Knockdown adjustable railing construction

Claim 1

AN ADJUSTABLE RAILING CONSTRUCTION COMPRISING A PAIR OF VERTICAL POSTS; LONGITUDINALLY-EXTENDING UPPER AND LOWER RAILS MOUNTED BETWEEN SAID POSTS; A PLURALITY OF PARALLEL VERTICAL PICKETS EXTENDING BETWEEN SAID RAILS, SAID UPPER AND LOWER RAILS EACH INCLUDING A PAIR OF STRINGER MEMBERS OF L-SHAPED ANGULAR CONFIGURATION EACH HAVING A VERTICAL FLANGE AND A HORIZONTAL FLANGE, THE VERTICAL FLANGES OF SAID STRINGER MEMBERS HAVING LONGITUDINALLY-SPACED INWARDLY DIMPED HOLES, SAID PICKETS HAVING OPENINGS ADJACENT EACH END, THE VERTICAL FLANGES OF SAID STRINGER MEMBERS ABUTTING OPPOSITE SIDES OF SAID PICKETS AT THE UPPER AND LOWER ENDS THEREOF WITH THE DIMPLED HOLES OF EACH PAIR OF STRINGER MEMBERS IN ALIGNMENT AND REGISTERING WITH THE RESPECTIVE OPENINGS IN SAID PICKETS, THE HORIZONTAL FLANGES OF THE UPPER AND LOWER PAIRS OF STRINGER MEMBERS BEING OUTWARDLY DISPOSED; A PLURALITY OF RIVETS EXTENDING THROUGH REGISTERING HOLES AND OPENINGS TO PROVIDE RELATIVE PIVOTAL MOVEMENT OF SAID PICKETS WITH SAID UPPER AND LOWER PAIRS OF STRINGER MEMBERS IN A HINGED PARALLELOGRAM LINKAGE, AND SAID RIVETS HAVING HEADS RECESSED WITHIN THE DIMPLED PORTIONS OF SAID VERTICAL FLANGES FLUSH WITH THE OUTER FACES THEREOF; A LOWER LONGITUDINALLY EXTENDING CAP MEMBER OF U-SHAPED CROSS-SECTION INCLUDING A PAIR OF VERTICAL SIDE FLANGES WITH OPPOSED INTERIOR LONGITUDINALLY-EXTENDING SLOTS AND AN INTERCONNECTING BIGHT WEB, THE OPPOSED SLOTS OF SAID LOWER CAP MEMBER SLIDABLY RECEIVING THE RESPECTIVE HORIZONTAL FLANGES OF THE LOWER PAIR OF STRINGER MEMBERS AND THE SIDE FLANGES COVERING THE OUTER FACES OF THE VERTICAL FLANGES OF SAID LAST-MENTIONED PAIR OF STRINGER MEMBERS SO AS TO CONCEAL THE HEADS OF SAID LOWER RIVETS FROM A VIEW; A LONGITUDINALLY-EXTENDING HANDRAIL CAP OF INVERTED U-SHAPED CROSS-SECTION INCLUDING A PAIR OF LATERALLY-SPACED FLANKS DOWNWARDLY EXTENDING FROM A BALUSTER WEB, SAID FLANKS HAVING INTERIOR OPPOSED LONGITUDINALLY-EXTENDING RECESSES SLIDABLY RECEIVING THE RESPECTIVE OPPOSED HORIZONTAL FLANGES OF THE UPPER PAIR OF STRINGER MEMBERS AND COVERING THE OUTER FACES OF THE VERTICAL FLANGES THEREOF SO AS TO CONCEAL THE HEADS OF SAID UPPER RIVETS FROM VIEW AND SAID BALUSTER WEB OVERLYING AND CONCEALING THE UPPER ENDS OF SAID PICKETS FROM VIEW; AND BRACKET MEANS FOR SECURING SAID UPPER AND LOWER RAILS TO SAID POSTS SO AS TO ENABLE SELECTIVE ADJUSTMENT OF THE SLOPE OF SAID RAILING CONSTRUCTION.