The present disclosure provides devices and methods for holographic screen suspension systems. These systems can allow for a smooth reflection surface of the screen that is void of wrinkled or non-uniform surfaces.

A three-dimensional stage representation uses light including a plurality of lighting elements for example are independently elevated to thereby emit light from a lighting element. A three-dimensional stage representation system includes: an elevation device for elevating a to-be-lifted object; a to-be-lifted object connected to the elevation device via a reel wire; a suspension baton from which the elevation device is suspended; and a controller that is connected to the elevation device and the to-be-lifted object in a communicative manner and that can provide an independent control thereto.

The apparatus for moving a load includes a carrier cable having a first end connected to the load, and a second end connected to a movement device, the movement device including an operating line connected to a movement carriage. An electric motor is configured to move the carriage as a function of a force exerted on the operating line.

A hoist system having a drum primarily self-contained within a batten, for raising and lowering lighting, sound equipment, curtains and the like, often in a performance environment. The compact system is highly scalable to a variety of spaces and applications, including school and public theaters and concert halls, as well as some homes, private business, etc. The hoist system may be adapted with safety mechanisms including an overspeed detector, which may comprise a centrifugal detection mechanism coupled to an elongate member of the system; dampening means; a compact mechanism for trimming or adjusting an operative length of elongate member; stabilizing pipe shaft bearings; elongate member diverter pulley mechanisms load balancing termination points. Additional features include various alternative combination hoist implementations and orientations, and alternative incorporated attachment mechanisms for use with the hoist system.

A ribbon for an arrangement via which electrical power can be supplied to a load via a suspension member, such as a band or cable, while movement of the load occurs via deliberate winding up of the band or cable onto the drum or sheave or unwinding of the band or cable from the drum or sheave. The ribbon includes an electrical lead portion having one or a plurality of individual electrical leads and a sheath portion. The sheath portion and the electrical lead portion are moveable with respect to each other.

A lift system comprises a drum that rotates about an axis, an elongate member that winds around the drum when the drum rotates in a first direction and that unwinds from the drum when the drum rotates in a second direction, a drive mechanism operable to rotate the drum, and a braking mechanism adapted to inhibit rotation of the drum. The braking mechanism includes a brake disk rotatable with the drum, a movable brake pad, and a ramp that guides movement of the movable brake pad. A method of operating the lift system comprises rotating the drum in a first direction to wind the elongate member onto the drum, rotating the drum in a second direction to unwind the elongate member from the drum, and moving the brake shoe along the ramp to thereby cause the movable brake pad to be compressed against the brake disk.

A hoist system having a drum primarily self-contained within a batten, for raising and lowering lighting, sound equipment, curtains and the like, often in a performance environment. The compact system is highly scalable to a variety of spaces and applications, including school and public theaters and concert halls, as well as some homes, private business, etc. The hoist system may be adapted with safety mechanisms including an overspeed detector, which may comprise a centrifugal detection mechanism coupled to an elongate member of the system; dampening means; a compact mechanism for trimming or adjusting an operative length of elongate member; stabilizing pipe shaft bearings; elongate member diverter pulley mechanisms load balancing termination points. Additional features include various alternative combination hoist implementations and orientations, and alternative incorporated attachment mechanisms for use with the hoist system.

A system that comprises a winch apparatus for manipulating loads associated with public performances, such as performances involving performers and staging equipment, and in which one or more ribbons are deployed each of which is windable around, and unwindable from, a drum, a spool, or other take-up device. Also included is a ribbon for an arrangement via which electrical power can be supplied to a load via a suspension member, such as a band or cable, while movement of the load occurs via deliberate winding up of the band or cable onto the drum or sheave or unwinding of the band or cable from the drum or sheave. The ribbon includes an electrical lead portion having one or a plurality of individual electrical leads and a sheath portion. The sheath portion and the electrical lead portion are moveable with respect to each other.

A lift assembly includes an article to be lifted between a lowered position and a raised position, a drive element coupled to the article, a power mechanism coupled to the drive element, and a power transfer mechanism coupled between the power mechanism and the drive element. The power transfer mechanism includes control electronics having a first upward limit switch adapted to deactivate the power mechanism when the article is lifted to a first upward height, and a second upward limit switch adapted to deactivate the power mechanism when the article is lifted to a second upward height higher than the first upward height.

A lift system comprises a drum that rotates about an axis, an elongate member that winds around the drum when the drum rotates in a first direction and that unwinds from the drum when the drum rotates in a second direction, a drive mechanism operable to rotate the drum, and a braking mechanism adapted to inhibit rotation of the drum. The braking mechanism includes a brake disk rotatable with the drum, a movable brake pad, and a ramp that guides movement of the movable brake pad. A method of operating the lift system comprises rotating the drum in a first direction to wind the elongate member onto the drum, rotating the drum in a second direction to unwind the elongate member from the drum, and moving the brake shoe along the ramp to thereby cause the movable brake pad to be compressed against the brake disk.