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| Number | Title | Issue Date |
| 4117712 | Emissimeter and method of measuring emissivity A method and apparatus for ready measurement of total hemispherical emissivity of a surface under ambient conditions, in situ. The apparatus, which may be readily made portable, comprises a heat sink to which is laminated a metal foil heater enclosed in a... | 10/03/1978 |
| 4117713 | Particulography as an on-line technique for detection and location of faults within a gas-cooled dynamoelectric machine caused by overheating An on-line apparatus and method of using particulography as a technique for detecting and locating overheated material such as insulation within a gas-cooled dynamoelectric machine is disclosed. This technique detects the presence of and identifies the or... | 10/03/1978 |
| 4117714 | Method and apparatus for continuously extracting trace contaminants from air and monitoring the contaminant content thereof Air that is desired to be examined for impurities is drawn through a concentrator comprising a cylindrical receptacle into which the air is introduced at the base portion of the receptacle in a direction tangentially of the cylindrical wall. A scrubbing l... | 10/03/1978 |
| 4117715 | Apparatus for measuring charge on, and density of, airborne particulates A simple, inexpensive, hand-held and operated apparatus for providing a substantially immediate indication of the density of, and charge on, airborne particulate contaminants of a predetermined size or within a predetermined size range includes a first fi... | 10/03/1978 |
| 4117716 | Densitometer apparatus A densitometer and sonic velocimeter are provided through use of a transducer to provide energy transductions and for providing vibratory energy. In this way, longitudinal wave energy can be imparted to the surrounding fluid. Indications from the transduc... | 10/03/1978 |
| 4117717 | Solid impurity detector A device is provided for detecting the presence of solid impurities within a pressurized fluid. The device comprises a housing having a fluid passageway formed therein. One end of the fluid passageway is open to the pressurized fluid, preferably via a res... | 10/03/1978 |
| 4117718 | Internal pressure and vacuum monitoring apparatus An apparatus and method for monitoring the internal pressure or vacuum in a sealed container is provided which measures the amount of deflection of a flexible wall of the container as a function of the internal pressure. The apparatus provides a first ele... | 10/03/1978 |
| 4117719 | Measuring friction bearings A force-measuring bearing, such as a measuring ball-and-socket joint, which includes inner and outer rings and a plurality of sliding disk bearing elements between the rings, with at least one of the sliding disk elements including a piezo-electric measur... | 10/03/1978 |
| 4117720 | Electric measuring device having a small-bore liquid container with improved electrode sealing means An electromagnetic flowmeter having a small-bore flow tube having a thick-walled plastic tube having a conically-relieved electrode-receiving bore. A compression ring around the conical part of the tube squeezes the plastic sealingly between the electrode... | 10/03/1978 |
| 4117721 | Magnetic flowmeter A magnetic flowmeter whose electromagnet is excited by a low-frequency excitation current having an a-c component and a d-c component, the flowmeter including flow tube electrodes yielding a flow rate signal. A reference-voltage detecting transformer is p... | 10/03/1978 |
| 4117722 | Measuring apparatus providing separate analog and digital outputs A capacitive integrator passes a current through a non-linearity compensating transistor, a thermistor, and an analog output amplifier and resistor so that the value of the current and the value of the voltage across the resistor are proportional to the t... | 10/03/1978 |
| 4117723 | Electronic thermometer An electronic thermometer has a bridge circuit and light emitting diode which is turned on instantaneously when the temperature being sensed causes activation of the light emitting diode, and a dial indicates the sensed temperature. The light emitting dio... | 10/03/1978 |
| 4117724 | Ambient pressure sensor An ambient pressure sensor generates an electrical signal which varies in response to changes in ambient pressure level. The sensor includes a sealed bellows or aneroid which varies in length as the ambient pressure varies. A fluid motor including a pisto... | 10/03/1978 |
| 4117725 | Fluid sampling system A system for sampling flue gases for a Klaus process controller by periodically capturing flue gas in a sample chamber with one side closed and the other side open, closing the other side, and only thereafter exposing the other side to a carrier fluid hav... | 10/03/1978 |
| 4117726 | Apparatus and method for sampling water for fish larvae and other trophic levels This invention obtains samples of fish life in the larvae and egg stage and shortly thereafter, plankton and similar marine life. By taking samples before and after water has passed through cooling facilities of electric generating plants along a river, s... | 10/03/1978 |
| 4117727 | Bubble sensor and method The bubble sensor is embodied in a liquid chromatographic system. In the exemplified system a sample conduit or loop which is already filled with liquid eluent communicates with the bore of a needle. The opening of the needle bore is immersed in a liquid ... | 10/03/1978 |
| 4117728 | Pipette A pipette capable of accurately picking up, mixing and dispensing liquids in predetermined ratios without instrument calibration is disclosed. The pipette apparatus has cooperable shoulder means for accurately regulating relative movement of the pipette p... | 10/03/1978 |
| 4117729 | Inertial measurement device An inertial measurement device comprising a rotatable member having a fluid-filled chamber closed by a resilient member responsive to the forces acting on the fluid and a modulator coupled to the resilient member to alter the radiation from a light source... | 10/03/1978 |
| 4117730 | Sensor system for releasing passive safety apparatus in car crashes A sensor system for the release of passive safety systems such as air cusns, belt tighteners or similar arrangements during car collisions is disclosed. The sensor system is designed to release the passive safety systems only within predetermined limits.... | 10/03/1978 |
| 4117731 | Pseudo continuous wave instrument A device for measuring acoustic properties and their changes in a sample of liquid, gas, plasma or solid. A variable frequency source is applied to the sample by means of a transducer to produce sound waves within the sample. The application of the variab... | 10/03/1978 |
