The specification relates to thin, minute foils of a synthetic material obtained by an interfacial polycondensation reaction. More specifically, a process is described in which one reactive compound is dissolved in a non-aqueous solvent that has a boiling point below the boiling point of water. A second reactive compound is dissolved in water and the non-aqueous phase is then dispersed in the aqueous phase. A polycondensation reaction takes place at the interface of the two phases resulting in t...

Systems and techniques associate one or more dynamic attributes with one or more opportunities representing potential commercial transactions. Each opportunity may include one or more static attributes that are automatically associated with the opportunity. Each opportunity may further include one or more dynamic attributes. Subsequent to their creation, dynamic attributes may automatically be associated with each opportunity, with each opportunity of a particular type, with one or more opportun...

A dynamic expander which is particularly suitable for restoring the original dynamic range of prerecorded stereo sound program material is disclosed. In this embodiment, the expander comprises first and second variable gain amplifiers respectively coupled to a stereo input. The gain of the amplifiers is controlled by a common slow-attack, slow-decay time-constant circuit. An input of the time-constant circuit is coupled to the stereo input and the time-constant circuit responds thereto to provid...

A system, method, and apparatus that, in some embodiments, displays one or more guides when a selected object moves into a particular alignment with one or more other objects is described. The one or more guides may be used to align the objects in relation to one another. In this way, the screen is free from the clutter of guides when they are not needed, but the guides are present when they are needed, i.e., when the selected object moves into or near alignment with another object or objects.

A dynamic damper for absorbing vibrations in a rotary driveshaft, including a mass member assembly having a plurality of mass members, each mass member having an inner surface, an outer surface, and an affixing member to affix the mass member to another mass member of the assembly, the mass member assembly being affixable to a rotary shaft.

A dynamic stabilizer comprising an elastomerically cushioned weight coaxially and movably mounted on an elastomerically cushioned support rod. In the preferred embodiment, the stabilizer includes a support rod, end caps, a vibration-absorbing mechanism, and a weight. The support rod is a generally cylindrical, elongated rigid member. The end caps are removably attached to each end of the support rod along the longitudinal central axis of the support rod. A threaded shaft, coaxial with the longit...

Catalyst particles are separated from the wax in a reactor slurry reactor by feeding a portion of the slurry to a dynamic settler. Heavier catalyst particles settle and are removed as the slurry at the bottom of the settler is recycled back to the reactor. Clarified wax is removed at the top of the settler. A multi-channel baffle prevents turbulence, improving retention of the desired heavier catalyst particles.

A forming tool for pipe ends with a fixing device holding the pipe and a flanging die acting on the projection of the pipe end, where the flanging die has a mandrel which can be driven into the pipe end. A forming die surrounds the mandrel. The mandrel and the forming die are held in a housing. A limiting die surrounding the forming die being provided.

A dynamic logic system is disclosed in which a capacitor is charged by a clock signal through a gating device. The capacitor is either discharged or remains at its charged value in response to the impedance of a logic circuit. Two such systems are disclosed in which the output from the first logic system is applied as an input to the second logic system.

The disclosure is directed to a dynamic absorber with pneumatic springs, which absorber is adapted for absorbing a vibration of a machine caused by an excitation force generated in the machine. The dynamic absorber comprises a pair of pneumatic springs disposed to be spaced apart from one another along a preselected spring action line, a weight means supported between the pair of pneumatic springs and capable of vibrating, and a pressurized air pipeline circuit for introducing a pressurized air ...