Abstract: The assembly of individual segments to obtain large-volume containers is facilitated by the edges of the individual segments being provided with projecting support members including cut-outs in which an aligning tool is insertable; an engaging element of said tool for aligning said one individual segment relative to the adjacent segment, which along the edge thereof is in contact with the edge of the first-mentioned individual segment, being brought into engagement with a surface of said adjacent individual segment so that the engaging element will ride or roll along the surface of said adjacent individual segment due to a pivoting or lever movement, the two edges being simultaneously brought to an aligned, coincident position.

Abstract: In order to enable accurate regulation of the automatic opening of explosion cover plates at predetermined differences in pressure the cover plate is not only retained in a rubber-elastic sealing clamping section but additionally is supported by at least one counter-support, e.g. as shown in FIG. 2, constituted by a lever arm which will be swung from its supporting position when the limit load is exceeded.

Abstract: A large container, especially a silo, having a unitary, or one-piece material holding main part. A generally conically shaped unloading hopper is secured to the base of the main part by means of relatively thick, solid flange means which provides exceptional load-bearing properties at critical areas at the juncture of the main part to the unloading hopper. The container can be stacked in nested relation with other containers thereby making storage and shipment of the container more economical.