Abstract: Anchor organization for a layer of refractory material deposited on a refractory furnace lining. The organization includes a number of non-metallic refractory anchors disposed at spaced locations about the furnace lining surface. The anchors are provided with a particular configuration that includes a concave locking surface on each end providing a refractory-retention function. Each anchor has one end cemented into a hole in the lining and the other end immersed in the cementitious refractory material that is deposited on the surface of the furnace lining. A plunger tool is also disclosed for use in inserting the anchor and cement into a hole in the lining.

Abstract: A method and apparatus for repairing "hot spots" in a refractory lined wall, applicable especially to blast furnaces. A plurality of relatively closely spaced couplings are affixed in advance to a metal shell which overlies the refractory lining. When a hot spot is observed, a jig is installed successively on couplings overlying the hot spot and holes are drilled in the shell. The couplings accommodate a grouting machine which injects grouting material through the holes.

Abstract: A control system for an electrically powered vehicle has thyristors acting as choppers and switches in its power circuit. An on-board digital computer provides gating pulses to the thyristors to control traction and auxiliary motors in accordance with programs responding to operator, circuit and vehicle condition signals. The programs provide for vehicle start-up, shutdown, regular operation, limited operation and maintenance.

Abstract: A method and apparatus for the ultrasonic detection of pipe cavity in hot slabs, blooms, and billets to determine the optimum cropping length. An ultrasonic transducer surrounded by a water-jacket for circulating a cooling medium is embedded in a blade of the crop shear of a primary mill. The pressure of the shear blade against the workpiece is utilized to create the proper acoustic couple between the workpiece and the transducer.

Abstract: A circuit for determining the duration range of each incursion by a variable signal on one side of a selected level uses a comparator with a reference crossing level to develop a squared waveform pulse output. Each pulse is integrated and the value gated to a plurality of comparators. The comparators have inhibit interconnections and reference inputs for the desired ranges.

Abstract: A surface roughness analyzer uses a varying electrical output of a transducer attached to a stylus scanning a surface to provide a pulse train having a pulse duration representative of the peak support width established when the output crosses a reference level. During a scan an average arithmetic average roughness is indicated and the pulses are counted which occur within selected ranges of peak support width. Readouts at the end of the scan include average arithmetic average surface roughness, bearing area and peak count with reference levels based on roughness range or bearing area.

Abstract: A lightweight, easily-installed boot for wire rope terminations is water-tight and adaptable to a variety of wire rope terminations. The boot is placed on the surface of a wire rope and secured to the socket nose of the termination to seal the termination-wire rope interface; then, a polyolefin heat shrinkable tube is placed over the head of the boot to seal the wire rope-boot interface.

Abstract: A method of determining properties of sheet metal uses a specimen having a full width section and a reduced width section about 95% the width of the full width section in a tensile test. The strain hardening exponent is calculated from thickness and width measurements made before and after the specimen is strained to failure. The same and other measurements are used to calculate yield strength, elongation, ultimate strength and plastic strain ratio. Particularly useful for continuously yielding materials, the yield strength may also be determined from calculations using the strain hardening exponent and the ultimate strength.

Abstract: A weld inspection system uses fluoroscopic flaw detection particularly sensitive to volumetric type weld flaws and ultrasonic flaw detection particularly sensitive to planar type weld flaws. Both inspections are performed simultaneously throughout the pipe length. Each system marks the pipe with a distinguishing mark to identify the location of the flaw detected by that system. The fluoroscopic system is a high resolution system, the ultrasonic system avoids detection of minor non-rejectable variation in weld bead geometry and is calibrated to a desired sensitivity level.

Abstract: A method of making electric cable having a plurality of electric conductors stranded together with a deformable semi-conducting strand in each valley between the conductors and a shielding composition around and in intimate contact with the conductors and strands. The conductors and strands are stranded together into a stranding die and the plastic composition is forced around them while they are in the stranding die.

Abstract: A combination burner has a burner pipe for pulverized fuel beside a burner chamber for fluid fuel. A plurality of retractable nozzles mounted in a retractable housing inside the chamber are connected to a plurality of fluid fuel sources. Primary air may be controlled in varying amounts to both burner pipe and burner chamber. Nozzles may be angled with respect to burner pipe to provide supportive flame.

Abstract: An ultrasonic weld inspection system has an ultrasonic transmitting transducer and an ultrasonic receiving transducer on the same side of the weld. A beam of ultrasonic energy from the transmitting transducer directed into the weld center impinges upon a flaw and the receiving transducer is aligned to receive only a portion of the ultrasonic energy beam scattered by the flaw while avoiding receiving reflections of the beam off the flaw and off weld contour irregularities.

Abstract: A sonic interference suppressor has a wiper of flexible material for wiping loose foreign material and excess water from a weld during ultrasonic inspection of the weld. A thin film of water between the contour conforming wiper and the weld passes unwanted ultrasonic energy into the wiper and on into foamed backing material.

Abstract: A scanning pyrometer for measuring the temperature of moving material having a plurality of separate components has an oscillating mirror in an optical system focusing thermal radiation from the moving material on a thermal radiation detector. Temperature is determined by circuitry providing an electrical signal representative of the peaks of the pulses output of the detector.

Abstract: A system for making cutouts and angular cuts in stepped siding uses a punch to remove, at the desired cut location, a rectangular section including the step and a small portion of both faces adjacent the step. The punch operates in a shearing manner with cutting surfaces progressively contacting the siding as the punch is moved into the die. Final cuts of the siding are made with cutters which do not require support of the stepped portion of the siding.

Abstract: A system for the detection of faults along an electric overhead traveling crane runway has a transducer detecting axial movement of a crane wheel drive shaft connected to a vibration analyzer. As the crane is moved along the runway, the analyzer provides a signal indicative of axial vibrations to a calibrated recorder to produce a graphical record which is correlated with the location of supporting columns and rail joints.

Abstract: A system for automatically sensing lateral movement of a longitudinally moving weldment bead has two conical shaped contact rollers mounted on generally parallel shafts, generally at right angles to the weldment bead and driven by contact with the weldment bead. The rollers are mounted in opposite directions and define a null point when the roller diameters contacting the bead are the same. A pulse tachometer mounted on each shaft provides different signals when lateral movement of the longitudinally moving weldment bead away from the null point causes the rollers to rotate at different speeds. Electrical circuitry responsive to the different signals actuates a servo mechanism to move the bead to the null point.

Abstract: The coil support of the invention comprises conical shaped mandrels disposed on the end of the horizontal rotatable shaft in each of the two coil supporting assemblies of a strip uncoiler. The surface of the mandrels of the invention each have indentations spaced around its circumference. Such indentations are preferably in the form of axially directed with the surface area of the lands substantially larger than the surface area removed by the grooves.

Abstract: A mechanical turning device for structural shapes has a hollow power driven shaft supported on the end of a frame. Turning jaws are located on the end of an extension shaft which fits inside the hollow shaft and rotates with it and is moved in and out by an air cylinder. The device is wheeled into position at the end of a beam, the air cylinder actuated to move the jaws out to engage the beam end, the shaft rotated to the desired position and the jaws are then retracted.