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Bridging Box

An open-topped iron box to contain and locate the FOOTBRASS of a vertical shaft. Usually has 3 or 4 BRIDGING SCREWS to locate and secure the footbrass to correctly align the shaft. Commonly fitted to BRIDGE TREES to carry the STONE SPINDLE. May also be fitted below the UPRIGHT SHAFT or other vertical shafts.

Alternative terms

Term Language Region
Bredgrass English
corps m de la crapaudine French
spoorpot, kroon Dutch
Stellkasten m German
Tram Pot English

See syntax and abbreviations used in the TIMS Dictionary definitions.
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