Abstract: A currency validator for testing both the magnetic and electrically conductive properties of a currency note in which core legs of magnetic and conductive material form spaced first and second gaps. Windings carried by the legs produce signals indicative of the magnetic property of a note moving across the first gap. A detector connected across the second gap indicates the presence of conductive material bridging the first gap.

Abstract: A swivel bending machine (10) for a metal sheet (4) in which a first driving unit (12) is adapted to move upper (2) and lower (1) jaws relative to each other to clamp the metal sheet (4) therebetween with a section (5) of the metal sheet protruding beyond the first and second jaws and in which a bending jaw (3) having two endfaces is mounted on the machine frame for rotation around a stationary swivel axis (S) is driven by a second driving unit to engage the protruding section (5) of the metal sheet (4) to bend the section (5) upon rotation of the metal sheet and wherein at each of the two endfaces of the bending jaw (3) a first supporting element in the form of a swing arm (14) for the bending jaw (3) is provided between said bending jaw (3) and the machine frame (11), said swing arm (14) being adapted to be swivelled about said swivel axis (S) of the bending jaw (3) by said second driving unit (13), a second supporting element (16) for the bending jaw (3) is mounted movably on said swing arm (14) and being

Abstract: A method for removing filter cake from a pressure filter element for liquid solid mixtures comprising an outer casing, a removable lid for closing the outer casing, a tubular filter element which projects from the lid into the outer casing and on the outside of which the filter cake is deposited, a membrane which during operation folds back between the outer casing and the filter element, a pressure joint on the outer casing and inlet and outlet of a pressure medium, an inlet line which conveys the liquid-solid mixture into the space between the membrane and the filter element and an outlet line which conveys the filtrate from the interior of the filter element. In order to split off small pieces of the filter cake from the filter element, a gaseous pressure medium is admitted into the filter cake formed on the outside of the filter element for as long as the filter cake is still completely or partly surrounded by the fold back membrane.

Abstract: A pressure filter for suspensions comprises a boiler shaped outer shell (1) the front side of which is closed by a detachable lid (11), a tubular filter element (15) which projects from the lid, a membrane (5) which can be inverted arranged coaxially between the outer shell and the filter element, and a suction and pressure joint (6) arranged on the outer shell. A device for operating the filter comprises a container (25) for a hydraulic fluid (26) which fills the lower part of the container, a gas space (27) to being located above the level of the hydraulic fluid. A first line (21) with a force pump (24) conveys the hydraulic fluid from the lower part of the container to the space between the outer shell and the membrane. A second line (28) connects the space between the outer shell and the membrane with the gas space in the container and communicates with a suction pump (33).

Abstract: A folding machine in which a metal sheet is clamped between an upper and lower clamp, and the section of sheet extending out beyond the clamps is bent through a given angle by a bending cheek. During the rotating motion of the bending cheek, the bending cheek moves into an initial position perpendicular to the axis of rotation. This steers the bending cheek along a given bending contour.

Abstract: A method of recovering leaded glass from leaded glass articles such as cathode ray tubes having evaporated aluminum thereon and coatings of phosphors and sodium silicate-containing material, as well as plastic labels and adhesives and other organic films in which the articles are broken into pieces and tumbled in a diphase solution, one phase of which is a solution of an alkaline earth in water and the other phase of which is an organic solvent for a period of time sufficient to remove all coatings and materials from the glass pieces which are then ready for melting and formation of new articles.

Abstract: A dual visor operating mechanism in which respective locks disposed between inner and outer visor arm hubs and respective right and left arbors normally prevent movement of the visors in response to force applied directly thereto and in which respective inner and outer visor actuators sequentially release their associated brakes and then move the visors therewith. Brakes prevent movement of the visors after release of the associated lock and before the corresponding visor moves with the actuator.

Abstract: Apparatus for detachably securing a night vision goggle mount to a protective helmet visor housing in which the heads of a pair of upper fasteners carried by the mount are adapted to be inserted through the head receiving portions of a pair of upper keyhole slots in a base plate on the housing against the action of a leaf spring on the plate. When the shanks of the fasteners are moved into the lower head-retaining portions of the upper slots, the upper fastener heads are held by ears on the leaf spring to lock the mount. A releasing element on the base plate is adapted to be actuated to flex the spring to a position at which the spring ears are clear of the upper fastener heads to permit the mount to be removed. Preferably, a pair of lower fasteners having heads and a pair of corresponding lower keyhole slots are provided to insure stability and alignment of the night vision goggle mount.

