beating hammer
A heavy, short-handled hammer, with a bell-shaped
face, used in beating the leaves and sections of a
book so as to flatten and compress them. Such
hammers generally weigh 10 to 14 pounds, and
sometimes even up to 16 pounds. The introduction
of theROLLING
MACHINE (1827) made the beating hammer
virtually obsolete. (172 , 236 )