Wiktionary

pit frame

English edit

Etymology edit

pit +‎ frame

Noun edit

pit frame (plural pit frames)

  1. (mining) A headframe.[1]

References edit

  1. ^ Ernst, Dr.-Ing. Richard (1989). Wörterbuch der Industriellen Technik (5th ed.). Wiesbaden: Oscar Brandstetter, 1989. →ISBN
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