FIG. 1 is a perspective of a first embodiment;
FIG. 2 is a front elevation;
FIG. 3 is a rear elevation;
FIG. 4 is a right side elevation;
FIG. 5 is a left side elevation;
FIG. 6 is a top plan;
FIG. 7 is a bottom plan;
FIG. 8 is a perspective of a second embodiment;
FIG. 9 is a front elevation;
FIG. 10 is a rear elevation;
FIG. 11 is a right side elevation;
FIG. 12 is a left side elevation;
FIG. 13 is a top plan;
FIG. 14 is a bottom plan;
FIG. 15 is a perspective of a third embodiment;
FIG. 16 is a front elevation;
FIG. 17 is a rear elevation;
FIG. 18 is a right side elevation;
FIG. 19 is a left side elevation;
FIG. 20 is a top plan; and,
FIG. 21 is a bottom plan.