Abstract: A metallic shell used, for example as a mold, is formed by spray deposition of metallic layers over non-metallic layers as, for example, a reinforcing fabric.

Abstract: A spray deposition method of making a metal mold is disclosed. The method includes spraying alternating lower and higher density layers of metallic material to form a mold.

Abstract: A method for fabricating a mold by providing a matrix having a shape to be molded, and spraying molten metal from a spray gun. The spray gun is moved so that the spray gun makes successive passes over the surface of the matrix in a movement direction, shifts in a step direction transverse to the movement direction between passes and turns between passes so that during at least some successive passes metal is deposited from two spray directions in a crisscross pattern. Metal is deposited on the matrix, forming a shell which is removed from the matrix and used as a mold.

Abstract: An adaptable frame, for mounting of equipments, keyboards, displays, accessories, printed material, and other paraphernalia is disclosed. The frame contains supports having uprights and braces to which are connected crossbars. Either brackets or a shelf for holding equipment and material may be mounted on each crossbar to suit the needs of the user. The frame can easily and rapidly disassembled and assembled without tools. It disassembles into a few parts, i.e. two uprights, two braces, the crossbars with attached brackets, and shelves, for ease of transportation, handling and storage. The shelves are longitudinally hinged so that they may be folded for greater ease in handling when the frame is disassembled. The number and positioning of crossbars, brackets and shelves can be varied to meet the needs of the user. A compartmentalized carrying bag may be supplied for ease of storage and transportation.

Abstract: An adjustable keyboard stand adapted to simultaneously support more than one keyboard in front of a musician and allow for immediate access to all of the supported keyboards. The tubular construction of the keyboard stand, which completely disassembles for easy transportation and storage, includes two side supports with at least one cross spar supported therebetween by a pair of cooperatively acting clamping means mounted on the side supports. The configuration of the pair of cooperatively acting clamping means, which support the cross spar in front of the plane formed by the front of the side supports, allows the distance between the side supports to be varied, while also allowing for easy positioning, installation and removal of additional cross spars without having to disassemble the stand.