Abstract: A fin apparatus is transversely disposed beneath a wire to create a wave of positive pressure thereunder to urge a formed web off of the wire. The fin surface, in transverse cross-section, is a smooth convex curve that diminishes in radius toward the downstream end of the fin.

Abstract: In a tissue paper making machine, a method for dewatering a tissue web without wet pressing and transferring the web onto a flow through drying cylinder including conducting a tissue web onto a pick-up fabric formed of felt and dewatering the web, without wet pressing, into the pick-up felt through the application of suction and capillary forces until the web has sufficient dry matter content to be passed to a flow through drying cylinder. The web is transferred to a flow through wire which passes over the web carrying pick-up felt at a suction roller by the application of suction over a narrow zone, the web being secured to the flow through wire by the application of additional suction over a broader suction zone.

Abstract: A power supply control system suitable for controlling and protecting batteries used in such systems by causing the automatic disconnection of the battery from a load when either the battery voltage has dropped to a preset level or when the load has open circuited. Disconnection of the load ensures that the battery does not undergo any further discharge (except self discharge) and the load can only be reconnected to the battery when a main supply (charging means) is reapplied and removed again or by use of additional circuitry from an external switch, and then only when load is present and battery voltage is above the preset level.

Abstract: The apparatus proposed herein relates to mass-exchange apparatus for isolating polymers from hydrocarbon solutions. The apparatus comprises a vertical column provided with a device for producing polymer crumb and an aqueous suspension, a device for feeding live steam, and contact trays which divide the column into compartments as for height. The device for producing polymer crumb and aqueous suspension is accommodated in the top portion of the vertical column and is essentially a chamber established on at least one side by the overflow baffle. The chamber accommodates the water supply nozzle and a conventional injector-type polymer crumb former. Such an arrangement of the device for polymer crumb formation and producing aqueous suspension results in a simplified construction of the entire apparatus and diminished overall dimensions thereof, as well as to a simpler attendance of the apparatus.

Abstract: In a paper making machine, a method and apparatus for separating the web from the former wire and transferring the same to a transfer felt which preferably comprises a press felt wherein the web is carried by the former wire over a sector of a reverser roll so that it is subjected to a centrifugal force which tends to separate the web from the former wire and wherein the transfer felt is guided so that it engages the web over at least a portion of the sector of the reverser roll lapped by the web carrying former wire. An external suction is applied to the web through the transfer felt in the region of the sector of the reverser roll lapped by the web carrying former wire and engaged transfer felt which subjects the web to a suction force which acts in substantially the same direction as the centrifugal force.

Abstract: A method for producing trigger pulses in relation to a preset phase of motion proceeding with a continuously variable period, whereby pulses are accumulated, and at the same time two time intervals are successively determined within the fundamental time interval as the phase of the motion is changed by a preset value. The durations of these two time intervals and the sign of the difference between them are used to correct the number of stored pulses which are counted until a preset number is reached, which moment marks the onset of a trigger pulse. The device for effecting this method comprises a unit for determining the difference between time intervals and correcting the fundamental time interval, which is connected to a control unit, a main pulse counter and a main controlled frequency divider connected, in turn, to a pulse generator. The control unit is connected to a control pulse unit and an initial adjustment unit.

Abstract: The invention relates to growing single crystals from melt. The disclosed apparatus includes a sealed chamber accommodating a crucible with the melt, the crucible being operatively connected with a drive effecting its rotation, a heater with thermal insulation means enclosing the crucible and a rod arranged coaxially with the crucible and carrying a seed holder, the rod being operatively connected with its own drive effecting its rotation and vertical displacement. In accordance with the invention, the operative connection between the crucible and its drive includes a support ring accommodated in the chamber and supporting thereon the crucible for their joint rotation during the crystal-pulling operation.

Abstract: A clutch mechanism for use in rotationally operable devices, for example a window raising and lowering system of a vehicle, allows rotation in either direction when operated properly by means of a specially provided shaft, but prevents rotation if unauthorized attempts are made, for example to lower or raise the window. The shaft is connected to two or more lugs which on rotation co-act with respective wedge elements located in respective recesses at the periphery of a rotatable disc so that drive is transferred from the lugs to rotate the disc. At least one lug and associated wedge element is mounted in the same sequence in each circumferential direction around the disc so that the disc can be rotated in either direction.

Abstract: A heat exchanging element for use in a rotary-type counter-current heat exchanger is provided. The heat exchanging element comprises a gathering member composed of natural fiber, especially coconut fiber. And a rotary-type counter-current heat exchanger is provided. The heat exchanger comprises a casing, a rotary frame rotatably supported by the casing, the rotary frame having a shaft, a pair of rotor rims maintaining a predetermined distance in an axial direction of the shaft and a plurality of rotor spokes, and the heat exchanging element accommodated in the rotary frame.

Abstract: The hereinproposed solar power unit comprises a solar energy collector made up of mirror facets and a solar energy receiver. A sun-light-sensitive surface of the receiver is exposed to a radiation flux reflected by the collector. Each facet of the collector is hermetically enclosed in a radiation-transparent convex shell filled with a reducing agent. The shells have a radius of curvature of 20 to 200 mm.

