Abstract: A rail wheel has in one of its rim surfaces, preferably the inner one, a circumferential undercut groove. Vibration-damping elements are connected to the wheel by means of screws which either engage in the undercut groove via appropriately shaped heads, or are threaded into wedges lodged in the groove.

Abstract: The invention relates to an electric arc furnace having three electrodes arranged in a triangle and wherein the electrodes are held by parallel support arms for reducing electrode breakages. At least the support arm of the electrode most susceptible to breakage is provided with a resonance absorber whose natural frequency is tuned to the frequency of the support arm/electrode system for rocking vibrations in the plane of the support arm/electrode.

Abstract: In a vibration absorber for resonance vibrations of rotating bodies, in particular rail wheels, comprising several oscillatory plates which establish a damping mass; intermediate layers of damping material separating the plates from each other; a fastener connecting the plates with the rotating body at at least one point and an intermediate layer of damping material coupling the plates over a large remaining area to the rotating body the geometric dimensions of the plates and the intermediate layers and the Shore hardness of the damping material of the intermediate layers is selected such that all plates oscillate at a natural frequency of the rotating body to be damped, but with the amplitudes and phases of the vibrations of the individual plates differing in such a manner, with respect to one another, that the damping material is as strongly distorted as possible.

Abstract: A vibration damping device for a body resonant at two frequencies, is formed by a plate which can be connected to the body transversely with respect to its vibration direction. A post extends from the plate and mounts one end of an elastically flexible tongue which extends from the post substantially parallel to the plate so as to form a space between the tongue and plate. A weight is fixed to the other end of the tongue and vibration damping material is positioned in the space. The tongue and weight form a system resonant at both of the bodies' resonant frequencies, the tongue's energy being absorbed by the damping material.

Abstract: A system comprising a rail wheel and rail has the wheel and preferably also the rail provided with vibration dampers which absorb vibration having the frequency of the radial resonant vibration frequency of the wheel, for the purpose of preventing the formation of ripples in the rail head's surface on which the wheel runs.

Abstract: A vibration absorbing track wheel having one or more different natural frequencies. The wheel body has a wheel flange with one or more resonance absorbers on the wheel flange. Each resonance absorber comprises at least two tongues and an intermediate layer of damping material between each of the two adjacent tongues, and each tongue is turned to a different natural frequency of the wheel.

Abstract: An oscillation dampening system composed of masses, in which a spring and dampeners are clamped together and coupled to a railroad track to prevent the formation of ripples on the track. The system is tuned to the characteristic frequency of the railroad track and is coupled thereto to reduce the maximum amplitude of oscillation at the characteristic frequency and to shift the occurrence of other amplitudes of oscillation to frequencies away from the characteristic frequency and to reduce the amplitudes of oscillation at the shifted frequency. The maximum of the shifted amplitudes of oscillation is reduced by ten percent from the maximum at the characteristic frequency.

Abstract: A measuring wheel for the detection of vertical forces on the wheel when in operation, in which the wheel rim is provided with a plurality of recesses arranged in a circumferential direction adjacent to one another, the recesses being positioned so that webs are formed therebetween which extend transversely through the wheel rim from one side to the other. Detecting elements in the form of wire strain gauges are positioned within the recesses on the webs; these detecting elements are spaced from each other to detect the vertical forces transmitted between the wheel and the rail in the plane of the detecting elements. Additionally, the measuring wheel can be formed with the profile of a rail wheel or a wheel track, and when the measuring wheel has the profile of a wheel track, a separate wheel is used having the profile of a rail wheel.

Abstract: A wheel of lightweight construction useful as a wheel for a railroad car having a hub portion and a rim portion. The hub portion is connected to the rim portion by a pair of spaced apart opposed concavely shaped wheel discs positioned back-to-back. Each of the wheel discs has a main portion running between the hub and the rim. The main portion has integral therewith at each end thereof an arcuately shaped transitional portion which terminates in an edge. One of these transitional portions contiguously abuts and is affixed to one of two oppositely inclined flanks of the hub. The other of the transitional portions contiguously abuts and is affixed to one of two oppositely inclined flanks of the rim.

Abstract: A wheel set for a bogie of a track vehicle in which wheels are mounted non-rotatably on an axle mounted in bearings of the bogie. Substantially wide rubber elastic inserts for springing each of the wheels, have an arched axial-radial cross-section. The height of the arch in radial direction is small relative to the width of the arch. The insert is arranged, furthermore, between the wheel hub and the wheel rim in the proximity of the hub boring and extending substantially over the entire width of the wheel hub. The apex of the arched insert faces the hub boring.

Abstract: A rubber shock-absorbent track wheel in which annular grooves are provided on the ring of the wheel and on the rim of the wheel disc. The grooves are formed between shoulders, and a clearance space is defined between the grooves and the shoulder. Prestressed rubber plates located within the clearance space have plane areas when in the original state. The two annular grooves are turned to one another so that the height of the clearance space varies over its width, and the height of the clearance space is maximum at the centers of the grooves. The rubber plates are more prestressed at their outer areas than in the middle areas of the rubber plates when positioned between the base of the annular grooves of wheel disc and ring.