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| Number | Title | Issue Date |
| 4080790 | Safety system for a steam turbine installation A steam turbine installation includes a safety system located in the steam flow path having a stop valve located in the steam flow path upstream of the turbine and a vacuum break valve located in the stream flow path downstream of the turbine, and a combi... | 03/28/1978 |
| 4078715 | Packing container A packing container formed from a blank of thermo-plastic coated paper or cardboard erected into a rectangular body and provided with a top closure established by a bellows folding technique which terminates in a folded-down fin that is held in place agai... | 03/14/1978 |
| 4077748 | Turbomachine plant comprising coupled gas turbine, synchronous electrical machine and compressor units having optional operating modes A turbomachine plant comprises a gas turbine, a synchronous electrical machine operable as a motor or generator, and a compressor all mounted on the same shafting and adapted to be coupled together for two optional operating modes. In a first operating mo... | 03/07/1978 |
| 4074795 | Caliper mounting arrangement for a disc brake Fluid pressure operated disc brakes of a vehicle of the kind having a stationary member adapted to be secured to a non-rotatable part of a wheel assembly, a movable member on the stationary member, fluid pressure operated brake actuator incorporated into ... | 02/21/1978 |
| 4074155 | Internally air cooled exciter-current lead-through bolt interconnecting rotor shaft-enclosed lead-in conductor bar and terminal conductor bar leading to rotor winding An exciter-current lead-through bolt which is passed through a radial bore in the rotor shaft of a dynamo-electric machine, especially a turbo-generator, and screwed into an exciter-current lead-in conductor bar which lies in a longitudinally extending bo... | 02/14/1978 |
| 4072838 | Electrical power switch with pressurized gas blasting device for lengthening the switching arc An electrical power switch operating with a pressurized gas for actuating the switch contacts and also providing a quenching action in which the arc is lengthened and extinguished includes a container in which the pressurized gas is stored, the outlet fro... | 02/07/1978 |
| 4072836 | Electrical switch with means for switching an auxiliary resistance into the circuit controlled thereby An electrical switch is provided with at least one set of stationary and movable main contacts for opening and closing the circuit controlled by it, and a set of stationary and movable auxiliary contacts for connecting a resistor in parallel with the main... | 02/07/1978 |
| 4072996 | Method and arrangement for arc quenching in arresters An electrical arrester includes one or more pairs of electrodes disposed within quenching chambers which form current-limiting quenched spark gaps connected in series with an associated blow-out coil for magnetically influencing the arc in the quenching c... | 02/07/1978 |
| 4071870 | Apparatus to generate minimally delayed instructions for turbine valves in the event of power system short circuits Apparatus for generating minimally delayed closing instructions for turbine valves of turbo-generator sets in the event of power system short circuits wherein major faults resulting in a drop in the system voltage are detected and act upon the valve means... | 01/31/1978 |
| 4068958 | Differentially bolted joint A differentially threaded bolting arrangement for bolting two machine parts together includes one or more bolts the opposite ends of which are provided with threaded sections differing in pitch, a threaded hole in one of the machine parts into which the b... | 01/17/1978 |
| 4065975 | Apparatus for measuring the slip of locomotive wheels and preventing sliding thereof Apparatus provided for measuring slippage of locomotive wheels and for preventing excessive sliding of the wheels and which produces a control signal for governing the locomotive speed uses as a basic criteria the variation in velocity between the transla... | 01/03/1978 |
| 4066100 | Control valve A control valve of the type wherein a valve member in the form of a piston moves axially within a piston guide cylinder located in a valve chamber. The valve chamber includes an inlet chamber, an outlet chamber, a valve seat area, and a main flow path and... | 01/03/1978 |
| 4066921 | Exciter-current lead-through bolt interconnecting rotor shaft-enclosed lead-in conductor bar and terminal conductor bar leading to rotor winding An exciter current lead-through bolt which is passed through a radial bore in the rotor shaft of a dynamo-electric machine, especially a turbo-generator, and screwed into an exciter-current lead-in conductor bar which lies in a longitudinally extending bo... | 01/03/1978 |
