Abstract: Exercise equipment having the control system capable to switch the equipment in its existing highest resistance mode in order to impede and thus discourage the usage of this equipment by an unauthorized user. Exercise equipment capable to detect unauthorized use and activating an alarm in order to discourage the usage of this equipment by an unauthorized user.

Abstract: A cranking pad assembly for a gearbox of a turbomachine including a cranking pad shaft rotatably secured in a gearbox housing and engageable with a gearbox drivetrain when urged inwardly into the gearbox housing. The cranking pad shaft includes an interface for a cranking tool. An interlock pin retains the cranking tool at the cranking pad shaft and a disconnect spring is operably connected to the gearbox housing to bias the cranking pad shaft outwardly from the gearbox housing.

Abstract: A wind power hybrid rotor of a wind power plant for converting wind energy into drive energy is provided. For a utilization of the wind energy in a manner as efficient as possible, a wind power hybrid rotor is provided with a cross-flow rotor, a guide device and a Magnus rotor. The cross-flow rotor is supported so as to be rotatable about a rotational axis and has a plurality of axially extending rotor blades. The guide device has a housing segment partially enclosing the cross-flow rotor in the circumferential direction in such a manner that the cross-flow rotor can be driven by inflowing wind. The Magnus rotor axis is arranged within the cross-flow rotor, and the Magnus rotor axis extends in the direction of the rotational axis. The Magnus rotor has a closed lateral surface and is rotatably driven about the Magnus rotor axis by a drive device.

Abstract: A rotator drive connection for a gas turbine engine accessory box has a shaft connected to be driven by a main shaft in a gas turbine engine through a gear train. A first drive connection allows selective drive of the shaft. A biased drive member includes a second drive connection selectively brought into contact with the first drive connection to allow rotation of the main shaft. The biased drive member biases the second drive connection out of contact with the first drive connection. A gas turbine engine accessory box and a method of borescopic inspection are also disclosed and claimed.

Abstract: A selective rotation arrangement for a shaft, the arrangement including a housing mountable spaced from the shaft and an engagement member with distal and proximal ends which is selectively movable relative to the housing towards or away from the shaft between an operating position towards the shaft and a rest position clear of the shaft, the engagement member having a gear member at the distal end thereof which is engageable with the shaft in the operating position to permit turning of the shaft by the engagement member, but is disengaged from the shaft in the rest position.

Abstract: A gearbox includes an outer housing including manual rotation access passage and a manual rotation shaft coupled to a spool of an engine to rotate the engine spool. The gearbox also includes coupled to the outer housing that includes a flapper valve that, in a closed position, prevents a lubricant from escaping from the outer housing via the manual rotation access passage.

Abstract: A fan unit has a fan (10). Associated with the fan is an air-guiding tube (22) through which the fan (10) transports air, during operation. The air-guiding tube (22) is connected to at least one carrier tube (23) for suspension of the fan (10). The fan includes a carrier part (25). A damping member (30) is arranged between the carrier part (25) and the carrier tube (23) to reduce any structure-borne sound which occurs during operation of the fan (10).

Abstract: Propeller combination for an aft-mounted boat propeller drive unit with counter-rotating pushing propellers (8,9). The forward propeller (9) is made with blades (12) which have blade tips with an outer edge (b) which approaches a straight line. The width of the blade tip is between 40% and 45% of the maximum width of the blade.

Abstract: A fan assembly includes a vertical axis wind turbine (VAWT) which is coupled to an air extraction or air supply fan. The VAWT is located above and is coupled coaxially to the fan. The fan assembly also includes an auxiliary turbine to provide start-up torque to initiate rotation of the VAWT. The VAWT is typically a Darrieus-type turbine and the auxiliary turbine is typically a Savonius-type turbine. In the preferred embodiments, the fan assembly includes a rotational speed governor to avoid damage to the turbine and/or fan in high winds.

Abstract: A machine with a rotary turning apparatus in accordance with one embodiment of the present invention includes a housing with at least one end wall, at least one bearing assembly, a shaft, a passage, a pair of shoulders, an engagement device, and a biasing device. The shaft is mounted for rotation in the housing and on the bearing assembly. The passage extends through the wall to provide access to one end of the shaft. The engagement device has an end which is shaped to mate with the one end of the shaft and is mounted for movement in the passage between the pair of shoulders which are located on the wall in the passage. The biasing device is positioned between one of the shoulders and the collar which extends at least partially around the engagement device. The biasing device biases the one end of the engagement device away from engagement with the one end of the shaft. By compressing the biasing device, the end of the engagement device can be mated with the end of the shaft for manual rotation.

Abstract: Manual rotation of a turbomachine rotor in order to bring the blades of the rotor one by one in front of an endoscope to check the blades is effected by a shaft which is rotatably connected to the rotor and which may be, for example, a shaft of the auxiliary equipment of the turbomachine, the shaft being manually rotatable by a driving shaft which is mounted in an opening in the casing housing the shaft and which is engageable with the shaft by self-disengaging coupling, a seal being provided between the driving shaft and the casing.

Abstract: A device for producing bubbles is disclosed including a housing having an entry port and an exit port, where a chamber is defined therein in flow communication with the entry and exit ports. A drive shaft is located within the housing chamber with a turbine wheel mounted to the drive shaft in a rotatable manner. The turbine wheel includes a plurality of pin members extending therefrom and a crank arm is provided for rotating the turbine wheel. Accordingly, water and bubble solution entering the housing chamber through the entry port is mixed with air to produce bubbles in the housing chamber which are encouraged to flow through the exit port. The entry port is oriented substantially perpendicular to the rotation of the turbine wheel and the exit port is oriented substantially in line with the rotation of the turbine wheel.

Abstract: A device for aerobic exercise characterized by increased user comfort, especially during extended periods of use which comprises an elongate frame, a housing enclosing the frame, a stress imposing pedal-driven fan carried by one end portion of the frame and a user supporting and positioning seat carried by the other end portion of the frame opposite the fan and comprising a seat portion inclined from front to rear at a predetermined acute angle to the horizontal, and a backrest portion inclined at a predetermined acute angle to the vertical, with at least the backrest portion having ventilation openings therein which communicate with the front and rear surfaces of the backrest portion.