Abstract: Apparatus for stripping an anode block, or butt, from an anode assembly used in aluminum smelting includes a conveyor having a carrier from which the anode assembly is suspended and a stripping station on the path of travel of the conveyor. At the stripping station, the support of the anode assembly is transferred from the carrier to an anvil which is mounted in the path of movement of the anode assembly so as to be engageable by the yoke portion thereof. The transfer is accomplished by lowering the carrier and anode assembly on a lift section of the conveyor, stabilizing the anode assembly against longitudinal and transverse swinging movements, and forwarding the carrier and the anode assembly along the lift section to a stripping position by a feeding device, the yoke of the anode assembly engaging an upwardly inclined ramp surface on the anvil during this forwarding movement and thereby transferring the weight of the anode assembly from the carrier to the anvil.

Abstract: Nitrogen oxides in an exhaust gas are selectively removable by employing ammonia as a reductant and by employing a catalyst composed of alumina, copper, and at least one of the alkali metals, the alkaline earth metals and the transition metals. Optionally, the catalyst composition may include a slight amount (less than 1% by weight) of a precious metal such as rhodium, ruthenium, plantinum and palladium. This selective removal of nitrogen oxides is not impaired by the presence of O.sub.2, H.sub.2 O and SO.sub.2 in the exhaust gas.

Abstract: A low temperature liquified gas storage tank is supported in the hull of a ship by a plurality of chocks secured to and spaced peripherally around the tank and by chock engaging members carried by the ship's hull. Pressure resistant heat insulating pads disposed between the chocks and the chock engaging members are arranged to provide sliding surfaces which support the tank horizontally and vertically and permit thermal contracting and expanding movements of the tank relative to the ship's hull and which compensate for thermal expansion and contraction of the chocks and the chock engaging members.

Abstract: A pair of boring bars are constructed from a single double length straight bar by providing a central bend of suitable angle and curvature to provide a pair of offset supports for a pair of cutting inserts having cutting points projecting to an offset cutting position relative to the periphery of the bar. Cutting out a small segment at the center of the bend provides two boring bars with curved ends. Machining of a chip clearance path and insert pocket on one side or the other of each bar completes a pair of left or a pair of right or opposite hand boring bars.

Abstract: A plurality of molds, each consisting of a pair of relatively movable mold halves, are mounted on a turntable equidistant from the center of turntable rotation, and are moved successively through a receiving sector where they engage and grip a workpiece such as a heated tube fed tangentially to the circular path of movement of the molds. Positioning pillars located on each side of a workpiece cutting device mounted between adjacent molds, engage the workpiece and correct the attitude thereof relative to each receiving mold and to each cutting device, which also is equipped with means for gripping the cut ends of the workpiece when each mold is opened at the end of the molding cycle.

Abstract: Automatically adjustable stop for establishing limit of hydraulically powered axial advance for a milling spindle head with positive means for holding the spindle in fixed advance position during the milling operation along a plane normal to the spindle axis and with automatic gauging means for determining need for adjustment of stop position and gauge responsive means for automatically effecting such adjustment in the stop position while the spindle head is retracted from operating position.

Abstract: A product and method of producing a spheroidal graphite cast iron pipe of ferritic structure by casting in a non-chilled condition and by providing a controlled low rate of dissipation of the self-heat of the pipe within a heat dissipation rate controlling furnace or a sealed or insulated centrifugal casting mold.

Abstract: A refining means for obtaining high duty spheroidal graphite cast iron through heating molten pig iron in an arc furnace to above the decomposition temperature of silicon oxide in the presence of carbon, such as 1500.degree.C, whereupon a refining agent containing quick lime, graphite powder, calcium silicate, and calcium carbonate is allowed to react in refining through deoxidation and de-sulphurization.

Abstract: A laminated composite pipe is produced by employing a pre-formed pipe as a core and applying a layer of reinforcing fiber onto the outer surface of the pipe core which is being lowered vertically in the direction of its length through a hopper and a tubular outer mold. Resin supplied to the hopper is drawn into an annular space between the wound pipe and the outer mold and forms a layer on the wound pipe core. A flexible pipe may be used as the core, together with a resin that can be subsequently cured, thereby forming a flexible laminated composite pipe which can be covered with a parting tape, stored in reel form, and given a permanent set after installation by curing the resin. Depending upon the nature of the resin employed and upon the number of resin layers applied to the pipe core, reinforcing, insulating and stiffening properties, or any combination of such properties, may be imparted to the composite pipe.

Abstract: An overhead power and free conveyor system in which a carrier is propelled along a portion of the carrier track of the system in the conventional manner by a pusher on a driven chain engaging a driving dog on the carrier. The carrier is propelled along another portion of the carrier track of this system by a self-propelled tractor, with provision for transferring a carrier from one of these forms of propulsion to another. Preferably, the tractor travels on the carrier track when propelling a carrier or a train of carriers, which may be directly coupled to the tractor. Alternately, the tractor travels on the carrier track and pulls a tow bar, supported by a separate track, and equipped with a pusher engageable with the carrier driving dog.

