The invention relates to a device for unwinding and winding one or more lines for uninterrupted connection of each of the one or more lines between two connection points, it being possible to produce the uninterrupted connection between a fixed first connection point and a second connection point which is at a variable distance or in each case one of a plurality of second connection points which are at different distances. The device comprises a rotatable winding body for unwinding and winding the one or more lines, in that the line(s) is/are guided from the first fixed connection point in a first sub-portion from a stationary first position coaxial with the winding body to a second position opposite the first position and from said second position to a third position which is substantially in one plane with the first position but is rotatable with the winding body, the line(s) in the first sub-portion being guided helically at least in portions. The line(s) is/are then guided from the third position in a second sub-portion to the circumferential side of the winding body and optionally via a number of windings around the winding body to the second connection point.

Embodiments provide reels comprising covers, wire hubs, and winding levers. The covers removably attach to casings and close spool apertures of the casings. The hubs spool wire into/out of the apertures via windows of the casings. Moreover, the hubs couple to the covers. Some levers operably couple to the covers. When stowed, the levers are within the perimeters of the covers. When deployed, the levers extend beyond the perimeters. The reels can also comprise the casings. Mounting bases of some reels can removably attach to the casings. Furthermore, some levers can pivot about hinges on the covers. Levers can comprise wind knobs at their ends and the covers can define apertures through which the knobs extend when stowed. Detents which retain the levers in the stowed position can be provided. Moreover, hubs can comprise the detents for engaging the levers when the levers are stowed.

A system and method for electronically controlling a reel system for oilfield operations. The electronically controlled reel system for oilfield operations comprises a reel, and an electronic control system in communication with the reel to electronically control rotation of the reel. The method of controlling a reel for an oilfield operation comprises receiving a command from an electronic control system; and supplying an electrical control signal to the reel based on the command to control rotation of the reel.

The earphone system with retractable cables includes a Y-shaped housing including a first earphone, a first cable winding take-up reel, a first cable connected to the first earphone and the first take-up reel, a second earphone, a second cable winding take-up reel, a second cable connected to the second earphone and the second cable winding take-up reel, a plug-in connector, a third cable winding take-up reel, and a third cable connected to the plug-in connector and the third cable winding take-up reel. The three take-up reels are disposed non-coaxially in the housing, for independently spooling the respective first cable, second cable, and third cable. The housing can include a Bluetooth module and a microphone. The third cable can be electrically connected to the earbuds and the microphone to carry audio signals to and from the earphone system when the plug-in connector is plugged into a mobile device.

A spool apparatus is described to include in one particular example a cable spool with a first cylindrical lip and a second cylindrical lip on an opposite side of the cable spool. A center of the spool includes a clutch bearing in the center of both the first cylindrical lip and the second cylindrical lip that provides a rotational axis for the cable spool to rotate around. The apparatus may also include a feed slot near the first cylindrical lip that provides a passage for cable to pass from the second cylindrical lip to the first cylindrical lip.

A spool apparatus is described to include in one particular example a cable spool with a first cylindrical lip and a second cylindrical lip on an opposite side of the cable spool. A center of the spool includes a clutch bearing in the center of both the first cylindrical lip and the second cylindrical lip that provides a rotational axis for the cable spool to rotate around. The apparatus may also include a feed slot near the first cylindrical lip that provides a passage for cable to pass from the second cylindrical lip to the first cylindrical lip.

A hose reel includes a spool on which a hose is supported. The hose has a number of coils per layer when disposed on the spool. The hose reel includes a motor to drive rotation of the spool at a rate of rotation, a sensor to generate a rotation signal indicative of rotation of the spool, and a controller. The controller is to identify a current wrap layer of the hose about the spool based on a revolution count and the number of coils per layer and determine an effective spool diameter that corresponds with the current wrap layer of the hose. Responsive to identifying a change in the effective spool diameter, the controller is to adjust a control signal provided to the motor to change the rate of rotation of the spool to maintain a constant linear speed during winding or unwinding of the hose.

A system to store, maneuver and pay-out material stored on reels, which reels have a central hub and a pair of reel flanges, includes a shaft for positioning through a center of the hub and a pair of flanges. The flanges are mountable to the shaft on opposite sides of the reel. Each flange is mounted to the shaft for rotation independent of the other flange and independent of the shaft. Each flange has a loading assembly for moving the shaft from a loading/unloading position eccentric of the flange to a loaded position concentric with the flange.

Cable assemblies, methods and systems are provided that generally include a first patch cord, a second patch cord and a third patch cord that are removably positioned within a housing for packaging and payout thereof. The first patch cord includes a first elongated cord and a first connector mounted with respect to one end of the first elongated cord. The second patch cord generally includes a second elongated cord and a second connector mounted with respect to one end of the second elongated cord. The third patch cord generally includes a third elongated cord and a third connector mounted with respect to one end of the third elongated cord. The patch cord assemblies generally include a first coupler element for detachably securing the first patch cord relative to the second patch cord. A second coupler element is provided for detachably securing the second patch cord relative to the third patch cord.

An animal restraint system which involves variable adjustability of maximum extension. A braking device with a pivoting tip which can move from a neutral position to a locked engaged position, a disengaged position, and a semi-engaged position. The semi-engaged position allows for spool rotation in the direction of retraction, while preventing spool rotation in the direction of extension. A brake lock with multiple settings including engaged position, disengaged position, and a semi-engaged position. A spool with teeth where one or more of the teeth is different from the others in shape, size or relative position to promote brake engagement efficiency. A leash maximum settings display. A moving leash guide which reduces tangling during extension and retraction. An adjustable handle grip to accommodate different hand sizes. A snap-on accessory attachment system. A leash dispenser system which limits full extension to reduce system failure.