Abstract: An automated open topped apparatus and improved method for cleaning soil from metal parts which employs a low vapor tension, low density, LVTC, liquid cleaner in a first tank and a high vapor tension, higher density, immiscible rinse, HVTR, liquid in a second tank and a rinse vapor zone above both tanks in the apparatus which provides steps and means for preventing rinse vapor loss during shut down periods by using microprocessor controlled steps that cause a layer of the liquid cleaner to be positioned atop and cover the liquid rinse in its tank and at the end of the idle period returns the liquid cleaner cover to the first tank and re-starts the cleaning process and thereafter monitors and controls cleaning operation until the succeeding shut down period.

Abstract: An automated open topped apparatus and improved method for cleaning soil from metal parts which employs a low vapor tension, low density, LVTC, liquid cleaner in a first tank and a high vapor tension, higher density, immiscible rinse, HVTR, liquid in a second tank and a rinse vapor zone above both tanks in the apparatus which provides steps and means for preventing rinse vapor loss during shut down periods by using microprocessor controlled steps that cause a layer of the liquid cleaner to be positioned atop and cover the liquid rinse in its tank and at the end of the idle period returns the liquid cleaner cover to the first tank and re-starts the cleaning process and thereafter monitors and controls cleaning operation until the succeeding shut down period.

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 continuous method of making a dual durometer self-locking, self-sealing plug for filling and sealing holes in panels. The plug is made from two different, chemically compatible thermoplastic materials by coinjection of the two molten components sequentially into a mold and cooling them concurrently to form the unitary plug.

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: The medium and liners of a water resistant containerboard are each essentially completely impregnated by a liquid water resistant agent which also uniformly coats the surfaces of the medium and liners with a layer sufficiently thick to cover the outer extremities of fibers protruding from such surfaces.The coating and impregnation is accomplished by feeding a flat untreated corrugated containerboard in the direction of its open flutes and in a continuous movement into and out of a hot melt bath of the water resistant agent at a controlled speed sufficient to force the liquid agent through the flutes of the containerboard, so as to assure exposure of all surface portions of the board to the hot melt for the same amount of time at the same temperature conditions.

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 dual durometer self-locking, self-sealing plug for filling and sealing holes in panels and a continuous method for making same is disclosed. The unitary plugs have the same shape as the opening to be filled and comprise a hard hole-filling, locking portion united with a softer sealing portion that is elastomeric and seals by 360.degree. contact with the inner periphery of the opening. The plug is made from two different, chemically compatible thermoplastic materials by coinjection of the two molten components sequentially into a mold and cooling them concurrently to form the unitary plug.

Abstract: The medium and liners of a water resistant containerboard are each essentially completely impregnated by a liquid water resistant agent which also uniformly coats the surfaces of the medium and liners with a layer sufficiently thick to cover the outer extremities of fibers protruding from such surfaces.The coating and impregnation is accomplished by feeding a flat untreated corrugated containerboard in the direction of its open flutes and in a continuous movement into and out of a hot melt bath of the water resistant agent at a controlled speed sufficient to force the liquid agent through the flutes of the containerboard, so as to assure exposure of all surface portions of the board to the hot melt for the same amount of time at the same temperature conditions.

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: 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.

Abstract: A cover of moulded plastics material for fitting to a pressed steel motor car wheel to simulate in a realistic manner a wire spoked wheel comprises two separate, but individually integral, injection mouldings 1, 2 of plastics material. The part 1 comprises an inner hub part 3, an inner rim part 5 and a series of spokes 8 extending between and integrally moulded with the parts 3 and 5. The other part 2 comprises a hub part 11, a rim part 12 and a series of spokes 15 extending between and integrally moulded with the parts 11 and 12. Owing to the moulding of the cover in two separate parts which fit together co-axially, it is possible to make the cover with the spokes 8 and 15 lying in a number of axially separated planes while still forming the moulds from the which the parts 1 and 2 are produced in such a way that there are no undercuts and the mouldings can easily be removed from the moulds.