Abstract: A first stage of a two stage apparatus for separating floating paint spray particulates from a collection tank that receives the waterfall backdrop from a commercial paint spray booth has a vertically pivotal weir hinged to a weir box that receives the resulting watery sludge as the floating solids and surface water skim over the weir. A float is connected with the weir by a dog-leg rod to control the flow over the weir at a preselected rate in response to the level of sludge in the weir box, thereby to minimize the proportion of water in the sludge. The sludge is pumped from the weir box into an inlet at the lower end of a consolidator tank. A compressed air diffuser emits streams of minute air bubbles below the inlet gently carries the floating particulates to the water surface where they accumulate and are gradually forced upward as a mass above the surface by underlying particulates continually entering the accumulator. Water from the uppermost particulates drains back into the accumulator.

Abstract: The procedure heretofore of transporting industrial slings annually to and from the industrial site where the sling is used and a test facility for stress testing the sling, and the concomitant withdrawal of the sling from industrial use for a day or more, are avoided by mounting the stress testing equipment on a motorized vehicle to enable such testing at the industrial site.

Abstract: A cluster of miniature electric lights is arranged above a rigid stake, with the electric wiring for the cluster extending below said cluster and wrapped tightly to said stake by an adhesive tape to simulate a stem for a potted flower having a stamen simulated by the cluster of lights. The floral part of the plant is formed from one or more tufted wire chenilles, each sculptured along its length to provide a series of floral parts connected by reduced diameter nodes. Alternate nodes of each chenille are arranged along a retaining wire, such that each alternate node and the pair of floral parts connected thereby form a bight with the node at its base and with the retaining wire within each bight adjacent to the base. The retaining wire is wrapped snugly around the stem adjacent to and below the light cluster to secure the alternate nodes to the stem.

Abstract: A weldable abrasion resistant ceramic brick is formed with spaced recesses extending angularly into the brick to undercut a surface thereof and interlock with a weldable insert having angularly extending projections mating with and insertable into the recesses. Each recess may be defined by a wall inclined into the undercut for camming an aligned projection into the undercut. The insert and brick may be interlocked and thereafter welded to a substrate, or the insert may first be welded to the substrate and thereafter interlocked with the brick. The invention is particularly useful with comparatively thin abrasion resistant wear plates that heretofore could not be welded satisfactorily to a substrate.

Abstract: A support for a bicycle type seat provides a pair of brackets depending from the seat structure and clamped to opposite sides of a rigid block having a post receiving hole therethrough for freely receiving a seat supporting post. A sidewall of the post receiving hole is recessed to provide a pair of impact ridges extending parallel to the axis of the hole. Post clamping bolts are provided to screw through the block against a seat supporting post in the hole to force the post against the ridges and embed the same into the post, whereby a post within a wide range of diameters can be positively secured against rotation within the hole. A tubular reinforcement having an axially extending expansion slit may be forced axially into a tubular seat supporting post to prevent a collapse of the latter when forced against the impact ridges.

Abstract: An undeformed weldable insert is inserted into an undercut recess opening at an inner face of an abrasion resistant ceramic brick and thereafter deformed into the undercut and interlocked with the brick. The insert is then welded to a substrate either by inserting a welding rod through a small guide hole into the recess from the abrasion resisting outer surface of the brick and then into guided welding contact with the substrate through a hole in the insert, or by inserting the welding rod through a hole in the substrate opposite the insert. Alternatively the inner face of the brick is overlaid with a fluid hardenable plastic that fills and interlocks with the undercut recess to provide means for bolting or cementing the brick to a substrate to be protected.

Abstract: A one-piece multiple durometer molded plastic dust and moisture shield for a lubricated assembly comprises a bowl-shaped intermediate part of resiliently deformable plastic material axially spacing and intimately bonded to an annular reinforcing rim and an annular reinforcing base of hard, form-sustaining plastic material. The rim extends coaxially around the bowl mouth of the shield and is bonded to the axially adjacent portion to define one axial end of the shield dimensioned to interfit in sealing engagement with the part to be shielded. The annular base extends coaxially with an annular base liner of the resiliently deformable intermediate portion an defines the opposite axial end of the shield. The annular base liner comprises the base of the bowl-shaped intermediate portion and its central opening is dimensioned to effect an interference sealing fit with another part of the assembly to be shielded.

