Abstract: A circuit breaker which is remote controllable by an external remote control switch by way of an electronic control unit and an electromagnetic switch drive controlled by the electronic control unit. The switch drive switches the electric circuit by a switch lock, which is latched to it and which, during an overload, is unlatched and opened by way of the release of the bimetal of switch drive and, as a result, interrupts the electric circuit. During bimetal release, an auxiliary switch is actuated, which by way of the electronic control unit turns the remote control switch off and re-latches switch drive with the opened switch lock.

Abstract: A multi-caliber firearm includes a breech, a pull-out claw at least partially disposed within the breech, and an adapter piece which is adjustably attached to the breech and onto which is formed a bearing surface which is located radially opposite the pull-out claw. The pull-out claw is capable of selectively engaging a cartridge case having a cartridge base. The position of the adapter piece is adjustable to enable the breech to accommodate cartridge cases having different cartridge base diameters. The adjustment of the adapter piece may be performed via rotation of an adapter piece formed with a plurality of steps ascending in a circumferential direction of the adapter piece, of via rotating an adapter piece which is screwed into the threaded bore and which moves radially with rotation of the adapter piece.

Abstract: A push button actuated excess current protection switch, particularly an on-board electrical system protection switch with manual actuation and bimetal controlled automatic tripping includes a switch latch (7) actuated by the push button (41) and a bimetal tripping device for releasing the switch latch (7) with the bimetal tripping device including a self-heated approximately U-shaped punched bimetal (101) which is connected electrically in series in the current path through the switch. The one free arm end (102) of the bimetal is fastened to the end of a connecting lug (5) fixed in the interior of the switch housing. Its second free arm end (104) is fastened to a connecting piece (106, 106') leading to a mating contact (9') that is fixed to the housing. The base (114) is formed by the deflectable end of the bimetal which is kinematically connected with the switch latch.

Abstract: A fiber or yarn contacted element of a textile machine, such as a rotor of an open-end spinning machine or the like, has, at the fiber or yarn coating surface, a body portion of steel, a boronized layer formed on the body portion, an alpha-iron layer formed on the boronized layer and a nickel coating layer. A process for producing a fiber or yarn contacted element of a textile machine includes boronizing a steel body portion to form a boronized surface thereon, heating the steel body portion in an atmosphere including nitrogen to methanol to produce an alpha-iron layer, quenching and heating the steel body portion and applying a nickel coating thereto.

Abstract: A pistol includes a barrel for holding a cartridge. A breech is movably mounted on a grip piece and movable relative to the barrel. The breech has opposed first and second claws resiliently biased for supporting a cartridge base. An ejector is received by the breech so that in response to movement of the breech relative to the barrel, the second claw slides from the cartridge base and the first claw engages the cartridge base for pivoting the cartridge for ejection from the barrel. An interchangeable barrel release mechanism lowers an end of the barrel in response to rearward movement of the breech relative to the barrel.

Abstract: A push-button actuated overload protection switch, particularly an on-board protection switch having instant ON switching as well as manual, thermal and/or electromagnetic tripping. The switch has various components such as a switch housing, a pushbutton and an associated spring, a contact bridge and a toggle lever device, a detent lever and a detent pawl, as well as two switch rods, these parts being interconnected to obtain the desired switching function.

Abstract: A single pole or multi-pole, manually or thermally operable overload protective circuit breaker contains in its main switching chamber an elbow lever which consists of an actuating arm and a main contact arm, and functions as active connection between an actuating element and a contact bridge member. The ends of the actuating arm and the main contact arm, which face away from the elbow joint, are articulatedly connected with a pressure button or the like actuating element and the contact bridge member, respectively. In any positions of swivelling from a folded, i.e. the circuit-breaking, to a stretched, i.e., an arrested circuit making position, of the elbow lever, the centers of the swivel joints are located on the central longitudinal axis of the circuit breaker, which axis extends toward the depth of an insulating housing of the latter.

Abstract: Disclosed is an interchangeable barrel for small arms of the type having sliding breechblocks, comprising a housing with a guide surface inclined downwardly to the rear, for releasing the barrel during recoil. In order to mount the interchangeable barrel in the weapon without any play, the barrel has an adjustable spreading element which can be wedged against the declining guide surface of the weapon.

Abstract: An actuating fixture for use with a push-pull switch comprises a push-pull button through which a tightening screw extends axially, and a clamping tongs which can be closed by the screw. In its operational end position, the tongs grips an actuating head of the switch below an annular flange of the head. The push-pull button projects from a collar portion of a protective housing, and the collar portion and a casing of the switch bear external threadings which are both of the same type and diameter. The push-pull button is connected with the end of the protective housing facing toward the switch by means of an encasing hose of water-tight, flexible material. The actuating fixture has an internal threading which can be screwed on to the aforesaid external threading of the switch casing.

