Abstract: Apparatus for making foam from water, air and surfactant produces very small bubble foam by discharging the ingredients for the foam through passages that cause the stream of ingredients to be alternately expanded and contracted as by travel along tortuous passages to generate the foam. The foam may be delivered to pipes of relatively large diameter to a place of use, particularly for dust suppression. A more uniform flow of foam is obtained as compared with foamers of the prior art where the foam sometimes broke up into alternating slugs of foam and air when discharged from pipes of large enough diameter to cause the foam to travel at low velocity.

Abstract: Extrusion apparatus for manufacturing blow moulded sheets of expanded polystyrene wherein, following an extruder there is a static cooler/mixer member comprising inner and outer cooling surfaces defining between them an annular passage, the inner cooling surface having a star-shaped outline when viewed in cross-section with the points of the star extending at an oblique angle to the longitudinal axis. Preferably the star-shaped outline is provided by folded metal strips several of which are provided alternately angled and staggered with respect to one another.

Abstract: An in-line mixer for animal feed is provided. The mixer receives feeds from a plurality of sources, mixes the feeds in a short distance, and deposits the mixed feed on a conveyor which carries it to animal feeding stations. The mixer includes a housing forming an upright passage containing baffles and rapidly rotating agitator blades which maintain the feeds in a fluidized condition and accomplish the mixing operation in a short time. Consequently, the mixer itself is short and requires relatively little space.

Abstract: A device for generating special turbulence patterns in fluids flowing in pipes, such as for mixing, promoting chemical reactions, or accelerating the transfer of heat to or from the fluid through the pipe wall. Two or more sets of flow dividers are mounted in the pipe, each set including a first and second flow divider with septum panel elements that overlap longitudinally of the pipe. The first flow divider septum elements mutually diverge downstream in a selected longitudinal plane in longitudinally overlapping relationship with septum elements of the second flow divider mutually diverging upstream in a different longitudinal plane so as to divert the fluid in such manner that the flow regions adjoining the pipe wall are caused to exchange positions with flow regions in the vicinity of the pipe axis.

Abstract: A process and apparatus for the static mixing of materials, preferably to produce glass fiber reinforced cement and concrete, comprises a static mixing column having a plurality of static mixing elements therein and a chamber at the top thereof and in communication therewith and into which solid materials to be mixed are fed. Liquid to be mixed with the solid material is sprayed in the column all along the length thereof.

Abstract: The plastics processing machine employs a mixer which has a static mixing device formed of at least one insertion member composed of guide elements in layers which form flow channels. The hydraulic diameter d.sub.h is made no more than eight millimeters (8 mm) in order to obtain a high mixing quality. The hydraulic diameter may vary along the mixer, for example by decreasing from the inlet end to the outlet end.

Abstract: An in-line mixer for mixing fluids pumped along a tube, being a number of mixing elements inserted in series longitudinally along a tube, each mixing element comprising a plate member folded along at least one fold line to form at least two substantially planar portions angled with respect to one another, at least one of the planar portions being of triangular shape having a base edge extending across the tube, substantially centrally thereof from one side to the other of the tube, the at least one fold line forming another side of said triangular portion.

Abstract: A mixing device for conveying a fuel mixture into the inlet manifold of a combustion engine formed by an outer casing having an inlet pipe for the fuel components to be treated connected to the casing. A system of inclined blades is disposed in the casing for dividing the mixture into thin layers and a system formed by two co-axial truncated cones placed tip to tip provided radially inwardly of, and co-axial with the system of blades. The material to be treated is fed through a ring of jet nozzles surrounding at least one of the truncated cones and through a Venturi tube located downstream of the system to increase the turbulence during movement of the mixture.

Abstract: Production of a marbled product is accomplished by associating a plurality of product constituent streamlets in a desired cross-sectional pattern or configuration, diverting a portion of one or more of the product constituent streamlets of the pattern into one or more of the other product constituent streamlets of the pattern, joining the associated streamlets into a unified marbled product stream, and then dispensing the marbled product stream into a product container.

Abstract: A plurality of identical cell rupture valve assemblies are connected in tandem to produce increased homogenization effectiveness.

Abstract: Two or more fluids, particularly viscous fluids, may be thoroughly blended and homogenized with a static mixer and method using a mixing element which comprises two or more banks of stationary baffles arranged around an axis parallel to the overall direction of flow of the fluids to be mixed. The baffles in each bank of the element are inclined at an angle to the overall flow axis and at an angle to the baffles of adjacent banks so that fluid streams are guided through windows or apertures formed by abutting baffles along the interface between adjacent banks. Each bank includes a plurality of substantially parallel baffle plates spaced along the axis, and at least one of the banks has a second set of substantially parallel baffle plates spaced along the axis and alternating with the first set of baffles.

Abstract: Apparatus is described that is useful for making a stable aqueous dispersion of a complex alkali metal-aluminium-silicate which is soluble in hydrochloric acid. The apparatus comprises a mixing tube, at least two inlets through which aqueous streams can pass into one end of the tube, one of the inlets being for the supply of the bulk of the water for the process at a pressure of at least 40 psi, an outlet at the other end of the tube, and stationary means within the apparatus for causing the aqueous streams to adopt a generally helical path and to mix with one another with shear, and for causing the product leaving the outlet to be at a pressure of atmospheric pressure or less and which is at least 40 psi below the pressure in the inlet of the bulk of the water.

Abstract: A motionless mixer including a number of baffles attached to a central rod is slidably mountable within a hollow cylindrical conduit. A cross member is attached across the interior of the conduit and is configured to mate with a slot formed in the downstream end of the central rod, to prevent longitudinal motion or rotation of the mixer within the conduit.

Abstract: Device for the uniform application of liquid treating baths in the form of foam onto textile flat materials, consisting essentially of (a) elements for foaming the liquor under pressure, by a pipe-line for the foam linked to (b) a foam distributing and foam applying chamber, and immediately below, but not directly limited therewith, (c) elements for supporting and transporting the textile web in open width of the material.