Abstract: A method for desulphurizing molten pig-iron involving injecting a gas-evolving desulphurizing agent which includes a calcium compound and a gas-forming material comprising of a liquid gas-producing compound absorbed in a porous slag-forming agent and at least 50% wt. magnesium.

Abstract: An especially configured, ringless, container-lid design is disclosed having improved sealing characteristics applicable to paint containers for the consuming public. The rim portion of the container is provided with a tapered, especially shaped wall section terminating in a curled bead which is received in a sealing groove in the lid. The container rim section is rigidized by a single protrusion in the form of a stiffening groove to prevent vertical collapse of the container. The lid has an inverted U-shaped groove sealingly engaging the container's bead. Extending from the inner wall segment of the U-shaped groove in the lid is a frusto conical wall segment extending radially-inwardly and vertically-upwardly to a flat, annular, radially-inwardly extending surface which in turn terminates in a downwardly-extruding frusto conical surface so that a raised collecting basin is formed in the lid.

Abstract: A granular flux suitable for submerged arc electric welding comprising particles of composite fluxing ingredients of the agglomerated or fused type combined with a halogenated polymer as a reducing agent for diffusible hydrogen in the resulting weld metal and a method of making this granular flux wherein the polymer is mixed with the flux particles and then heated to a temperature above the melting temperature of the polymer and below the vaporization temperature of the polymer.

Abstract: A method of treating a terne coating to accelerate the patina on the terne coating. The terne coated metal is coated with a specially formulated asphalt based paint which produces a semi-transparent or translucent, dull finish on the terne coated metal. The coated terne coated metal is then exposed to the natural atmospheric elements for at least six months wherein such time enhanced oxidation of lead and tin occurs.

Abstract: The invention provides a tractor-drawn mower for use in harvesting a crop. The mower comprises a frame and at least two rotatable cutting elements for cutting the crop mounted rotatably on the frame. The cutting elements have non-overlapping loci of cutting movement and are arranged on the mower to cut in use overlapping swathes of crop material. Preferably, the cutting elements are provided at or towards the periphery of a plurality of cutting discs which are spaced along a substantially common axis on the mower frame.

Abstract: An anti-theft device that is adapted to be connected adjacent to or on a battery of a motor vehicle and including a power switch for disconnecting the battery from its standard battery cable when current flowing through the cable exceeds a preselected substantial amount of current associated with an attempt to start the vehicle. A lockout circuit is actuated by a remote transmitter for generating an external command signal to override the operation of the power switch. This device can be attached directly to a battery without external wiring and still provide the passive or self-arming anti-theft device.

Abstract: Propeller with twistable blades comprising a spar with ribs which can be rotated in opposite directions about the axis of the spar by an adjusting device. A coupling device in the propeller ensures that when two ribs are rotated in opposite directions by the adjusting device, the other ribs are adjusted accordingly. The coupling device consists of a rod substantially parallel to the spar and designed to be relatively bendable in the plane through the spar and the rod, and relatively resistant to bending in the plane perpendicular thereto. The rod couples at least three ribs together in such a way that it distorts when two ribs are rotated in opposite directions along a helix about the spar, causing subsequent ribs to move with it on this helix.

Abstract: Tube bending apparatus comprising a lower support carrying a mandrel having a bending groove providing a bend axis, and an upper support mounted on the lower support for rotation about the bend axis and carrying a forming member for urging a tube between the mandrel and forming member into the bending groove on rotation of the upper support relative to the lower support. The upper support is adapted to be rotated relative to the lower support through a drive shaft arrangement extending downwardly from the lower support and coupled with a drive unit having an output coupling coaxial with the drive shaft and transverse to the axis of the drive motor of the drive unit. A stand supports the bending apparatus and drive unit relative to an underlying support surface during operation of the bending apparatus.

Abstract: A protector guard housing is disclosed for a catheter type needle apparatus to prevent accidental needle puncture. The guard housing is initially positioned between the hub of the catheter and the handle of the needle which slidably extends through the catheter in a known manner. A detent mechanism initially retains the forward end of the guard to the catheter hub while needle supports within the guard permits the needle to axially move relative to the guard. When the needle is withdrawn from the catheter after site puncture, a resilient closure wall formed in the protector closes the protector's forward end while the needle's cutting end is simultaneously wedged into contact with friction retention material in the protector. The needle's cutting end is thus encapsulated within the protector when the detent mechanism releases the protector from the catheter.

