Wiktionary

pit frame

English

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Etymology

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From pit +‎ frame.

Noun

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pit frame (plural pit frames)

  1. (mining) A headframe.[1]

References

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