Abstract: An apparatus for removing lightweight debris from a debris-contaminated stream of heavier material. The apparatus includes an enclosed chamber having a material inlet, a chute having a free portion through which the stream can freely fall due to gravity, and a material outlet positioned below the chute. A material stream flows into the chamber via the inlet and then a portion of the stream falls through the free portion and exits the chamber via the outlet. An airflow pathway guides airflows into the chamber via an airflow inlet and out of the chamber via an airflow outlet. An airflow flowing through the airflow pathway that separates a first portion of the debris-contaminated stream from a heavier portion of the debris-contaminated stream. The airflow then carries the first portion out of the chamber via the airflow outlet.

Abstract: A synchronous multiple access interconnect system includes a bus and a plurality of master units each having a six state sequencer coupled to a plurality of serially connected AND gates, the bus and logic to provide signal settling time, generate handshake signals, receive handshake signals, transfer data, resolve contention for the bus between several requesting units and pass control of the bus in an orderly manner from one unit to another. Three signal lines of the bus pass control of the bus from one unit to another.

Abstract: Data is configured in 8 bit control characters and 8 bit data characters and stored in a terminal random access memory as a linked list structure. Control apparatus accesses the data stored in the terminal memory in 16 character blocks and identifies the accessed information as representing figures to be displayed, video enhancement features, or program execution path changes. Each two character link provides an address pointer to the next 16 character block of data and control information. The first character block of a line of displayable figures has links to the previous displayable line and the next line of characters to be displayed.The control apparatus combines internal hardware functions and the linked list encoding structure as implemented by program logic to provide display and control character identification, data access address modification, video display enhancement and selection of alternate character sets.