Clive - setting a log cracked by frost
on edge and gently tapping with a special (cliving) hammer, turning to
each edge until splitting is completed.
Dressing - shaping the clived stone
to the largest sized slate obtainable.
Heap - a quantity of dressed slates
of all sizes on the ground made up of -
7 hundreds (840 slates) plus 13 large
ones
each hundred is 40 cases (120 slates)
and
each case is 3 slates
Log - a lump of stone of no defined
size quarried for the purpose of making slates.
Parting - a set of slates of the same
length.
Pied - a method of storing logs during
the summer to prevent drying out.
Pit - a mine or quarry for the extraction
of stone for slating.
Sprocket - the additional piece of rafter
fixed to the main rafter to give the tilt at the eaves.
Square - one hundred square feet of
slating laid on the roof. A "heap" should produce about two squares of
slating laid on the roof.
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