement for
base molding, a front door, a back, and a hood>>>>

Projects like these, however, tend to be worked on as time and
(most of all) inspiration allows. Once I got to a certain point with
the case I began thinking more and more of the movement that
would live and breathe inside it; and this is where my attention
currently lies.

Since I did not have any info regarding the details of the
original Fromanteel movement (dimensions, train layouts,
striking system, escapement, etc.) I had to go on different
sources in order to design something that would stay relatively
true to the original.
The Case: alone and headless in the basement
At the very least I wanted to have a verge escapement, crown &
contrate wheel which the original would most certainly have had.
The irony of these clocks is that their pendulums were only
about 9 inches long; the first tallcase clocks were designed and
built with the purpose of hiding the weights - there was no such
thing as a long seconds pendulum at that time. Long pendulums
were not mechanically possible with verge escapements
because of the large arc of swing needed for the pallets to
release the crown wheel teeth. Dutch clocks previous to the
tallcase were wall clocks of the exact same mechanical design;
the only difference was that they were hung on the wall and the
weights were visible. There is one other reason for the tallcase
case: the design could support heavier weights to power a
movement which included an intermediate wheel which would
allow the clock to run for 8 days instead of 1. Walls could not
support this much weight, but a freestanding case could.

After much thought I decided to go with a 30-hour movement,
only because clocks with the verge-type of escapement were
never good timekeepers. To me it seems a waste to make an 8
day clock that is off by 5 minutes a day.
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