from The Century Dictionary and Cyclopedia

  • n. A wooden tool, used by hand in the making of sand-molds in a foundry, by which the sand is compacted in the flask around the pattern. Large ones are used with two hands and smaller ones with one.
  • n. A mechanical apparatus used for the same purpose, operated by compressed air, particularly in connection with power molding-machines.
  • n. A combination of power-rammers used to produce a uniform pressure all over a flask by pneumatic pressure brought upon all at once, with equalizing lovers to prevent concentration of pressure at any point.


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