Abstract: A machine for soldering printed circuit boards and the like includes a housing enclosing an outer process chamber having a soldering station and fluxing station enclosed therein and an inner heating chamber, in combination with input and output transport conveyors on which the circuit boards enter and exit the housing. The heating chamber includes an elevator rack assembly which transports a succession of circuit boards vertically between the input and output conveyors while subjecting the circuit boards to controlled heating. The heating chamber may also be supplied with an inert or reducing gas to facilitate or eliminate fluxing requirements. The environment within the housing is maintained by air lock doors.

Abstract: A display device is disclosed herein for releasably holding graphic or other materials or articles including a U-shaped base adapted for supporting attachment to a tool box, table or the like and the base retaining a pair of material or article support rods having one end of each rod secured to the base. The pair of rods upwardly extend in diverging relationship and slidably support a spring biased clip on each rod for releasably retaining the materials or articles intended to be displayed.