Abstract: A register-pin-locating device used in conjunction with a steel ruler and a T-square to allow a stepping-and-repeating operation to any increment at any angle of an image in the art of photocomposing and like applications, a locator being mounted to a straight edge having marked units of measure so that register pins can be located at selective positions to receive negative or positive film in an accurate step-and-repeat manner on a suitable line-up table. The locator comprises a substantially flat thin plate having a longitudinal bend formed therein to define a pair of half sections horizontally offset from each other, wherein a pair of juxtaposed slots are disposed transversely to the bend, the slots being identically located in each of the half sections, so that the register pin can be received in either half section after the locator is secured to the straight edge.

Abstract: It is common that communications such as telephone calls between calling and called lines be made by sharing a single communications path on a time division basis. Each call is assigned to a shared path for a short time interval, also called a time slot. It is known to interchange an input time slot to a different output time slot. Unfortunately, known time slot interchange arrangements insert an input sample in a single output time slot. The instant time slot interchanger extends an input sample onto a plurality of output time slots for broadcasting a sample through a plurality of locations. Also, the instant time slot interchanger may selectively insert an alternate message, e.g., an error message, in an output time slot.