Geometrical instruments – Area integrators – Electrical
Patent
1979-12-19
1981-09-15
Haroian, Harry N.
Geometrical instruments
Area integrators
Electrical
G01B 308
Patent
active
042889235
ABSTRACT:
A tape measure includes a housing having an opening and a measuring tape coiled therein including a free end having a hook member attached thereto. The free end of the tape extends through the opening in the housing and a braking lever is pivotally mounted to the housing with its front end adjacent the opening in position to engage the hook member when the tape is in a retracted position. The front end of the lever is normally biased into engagement with the tape, at the housing opening, by a spring, thereby to prevent movement of the tape. A pivot member for absorbing the shock of impact when the hook member engages the front end of the lever during retraction of the tape includes a pivot pin for pivotally mounting the lever to the housing and a shock absorbing element of a deformable, resilient material adjacent the pivot pin for absorbing the shock.
REFERENCES:
patent: 1211480 (1917-01-01), Newton
patent: 1555150 (1925-09-01), Oswald
patent: 2577051 (1951-12-01), Voegtlin
patent: 3164907 (1965-01-01), Quenot
patent: 3499407 (1970-03-01), Reimer
patent: 3510137 (1970-05-01), Freier
patent: 3519220 (1970-07-01), Zelnick
patent: 3820848 (1974-06-01), Kniff
patent: 4057304 (1977-11-01), Gaines et al.
patent: 4128355 (1978-12-01), Leaf
patent: 4153996 (1979-05-01), Rutty
Haroian Harry N.
Roe International Inc.
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