Abstract: A cold meat slicing machine having a circular cutter blade, an adjustable stop plate, a carriage for the product to be cut preferably driven by a motor, an automatic feed for the product to be cut, a first adjustment for adjusting the stop plate in response to a desired thickness of cut (slice thickness) and a second adjustment coupled with the first adjustment for adjusting the feed increment of the product to be cut on the carriage in response to a desired thickness of cut (slice thickness). The first adjustment for the stop plate comprises a first guideway and the adjustment for the feeding of the product to be cut comprises a second guideway rotationally fixed relative to the first guideway.

Abstract: An improved walker in which a gate which is pivoted on one rear leg for movement from an open position to a closed position at which it engages a fitting carried by the other rear leg, supports a seat for pivotal movement from a raised inoperative position to a lowered operative position. An element operative in the lowered position of the seat prevents the gate from moving to an open position. Interengageable elements operative in the open position of the gate prevent the seat from being lowered.

Abstract: A device for the removal of tubular fabric from a circular knitting machine comprises a machine frame, a driven take-up roller around which the tubular fabric is partially wound, a winding rod for winding the tubular fabric and two bearings at the ends of the winding rod. The bearings of the winding rod are arranged in levers which are pivotally mounted on the machine frame for pivoting from an operating position to a removal position. In the operating position, the winding rod can be locked in position by wedge-shaped locking elements. In the removal position, the winding rod can be removed from the machine frame simply and easily.

Abstract: A bill box assembly for use with an acceptor adapted to insert acceptable bills into the box through an opening in the box body which supports a door for movement between an open position at which bills can be inserted and a closed position over the opening. A spring loaded bolt locks the box onto the acceptor. A lever is biased to cause a hook on one end thereof to enter an opening in the door in the closed position thereof to lock the door while the other end of the lever releases the bolt. A key-operated lock is adapted to move the lever out of its door locking position. The box is molded in two parts which are assembled with the belt in position.

Abstract: An integrated field eyewear system of modular construction to permit adaptation to a wide range of wearers and operating conditions. A bridge includes a brow bar formed with slots for alternatively receiving left and right plano lenses or lens frames formed with openings for receiving snap-in corrective lenses. The plano lenses and lens frames are in turn formed with sockets for alternatively receiving either temples or anchors for receiving a headband. Sunshade or laser-protective secondary lenses may be snapped into place over the primary lenses to afford necessary protection. The front consisting of the bridge and the selected viewing elements may be fitted together with a removable goggle frame between the front and the wearer's face. To facilitate their use with lens frames of fixed dimensions, the corrective lenses are formed with bevels conforming to the surface of a sphere of constant radius, even for lenses of different front curvatures.

Abstract: An automatic endorser adapted selectively to apply an endorsement at different locations along the back of a check moving along a path extending between the endorser unit and the platen in a direction generally transverse to the check length. A select lever is adapted to be moved laterally of the check path to move the endorser to a position corresponding to a selected endorsement location. Visible means is provided for locking the select lever and endorser unit in position.

Abstract: In a bending machine especially for joining the edges of metal sheets by folding, the machine having a frame which provides supporting surfaces for the components to be folded and carrying a folding device consisting of several pairs of folding rollers (32) on a carriage (25) which can be moved along a guide (24) in the machine frame (1) by means of a drive device, the frame (1) being U-shaped with the supporting surfaces at the upper ends of the arms of the U forming an angle of 90.degree. therebetween and with one of the surfaces extending generally in the vertical direction and the carriage arranged on the yoke (2) of the U with a pivot arm (22) mounted on the machine frame for movement around an axis parallel to the direction of carriage movement to a lockable operative position at whcih a strip rail (21) on the arm extending parallel to said axis is spaced below the lower end of the one supporting surface extending generally in the vertical direction.

Abstract: Plate shears for flat workpieces, especially sheet metal, comprise a fixed lower blade (4), an upper blade (6) secured to a vertically movable blade beam (8), a cutting bench (2) arranged in front of the blades, a swivel roller bench (11) comprising several parallel rows of rollers (12) arranged behind the blades, the swivel-roller bench can be swivelled about an axis (D) substantially parallel to the cutting region of the blades and can also be moved back and forth in relation to the blades, and an adjustable stop (3) arranged behind the blades for workpieces to be cut to a given width. Swivelling of the swivel-roller bench downwardly simultaneously lowers the front of the swivel-roller bench which is closer to the lower blade.

Abstract: A print scanner for detecting defects in the label of a compact disc or the like supported on a carrier moved through a label printing station into a substantially light-tight housing in which the disc is illuminated with diffuse light through a mask so that a video camera in the housing sees only the label area. A reference image derived from a multiplicity of video frames and a sample image derived from a plurality of video frames are subtracted each from the other, two histograms are computed from the subtraction results and respective figures of merit for missing ink and added ink are calculated from the histograms.