| http://www.w3.org/ns/prov#value | - BRIEF DESCRIPTION OF THE DRAWINGS In the drawings: FIG. 1 is a side view of my invention in use; FIG. 2 is a side view of my invention per se; FIG. 3 is a cross sectional view of the structure shown in Fig 2; FIG. 4 is an end view of my invention; ' FIG. 5 is a detail view illustrating therelationship between rope and central shaft; and FIG. 6 is a chart of various pawl positions.
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