Tape measure

Geometrical instruments – Distance measuring – By flexible tape

Patent

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Details

33769, G01B 310

Patent

active

049726005

ABSTRACT:
A tape measure having sidewalls spaced apart a distance slightly greater than the width of the tape to define a small clearance at opposite edges of the tape with the sidewalls. The sidewalls define midway therebetween a center plane. A peripheral portion of the sidewalls adjacent the peripheral wall of the housing defines guide means adjacent the tape-passing opening for causing the centerline of the tape, as it is passed through the opening, to be accurately at the center plane, thereby effectively minimizing edge wear of the tape in the use of the tape measure.

REFERENCES:
patent: 467280 (1892-01-01), Lane
patent: 655052 (1900-07-01), Brunello
patent: 1148306 (1915-07-01), Fritz
patent: 2914269 (1959-11-01), Freeman

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