[Bell Historians] Saw Pit Frame
Roderic Bickerton
rodbic at XW0xSroJj5ZjX2fApxg3BKSsP2kzRFYb6CqnnM8atILGd4bshOOGX0et-Y9YBKd7QSvQHyIEdrc3.yahoo.invalid
Thu May 26 11:01:14 BST 2011
I do detest the term, it is not descriptive or
correct. A saw pit is longer than a bell pit so
conceivably could be likened to a long Siamese
bell pit.
A saw pit a single pit so there is no suggestion
of parallel pits. (it would have to be as heavy
baulks of timber need to be moved about, in an
era pre overhead lifting equipment)
parallel pits do not fit the maximum bells in
the minimum space, H frames or the L&G set up
with isolated bearing towers on a massive
grillage do that.
think it through, Siamese pits set 2 bells in
the same width pit. Bearing towers do not
constrain anything so the layout needs only to
consider volume of rotation and thickness of the
bearing tower at the bell lip. H or A frames are
a little more con straining, but much less than
parallel Siamese pits.
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