Storage rack rail member

Claim 1

AN ARTICLE SUPPORTING MEMBER HAVING A U-SHAPED CROSS SECTION WHICH INCLUDES A LOWER BASE PORTION AND A PAIR OF UPSTANDING PARALLEL LEGS EXTENDING SUBSTANTIALLY NORMAL THERETO, THE EXTREMETIES OF SAID LEGS BEING FORMED INTO RETURN PORTIONS EXTENDING INWARDLY TOWARD EACH OTHER AND DOWNWARDLY TOWARD THE BASE PORTION TO PROVIDE SPACED FLANGES DISPOSED BETWEEN SAID LEGS; A PLURALITY OF PAIRS OF UPWARDLY FACING, TRANSVERSELY ALIGNED HOLES FORMED IN SAID RETURN PORTIONS, EACH HOLE HAVING AND UPPER PORTION, A LOWER PORTION AND SIDE PORTIONS EXTENDING INWARDLY AND DOWNWARDLY ALONG ONE OF SAID RETURN PORTIONS; THE TRANSVCERSE SPACING BETWEEN THE UPPER PORTIONS OF EACH PAIR OF HOLES EXCEEDING THE TRANSVERSE SPACING BETWEEN THE LOWER PORTIONS THEREOF; A PLURALITY OF ROLLER ELEMENTS EACH INCLUDING AN AXLE HAVING AN END-TO-END DIMENSION SLIGHTLY IN EXCESS OF THE TRANSVERSE SPACING BETWEEN THE UPPER PORTIONS OF A PAIR OF HOLES WHEREBY A ROLLER ELEMENT MAY BE PRESSED INTO ENGAGEMENT WITH A PAIR OF HOLES AND RETAINED THEREIN BY AN OVERLAPPING RELATION BETWEEN THE UPPER PORTIONS OF SAID PAIR OF HOLES AND THE ENDS OF THE ROLLER ELEMENT AXLE.