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Position and secure sheets of glass on tables.

What does a Joiner do?

Positions and secures sheets of glass on table preparatory to grinding and polishing operations: Dumps quantity of plaster onto table and spreads it, using trowel. Guides sheets of glass, lowered by overhead crane, onto plaster-covered table so that glass sheets lie end to end. Inserts stubs between sheets to prevent chipping. Drives wood pegs up through holes along edge of table to prevent glass from shifting or sliding from table. Fills spaces between sheets with plaster to provide continuous smooth surface for grinding and polishing.