Abstract: A nest-or-stack, lidless, open-stacking container for handling and storage of bulk material such as food products features a seamless, one piece plastic construction with channels formed into the bottom to permit the use of a forklift truck for moving, lifting and stacking of the container, and with stacking surfaces for stacking filled containers and nesting stop surfaces for nesting empty containers.

Abstract: A carton is provided where an end is closed by four flaps. One of the flaps is formed with a severable strip. A length of adhesive tape joins the ends of the strip to the carton, thus forming a handle for the carton.

Abstract: A mechanism for cutting a web of flexible sheet material which is adapted to be used in a dispenser having a feed roller and a pinch roller between which rollers the web passes. A knife is pivotally mounted in the feed roller to swing about an axis laterally displaced from the plane of a radially outward portion of the knife defining a cutting edge which edge is projected outwardly beyond the periphery of the feed roller to cut the web as it passes over the feed roller and cam followers ar carried by the ends of the knife extending beyond the ends of the feed roller with the followers displaced from the pivot mounting axis of the knife. Stationary cams are mounted adjacent the ends of the feed roller with which the cam followers on the knife engage to positively project the knife cutting edge beyond the feed roller periphery and retract the cutting edge upon rotation of the feed roller.

Abstract: The present invention comprises a new phenolic-aldehyde based resinous, thermosetting polyol and a method for its production. According to the invention, phenol is condensed using acid catalysis, under freely evaporative atmospheric conditions with a molar excess of aldehyde, in the presence of polyhydroxyl component.

Abstract: A light weight heavy duty, inexpensive and portable stackable assembly for storing and dispensing flowable materials such as capsules and other drug products includes a plastic hopper bin and a plastic base, the surfaces of both hopper and base being smooth, having minimal tendency for the adherence of bacteria, and being easily cleaned. The base construction provides a relatively large area of support for the hopper thus eliminating or minimizing any tendency for the hopper walls to sag and to cause unevenness in the hopper inner surface that could interfere with the flow of the flowable materials out the discharge outlet of the hopper. The assembly is characterized that when stacked the weight of the stack is carried by the base, each of the hoppers being required to support the weight only of its own contents.

Abstract: A fast curing shell molding composition having the tensile strength of a conventional novolac resin when cured contains a fast curing novolac resin comprising a methylene chained polyphenylol wherein a major portion of the methylene linkages are coupled to adjacent phenylol groups of the o-o' and p-p' position, wherein at least about 19% of the methylene linkages are coupled to adjacent phenylol groups at the o-o' portions, and wherein at least about 3% of the total number of methylene linkages are coupled to adjacent phenylol groups at the p-p' positions. The shell molding composition is produced from the fast curing novolac resin by uniformly coating refractory granules with the fast curing resin. The fast curing novolac resin can be prepared by blending a conventional novolac resin with a novolac resin having a large proportion of methylene linkages coupled to adjacent phenylol groups at the o-o' position.

Abstract: An evaporative dispenser is disclosed for emitting a vaporized material into the ambient. A battery powered, motor-driven fan forces air through the dispenser housing and across a material reservoir to evaporate and entrain material therein prior to being discharged from the housing. A supply container is supported directly on a reservoir lid and comprises structure which cooperates with the housing to direct the air flow across the reservoir. The supply container also comprises a battery nesting recess which affords compact packaging of the components within the housing. A transparent viewing window is provided for easy viewing of the level of material in the reservoir.

Abstract: A container suitable for fruit and vegetable produce has a lid with a multipoint friction lock for retaining the lid closed on the container body provided by a stacking tab projecting from the perimeter of the body opening having undercut side edges and an aperture facing toward such opening while the lid has a notch located for the stacking tab to engage therein when the lid is closed, the ends of such notch being spaced to engage beneath the undercut side edges of the stacking tab and the notch providing a locking portion intermediate such notch ends to engage in the stacking tab aperture in the closed position of the lid. Preferably, the material of the lid is diagonally scored to facilitate bending the lid for interengagement of the stacking tab and notch, and to accommodate moderate overfilling of the container.