Abstract: A tool holder for a gun drill or reamer has internal and external cylindrical rear end pilot portions and a radial pilot flange for precisely connecting coaxially with a rotatable and axially moveable power source. A sleeve confined coaxially within the internal cylindrical portion has an axially extending flat spline surface for effecting driving engagement with a mating flat of a tool shank. A contractible conical split collet at the forward end of the holder coaxially clamps the tool shank when moved axially to a clamping position by means of a non-rotatable nut secured to the collet for cocking out of axial alignment therewith to assure precise coaxial clamping of the tool shaft. The nut is in screw threaded engagement with a rotatable and non-axially moveable collar provided with beveled gear teeth for rotation by a Jacobs type tool.

Abstract: An over-spindle quick-change assembly for releasably securing a tool holding adapter at an operative position with respect to a power rotatable shank spindle comprises a cylindrical sleeve sleeved over the tool holding end of the spindle. A collar rotatable on the sleeve has a threaded portion engageable with a nut on the adapter for screwing the nut and adapter to the operative position, whereat confronting annular surfaces of the nut and spindle end engage each other in sealing relationship. The sleeve is prevented from relative movement on the spindle by a set screw screwed radially into the spindle shank and having a reduced diameter extension confined within a radial hole in the sleeve. The threaded portion of the set screw is dimensioned to prevent its entry into the radial sleeve hole.

Abstract: A flat plate bipolar electrolytic cell frame unit has a plurality of connectors removably attachable to the centerboard. Anode and cathode plate supports or ribs have outer plate supporting edges and are cooperable with the connectors, when the latter are secured to the centerboard, to enable adjustment of the ribs to preselected positions whereat their edges define preselected planes, such that when the anode and cathode plates are subsequently welded to said edges and assembled with the connectors to the centerboard, the anode and cathode plates of adjacent bipolar cell units are parallel and closely spaced by a predetermined distance. The connectors are removably secured to the centerboard and the ribs are welded at their adjusted positions to their respective connectors. Thereafter the welded together connectors and ribs are removed from the centerboard to enable unencumbered welding of the anode and cathode plates to said edges of the anode and cathode ribs respectively.

Abstract: A power driven rotatable spindle is provided with a conical recess tapering inwardly from one end of the spindle to receive a mating conical shaft of a tool holding adapter at a coaxial operative position whereat the spindle and adapter are splined for rotation as a unit. The adapter is moved axially to and from the operative position by interengageable screw threaded portions of the adapter and collar, which latter is rotatable but not axially movable on the spindle.

Abstract: A bipolar electrolytic cell comprises a plurality of side-by-side cell units, each unit having parallel anode and cathode plates spaced by a centerboard and electrically connected by a bipolar connection comprising a plurality of copper rods extending through the centerboard and shielded at their opposite ends from electrolyte in the cell by protective covers projection welded to opposite sides of the centerboard. The cover for one end of each rod comprises a cup having the base of its opening shaped to conform closely to the one end and frictionally welded thereto.A plurality of similar spacer and ring assemblies are arranged over opposite sides of the centerboard. Each assembly comprises a spacer projection welded to an associated side of the centerboard and to the inner periphery of a ring extending around the spacer. The spacers at one side of the centerboard may comprise the protective covers at said one side.

Abstract: There is provided a method of inhibiting the development of human cancer cells by parenterally administering to human cancer patients lactate dehydrogenase obtained from a primate or anti-lactate dehydrogenase obtained from a mammal as a result of the parenteral administration of primate lactate dehydrogenase to said mammal, thus inhibiting the lactate dehydrogenase activity in the human cancer cells.

Abstract: A lamp assembly for automotive tail lamps or the like comprising a base member of a relatively soft elastomeric material, a connector of a relatively hard material adapted to be sealingly but releasably plugged into a cavity opening in one face of the base member, and a bulb socket of a relatively hard material adapted to be sealingly but releasably plugged into another cavity in the base opening in a face which is normal to the face in which the connector is received. A plurality of conductors extend in parallel fashion in the base member between the socket cavity and the connector cavity. The conductors make electrical connection at their one ends with contacts on the lower end of the socket and pass sealingly through a partition separating the two cavities where their other ends make electrical contact with terminals carried by the connector. The connector, base, and socket are effective to provide a moisture sealed lamp assembly with each assembly or reassembly.

