Abstract: In a bandoleer of composite insulation displacement connectors, the tubular end portion of each composite connector incorporating diametrically opposed bifurcated insulation displacement contacts is joined to a side edge of a metal strip by a fracturable link so folded out of the plane of the strip that the common axis of the slots of the bifurcated contacts lies at an acute angle to the longitudinal axis of the strip. This acute angle is such that, when composite connectors are fitted into adjacent holes in a circuit board, the positions of the bifurcated contacts of each composite connector are such that a length of insulated conductor introduced between the limbs of the bifurcated contacts of the composite connector will extend between neighboring composite connectors with negligible risk of rendering difficult connection of a length of insulated conductor to a neighboring composite connector.

Abstract: A modulator and demodulator is described for a carrier frequency which is modulated by continuous pulses of different lengths time-wise, as many different lengths being provided as the number of letters, numbers, signs or even words require. The pulse generator comprises a stable oscillator and cycle counters which are controlled by a typewriter-type keyboard. The counters count cycles corresponding in aggregate duration to selected characters. Continuous pulses of duration equal to the aggregate durations of the counted cycles are generated in response to those counters. The receiver comprises a stable oscillator identical with that of the pulse generator, which is gated by the modulated carrier frequency. Cycle counters count the cycles in the gated pulses, and a read-only memory and display transform the counts into characters.

Abstract: A frame for a scoop loader, fork lift or like vehicle is provided having two lateral carriers whose lower sections are bent to the middle of the vehicle and connected to form a trough like frame that is open upward and adapted to be closed toward its rear by a counterweight connected thereto, a bearing half for supporting a wheel shaft located at the front of each lateral carrier and a pair of mating bearing halves on a separate connector component constituting a front cross piece for the frame and fastener means for connecting the bearing halves to form a complete assembly.

Abstract: A light weight servo controlled robot gripper is disclosed. A plastic body houses one or more threaded drive shafts which are powered by a direct current motor. Attached to the shafts are finger mounting blocks which support removable fingers and which can be driven both closer to and further away from a fixed point by the motor. Integral with at least one mounting block is a force transducer which monitors the load exerted on the finger through a pivot and lever action of a mounting bracket provided adjacent to the load cell. Since the transducer is in the block rather than the fingertip, fingers are readily interchangable without reinstrumentation. A limit switch, located above one of the finger mounting blocks, is used to determine coarse finger position, and an optical shaft encoder provides precise position information allowing the gripper to be utilized for a variety of position as well as force servoing tasks.

Abstract: An emulsifier for emulsion polymerization containing as its active component a half amide alkali salt and/or a half ester alkali salt of a succinic acid having a hydrocarbon substituent with 8 to 30 carbon atoms.

Abstract: A process and apparatus for the production of seamless tubing incorporating a push bench is provided in which ingots are pierced in the longitudinal direction by diagonal rolls over the stopper rods of a piercing mill to provide pierced ingots having one end with a wall thickening which protrudes outwardly or inwardly, then the wall thickening ends reshaped to provide a partially closed end and finally the pierced ingots are forced through the roll passes of a push bench by mandrel rods engaging the partially closed end so that the ingots are formed into a tube bloom.

Abstract: A card-operated parking system utilizes cards having a succession of discrete filtered light transmitting areas thereon. The cards operate a card reader which includes a light source and light sensing means, between which the card is inserted, and a punch which punches out a filter area after it has triggered the time-dispensing mechanism. The filters transmit light having a photon energy below a level characteristic of the filter material but absorb light having a photon energy above that level. Two light sensors are positioned in the light path, one receptive to light of the first mentioned photon energy and the other to light of the second photon energy. Only the outputs corresponding to filtered light trigger the parking time dispensing mechanism. The light source may be a tungsten filament bulb or a pair of light emitting diodes of different photon energies. The light sensing means may be a pair of photodiodes or a pair of phototransistors.

Abstract: Attachments for self-locking or conventional key-operated chucks on hand drills make possible simplified operation thereof. An externally threaded ring carried by the drill surrounding the chuck is internally beveled at its outer end and mates with a threaded nut. A split ring with wedge-shaped cross section is positioned between the nut and the beveled end of the ring so as to clamp the chuck to the ring when the nut is tightened. A cap made of an elastomer attached over the nose of the chuck has in its end a slot or crossed slots which grip a drill bit when it is thrust therethrough.

Abstract: An automatic lock for a rolling grille or the like is enclosed in guide means on each side of the opening to be closed and is actuated by an effort to open the grille by applying external forces opposite the direction of closure but released by lift tension.

Abstract: In a rolling mill plant for the manufacture of seamless tubes, a piercing mill (2), a planetary skew rolling mill (15) and a sizing or stretch-reducing rolling mill (18) are arranged one after the other. In order to improve the output and the quality of the products of plant of this kind, it is proposed not to withdraw the shaft rods (11) used during the piercing operation in the mill (2), but also to use them as internal tools in the planetary skew rolling mill (15). The shaft rods can then remain at the entry end upstream of the planetary skew rolling mill (15) from where they can be returned to the piercing mill (2). Alternatively (FIGS. 2 and 4) they can also pass through the planetary skew rolling mill and be returned from the delivery end thereof to the piercing mill. The insertion, hitherto required, of rods into the hollow ingots before entering the planetary skew rolling mill is not required. The heavy scaling of the surface of the bore in the hollow ingot thereby occurring is avoided.

