Geometrical instruments – Distance measuring – By flexible tape
Patent
1992-08-25
1993-06-01
Will, Thomas B.
Geometrical instruments
Distance measuring
By flexible tape
33759, G01B 310
Patent
active
052148599
ABSTRACT:
The leading end of a tape measure can be pushed over an uneven surface such as a shingled roof by coupling a sled or ski to the end of the tape. The sled has a smooth lower surface. A forward end of the sled is upraised so as to present a curved surface to obstacles. As the tape is pushed along the surface, the sled is pushed by the tape. The sled prevents the end of the tape from snagging on objects, by gliding over obstacles.
REFERENCES:
patent: 3745663 (1973-07-01), Dodge
patent: 4300289 (1981-11-01), DeHaven
Mantooth Geoffrey A.
Will Thomas B.
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