Abstract: An improved container comprising an open tray assembly and a cover assembly which is placed over the open tray assembly after the open tray assembly is packed with articles, such as fresh produce. Side flaps on the cover assembly are folded over and attached to the side walls of the tray assembly. The top panel of the cover assembly has an opening and is provided with tear lines adjacent said opening to form closure panels which will permit the cover to be easily opened and reclosed.

Abstract: The carton is made from a one-piece blank which is erectable to an expanded condition from a flattened condition. The assembled carton is folded to the flattened condition at the point of manufacture for shipping to the point of filling. At the point of filling the flattened carton is expanded and the contents are placed in it. The carton has free end inwardly extending side wall panels which engage the end wall panels of the carton to hold the carton in the expanded condition.

Abstract: A carton has a handle formed on its top. The carton comprises top and bottom walls connected by a tubular body. The top wall has inner and outer panels extending from opposite sides of said tubular body and being overlapped and secured together. An elongated handle panel is formed from a portion of the outer top panel, and is substantially equally spaced from the tubular body opposite sides. A score line is formed in the outer top panel to define the handle panel, which score line extends substantially parallel to a free end edge of the outer top panel and at least to the tubular body. This handle panel lies flat against the top wall of the carton while it is shipped and stored, and is readily accessible by tearing along the score line. The handle panel is oriented to lift the carton in line with the carton center of gravity to avoid tilting of the carton.

Abstract: A rectangular take-out carton which includes a flanged tray and tapered locking cover is disclosed. The tray flanges along the opposed sides are outwardly and downwardly extending and have an outward and upward bias which locks them behind and in edge-to-edge engagement with folded back and secured marginal portions of the associated side closure panels of the cover which are normally biased laterally inwardly. The end flanges of the tray are outwardly and downwardly extending for engagement with downwardly extending tapered end closure panels of the cover to provide a carrying flange and closure combination which creates a thermal seal and permits the weight of the carton and its contents to be supported thereby. The cover lock is released by pushing down and pivoting the cover side closure panels outwardly against their normal bias to free the folded back marginal portions from their edge-to-edge contact with the opposed outwardly and upwardly biased side wall flanges of the tray.

Abstract: A glueless, tapered sidewall tray erected from a unitary blank of paperboard. The tray has a hexagonal base with trapezoidal upwardly and outwardly extending printed side panels hingedly connected to the base sides. Alternate first side panels have pairs of side flaps on opposite side edges with tabs on the upper edges of the side flaps remote from the connection of the flap to its associated first side panel. Inner flaps on second side panels are hingedly connected thereto at their tops and extend downwardly to a lower central slot which interrupts the hinged connections of the second side panels with the base sides. The inner flaps have tabs which lock in said lower central slots. The tabs on the upper edges of the side flaps of the first side panels are received in top central slots which interrupt the hinge line between the second side panels and their associated inner flaps to secure adjacent first and second side panels.

Abstract: An automatic lock bottom carton with a pyramid closure is disclosed having two tabs extending from two panels that lock into corresponding openings on tabs of oppositely presented panels. The double lock prevents the collapsing of the pyramidal shape so that it can support a product in its intended form. The carton can be of single cell or multiple cell structure with one of the pyramid sides derived from the center divider.

Abstract: A blank and a stackable carton produced from the blank and particularly suited for packing fresh fruits and vegetables includes a tray with a rectangular floor panel and vertical side walls. The side walls includes side cover flaps extending from fold lines defining the outer edges of the side walls. Pairs of side wall flaps are provided, each flap in each pair extending from a fold line defining an end of the side walls. A generally rectangular stacking panel is fitted into each end of the tray. Each stacking panel may include a pair of recesses at its lower edge which are aligned with openings in the rectangular floor panel of the tray. The trays can be vertically stacked with the openings in the floor of one tray aligned with tabs protruding from the upper surface of the lower tray.

