Abstract: For use in a rotational casting machine used for coating a rotating body with elastomer, such as polyurethane, there is provided a nozzle used for dispensing the liquid polyurethane onto the rotating body to be coated. The nozzle of the invention has a plurality of liquid-flow interior discharge-passageways each of which has an inlet connected to a sub-branch tube, which sub-branch tube is, in turn, is fluidly connected to a main branch that, in turn, is connected to a main inlet-passageway having the inlet that is directly connected to mixing head. Each discharge-passageway, or exit-passageway, changes in cross-sectional shape along the longitudinal axis thereof from its inlet to its outlet such that the cross-sectional area from the inlet to the outlet thereof gradually and minimally increases, whereby at least substantial laminar flow of the liquid is achieved with the concomitant reduced dwell-time of the liquid therein, in order to reduce in-nozzle reaction and subsequent clogging of the nozzle.

Abstract: This invention pertains to a packaging and materials handling procedure for heavy rolls of paper and the related means comprising an assembly of devices consisting of end cap support assemblies and a roll ramp, and alternatively, a wheeled barrow.

Abstract: A truck loading dock door seal which moves between a "summer" position which permits ventilation to enter a truck and a "winter" position which establishes sealing engagement between the building and a truck position at a loading dock. Such movement may be provided by a double-acting hinge.

Abstract: Method and apparatus for reducing the sootblowing requirements for boiler heat exchanger tubes which also reduces boiler downtime and production losses as well as energy requirements. The method involves the steps of programming the feeding of chemicals to the boiler in timed relation to a sootblowing cycle to establish a cleavage plane on the tube surfaces. The apparatus includes the feeding of a measured amount of powdered chemicals to the boiler following each sootblowing operation, which includes a storage vessel charged with a measured amount of chemical that is emptied during a chemical application cycle.

Abstract: Method and apparatus for reducing the sootblowing requirements for boiler heat exchanger tubes which also reduces boiler downtime and production losses as well as energy requirements. The method involves the steps of programming the feeding of chemicals to the boiler in timed relation to a sootblowing cycle to establish a cleavage plane on the tube surfaces. The apparatus includes the feeding of a measured amount of powdered chemicals to the boiler following each sootblowing operation, which includes a storage vessel charged with a measured amount of chemical that is emptied during a chemical application cycle.

Abstract: A coal tar emulsion driveway sealer is packaged in a sealed bag. The volume of sealer is less than half the capacity of the bag and the bag is substantially completely evacuated but for the sealer. The separated sealer is mixed by compressing the sides of the bag to induce turbulent flow of the paste and liquid for hydraulic mixing thereof. The sealer may be dispensed at a controlled rate without spattering by cutting a corner from the bag to provide a pour spout. The bag with the sealer may be contained in a carton. The bag membrane comprises an aluminum layer vapor deposited on polyester. Those two layers are sandwiched between layers of EVA copolymer.

Abstract: A coal tar emulsion driveway sealer is packaged in a sealed bag. The volume of sealer is less than half the capacity of the bag and the bag is substantially completely evacuated but for the sealer. The separated sealer is mixed by compressing the sides of the bag to induce turbulent flow of the paste and liquid for hydraulic mixing thereof. The sealer may be dispensed at a controlled rate without spattering by cutting a corner from the bag to provide a pour spout. The bag with the sealer may be contained in a carton.

Abstract: A bucket-like carton has a polygonal cross section and a flexible bail is connected to handle hinges extending from the upper rim of the carton. An outer wall and an inner reinforcing wall forming the sides of the carton are stamped from a single sheet of corrugated board and are joined by the handle hinges. Tabs on the outer wall fold inwardly to overlap the inner wall. The wall tabs also overlap similar tabs extending outwardly from a recessed bottom and a recessed lid. The several layers of cardboard are stapled at both the top and bottom of the carton. The resultant sturdy carton provides the convenience of a bucket and has high strength at a low cost.