Glossary of Terms


Glossary vocabulary



Browse the glossary using this index

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J

J-CLAMP

 Also  Fist Grip or TWIN BASE CLIP - A device used to fasten the end of a wire rope which has been looped over

a thimble to the main rope support.

JACK

A mechanical device used for adjusting elevation.

JIFFY JACKS

Metal proprietary components used in conjunction with adjustable timber legs and timber bearers to form a horse scaffold.

JOB-MADE LADDER

A ladder that is fabricated at a jobsite and is not commercially

manufactured.

JOINT PIN - See Coupling Pin

COUPLING PIN - An insert device used to align lifts or tiers vertically.

JOISTS

Horizontal structural members which directly support sheathing.