Abstract: A sliding gate for closing the discharge opening of a hopper having inclined side walls is mounted on elongated low-friction bodies or assemblies secured between the underside of upturned inclined side margins of the gate and the top sides of inclined side walls of a discharge chute secured to the hopper and extending below the discharge opening. The elongated low-friction bodies or assemblies are mounted to create a labyrinth seal by methods which include the use of a plurality of integral stud portions extending through corresponding openings along the inclined side margins of the gate, adhesives, keyways, welding or combinations thereof. The elongated low-friction bodies or assemblies are of a polymeric material such as nylon, Teflon or a composite material like ultra-high molecular weight polyethylene impregnated with molybdenum disulfide. The polymeric low-friction material may be molded to a metal matrix which is mounted on the gate by means of welding.

Abstract: A railway house car is provided with a sliding door and door driver. The door driver includes a lock having a door mounted hasp and upper and lower bracket portions mounted on a fixed door post for common engagement with a locking pin. The lower bracket portion has a pivoted manual lever mounted thereon with a crank arm for providing an increased mechanical advantage. The crank arm extends downwardly to pivotally and drivingly engage a door latch carried on an inner surface of the crank arm. The door latch has an opening on its end opposite the crank arm for selective connection to a flanged boss mounted on a vertical door edge reinforcement member. The lever with its crank arm and the door latch may be made from plate steel.

Abstract: An apparatus and method for filtering and classifying waste or process streams into three product streams using a polymeric net belt to drive a filter drum and hydrophobic polymeric filter element thereon. A matte of solids is doctored from the belt to provide a first product stream. A roller mounted on a fluid cylinder driven pivoted arm compresses the filter element to provide a smaller suspended solids stream for collection in a trough inside the drum. This second product stream is removed axially from the trough by means of a pump. A third clarified or effluent stream is produced and collected in the drum as the stream passes through the foam filter element. This third stream is removed axially in the direction opposite of said second stream. A shower keeps the foam in the compressed area water filled to prevent vapor lock or gas blockage in the cellular foam filter.

Abstract: A mold handler for flaskless foundry molds made up basically of a horizontal support beam and two clamping arms supported for movement along the beam toward and away from each other. Each clamping arm has rotationally mounted pads with gripping surfaces having serrations thereon. The pads are self-aligning. The clamping arms move via a fluid circuit operably connected thereto. The entire structure is suspended by apparatus lying substantially within a plane containing the center of gravity of the beam and the structure it supports. The clamping arms are maintained at equal and opposite distances from the center of gravity at all times during operation of the mold handler by means of an interconnecting synchronizing linage. The fluid circuit controls and actuates fluid cylinders to urge the clamping arms toward and away from one another selectively to engage and release the gripping surfaces with and from a flaskless mold positioned therebetween.

Abstract: A low pressure heat resistant decorative laminate material comprises a wood base member directly secured to a decorative plastic film by an adhesive having aluminum powder dispersed therein.

Abstract: An electro-hydraulic steering system is disclosed for a wide track steerable vehicle which changes the position of each steerable slave wheel to an optimum angle depending on the angle of a hydraulically steerable master wheel. Controls, including electro-hydraulic steering mechanisms, are provided to cause the steerable slave wheels to turn relative to one another to assume and maintain an optimum turning radius and optimum turning relationship as the vehicle operator maneuvers the vehicle along a desired curved path of travel by hydraulically controlling a master steerable wheel. The system minimizes tire wear, reduces structural stresses in the vehicle, and maximizes traction during turning maneuvers. No conventional tie rods are required and the system may be implemented to permit two wheel steering, four wheel crab steering, and four or more wheel coordinated steering.

Abstract: A rail car having an interior cavity and an end opening for loading and unloading lading is provided with a pair of door assemblies, each of which includes a plurality of panels, each pivotally movable with respect to the other for closing at least a portion of the end opening. Pivot means comprising a shaft for mounting each of the door assemblies are provided to move the door assemblies between their respective open position and closed position. The pivot means are mounted for movement toward and away from the interior of the rail car on a track to permit storage of the door assemblies within the rail car when their panels are folded back upon one another. The shaft is manually driven by means of a housing. A rack and a source of rotational power including a cooperating pinion mounted on the shaft act to guide, move and lock the door. The housing has a cavity into which one or more enlarged lever ends are inserted and secured before assembly of the housing to the shaft.

