Abstract: The temperature sensor is particularly suitable for a fever thermometer which has outer dimensions of, for example, 4 mm diameter and 40 mm length. To provide the requisite stiffness, the outer sleeve is made of stainless steel or specialty steel of thin walls, for example less than 0.1 mm wall thickness, closed at one end, and the temperature sensor is positioned essentially exposed, and naked at the end of a positioning body formed of two half-sections of low-density foam material, in which a longitudinal groove is formed, through which the connecting wires of the temperature sensor extend. The longitudinal groove can be filled by a springy element, for example unitary with one of the half-sleeves, or a separate positioning rod. The connecting ends of the sensor conductors can be connected to a coaxial cable, and the end portion can have a handle plastic-molded thereabout.

Abstract: A method for determining reactive acoustic power density level and its direction in a fluid using a single sensor is disclosed. In the preferred embodiment, an apparatus for conducting the method, which is termed a thermoacoustic couple, consists of a stack of thin, spaced apart polymeric plates, selected ones of which include multiple bimetallic thermocouple junctions positioned along opposite end edges thereof. The thermocouple junctions are connected in series in the nature of a thermopile, and are arranged so as to be responsive to small temperature differences between the opposite edges of the plates. The magnitude of the temperature difference, as represented by the magnitude of the electrical potential difference generated by the thermopile, is found to be directly related to the level of acoustic power density in the gas.

Abstract: A level detecting device for detecting the level of liquid in a tank includes a displacer or float displaceable in response to the level of the liquid in the tank, an enclosure tube disposed on the tank and sealed thereagainst so that the exterior of the enclosure tube is isolated from the liquid in the tank and a variable transformer for detecting the displacement of the float. The transformer includes at least two windings disposed adjacent the outside of the enclosure tube and an elongate core disposed within the enclosure tube and coupled to the float so as to be movable therewith, the amount of magnetic coupling between the windings being dependent upon the position of the core in the enclosure tube. Means are provided for generating an output signal representing the amount of magnetic coupling between the windings to derive an indication of the level of the liquid in the tank.

Abstract: A temperature sensing unit produces an output signal commensurate with temperature, the output signal serving as a basis for discriminating a temperature above a predetermined threshold temperature as well as a rising temperature gradient over a predetermined period of time. When means for effecting the discrimination operation senses both conditions, a temperature measuring unit begins measuring temperature on the basis of an input from the temperature sensing unit. When said measurement begins, the measuring unit raises the resolution of temperature information from the sensing unit.

Abstract: An indicator in a grasping piece of a safety ski binding for indicating the setting of an adjustable operating characteristic of the grasping piece, including a window in a part of the grasping piece, a sliding indicator visible through the window and a flexible connection connected at one end to the operating characteristic adjusting means and at the opposite end to the sliding indicator to move the sliding indicator in response to adjustment of the operating characteristic.

Abstract: A dynamic feeler head comprising a central feeler pin and suitable particularly for being used in machine tools and measuring units in workshops, has definite tilting axes in the coordinate directions x and y and is subject to definite tilting forces, and ensures well reproducible measuring movements. The feeler pin 2 is tiltable in the coordinate directions x or y about axes, which extend in a common horizontal plane and are spaced from the pin always by the same distance. The tilting axes are embodied by hinges made of leaf springs, by which five plates extending one above the other are connected to each at their side edges.

Abstract: Instrumentation for sensing moisture content of material using a transient thermal pulse is comprised of a sensing probe (12) having a sensing element (14) in the form of a ribbon excited by a constant current pulse from a source (16) to increase the temperature, and therefore the resistance, of the ribbon linearly. Moisture in web material (10) will limit the increase of temperature during the pulse in proportion to the moisture content. This increase in temperature produces a proportional increase in resistivity which is measured with a Wheatstone bridge (R.sub.1, R.sub.2, R.sub.3, 14) as a change in voltage displayed by a measurement display unit (20). The probe (12) is glued in a shallow groove of a Lucite bar (15c) and connected to copper pins (15a, 15b) embedded in the bar. A cylindrical Lucite block (21) may be used to hold the sensing element (14) connected to axial pins (22a, 22b) in order for the probe to roll and thus reduce its wear.

Abstract: An apparatus for detecting the local temperature variations of an object and the sites of the temperature variations comprises,at least one temperature-sensing element formed of a band-shaped magnetic material having a prescribed Curie temperature;a pulse generator for supplying a pulse signal to at least one end of the temperature-sensing element;a pulse time difference detector for detecting a difference between a point of time at which the pulse signal is received and a point of time at which the reflected pulse signal of the pulse signal from the site of the temperature-sensing element where its characteristic impedance has changed is received; anda temperature variation site detector for determining a site of temperature variation from the detected pulse time difference.

Abstract: The apparatus materializing the method of determining the content of combustibles in the products of fuel combustion incorporates an oven with an electric heater connected into the load circuit of a controllable voltage source. The oven is provided with a pipe for introducing a sample of the end products of fuel combustion and with pipes for admitting an oxidizing agent and removing the end products of combustion of the combustibles. The sample is heated in the presence of the oxidizing agent to a temperature equal to or higher than the fire point of the combustibles present in the sample which, consequently, burn down. The temperature during the process of combustion is maintained constant with the aid of a temperature controller having its input connected to a temperature transducer located in the oven and its output connected to the output of the controllable voltage source.

