Abstract: Multiarc (multi-truss) retaining ring adapted for assembly in a circumferential groove provided for its reception on or in a carrier-member surface, such as that of a shaft, spindle and the like or a housing bore, thereupon to form an artificial machine-element (part) retaining and/or locating shoulder on or in said carrier member, the outer and inner edges of the ring body, rather than being continuous, each comprising the arcuate edges of a plurality of short-length circumferentially spaced-apart arcuate "beams," the inner-edge arcuate "beams" being staggered, i.e.

Abstract: The combination of a grooveless cylindrical shaft-form member and an open-ended friction-grip ring of the external form and of the general type disclosed in Heimann U.S. Pat. No. 2,574,034, dated Nov. 16, 1951, but which rather than being designed to grip the shaft surface on which it is assembled all around its arcuate inner edge, as per said Heimann patent, is instead provided with illustratively three inner-edge planar prongs whose inner ends or tips lie on a circle which is concentric with the circle of the outer-edge circle of the ring body and which is eccentric by a predetermined amount to the inner edge of said ring body, such eccentricity being in the direction of the ring ends. One said prong extends inwardly from the middle section of the ring body having maximum section height and two of said prongs extends inwardly from end sections of the ring body having minimum section height.

Abstract: A multi-coil helical spring-fastened assembly of first and second sub-assemblies of which one of said sub-assemblies has general housing-member form and the other sub-assembly has general shaft, rod or tube form and being dimensioned for ready insertion in the bore of said housing member; one of said sub-assemblies incorporating a multi-coil helical spring located between an integral shoulder thereof and an artificial shoulder, i.e. a groove-seated spring retaining ring; said helical spring being in torsion responsive to the sub-assemblies being assembled by insertion of one into the bore of the other whereby each of the multi-coils of the spring exerts a gripping force in radial direction on the housing-bore surface, or conversely on the shaft, rod or tube outer surface.