Tool for marking chalk lines and plumb lines

Details Tool for marking chalk lines and plumb lines Tool for marking chalk lines and plumb lines

1994-10-28

1995-11-14

Fulton, Christopher W.

Geometrical instruments

Straightedge type

Cord type

33413, B44D 338

Patent

active

054654947

ABSTRACT:
A chalk line tool consists of a chalk dispensing compartment, a reel for string and a grinder that rotates with the reel. The chalk dispensing compartment accepts chalk sticks, which the grinder grinds into the chalk dust that coats the string. The grinder consists of a drum with integral grinding teeth. When the drum rotates in the direction that corresponds to the unwinding of the string from the reel, the grinding teeth grind the end of the chalk stick. The chalk tool is easily, quickly and neatly loaded by dropping the chalk stick into the chalk dispensing compartment.

REFERENCES:
patent: 1338935 (1920-05-01), Kerr
patent: 1505286 (1924-08-01), Peterson
patent: 2655728 (1953-10-01), Cook
patent: 2659974 (1953-11-01), Scudder

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