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a. The timber or other material placed behind and around the main
supports. See also: lagging; lofting. Nelson
b. Strips or light bars of wrought iron bent over at the ends and wedged
between the bars and the roof. Fay
c. Small boards or patches that prevent dirt from entering an excavation
through spaces between sheeting or lagging planks. Nichols, 1
d. Bars placed diagonally to space and stiffen members, as in a built-up
column. Crispin
e. Eng. Wood placed inside the sets of timber as a tie from prop to prop.
Also called stringing piece. See also: bracingf. N. Staff. Timbers placed across the tops of bars or caps to secure the
roof between the timbers. Fay
Source:
Dictionary of Mining, Mineral, and Related Terms
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