Abstract: A fixed blade utility knife has a housing provided by a lower handle portion, an upper lever portion, and a nosepiece at one end thereof which seats one end of the handle and lever. The lever is pivotably supported on the nosepiece, and a blade holder in the nosepiece is pivotably supported on the handle. The blade is seated in the holder and extends outwardly of the nosepiece, and a blade guard of generally U-shaped cross section extends about the cutting edge and is slidable in the nosepiece to extend outwardly to sheathe the cutting edge and to be withdrawn into the nosepiece to expose the cutting edge. A manipulatable element slidably seated in the nosepiece is engaged with the blade guard to effect its sliding movement. Pivoting of the lever into an open position releases the blade from engagement in the holder so that it may be easily replaced.

Abstract: An emergency lighting system has emergency light units operable by DC power and connected to a source of AC and DC power by the same conduit system. Power to the conduit system may be switched from AC to DC in the event of a power failure and a load relay module in the conduit system adjacent the light units senses the change to DC current and switches from an Ac load output to a DC load output to supply DC power to the emergency light units. The system will generally include both exit signs operable by both AC and DC power and emergency light units operable only by DC power.

Abstract: A machining tool beveling the edges of workpieces such as sheet metal is movable relative to the workpiece in the feed direction along the edge of the workpiece and in an action direction perpendicular to the feed direction. It has at least two adjacent cutting edges extending in the feed direction, one of which is the leading edge and the other of which is the trailing edge which is offset from the leading edge. The trailing cutting edge will effect a further cut in the workpiece as the tool is moved along the edge of the workpiece and reciprocated against its edge portion.

Abstract: An synthetic resin frame for displaying a rectangular element has an arcuately contoured portion and a cross section providing an outer peripheral wall, an intermediate body portion and an inner peripheral wall extending substantially parallel to the outer peripheral wall and circumscribing an enclosure with an arcuately contoured peripheral portion. The base surface of the inner peripheral wall is disposed in a first plane spaced above a second plane defined by the base surface of the outer peripheral wall, and ribs on the body portion are spaced about the periphery of the frame with their base surfaces disposed in a third plane intermediate the first and second planes. These ribs define a rectangular enclosure spaced outwardly of the arcuately contoured enclosure and in which the rectangular element is seated.

Abstract: As part of a process for bending workpieces (14), when the workpiece (14) is released from the upper die (8) and/or the lower die (10), the actual size of the bending angle (.beta.) is continually determined; from the actual size of the bending angle (.beta.) found, the change in it is determined and, as soon as the change in the actual size of the bending angle (.beta.) assumes a predetermined value, the actual size of the then existing bending angle (.beta.) is compared with the desired size.On a tooling machine for carrying out the method described, there are scanning elements (17,18) and a device (24) for determining the actual size of the bending angle (.beta.) that are parts of a device (19) for determining the change in the actual size of the bending angle (.beta.). The device (24) for determining the actual size of the bending angle (.beta.) is connected to a comparison device (32) for comparing the actual size of the bending angle (.beta.) to the desired size.

Abstract: A bait dispenser for a fishing boat has a bin for holding bait with an aperture at its bottom and an opening at its top. Pulleys are provided on the exterior surface of the bin adjacent the bottom aperture and top opening, and a belt extends about the pulleys and passes through the bottom aperture and upwardly through the bin and outwardly of the top opening. A paddle extends perpendicularly to the belt and collects bait on its upper surface as it passes upwardly through the bin. A bottom flap on the bin seals the bottom aperture and is resiliently deflectable for passage of the paddle upwardly into the bin.

Abstract: A metal door has a unitary rectangular frame of generally uniform cross section providing stiles and rails, and a pair of substantially rectangular panels which are secured to the frame. The panels have opposed flanges overlying and engaged with the adjacent side margins of the stiles of the frame to secure the panels thereto. The door is fabricated by forming an elongate metal strip into a frame element of generally uniform cross section with channels between a generally planar central portion and inwardly offset marginal portions. A predetermined length of the strip is bent to form a substantially rectangular frame, the ends of which are fastened together. The panels have lips on their flanges and are assembled to the frame with the flanges inserted into the channels and the lips frictionally engaging the side walls thereof.

