Abstract: A probe terminal for measuring the temperature inside of an enamelled reactor, for allowing a high speed of response to change in temperature and for detecting damage to the enamel of the reactor comprising a hollow cylindrical metal body provided at one end of a base in which is inserted and anchored, with enamel, a platinum cylinder hollow, the base of the platinum cylinder being unlined and in alignment with the enamel which coats the external surface of the hollow cylindrical metal body base, i.e., HCMB. One end of the HCMB contains the platinum cylinder. The other end of the HCMB is provided with means for attachment to the probe.

Abstract: A pair of resilient side-by-side elongated coils of different thermocouple material are mounted in a ceramic housing and project forwardly with their forward ends connected to form a thermocouple junction that is adapted to be pressed against a surface of which temperature is to be measured. A retractable protective sleeve is spring-urged to a forward position in which it extends beyond the end of the thermocouple housing and is retractable, when the probe is pressed against the surface, to a limit position in which the end of the ceramic thermocouple housing is maintained just clear of the surface, while the resilience of the thermocouple coils enables good contact of the junction and the surface.

Abstract: A thermocouple assembly wherein the transition fitting has a separable nose piece which may be brazed to the probe casing before the transition fitting is coupled thereto, thus avoiding the previous occuring spread of brazing heat through the body of the fitting such as might damage contained wires and their soldered connections.

Abstract: An improved heat sensing tip for a temperature sensing device is provided. The tip comprises an elongated shell of heat conductive material. A temperature probe is positioned for movement within the shell toward and away from an opening in the shell. A cap of heat conductive material is positioned at the front of the probe. A spring urges the cap in contact with the shell for heat conductivity between the two when the device is not in operation. When the device is in operation, the spring bias is overcome thereby providing an insulating air gap between the shell and the tip.

Abstract: A detector-transducer 26 for sensing temperatures in an engine is disclosed. A temperature signal generated by a temperature sensing device 28 is biased by a supplementary thermocouple 30. A resistor 52 is in series with the temperature sensing device. The supplementary thermocouple is in parallel with the resistor 52. In one embodiment the temperature sensing device is the junction of a second thermocouple.

Abstract: A fast response thermocouple probe is formed from two strips of different resilient thermocouple metals. The strips each have a bowed portion with the bowed portions overlapping and crossing each other at a spot welded junction point. The ends of each strip are connected together and engage a body member so that the bowed portions are spaced from the body. The strips are bent to form leaf springs thereby allowing for a resilient junction.

Abstract: The invention relates to a pyrometric rod for measuring the temperatures of molten glass.The rod according to the invention comprises a rod containing at least a thermocouple, this rod being provided with a short tip of metal or metal alloy, the tip being surmounted by a brace of refractory material.The pyrometric rod is applied to measuring temperatures of molten glass in a glass bath or in a channel.

Abstract: System for measuring the temperature of a gas by sampling, having a measurement probe with a certain permanent error. The system includes in addition two corrective probes placed in contact with said gas sample, one of the probes having essentially the same error as the measurement probe, the other probe having a double error. These three probes are advantageously thermocouples connected in opposition in a predetermined order so that the measurement error .DELTA.T obtained by the measurement probe in relation to the real temperature of the gases Tg is compensated for by those from the corrective probes.

Abstract: Disclosed is a passive, fast-response thermocouple probe for accurately measuring temperatures of fixed or moving areas of surfaces, particularly of lightweight, low-thermal-conductivity materials, with only a minimal modification of their temperatures being caused by the probe's contact therewith. In making the probe, an approximation of the areal heat capacity of the object, the surface temperature of which is to be obtained, is determined. This information is then utilized to determine the required thickness, density, specific heat, and thermal conductivity of the layer of insulating material which is mounted on the mounting block of the probe. A thin, low-areal-heat capacity thermocouple is positioned on the upper surface of the insulating layer, and a thin, low-areal-heat capacity cover film is mounted over the foregoing elements and extends partially down the sides of the mounting block.

