Abstract: The invention relates to a method of removing metals from metal-charged waste sludges from industry, clarification plants, or the like, in which the sludges are treated with a solvent for the metals, the resulting solution is separated from the undissolved substances and worked up to yield the metals, and the remaining solids are dumped as safe waste materials or used as fertilizers. The invention also relates to an apparatus for carrying out this working-up method, characterized by a mixing apparatus for mixing the solvent and the sludge which is to be treated, a residence zone, an adjoining apparatus for separating the metal-charged solvent from the insoluble fraction, and optionally an apparatus for drying the insoluble fraction. Metal sludges can be continuously worked up, if desired, in the apparatus according to the invention.

Abstract: A printer having first and second opposed sprockets positioned on opposed sides of a printer platen for feeding from an upstream to a downstream direction continuous-feed paper sheets having continuous-feed edge strips formed along the opposing sides of the paper sheets. A edge strip trimming apparatus is provided in combination with the printer. The edge strip trimming apparatus includes first and second edge strip trimmers. Each of the edge strip trimmers have edge strip hold-down devices positioned in closely spaced-apart relation to one of the first and second sprockets for holding the edge strip against the sprocket as the paper is fed through the printer. An inclined paper support bed extends inwardly from the edge strip hold down device to a point underneath the horizontal plane of the paper sheet for progressively diverging the plane of the edge strip from the plane of the paper sheet as the paper sheets are successively fed through the printer. The support bed defines an edge surface.

Abstract: The invention concerns a planing device for planing down road surfaces, having a roller-type, rotatably supported planing body designed in the form of a conveyor worm 3, the planing body having a multiplicity of planing tools which are arranged in releasable retention boxes 1 which are in turn bolted by means of their shank parts 4 in radial recesses 2, open at the side, it being possible to fasten at least one retention block 8 at least partially covering the shank part 4 by bolts 9 penetrating through the conveyor worm 3 in order to retain the shank part 4 of the retention box 1 in the side opening 2.In order to change the retention boxes, it is then only necessary to loosen the fastening bolts 9 of the retention block 8.

Abstract: A method of forming a pile comprises driving a pile forming member (12, 40, 140) into the ground to a predetermined depth to form a passage of non-circular cross-section, preferably a circular cross-section (42) with fins (56) radiating therefrom, and while withdrawing the member (12, 40, 140) from the passage filling the passage with cementitious material so that then this material sets a pile if formed in the passage.

Abstract: An expansion joint for joining first and second adjacent segments of direct glue down carpet mounted on respective underlying adjacent first and second floor segments. A first subchannel is mounted in the first floor segment along a joint line of the adjacent first and second carpet segments and a second subchannel is mounted in the second floor segment along the joint line of the adjacent first and second carpet segments in parallel relative moveable relation to the first subchannel. A first cover supports the first of the carpet segments on the first subchannel and a second cover supports the other of the adjacent carpet segments on the second subchannel.

Abstract: The invention is concerned with a method and apparatus for producing a shaped filamentary structure and more particularly, to filamentary structures which can be subjected to further processing to produce a carbon-carbon product. A specific use of the invention is in the production of discs for use in aircraft braking systems.The method includes needle punching a unidirectional layer of filaments to give a degree of dimensional stability; cutting a plurality of segments from the layer of needle punched filamentary material; assembling a plurality of segments in side-by-side contiguous relationship to produce a filamentary layer of the required structural shape; superimposing at least one similar layer on the first layer and needle punching the assembled layers to produce cross-linking of the layers.

Abstract: A scaffold for an A-frame ladder, including a platform for being positioned between two legs of the ladder, supported on a bottom side of the platform intermediate two opposing ends thereof by a rung of the ladder and extending outwardly from opposite sides of the ladder. The scaffold includes a first strut pivotally attached to the bottom side of the platform adjacent one end thereof and extending diagonally downward for engagement with a rung of the ladder below the rung supporting the bottom side of the platform, and a second strut pivotally attached to the bottom side of the platform adjacent the other end and extending diagonally downward for engagement with the rung of the ladder with which the first strut is engaged.

Abstract: A cassette loader for loading a length of magnetic tape into cassette having a relatively short length of leader tape pre-loaded into the cassette and attached by opposite ends to respective first and second cassette hubs. The cassette loader includes a leader equalization position for holding a cassette; a leader equalizer for winding the leader tape substantially completely onto one or the other of the first and second cassette hubs while the cassette is in the leader equalization position and a cassette loading position spaced-apart from the leader equalization position for loading a length of magnetic tape into a cassette which has previously been processed in the leader equalization position. A cassette loading position is provided for loading a length of magnetic tape into the cassette at the cassette loading position simultaneously with the operation of the leader equalizer on the cassette in the leader equalization position.

Abstract: A cassette loader for loading a length of magnetic tape into a cassette having opposing major sides, and opposing top, bottom and first and second opposing side edges, respective first and second through capstan access holes. Positioners are used for referencing the position of the cassette at a processing station during processing. The positioners are carried by the cassette loader for engaging the bottom and the top of the cassette and for engaging the top of the cassette. One of the first or second positioners includes a place bar for urging the other positioner against the cassette under pressure and for ejecting the cassette when winding is complete.

Abstract: A track fastener apparatus for use with a locking track of the type used to secure a seat or cargo apparatus to the floor of an aircraft. The track includes a slot, and the upper walls of the slot have regularly spaced-apart enlarged openings separated by relatively narrower track slot segments defining locking segments. The track also includes a channel for carrying wiring along the length of the aircraft. The track fastener apparatus includes a housing. A screw member cooperates with the track fastener housing and the locking wedge to perform first and second functions in distinct first and second locking wedge positions. In the case of the first position the locking wedge is not completely positioned in alignment with and into the one enlarged opening, preventing the locking wedge from being tightened into the track. In the case of the second position the locking wedge is positioned in alignment with and into the enlarged opening, permitting the locking wedge to be tightened into the track.

