![]() ![]() If extra line was not brought to the particular location on the worksite where work was being done at the time of the breakage, an extraordinary amount of time, and therefore money, is lost until new line is found and attached to the plumb bob. When breakage of the line occurs on the worksite, work must come to a halt until the line is replaced. Therefore, the line is constantly being cut due to the chafing and slicing caused through contact with other tools and foreign objects. In traditional plumb bobs, there are no means of housing and protecting the flexible line attached thereto. The flexible line then becomes a vertical extension of this datum, thereby providing surveyors, and other workers who may have an obstructed view of the actual datum, with the ability to focus in on the line and make accurate lateral alignments from the datum. The worker may, of course, adjust the positioning of the plumb bob until it becomes vertically aligned with the predetermined datum. In practice, it is typical for a worker to hold the free end of the flexible line in vertically aligned relation above a predetermined datum such that the plumb bob is suspended slightly above the datum. A plumb bob is basically comprised of an elongated, frusto-conically shaped, weighted member attached to one end of a flexible line (i.e., string). To accurately establish these point(s), a tool termed a plumb bob is commonly employed. In surveying and construction, it is quite often necessary to establish a point, or set of points, which vertically, or laterally, align with a preexisting point (datum). The present invention further relates to reels which fully retract and protect flexible plumb bob lines. The present invention broadly relates to tools used in the construction and surveying industries and, more specifically, to reels for use in combination with plumb bobs.
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