Abstract: A temperature-sensing apparatus for a hand-held surface contact probe is disclosed wherein a hollow shank extends from a handle and a temperature-sensitive sensor means, such as a thermocouple, is mounted at the distal end of the shank. A ball and socket are provided at the end of the shank, the ball being secured to the end of the shank and the ball and socket having closely enveloping interengaging surfaces, each of high thermal conductivity. The conductors to the temperature sensor means are held in place by insulation which prevents the conductors from flexing so that they will not break due to such repeated flexing. The socket has a flat contact surface which is adapted to be pressed into contact with an object the temperature of which is to be measured and the heat flow path is from this contact surface through the interengaging surfaces of the ball and socket to the temperature sensor means.

Abstract: A probe of very low thermal mass and fast response for a digital electronic clinical thermometer using an extremely small temperature-responsive element with leads supported between coaxial tubular members. The temperature-responsive element, with adjacent lead portions is supported on at least one substantially hemispherical cup, also of low thermal mass adhered to the ends of the tubular members. Preferably a pair of hemispherically ended cups enclose a thermocouple junction and the associated lead portions, although a thermistor may also be used as the temperature-responsive element.

Abstract: A temperature monitoring and display system is used in conjunction with two or more low temperature sensors which produce output currents representative of the temperature being sensed. The currents produced are converted to voltages and applied through differential amplifier circuits to produce output analog signals representative of the sensed temperatures. These signals also are applied to a differential comparator which produces an output signal having a sign and magnitude representative of the difference in the sensed temperatures. A switch is used to select any one of the outputs of the first and second differential amplifiers or the comparator and to apply this output signal to an analog-to-digital converter, the outputs of which then are used to drive a suitable digital display.

Abstract: An apparatus for reducing the leakage current error from a resistance furnace includes a grounded electrically conductive member, an electrically insulating, thermally conductive member adjacent thereto, which thermally conductive member is contacted by a thermocouple junction.

Abstract: A microthermocouple member which comprises two wires of dissimilar materials joined together into a thermocouple junction, the wires having diameters of no more than about 75 microns. The wires and junction are carried by an elongated, thin support member, particularly surgical suture material, which is thin enough to be capable of insertion into living tissue without serious disruption of the local circulation. The support member preferably extends beyond the junction and wires, to permit grasping of the extending support member in a forward-slanted slot of a front-pointed stylet.

Abstract: A disposable thermocouple body is made from a lamination of flat paper plates. Sets of paper plates are of progressively increasing width up to the middle plate which supports a U-shaped thermocouple shield. The body is adapted to be mounted in one end of a lance for immersion into a molten metal bath.

Abstract: A thermoelectric temperature sensing apparatus in which the thermoelectric reference junction is not maintained at a constant temperature but instead heat is supplied to it or extracted from it at a predetermined, preferably constant, rate by a heater or cooler. The open circuit output voltage of the apparatus is referenced to this predetermined rate of heat supply or extraction to determine the temperature of the other thermoelectric junction. Where the heater or cooler is input responsive, the output voltage of the thermoelectric circuit is referenced to the heater or cooler input.

Abstract: A temperature sensing probe device having an elongated tubular handle or arm at the end of which a probe head member is mounted in a socket to provide limited universal movement and including a small flat ring-like surface to be positioned on and assuring excellent contact with the surface at which the temperature is to be determined, the head member being constructed of relatively thin material arranged as a composite assembly to reduce the mass thereof and assembled with thermal cementitious material.

Abstract: A device for continually sensing the temperature of an advancing glass ribbon has a thermocouple temperature sensing junction mounted within the area circumscribed by a pair of rotating wheels and spaced from the periphery of the wheels. The wheels engage the ribbon and are rotated thereby as the temperature sensing junction remains in a fixed position in a plane containing the rotating axis of the wheels and normal to the glass surface to continually sense the temperature of the advancing ribbon.