Abstract: A small generator comprising a stator having slots on the inner circumferential surface thereof and generating windings wound on the slots, and a salient-pole type rotor freely rotating inside the stator, in which the stator has a plurality of recesses whose width is essentially the same as the width of openings of the slots and whose area is smaller than the area of the slots, provided at the same intervals as the circumferential intervals of the slots in the vicinity of the opening of the slots; the rotor has circular-arc shaped bulged portions formed outside a shaft hole on the rotor, and crimping portions whose width is smaller than the diameter of a shaft hole provided at the center of the bulged portions; the width of the magnetic path of the rotor winding portion is made more than twice as large as the minimum slot back length of the slots provided on the stator.

Abstract: A respirator with a breathing gas delivery unit having a variable delivery volume, with a breathing circuit having an inspiration branch and an expiration branch, and with a feed line for breathing gas. The feed line opens into the breathing circuit and is connected to a metering unit. Especially good mixing is achieved within the breathing circuit for high and low flow rates to be metered into the breathing circuit. The feed line has a branching point with a branch line, and the lines are connected to the inspiration branch and to the expiration branch such that the feeding in of breathing gas into the inspiration branch and/or into the expiration branch is made possible.

Abstract: The quality of a fuel-air mixture shall be evaluated by a process and a device during a phase of combustion, especially in a spark ignition engine, in order to make possible a low-emission, fuel-saving and knock-free operation. An electrical testing pulse P is sent for this purpose to the spark plug during the phase of combustion V following the ignition pulse Z. The effect of the actual fuel-air mixture of the combustion chamber on the testing pulse is detected and evaluated as an electrical variable.

Abstract: A heat-insulating lining on heat exchanger surfaces for reducing the heat flow at the cooling surfaces of a medium- or high-pressure heat exchanger, which comprises a tube-web-tube wall. Corrosion resistant fastening pins are arranged in a weld area on the webs of the cooling surface. A ceramic fiber material is arranged as a heatinsulating material on both sides of the webs up to the level of the outside of the tubes of the tube wall, and segments of a ceramic moleskin mat, which are held by fastening pins and fastening washers, are arranged above it on both sides. An expanded metal, which is protected by a refractory material with good corrosion resistance, is additionally arranged at one or both edge zones and at the locations of the joints of the moleskin mat segments.

Abstract: Curved inlet pipes, which themselves are assembled from at least two curved individual pipes, are provided in an exhaust manifold with sheet metal inlet pipes from the respective cylinder head outlet to a common exhaust gas outlet. As a result, the sum of the moments of resistance is substantially smaller, especially in the case of short, curved inlet pipes, which prolongs the service life of a sheet metal exhaust manifold.

Abstract: The present invention relates to realize a tectonic activity monitoring equipment providing apparatus and method to detect a feeble electromagnetic wave occurred by the tectonic activity with a high signal-to-noise ratio (S/N) and to predict earthquake and volcano eruption. The apparatus and the method for monitoring tectonic activity of the present invention comprises electromagnetic wave sensors and one or more of amplifiers for amplifying signals detected by the sensors. And an observation frequency for detecting electromagnetic wave occurred from tectonic activity is set to a frequency between a few tens Hz and 1 kHz so as to eliminate the influence of noises of a strong radiation power less than a few tens Hz and tropical thunder noises of more than 1 kHz of higher order modes propagating between the earth and the ionosphere.

Abstract: A folding device is provided for an automatic sewing machine for folding over at least two edge strips of a first fabric part. The edge strips extend at an angle to one another and the first fabric part will be sewn on a second fabric part. The device includes a support plate for the second fabric part, a folding plate movable in relation to the support plate for the first fabric part, and a carrier plate. The carrier plate is movable in relation to the support plate and the folding plate for a pressing plate that can be placed on the first fabric part. At least two folding slides are provided which are arranged at an angle in relation to one another and which are connected to a drive means each. The folding plate and the pressing plate have at least one edge strip each, whose angle is adjustable, and the angle of at least one of the folding slides is adjustable.

Abstract: An electron-microscope image viewing apparatus capable of measuring of a moving speed or a vibration frequency of an atomic structure, a magnetic structure, an electric structure or the like of a specimen even when the structure changes at a high rate.

Abstract: A process and a device for quickly switching over from the premixing operation to the diffusion operation in combustion chambers of a gas turbine upon the extinction of the premixing flame or upon the occurrence of a disturbance that may lead to the extinction of the premixing flame. A pilot gas line, into which a pilot gas control valve is inserted, branches off from the fuel gas supply line before the fuel gas valve. The fuel gas supply line branches into fuel supply lines for both combustion chambers after the fuel gas control valve with displacement measurement. The fuel supply to the diffusion gas line and to the premixing gas line is controlled by installing a quick switch-over valve each with servo valves in the branching fuel supply lines. The combustion chambers are monitored in the area of the flame tube by pressure-measuring devices and by an optical flame-monitoring device.

Abstract: Apparatus for feeding and tensioning threads in a textile machine including corresponding weaving members supplied with the threads. For each thread, a calander is provided with first and second superimposed wheels between which the thread, coming from a corresponding store located upstream of the apparatus, is made to pass. The wheels are mounted on corresponding parallel, horizontal shafts. A body for supporting the wheels is rotatively mounted on a corresponding body shaft having axis parallel to one of the wheels. The body itself is supported by a fixed bearing structure. A thread-holder arm of flexible and elastic material is provided with one end fixed to the body and the other end of the arm is provided with a thread-guiding ring through which the thread, coming from the calander (H), is made to pass.