Abstract: A service tool for a valve and visual low pressure indicating assembly for a pressurized container and particularly of a type adapted for operative association with a pneumatic vehicle tire, while being applicable generally to other containers enclosing a fluid under pressure. The pressure indicating valve and assembly serves as means for insertion, or removal, of fluid under pressure from the container, but further, and of substantial significance, serves to externally visually indicate a condition of low or diminished fluid pressure within a tire or other container. The new pressure indicating valve assembly constitutes a replacement for known valve structures and, due to an entirely different construction and operation, creates a need for the tool structure of the present invention, to implement and facilitate servicing of the novel pressure indicating valve structure assembly.

Abstract: A method and device for measuring the fluid level in a container. A column f fluid within the container is momentarily subjected to pressure, which causes the column of fluid to vibrate. The oscillation frequency is then measured. Since the frequency depends on the fluid level, the fluid level may be determined from the frequency of oscillation.

Abstract: The timing tool (10) includes a piston follower (12) slidingly mounted in the base (14) with its lower end (90) in contact with the top (76) of the piston (68) and its upper flat cap end (56) engaging the lock block (16). The lock block (16) slides on rods (18, 20) until top dead center of the piston is located. Thumb screw (30) is then rotated to lock the block in position. The piston (68) is then moved downwardly to form a gap (92) into which a feeler gauge is inserted. The piston is then moved upwardly into position at which the points open and the points are secured into position.

Abstract: A combined indicator and blocking assembly structured for mounting on the ground or surface within a designated parking space wherein the assembly includes a head portion selectively positionable upwardly from a base mounted on the surface of the parking space to the extent that the head portion and attendant supporting structure serves as a barrier in preventing unauthorized vehicles to enter the parking space. A sign or other indicator structure may be mounted on the interior surface of a lid element which is attached to the head portion and provided with proper informative indicia. The base is structured to house the head portion therein in a compact assembly when not in use, wherein the assembly has a height sufficient to pass underneath authorized vehicles parking in the space.

Abstract: A calorimeter for the measurement of a quantity of heat given up by a fluidic medium in at least one heat exchanger, with an impellerless flow velocity measuring device as well as temperature sensors for determining the forward flow-return flow temperature difference, including a multiplier for forming the product from the flow velocity and the forward flow-return flow temperature difference; and also a quantizer for the formation of a pulse train having a frequency which is proportional to the product, as well as a cumulative counting device for the pulses of the pulse train connected to the output thereof.

Abstract: A method and an apparatus for rating a thermometer probe, wherein the thermometer probe includes a small thermistor sensing element and a pair of conductors connected with the thermistor contacts and being supported upon a substrate. With the thermistor held at a particular temperature, the electrical resistance of the thermometer probe is measured and the difference between the resistance of that probe and a standard resistance is fed to a computer which operates a laser to encode a machine-readable character on the probe representative of the difference between the measured resistance of the probe and the standard resistance. In use, the probe is inserted in a readout and the readout senses the actual resistance of the thermometer probe which is dependent upon the temperature of the thermistor.

Abstract: A thermal probe permitting detection of the values of the "resultant" ambient temperature comprises a rigid supporting element made of heat-conductive material, a transducer rigidly attached to the support, in thermal contact with it, and an electric cable connected electrically to the said transducer. The support element has external characteristics as close as possible to those of a blackbody; for example, its outer surface is painted black. The transducer is placed on the inner surface of the support element, opposite the surface having the characteristics of a blackbody.

Abstract: An ultrasonic liquid quantity measuring apparatus directs a collimated beam of ultrasonic energy from a transmitter transducer (14) through a conveyor (15) into the liquid (11) in a container (10) perpendicular to the top liquid surface. The ultrasonic beam travels with little loss through a tube (20) connected to the conveyor (15) until it reaches the top liquid surface. At this time the energy is reflected and detected with a receiver transducer (14). A microprocessor (34) measures the total signal round trip travel time representing the height of the liquid (11). Using several ultrasonic transducers (14) and knowing the size and shape of the container (10) the quantity of liquid (11) in the container (10) is accurately determined. A calibration (known reflected signal time) transducer (14a) is used to compensate for the change in propagation velocity due to temperature change in the liquid (11).

Abstract: A container for pharmaceuticals and the like has a cap-like closure incorporating an indicator disk which is automatically indexed into successive indicating positions each time the container is used by removal and replacement of the closure. The container also has a manually operable rotary reminder wheel on its base. The disk may be used to indicate days of the week and the wheel to indicate hours of the day.

Abstract: This invention relates to an instrumented unit for measuring temperatures and heat flux in evaporative walls of steam generators composed of a series of parallel tubes comprising a temperature measurement device formed from a plurality of sensors extending fluid-tight from a support member and inserted non-forcibly into complementary curved seats of constant radius provided in the cross-section of one of the tubes, the support member being fixed in straddling relationship and comprising, for the sensors, seats which are fluid-tight against the tube.

Abstract: Safety device for quickly locating a drowning victim underwater which essentially includes a hollow cap member open at one end, a threaded spool inside the cap member and containing a water-soluble marking dye, a solid, water-soluble closure member which fits over the cap open end and is adhered to the cap member and may also be adhered to one end of the spool, and a safety pin or similar member to attach the device to a potential drowning victim, the free end of the thread extending outwardly from the cap member with its free end tied to the safety pin or other attaching member which in turn is joined to one of said cap and closure members.