Lay out line

Details Lay out line Lay out line

2007-06-19

2007-06-19

Gutierrez, Diego (Department: 2859)

Geometrical instruments

Straightedge type

Cord type

C033S0010LE

Reexamination Certificate

active

11265643

ABSTRACT:
A chalk line apparatus for marking regularly spaced locations. The apparatus comprises a casing for powdered chalk containing a rotatable reel, a wire rope wound on said reel, and an exit opening for the wire rope at one end of the holder. The wire rope is coated with a material that resists retention of chalk, and has evenly spaced short chalk-retaining segments disposed thereon so that when the wire rope is tensioned to about 10 lbs, the segments reside at precisely placed predetermined intervals. When the line is snapped, the chalk-covered short segments leave evenly spaced chalk marks that correspond to the locations of underlying wall studs.

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