Abstract: An ink supply system is used with a printer of the type in which ink is deposited in an engraved receiving region on a cliché plate and is scraped from the plate leaving ink in the receiving region. The ink supply system includes an ink cup having a hollow interior defining an ink reservoir and defining an outer edge. The outer edge has a doctor blade formed thereon for engaging and scraping the plate. The ink cup has an inlet and an outlet. A pump has a suction side and a discharge side with the suction side in flow communication with the cup outlet for drawing ink from the cup. A viscosity controller is in flow communication with the pump discharge and receives ink from the pump. A flow conduit extends between the viscosity controller and the ink cup for providing a flow of ink from the viscosity controller to the ink cup.

Abstract: A difficult-to-duplicate key for operating a rotatable plug and cylinder lock has an imaginary center axis that extends along the length of the key at a location situated between opposed, relatively narrow edge surfaces, and centered between opposed, relatively wide side surfaces. The edge and side surfaces cooperate to define a key of generally rectangular cross section. First, second and third rows of concave recesses are formed in and extend lengthwise along the side and edge surfaces of the key for receiving rounded inner end regions of pin tumblers of the plug and cylinder lock when the key is inserted to an operating position in a keyway of the lock for positioning the tumblers to permit the plug to be rotated relative to the cylinder. The recesses of the first, second and third rows extend along first, second and third sets of recess axes that extend in first, second and third planes, respectively, that radiate from the imaginary center axis.

Abstract: A key operated rotatable plug and cylinder define pin-receiving holes arranged in first, second and third rows that extend in first, second and third planes, respectively that radiate from a common center axis that extends substantially centrally through a plug-defined keyway. A key of generally rectangular cross-section is insertable into the keyway to bring recesses that are formed in its two relatively flat side surfaces and in one of its narrow edge surfaces into alignment with the pin-receiving holes so that inner ends of tumbler pins that are carried within the holes are received in the key-defined recesses to position the tumbler pins to permit plug rotation relative to the cylinder. The first plane extends from the center axis through the holes of the first row, and parallels the opposed, relatively flat side surfaces of a keyway-inserted key.

Abstract: A subsidiary bench top apparatus for a work bench or the like comprises a standing section secured to laterally extended brackets at opposing distal ends, four support members joined respectively to the brackets at one end and connected in pairs at the opposing distal end by medially disposed bolt and nut assemblies for fastening onto a work bench with lateral variation of the standing section respective of the work bench.

Abstract: A stand for supporting bags including a base, a flexible stanchion, and a bag-engaging collar which is generally C-shaped and capable of being pinched together for insertion into a bag to be supported, loading of such a bag progressively bending the stanchion, the collar, stanchion and base maintaining such a bag in column to prevent spillage and to allow easy removal of the collar upon springback of the stanchion when the collar is again pinched together.

Abstract: An adjustable scaffold having a generally rectangular frame including a pair of clamp sections associated with one side of the frame and a first step section associated with the other side of the frame, pairs of legs pivotly mounted to the frame and said generally rectangular platform having vertically downwardly extending support arms complementary to the clamp sections to support the platform in an offset position closer to one side of the frame than the other, the platform being removable from the clamp sections and storable between the clamp sections and the first step section.

Abstract: An actuating structure is provided for a switch lock having a barrel with a plug which is key actuated for rotation therein. An actuator interconnects the rotatable plug with a rotatable shaft of the switch and cooperates with a rotatable stop plate connected to a return spring. Specifically, an actuator lug and a stop plate surface which engage upon rotation of the plug in one direction to turn the switch momentarily from the first position to a second position against the action of the spring. The actuator also rotates in the opposite direction independently of the stop plate to turn the switch from the first to a third position.