Abstract: A depletion indicating mechanism allows for visual inspection of the quantity of components contained in a storage bin. The storage bin is mounted on a fixed frame structure, such as a wall, and the bin is held in a tilted position in opposition to the gravitational force acting on the bin. A mechanism is responsive to the change of weight of the bin as the quantity of components is reduced so that angular displacement of the bin occurs. The mechanism amplifies the angular displacement of the bin into corresponding depletion measurements on a mechanical gauge which allows for visual inspection of an indicator to quickly determine the degree of bin depletion.

Abstract: An extruded back panel is adapted to be mounted to a wall so as to extend horizontally and in closely spaced relationship to the floor. The panel has integrally formed channels for slidably receiving projecting flanges provided for this purpose on longitudinally spaced support brackets located intermediate the end portions of the elongated heating element, or on utility boxes provided at either end of the elongated heating element. Each bracket is slotted to receive the elongated heating element intermediate the end portions of said element. The back panel defines a conduit channel which communicates with the utility boxes. Two versions of a front panel or enclosure are described, one of which provides for a top grille portion to be integrally formed with the front panel, and the other has a separate top grille portion connected to one or more of the underlying support brackets and to a rearwardly projecting flange on the front panel itself.