drop elbow
A pipe elbow, 1 having lugs on the sides for attaching it to a support.
Glossary
drop curtain
On the theater stage, any curtain that moves up and down, rather than from side to side.
Glossary
drop cloth
A large sheet of cloth, paper, or plastic which is spread over a floor, furniture, etc., as a protection against
Glossary
drop chute
A device used to confine or to direct the flow of a falling stream of concrete; may be articulated or