Abstract: A water-base well drilling, workover or completion fluid containing a fluid loss control agent prepared by pre-reacting sulfonated phenol with formaldehyde under alkaline conditions and then reacting the mixture with phenol under controlled conditions is described.

Abstract: A water-based drilling fluid composition is described which comprises an aqueous dispersion of a clay material containing an effective dispersing amount of a modified lignosulfonate which is obtained by graft polymerization of from 5 to 30 weight percent of an acrylic compound with the lignosulfonate. The grafted lignosulfonate has an average molecular weight of less than 80,000.

Abstract: A sheet transfer apparatus (10) is disclosed. The apparatus (10) includes a first station (14), a second station (16) and a transfer mechanism (18) for transferring stiff sheets (20A,B) from the first station (14) to the second station (16). A conveyor mechanism (48) moves the sheet (20B) in a first direction (49) from the second station (16). Push-plates (32) are provided for releasing the sheet (20B) from the transfer mechanism (10) at the second station (16). A pair of longitudinally spaced bar members (50) apply downward pressure to a sheet (20B) falling downward onto the conveyor mechanism (48). Each bar member (50) is supported in an inoperative position by one of the push-plates (32).

Abstract: The present invention is directed to a case with a rotatable and readily removable cover. The unitary flexible cover is provided with hinge members adapted to cooperate with corresponding slots in an upstanding wall of the case upon manual flexing of the cover. Upon release of the cover, the cover returns to its normally flat posture, locking the cover in place through means of tabs. A preferred embodiment comprises a plastic beer case.

Abstract: A fire door comprising a core and edge banding, the principal ingredients of the core being expanded perlite, gypsum and cement, and including, as minor ingredients, an organic binder, and having a density not greater than about 35 lbs./cu. ft. The banding comprises composite stiles and rails, each formed of a strip of wood and a strip of a cast mixture of which the principal ingredient is gypsum and including a binder and preferably also including fibers, unexpanded vermiculite and clay.

Abstract: A dispenser to accommodate source and reserve rolls of flexible sheet material has a housing provided with inwardly facing tracks on the opposite inner side walls thereof and guide means associated with each track adjacent the lower end thereof to drivingly assist the source roll dispensing action with a reserve roll segregating device cooperating between the guide means and the reserve roll to both hold the reserve roll away from the dispensing position of the source roll and urge the guide means to brake against over-spin of the source roll incident withdrawal of sheet material therefrom.

Abstract: A machine for clearing and cleanly chipping trees and brushwood in the path of the machine as it moves forward. A pair of counterrotating disk cutters cut a kerf in the standing material and propel the cut material upwardly and rearwardly to the throat between a pair of feed rollers. The feed rollers deliver the cut material to a chipper, which reduces the material to chips and delivers them to a chip storage bin. The bin can be tilted to dump chips alongside the machine. The entire mechanism is carried by a self-propelled, articulated, track-supported vehicle which is especially well-suited for operation over soft, boggy ground.

Abstract: A dispenser for folded paper napkins including an enclosed cabinet having an opening in the front thereof through which napkins may be removed individually. A pair of V-shaped guides are mounted on inside surfaces of opposite sides of the cabinet. A drawer for holding a supply of folded napkins has a pair of V-shaped ribs formed along opposite sides which slidably engage the guides to movably support the drawer within the cabinet. A carriage assembly including a pressure plate for engaging the rear of the napkin supply in the drawer has a pair of V-shaped slides affixed to opposite sides. The sides slidably engage the ribs to movably support the carriage assembly in the drawer. A pair of constant force springs are affixed to the cabinet and engage the rear of the pressure plate to urge the plate and carriage assembly forwardly of the drawer against the rear of the napkin supply to facilitate individual removal of the napkins through the cabinet opening.

Abstract: A water-base well drilling, workover or completion fluid containing a fluid loss control agent prepared by pre-reacting sulfonated phenol with formaldehyde under alkaline conditions and then reacting the mixture with phenol under controlled conditions is described.

Abstract: A water-based drilling fluid composition is described which comprises an aqueous dispersion of a clay material containing, in the presence of a phosphate or a particular metal or both, an effective dispersing amount of a lignosulfonate modified by graft polymerization with acrylic acid.