Abstract: An oscillating device comprises a body support on which opposed open bearing-receiving members are located, so that support-bearing members secured to mounting members of legs that are pivotally mounted onto a base are disposed in the bearing-receiving members and springs are mounted on spring-supporting bearing members secured to the mounting members of the legs to maintain the legs in a substantially vertical rest position and to move the body support along an arcuate path when it is moved from the vertical position in an oscillating motion. The base is formed of parallel horizontal members that have front and rear sections to which bottom ends of front and rear legs are pivotally mounted thereby forming the base into front and rear halves. Structure is provided to maintain inner ends of the front and rear sections of the horizontal members in engagement including the springs when the base is assembled and during operating of the oscillating device and to enable the base to be readily disassembled.

Abstract: An oscillating device comprises a body support on which opposed open bearing-receiving members are located, so that support-bearing members secured to mounting members of legs that are pivotally mounted onto a base are disposed in the bearing-receiving members and springs are mounted on spring-supporting bearing members secured to the mounting members of the legs to maintain the legs in a substantially vertical rest position and to move the body support along an arcuate path when it is moved from the vertical position in an oscillating motion.

Abstract: An oscillating device comprises a body support on which opposed open bearings are located, the bearings are compliant and have self-lubricating bearing members secured therein so that bearing-engaging sections of legs that are pivotally mounted onto a base are disposed in the bearings in engagement with the self-lubricating bearing members and springs are mounted on spring-engaging members on arms of the legs to maintain the legs in a substantially vertical rest position and to move the body support along an arcuate path when it is moved from the vertical position in an oscillating motion.