Geometrical instruments – Area integrators – Electrical
Patent
1981-06-11
1984-01-03
Haroian, Harry N.
Geometrical instruments
Area integrators
Electrical
248231, G01B 330, G01B 514
Patent
active
044235569
ABSTRACT:
An alignment, marking or positioning device is provided by a base, a chain and a retractor. The base is concave on a portion of its lower surface and the chain is rotatably attached to the base of the corner adjacent to the surface. On the other side, the base has a slotted arcuate finger. A hook extends downwardly through the slot and engages the chain when it is placed around a shaft, pipe, chuck or the like. The hook extends through the slot, a semi-circular anchor means which slides within the finger and is snugged by a retractor which may be a knurled knob where a threaded hook shaft is utilized or some form of a camming device. The base is provided with a means for attaching gauge holders, scribes, positioning devices, etc.
REFERENCES:
patent: 2634939 (1953-04-01), Voss
patent: 3525158 (1970-08-01), Torlay
patent: 3631604 (1972-01-01), Schenavar
patent: 3664029 (1972-05-01), Glucoft
patent: 4094612 (1978-06-01), Krieg
Haroian Harry N.
Herring Joseph C.
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