Abstract: A lamellar rotational flexure pivot may include a first pivot end, and second pivot end, and a divider layer positioned therebetween to allow first and second pivot ends to pivot relative to one another. The first and second pivot ends may include a plurality of spring layers and spacer layers that are stacked in alternating fashion to form the lamellar rotational flexure pivot.

Abstract: A lamellar rotational flexure pivot is provided. The flexure pivot may include a first pivot end, and second pivot end, and a divider layer positioned therebetween to allow first and second pivot ends to pivot relative to one another. The first and second pivot ends may include a plurality of flat spring layers and spacer layers that are stacked in alternating fashion to form the lamellar rotational flexure pivot.

Abstract: A stud tensioning device includes a nut having internal threads and external threads. The internal threads engage corresponding threads on the stud. At least two axial bores are defined by the nut, and posts are disposed in the bores. Each post at a first end thereof engages a stop surface, and at a second end thereof extends external to the bores and axially beyond a free end of the stud in a direction away from the structural member. A load cell threadingly engages the nut applying an axially-directed force on the posts in a direction toward the structural member and on the nut in a direction away from the structural member to thereby tension the stud.

Abstract: A stud tensioning device includes a nut having internal threads and external threads. The internal threads engage corresponding threads on the stud. At least two axial bores are defined by the nut, and posts are disposed in the bores. Each post at a first end thereof engages a stop surface, and at a second end thereof extends external to the bores and axially beyond a free end of the stud in a direction away from the structural member. A load cell threadingly engages the nut applying an axially-directed force on the posts in a direction toward the structural member and on the nut in a direction away from the structural member to thereby tension the stud.

Abstract: Apparatus and method for transmitting condition data from a rotating member to a stationary device is disclosed wherein digitized data obtained from a plurality of sensors is transmitted from the rotating member to the stationary device through a system of light emitting diodes on the rotating member which flash light signals in a preselected digital sequence. The data so obtained is received by a system of stationary receivers, and thereafter decoded and processed for utilization. Electric power for the rotating components is obtained by using the kinetic energy of the rotating member.

Abstract: A vibration and noise isolating coupling (11) for a rotating drive train uses a plurality of vibration and noise isolating modules (17) which are arranged circumferentially about the coupling (11) in two rows (21, 22). Each module consists of a plurality of rubber sheets separated by laminations. A pair of drive discs (13, 14) sandwich the modules (17), and a driven disc (15) is located between the two rows (21, 22) of the module (17). Force transmitted from the drive discs (13, 14) is transmitted through the driven disc (15) via the modules 17. The drive discs (13, 14) are compressed toward one another, thereby compressing the module (17) and consequently the rubber sheets within the module (17).The arrangement provides the advantage of resiliently transferring rotating force to rubber components while maintaining the rubber in a compressed state and maintaining a power-transfer capability even if the rubber components are fully deteriorated.