Plumb bob reel

Details Plumb bob reel Plumb bob reel

1993-06-09

1994-06-28

Will, Thomas B.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

33392, G01C 1510

Patent

active

053235398

ABSTRACT:
A plumb bob reel capable of retracting, housing, and protecting the entire length of flexible line which is attached to a plumb bob. The reel is generally comprised of a reel housing having a line retaining spool rotatably mounted therein, and a spring retraction member cooperatively positioned with respect to the spool. Further features of the reel include a protruding section which cooperatively receives a specially designed plumb bob, and two ways for accurately guiding and holding the flexible line in vertically aligned relation above a predetermined datum. The two ways of aligning the line are comprised of a knobbed member fixedly attached to the front wall of the housing, and a plurality of longitudinally formed, contiguous grooves through which the flexible line may pass. In addition, the reel is equipped with ways for securely attaching the housing to either ferrous or non-ferrous structures.

REFERENCES:
patent: 1230074 (1917-06-01), Perkins
patent: 1571687 (1926-02-01), O'Loughlin
patent: 2384914 (1945-09-01), Hoagland
patent: 2545321 (1951-03-01), Tumminello
patent: 2637913 (1953-05-01), Williams
patent: 3016616 (1962-01-01), Matson
patent: 3172205 (1962-01-01), Gammon
patent: 3478438 (1969-11-01), Lazar
patent: 4442610 (1984-04-01), Owens, Jr.

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