Abstract: A method for the protection of in particular telecommunication installations against overvoltage and overcurrent by overvoltage arresters, PTC resistors and voltage-limiting components and to a protection circuit for carrying-out the method. The object of the invention, namely to develop a method and a circuit in particular for the protection of telecommunication installations against overvoltage and overcurrent that secures a surge-current resistant and reversible line protection, is achieved by the response voltage of the overvoltage arrester being higher than the peak value of a powersupply voltage, and that the response voltage of the thyristor diodes selected being slightly above the maximum operating voltage values of the line to be protected. The PTC resistors are used as a decoupling member to block the maximum amplitudes of the power supply voltage.

Abstract: A termination device for telecommunication and data transmission applications, comprising a carrier rail, a base element with a receiving opening and functional modules. Various termination tasks can be solved by the base element being latched or onto or held by the carrier rail. Receiving portions for a termination element for incoming cables and for a termination element for outgoing cables are provided in the base element. A functional module is disposed between the two termination elements.

Abstract: A black polyamide resin composition comprising a polyamide resin and coloring agents, wherein nigrosine, aniline black and carbon black are contained as the coloring agents.

Abstract: A chemical oxygen generator with a chemical mass, which is accommodated inside a container, generates oxygen by a chemical reaction, and is held in the container by a gas-permeable fibrous material. The fibrous material is arranged around the chemical mass. The fibrous material is designed as a chemical sorption filter.

Abstract: An air gap-insulated exhaust pipe with a sliding fit between two inner pipe sections in a middle area of the length of the exhaust pipe has a radial mounting of the inner pipe in the outer pipe which is provided in the area of a bend or beyond the bend, which joins the leg of the exhaust pipe in which the sliding fit is located. In terms of manufacturing technique, the radial mounting may be prepared before or after the bending of the double-pipe arrangement. The sliding fit may be prepared, even in the case of a straight exhaust pipe, manifold, or the like, by using a spacer sleeve and joint calibration of the pipe ends of the inner pipe sections, and the spacer sleeve burns off at the time the exhaust pipe is put into operation for the first time. As an alternative, the sliding fit may also be prepared by polygon calibration and rotating the pipe ends by half the pitch of the polygon.

Abstract: Data between two stations is often transmitted in the form of a parameter and the name or identifier of the parameter. The present invention divides the identifier into a prefix, an attribute, and a suffix. The actual parameters having a particular prefix or suffix are then transmitted along with the attributes. Then parameters having a different suffix but the same prefix are transmitted along with the respective attributes. This is repeated until all suffixes of the first prefix have been used. The process is then repeated for a different prefix. Indicators are used to indicate the start of a particular group having a particular suffix and a particular prefix. In this way the entire identifier for each parameter does not need to be transmitted each time a parameter is transmitted.

Abstract: A distribution block for telecommunication and data transmission applications, in particular for the main distribution frame of telephone and data lines. The distribution block includes insulation displacement contact elements for the connection of the subscriber cables as well as of the exchange office cables. One-piece contact springs are disposed in the interior of the modular-design distribution block. A mounting bracket, in particular for receiving distribution blocks is provided including a U-shaped tub. A device for guiding cables is rotatably moved in a partial section, and with cable guide portions. A reduction in size, an improvement of connection tasks, the individual protection of double wires, a reliable grounding and a cable guiding which is substantially resistant to buckling and bending are secured, is achieved by that one-piece contact springs disposed in the interior of distribution block.

Abstract: A melting vessel plant, in which the melting vessel is a converter vessel, to which a vessel cover with a pipe connection for removing the flue gases is attached. Either an oxygen lance with an auxiliary cover or electrodes with an auxiliary cover are introduced into the melting vessel through the vessel cover. The spherical melting vessel is lined with a lining. It is arranged on running rails as a traveling melting vessel, and it is mounted on an inner running rim and an outer running rim. The melting vessel is fastened to the inner running rim by support elements arranged on the circumference. Both running rims are interlocked by shear wedges. With the melting vessel locked, a cable winch with traction cables makes possible the tilting movements of the melting vessel both in the direction of steel tapping on the running rails and back into the upright position.

Abstract: The circuit for firing and supplying a discharge lamp, includes:a load circuit (10), with at least one discharge lamp (L) and a voltage supply for supplying a discharge lamp,a subportion of the circuit is in parallel with the lamp (L). This subportion includes at least one arrangement of capacitors (17, 21) and an inductive impedance which can be varied in a controllable manner in order to modify the value of the total impedance in parallel with the lamp.

Abstract: The invention provides an internal pollution preventing apparatus for a handpiece wherein a valve itself is small and compact and a housing is small in size and which is small in number of parts and superior in assembling facility, airtightness and economy.The apparatus has an air turbine drive air circuit A for supplying, when the handpiece operates, air of a comparatively high pressure via a valve 1, an exhaust air circuit D for exhausting air after having driven an air turbine of the handpiece, a chip air circuit B for supplying air for the atomization of cooling water via valves V1, V2, V3, V4 and V5, and a low pressure air feeding circuit E for feeding air turbine stopping and circuit internal pressure keeping air of a low pressure to the drive air circuit and the chip air circuit via further valves.