Methods and systems are provided for a device. In one example, the device is configured to automatically grab and slip a line. The device is further configured to allow a user to actuate a side plate and a cam independently of one another.

A gear apparatus for controlling movement of an output by an input coupled to a power source. The apparatus an input member coupled to the input, an output member coupled to the output and the input member so that movement of the input member causes movement of the output, a selectably releasable member coupled to the input member and the output member, wherein the selectably releasable member remains in a fixed position while the input member and the output member move, and a releasable member brake mechanism coupled to the selectably releasable member, wherein the releasable member brake mechanism is arranged to prevent movement of the selectably releasable member when the input member and the output member move and to allow back driving of the selectably releasable member.

A backdrive braking element is provided for preventing backdrive of a shaft. It includes a poly-lobed locking mechanism including an unlock shaft that has a polygon shaped inside profile and is coupled to a poly lock drive and brake assembly. The poly lock drive and brake assembly includes a plurality of poly lock drive and brake segments and is contained within the interior cavity of a housing.

A backdrive braking element is provided for preventing backdrive of a shaft. It includes a poly-lobed locking mechanism including an unlock shaft that has a polygon shaped inside profile and is coupled to a poly lock drive and brake assembly. The poly lock drive and brake assembly includes a plurality of poly lock drive and brake segments and is contained within the interior cavity of a housing.

An automatic descent control device includes a line configured to be attached to a load. A line system retracts slack from the line when the line is not loaded and extends the line when the line is loaded. At least one braking system provides a braking force when the line is loaded so as to control extension of the line and a descent rate of the load. The at least one braking system is operable in at least two configurations, a first configuration that the at least one braking system lowers the load at a first descent rate, and a second configuration that the at least one braking system lowers or locks the load at a second descent rate. The load being a constant and the first descent rate is greater than the second descent rate.

An automatic descent control device includes a line configured to be attached to a load. A line system retracts slack from the line when the line is not loaded and extends the line when the line is loaded. At least one braking system provides a braking force when the line is loaded so as to control extension of the line and a descent rate of the load. The at least one braking system is operable in at least two configurations, a first configuration that the at least one braking system lowers the load at a first descent rate, and a second configuration that the at least one braking system lowers or locks the load at a second descent rate. The load being a constant and the first descent rate is greater than the second descent rate.

A cone brake no-back includes an input no-back disk, an output no-back disk; and a no-back ball ramp mechanism operably connected to the input no-back disk and the output no back disk. An input no-back cone is operably connected to and supportive of the input no-back disk. The input no-back cone is axially loaded by an input no-back spring. An output no-back cone is operably connected to and supportive of the output no-back disk. The output no-back cone is axially loaded by an output no-back spring. A no-back input shaft is operably connected to the input no-back disk and the output no back disk, and a no-back output shaft is operably connected to the output no back disk.

A driving device includes: a transmission mechanism; a driving mechanism, moved with the transmission mechanism; a linkage mechanism, moved with the driving mechanism and including a locking unit; and a housing, including an accommodation seat and sealing cover, the accommodation seat accepting the transmission, driving and linkage mechanisms, the sealing cover in combination with the accommodation seat to seal the transmission, driving and linkage mechanisms, one end of the linkage mechanism partly extended out of the sealing seat, and the locking unit partly pressed against an inner side wall of the accommodation seat. Whereby, the transmission mechanism is actuated to drive the driving mechanism to rotate, allowing the driving mechanism to drive the linkage mechanism to rotate; the action of the transmission mechanism is stopped, the locking unit locks the linkage mechanism, thereby capable of preventing power waste and the damage of the transmission mechanism and driving mechanism.

A driving device includes: a transmission mechanism; a driving mechanism, moved with the transmission mechanism; a linkage mechanism, moved with the driving mechanism and including a locking unit; and a housing, including an accommodation seat and sealing cover, the accommodation seat accepting the transmission, driving and linkage mechanisms, the sealing cover in combination with the accommodation seat to seal the transmission, driving and linkage mechanisms, one end of the linkage mechanism partly extended out of the sealing seat, and the locking unit partly pressed against an inner side wall of the accommodation seat. Whereby, the transmission mechanism is actuated to drive the driving mechanism to rotate, allowing the driving mechanism to drive the linkage mechanism to rotate; the action of the transmission mechanism is stopped, the locking unit locks the linkage mechanism, thereby capable of preventing power waste and the damage of the transmission mechanism and driving mechanism.

A torque limiter and no-back assembly comprises an input shaft, an output shaft, a torque limiter provided between the input shaft and the output shaft, the torque limiter comprising a torque sensing element; and a no-back device arranged to brake the output shaft when the torque sensing element senses levels of torque above a threshold level between the input shaft and the output shaft, characterised in that the torque sensing element comprises a torsion spring having ends which are coupled to the input shaft and the output shaft for rotation therewith.