PLURAL AMPLITUDE VIBRATION ASSEMBLY

• Main Authors: KURT W. RICHTER, DAVID E. LABONTE, ROBERT F. GOEHLER
• Format: Patent
• Language: English
• Published: 12.03.1987
• Edition: 4
• Subjects: BLASTING; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE; ENGINEERING ELEMENTS AND UNITS; FIXED CONSTRUCTIONS; FOR PERFORMING MECHANICAL WORK IN GENERAL; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL; HEATING; LIGHTING; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY; PERFORMING OPERATIONS; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

In the embodiment shown, the assembly comprises a pair of apertured weights mounted on a rotatable shaft, each of the weights having abutment surfaces one or another pairs of which close upon each other, depending upon the direction of shaft rotation. One of the weights is keyed to the shaft to rotate therewith; the other weight is freely rotatable relative to the shaft. Upon rotation of the shaft in a first direction, a first pair of the abutment surfaces engage, and the eccentricities of the weights then are so disposed as to produce a given-amplitude vibratory force. Upon rotation of the shaft in a contrary direction, a second pair of the abutment surfaces engage, and the eccentricities of the weights then are so disposed as to produce a vibratory force of a differing amplitude.