Abstract: A white iron alloy exhibits enhanced combined corrosion and abrasion resistance in hot slurries, such as those formed in the production of raw phosphoric acid. The alloy may contain from between about 0.75% to 1.5% carbon, between about 2.0% to 2.5% manganese, between about 2.0 to 3.0% molybdenum, between about 1.0% to 2.0% copper, up to about 0.85% silicon, between about 0.5% to 1.0% tungsten, between about 24 to 30% chromium and the balance being iron along with normal residual elements. The alloy may be cast and is age hardenable.

Abstract: An improvement for an electrically powered appliance (1) having an "ON-OFF" switch (7) which must be manually maintained in the "ON" position. A locking mechanism (11) includes a lever (25) slidably coacting with a switch button (9). The lever moves from a first position to a second position as the button is manually moved from the "OFF" to the "ON" switch position. When the lever reaches its second position it blocks the button from returning to the "OFF" switch position when manual force is removed.

Abstract: This blow gun assembly (10) includes a blow gun (12) which includes a quick-change coupling adaptor (20) to facilitate the connection of an assortment of nozzles (22). The coupling adaptor includes a body (34) threadedly connected to the outlet end (18) of the blow gun and having a ball lock latch mechanism (42, 44), a spring-biased plunger (50) and a spring-biased external sleeve (60). The nozzle icludes a circumferential groove (30) receiving the balls when the nozzle is pushed into the adaptor body against the bias of the plunger to latch the nozzle in place. The plunger (50) includes guide tongue elements (58) received by cooperating grooves (48) in the body. The plunger tongues are spaced rearwardly of the forward end of the plunger so that the plunger tongues engage the balls to limit forward movement and the plunger overlaps the balls in the forward position, when the nozzle is ejected by pulling back on the sleeve.

Abstract: A caustic etchant composition suitable for use on lithium containing aluminum alloys has between about 125 to 300 grams per liter of sodium hyroxide, between about 35 to 145 grams per liter of sodium sulfide, between about 0.5 to 4 percent by volume of triethanolamine, between about 1 to 10 grams per liter EDTA, between about 2 to 20 grams per liter sodium carbonate and the balance being water. The composition is effective to chemically etch lithium containing aluminum alloys and leave a smooth, clean chemically milled surface effective for use in chemically milled parts and free of stress concentrating surface characteristics.

Abstract: A sealing ring structure comprising a sealing ring made of a tough-elastic plastic material and a stressing ring made of a rubber-elastic material has the outer surface of the sealing ring designed as a conical surface and arranged in such a manner, relative to a groove accommodating the sealing ring and the stressing ring, that the stressing ring comes to occupy a position between this conical surface and the flank of the groove on the low-pressure side. The pressure fluid, which penetrates to the outside of the sealing ring through pressure-relieving grooves, urges the stressing ring into the wedge-shaped gap between the outer surface of the sealing ring and the end face of the groove. Consequently, the sealing ring is wedged in the groove and prevented from rotating relative to the machine part comprising the groove and to the stressing ring.

Abstract: This refrigeration system expansion valve assembly (10) includes a valve body (12) having an upper portion (14) an intermediate portion (15) providing a valve chamber (17) and a valve port (18), and a lower portion (16). A valve inlet (20) and outlet (22) communicate with the valve chamber (17) on each side of the valve port (18). A piston assembly (24) is mounted in the body (12) for closing the valve port (18). The piston assembly (24) is actuated by a push rod assembly (26) driven by a stepper motor 28. The push rod assembly (26) includes a threaded member (102) slidingly and non-rotatively mounted in the body (12) and linearly driven by the motor shaft (30) which is threadedly received by said threaded member (102). The piston assembly (24) is urged into engagement with the push rod assembly (26) by a return spring (36) and includes a fluted nose portion (80) and a bleed passage (90, 92) communicating valve chamber (17) and the spring compartment (75).

Abstract: A light absorbing medium to be interposed under photosensitive layers, such as a photo-resist for integrated circuit "chips" to eliminate defects caused by reflected light, has a polymer vehicle which can penetrate into small depressions of a substrate and form a thin, smooth and uniform coating. The coating includes a light absorbing dye. This light absorbing layer is imageable in the process. The light absorbing material eliminates many of the defects caused by reflected light resulting in increased sharpness of the images in the photo-resist. The material reduces the losses due to defects and increases the yield of useable product.

Abstract: An illumination module comprising a housing having one or more cavities, each containing a source of illumination such as an incandescent lamp at its closed end. A housing mounting plate containing a window coextensive with the open end of the housing is affixed to the open end of said housing in such a way as to create a slot between the mounting plate and the housing. A movable mask containing one or more apertures to configure and position the light as it leaves the housing through the window is located in the slot so that one or more segregated targets can be illuminated by means of the single mask positioning of the apertures relative to the open end of the individual cavities.

Abstract: This lacing assembly is for use with an article of footwear and includes lower and upper vamp sections connected by a single continuous lace. The lower vamp section includes opposed vamp portions having lace-receiving eyelets including opposed upper end locking eyelets. The upper vamp section includes opposed vamp portions having lace receiving eyelets including opposed lower end locking eyelets. The locking eyelets include a locking member having an eyelet opening and a communicating slit which receives the lace in locked relation. The locking eyelets permit the fit of the lower vamp section to be adjusted selectively and independently of the upper vamp section.