Abstract: A retainer ring for a container of low twist welding wire which container includes a cylindrical outer wall, a lower partition and an upper opening through which the welding wire is drawn from a hollow, cylindrical spool of welding wire formed from a multitude of convolutions of wire in layers provided in the container wherein the retainer ring comprises a generally flat outer portion with an outer periphery fitting into the outer wall of the container, minimally contacting the wire surface, and comprising a number of projecting lobe portions whereby the outer periphery of the ring contains alternate areas first being closer to and then being farther from the outer walls of the container when the retainer ring is resting upon the hollow spool of welding wire in the container and an inner bell mouthed portion extending upwardly and defining an innermost wire extraction opening with a diameter substantially smaller than the spool of wire in the container.

Abstract: A method and system for controlling a welding cycle of an arc welder comprising: a number of digital programs stored in a digital memory device, with each of the programs including a plurality of digitally coded welding parameters indicative of selected functions of a specific welding cycle; a weld controller for converting the selected functions of a digital program into welding parameters at the output of the welder; a display panel having a group of switches located in a given pattern and a decoder network at a selected position for creating a decoded signal indicative of the activation pattern of the decoder network; means responsive to the decoded signal for activating said switches in either a first condition where the switches activate means for modifying a selected one of said digital programs or a second condition where said switches activate means for creating a program select signal corresponding to a given digital program; means responsive to a program select signal for selecting one of the progra

Abstract: An electronic alarm is disclosed for use in a moving vehicle which generates ultrasonic sound for preventing animals from moving into the path of the vehicle. The device includes a simplified driver circuit for generating electrical impulses in the form of square waves having constant peak-to-peak voltages. The driver generates the square waves with periodic, sequentially increasing wave frequencies followed by sequentially decreasing wave frequencies. A coupling transformer converts the square waves into electrical sine wave voltages having high peak-to-peak voltages to cause a piezo-electric transducer to emit intense, ultrasonic sounds of periodically increasing frequencies followed by periodically decreasing frequencies simulating the warble effect of a siren without excessive heating and premature failure of the transducer. The ultrasonic warble effect confuses the animal to prevent inadvertent movement by the animal into the oncoming vehicle's path without injury to the animal.

Abstract: A mechanical anti-theft device of the type applied to the steering wheel of an automotive vehicle which automatically ratchets to it's applied position without necessity of key lock actuation is provided with several security enhancing features which cumulatively prevent or make the device exceedingly difficult to unlock using conventional burglary tools or lock picking techniques. The features include configuring the ratchet teeth of the telescoping rod member in a way which minimizes any attempt to deactivate the lock unless the key is used. In combination with the ratchet teeth configuration, the lock pawl mechanism is configured to include an arcuate, transversely extending apex edge line or surface which cooperates with or is sized to be coincident with the rod members circumference to prevent a wedge, shim or pick from being readily easily inserted between pawl and ratchet tooth to force a retraction of the pawl.

Abstract: A mounting assembly for a plurality of bipolar electrical components connected between two generally parallel electrical supports, each bipolar electrical component having a lower base terminal fixedly mounted to the first electrical support and a generally flat upper terminal having a random angular orientation about the central axis of the electrical components, an electrically conducting coupler which telescopically receives the upper terminal of the component to form a rigid electrical connection between the coupler and an electrical component at one end of the coupler and the other end of the coupler is electrically connected to the second electrical support.

Abstract: A portable pipe cutting machine comprises a frame, an arm having opposite ends and supported on the frame for pivotal movement about a pivot axis between the opposite ends, a cutting wheel rotatably mounted on one of the ends of the arm, and a hydraulic piston and cylinder unit between the frame and the other end of the arm for pivoting the arm to displace the cutting wheel toward a pipe to be cut which is supported on rollers mounted on the frame beneath the cutting wheel. A manually operable variable displacement pump delivers fluid under pressure to the piston and cylinder unit to displace the arm toward the pipe, and an electric drive motor unit is supported on the arm for displacement therewith and includes an output end axially slidably interengaged with a drive shaft for the cutting wheel.

Abstract: A method and system for applying a water gathering and channeling roof covering onto the upper roof of a building, which roof is at least slightly pitched, wherein fully annealed sheets of at least 99% titanium with a thickness of less than 0.020 inches are preformed into roof pans with right hand and left hand edges thereof formed into matching, longitudinally extending standing seam elements. The pans are placed in adjacent, abutting relationship with one another and joined together by press fitting adjacent standing seam elements into a standing seam extending along the roof's pitch and forming a water collecting trough for gathering potable rain water.

Abstract: A method of making a microwave reconstitutionable pizza including coating the outer peripheral edge of the pizza crust with a liquid crust coloring substance, which includes an aqueous solution of an edible dispersion agent and a natural occurring coloring agent which can be coffee, tea, chicory and mixtures thereof.

Abstract: An edible fruit spread in a form similar to a jelly or jam having improved texture and flavor characteristics and a decreased dissipation rate in the mouth during consumption is prepared by incorporating a pectin, starch, cellulose, carrageenan or protein based fat mimetic into a fruit spread recipe.