Strand holder and dam for prestressed concrete molds

Claim 1

A STOP-DAM DIVIDER AND STRAND HOLDER FOR USE IN THE CASTING AND PRODUCTION OF PRE-STRESSED PRE-CAST CONCRETE PILINGS AND OTHER STRUCTURAL FORMS COMPRISING A HOLLOW BOX SHAPED UPPER PORTION HAVING A PLURALITY OF VERTICALLY DISPOSED SLOTS IN THE SIDES THEREOF ADAPTED TO PERMIT THE PASSAGE OF LONGITUDINALLY EXTENDING TENSIONED STRANDS THERETHROUGH, A PLURALITY OF STRAND HOLDING MEMBERS ADAPTED TO SLIDABLY FIT WITHIN SAID SLOTS BEING WIDE ENOUGH TO EXTEND FROM ONE SIDE OF SAID BOX SHAPED UPPER PORTION TO THE OTHER SIDE IN A MANNER WHEREBY THE OUTER SIDE EDGES OF SAID STRAND HOLDING MEMBERS ARE FLUSH WITH THE OUTER SIDES OF THE BOX WHEN THE STRAND HOLDERS ARE IN ASSEMBLED RELATION THEREWITH, EACH STRAND HOLDER HAVING A PLURALITY OF HORIZONTALLY EXTENDING STRAND RECEIVING SLOTS AND SHOULDERS ADAPTED TO RECEIVE AND SUPPORT A TENSIONED STRAND, EACH STRAND HOLDER BEING OF A THICKNESS NEARLY EQUAL TO THE WIDTH OF THE SLOTS OF THE UPPER BOX PORTION WHEREBY TO CLOSE THE SLOTS AND PREVENT PASSAGE OF LIQUID OR PLASTIC CONCRETE THERETHROUGH, AND A LOWER BOX SHAPED PORTION ADAPTED TO FIT EXACTLY TOGETHER WITH THE UPPER PORTION WHEN PLACED IN ASSEMBLED RELATION WITH THE UPPER PORTION AND THE STRAND HOLDING MEMBERS IN A MANNER TO PREVENT THE FLOW OR PASSAGE OF LIQUID OR PLASTIC CONCRETE BEYOND THE STOP-DAM.