Geometrical instruments – Area integrators – Electrical
Patent
1984-01-09
1986-03-04
Haroian, Harry N.
Geometrical instruments
Area integrators
Electrical
33150, 33192, G01B 502
Patent
active
045732701
ABSTRACT:
A measuring device that performs a measurement of the amount of distance between a preselected reference point and a remote object. The device is made so that the measurement made is stored therein until the device can be retrieved from the remote location and brought to a location where it can be conveniently read. A first rotatably mounted, fixed position gear member is engaged by a first rack gear member which rack gear member is reciprocated by manipulation of a handle member. The first rotatably mounted gear member is fixedly secured to and disposed concentric with a second fixed position rotatably mounted gear member, and the second gear member engages a second rack gear member that is fixedly secured to a ruler member that is slideably mounted within a housing. Thus, manipulation of the handle member effects extension of the ruler from the housing or retraction thereinto. A ledge-detecting member is provided at the forward end of the housing so that the distance from a ledge to a remote object is measured when the ruler extends from the housing and abuts the remote object.
REFERENCES:
patent: 1262678 (1918-04-01), Lapoint
patent: 1703736 (1929-02-01), Jacob
patent: 2770046 (1956-11-01), Wichmann
Haroian Harry N.
Miller Stanley M.
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