Abstract: A merchandise display unit having a pair of spaced uprights connected to adjacent ends of parallel shoe members which extend normal to and terminate adjacent an upstanding side plate. Parallel clips are carried by the outer end of each shoe member with the inner surfaces of the clips having upstanding recesses therein which face each other. An inturned flange carried by each end of the side plate passes between the parallel clips and is provided with a laterally extending projection which snaps into the adjacent upstanding recess in the adjacent clip. The uprights are detachably connected to each other by a tie bar having channel-like end portions with lateral slots therein which engage T-shaped slots in the uprights.

Abstract: Apparatus for cleaning a cooling system having inlet and outlet ports for circulating a cleaning fluid. A cleaning solution is supplied to one port of the cooling system with the other port thereof communicating with a discharge conduit. Positive pressure and a negative pressure are created alternately in the discharge conduit to cause the cleaning solution to flow in opposite directions. One check valve in the discharge conduit permits flow only in response to the creation of positive pressure and another check valve permits flow only in response to the creation of negative pressure.

Abstract: A filter plate having a plate frame with filtrate discharge means covered by filter cloth adjacent the bottom of a filter cake chamber defined by recesses in the plate. A cam projects from the bottom of the filter cake chamber and is adapted to support the filter plate on a corresponding cam on an adjacent filter plate with the cam extending substantially to the level of the outer surface of the frame of the filter plate. An opening is provided in the filter cloth covering the plate frame for receiving the cam. A clamping ring surrounds the cam and the filter cloth adjacent thereto to form a seal therebetween. A washer-like member overlies the cam and a portion of the clamping ring and retains the clamping ring in place.

Abstract: The method of forming a product, such as an electrical connector, of two different metals wherein a recess is provided in one end of a first metal member for receiving one end of a second metal member of a smaller size. The assembled metal members are placed in a closed die and high pressure is applied to the outermost end of at least one of the metal members to impart relative movement of the metal members toward each other and cause flow of the metal together at the point of juncture with displacement of one metal in the other.

Abstract: An attractor element embodying a first and a second pliable leg connected at their forward ends to each other and to a fishing lure. The first leg extends outwardly and rearwardly from its forward end and then inwardly and terminates in a free end rearwardly of its forward end. The second leg extends outwardly and rearwardly from its forward end and away from the first leg and then inwardly around the free end of the first leg with the second leg being longer than the first leg and terminating in a free end rearwardly of the first leg.

Abstract: A multi-directional positioner for moving one element relative to another element wherein a socket in a housing receives a ball with a rotating fit with a portion of the ball projecting outwardly of the socket and being connected to one element and the housing being connected to the other element. An arcuate groove in the socket extends in a plane passing generally through the center of the ball and receives a piston which is pivotally connected to the adjacent side of the ball. An arcuate groove in the outer surface of the ball extends in a plane passing generally through the center of the ball and perpendicular to the groove in the socket and receives a piston which is pivotally connected to the adjacent portion of the housing. Fluid is introduced under pressure selectively into the arcuate grooves in the ball and the arcuate groove in the socket to impart relative movement between the ball and the housing.

Abstract: An endless traveling band screen formed of a plurality of screening elements is carried by endless, impermeable, flexible drive belts which extend along opposite sides of the traveling band screen adjacent the ends of the screening elements. The belts travel around upper and lower rotary members with sealing means interposed between adjacent screening elements, between the screening elements and the belts, and between the belts and adjacent walls of the screening unit.

Abstract: A system for augmenting the visual and radar characteristics of an airborne target wherein a light source is mounted within the confines of a target body and is adapted to emit a beam of light in at least one direction. A radar reflector is mounted within the confines of the target body forwardly of the light source, as viewed in the direction of travel of the light from the light source, with the radar reflector being substantially transparent to light and reflective to radar wavelengths.

Abstract: A detachable connector for attaching one end of an elongated member to the body of a fishing lure having an inwardly extending bore therein. The outer end of the bore terminates in a shoulder spaced from the adjacent surface of the body which has an elongated slot therein in communication with the bore. The inner end of the elongated member carries a lateral projection disposed to pass through said slot and into the bore while the projection is in a first position and to engage the shoulder upon rotation of the elongated member and the projection to a second position in the bore. A yoke member within the bore has a transverse member connected to spaced apart legs which engage the shoulder at opposite sides of the projection upon movement of the projection to said first position and enter said slot at opposite sides of the elongated member upon movement of the projection to said second position.

Abstract: Gelatinous and other sludge agglomerations resulting from the clarifications of raw water or waste water is removed from the bottom of settling receptacles, such as basins, ponds, lagoons and clarifiers where velocity is reduced to facilitate separation. The settled gelatinous sludge and other solids are removed from the receptacle by introducing streams of liquid into contact with the sludge so as to produce laminar flow toward a withdrawal point or points without disturbing the supernatant water or other fluid.

Abstract: Reaction products of phenol and hexamethylenetetramine act as methylene donors in rubber compounds containing acceptors such as free resorcinol or precondensed resorcinol-formaldehyde (RF) resins. The products of reaction between this methylene donor and various methylene acceptors produce excellent adhesion between the rubber compounds and reinforcing substrates. Reinforcement of the rubber compound is obtained and this donor does not cause degradation of polyester cord used as a reinforcing substrate.

Abstract: A portable windshield for a riding type golf cart embodying a transparent, flexible sheet extending across the forward end of the cart with the lower edge of the sheet being under a lower front portion of the cart and the upper edge of the sheet being over the front portion of the roof of the cart. Rigid rod-like members are carried by the lower and upper edges of the sheet and extend transversely of the cart under the lower front portion thereof and over the front portion of the roof thereof, respectively. Flexible members carried by the ends of the rod-like members are attachable to the cart.

Abstract: A cover for manhole structures embodying a metal portion constructed of high strength material and assembled to provide maximum strength with a minimum of weight. A concrete portion is carried by the metal portion with the weight of the concrete portion being so proportioned relative to the weight of the metal portion that the combined weight thereof provides a manhole cover of a predetermined minimum weight.

Abstract: An end platform side plate and the outer end of an adjacent shoe member for a merchandise display unit are detachably connected to each other by a removable, channel-like clip which slidably engages the inner surface of the side plate with one flange of the clip extending into and engaging an outwardly opening recess in the shoe member and the other flange of the clip engaging the inner surface of an upstanding bracket carried by the side plate.

Abstract: A device for supporting a ball container from a tennis racket embodying an elongated flexible member having a first portion formed integrally with a second portion. The first portion is of a length to surround a tennis ball container with the end thereof adjacent the second portion overlapping the free end of the first portion and detachably connected thereto. The second portion defines an extension of the first portion and is of a length to extend around the handle of a tennis racket positioned alongside a ball container secured within said first portion with the free end of the second portion terminating alongside the outer surface of said first portion and detachably connected thereto.