Abstract: The present invention relates to a method and a kit for verifying the source and completeness of urine samples when collected for testing for the presence of drugs of abuse. The method involves observing an individual consume (1) a quantity of a first chemical marker reagent capable of confirming upon chemical analysis the completeness of the urine sample and (2) a quantity of a second chemical marker reagent capable of confirming upon analysis the accuracy of the source of the urine sample. The urine subsequently collected is analyzed by known analytical techniques.

Abstract: A pneumatic cleaner for textile machinery adapted to travel along the length of endwise-aligned machines in which yarn spindles have whirl-cleaner blades to strip the turns of yarn from the whirl. The cleaner has exhaust tubes having at least one exhaust port for blowing cleaning air into the machinery. One of the exhaust tubes has a retractable and extendible nozzle to direct the cleaning air against each whirl-cleaner blade and to displace said blade end into engagement with the whirl of each spindle as the cleaner passes the spindle. The nozzle is extended into close proximity to each whirl-cleaner blade by the flow of cleaning air and is retracted from said whirl-cleaner blade when flow of cleaning air is stopped. The flow of cleaning air is controlled with the travel of the cleaner, so that the nozzle is retracted to avoid interfering with other parts of the machinery when it is not needed to actuate the blades.

Abstract: A raceway for a power chain for a carriage adapted to traverse an apparatus on a preset path. The power chain carries conduits for supplying power or control fluids to the carriage. The raceway allows movement of the power chain along the length of the apparatus but prevents lateral and upward displacement of the chain out of the raceway.

Abstract: A paint brush storage bag assembly for storing a paint brush in a storage liquid between uses and holding the brush while in use. The assembly comprises a foil bag for receiving the bristles and the adjacent portion of the ferrule therein. The bag has a relatively flat bottom for supporting itself in an upright position and also has a pair of vertical pleats therein for permitting an upper edge of the bag to be closed around the ferrule of the brush. A paint brush is provided and includes a relatively wide elastic band positioned in a stretched condition around the ferrule of the brush. The elastic band is rollable onto itself to form a band of increased thickness to serve as a drip guard. The brush can also be suspended on the edge of the foil bag by the rolled-up elastic band. The elastic band is unrollable downwardly over the upper edge of the foil bag to secure the bristles of the brush in the bag and seal the contents of the bag therein.

Abstract: A track fastener apparatus for use with a locking track of the type used to secure a seat or cargo apparatus to the floor of a vehicle. The track includes a slot, and the upper walls of the slot have regularly spaced-apart enlarged openings separated by relatively narrower track slot segments defining locking segments. The track fastener apparatus includes a housing. The track fastener housing has a top side and a bottom side with first and second spaced-apart locking studs on the bottom side, the spacing of the locking studs being the same as the spacing of the spaced-apart enlarged openings in the track for being positioned into the enlarged openings. A locking wedge is extended through one enlarged opening in the slot when the locking studs are shifted along the length of the track to adjacent, relatively narrow locking segments, and tightened into the slot to prevent movement of the track fastener apparatus in the track.

Abstract: A seat-back tray table assembly attached to a vehicle passenger seat including a seat bottom, seat back and seat frame. The tray table assembly includes a tray table, a pair of elongate legs on which the tray table is mounted. The legs include first and second extensions projecting outwardly from the end of the pair of legs remote from the tray table and define respective stud-receiving recesses between the first and second extensions. A seat back pivot mounts the seat back on the seat frame for movement between a seating position with the seat back substantially upright and substantially perpendicular to the seat bottom and da break back position with the seat back forward and substantially parallel to the seat bottom. A tray table pivot is carried on the seat frame and include first and second pivot studs positioned on respective sides of the seat frame for being received in the stud receiving recesses of the tray table legs.

Abstract: An apparatus for drafting a continuous strand of staple fibers into a finer strand of the staple fibers and including a mechanism for supplying separated fibers suspended in a fluid and a rotating fiber chute receiving the fluid with the separated fibers axially and dispensing the fluid and the fibers radially. A collection belt with a porous portion is used for passing the fluid but holding back the fibers wherein the belt moves in a circular path around the chute and leaves the circular path to move the collected fibers thereon out of the circular path. A vacuum housing is positioned in close proximity to the collection belt and with an opening facing the collection belt for collection of the fluid.

Abstract: A seating cluster for airport and similar seating areas which includes a table for being positioned on a supporting surface, and eight seats attached to and supported by the table in spaced-apart relation to each other about the perimeter of the table in spaced-apart relation above the supporting surface thereby by defining a luggage storage area underneath the seat bottom. Each of the seats has a seat bottom having a front edge, opposed sides and a seat back. Each of the eight seats is attached to the table adjacent its respective inner side with the front of their respective seat bottoms positioned at an obtuse angle to the front of a seat bottom of a side adjacent seat whereby each seat and its respective side adjacent seat is angled slightly to each other to facilitate conversation by occupants.

Abstract: An invalid patient lifting and turning apparatus which includes an open framework for being positioned above a bed, an elevator supported by the open framework and a patient support straps for being positioned on a mattress of the bed underneath the patient and remaining underneath the patient at all times. The straps are removable and replaceable for extending laterally from side-to-side along the length of the patient for supporting the patient's head, trunk and legs. Connecting straps are provided for connecting the patient support straps and the elevator thereby permitting the patient support straps to lift the patient above the mattress surface for cleaning and bed-linen changing. A patient turning apparatus is provided for being connected to the elevator for turning the patient from side-to-side in the bed.