Abstract: An "arm wrestling" exercise device comprising; a helical coiled spring with a hand extension and adjustably mounted in a sleeve between a pair of brackets on a base providing for elbow engagement and arm deflection of the spring to a "down" position. The sleeve is angularly adjustable to accommodate the user's arm length and the spring is axially adjustable within its sleeve retainer to vary the number of active coils and thereby the stiffness and force required to deflect the spring. Such adjustment together with a series of calibrated coiled springs provide for continuous adjustment of stiffness from minimum to maximum.

Abstract: The invention pertains to the field of cutting tools having indexable replaceable cutting inserts and comprises novel means for locating and locking the individual inserts in place with assurance that the inserts are accurately positioned and firmly held with particular advantage in simplicity and economy of construction. The locking means comprise fastening means engaging the tool body and engaging an extended slidable insert bottom seat anvil such that upon actuation the bottom seat anvil is drawn axially, radially and circumferentially relative to the tool body thereby simultaneously drawing the cutting insert retained on the bottom seat anvil into tight engagement with two insert side locating surfaces formed on the tool body and drawing the bottom seat anvil into tight engagement with the tool body.

Abstract: A sealed, vibration resistant, non-separating joint construction connects the plug end of one pipe to the socket end of another pipe. A split lock ring, recessed in an internal groove in the the plug end before insertion of the plug into the socket, is then contracted and extended from the groove into engagement with the outer surface of the plug by set screws on the socket spaced circumferentially around the groove. The contracted lock ring centers the plug in the socket and axially overlaps a radially projecting shoulder or step surface on the plug to prevent axial separation. A sealing member is pressed axially into the annular space between the inner surface of the socket, the outer surface of the plug, and the outer lateral surface of a back-up ring covering the outer lateral surface of the lock ring.

Abstract: A center cutting indexable insert end mill which can be used for axial plunging in solid material or side cutting. The center cutting insert having corner radii is positioned with the axial center line of the tool shank intersecting the inner corner radius. A single square insert with side clearance angle having the cutting face located in a radial plane provides alternate active cutting edges for axial and/or radial feed; alternatively a second diametrically oppositely located identical insert located radially outward of the center cutting insert performs side and outermost axial cutting functions.

Abstract: A universal joint construction connecting the ends of two pipes is formed by a pair of articulation rings, each fitted over the end portion of one of the pipes and attached thereto. A spherical convex outer surface on each articulation ring is engaged in opposite axial directions by a pair of concave inner surfaces - one on a joint or coupling pipe, and the other on a separation preventive ring attached to the joint pipe. A sealing member is provided between each pipe and articulation ring and between each joint pipe and articulation ring. For attachment, each of the articulation and separation preventive rings is provided with an internal annular groove receiving a split lock ring which is contracted to engage an external recess in the associated pipe by radially extending screws entering the groove at circumferentially spaced locations.

Abstract: The vibration damping construction for boring bars comprising a cutter insert holder bar cap rigidly mounted on the end of a boring bar having a rigidly anchored cantilevered internal bar extending back within a cylindrical cavity in the end of the boring bar on which an optional number of heavy reactors are assembled with optionally varied radial clearance for relative oscillatory movement, as well as axial clearance for free independent movement and with outer radial clearance relative to the inner wall of the boring bar exceeding the maximum oscillatory movement whereby reactive oscillatory damping impact transmitted to the cantilevered inner bar will in turn be transmitted to the anchor point of the inner bar and thereby concentrated near the axial location of the cutter insert.

Abstract: Exhaust gas cleaning catalysts are produced by alloying copper and aluminum with at least one of the elements, nickel and chromium, and eluting by alkali or acid means aluminum from the cooled alloy surface. Small amounts of other metals from the fourth or fifth period V.about. VIII groups, may be added to the catalysts by alloying, or by impregnation, for enhanced catalytic properties. The catalysts exhibit improved reduction of NO and oxidation of CO in an exhaust gas stream, in the presence of Pb, SO.sub.2, moisture and hydrocarbons (H.C) and at relatively low temperatures.

Abstract: The apparatus comprises high pressure injection means for supplying during an accurately adjustable controlled cycle time an accurately adjustable controlled volume of atomized cold set catalyst into a high pressure dry air, nitrogen and/or CO.sub.2 gas stream passing through the core box to cure the resin followed by a continuing air, nitrogen or CO.sub.2 gas purging of the core box. The fumes from the core box are drawn through a natural gas or propane fired fume incinerator wherein an excess air-fuel mixture causes oxidation of the fumes during a controlled temperature and residence time. The fume incinerator operates continuously at a constant temperature under control by an automatic temperature sensor regardless of fume input and includes suction means to prevent back flow of gasses from the incinerator to the core box.

Abstract: A carding method in which the rotary flats of a carding machine are driven intermittently so that each time the flats are driven only a portion (1/6 to 1/4) of the flats opposed to the cylinder of the machine are replaced by fresh flats, thereby decreasing the amount of good fibers in the waste, particularly when carding synthetic fibers.The carding machine is provided with a solenoid clutch in the drive mechanism for the rotary flats and the flat cleaning means, and with a timer for controlling the clutch so that the flats can be intermittently driven at desired drive and stop intervals. For carding polyester fiber, the drive interval may be enough to replace one-fifth of the flats opposed to the cylinder of the machine with fresh flats, and the stop interval may be as much as sixty minutes.