Abstract: A transformer unit for supporting, preferably, medical instruments, while furnishing them with particular levels of electric charge to accommodate their operations or recharging. a mounting member supports the transformer, and a series of modular like instrument supports, each having a base that holds an instrument, and an inclined concaved side upon which the instrument rests, are secured together intermediate a pair side walls and connected to the mounting member. Electrical circuitry provides for the conductance of electrical charge to the transformer, and a series of circuitries, one provided in each instrument support, conveys the transformed charge to each support. Secondary circuitry within each support also conducts the stepped-down voltage to each support base where wiring of a medical instrument may be connected to attain its operation, or where a self contained instrument may be recharged as during nonusage.

Abstract: In a bracket for an instrument, a swiveled yoke connects in a ball joint like coupling relationship to an extension that fastens to a support, and is useful for supporting an instrument in the category of a projector, or the like. The swivel socket provided to one end of the extension is separable, with a semicircular shoulder comprising part of an annulus provided in the upper portion of each socket half, and the socket having an extension spaced therebelow, and useful for securing the ball of the yoke therein for universal movement when the socket is assembled.