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Hopper

Hopper

What is the hopper? 

Tramòggia s. f. [lat. trimŏdia "container that contains three moggi", comp. from tri- "three" and mŏdius "moggio"] (pl. -ge). Meaning: 1. a. Device used to facilitate the unloading, by gravity, of loose materials, in powder or in small pieces, consisting in the simplest form of a container with the shape of a truncated pyramid or cone, with a smaller base at the bottom equipped with an opening (mouth) closed by a hatch. It is used in some operating machines such as dies and presses, in gas generators, in...