A load support device and load support systems. The load support device may include a body. The body may include a first fixed bollard. The body may additionally include a pivotable bollard. The pivotable bollard and the first fixed bollard may be configured such that friction is applied to a line between the first fixed bollard and the pivotable bollard without locking the line to preclude movement in response to a force applied to the pivotable bollard. A load support system may include a load support device and a line threaded through a body of the load support device in one of several different line configurations.

Buoy apparatus and buoy control system for identifying an underwater object, and method for identifying an underwater object are disclosed. A buoy apparatus for use underwater, comprises a buoy securely connected to a first end of a rope; a spool structure securely connected to a second end of the rope; a retractable head for engaging the spool structure; and a spool control device for actuating retraction of the retractable head, wherein in response to an instruction from the spool control device, the retractable head disengages the spool structure, and the spool structure releases the rope when the buoy raises toward a surface of water.

Disclosed is an elevator machine including: a plurality of stationary structures, including a proximate stationary structure and a distal stationary structure, a brake support that comprises the proximate stationary structure, a brake disc rotably supported in the brake support intermediate the plurality of stationary structures, the plurality of stationary structures and the brake disc each including a respective one of a plurality of orifices, and the plurality of orifices being mutually aligned and offset from a rotational axis of the brake disc to removably receive an elongated bar, wherein when the bar is positioned in the plurality of orifices, the brake disc is prevented from rotating, thereby preventing vertical movement of an elevator car in an elevator hoistway.

Disclosed is an elevator machine including: a plurality of stationary structures, including a proximate stationary structure and a distal stationary structure, a brake support that comprises the proximate stationary structure, a brake disc rotably supported in the brake support intermediate the plurality of stationary structures, the plurality of stationary structures and the brake disc each including a respective one of a plurality of orifices, and the plurality of orifices being mutually aligned and offset from a rotational axis of the brake disc to removably receive an elongated bar, wherein when the bar is positioned in the plurality of orifices, the brake disc is prevented from rotating, thereby preventing vertical movement of an elevator car in an elevator hoistway.

Height adjusting device (1) for adjusting the height of an agitating device (2) in a digester (101) of a biogas plant (100), biogas plant (100) comprising a digester (101), a support unit (10), a displacement member (6), an agitating device (2), and a height adjusting device, and method for operating an agitating device (2). The height adjusting device comprises a housing unit (4), a drum device (5) rotatably accommodated on the housing unit (4), and a displacement member (6). The displacement member (6) is in functional connection with the drum device (5) and the agitating device (2) and the displacement member (6), depending on the direction of rotation of the drum device (5), can be wound onto the drum device (5) or unwound from the drum device (5) in sections, so that the agitating device (2) can be displaced upwardly or downwardly. Furthermore a fixing device (7) is provided which is suitable and configured to fix the drum device (5) at least temporarily to prevent the displacement member (6) from unwinding if the displacement member (6) is not retained tautly between the drum device (5) and the agitating device (2).

Height adjusting device (1) for adjusting the height of an agitating device (2) in a digester (101) of a biogas plant (100), biogas plant (100) comprising a digester (101), a support unit (10), a displacement member (6), an agitating device (2), and a height adjusting device, and method for operating an agitating device (2). The height adjusting device comprises a housing unit (4), a drum device (5) rotatably accommodated on the housing unit (4), and a displacement member (6). The displacement member (6) is in functional connection with the drum device (5) and the agitating device (2) and the displacement member (6), depending on the direction of rotation of the drum device (5), can be wound onto the drum device (5) or unwound from the drum device (5) in sections, so that the agitating device (2) can be displaced upwardly or downwardly. Furthermore a fixing device (7) is provided which is suitable and configured to fix the drum device (5) at least temporarily to prevent the displacement member (6) from unwinding if the displacement member (6) is not retained tautly between the drum device (5) and the agitating device (2).

A system for selectively disallowing unwinding of a storage library robotic mechanism cable assembly in a direction that would otherwise allow a platform of the robotic mechanism to move downwardly via the force of gravity while at the same time allowing for winding up of the cable assembly and the platform, such as during shipping, manual access, replacement of the robotic mechanism, and/or the like. The system may include a ratchet pawl for engaging between adjacent teeth of a drive assembly of the robotic mechanism and an actuator for selectively moving or allowing for movement of the ratchet pawl into and out of the engaged position. In one embodiment, the system may include an electric switch or the like to sense when the pawl is engaged with the drive assembly.

A system for selectively disallowing unwinding of a storage library robotic mechanism cable assembly in a direction that would otherwise allow a platform of the robotic mechanism to move downwardly via the force of gravity while at the same time allowing for winding up of the cable assembly and the platform, such as during shipping, manual access, replacement of the robotic mechanism, and/or the like. The system may include a ratchet pawl for engaging between adjacent teeth of a drive assembly of the robotic mechanism and an actuator for selectively moving or allowing for movement of the ratchet pawl into and out of the engaged position. In one embodiment, the system may include an electric switch or the like to sense when the pawl is engaged with the drive assembly.

A method for locking the rope winch which is characterized by the fact that the locking bolt is inserted when the rope drum of the rope winch is stopped, first, through one of two holes in the first lug, then through one of the arched cuttings on the wheel of the rope drum of the rope winch, and finally through one of two holes in the second lug, Then the locking bolt is secured in position with a nut.

A load support device and load support systems. The load support device may include a body. The body may include a first fixed bollard. The body may additionally include a pivotable bollard. The pivotable bollard and the first fixed bollard may be configured such that friction is applied to a line between the first fixed bollard and the pivotable bollard without locking the line to preclude movement in response to a force applied to the pivotable bollard. A load support system may include a load support device and a line threaded through a body of the load support device in one of several different line configurations.