Abstract: A method and an apparatus for manufacturing corrugated boards are disclosed. The method may include the steps of supplying a first web of medium having a first and second sides, wherein each side of the first web having a plurality of flutes, and wherein each flute having a crest, applying a wetting agent and an adhesive composition in a sequential fashion to the plurality of flutes on the first side of the first web, and securing a second web of medium to the plurality of crests on the first side of the first web to form a single-faced corrugated board.

Abstract: A method and an apparatus for manufacturing corrugated boards are disclosed. The method may include the steps of supplying a first web of medium having a first and second sides, wherein each side of the first web having a plurality of flutes, and wherein each flute having a crest, applying a wetting agent and an adhesive composition in a sequential fashion to the plurality of flutes on the first side of the first web, and securing a second web of medium is to the plurality of crests on the first side of the first web to form a single-faced corrugated board.

Abstract: A method and an apparatus for manufacturing corrugated boards are disclosed. The method may include the steps of supplying a first web of medium having a first and second sides, wherein each side of the first web having a plurality of flutes, and wherein each flute having a crest, applying a wetting agent and an adhesive composition in a sequential fashion to the plurality of flutes on the first side of the first web, and securing a second web of medium is to the plurality of crests on the first side of the first web to form a single-faced corrugated board.

Abstract: An improved flatting agent comprising an inorganic hydrogel having a pore volume of at least 1.0 ml/g, an average particle size in the range 1 to 10 microns, and a particle size distribution such that when the flatting agent is dispersed in a coating, the fineness of grind is at least 4.75 on the Hegman scale. The inorganic hydrogel flatting agents of this invention are prepared by milling an inorganic hydrogel under controlled temperature conditions wherein a volatiles content of at least 40 weight percent is maintained, to produce inorganic hydrogel particles characterized by a pore volume of at least 1.0 ml/g, an average particle size in the range of 1 to 10 microns, and a particle size distribution such that when the flatting agent is dispersed in a coating, the fineness of grind is at least 4.75 on the Hegman scale.

Abstract: An improved flatting agent comprising an inorganic hydrogel having a pore volume of at least 1.0 ml/g, an average particle size in the range 1 to 10 microns, and a particle size distribution such thatt when the flatting agent is dispersed in a coating, the fineness of grind is at least 4.75 on the Hegman scale. The inorganic hydrogel flatting agents of this invention are prepared by milling an inorganic hydrogel under controlled temperature conditions wherein a volatiles content of at least 40 weight percnet is maintained, to produce inorganic hydrogel particles characterized by a pore volume of at least 1.0 ml/g, an average particle size in the range of 1 to 10 microns, and a particle size distribution such that when the flatting agent is dispersed in a coating, the fineness of grind is at least 4.75 on the Hegman scale.

Abstract: An improved process for selectively forming noncyclic, aliphatic polyamines from the corresponding aliphatic polynitriles by reacting the polynitrile with hydrogen at low temperature under a pressure of from 50 to 5,000 psi in a fixed bed reactor while continuously contacting the reactants with granular chromium and nickel promoted Raney.RTM. cobalt packed therein.

Abstract: Catalysts which are suitable for auto exhaust use are made with a promoter oxide that is deposited in a concentration gradient. A solution of the promoter oxide precursor, e.g., cerous nitrate solution, is impreganted uniformly into the pore structure of a support which can be in the form of beads or extrudates to a level just below the full incipient wetness. The impregnated support is then treated with a gaseous base such as ammonia, under dynamic conditions such as tumbling (to insure uniformity), which causes the precipitation of the promoter oxide in the form of a radial concentration gradient. The resulting product is then dried and calcined at sufficiently high temperature to effect complete conversion of the promoter precursor to its oxide form, e.g., CeO.sub.2.

Abstract: A system for use in detecting jams in a series of members of defined length which are moving along a predetermined path includes a pulse generator for providing sequential pulses, each representative of a unit of length. A counter having a preset number therein representative of the defined length of a member plus an additional fixed length substantially less than that of a member receives an input from the pulse generator and from a sensor positioned adjacent the path of movement. During the period that a member is sensed, the preset count in the counter is reduced by the pulse generating means and if that count is reduced to zero, a jam condition is indicated and means are provided to stop movement of the members.

Abstract: A system for detecting a jam condition in a series of sequentially moving members which are passing a plurality of stations. The system finds particular application in the production of corrugated board or the like in which at the first station there may be a slitting or slotting or printing drum which is performing an operation on a series of moving corrugated board members. There are detection means at each station and successive signals from one station indicating the presence of a member at that station without a resetting signal from the next sequential station will provide a signal indicative of a jam condition. There are means to prevent a false indication of a jam which can be caused by the absence of a member at the first station in the system.