Abstract: The invention relates to a rotationally symmetrical.sup.1 magnetic bearing cell (1) with a rotor (2) arranged to rotate about the central axis (10) of the cell (1) and having a shaft (4) and at least two axially magnetised permanent magnetic rings (5, 6, 30) fitted an axial distance apart on the shaft and with a stator (3) having pole components (12, 13, 16, 17) and two annular coils (14, 15) associated with the rotor end faces; to improve the radial rigidity without increasing active control complexity, it is proposed that pole components (26, 27, 38) of magnetically conductive material be provided for the peripheral regions of the two axially outer permanent magnet rings (5, 6 or 5, 30) to direct the magnetic flux generated by the annular coils (14, 15) into two substantially independent magnetic flux circuits (28, 29)..sup.1 Translator's: note The German text reads "aufgebautet". This is grammatically not correct. Instead the German text should read "aufgebaute".

Abstract: A solid-state laser has a rod-shaped laser medium with planar end faces and a pumping radiation source whose pumping radiation reaches the laser medium by means of an optical element arranged in a longitudinal configuration adjacent to a planar end face of the laser medium. The optical element is arranged in thermal contact with a cooling element and is optically dimensioned so as to result in a minimum diameter of the transverse mode profile within the laser resonator.

Abstract: The invention is directed to a safety filter for an ophthalmic therapeutic and/or diagnostic unit into which a laser beam is coupled for therapeutic purposes. The safety filter is optically dimensioned in such a way that no change in the focal intercept results when the filter is swung into the viewing beam path. The filter largely absorbs the particular laser wavelength.

Abstract: A cooling device for a pulsed laser includes a cooling circuit with a cooling medium whose volume is increased in the pulsed excitation process.

Abstract: The invention relates to a gas friction pump with a high vacuum (HV) area and a forevacuum area (FV) area; in order to avoid, on the pumping surfaces, the formation of solid materials when such pumps are used for chemical processes, it is proposed that the HV area and the FV area have different working temperatures, so that the temperature of the HV area is lower than the temperature of the FV area (FIG. 1).

Abstract: A laser cyclo-photocoagulation in the eye is monitored on-line by means of an ultrasonic biomicroscope, i.e., visual representations of the treated field, inclusive of the effects obtained in the tissue, are provided continuously on a display placed at the disposal of the attending doctor. The doctor decides, by means of the generated ultrasonic images, on the course of the further treatment. The choice is possible between different operating modes of the ultrasonic biomicroscope.

Abstract: An applicator for treatment of an elevated internal ocular pressure by means of laser radiation has a handpiece, which releasably surrounds a fiber optic light guide on its exit side end. A sleeve portion is releasably connected to the exit side end of the light guide, a condensing optical element being provided in the sleeve portion, optically dimensioned and arranged in the sleeve portion at a distance from the exit side end of the light guide such that the applied laser radiation can be focused in the ciliary body of the eye on contact of the sleeve portion with the surface of the eye.

Abstract: For defined ablation of a surface, successive partial regions of equal surface area are acted on by a radiation source, preferably a laser, through an optical system. The partial regions are smaller as regards surface area than the whole surface to be processed, so that the respective radiation source can be dimensioned in a less costly manner. Telescope optics with conical surfaces serve as optical systems suitable for this purpose.

Abstract: There is disclosed a magnetic bearing cell of rotationally symmetrical construction, which includes a rotor having two rotating permanent ring magnets and a stator having a damping disk that projects into a first gap between the permanent ring magnets of the rotor. In order to improve the radial stability of the cell an additional permanent ring magnet is secured to the shaft and is spaced apart from one of the rotating permanent ring magnets to define a second gap therebetween. A ring disk that is secured to the stator projects into the second gap, the ring disk carrying an axially magnetized stator permanent ring magnet in the vicinity of the rotating permanent ring magnets of the rotor.

Abstract: Disclosed is a combination bean cutter-windrower (10) which includes a cross bar (11) being attached to the bottom of windrower (2) and located just behind tine pickup reel (3) under roller (5) and conveyors (6) and (7). A plurality of shanks (12) are attached to cross bar (11) and extend therefrom, mostly forward and slightly downward to points below and ahead of pickup reel (3). The front ends of each shank (11) have a blade (14) extending generally horizontally outward therefrom to cut the plants just prior to the pickup reel (11) lifting them up. A pair of row dividers (15) are provided on the right and left sides of the machine. These dividers are hydraulically rotated to aid in separating the entangled vines without damaging the crop. Each divider (15) rests on a skid plate (19) and is disposed to ride in one of the two outer most furrows to separate the entangled vines of the two drill rows adjacent the furrows.

Abstract: Ornamental light mounting strip 10 having an elongated resilient base 11 and removably attached light socket holders 13. Light socket holders 13 have a first receiving channel 14 for receiving a typical light bulb and socket 17 and a second receiving channel 18 for receiving rib 12 attached to the elongated resilient base 11. The previously described second receiving channel 18 and rib 12 provide for adjustable attachment of the light socket holder 13 to the elongated base 11.

Abstract: An ice storage bin for the storage and delivery of fragmentary ice for use in an enclosed area. The ice storage bin has at least one ice rake assembly having an arm which pivots about a lower corner of the bin and supports rakes that serve to move the fragmentary ice contained in the bin toward a screw for discharge from the bin. A rake drive shaft provides the pivot axis about which the rake arm rotates. The rake arm contacts the ice in storage by the action of gravity so that the rakes dig into the ice. An additional rake arm assembly can be disposed on the opposite side of the bin or parallel to the first rake arm assembly to increase the capacity of the bin. The bin is formed from beams which can be premanufactured and readily placed in a standard storage container. Apparatus are provided for raising the ice rake arm from the surface of the ice to a vertical position during the filling of the ice bin.