Because support structure 10 is basically the same as already described except for {TAIL ~ the provision} of {HEAD ~ the spring biasing} means for the screens and top, the following discussion will principally deal with this difference along with other structural distinctions that exist with respect to the embodiment shown and described in FIGS 1 through 9 
Because support structure 10 is basically the same as already described except for { TAIL ~ the provision } of { HEAD ~ the spring biasing } means for the screens and top , the following discussion will principally deal with this difference along with other structural distinctions that exist with respect to the embodiment shown and described in FIGS 1 through 9
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH