Flexible post binder and compression mechanism therefor

Claim 1

A COMPRESSION MECHANISM FOR A FLEXIBLE POST BINDER COMPRISING A CHANNEL HAVING A PAIR OF OPPOSITELY LATERALLY DISPOSED RAILS, A PAIR OF OPPOSITELY INWARDLY EXTENDING SPACED OVERHANGING PORTIONS CARRIED BY SAID RAILS AND A PAIR OF OPPOSITELY DISPOSED INTURNED END PORTIONS, A PAIR OF COMPRESSOR MEMBERS NORMALLY SLIDABLY DISPOSED WITHIN SAID CHANNEL, EACH OF SAID COMPRESSOR MEMBERS FORMED WITH A PAIR OF OPPOSITELY LATERALLY DISPOSED UPWARDLY OPENING SUBSTANTIALLY V-SHAPED HOOK MEMBERS EACH HAVING A RESILIENTLY CONNECTED INWARDLY MOVABLE PORTION, A BRIDGE PORTION INTERVENING SAID HOOK MEMBERS, EACH OF THE INWARDLY MOVABLE PORTIONS OF EACH OF THE HOOK MEMBERS OF A COMPRESSOR MEMBER BEING NORMALLY DISPOSED BETWEEN ONE OF THE OVERHANGING PORTIONS OF SAID CHANNEL AND LYING ALONG THE RAILS THEREOF, THE SPACING BETWEEN THE OVERHANGING PORTIONS OF SAID RAILS BEING GREATER THAN THE SPACING BETWEEN THE APEXES OF THE V-SHAPED HOOKS BUT LESS THAN THE SPACING BETWEEN THE OUTER EXTREMITIES OF SAID HOOKS; EACH OF SAID COMPRESSOR MEMBERS BEING ALSO ADAPTED TO BE SNAPPED INTO SAID CHANNEL FROM A POSITION OUTSIDE THE PLANE THEREOF.