Abstract: This invention relates to combustion units in which combustible fluids are fed to a combustion chamber and burnt, and in which the resulting combustion gases are used to drive a power output.

Abstract: A bidirectional force limiter for limiting the magnitude of a force applied along a line of action to a predetermined magnitude includes a slide assembly supported for reciprocating movement along its longitudinal axis by the spaced guide plates of a support structure. A yieldable force-bias element, such as a helical spring in compression, is constrained between the guide plates, and structure is provided for transmitting the applied force from the slide assembly to the biasing element to cause the slide assembly to displace and the biasing element to yield in response to the applied force. The force limiter is suitable for use, in a preferred mode, with cargo-container spreaders which are adapted to attach to and detach from cargo containers. The spreader carries a plurality of locks which are adapted to register with and engage complementary lock receiving structures on each container.

Abstract: A rail car having an interior cavity defined partially by vertical rail car side walls and a roof structure with an inwardly and upwardly directed portion to improve car clearance is disclosed. Access to the cavity for loading and unloading lading is through an end opening. A pair of door assemblies, each of which includes a plurality of panels, each panel of which is pivotally movable with respect to the others, are included for closing the end opening. Pivot means for mounting each of the door assemblies are provided to move the door assemblies between their respective folded open positions and unfolded closed positions. The pivot means are mounted for movement toward and away from the interior of the rail car to permit storage of the folded door assemblies within the rail car along the car side walls. Top panel portions extend from the top of the door assemblies angularly inwardly relative to the opening and in spaced relation with each other and the roof structure.

Abstract: An open top gondola railway car of depressed center design having stub sills and an end panel at each end of the car body which slopes outwardly and upwardly from an intersection with a generally permanently closed bottom having horizontal plate portions and at least one centrally located depressed curved portion in cross-section. Wheeled multi-axle trucks adjacent each end are provided with the horizontal plate portions extending over them. An upwardly directed step portion located intermediate the ends of the curved portion and reinforced openings having a smoothly curved perimeter in the horizontal plate portions located over the wheels, provide an increase in the clearance distance between the bottom and any concave or convex contoured portion of track upon which the car is located. The openings may be circular with rings or flanged conical members bolted to them to provide the reinforcing. The sloped ends have support sheets directing lading forces exerted on the ends to the stub sills.

Abstract: A rail house car with at least one opening along each of its sides. The car includes a door for closing each of the openings by movement of the doors longitudinally along the car sides and laterally into and out of the openings. Bottom and top rotating crank members moveably support and retain the doors on longitudinal tracks below the doors and within longitudinal retainer means above the doors. At least some of the crank members are selectively manually driven by rotational means for selective lateral movement of the doors. The top crank members adjacent the upper portion of the doors each include a bore. A forged pin is telescopingly received in each of a plurality of pipes rotationally mounted on the door. Each pin has a shank portion and an upper headed or flanged portion. Each crank member's bore is counterbored to receive the headed portion of a pin.

Abstract: A straddle crane including four vertical column members, two side beam or torsion members, and at least one header beam member, and having wheel or caster assemblies supporting each vertical column member. The straddle crane is implemented for two-wheel or four-wheel steering and for two-wheel or four-wheel driving with open or closed ends. The structures of the header beam and the side beam members are appropriately selected, and the attachment means therefor to the vertical column members are chosen to accommodate the various forces and stresses occurring on the structure during normal operation over uneven terrain or surfaces. The header beam member is sufficiently flexible to permit movement of the casters over and in contact with uneven terrain without producing unacceptable shear stresses in the header beam member. The torsion beam member defines a closed geometric figure in cross section to provide torsional and bending resistance to the loads applied to the vertical columns.