A method, apparatus, and computer instructions for managing a library in a data processing system that supports file compression. Functions in the library that are unrequired on the data processing system are identified to form a set of identified functions. Existing data for the set of identified functions in the library is overwritten with new data that is more compressible than the code, wherein compression of the library by the data processing system results in a library with a smaller size.

An encapsulant fluid is provided comprising a mixture of a diene-containing compound and a dienophilic compound. At least one of the diene-containing and the dienophilic compounds is protected so that the compounds do not substantially react with each other at room temperature. The diene-containing and the dienophilic compounds undergo a reversible Diels-Alder polymerization reaction at a polymerization temperature above room temperature to form a solid debondable polymeric encapsulant. Also pro...

An alternator for use in an automobile is driven by an internal combustion engine. The alternator includes a pulley that is coupled to a rotating shaft of the engine via a driving belt such as a poly-V belt. Plural pulley grooves to be engaged with the driving belt are formed on the pulley between a front flange and a rear flange. A projected surface of a front frame is located around the outer periphery of the rear flange, so that the driving belt is correctly positioned between the front and t...

The present invention relates to bisphenyl-2,3,5,6-tetrafluoro-4-trifluoromethylphenylphosphine oxide compounds and synthesis thereof, more particularly to novel bisphenyl-2,3,5,6-tetrafluoro-4-trifluoromethylphenylphosphine oxide compounds having both a perfluorinated benzene substituent and a phosphine oxide moiety. Compounds of the invention can be useful as a monomer for preparing polyimides having a low dielectric constant and a superior adhesion while maintaining the superior thermal and m...

An oil pump has a split frame with the pump mechanism situated in a chamber in one of the frames or between the split frames. An inlet conduit extends from an inlet port to the low pressure side of the pump and an outlet conduit extends from the high pressure side of the pump to an outlet port. An excess pressure relief path is provided to permit fluid flow from the outlet conduit to the inlet conduit when the outlet conduit pressure exceeds the inlet conduit pressure by a predetermined differen...

A rotational speed sensor for a skid control system for sensing the rotational speed of a prop shaft of a wheeled vehicle having a rotor mounted for rotation with a prop shaft and a stator mounted on the differential housing of the vehicle. The stator and rotor are provided with confronting circumferentially disposed teeth with the stator further including a coil for providing an output signal to the skid control system and the rotor further including a magnet for establishing a flux through the...

ON and OFF information signals are transmitted through an AC voltage distribution line via a single frequency carrier signal during a period of time in each cycle of the AC voltage when the information signal is in the ON condition and during another period of time in each such cycle when the information signal is in the OFF condition. A receiver receives the carrier signal from the distribution line synchronously with the AC voltage and determines the ON and OFF condition of the derived and rec...

The induction machine of this invention comprises a stator with the slots ereof carrying a polyphase exciting winding and an armature winding; each phase of said armature winding consisting of at least two series-connected branches made up by separate coils; in each phase of the armature winding the coils of one branch are displaced relative to the similar coils of the other branch of an electric angle equal to the electric angle between the adjacent phases of the exciting windings encircling sa...

A pair of toothed elements of magnetically permeable material are coaxially mounted for relative rotation with their teeth spaced opposed in rotational registration. The toothed elements are further mounted in magnetic circuit with magnets and a coil whereby magnetic flux provided by the magnets follows two separate magnetically parallel flux paths including the pair of toothed elements and the coil. As the toothed elements are relatively rotated, the net reluctance of the flux path through the ...

An inductive, frequency generator having first teeth-like protrusions provided in at least one of two first annular regions of a magnetically excited stator one of the first annular regions being divided into at least two arcuate portions. Further substantially identically shaped teeth-like protrusions are provided in at least one of two further annular regions of a rotor. The rotor and stator are positioned close to one another with their respective annular regions and teeth-like protrusions op...