Assembly for plumb bob and line

Details Assembly for plumb bob and line Assembly for plumb bob and line

1987-10-23

1990-05-01

Cuchlinski, Jr., William A.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

33394, 242 685, G01C 1510

Patent

active

049206575

ABSTRACT:
The assembly includes the plumb bob and line, and a cylindrical rotor mounted eccentrically for eccentric rotation about an axis of rotation. The line is connected at one end to the rotor and at the other end to the plumb bob. The rotor may be rotated to pay out and retract or wind in the line. The plumb bob may be stored within the casing. Side walls of the casing perpendicular to the axis of rotation closely confine the space beyond the rotor ends to confine the line as it is winding in.
Other features include a conical sheath to receive the point of the plumb bob and arms to hold the cylindrical body of the bob; also a dentent cooperating with the casing and the folded handle may be used to hold the handle and the rotor fixed.

REFERENCES:
patent: 266671 (1882-10-01), Bergen
patent: 1571687 (1926-02-01), O'Loughlin
patent: 2637913 (1953-05-01), Williams
patent: 2922599 (1960-01-01), Bigelow
patent: 3016616 (1962-01-01), Matson
patent: 4697349 (1987-10-01), Lee

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