Abstract: A conduit construction which enhances the flow of liquid to a turbine when the rate of flow from the liquid source is low, and which limits the flow to the turbine when the flow rate from the source is high. The turbine is placed in a branch conduit which communicates with the interior of a larger main conduit through an opening in the side of the main conduit near its bottom. A flow diverter in the form of a vertically concave wall extends from the downstream side of the opening across the bottom segment of the main conduit, curving upstream as it does so; the wall stops below the top of the interior of the main conduit, leaving room for liquid to flow over it. When the flow rate is small, the diverter collects all of the liquid stream in the main conduit and delivers it to the branch conduit; when the flow in the main conduit becomes excessively high, it flows in part over the diverter, thus mitigating the tendency for the liquid to back up in the main conduit.

Abstract: Apparatus for dispensing squirts of liquid into the top openings of a moving train of regularly spaced-apart containers, including a rotating circular band having a plurality of nozzle openings spaced about it and aligned directly over the container top openings, and a fixed manifold device slidingly sealed to the band and supplied with liquid under pressure so that each time a nozzle opening passes the manifold it supplies a squirt of liquid into a corresponding container moving along beneath it. Automatic shut-off of the dispenser is provided in the absence of a container by sensing the absence of the container at an upstream position and automatically moving the manifold device axially out of alignment with the path of the nozzle openings to prevent squirting of liquid into a gap in the train. Another manifold slidingly sealed to the band is supplied with pressurized air so that each nozzle is blown clean of liquid immediately after it completes its dispensing action.

Abstract: The supply of water to a diazo printer is varied in relation to the speed of operation of the printer by deriving a train of pulses recurrent at a repetition rate proportional to printer speed, applying the pulses to an adjustable digital divider which divides down the repetition rate by an adjustable divisor D, and applying the divided-down pulse train to a water pump to control the rate of water supply. Switching means are provided in the divider to enable adjustment of the valve of the divisor D. This permits adjustment of the absolute rate of water delivery for any given motor speed, after which the rate will automatically change in proportion to printer speed.

Abstract: The speed of a diazo printer is sensed and the rate of ammonia delivery to the developer chamber is automatically boosted at higher printer speeds. Preferably, a sensor positioned adjacent a rotary paper-drive member produces electrical pulses at a rate proportioned to the speed with which the copy paper passes through the developer chamber, and an electronic circuit board contains circuitry which senses when the rate of recurrence of these pulses rises into a predetermined range; when this occurs, the circuitry causes a solenoid valve to deliver an ammonia boost directly to a perforated tube located within the perforated tube through which the normal ammonia supply takes place at lower speeds.

Abstract: The flow of paint in a liquid paint stripe covering the inside of a side-seam weld extending along the top of a horizontally-disposed food can is controlled by applying induction heating to areas of the can on each side of the stripe, whereby a temperature gradient directed upwardly through the can is established to limit downward gravity flow of the paint before it sets, and thereby prevent formation of ridges and bubbles at the edges of the stripe.

Abstract: A screw for use in fastening resilient insulation to a metal building surface having threads near its tip and a reduced-diameter portion just above the threads, so that when the threaded portion has been screwed entirely through an opening in the substrate, the reduced-diameter portion of the screw is free to reciprocate in the opening and then permit compression and reexpansion of the insulation while still retaining it against lift-off.

Abstract: Method and apparatus for packing cut pickle spears in a jar in predetermined positions and orientations by laying the spears side-by-side on a flexible resilient belt, rolling up the belt with the spears on it to form a cylinder, and pushing the cylindrical array of spears out of the rolled up belt into the jar.

Abstract: Installation for central heating and/or production of hot water for sanitary or industrial purposes in which there is recovered on the evaporators of heat-pump circuits the enthalpy of smoke coming from the boiler and from outside air introduced into the installation through air inlets.Before being brought to the evaporators, the smoke is possibly cooled, however without being brought to dew point, and the heat thus produced in an exchange circuit is recovered for reheating, before its discharge into the atmosphere, of the smoke and outside air mixture so as to recreate a chimney effect, the gases discharged being hot and dry.

Abstract: The metal coating on a dielectric sheet or strip, for instance for use in capacitors, is locally removed by a Corona discharge between the sheet and a point electrode.A current return electrode contacts the sheet and is located in the return path to a HV generator connected to the point electrode.

