Abstract: A probe for measuring temperatures in a hot gaseous medium such as the gases inside the shaft of a blast furnace. A first tubular member extends from a base structure such as a blast furnace wall into the gaseous medium. Successively smaller, second and third tubular members are concentrically positioned inside this exterior tubular member. Preferably, an exterior protective member also surrounds the first tubular member. A refractory material is interposed between the exterior protective member and the first tubular member to minimize temperature fluctuations in the body of the probe itself. Thermocouple leads extend longitudinally in an air space between the second and third tubular members and then protrude to the exterior of the probe. A forward fluid coolant passageway is formed inside the third tubular member.

Abstract: A calorific content analyzer for determining the calorific content of a combustible gas while compensating the analysis of the calorific content for fuel entrained oxygen. The gas is combusted to achieve substantially stoichiometric combustion by varying the air/fuel ratio supplied to a combustion chamber by a rotary valve which is speed controlled in response to a sensing of oxygen in the combustion products. A first measurement of the calorific content of the fuel gas is made using a normal operation of the analyzer and a second measurement is made using a known amount of air added by the rotary valve to the combustible gas stream. The true air/fuel ratio and the calorific content of the fuel gas is then computed using a predetermined relationship among the system variables.

Abstract: A stylus for stereo pickups tracking acoustic events mechanically recorded in grooves of a plate shaped record carrier comprises a soft iron tube which is adapted to embody a transducer and which has an open end into which a needle support tube is engaged and secured such as by adhesive connection. The needle is carried by the support with its axis substantially perpendicular to the axis of the support tube at the outward projecting end of the tube. The soft iron tube and the support tube are engaged in an opening of a support plate and embraced by a first elastic element engaged in the opening and elastically engaged with the soft iron tube. The construction includes a second elastic element engaged around a portion of the soft iron tube and the support tube at a location adjacent the open end of the soft iron tube and forms a damping body of a material of high internal friction.

Abstract: At an extremity of the pointer board of a push-button tuner is fixed a member on which a pointer is mounted. At a surface of the member on which the pointer is mounted. There is disposed a lateral fitting groove having an opening at the front surface. The fitting groove is provided with indentations. The pointer has a fitting portion engaging with the fitting groove on its back surface and the fitting portion has protrusion engaging with one of the indentations.

Abstract: Safety level gauge for liquified gas tanks, of simplified construction and adapted for mass-production, operated by an internal, small-sized drive system provided with a single vertically-moveable magnetic element moved by a slender rod which is guided in a tubular member carrying at the lower end thereof a fork-shaped member having pivoted thereto a cam which is connected to a rocker-arm provided with a float at the free end thereof, and an external graduated dial mounted on a suitably-adapted valve body, dial comprising a freely-rotatable central spindle with an indicating hand and a cross-shaped member incorporating a needle constituting a ferrous member which is magnetically affected an indirectly actuated by the internal element which is moved by the float and attendant drive system.

Abstract: An abrasion testing machine has a vibrating horizontal platform which supports a six pack of test specimens, such as beverage cans. Hydraulic cylinder controlled pressure plates are applied to the sides of the array of test specimens and to the top of the array as the specimens are vibrated. The amount of pressure is controllable by a control cylinder for each of the pressure cylinders and the speed and magnitude of vibration is adjustable by controlling motor speed and the position of an adjustable linkage between the motor and the platform.

Abstract: A temperature sensor has a series circuit of resistors, a gain control switch connected in parallel with one of the resistors of the series circuit, and a reference voltage control switch connected in parallel with a middle resistor of resistors of a reference voltage generation section. The reference voltage and the gain of an operational amplifier are variable so as to change the resolution of the output signal and/or a detected temperature range of the sensor.

Abstract: The underwater thermometer includes a transparent block, preferably formed of an acrylic plastic, having a planar rear surface provided with a longitudinal recess adapted to receive a fluid and tube type temperature indicator, with an enlargement at one end of the recess for receiving the bulb of the indicator. The indicator is adhesively attached to a foam pad, in turn adhesively secured to a flat, transparent layer, corresponding in shape to the planar rear surface of the block and adhered by a transparent adhesive, preferably an acrylic adhesive, to the rear surface of the block. The transparent layer is also provided, on its rear side, with one or more temperature scales and other indicia printed in reverse and visible through the transparent block, at least a portion of the front of which, such as the portion overlying the recess, is parallel to the planar rear surface.

Abstract: An adjustable bookmark for paperback and hard cover books including an integral non-stretchable member having an adjustable loop portion and a marker portion, the adjustable loop portion being adapted to fit around one cover of a book, adjustable loop defining member affixed to one end of the non-stretchable member and operatively engaging another portion of the non-stretchable member to define the adjustable loop portion, the remainder of the non-stretchable member extending from the adjustable loop defining member defining the marker portion, a decorative member attached to the marker portion at a position remote from the end of the adjustable loop portion so that when the size of the adjustable loop is adjusted by moving the adjustable loop defining member to fit tightly around one cover of book and the adjustable loop defining member is positioned adjacent the top of such a cover, the marker portion will extend downwardly from the adjustable loop defining member and may be positioned to mark a desired pag

Abstract: There is disclosed a tamper-indicating seal that permits in the field inspection and detection of tampering. Said seal comprises a shrinkable tube having a visible pattern of markings which is shrunk over the item to be sealed, and a second transparent tube, having a second visible marking pattern, which is shrunk over the item and the first tube. The relationship between the first and second set of markings produces a pattern so that the seal may not be removed without detection.

