Segmented mold for column construction

Abstract

Semi-circular mold members are joined along abutting side edges which are beveled. A retainer on each member confines a beveled edge of a cooperating mold member preventing edge displacement and effecting a find tight joint. The mold members are closed by straps which also serve to join assembled stacked molds. Mold member lengths may be varied to provide staggered joints between stacked segments.

1 - A mold for the forming of a column including,
 elongate members of arcuate section having top and bottom ends and first and second lengthwise disposed beveled edges,   a retainer on said elongate members located adjacent said first beveled edge and projecting tangentially therefrom to receive and confine said second beveled edge displacement.   
   
   
       2 - The mold claimed in  claim 1  wherein said retainer is and elongate plate. 
   
   
       3 - The mold claimed in  claim 1  wherein the first and second beveled edges lie in chordal planes of the mold when assembled. 
   
   
       4 - The mold claimed in  claim 3  wherein the chordal planes of said beveled edges intersect a radial plane of the mold to define and included angle of 15 to 25 degrees.