Abstract: 110-type wiring blocks are modularized with means for connecting a plurality of them to enable a manufacturer to produce a single size (e.g., 100 connector terminals) and yet meet all needs. Several 110 wiring block modules are locked together with U-shaped locking devices to provide a secure interlock that retains structural stability during wiring with IDC connectors and over long periods of use.

Abstract: A stand-off wire management bracket and system having a back panel, side walls extending from the back panel and attachment brackets pivotally connected to the side walls for pivotal attachment of one or more wire panels. The wire panel is connected across the attachment brackets which rotate about a common axis substantially parallel to the back panel, providing access to the rear portion of the wire panel without requiring disconnection of all connecting points, and without requiring excess clearance, or excess slack in cables. The side panels also include stops to limit the rotation of the attachment brackets and any wire panel attached thereto.

Abstract: A truck for separately storing and discharging recyclable materials includes a chassis, a cab, and a frame pivotably mounted on the chassis rearwardly of the cab and supporting a housing with a platform extending along one side to the cab. Partition walls in the housing divide the interior space into a multiplicity of compartments along the length of the housing and a side wall has openings providing access to the several compartments. The partition walls have gates which are held in closed position by locks which are remotely releasable. An upper compartment is provided on the housing and a chute extends upwardly from an opening in the side wall, and a deflectable closure for the opening permits insertion of recyclable materials thereinto. A diagonally extending door is provided on the rear end of the cab adjacent the platform and is slidable between a closed position closing the cab and an open position extending along the adjacent side wall to permit passage between the cab and the platform.

Abstract: A reclining chair has a seat and a chair back both tiltably carried on a base. The chair back is provided with lever means for tilting the seat as the chair back is tilted. The lever means contacts the seat at a point which moves in response to the tilting of the chair back. Advantageously, the seat includes a contact portion, adapted for engagement with the lever means, which is configured to provide a predetermined displacement of the seat in response to displacement of the chair back.

Abstract: A laser machine tool includes a laser beam generator (3) and a machining head (5), and the laser beam (2) passes between the laser beam generator (3) and the machining head (5) in a beam passage (25) that is at least partially closed. The beam passage (4) is filled with air with a limited CO.sub.2 content. In this way, the laser beam (2) in the beam passage is protected at low cost from the influence of gases that reduce its power, especially when the path of the beam is very long.

Abstract: A ball valve for controlling fluid flow comprises a housing with a chamber therein and a fluid flow passage therethrough having an inlet and outlet portion to and from the chamber adjacent the lower end of the housing, and generally annular recesses extending about the inlet and outlet ends of its inlet and outlet portions. An opening in the upper end of the housing communicates with the chamber and is sealed by a bonnet which is removably fastened to the housing and has a passage seating a stem which will rotate. A valve member is rotatably seated in the chamber. Body seats are removably seated in the annular recesses of the chamber about the inlet and outlet portions of the flow passage. Valve seats are removably seated in the body seats and have concave surfaces which seat the ball member and seal about the flow passage therethrough. The bonnet has a shoulder about the passage and the stem has a collar thereabout which bears upon a sealing member disposed therebetween.

Abstract: An adjustable hinge has a first leaf and an adjustable leaf mounting assembly which includes a second leaf, a bracket, a cam and an adjusting screw. The second leaf is mounted on the bracket and has one end extending beyond the bracket and pivotally engaged with the first leaf. The cam is rotatably mounted on the bracket and cooperates with a cam follower surface on the second leaf. The adjusting screw has a shank threadably engaged in the second leaf intermediate its ends and has its free end abutting the bracket. In operation, the rotation of the adjusting screw pivots the one end of the second leaf relative to the bracket and the rotation of the cam moves the second leaf vertically relative to the bracket.