Vertically flaring concrete form

摘要: A re-usable, convex, conical wall for pouring an upwardly flaring vat consists essentially of axially consecutive, annular form elements having each inner and outer faces connected by two spaced edge portions different length which extend circumferentially about the axis in closed loops. Each element includes a plurality plate members fastened to other juxtaposed relationship. pair consecutive is coupled first coupling member on longer portion one engaged second pair.