Abstract: An improvement is disclosed over conventional internal sizing of stock furnish for papermaking, wherein alum is added to the thick paper stock and the long retention time permits complete reaction with the fibers. The invention process permits successfully adding novel aluminum rosinate size composition unconventionally in thin stock furnish, where retention times are on the order of less that 1 minute. The highly charged aluminum rosinate size is able to be quickly adsorbed onto the fiber surfaces to permit surprisingly efficient sizing in thin stock. The quick sizing avoids concern with rising pH over time (in conventional thick stock application) and increases sizing efficiency.

Abstract: Disclosed herein is a new liquid foaming control composition comprising from about 60% to about 90% by weight of a iquid aliphatic hydrocarbon having a boiling point of at least 150.degree. F., such as mineral oil, from about 7% to about 36% by weight of an ester of a polyethylene glycol and a tall oil fatty acid, from about 1% to about 8% by weight of an aliphatic alcohol having from 20 to 32 carbon atoms, from about 0.5% to about 5% by weight of a high molecular weight hydrocarbon, and optionally from about 1% to about 6% by weight of an aliphatic alcohol, such as isopropanol. The defoaming composition is characterized as a stable solution having notable antifatigue properties in addition to its defoaming properties.

Abstract: An evaporator type humidifier in which a fan wheel is rotated by an air stream and drives a water wheel. The water wheel lifts water from a water receptacle to a water distribution system. The water distribution system can collect water and then distribute a substantially equal amount of water to each air-water contact member in the humidifier. The amount of water distributed to each contact member is sufficient to wet the contact member and inhibit the formation of deposits on the contact member by flushing away minerals and other solid particles.

Abstract: A support member for an electric heating assembly of the type having a plurality of heating elements supported by electrical insulators. The support member comprises channel-like strips sized to receive the electrical insulators and includes tab-like portions integrally formed from at least one of the walls of the strip and lying across the opening of the channel defined by the strip. Adjacent ones of the tab-like portions lock the insulators in position on the support member.

Abstract: A method of manufacturing a support structure for an electric heating assembly from a single piece of metal. The piece of metal is advanced progressively through a plurality of work stations. At a first station, excess material is removed from the piece of metal to provide a strip of metal extending transversely between second and third strips of metal. At a next station, the transversely extending strip is formed into a channel-like member. Thereafter, insulators to mount the heating element are loaded onto the channel-like member. The second and third strips of metal are bent at right angles to the first strip to provide integral side supports for the support structure of the assembly.