Abstract: A utility knife comprising, in combination, a handle having a first handle portion and a second handle portion and coupling means to releasably join together the handle portions so as to be readily grasped by an operator during use, a central plane extending longitudinally through the handle and defining on opposite sides thereof a first blade-receiving chamber in the first handle portion for receiving a first blade holder and a second blade-receiving chamber in the second handle portion for receiving a second blade holder; and a first blade holder located in the first handle portion for supporting a first blade and a second blade holder located in the second handle portion for supporting a second blade, the blade holders being independently reciprocable in planes parallel with the central plane but on opposite sides thereof, each blade holder having an individual actuator extending to exterior of the handle whereby an operator may move either blade holder or both between a retracted inoperative orientation w

Abstract: A channel bag and a one piece spout sock and channel bag assembly for casting metal ingots. The channel bag includes diverter strips along upper portions of the sides and a diverter panel in the bottom of the channel bag positioned to be beneath a downspout during a casting process. The diverter strips and panel deflect poured molten metal and reduce turbulence during the casting process thereby reducing the formation of oxides and other impurities. In the one piece spout sock and channel bag assembly, the spout sock is utilized to receive and properly align a downspout. An ingot casting procedure utilizing the apparatus of the present invention reduces or eliminates the use of skimmers and ingot scalping.

Abstract: A fishing lure to simulate a dragonfly in a hovering orientation above a body of water is presented to effect luring of various game fish. The dragonfly member is defined by an elongate body mounting a plurality of cluster hooks at spaced intervals along the bottom surface thereof. The dragonfly structure may be mounted in a suspended orientation relative to the body of water utilizing a flotation device, or alternatively utilizing a drive motor and associated receiver and transmitter to effect hovering orientation of the lure. Further, the lure may be formed with a concave nose and a container within the body to effect selective tippage and repositioning of the body during its displacement through the body of water.

Abstract: An electrified table cloth for preventing crawling insects from gaining access to the consumer's food or drink comprises a cloth formed of electrically insulated material which has at least one pair of parallel electrically conductive strips secured to the edge or border of the cloth to completely encircle the cloth and which are connected to a low voltage DC battery also secured to the cloth. The strips of electrical conductive material are spaced apart sufficiently to normally prevent completion of a circuit across the strips and for completion of a circuit across said strips through an insert's body as the insect attempts to traverse the strips when crawling acorss the edge of the cloth. The current passing through the insect's body is sufficient to produce a sensation which will discourage further travel across the edge of the cloth.

Abstract: An immersion nozzle for containuous metal casting having an elongated nozzle body formed from a porous, gas permeable refractory material. The nozzle body has a conduit extending longitudinally therethrough and an inner surface which defines the conduit. The nozzle body also includes an outer surface defining a predetermined body profile and channels formed in the outer surface of the nozzle body. A metallic housing encases the nozzle body and has an inner surface dimensioned to substantially conform to the profile of the nozzle body. The housing is secured to the nozzle body by a refractory mortar which forms a rigid, relative air-tight layer between the housing and the nozzle body, wherein the channel means form internal passages in the nozzle. A port is provided on the housing in registry with the channels in the nozzle body. The port is connectable to a source of inert gas, which is operable to force the gas into the passages and into the porous refractory material.

Abstract: An improved door closer is provided which has a back checking arrangement including a loosely held resilient cushion bar which is engaged by a metallic shield abutting sliding cam plates during a final few degrees of opening of a door to provide an increasing resistance against further opening of the door. The shield preferably engages the cushion bar approximately 4.degree. prior to a normal full open position of the door. Selective thickness of the cushion bar provides either a 90.degree. full open position of the door or a 150.degree. full open position of the door without additional adjustment.

Abstract: A pinless hinge structure having two hinge members which are rotatable relative to each other through an angle greater than 180 degrees. The hinge members are rotatably joined along their adjacent longitudinal edges by mutually intermeshed gear segments which are maintained in rotatable association by a clamp member. Each hinge member is further configured with a leg segment extending outwardly from each gear segment. The leg segments and the clamp member are configured to allow the hinge members to rotatably traverse a greater than 180 degree arcuate path of travel relative to each other.

Abstract: A rodent trap, particularly for mice, comprises a substantially closed container which includes a fixed stationary ramp surface extending from a position adjacent the lid of the container downwardly from one side of the container toward an opposed side at which it ends at a position adjacent to but spaced from the side surface. An upper portion of the ramp surface is roughened to give good grip to the rodent while a lower portion of the ramp is smooth to prevent or inhibit the rodent from turning or reversing once it has reached the lower end of the ramp surface. Bait is applied to the lower end of the ramp surface and to the inner surface of the side wall adjacent the end of the ramp surface. The depth of the container is sufficient so that it can receive the ramp while underneath the ramp is a quantity of water the depth of which is sufficient to drown the mouse. An opening in the lid adjacent the upper end of the ramp is of sufficient small size to prevent the entry of unintended larger rodents.

Abstract: A manoeuvering system for a foundry plant for the automatic manoeuvering of heavy implements includes two carrier pins located on the same side of each implement. A carriage is movably mounted to a frame and a gripper including two jaws as attached to the carriage. This gripper is rotatably mounted to the carriage so that the implement can be rotated as well as moved longitudinally.