Abstract: The invention relates to an actuating element for setting the aim mark of a telescopic sight. According to the invention, the actuating element is rotatably located on the telescopic sight in the form of a rotary knob and the aim mark is displaced in a vertical and/or horizontal direction by means of a mechanical actuator, when the rotary knob is turned. In addition, the rotational area of the rotary knob is restricted in both rotational directions by at least one working region stop. The rotary knob is detachably coupled to the mechanical actuator. The working region stop(s) can be deactivated, allowing the rotary knob to be turned beyond the working region stop in both directions. The actuating element can be switched between at least three different modes. In mode A, the rotary knob is coupled to the mechanical actuator and the working region stop is inactive.

Abstract: The invention relates to an operating element for adjusting the cross-hairs of a telescopic sight. The operating element is in the form of a rotating knob, arranged to rotate on the telescopic sight, whereby a rotation of the rotating knob adjusts the cross-hairs by means of an adjuster mechanism. The rotating knob comprises one or several index marks, by means of which one or more positions of the cross-hairs may be indexed. The one or several index element(s) is/are arranged in one or several recess(es) and may be displaced therein in the circumferential direction of the rotating knob. The index elements are furthermore coupled to the rotating knob in the recesses such as to be rotated with the rotating knob on a rotation of the same.

Abstract: The invention relates to an operating element adjusting the cross-hairs of a telescopic sight. The operating element is in the form of a rotating knob, arranged to rotate on the telescopic sight, whereby a rotation of the rotating knob adjusts the cross-hairs be means of an adjuster mechanism. The rotating knob comprises one or several index marks, by means of which one or more positions of the cross-hairs may be indexed. The one or several index element(s) is/are arranged in one or several recess(es) and may be displaced therein in the circumferential direction of the rotating knob. The index elements are furthermore coupled to the rotating knob in the recesses such as to be rotated with the rotating knob on a rotation of the same.

Abstract: The invention relates to an actuating element for setting the aim mark of a telescopic sight. According to the invention, the actuating element is rotatbly located on the telescopic sight in the form of a rotary knob and the aim mark is displaced in a vertical and/or horizontal direction by means of a mechanical actuator, when the rotary knob is turned. In addition, the rotational area of the rotary knob is restricted in both rotational directions by at least one working region stop. The rotary knob is detachably coupled to the mechanical actuator. The working region stop(s) can be deactivated, allowing the rotary knob to be turned beyond the working region stop in both directions. The actuating element can be switched between at least three different modes. In mode A, the rotary knob is coupled to the mechanical actuator and the working region stop is inactive.

Abstract: A central method is used to access a user identifier which denotes a user who is using or wishes to use an operating resource whose function is provided by an application program. The central method is used to store a configuration identifier for the user identifier, the configuration identifier being able to be used to carry out a configuration method.

Abstract: A thermal barrier which is interposed between the casing of a pump and the housing of a motor has a first section which resembles a spool and includes a first flange sealingly connected to the casing, a second flange sealingly connected to the housing and a hollow cylindrical core spacedly surrounding the pump shaft between the two flanges. The first section serves primarily or exclusively to establish a seal between the pump casing and the motor housing, and the thermal barrier has a second section which takes up stresses and further serves as a heat insulating and/or heat dissipating device. The second section is removably installed in the space between the two flanges of the first section and spacedly surrounds the core. The second section may be constituted by hollow cylindrical walls, one or more stacks of washers or rings, one or more annuli of parallel tubes, bars, rods, ribs or a combination of such elements.

Abstract: The passage in a wall which separates the interior of the housing of a glandless submersible motor pump from the surrounding atmosphere is normally sealed by an annular seat which is placed against the end face of a muff forming a detachable part of the wall, and by a temperature- and pressure-resistant ceramic sleeve which surrounds an elongated metallic conductor and normally bears against the seat owing to the pressure differential between the interior of the housing and the surrounding atmosphere. If the sleeve is destroyed, a normally confined plunger of the conductor bears directly against the seat to prevent escape of fluid from the pump housing. That end portion of the conductor which extends into the housing is surrounded by one or more layers of insulating tape and by a tubular sheath which is shrunk onto the tape and exhibits at least some thermal-shock-absorbing characteristics.

Abstract: A spool-shaped metallic heat barrier is inserted between the motor housing and the pump housing of a motor-pump assembly which conveys fluids at elevated temperatures. The flanges of the heat barrier abut against and are connected to the respective housings by means of bolts, and are rigidly secured to each other by several annuli of discrete heat dissipating ribs which are adjacent to the peripheries of the flanges. That flange which is adjacent to the motor housing can be formed with a peripheral groove the radially outermost portion of which receives a ring-shaped closure so that the inner portion of the groove forms an annular channel for reception of a stagnant or circulating liquid coolant.

Abstract: A glandless centrifugal pump and wet electric motor unit for use in fossil-fired power plants has a cover which is sealingly connected with one end of the main portion of the motor housing and contains one or more cyclone separators for solid impurities. Liquid to be relieved of solid impurities is fed into the cover by way of a tangential inlet and such liquid passes through a coarse-mesh sieve which intercepts large solid impurities before the thus filtered liquid reaches the cyclone separator or separators. The separator or separators admit cleaned liquid into a channel provided which is provided therefor in the housing of the motor. The smaller solid impurities accumulate in a chamber which can be cleaned by way of a sealable opening while the cover remains attached to the main portion of the housing.

Abstract: A pump assembly for circulation of liquid coolant in boiling water reactors has a thin-walled spherical pump body for an impeller which rotates about a vertical axis and an electric motor which drives the impeller and has an upright housing with a heat barrier at its upper end. The heat barrier has a thin-walled neck portion which surrounds the impeller shaft below an opening in the lower part of the pump body and a ring-shaped surface which is biased against a complementary surface of the pump body around the opening by several heat-expansible bolts which separably couple the housing to the pump body. The heat barrier has an annular air space surrounding the neck portion and being surrounded by an annulus of cooling ribs, an upper flange which abuts against the pump body and has one or more compartments for a circulating coolant, and a lower flange with one or more compartments for a circulating coolant.

Abstract: A glandless pump and wet motor unit for circulating water in a boiler has an axially movable shaft which is rotatable in a liquid-filled housing of the motor and carries a disk disposed between electromagnets which are energizable to produce an electromagnetic field serving to maintain the shaft through magnetic bearings in a selected axial position when the electromagnets are energized. At least one mechanical auxiliary thrust bearing is provided in the housing and becomes effective in response to deenergization of the electromagnets. The auxiliary bearing may be a Kingsbury bearing which is spaced apart from the electromagnetic thrust bearing, or the auxiliary bearing may include the disk which cooperates with adjacent surfaces of the electromagnets or with adjacent surfaces of the housing when the shaft is subjected to axial stresses while the electromagnets are deenergized.