Abstract: Volumetric metering equipment comprising an injector mounting block by which injectors of a multi-line fuel injection system can be mounted on the equipment. A measuring device is in communication with the mounting block via a feed line to allow test fluid to pass from the injectors to the measuring device when the equipment is in use. The measuring device is constructed to provide signals which are indicative of the amount of test fluid received by the device. Point-of-injection detectors are arranged adjacent to the injectors for determining which of the signals relate to an individual injection.

Abstract: An apparatus for detecting small changes in the location of a float, has, in combination, a signal generator for emitting a signal having a characteristic, a detector for detecting a modulated signal by producing a response signal directly related to the characteristic, a support for positioning the signal generator and the detector, and a float weighted to float at a desired depth in a selected liquid. Also included are a reservoir for holding a measuring medium, a plug for preventing condensation of vapors within the float, with the float movably connectable to the support, and the detector and the signal generator fixedly connectable to the support so that the signal when emitted by the signal generator will have the characteristic of the signal modulated by the measuring medium by an amount which varies with changes in location of the float to produce a modulated signal.

Abstract: A load monitoring system for a press comprises a slide-position counting circuit, A/D converter, random access memory and display. The load monitoring system receives a load value applied to the press and a slide position value from a load detector and a slide position detector mounted on the press. The load value is converted into a digital value through the A/D converter, and undergoes sampling according to the slide position. The sampled digital load values are sequentially stored in the random access memory and after the measurement of the load, the stored values are sequentially displayed together with the corresponding slide positions. The load monitoring further comprises a calibration circuit for automatically carrying out calibration as well as slide position setters for measurement start, measurement end and display. By these position setters, slide positions at which load measurement starts and ends, and corresponding to which the measured and stored load value is displayed can be set manually.

Abstract: A system for measuring the quantity of particulate material carried by a fluid flow. The system is connected to receive the fluid flow and induces a change in direction in that flow. The pressure drop of the fluid flow across the direction change is sensed and the pressure drop related to the quantity of particulate material within the fluid flow. In a preferred embodiment, the direction change is along a generally helical path with the pressure drop being measured across at least a portion of that path. The pressure sensors may be adjusted to measure static as well as positive and negative velocity pressures so as to zero out the pressure drop due to the fluid flow alone.

Abstract: An ice porosimeter for the accurate and efficient derivation of measurements concerning the porosity of a porous material, which includes a mercury dilatometer having a mercury-filled reservoir with a capillary stem extending upwardly therefrom. The porous material to be analyzed is inserted into the reservoir after it is saturated with water. The temperature of the contents of the reservoir is then varied to cause the water in the porous material to change state, either freezing the water or melting the ice. A thermistor measures the temperature in the reservoir and transmits these readings to a means for recording those measurements. Concurrently, a condenser is placed surrounding the capillary stem of the dilatometer and is connected to electrical circuitry which induces a capacitance across the condenser.

Abstract: A leak detecting method utilizes a pressure vessel for holding gas under ssure and a transparent chamber partly filled with liquid. A conduit defines a gas pathway from the vessel to a location within the chamber which is beneath the surface of the liquid. A fitting is provided for connection to a system which is to be tested and a further conduit connects the fitting through a first valve to a location within the liquid chamber, and through a second valve with the interior of the vessel. The fitting is connected to a system to be tested, and the first valve is closed. The system is pressurized to fill the conduit means and allow gas entering the conduit means to pass through the second valve into the interior of the vessel. The second valve is enclosed, thus isolating the vessel from the system. After a pause to allow leakage in the system to lower the pressure, the first valve is open and if gas bubbles in the liquid, then leakage has occurred.

Abstract: An improved vortex shedding flowmeter sensor and method are disclosed. The vortex shedding sensor is a bistable element. The element is constrained to operate in a transition deflection region between two stable stages. The element tends to alternate states at the frequency of vortex shedding, thereby amplifying the input signal at low levels and extending the low range of flow rate measurement.

Abstract: This invention concerns a device for checking the depth reached by operation of a digging machine including a digging implement (11) arranged on an arm (8) pivotably supported relative to the machine. The device comprises a fluid-filled conduit (13) associated with the arm (8) and extending between a location (14) thereon and a location (15) on the machine separated from the arm. The conduit is associated with a pressure sensor (17) for delivering information corresponding to the height of the fluid column between the locations. On the arm (8), there is provided, in addition to the first mentioned sensor (17), a second sensor (18) adapted to deliver information as to the inclination of the arm. In this way, the pressure sensor (17) may be provided at an arbitrary location on the arm 8.

Abstract: The present invention pertains to a method and apparatus for testing casing for pressure and tension limits by inserting a sealing plug into both ends of the casing, threads on the plug for gripping the casing, and a compressible packing ring associated with the plug for sealing the casing, and thereafter pressuring and tensioning the plugged casing.

Abstract: Apparatus for measuring the temperature distribution along the inside walls of narrow, shaft-shaped spaces such as heating flues of coking and similar ovens using a radiation pyrometer with an evaluating arrangement, whereby a radiation optical system is disposed at one of the ends of the space and contains a mirror tiltable about an axis, for optical coverage of the entire length of the space and forwarding of the detected radiation into the path of rays to be evaluated, as well as a positioning arrangement for tilting the mirror over the area to be optically covered. Therewith a fixed mirror is arranged after the tilting mirror and the path of rays to be evaluated is focused to the end of a photoconductor, which, in a transportable and coolable measuring lance, is directed to an evaluating arrangement. The measuring lance can be coarsely and finely positioned by means of a carriage arrangement.