Abstract: Methods for purposes such as obtaining information pertaining to human beings or other animals having body cavities wherein fluids from which desired information can be derived are at least temporarily present. A means for collecting a body fluid is introduced into the body cavity and left therein for a time sufficient to provide for collection of a quantity of fluid suitable, for example, for subsequent analysis. The fluid collected by the collecting means is enclosed in an enclosure which can then be transmitted to a laboratory or the like for subsequent analysis of the fluid.

Abstract: A method of recovering the thermal energy contained in the pressurized steam utilized during the production of thermomechanical pulp. The steam is applied to the primary side of a heat exchanger with water supplied to the secondary side in order to produce hot water. The water is vaporized to produce clean steam. The clean steam is then utilized to at least a first steam group of the drying sections of a paper manufacturing machine without increasing the pressure of the clean steam.

Abstract: The invention relates to a structure for sea-bed exploitation allowing the various functions inherent in such exploitation to be performed, such as for example production, reconditioning and maintenance of underwater well-heads, wherein said structure comprises at least one articulated column performing one or several said functions. In particular, each well-head is accessible through servicing means, such as a movable tool secured to and jointly movable with a support pivotally connected to a carriage movable along guide-rails mounted either within or outside the horizontal apparent contour of the body of the column.

Abstract: A device for converting the intensity of a magnetic or an electromagnetic field into an electric signal wherein movable elements are made as ferromagnetic plates rigidly fixed in supports so that their free ends overlap each other. Mounted on the deformation section in the immediate vicinity to the place where the ferromagnetic plate is fixed in its support is an element sensing the displacements of the free ends of the plates with respect to each other. The sensing element is made as at least one resistance strain gauge connected to a measuring circuit.

Abstract: A method of handling appliances on a sea bottom for the operation and maintenance of well heads in off-shore oil field or other working plants making use of an articulated column resting on the sea bed substantially about the site of said appliances or well heads, wherein the improvement consists in the use of at least one tubular elongated structure extending along said column in parallel relation to the axis thereof, the inside of said structure serving the purpose of guiding said appliances and related means cooperating therewith and also of forming a passage-way for the remote control cables and other transmission or connecting means in particular for operating the well heads.

Abstract: At least a pair of separate cushioning members are interconnected by an overlying face of a cover and disposed side by side at the side regions, border strips are secured each along one of their edges to a corresponding inner skin overlying one main face of a cushioning member, at the opposite main faces corresponding cover sheets are secured at the other edges of the border strips; the interconnecting cover overlies the inner skins and is secured along its periphery to them and to the first-mentioned edges of the border strips.The method includes joining two border strips each to one edge of an inner skin, drawing them round a cushioning member and securing a cover sheet to each, over laying an additional cover sheet over both skins and securing it peripherally to them and the adjacent edges of the border strips forming two pouches one to both sides of a hingeable fold zone of the overlying cover sheet.

Abstract: This invention relates to a nut including a resilient skirt portion generally frusto-conical in shape the wall of which comprises an external circular rib preventing the skirt portion from turning up after a member is fastened against a threaded element by the nut.

Abstract: In the plant for collecting and briquetting domestic waste the housing has loading and discharge openings and coaxially accommodates therein a chamber for forming domestic waste into briquettes and a conveyer screw for compacting the domestic waste, operatively connected to a reversible drive. The chamber adjoins the screw and has mounted therein an abutment spanning the cross-sectional area of the chamber. The abutment is mounted in the chamber for motion therein under the action of the domestic waste being formed into a briquette and being advanced by the effort of the rotating conveyer screw. The chamber is operatively connected with a drive for being moved axially to release a briquette that has been formed and for being returned into the initial position.

Abstract: Properties of mechanical paper pulp which is produced by grinding or otherwise frictionally acting on natural fibrous raw material containing plasticizable constituents which become heated to a temperature sufficiently high to soften the plasticizable constituents thereof are improved by the addition of paper filler material which is chemically inert to the pulp at a time which results in the filler being in contact therewith while the plasticizable constituents are plasticized and thus softened and sticky. This causes the filler, without chemical reaction, to adhere to the plasticized constituents and thus to the fibers of the pulp to result in improved properties of a totally mechanical pulp. The properties which are improved include the optical and printing properties of the paper made from the pulp.

Abstract: An apparatus for measuring parameters of work diagram of piston machines comprises, connected to one another, a current crankshaft rotation angle counter having inputs coupled, via a crankshaft angular position pulse former and a top dead center pulse former, to an angular mark sensor, and a decoder decoding top dead center signals. To the latter is coupled an input of a flip-flop of an analysis and control unit which also has a counter having an input coupled, via a main coincidence gate, to one of n pressure sensors in cylinders of piston machines, in accordance with the cylinder selected for indication, and a logical circuit having an input coupled to a reversible counter connected to a flip-flop. The apparatus also comprises a series circuit including a decoder for decoding bottom dead center signals coupled to the reversible counter and flip-flop, a cycle length counter and a main flip-flop coupled to the bottom dead center decoder and to an AND gate.