Device for suspending plane articles such as envelopes, portfolios, and the like, from a rail

Claim 1

MEANS FOR SUSPENDING A PLANE ARTICLE ON A SUSPENSION RAIL, COMPRISING A STRIP FIXEDLY CONNECTED TO SAID ARTICLE, TWO HOOKS HAVING THEIR HOOKS NOSES POINTING TOWARDS EACH OTHER ON SAID STRIP, EACH OF SAID HOOKS PARTLY DEFINING A PASSAGE OPENING FOR SAID RAIL, ONE OF SAID HOOKS BEING FIXEDLY CONNECTED TO SAID STRIP AND THE OTHER HOOK BEING PIVOTED TO SAID STRIP TO BE MOVABLE THROUGH AN ANGLE BETWEEN TWO POSITIONS COMPRISING A FIRST POSITION WHEREIN SAID HOOK NOSES ARE SPACED APART MORE THAN THE WIDTH OF SAID RAIL AND A SECOND POSITION LESS THAN THE WIDTH OF SAID RAIL, SAID HOOKS IN SAID SECOND POSITION CONFINING THE CROSSSECTION OF SAID RAIL, AND IN THE SUSPENDED POSITION OF THE ARTICLE THE PIVOT OF SAID PIVOTED HOOK BEING LOCATED LOWER THAN THE HOOK NOSES AND SPACED FROM A VERTICAL LINE THROUGH THE CENTER OF GRAVITY OF SAID PIVOTED HOOK, THE DIMENSIONS ARE SUCH THAT SAID PIVOTED HOOK ABUTS AGAINST SAID RAILS SO THAT IT HAS A FIXED POSITION IN TIME FOR THE SUBSEQUENT SWIVELING OF SAID STRIP TO TAKE PLACE FORCIBLY ABOUT THE PIVOT OF SAID PIVOTED HOOK ONLY, AS A RESULT OF WHICH SAID HOOK NOSE OF SAID FIXED HOOK IS SURE TO CATCH ON AN EDGE OF SAID RAIL AS IT MOVES FROM SAID FIRST POSITION TO SAID SECOND POSITION AS A RESULT OF THE WEIGHT OF THE ASSEMBLY.