Abstract: A seat adapted for use on a bicycle has a major rump supporting portion and a central sagittal portion adapted to underlie the perineum of the occupant. A cantilevered portion extends forwardly from the sagittal portion and has sides parallel to and spaced by the sagittal plane to facilitate orientation by the occupant of his position on the seat and to provide leverage for the thighs to facilitate readjustment of his position and balancing of himself and the vehicle. The major rump supporting portion terminates forwardly along a pair of complex curves extending laterally from the sagittal portion to the opposite forward edges of the major rump supporting portion, each curve conforming to the overlying physiological curve of the occupant between the buttock and the posterior portion of the thigh to provide uninterrupted support for the major forward portion of the buttock.

Abstract: A super-tough molded elastomeric chewable polyurethane toy for an animal. The toy may be shaped to simulate a dog bone and to make swallowing difficult when being chewed. It is also chemically inert in the animal's digestive system and is characterized by moderate hardness, resilient deformability, large tensile strength and resistance to shearing. It is generally slightly heavier than water, but may be foamed or impregnated with air to float. The toy also makes use of a unique property of polyurethane whereby a surface-migrating flavoring pleasing to the animal is mixed with the polyurethane composition while the latter is in a liquid phase prior to being molded to the desired shape. Thus as the flavoring is chewed off or otherwise dissipated from the exterior surface of the toy, the flavoring is continuously replenished.

Abstract: A super-tough molded elastomeric chewable polyurethane toy for an animal. The toy may be shaped to simulate a dog bone and to make swallowing difficult when being chewed. It is also chemically inert in the animal's digestive system and is characterized by moderate hardness, resilient deformability, large tensile strength and resistance to shearing. It is generally slightly heavier than water, but may be foamed or impregnated with air to float. The toy also makes use of a unique property of polyurethane whereby a surface-migrating flavoring pleasing to the animal is mixed with the polyurethane composition while the latter is in a liquid phase prior to being molded to the desired shape. Thus as the flavoring is chewed off or otherwise dissipated from the exterior surface of the toy, the flavoring is continuously replenished.

Abstract: A gravity switch comprises a dielectric and a cup-shaped conductor pressed together in telescoping relationship to provide a hermetically sealed enclosure for a brass ball contact member rollable axially therein for selectively making or breaking an electrical contact between the sidewalls of the cup-shaped conductor and a point contact with a second conductor extending through the dielectric. The diameter of the ball is only slightly less than the diameter of the enclosure and is more than half the axial distance between the closed end of the cup-shaped conductor and the point contact of the second conductor in order to constrain the ball movement and reduce contact bounce. The various contact surfaces of the switch are silver plated and thoroughly cleansed to optimize current flow and maximize switch life within the hermetically sealed enclosure.

Abstract: Torque limiting clamping and sealing means comprise a cylindrical unthreaded screw-thread engaging clamping member of elastomeric material screwed on a rigid screw threaded member at an interference fit. An annular abutment around the clamping member engages a stop fixed with respect to the rigid member at a predetermined limit of screw induced axial travel to effect said limit of travel. A thin, flexible annular sealing lip around the clamping member and spaced radially from the abutment sealingly engages a surface fixed with respect to the rigid member prior to said limit of axial travel.

Abstract: Torque limiting clamping means comprises a cylindrical unthreaded screw-thread engaging clamping member of elastomeric material screwed on a rigid screw threaded member at an interference fit. The interference fit, the pitch and dimensions of the screw thread, and the physical characteristics of the elastomeric material are preselected to enable deformation of the elastomeric material resiliently within its elastic limit into the thread groove of the rigid member to accommodate the interference fit and to cause screw induced relative axial movement of the members to a limit of axial travel, whereupon the elastomeric material flows axially across the screw thread to terminate the axial travel and to effect a resilient reaction against the screw thread which results in an axial clamping force and a radial thread-locking force against the thread predetermined by the maximum allowable torque.