Abstract: A series circuit including a transducer responding to the parameters of motion of an object during impact, a pulse shaper and a main switch. Connected to the output of the switch are a unit for measuring the area of the impact pulse, an integrator and two AND-NOT elements. The device also includes three additional switches. One input of one switch is connected to the output of the area measuring unit and the other input of this switch is connected to the output of one AND-NOT, while the output is connected to the input of a memory block. One input of the second switch is connected to the output of the area measuring unit, while the outer input of this switch is connected to the output of the AND-NOT through a NOT element. The output of the second switch is connected to the input of a second memory block.

Abstract: A pipe-line for conveying a fluid submerged in an ambient fluid medium has an inner conveying tube surrounded by an outer tube radially spaced from the inner tube and defining a continuous annular space therebetween. A leak conductor communicating with a leak collector and surrounding the inner conveying tube conducts leaks of conveyed fluid to the leak collector. The leak collector has a reduced cross-section and is divided into adjacent sections isolated in a fluid-tight manner relative to each other and extending throughout the length of the tube. Each of the sections has at least a single valve automatically opened by predetermined pressure of the conveyed fluid leaks for providing communication with the annular space surrounding the inner tube.

Abstract: An apparatus for measuring the mass of a flowing medium, in particular for measuring the aspirated air mass of an internal combustion engine. The apparatus has a hot wire disposed in the flow of the medium, the temperature of which is regulated in accordance with the mass of the medium; and its resistance is regulated by an adjustment variable which is a standard for the mass of the medium. The hot wire is guided on a sensor ring, which is of plastic, via support points. The support points are each fastened with a fastening section in a fastening slit of the sensor ring extending in the axial direction, and they each have a guide section protruding into the interior of the sensor ring through a radial slit. A guide wire extending in the flow direction is fastened to each guide section. The terminal support points in like manner, have attachment sections by way of which an electrical connection is made with the hot wire.

Abstract: Apparatus for indicating quantity of liquified gas contained in a storage container for supplying gas to a consuming appliance, the apparatus including a pressure sensor for sensing gas pressure within the container and being arranged to operate an indicator which gives a desired indication, the indicator being calibrated to indicate the quantity by weight or volume of liquified gas contained in the container.

Abstract: A water level gauge with fault detector comprises a column for containing a level of water with a plurality of light sources on one side of the column and a plurality of detector assemblies on an opposite side of the column. Filters are utilized to project red and green light through the column. Each detector assembly includes a red detector and a green detector with red and green filters respectively. Due to the difference in offset of light beams transversing the column at an oblique angle through water and through air, the green detector is activated by green light when the green and red light passes through the water in the column and the red detector is activated when the light passes through air in the column, that is, above the water level in the column. By a circuit connected to each detector assembly, it is possible to discover the level of water in the column.

Abstract: Apparatus for drawing a sample of liquid from a body thereof into a sample bottle that has a pierceable resilient sealing closure at one of its ends comprises a support that holds the sample bottle with that end lowermost and at an elevation above the body. Two hollow needles project up from the support to pierce the closure and have their pointed upper ends in the interior of the sample bottle. A shorter one of the two needles is connected with a first duct that extends down to below the surface of liquid in the body; the other needle is communicated with the interior of a sealed wash bottle, near its bottom, which is a little below the support. Another duct, opening from the interior of the wash bottle, near its top, is connectable to a suction source, for drawing liquid through the first duct and the sample bottle into the wash bottle, thus ensuring that liquid remaining in the sample bottle is representative.

Abstract: The surface area of a plurality of samples is measured in an apparatus in which these samples are all included in a housing, subjected to adsorption of the adsorbing fluid and seriatim moved into a desorption zone in which one sample at a time is subjected to a desorption step. In another embodiment, a plurality of individual sample holders are each provided with an individual heating element to allow seriatim desorption by switching the heating of the samples from one heating element to the next. No movement of the sample holders is required in this embodiment. The apparatus and operation lends itself to automation.

Abstract: A filter testing device has a filter housing which has an air inlet and outlet and receives the filter. An inlet line is connected to the air inlet. An inlet valve for the inlet line is controlled to produce a continuous and evenly increasing air pressure therein and an electronic pressure sensor monitors the air pressure therein. An electronic evaluating and control circuit has a time switch, an adjustable threshold device and a peak pressure detector, and controls the inlet valve, a vent valve connected to the inlet line, and a recording mechanism. The air pressure in the inlet line is increased until it reaches a preset pressure. The inlet valve is then closed for the time period set on the time switch. Thereafter, air is again supplied to the inlet line until no further pressure increases are detected by the peak pressure sensor.

Abstract: A probe for measuring electrical conductance to determine water concentration in a fluid is disclosed. The probe comprises a pair of spaced apart electrodes and a bridge of protein gel between the electrodes. The probe is especially useful for monitoring water concentration in the lubrication oil for a compressor drive train of a hermetic vapor compression refrigeration system. In such a refrigeration system the water concentration in the lubrication oil corresponds to water concentration in the refrigerant of the refrigeration system.

Abstract: This invention relates to a system for sensing the liquid level and coolant properties in a fluid containing vessel by insertion into the vessel of a plurality of matched spaced sensor probes comprising a first and second temperature sensor, the first sensor essentially measuring the media temperature, a heater, an arrangement for applying differential heat between the sensors, the heater and second sensors being thermally connected, all positioned to permit the sensing at the cooling quality of the media present, the heater located directly adjacent the second sensor and adjusted so that when the cooling quality of the normal fluid is sensed the heat generated by the heater and passing into the fluid is virtually completely dissipated and only a small finite differential temperature exists between the sensors and thereby indicates a sub-cooled liquid is present.