Abstract: The shoe sole (12) includes an insole (18), an outsole (16) and a midsole (20). The outsole includes openings (28, 30) at the ball of the foot and the heel of the foot and the midsole, of EVA material, is provided with cavities (46, 48) receiving polyurethane inserts (50, 52) disposed concentrically with respect to associated outsole openings. The inserts are larger in diameter than the outside openings and include a domed central portion (58) projecting through said openings.

Abstract: An improvement for an electrically powered appliance having a pushbutton "ON-OFF" switch. A cam mechanism is manually operable by a user of the appliance to move the switch from its biased "OFF" position to its unbiased "ON" position. The mechanism holds the switch in its "ON" position when manual force is removed.

Abstract: A method of controlling consumption of animal feed is disclosed which is capable of limiting consumption to a desired level per animal without the use of special equipment or additional labor for this purpose. The feed composition includes a basal ration containing an effective amount of sodium hydroxide to control consumption of the feed composition to the desired level.

Abstract: This bearer wiper assembly (10, 12) includes independent extensible arms in the form of pneumatic rams (28) provided for each printing press bearer (14, 16). The pneumatic rams (28) are pivotally mounted to a support bracket (22) in swing-away relation and a bearer wiper unit (70) is provided at the remote end of each ram. The rams are releasably held in place by a latching mechanism (48, 60) and each wiper unit (70) includes by an ell-shaped pad (72) releasably clamped to a mounting frame (76) carried by each ram (28). The bearer-engageable portion (98) of each pad (72) is apertured to collect foreign particulate matter from the bearers (14, 16).

Abstract: An improvement to a gravity feed dispenser (D) for container (C) having a guide assembly A. The dispenser includes spaced apart, longitudinally extending rails (34) and the improvement comprises a rectangular shaped overlay (3) of a low friction material. The overlay spans at least two rails and has an integrally formed channel (7) by which the overlay is attached to one of the rails to secure the overlay in place.

Abstract: This rotary die cylinder assembly (10) includes a cylinder (12) having end bearers (14) attached thereto. The cylinder includes intermediate body (16) and opposed end shafts (20). The body 16 is adapted to carry tool members (18) and the end shafts are externally threaded to receive the bearers, the bearers including an internally threaded bore (34). The cylinder body includes opposed annular end faces (30) adapted to receive associated bearer inner faces (32) in torqued metal-to-metal relation. An opening (42) is drilled between the faces (32, 33) of each of the bearers and extends into the the cylinder to receive a pin (44) to secure the bearers to the cylinder. Each opening extends into the cylinder body sufficiently so that the associated pins can be driven completely into the cylinder body end and out of engagement with the bearers. When this is done removal of the bearers and replacement thereof with new bearers, which can be pinned to the cylinders at a different location, is easily accomplished.

Abstract: An apparatus (1) for baking food products includes an elongated tunnel (3) defining an oven (5). A conveyor (13) conveys food through the tunnel. Gas supplied to the tunnel is combusted by burners (43, 45) and the heat generated by the combustion is imparted to an upper hearth (17) and a lower hearth (19) by heat exchangers. The hearths radiate the heat into the oven to bake food product being conveyed therethrough and upper and lower sets of temperature sensors (93, 95) are provided to control the oven heat.

Abstract: Filters suitable for microelectronic uses and the like may be prepared directly on substrates either as monolithically integrated filters or as hybrid filters using a soluble dye material in a resin. The resin may be applied to microelectronic substrates and patterned by conventional microphotolithographic processes.

Abstract: Conversion apparatus (1) for a multiple door cooler (C). A seal (3) for forming a seal between a door and the cooler housing (H), when the door is closed, has a base element (5) which is affixed to the inner face (1F) of the door and extends around its periphery. A latch (27) attaches to the base element of one door and the base element of an adjoining door to form a rigid connection between the doors so they open and close in unison.

Abstract: This shrink wrap package includes a container having side margins defining an open top and a shrink wrap plastic cover having a first portion disposed above the container margins and a second portion disposed in lapped relation to the container below the margins, the first portion including vent openings of a size and number to permit free airflow through the package and allow the escape of gas. The cover is shring-wrapped to the container by means of a heat gun and in one embodiment the cover is dome-shaped to suit placement over a container basket having an arcuate handle.

Abstract: This cushioned bag includes a double layer of plastic with longitudinal columns formed therebetween. The columns contain cushioning material such as air. The bag has a tubular outer portion providing an outer wall and an inner portion providing an inner wall and cooperating with the outer wall to define the columns. The inner wall is connected to the outer wall intermediate to the columns. The method of manufacturing the cushioned bag comprises the steps of extruding the outer tubular member, extruding the inner tubular member having castled portions spaced from the outer member, sealing the inner member to the outer member between the castled portions, cutting the tubular members into individual bag lengths, sealing one end of the cut tubular members to provide a closed bottom portion and sealing the other end of the outer tubular member to the castled portions to provide closed upper ends of the castled portions.