Nailable metal flooring

Claim 1

IN A NAILABLE METAL FLOOR COMPRISED OF JUXTAPOSED STRIPS EACH HAVING A HORIZONTALLY DISPOSED LONGITUDINALLY EXTENDING DECK PORTION, EACH OF SAID DECK PORTIONS PROVIDED ALONG EACH LONGITUDINAL EDGE THEREOF WITH DEPENDING FLANGES, SAID FLANGES BEING DISPOSED IN OPPOSED RELATION TO PROVIDE THEREBETWEEN A NAIL RECEIVING GROOVE, ONE FLANGE OF EACH STRIP TERMINATING INTO A BASE MEMBER EXTENDING LATERALLY FROM SAID FLANGE IN A SUBSTANTIALLY PARALLEL PLANE WITH RESPECT TO SAID DECK PORTION, THE OTHER FLANGE OF EACH OF SAID STRIPS TERMINATING INTO A CONNECTING FOOT, SAID BASE MEMBER OF EACH OF SAID ONE FLANGE PROVIDING MEANS TO INTERENGAGE WITH THE CONNECTING FOOT OF THE NEXT JUXTAPOSED STRIP, SAID CONNECTING FOOT OF EACH OF SAID OTHER FLANGES PROVIDING INTERENGAGING MEANS COOPERATING WITH SAID FIRST MENTIONED MEANS SO AS TO PROVIDE A SEALED SELF-LOCKING CONNECTION BETWEEN EACH OF SAID JUXTAPOSED STRIPS, SAID INTERENGAGING MEANS PROVIDED BY SAID CONNECTING FOOT COMPRISES A TOE EXTENDING TRANSVERSELY AND TO ONE SIDE OF SAID OTHER FLANGE AND A RECESS FORMED IN THE LOWER FACE OF AN ADJACENT THE OPPOSITE END OF SAID FOOT TO COOPERATE WITH SAID MEANS PROVIDED BY SAID BASE MEMBER FOR LOCKING SAID CONNECTING FOOT TO SAID BASE MEMBER SO AS TO PROVIDE A SEALED SELF-LOCKING CONNECTION BETWEEN EACH OF SAID JUXTAPOSED STRIPS.