| 4117732 | Method for checking thickness of sheet materials by using acoustic oscillation and device for effecting same Disclosure is made of a method for checking the thickness of sheet materials, whereby acoustic oscillation is sent in the form of a traveling wave through a material being checked roughly perpendicularly to its surface. The amplitude of the acoustic oscil... | 10/03/1978 |
| 4117733 | Test system carrier for ultrasonic testing of nozzle seams, pipe connection seams and nozzle corners in pressure vessels, particularly reactor pressure vessels of nuclear power plants Test system carrier for ultrasonic testing of pressure vessels, the carrier being supported at the end of a telescopic tube for executing stroke and rotary motions in or about the axis of a nozzle, the telescopic tube being adjustably mounted on the centr... | 10/03/1978 |
| 4117734 | Apparatus for indicating true furnace draft Apparatus for attachment to a furnace system for indicating furnace draft, comprising piezometric chamber means for indicating true average atmospheric pressure, connected by a small diameter pressure tube to an inclined tube draft manometer, the second e... | 10/03/1978 |
| 4117735 | Power wrench A power wrench having at least a partially annular drive head connected at first and second pivots through a first of a pair of telescopic members and to a third member, respectively, the third member being connected by a third pivot to the second member,... | 10/03/1978 |
| 4117736 | Variable stroke expansible energy conversion machine having static control means An expansible chamber energy conversion machine having a frame, a torque transmitting member supported by the frame for rotation about a first axis, a nutatable member having journal surfaces concentric with a second axis intersecting the first axis at an... | 10/03/1978 |
| 4117737 | Drive belt loading system A drive belt loading system for automatically loading and unloading a drive belt onto a pulley of a removable device employs a conical transfer means for automatically transferring the drive belt to the pulley upon tensioning of the belt. The transfer mea... | 10/03/1978 |
| 4117738 | Chain for engagement with double sprocket A chain for engagement with a double sprocket has alternate pin links and center, or bushing, links. The bushing links comprise a single center bar with two laterally extending bushings tightly received therein. The pin links have side bars parallel to th... | 10/03/1978 |
| 4117739 | Gear drives with direction of rotation reversal A uni-directionally rotated clutched driving gear having arcuate segments of gear teeth acts sequentially on two idler gears to effect a two-speed bi-directional rotation of a driven gear. The driven gear may be attached to the drive shaft of the characte... | 10/03/1978 |
| 4117740 | Multi-stroke throttle linkage mechanism A multi-position throttle mechanism is comprised of a link body having first and second servo devices secured thereto with the free end of the servo arm of one servo device connected to the engine frame and the free end of the arm of the other servo devic... | 10/03/1978 |
| 4117741 | Collapsible steering column A collapsible steering column system which allows for the forward movement of the steering column upon vehicle impact without movement of the gear box. The system includes a steering shaft housed within a steering column and a collapsible plate means posi... | 10/03/1978 |
| 4117742 | Permanent automatic rotor balancer for shafts operating above critical speed A pair of balancing weights are mounted on opposite sides of the center line of the rotor for movement about the axis of the rotor. The weights are automatically locked against movement about the axis of the rotor when the rotor is rotating below critical... | 10/03/1978 |
| 4117743 | Device for retaining two alternate positions An operation member slidably supported on a base plate has opposed pawls which are spaced apart and project toward one another. A position control cam and an integral supplementary cam are rotatably supported on the base between the two pawls. The pawls a... | 10/03/1978 |
| 4117744 | Transmission for crawler tractors A transmission for a crawler tractor includes a first cross-drive shaft arrangement including two separate sections with a forward/reverse bevel gear arrangement connecting the two sections to a drive input shaft so that each shaft section is capable of b... | 10/03/1978 |
| 4117745 | Torque converter and planetary gear set therefor A torque converter and a planetary gear set therefor, said planetary gear set having two sets of clutches wherein one element among a sun gear, a ring gear and a planetary carrier is connected directly to an input shaft, another element is connected direc... | 10/03/1978 |
| 4117746 | Orbital drive mechanism In a compact high-torque mechanical speed changer of the type in which different relative speeds may be realized through substitution of different cooperating planet and sun gear components one of which has teeth in the form of lobes of continuous substan... | 10/03/1978 |
| 4117747 | Electronic control system for automatic gearboxes An automatic gearbox has a planetary gear system and fluid pressure operated friction elements which are operable to act on the gear system to change the gear ratios thereof. Operation of the friction elements is controlled by electronic circuits on the b... | 10/03/1978 |
| 4117748 | Knife scabbard and sharpening device A sharpening device for knife scabbards, having a support block and two sharpening plates secured thereto. The plates project beyond an upper side of the support block so that respective broad surfaces of the two plates are in opposed and overlapping rela... | 10/03/1978 |
| 4117749 | Wire stripper An insulation stripper is described which is especially useful for shielded wire, the stripper including a first pair of jaws with blades extending substantially perpendicular to the axis of the wire, and a second pair of jaws with blades extending substa... | 10/03/1978 |
| 4117750 | Spindle assembly for a precision machine tool In the disclosed assembly, in accordance with the invention, there is provided a means for preventing drawing-in of air into the housing from ambient atmosphere through the labyrinth seal in the rear lid. The means includes a passage having its inlet comm... | 10/03/1978 |
| 4117751 | Apparatus for incising on a film the precise contour of a required image The invention relates to an apparatus for incising on a film to be processed the precise contour of a required photographic image so as to obtain a process block for prints in which such photographic image is to be inserted. The apparatus comprises a data... | 10/03/1978 |