Abstract: A transducer, wave guide and attachment means are provided as a screw member adapted to fit in a threaded opening in a transducer and having a tool engaging head at one end, an axial passage therethrough, a recess around the axial passage at the end opposite the tool engaging head, a wave guide slip fitted in the passage with a solidified bonding mass such as braze alloy or solder around the end of the wave guide in the recess.

Abstract: The finishing apparatus is a grinder or like device having a workpiece holder manipulator which is translatable along X and Y axes and rotatable about a Z axis, an axis of tilt with respect to the plane of the X and Y axes and an axis normal to the plane of tilt. The grinder head is mounted on an arm which moves toward and away from the workpiece holder manipulator. All of the above movements are hydraulically powered through servo valves driven by feedback amplifiers, the feedback coming from position and rate transducers on the apparatus. Signals from those transducers are supplied through analog-to-digital converters to a digital computer with random access memory. The grinder is operated in the Teach mode by manually controlling the movement of the workpiece manipulator and grinder head to cause the grinding element to transverse the faces of a finished workpiece or a pattern thereof and the successive positions are stored in the memory.

Abstract: An elongate deformable ribbon drive rail for carrying a working apparatus having a toothed drive gear and support mechanism is provided in the form of a first narrow elongate strip of metal of width to carry the support mechanism, a second narrower strip of metal having a regular series of corrugations extending lengthwise thereof fixed to the first strip intermediate its edges at each valley of the second strip and adapted to be engaged by the toothed drive gear while the edges of the first strip engage the support mechanism.

Abstract: A method of pouring metal to provide improved physical properties is provided including the steps of: (a) pouring the metal through a generally vertical consumable tube extending from a pouring source to a point submerged beneath the surface of a molten pool in the receptacle, (b) continuously consuming the end of said vertical tube submerged beneath the surface of the molten pool to maintain a generally uniform portion of tube end submerged in said molten pool as pouring progresses of sufficient length to provide stirring action across substantially the full top area and to prevent the metal from flowing across the top surface as a flowing layer; and (c) removing said tube when pouring into the receptacle is completed. Slag components and/or alloy components are introduced into the metal in the tube to react with the metal.

Abstract: A remote valve positioning apparatus is provided in which a valve spool is resiliently loaded at each end to a normal position, hydraulic fluid is delivered selectively to one end or the other of the valve spool at a fixed flow and the valve is positioned by pressure drop caused by the fixed flow over an orifice proportional to the stroke of the valve spool.

Abstract: An inlet unloader valve is provided for insertion ahead of one or more open center valve work sections having a pressure beyond port, which unloader valve has a spring biased spool, normally closing communication from the inlet to exhaust and proportionally opened by signal pressure from the pressure beyond port and the inlet and exhaust chambers to control flow through the work sections.

Abstract: A process for the liquefaction of coal wherein raw feed coal is dissolved in recycle solvent with a slurry containing recycle coal minerals in the presence of added hydrogen at elevated temperature and pressure. The highest boiling distillable dissolved liquid fraction is obtained from a vacuum distillation zone and is entirely recycled to extinction. Lower boiling distillable dissolved liquid is removed in vapor phase from the dissolver zone and passed without purification and essentially without reduction in pressure to a catalytic hydrogenation zone where it is converted to an essentially colorless liquid product boiling in the transportation fuel range.

Abstract: A load binder or lashing tightener is provided made up of a first inner elongate sleeve member closed at one end, an anchor fitting on said closed end, a thread nut in the other end of said first sleeve, a second outer sleeve having one end adapted to telescope over the first inner sleeve, an anchor member on said second sleeve adjacent the other end, an elongate screw extending through the second sleeve, one end threadingly engaging the nut in said first sleeve, the other end rotatably fixed in the said other end of said second sleeve, a drive on said other end for rotating said screw whereby said second sleeve is caused to telescope over the first sleeve and the anchors on said sleeves are brought together and an anchor member at the said one end of said second sleeve adapted to receive the lashing to be tightened after the sleeves have been telescoped. The drive may be a hand knob protected by a spacer ring on the second sleeve.

Abstract: A crib member for forming underground cribbing is provided in the form of a concrete circle containing fibre reenforcing and preferably in the form of a donut shaped member. A plurality of such members is stacked one on top of another to form a cylindrical cribbing.

Abstract: A motor driven vehicle for traversing the interior of a pipe or conduit accommodates itself to variations in the interior contour of the pipe and automatically positions itself on the longest axis of any cross section of the pipe. It comprises a pair of two-wheeled trucks each pivotally connected to an end of a stretcher member which urges the trucks away from each other against diametrically opposite paths of travel on the pipe wall. Each truck has a driving wheel and a swivelling wheel, the driving wheels being diagonally opposite each other. The driving wheel motors are servo-connected so as to keep the angles between stretcher and truck bolsters equal. The driving wheels are preferably constructed with rim segments which rotate about axes tangent to the mean circumference of the rim, thereby permitting movement sidewise of the wheel.