Abstract: Conventional methods for mounting electro-optical components, such as photodiodes, to the surface of a printed circuit board include the use of labor intensive brackets and fastening devices, such as screws or adhesive. The present invention provides a relatively small and simple component holder, which is easily attached to a circuit board by inserting the lower portion of the holder through a “key-hole” slot in the circuit board and rotating the upper portion, thereby squeezing the circuit board between the upper and lower portions. The component holder according to the present invention enables the electro-optical component to be mounted flush with the upper surface of the circuit board. Moreover, flexible locking elements enable the component holder to be mounted onto circuit boards of various thicknesses.

Abstract: Conventional methods for mounting electro-optical components, such as photodiodes, to the surface of a printed circuit board include the use of labor intensive brackets and fastening devices, such as screws or adhesive. The present invention provides a relatively small and simple component holder, which is easily attached to a circuit board by inserting the lower portion of the holder through a “key-hole” slot in the circuit board and rotating the upper portion, thereby squeezing the circuit board between the upper and lower portions. The component holder according to the present invention enables the electro-optical component to be mounted flush with the upper surface of the circuit board. Moreover, flexible locking elements enable the component holder to be mounted onto circuit boards of various thicknesses.

Abstract: A web feeding and handling system for feeding a two-ply web to a printer and winding one of the webs about a take-up spool and directing the remaining web into a cutter. The printer and web feed system are arranged in a housing having an access opening sealed by a door. The printer and a feed roller holder assembly are mounted upon a plate movable between a position enhancing access to the printer and supply roll holder to facilitate supply roll replacement and feeding the web into the printer, and a position placing the printer web output end closer boa cutter and a take-up assembly mounted upon the door and including a rotatable drive disk and a spindle support which support a removable spindle to wind up one web. A motor drive mounted within the housing engages the drive disk when the door is closed and is disengaged from the disk when the door is open. The supply roll holder receives and automatically aligns the web to prevent skewing.