| 4062712 | Method for making a packing laminate A packing laminate for use in the manufacture of disposable packages consists of a relatively thin central layer made from high-density polyethylene, two intermediate foam layers of polystyrene applied respectively to opposite faces of the central layer b... | 12/13/1977 |
| 4063062 | Electron beam welding technique for joining two workpieces together In the preparation of plane or curved workpieces for welding together by means of an electron beam and wherein the weld takes the form of a full penetration joint, fusion lips are provided at the place where the lower welding bead forms. In the case where... | 12/13/1977 |
| 4060744 | Rotary electrical machine or vertical construction A support structure for the stator component of an electrical machine having a larger diameter, the rotor of which rotates about a vertical axis. The stator and foundation on which the stator rests form concentric inner and outer rings respectively joined... | 11/29/1977 |
| 4058974 | Combined gas/steam power plant with pressurized-gas generator A combined gas/steam power plant includes a gas turbine power set for delivering power such as for driving an electrical generator which comprises a combustion chamber, a gas turbine and a compressor driven by it, and a steam power plant comprising a stea... | 11/22/1977 |
| 4059723 | Apparatus for changing the direction of a three-phase pipe-type gas-pressurized electrical cable A direction-changing arrangement for a three-phase pipe-type gas-pressurized electrical cable constituted principally by rigid straight pipe lengths connected in series and wherein the axes of the three phase conductors supported within the pipe when view... | 11/22/1977 |
| 4057971 | Brush-type packing means for shield excavator A brush-type packing means for shield tunnel excavators which is high in wear resistance and shielding effect against underground water is provided. The packing means comprises at least two rows of resilient wire brushes secured substantially in parallel ... | 11/15/1977 |
| 4058072 | Extension table for sewing machines An extension table for attachment to a sewing machine head of the portable type for enlarging the somewhat limited working area provided by flat upper surface of the bed in which the bobbin mechanism is housed under the needle and presser foot wherein the... | 11/15/1977 |
| 4058237 | Portable self-protective device The present invention relates to a device for protecting a person from attack from an assailant wherein the device is worn on the person in such manner that it is always available for instant operation for defense without the necessity reaching into a poc... | 11/15/1977 |
| 4057957 | Alarm device of clocks An alarm device of clocks having snoozing function in which, when a set time is reached in clock mechanism, switching means for alarm sound source is actuated to be ON-state through an actuating lever by a set-time indexing wheel shifted on a shaft being ... | 11/15/1977 |
| 4056332 | Cooled turbine blade A turbine blade includes a longitudinally extending cavity into which air for cooling the interior wall of the blade is admitted. The air passes from the cavity through each of a group of inserts each of which is constituted by a plurality of stepped over... | 11/01/1977 |
| 4055887 | Method for producing a stabilized electrical superconductor A method of producing a stabilized electrical superconductor wherein a longitudinally extending slug is provided, the slug including a matrix such as bronze within which are embedded a multiplicity of wires or rods of a material such as niobium into which... | 11/01/1977 |
| 4055918 | Grinding machine A grinding machine with a movable grinding stand on a rigid frame structure where the grinding stand is rotatable on a cross travel carriage and steps are taken to prevent vibrations caused by the drive motor of the grinding wheel be propagated to the gri... | 11/01/1977 |
| 4055099 | Food slicer A foodstuff slicer which is particularly useful for shaving ice, frozen fruits and the like is disclosed. The foodstuff slicer is provided with a rotor composed of a downwardly diverging hood, a plurality of carrier-arms and a boss connected to a vertical... | 10/25/1977 |
| 4052859 | Method and apparatus of completing slurry shield tunneling at vertical shaft A method of completing a tunnel excavation with a slurry shield type tunneling machine through a soft ground having a high water content or much gushing water, advancing the machine from the ground into a vertical shaft at, for example, a tunnel terminati... | 10/11/1977 |
