Abstract: A proofing cabinet for treatment of dough preparatory to baking in which an upright cabinet having a swingable front door has support brackets on the inside for receiving trays of dough while in the bottom of the cabinet there is detachably inserted an assembly consisting of a lower portion which contains an electrically heated tray for receiving water thereby to supply water vapor to the interior of the cabinet while upstanding from the rear end of the assembly is an electric heater contained within a vertical flue chamber. The vertical flue chamber with the electric heater therein induces circulatory flow of air within the cabinet while maintaining the air at such temperature that condensation of water vapor inside the cabinet walls is inhibited.

Abstract: An end panel construction for modular units in which a pair of end panels adapted to be mounted on opposite ends of a mobile modular counter unit or on the opposed ends of adjacent mobile modular counter units are complementarily contoured with vertical convolutions so as to nest together when placed in face to face relation. The end panels are also formed with transversely extending tongues and grooves which interfit when the panels are in face to face engagement and lock the panels together in vertical registration. The convolutions on the panels extend vertically thereon and in laterally spaced relation so that the two panels will nest together in a plurality of laterally adjusted positions while the tongues and grooves thereon will lock the panels together in all of the said adjusted positions.

Abstract: A packaging device for closing packages, especially food packages, and which is adapted for selective adjustment from a first condition for packaging cold food and a second condition for packaging hot food.

Abstract: A self adjusting elevator, especially for use in a storage cabinet, or the like, which has a recess in which the elevator is horizontally disposed and within which the elevator is vertically moveable in conformity with the weight carried thereby. The elevator according to the present invention has a spring device incorporated therein which maintains tension on cables which support the elevator. As the elevator is unloaded, by removing articles therefrom, the elevator rises in the recess of the storage compartment thereby maintaining the articles thereon within easy reach. The elevator according to the present invention is particularly characterized in an improved arrangement for adjusting the spring device carried by the elevator thereby to modify the tension exerted on the aforementioned cables by the spring device.