Abstract: A motor-pump aggregate whose pump is a glandless centrifugal pump and is intended for use in a nuclear reactor plant has hollow coaxial pump and motor shafts which are sealingly coupled to each other. To this end, the first end portion of the pump shaft extends into the adjacent first end portion of the motor shaft and has an external conical shoulder for engagement with an internal conical seat of the first end portion of the motor shaft. A feather holds the first end portions against rotation relative to one another, and the shoulder is urged against the seat by a pair of threaded connectors one of which is anchored in a disc-shaped member in the region of the second end portion of the motor shaft and the other of which is anchored in the first end portion of the pump shaft. The disc-shaped member and the second end portion of the motor shaft have mating ring gears to ensure accurate and a reproducible centering.

Abstract: An arrangement for automatically tracking systems to the center of weld gaps, weld joints or weld reinforcements, in which one or more electrically scanning probes receive signals reflected by a workpiece surface as long as this surface is substantially parallel to the acting surface of the probe. The signals breakdown spontaneously when the surface clearly deviates from the parallel as in the case with the flanks of gaps, joints or reinforcements. The breakdown of the signal is applied for storing an electrical value corresponding to the instantaneous probe position, the probe position for the left flank when traveling from left to right and for the right flank when traveling from right to left. The center of the gap, of the joint or of the reinforcement is computed from the stored electronic position values in a series-connected electronic device, by means of a computer circuit.

Abstract: An overload circuit breaker has a housing and a tripping device supported in the housing and having a helically wound, current-carrying bimetal strip composed of two face-to-face arranged metal components situated, respectively, at the inside and at the outside of the bimetal strip. The bimetal strip has a tripping portion which executes a tripping motion as the bimetal strip undergoes deformation under the effect of heat generated by an excess current flowing through the bimetal strip. The bimetal strip is formed of two electrically serially connected, oppositely wound bimetal helices each having an outer end constituting the opposite ends of the bimetal strip. The bimetal strip is affixed to the housing at both of its opposite ends. Further, the bimetal helices each have an inner end connected to one another by a coupling part. The coupling part constitutes the tripping portion of the bimetal strip.

Abstract: A multipole excess current switch composed of a plurality of single pole excess current switches each arranged to be placed in series in a respective circuit to be protected, each single pole switch including a U-shaped bimetallic member connected to conduct the current through such circuit and to undergo a change in shape when conducting an excess current, and a spring loaded switching arrangement arranged to open the switch in response to movement of the bimetallic member, and the switching arrangements of all of the single pole switches being mechanically connected to trigger operation of the spring loaded switching arrangements of the other single pole switches when one of the switches opens in response to an excess current through its associated circuit.

Abstract: A device for seizing and transporting a cover for the charge opening of a coking furnace comprises a seizure magnet carried by a gripping unit and adapted for rotation of the cover back and forth on the cover seat in the charge opening by means of a crank device connected with said gripping unit which in turn is suspended from a linkage means connecting said gripping unit with a slide arrangement for moving the magnet and the cover away from and into the furnace charging region, a force sensing overload safety device being connected with said linkage means in such a manner as to prevent operation of the slide arrangement when the force transmitted to said force sensing overload safety device by said gripping unit exceeds a predetermined value, thereby preventing damage in case of excessively strong adherence of the cover to its seat in the charge opening.

Abstract: Waste material is disposed of and its usable constituents recovered by feeding the waste material downwardly through a vertical shaft in which its temperature is progressively raised thereby driving off volatile matter and thermally degrading appropriate portions of the material to provide a gaseous discharge suitable for use as a fuel. Material such as metal and other non-volatilizable substances eventually reach a furnace chamber which has a temperature of at least 1600.degree. C where they are liquified and tapped from the chamber. The heavier metal component is tapped from a point lower than the point at which other liquid residues are tapped to enable the metal to be recycled.

Abstract: A device for magnetic lifting and removal of the feed opening cover of a coking chamber oven from the charging region of said oven comprises a magnet carried by a gripping unit and operatively connected with a crank drive for rotating said cover back and forth in said gripping unit, said magnet further being operatively connected with a displaceable slide means through the intermediary of a guide rail for guiding the movement of the slide means, the rail having horizontal and vertical branches, actuation of a drive means for said slide means first causes lifting of said cover and then lateral displacement of said slide means with said cover.

Abstract: Single-screw extruder for mixing viscous materials by dividing material in only the forward flow direction in an irregular sequence into a plurality of communicating flow paths which are subjected to constant change between being divided and rejoined. Extruder design can be varied by removable and interchangeable partial arcuate screw sections which are affixed to the body of the screw in the space between selected threads of a continuous screw thread.