Abstract: Stringers are fabricated in the form of a tube. The tube in cross section as viewed from its ends has a substantially square shape. Each stringer is fabricated from a plate material which includes a rectangular lower plate and two side plates separately connected to both edges of the rectangular lower plate through respective folding lines. There are a pair of first support plates partially cut out of the lower plate. The support plates are connected to the lower plate along folding lines. These folding lines are located inwardly from both ends of the lower plate and are in parallel with these ends. There are a pair of upper plates separately connected to distal edges of the side plates through respective folding lines. Also, there are second support plates separately connected to distal edges of the upper plates through respective folding lines. A pallet including an upper deck and a lower deck includes a plurality of the fabricated stringers.

Abstract: Disclosed herein is a wood-cased glass door assembly in which a glass door that may be opened is composed of a glazing, and wooden stiles and rails, which are fitted on an outer peripheral edge of the glazing. The wood-cased glass door is mounted for opening and closing into a wooden doorcase fixed in an opening in a wall. Thermally expanding materials are separately installed in spaces defined between an inner peripheral portion of the wooden doorcase and outer peripheral portions of the wooden stiles and rails and between inner peripheral portions of the wooden stiles and rails and the outer peripheral edge of the glazing over the entire length in the longitudinal directions of the spaces. The expanding materials foam and expand under heat to block the respective spaces. Metal fittings for holding the glazing by putting the inner and outer surfaces of the outer peripheral edge of the glazing therebetween are fixed to the wooden stiles and rails.

Abstract: A process of manufacturing of corrugated cardboard type packaging container in which a corrugated core liner adhered at its one side surface to one side liner is applied at its other side surface with an adhesive agent and then with a reinforcing agent and thereafter is adhered to the other side liner to form reinforced corrugated cardboard, and before completion of hardening of the reinforcing agent scored lines are formed in the reinforced region of the reinforced corrugated cardboard for forming a packaging container.

Abstract: An improved paperboard feeding machine has a tiltable lift, a lifting yoke provided on the lift and arranged for operation by respective electric motors for the lift and the yoke. Each of the motors is responsive to change in the effective number of the poles in each of the motors.

Abstract: A scorer apparatus where a pair of driving shafts are disposed and below a sheet of corrugated cardboard or the like, separatable one from another provided with at least two pairs of mutually facing scorer members slidable in the axial direction to enable the sheet-like member to be applied thereon with score lines. Driving shafts are provided with plural moving shafts and each of the plural moving shafts on one side is connected to each corresponding one of the plural moving shafts on the other side through electrically driven shafts. Shifter members engage respective scorer members on each side and are in threaded engagement with each corresponding pair of moving shafts.

Abstract: Continuously variable cutting apparatus for elongated sheet members that are continuously supplied in a longitudinal moving direction and at desired intervals of widths; comprising several first projection nozzles connected to a high-pressure liquid source, the first nozzles being disposed to form at least two rows that extend transversely relative to the moving direction; and at least one second injection nozzle connected to a high-pressure liquid supply source, arranged to be driven to move transversely relative to the moving direction, said second nozzle being provided at a downstream position of the sheet members, below the first nozzles.

Abstract: A scoring and cutting apparatus for an elongated sheet member supplied continuously in a longitudinal direction thereof for forming longitudinal score lines and cuts, respectively, at desired intervals of width. The apparatus has a construction comprising a plurality of injection nozzles for cutting the sheet member which are connected to a high pressure liquid supply source and are disposed to form at least two rows extending transversely relative to the moving direction of the sheet member, and a plurality of scoring rolls are also disposed to form at least two rows extending transversely relative to the moving direction of the sheet member, and a plurality of scoring rolls are also disposed to form at least two rows extending parallel to the rows of the projection nozzles, the rows of scoring rolls each being arranged to be movable upwards and downwards between respective inoperative and operative scoring positions.

Abstract: Apparatus for stacking sheet members in a number of piles, having a conveying passage for the sheet members, so constructed that a downstream end portion thereof can be lengthened and shortened, a stop member movable up and down, facing the downstream end portion, and a lifting mechanism which can be elevated and lowered below a space formed between the end portion of the passage and the stop member.

Abstract: An arrangement for manufacturing a fibrous sheet in which fibers are crushed and dispersed to form a layer of substantially uniform thickness and width. The layer of crushed fibers is conveyed as a continuous belt-shaped sheet layer, and adhesive is sprayed onto the crushed fibers. The sheet layer is then heated and compressed after being impregnated with the adhesive.

Abstract: An apparatus for inverting a sheet member comprising a pair of spaced conveyors cooperatively defining a conveyor passage along which a sheet member can be advanced, and a rotatable arm assembly mounted between the conveyors and including upper and lower arms defining an opening therebetween, adapted for receiving the sheet member from the upstream conveyor and conveying the sheet member to the downstream conveyor. The arms continue rotating back to the initial position after depositing the sheet on the downstream conveyor. The arms are driven at a non-uniform speed and accelerate from the initial position to an upright position and then decelerate from the upright position to the position adjacent the downstream conveyor.