Abstract: Disclosed is a method and apparatus for braking a selected group of rollers in a live roller conveyor in which groups of rollers are driven by belts looped about a torque tube carried for rotation about a drive shaft and maintained in frictional contact therewith by the tension in the means belts. The brake means comprises a member carried on a pivotally mounted cam and movable between an "on" position in which the member is in contact with and applies pressure to the torque tube and an "off" position out of contact with the torque tube. In the "on" position the member applies pressure to the torque along a line radially of the drive shaft that cause the tube to move into a position in which it is coaxially aligned with the drive shaft whereby the frictional drive between the torque tube and the drive shaft is disengaged thereby bringing the rollers associated with the torque tube to a halt.

Abstract: The invention is concerned with a shelving structure of the kind which is assembled from a number of vertical elements (struts) and interconnected horizontal elements (beams), and in particular to a shelf for such a shelving structure. Such shelves are conventionally formed from sheet metal, comprising a horizontal shelf panel and flanges extending vertically downwardly from the shelf panel on at least two sides thereof, each flange being folded backwardly on itself to increase the strength of the flange. In accordance with this invention, each flange is so folded as to provide a pocket in which an elongate reinforcing member is positioned, such reinforcing members engaging the underside of the shelf panel.