Abstract: An applicator for installing a retaining ring into an external groove of a workpiece comprises a base plate forming a ramp. A forward end of the ramp includes a slot for receiving a groove workpiece. A groove locator is mounted on the base plate for movement between a locating position within the groove of the workpiece, and a retracted position. The groove locator is yieldably biased to its locating position. A pusher is mounted for sliding movement along the ramp for pushing a retaining ring forwardly into engagement with a cam face of the locator to cam the locator to its retracted position as the retaining ring enters the groove of the workpiece.

Abstract: The present invention relates to a method and apparatus for controlling the delivery of insoluble powders, such as metal powders, to a processing station, such as a rotatable drum for impact plating of the powder onto articles. The method includes providing separate supplies of water and a slurry of the metal powder. Water is delivered from the water supply through a fluid network to the rotatable drum in a pre-flushing operation for a first predetermined length of time. Upon stoppage of the pre-flush with water, the slurry is delivered to the drum through the fluid network for a second predetermined length of time sufficient to deliver a desired quantity of the powder to the drum. Upon stoppage of the slurry delivery, a post-flush with water supplied through the fluid network is undertaken for a third predetermined length of time to remove any residual slurry within the fluid network.

Abstract: A spring retaining ring of the type adapted for assembly within a groove provided therefor in a housing bore or on a shaft to form an artificial shoulder for axially locating a machine part in the bore or on the shaft. The spring comprises an open-ended ring body of spring material. The body includes opposite side surfaces, each surface including a generally radial shoulder-forming portion and a groove-seating portion which is inclined at an acute angle relative to the shoulder forming portion. Either of the groove-seating surface portions are adapted to engage a correspondingly inclined wall of the groove to take-up axial play of the machine part. The length of each groove seating surface portion is from 80% to 120% of the minimum groove penetration depth for the ring.

Abstract: A dispenser for split retaining rings includes a base, a bracket mounted on the base, a ring-retaining rail pivotably mounted to the bracket and a guide passage for a ring-removal tool. Lateral displacement of the rail is prevented by maintaining opposite sides of the rail in contact with stationary surfaces. The base is formed of a single piece of formed sheet metal and includes a bracket supporting platform and folded portions which prevent sagging of the platform. Frictional wear of the platform is prevented by a wear plate mounted thereatop. The ring-retaining portion of the rail is designed to accommodate a wide variety of retaining rings, including rings with and without a center prong. The dispenser is assembled at the time of manufacture with the rail permanently disposed with proper clearance above the guide passage.

Abstract: Apparatus to inhibit water pollution in surface treatment of metals, e.g., in coating base metal parts with an adherent coating of zinc, cadmium or similar protective metal by means of wet impact plating or electroplating, or in chromating or phosphating metal surfaces. A preferred embodiment relates to a wet impact plating process wherein the several solutions used in preparing the work, in plating it and in rinsing it are individually segregated after use and re-used in consecutive plating cycles so that release of ecologically objectionable effluent is eliminated and chemical and metal components fed into the process are conserved instead of being discarded after each plating cycle.

Abstract: A spring retaining ring adapted to self-lock, i.e., friction-grip, itself by spring force to a cylindrical surface such as that of a grooveless carrier member (shaft, rod, pin, etc.), the body of said ring being of novel design and incorporating means endowing it with the capability of being assembled on a grooveless cylindrical carrier member by either the radial or the more conventional axial assembly procedure, whichever is the more convenient.

Abstract: This invention relates to an improved system for preventing water pollution in surface treatment of metals, e.g., in coating base metal parts with an adherent coating of zinc, cadmium or similar protective metal by means of wet impact plating or electroplating, or in chromating or phosphating metal surfaces. A preferred embodiment relates to a wet impact plating process wherein the several solutions used in cleaning or otherwise preparing the work, in plating it and in rinsing it are individually segregated after use and re-used in consecutive plating cycles in a special manner such that release of ecologically objectionable effluent is eliminated and chemical and metal components fed into the process are conserved instead of being discarded after each plating cycle.

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: An assembly tool for closed, self-locking retaining rings includes an extensible and retractable, tubular, centering sleeve for centering the ring on a ram recessed relative to the sleeve. The sleeve is carried by a housing in telescoping relationship with the ram. One end of the sleeve is fashioned with a plurality of circumferentially spaced guide slots bounded by circumferentially spaced rigid guide and centering fingers that are operable to center the ring by engagement with the ring body and to pilot the tool by engagement with the member to which the ring is to be assembled. Adjustable stops may control the position of the ring in an assembly in axial relationship to the parts of the assembly.

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: Heat treating salt used as a bath in heat treating metal articles is reclaimed from the rinsing tank in a closed cycle by removing a portion of the salt-contaminated rinse water from the rinsing tank to an enclosed portion of the heat treating tank which serves as a water evaporation zone. There the salt-contaminated rinse water is evaporated by direct contact with the hot molten salt bath and the resulting steam, either as such or after condensation, is conducted back to the rinse tank where it serves to replenish the rinse water. The salt content of the contaminated rinse water which is left behind in the water evaporation zone becomes commingled there with the molten salt bath and is thus reclaimed.

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.

Abstract: A special-purpose spring retaining ring adapted to be sprung into a circumferential groove provided therefor in a shaft, post, housing and the like, thereupon to form an artificial shoulder thereon, comprising: an open-ended ring body provided by circumferentially spaced-apart middle and sidewardly disposed (wing) arcuate length-portions having section heights which decrease progressively from the mid-section of the middle arcuate length-portion to the open gap-defining ends of the ring body, spaced-apart upright queen-truss formations interposed between and connecting the opposite ends of said middle arcuate length-portion to the adjacently disposed ends of said sidewardly disposed arcuate length-portions, the open ends of said ring body being shaped as outwardly extending formations, the outer edge of the beams of said truss formations and the outer edges of said ring-end formations extending as arcs of one and the same circle struck from the center of the ring body.