Abstract: A method for erecting a generally cylindrical structure such as a tank and an apparatus erected in accordance with the method. The method includes a step of positioning a plurality of pre-assembled arcuate segments of a cylindrical wall at a location near a foundation on which the structure is to be erected. A first arcuate segment is disposed at a corresponding location on the foundation. Subsequent arcuate segments are also disposed at intended locations on the foundation such that segments intended to be adjacent to one another have axially-extending edges abutting one another. When positioning is completed such that an arcuate wall extends through a full 360°, seams between the various segments are sealed such as by welding.

Abstract: A seed corn dryer capable of being switched between a single pass mode and a dual path mode of operation. The invention includes an air supply unit adapted to delivery drying air to only one dryer plenum in a dual path mode and to both dryer plenums in a single pass mode. One air supply unit includes a supply upper plenum and a supply lower plenum with a closable air passage therebetween. The dryer includes a center plenum partitioned into upper and lower plenums, with a series of corn bins on either side. Each bin has an upper inside air door, a lower inside air door, a lower outside air door and an upper inside air door. In one single pass mode, air is forced into both upper and lower dryer plenums, then either up or down in a single pass through an individual bin, exiting to the outside. In one dual path mode, air is forced only through the upper dryer plenum, then downward through a first bin, through the lower plenum, upward through a second bin, exiting through an upper outside air door.

Abstract: A conveyor/elevator for moving bulk granular materials from a first location, at a designated height, to a second location, at an elevated height. The apparatus includes an endless conveyor web which is tensioned and has oppositely facing elevating and return runs. A plurality of carriages or buckets are attached to the conveyor web, and, as the web is driven, the granular material is introduced into the buckets at the first location proximate the bottom of the elevating run. The carriages or buckets into which the material has been introduced move, thereafter, upwardly along the elevating run and over the apogee of the structure. Each bucket has a floor which, when the bucket is moving along an elevating run, extends, at an acute angle, upwardly and away from the conveyor web. When the bucket moves along the return run, the floor extends, at the same angle, downwardly and away from the conveyor web.