Abstract: Air is drawn upwardly through a vertical air separation chamber with an open bottom. Material to be separated is introduced into the rising stream of air. Material having a smaller ballistic cross-section rises, while heavier material falls through the open bottom. The air stream is controlled to below about 1,500 feet per minute. The dispersion of the material is accomplished with a jet of air taken from a plenum connected to an air recirculation system. The air jet is introduced immediately below the material inlet to the chamber. The jet of air breaks up and disperses the material. An air recirculation system includes a fan which draws air out of the top of the air separation chamber by way of a hydrocyclone. The air extracted from the hydrocyclone is reintroduced at the bottom of the air separation chamber from a surrounding plenum.

Abstract: In a table tennis ball-sorting device, a plurality of rails are disposed side by side in substantially a horizontal direction along the side of at least one playing surface of a table tennis table at intervals that are capable of having passed therethrough only deformed balls, and a plurality of rails are disposed side by side in substantially a horizontal direction along the rear part of the playing surface at intervals that are capable of having passed therethrough only deformed balls. The former rails are disposed to be inclined towards downstream, while the downstream side thereof is overlapped on the upstream part of the latter rails so that balls can be transferred. A table tennis apparatus using the table tennis ball-sorting device is also disclosed.

Abstract: The invention refers to a procedure and an installation for the pure, according to sort, processing of recoverable material refuse, with a selection of heavy disruptive materials, with a crushing process for the remaining raw refuse, with segregating processes for recoverable materials from the crushed raw refuse up to a mixture of plastic chips and with separating processes for the extraction of pure, according to sort, plastics.

Abstract: A feed device for feeding a document folding and/or inserting machine with envelopes delivered by a general-purpose printer, said feed device comprising detection means for detecting the position of the envelope at the outlet of the printer and reorientation means for reorienting the envelope as a function of its position as determined by said detection means so as to enable documents to be inserted into the envelope. The detection means advantageously comprise a detector for detecting an edge of the envelope, and the reorientation means advantageously comprise a turntable.

Abstract: A programmed bar screen cleaner removes debris from a screen positioned in a channel to prevent the flow of the debris to a liquid treatment. A rake has tines for engaging the screen to move the debris toward and past an upper end of the screen to remove the debris from the screen. Automatic and controllable raking operations are provided to handle the situation in which there is debris jammed in the screen. The jammed debris resists the movement of the rake along the screen, which is sensed via rake motor overloaded, indicated by motor current in excess of a limit. The existence of a jammed rake causes positive release of the rake from the face of the bars, and further movement of the rake is controlled according to the nature of the problem which caused the jamming.

Abstract: The present invention relates to a screen cylinder for screening fiber suspensions of the wood processing industry. The screen cylinder comprises a rotationally symmetric screen surface located on the side of the pulp to be screened, and support rings supporting the screen surface on the opposite side; the screen surface mainly comprising grooves and screen apertures in connection with the grooves, the grooves being comprised of a side surface on the upstream side, a bottom surface, and a side surface on the downstream side, characterized in that the bottom surface of the groove rises towards the side surface of the upstream side.

Abstract: Coded articles are conveyed through an orienting section which tends to arrange the articles in single-file, spaced apart relationship. The articles are then conveyed through a reader/sensor mechanism where the codes are read and the spatial relationship of the packages is determined. Articles which are both properly scanned and properly spaced are conveyed to respective branch lines of a sorter section in accordance with information gleaned from the codes. Articles which are improperly scanned or improperly spaced are diverted to a recycle conveyor by a recycle diverter device located upstream of the sorter section and are re-routed back to the orienting section.

Abstract: A letter sorting apparatus which can perform the sorting for each letter carrier and a delivery sequence organization sorting work in accordance with bar codes. The apparatus includes a first accumulating arrangement provided above and adjacent to a supplying section and having a letter returning mechanism, and second accumulating arrangement of a fixed type provided above and adjacent to the first accumulating means. The sorting for each letter carrier by use of the first accumulating arrangement and the second accumulating arrangement is effected. Further, the delivery sequence sorting can be performed in such a manner that letters accumulated in the first accumulating arrangement are returned to the supplying section to repeat the sorting.

Abstract: An apparatus is disclosed for automatically testing electronic memory modules. The electronic memory modules are automatically positioned, one at a time, in a test station position for registration with test contacts of a test connector assembly. The test connector assembly includes a mounting fixture which secures the test contacts, such that first ends of the test contacts are appropriately aligned for registering with surface contacts of the electronic memory modules. Second, opposite ends of the test contacts are mounted to a transition board. The transition board has first and second opposite edges, with the first edge having surface contacts which are closely spaced for registering with the test contacts, and the second edge having surface contacts which are more widely spaced than those on the first edge for registering with connector contacts of a tester module. Conductive traces extend between the surface contacts of the first and second edges of the transition board.

Abstract: A sortation and sequencing system for sorting a plurality of different items into discrete orders and putting the items into a predetermined sequence within each discrete order or group of orders. The system includes an induction station for accepting items in random succession, and a sensor at the induction station for sensing an identifying characteristic unique to each item and for generating tracking signals uniquely corresponding to the items for tracking the items through the system. A controller receives the tracking signals and generates sort command and sequence command signals which are in part responsive to the tracking signals. A sorter receives the items from the induction station and directs individual items to selected ones of a plurality of sort locations, each sort location corresponding to an individual order or group of orders, in response to sort command signals from the controller.

Abstract: In a sheet ejection and stacking system, such as for a document handler output, in which an upper sheet feeding and ejection unit with a sheet ejection path is repositionable between an open and a closed position relative to a lower sheet stacking unit which is providing a sheet stacking tray for the ejected sheets, here a platen cover unit. The sheet stacking tray has an automatically adjusting sheet stacking registration edge wall defining system which is automatically maintained closely adjacent to the sheet ejection position of the upper unit. This system is defined by upstanding stack retaining wall members movably mounted to the sheet stacking tray and a plurality of aligning post members integral the upper unit which automatically engage and move the stack retaining members into alignment with the upper unit, into a proper sheet receiving position therewith, when the upper unit is closed.