Abstract: An electronic clinical thermometer comprises oscillating circuitry for producing two oscillating output signals having respective frequency-temperature coefficients which are widely different from each other. A frequency dividing circuit frequency divides one of the two output signals to produce a gate timing signal which controls the gating of the other oscillating output signal to an up/down counter. A switch coacts with the frequency dividing circuit to enable selective changing of the frequency dividing ratio, and another switch coacts with the up/down counter to enable variable setting of the reference count value from which the counter begins to up-count the oscillating output signal to produce an output counter number indicative of the measured temperature. A display device is connected through a decoder driver circuit and a latch circuit to the up/down counter and displays indicia representative of the measured temperature.

Abstract: At a slot in a control panel of an automotive vehicle, the slot traversed by a slidable actuating lever for controlling the operating state of a heating and ventilating or air conditioning system of an automotive vehicle, an elongate web is disposed parallel and proximate to the slot for preventing the passage of light and dust. The web covers the slot, is attached at its ends to a control panel plate and traverses an opening in the lever.

Abstract: A meter for determining chill temperature and/or chill effect as a measure of comfort of an individual. This meter utilizes a sensor that is responsive to ambient temperature, wind velocity, humidity and/or solar effects. The sensor simulates a human body with normal covering for the prevailing real temperature, and electrical circuits are responsive to changes in effective temperatures due to these environmental factors. In one embodiment, the inner surface of the sensor is maintained at a selected constant temperature. The temperature associated therewith provides an error signal if a temperature differences is noted, this error signal causing current to flow to heat dissipaters to restore the select constant temperature. The amount of power required to maintain the selected temperature is a measure of the effect of the environmental factors and therefore relatable to chill temperature and/or chill effect.

Abstract: A cooling system monitoring assembly incorporating a heat generating element for simulating heat generation of components in the system, together with heat sensing element responsive to the heat generating element for providing temperature signals when the temperature of the heat generating element is sensed to have exceeded a predetermined threshold is described, thereby indicating the level of temperature fault. A support assembly is described for supporting the heat generating element in the heat transfer relationship to the monitored cooling system, while supporting the heat sensing element. A system for monitoring a plurality of subassemblies associated with the monitored cooling system and identifying the location of detected temperature fault condition is also described.

Abstract: A metallic bell-type alarm device for indicating the need for refueling or otherwise adjusting the heat generated within a wood stove or the like. The device is mounted on or adjacent to a stove at a location where it can respond to heat fluctuations in the stove. It comprises a metallic casing and base plate having mounted therein a bimetallic spring having a free-riding clapper washer mounted thereon and a trigger rod that cooperate to sound a bell alarm when significant temperature changes cause the spring to react to change position and strike the metal casing to sound a bell alarm.

Abstract: The thermometer mouthpiece device is for slidably and releasably engaging a thermometer for oral use. The mouthpiece device is for releasably holding a thermometer at a predetermined location so that the positioning of the device in the mouth of a user results in the proper extension of the thermometer bulb into the mouth cavity. The mouthpiece device is aerodynamic in construction to facilitate breathing by a user, and the device is resilient in composition to engage the teeth or gums of a user and to prevent breakage or fear of breakage of the thermometer. The aerodynamic mouthpiece device is comprised of a unitary, elongated and resilient body member having opposing tapered end portions. A ribbed center portion is circumferentially disposed about the device body intermediate the opposing tapered ends. A thermometer holding and securing means is provided to slidably engage a thermometer.

Abstract: A camera contains a row of diodes sensitive to infrared radiation and mounted on a turntable for rotation about the optical axis of the camera. The signals from the diodes provide a temperature profile of a band across the width of a strip of hot rolled steel moving in a direction orthogonal to the optical axis and to the length of the row of diodes. Since the diodes are low accuracy devices, their measurements are compensated by normalizing co-efficients derived by comparison with the signal provided by an optical pyrometer viewing the central part of the steel strip in the region of the optical axis. To enable all diodes to be calibrated, calibration is effected with the turntable rotated 90.degree. to align all the diodes with the central part of the strip as viewed by the pyrometer. The camera may be mounted on one arm of a C-frame having X-ray tubes in an arm and X-ray detectors in the other arm for the purpose of measuring the thickness profile of the strip in known way.

Abstract: A test assembly for determining the weldability of sheet metal includes (1) a base having a flat side surface with an annular groove in the side surface, a counterbore being formed in the outer wall of the groove and the surface portion of the base circumscribed by the inner wall of the groove being substantially coplanar with the bottom of the counterbore, (2) a test disk of sheet metal the periphery of which is positioned in the counterbore and the outer surface of which is coplanar with one side of the base, and (3) a clamp ring overlying the side surface of the base and the edge portion of the test disk and a plurality of clamp screws which extend through the clamp ring for holding the periphery of the test disk against the bottom of the counterbore.

Abstract: A snow scale/rate meter having a highly accurate weight sensing device enclosed in a thermally controlled environment. A clear plastic collection bucket is operably connected by means of an elongated shaft to the weight sensing device. In addition, a plurality of wind protection device surround the collection bucket as well as limit collected snowfall to snowfall having trajectories of 45.degree. or less from the vertical. Snowfall weight and rate data can be accurately provided by this meter over extremely short intervals of times during in-the-field operation.

Abstract: An apparatus for continuously measuring the heating power of a fuel gas comprises a calorimeter containing a vertical cell whose lower part accomodates a burner. The burner and the cell are respectively fed with fuel gas and with combustion air at a predetermined pressure and feed rate. The calorimeter has an external wall defining an annular vertical space with a wall of the cell. A dividing wall parallel to the external wall divides the annular space into concentric enclosures having a thickness which is small as compared with their length and circumferential size. The enclosures contain a same measurement gas and are operatively associated in a differential gas thermometer arrangement.