Abstract: Apparatus for splicing a replacement web to a moving web comprises a guide for guiding the moving web along a predetermined path. A cutter severs a portion of the replacement web to establish the leading edge thereof; and a splicing station is positioned in the path of movement of the moving web for splicing the leading edge of the replacement web to the moving web while the latter is moving.

Abstract: An improved packing container forming apparatus is disclosed. In the arbor turret type packing container forming apparatus, the improvement comprising a plurality of arbors arranged in tandem on a rotary packing drum in the axial direction, an aluminum foil suction ring for forming an aluminum bag with its one end closed in combination with the corresponding arbor by winding a sheet of aluminum foil around the arbor in the first rotary row, a package paper suction ring for forming a package paper bag with its one end closed in combination with the corresponding arbor by winding a sheet of package paper around the arbor in the second rotary row, and a shifting mechanism including a pair of racks and a pinion for shifting the arbors in the first rotary row to the second rotary row in a consecutive manner.

Abstract: A driving device for reciprocating a shaft along an axial direction thereof, comprises a reciprocating shaft drum for slidably supporting the reciprocating shaft along the axial direction thereof, a guide groove drum rotated relative to the reciprocating shaft drum and having an annular guide groove with an intersection on the circumferential surface thereof, and a driven member fixed to the reciprocating shaft and engaged with the guide groove. The driven member includes a cam follower and a boat-shaped member rotatable about a shaft extending from the driven member to the guide groove, the boat-shaped member has a cam roller rotatable about another shaft extending from the driven member to the guide groove, and the guide groove has a cam follower guide path engaged with the cam follower, a cam roller guide path engaged with the cam roller and a boat-shaped member guide path engaged with the boat-shaped member at the intersection thereof.

Abstract: A catalyst cmposition for the gas phase oxidation of .alpha.,.beta.-unsaturated olefinic hydrocarbons comprising at least two metal oxides, at least one of which contains molybdenum, and a silica carrier having a specific surface area of at least 250 m.sup.2 /g, the catalyst composition as a whole having a specific surface area of from 100 to 250 m.sup.2 /g.