An apparatus, system, and related methods for holding and maneuvering an industrial vehicle spare tire include a tire support positioned on an industrial vehicle. An industrial vehicle tire is removably securable to the tire support, wherein the tire support has at least two independently adjustable threaded members for controlling engagement of the tire support and the industrial vehicle tire. A winch is positioned proximate to the gate of the industrial vehicle. At least one pulley is positioned above the tire support, wherein at least one winch cable is connected between the winch and the at least one pulley.

An apparatus, system, and related methods for holding and maneuvering an industrial vehicle spare tire include a tire support positioned on an industrial vehicle. An industrial vehicle tire is removably securable to the tire support, wherein the tire support has at least two independently adjustable threaded members for controlling engagement of the tire support and the industrial vehicle tire. A winch is positioned proximate to the gate of the industrial vehicle. At least one pulley is positioned above the tire support, wherein at least one winch cable is connected between the winch and the at least one pulley.

A rotary chain jack may include a frame, a dual chain wheel rotatably coupled to the frame, and a stopper assembly mechanically coupled to the frame. The stopper assembly may include latches. The stopper assembly may be positioned to selectively engage a chain passing over the dual chain wheel. The rotary chain jack may be used to moor offshore structures.

A device for storing and dispensing line for mooring a boat to a dock includes a user interface, an auto-retracting reel assembly, and optionally, a conduit connecting the user interface to the reel assembly. The user interface comprises a canister mounted on a gunwale, or the like, for storing the distal, looped end of a mooring line, a top lid that slides horizontally between an open and closed position, a rail support engaged by the top lid, and a bottom lid having a hole defined therein. The extended mooring line may be locked into place by frictional engagement between the spring loaded top lid and the rail support. To retract the mooring line, a user may open the top lid of the user interface for automated retraction, winding around the reel, until the stopping collar prevents the distal, looped end of the mooring line from passing therethrough.

A device for storing and dispensing line for mooring a boat to a dock includes a user interface, an auto-retracting reel assembly, and optionally, a conduit connecting the user interface to the reel assembly. The user interface comprises a canister mounted on a gunwale, or the like, for storing the distal, looped end of a mooring line, a top lid that slides horizontally between an open and closed position, a rail support engaged by the top lid, and a bottom lid having a hole defined therein. The extended mooring line may be locked into place by frictional engagement between the spring loaded top lid and the rail support. To retract the mooring line, a user may open the top lid of the user interface for automated retraction, winding around the reel, until the stopping collar prevents the distal, looped end of the mooring line from passing therethrough.

A winch drum tension isolation system includes a winch drum having an outwardly extending flange. The flange includes a plurality of holes spaced along the flange. The winch drum tension isolation system also includes a locking mechanism positioned proximate the winch drum. The locking mechanism includes a locking member engageable with the flange, the locking member movable between a first position, in which the locking member is received in a first one of the plurality of holes to prevent rotation of the winch drum, and a second position, in which the locking member is spaced apart from the flange to permit rotation of the winch drum. The winch drum tension isolation system also includes a safety release mechanism having a release member that is selectively engageable with a second one of the plurality of holes to permit removal of the locking member.

A winch drum tension isolation system includes a winch drum having an outwardly extending flange. The flange includes a plurality of holes spaced along the flange. The winch drum tension isolation system also includes a locking mechanism positioned proximate the winch drum. The locking mechanism includes a locking member engageable with the flange, the locking member movable between a first position, in which the locking member is received in a first one of the plurality of holes to prevent rotation of the winch drum, and a second position, in which the locking member is spaced apart from the flange to permit rotation of the winch drum. The winch drum tension isolation system also includes a safety release mechanism having a release member that is selectively engageable with a second one of the plurality of holes to permit removal of the locking member.

Disclosed is a brake winch with reverse release and self-locking functions. The brake winch has a housing with first and second side walls, an accommodating space, and an auxiliary bracket part. A rotating disk is screwed in the accommodating space. A main shaft is screwed on one side of the rotating disk in an interlocking manner. A screw adapter is screwed on the second side wall, and includes an inner connection end that is assembled with the main shaft, and its external end has a threaded groove. The axial displacement of a driving screw, which is screwed on the auxiliary bracket, is matched with the difference of forward and reverse rotation to form a screwing transmission or release mode between the stud section and the thread groove. A friction driving mechanism must prompt the drive screw, the clamping plate and the screw adapter to be in a tightly synchronized state.

Certain embodiments of the present application relate to an unmanned aerial vehicle including a control system, at least one rotor operable to generate lift under control of the control system, a spool mounted for rotation in a winding direction and an unwinding direction opposite the winding direction, a motor operable to rotate the spool in at least the winding direction under control of the control system, and a brake mechanism including a brake actuator operable to transition the brake mechanism between a locked state and an unlocked state under control of the control system. The brake mechanism in the locked state prevents rotation of the spool in at least the unwinding direction. The brake mechanism in the unlocked state does not prevent rotation of the spool in the unwinding direction.

Certain embodiments of the present application relate to an unmanned aerial vehicle including a control system, at least one rotor operable to generate lift under control of the control system, a spool mounted for rotation in a winding direction and an unwinding direction opposite the winding direction, a motor operable to rotate the spool in at least the winding direction under control of the control system, and a brake mechanism including a brake actuator operable to transition the brake mechanism between a locked state and an unlocked state under control of the control system. The brake mechanism in the locked state prevents rotation of the spool in at least the unwinding direction. The brake mechanism in the unlocked state does not prevent rotation of the spool in the unwinding direction.