Abstract: A lift-pad assembly of adjustable height for use on a swing arm of a vehicle lift comprises a platform for contacting and at least partially supporting an undersurface of the vehicle, the platform being vertically adjustable in position while remaining horizontal by mounting it on the arm by means of pivotable support linkages the pivot axes of which are at the vertices of a parallelogram. Vertical positions for the platform other than fully up or fully down are provided by bars which can be interposed at will between the platform and a lower base support by operation of one or more slideable plates.

Abstract: A cable carrier providing substantially complete enclosure of a cable or the like is made up of pivoted, partially-overlapping, hollow rectangular links provided with stop means limiting the degree of flexing permitted in either angular sense. Sheet-like joint closures extend between adjacent links and into pockets at each end of each link, and close the openings otherwise formed between adjacent links when they are pivoted out of alignment.

Abstract: The fact that meatballs in a casing have been heated to a predetermined temperature sufficient to inactivate the virus of foot and mouth disease is permanently indicated by using a holder device to position a temperature recorder at the thermal "cold-spot" of the mass of meatballs. The temperature recorder is preferably of the type which permanently changes color when heated to the desired predetermined temperature, and the holder may be an apertured disc to which the temperature recorder is secured by an enveloping netting. An import inspector will then be able to ascertain that the meat has been previously heated to the desired temperature by observing the color of the temperature recorder.

Abstract: An active nutation control system for a space vehicle spinning about a geometric axis has thrusters for creating an external torque about an axis transverse to the first. The amplitude of the nutation and its phase in relation with the spinning movement are detected. A control arrangement receives signals from the nutation detectors, computes the changes in the angular direction of the angular momentum of the vehicle caused by thruster activation and energizes the thrusters when contemporaneously the amplitude of the nutation movement is greater than a predetermined threshold, the phase corresponds to maximum efficiency of said thrusters in reducing nutation momentum of the vehicle or at least does not increase it.

Abstract: A cleaning device for cleaning a conveyor belt comprises a cleaning member mounted on a lever which can move angularly about a pivot axis extending transverse to the run of the belt, the lever also carrying a pressure member arranged to contact the face of the belt opposite to the face to be cleaned, the cleaning member being urged into contact with the surface of the belt by the reaction of the pressure member to movement of the belt causing angular movement of the lever about its pivot axis. The pressure member and cleaning member may be resiliently urged towards one another in the direction of the axis of the lever to enable wear of the cleaning member to be compensated automatically while reducing the angle through which the lever pivots during the useful life of the cleaning member.

Abstract: Fittings and methods for manufacturing fittings for piping are disclosed. The fittings are assembled from three identical molded pieces joined along longitudinal edges. Interfitting pieces form the joints between the sections and serve to draw the sections together during assembly and ensure roundness of the fitting. The technique is especially useful for the manufacture of fittings such as well screens, of synthetic polymeric materials.

Abstract: The degree of ignition advance of a supercharged spark ignition internal combustion engine is automatically controlled. The controlling device comprises a first member for increasing advance when the speed of the engine increases. It also comprises a second control member (6) connected to a point of the induction passage (1) which passes from upstream to downstream of the operator operated throttle member (2) upon opening thereof and to a point (17) which is permanently upstream of the throttle member.

Abstract: A hydroelectric generator is located in the basement of a high-rise building and connected in series in the clean waste-water line of the building, to produce electrical power in response to the flow of the waste water from the building. An automatically controlled valve in a bypass line serves to direct excess water flow around the hydroelectric generator unit and maintain the flow through the generator unit at a predetermined maximum level. An automatic switch-over device disconnects the generator output terminals from the electrical output terminals of the unit when the voltage and/or frequency of the generator output is unsatisfactory, e.g., too low.

Abstract: A skeletal framework structure employs a special junction for securing together the ends of the framework members, the ends of one pair of which members have longitudinal axes lying in a common plane while the axes of others of the members extend at angles to that plane. The framework members having axes lying in the same plane may be parts of straight tubular arch members in the framework, while the framework members extending at an angle to that plane may constitute spacer members, or purlins, extending perpendicular to the plane of the arch members, or may constitute diagonal bracing members extending at other angles to the plane of the arch members. In the junction, a first flat plate member extends parallel to the plane of the axes of the arch members and bears against and bridges the adjacent ends of said arch members, while a second similar plate member parallel to the first plate member bears against the opposite sides of the same arch members.