John;
According to the Santa Cruz Public Library, the depression is called a
"frog." It served to lower the heat required to bake the brick, and
lightened shipping weight. See
http://www.santacruzpl.org/history/work/limefire.shtml
I would have thought that it might also serve to help anchor the
mortar, but that was just my guess.
Cheers,
------------------------------------------------------------
Tim McShane, Assistant--Cultural History
Esplanade Museum
401 First Street SE
Medicine Hat, AB T1A 8W2
Tel: (403) 502-8587
[log in to unmask]
>>> [log in to unmask] 06/28/06 11:59 AM >>>
I thought some member of the list might have the answer to my question.
W
e
have a small sample of bricks (ca. 1840) in our collection that were
made
by a small-scale local brickmaker and have a rectangular, shallow
recesse
d
(for lack of better word) area on one face. The recessed area is about
on
e
inch from edge of brick on all margins and is deepest in the middle of
th
e
brick (I hope I'm explaining this OK!). Is this recessed area a
by-produc
t
of manufacturing the brick, a by product of some method to remove brick
from mold, or does it serve a functional purpose? If this helps, the
bric
ks
are 4 inches wide, 2.5 inches thick, and 8.5 inches long.
Thanks in advance,
John Peterson
Historic Sites Curator
Jackson County Parks & Recreation
Blue Springs, MO 64015
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