| 4050702 | Segmented sealing structure A packing ring for use between two surfaces to be sealed relative to each other is comprised of two ring components each of which is constituted by an assembly of ring segments which are provided with a projection at one end which engages a complementaril... | 09/27/1977 |
| 4051545 | Apparatus for overvoltage protection of a direct converter in the rotor circuit of an asynchronous machine Apparatus for overvoltage protection of a direct converter utilizing controllable semi-conductor valves and whose output is connected to the rotor circuit of an asynchronous electrical machine includes a stepped impedance circuit which is controlled by a ... | 09/27/1977 |
| 4050660 | Casing support for horizontal-axis casings expanding in operation A composite support structure for the casing of a rotary machine comprising coupled turbine and compressor units includes a pair of non-articulated multiple bar type pendulum supports upstanding on a support base at opposite sides of and secured to the ca... | 09/27/1977 |
| 4048733 | Device for use in removal of stumps At the end of a vehicle-carried crane arm a vertically extending frame is supported which at its lower end carries a movable split head with spreadable chopping blades. A ram raisable to the top of the frame drives, when released, by the impact on the spl... | 09/20/1977 |
| 4044561 | Steam turbine having bearing structures lubricated with steam condensate in recirculating system A steam turbine construction wherein the turbine rotor shafting is mounted in bearing means located in the end walls of the turbine housing and wherein the bearings are lubricated with water condensed from the working steam supplied to the turbine. The lu... | 08/30/1977 |
| 4044441 | Bearings A method of making bearing bushes by joining together a plurality of segments along joints parallel to the bearing axis. In the preferred method, two semicylindrical segments are used, and are joined by electron beam welding. The welding is the last opera... | 08/30/1977 |
| 4045242 | Process for the purification of sugarbeet juice and the reduction of lime salts therein A method for decalcifying raw sugar juice by the addition of active MgO to the final carbonation gassing vessel, carbonating to an alkalinity of about 0.01% CaO equivalent, and then re-alkalizing in a secondary reaction vessel with additional active MgO t... | 08/30/1977 |
| 4043120 | Starting arrangement for combined air and gas turbine power plant A gas-turbine plant of the air-storage type comprises a multi-stage gas-turbine having high and low pressure sections, a flow medium heating device located between the high and low pressure sections of the gas-turbine, a dynamoelectric machine coupled to ... | 08/23/1977 |
| 4043047 | Process and apparatus for the treatment of water-containing substances and application of this method for the preparation of pasteurized dried sludge A watery sludge is at least partially dehydrated by a heat treatment which includes an electrolytic heat treatment, and thereupon is subjected to a dielectric high-frequency treatment, with the result that the sludge is converted to a friable pasteurized ... | 08/23/1977 |
| 4043520 | Method and arrangement for registered splicing of a web of material while it is in motion A method and device for splicing a rotating new roll of material to a moving web which is nearly exhausted, each web having uniformly spaced indicia thereon and wherein the indicia on the new roll at the leading end thereof is unevenly spaced, the speed o... | 08/23/1977 |
| 4042290 | Lighting device An illuminating device contains an elongated support having a U-shaped cross section. Tubular incandescent lamps are provided inside said support. Each lamp is carried by two lamp holders. The support consists of two metallic sections, each having an L-sh... | 08/16/1977 |
| 4042199 | Molded furniture leg A hollow furniture leg molded from a thermosetting synthetic plastic is comprised of a central hollow core, an outer wall having an inverted frusto-conical configuration and a plurality of equally spaced reinforcing ribs interconnecting the core and outer... | 08/16/1977 |
| 4041713 | Method and apparatus for starting a tunneling machine from an initial placement within a vertical shaft sunk into the ground and provided with a starting port A method of and apparatus for starting a tunneling operation into a soft ground having a high water content or much gushing water while preventing any collapse of the ground or outflow of water. The tunneling machine is initially placed within a vertical ... | 08/16/1977 |
