Abstract: An alignment jig uses steel alignment cross members and chords to align multiple load bearing member footing legs simultaneously with great accuracy, thereby greatly speeding construction footing installation times. Using preset adjustment stops, multiple footing patterns may be readily accommodated. The entire alignment jig may be readily assembled or prepared for transport by skilled workers in an hour or less. By using the alignment jig, the speed of footing construction may be greatly increased. In some cases, footings that would have previously required four days to a week to build were reduced to a single day, with consequent cost and time savings. Although one initial use of the alignment jig is for high voltage power line tower footings with four legs, it may be used with as few as two legs, and may be used with more than four legs, and in a variety of applications.

Abstract: An alignment jig uses steel alignment cross members and chords to align multiple load bearing member footing legs simultaneously with great accuracy, thereby greatly speeding construction footing installation times. Using preset adjustment stops, multiple footing patterns may be readily accommodated. The entire alignment jig may be readily assembled or prepared for transport by skilled workers in an hour or less. By using the alignment jig, the speed of footing construction may be greatly increased. In some cases, footings that would have previously required four days to a week to build were reduced to a single day, with consequent cost and time savings. Although one initial use of the alignment jig is for high voltage power line tower footings with four legs, it may be used with as few as two legs, and may be used with more than four legs, and in a variety of applications.

Abstract: A method and apparatus for molding composite articles can include a pair of opposed mold sections having first and second molding membranes that define a mold plenum. The mold sections have a thin-skin mold section configuration. Each mold section can be filled with a gas backing. The temperature of the mold plenum can be controlled by regulating the temperature of the gas backing.

Abstract: Apparatus for performing weight resistance exercise via manual rotation, the apparatus comprising: a rotatable member mounted on an axle, the axle being manually engageable for application of manual force to rotate the rotatable member; a pair of cable stops each connected to an end of a respective cable which is interconnected to a weight, the weight through the cable holding the stops within a respective mounting aperture; the rotatable member having a pair of retaining members, each retaining member receiving and retaining a respective stop member upon rotation of the rotatable member; the cable being interconnected to the weight such that rotation of the rotatable member is resisted by the weight through the cable upon application of manual rotating force to the axle.

Abstract: The present invention relates to an improved RF converting system. The RF converting system is comprised of a plurality of RF converter modules which are configured for redundant system operation using distributed protection switching in an active "daisy chain" configuration. The "daisy chain" configuration distributes the converter protection switching functions to each individual RF converter module through a switching module coupled to each of the RF converter modules. The "daisy chain" terminates in a backup RF converter which assumes the frequency and attenuation of a faulted RF converter module. A high speed bus provides communication interface between each of the online RF converter modules and the backup RF converter module so that the backup RF converter module can detect faults and reconfigure the system to replace a failed RF converter module.