due to a Germanic influence and
some effort to work with base 12
instead of base 10, the quantity of
“long 100” actually meant 120. (A
lot of recent info about penny-
weight for nails misses this point.)
So, a 16 penny ( 16 d.) nail is one
that cost 16 pennies for 120 nails.
Today we have converted pennies into the length, so all 16 d.
nails are 3-1/2 inches long. The
length increases ¼ inch for each
increase of 1 d up to 10 d. Then
each increase in 2 d. is ¼ inch.
At 20 d. each 10 d. increases the
length by ½ inch. There is no
specification about diameter.
; 2 d. = 1” long
; 4 d. = 1-1/2”
; 10 d. = 3”
; 12 d. = 3-1/4
; 16 d. = 3-1/2”
; 20 d. = 4”
Wow! Confusing indeed with-
out a good memory. So, today,
most nails are sold by length and
diameter and no reference is
made to penny. There is no speci-
fication about diameter.
Hope this is enough info to
keep you satisfied for now.
QWe have a customer who is hot pressing hardwood plywood
and is getting tele-
graphing of veneer tape through
the face veneer. The veneer tape
is buried in the glueline. The
customer insists that we “test” a
sample of the plywood with the
ASeveral comments: The common proce- dure is to press faces with the tape up and
then sand it off later. Why isn’t
this being done?
There is a tape that can be
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