A swimming pool cleaner coupled to a hose, wherein the hose is configured to automatically extend and retract.

The patent discloses a winding device with a speed regulating mechanism. The winding device with a speed regulating mechanism includes a device body and a winding wheel installed on the device body. The speed regulating mechanism is arranged on one side of the winding wheel and includes a transmission gear set and a speed regulating shifting rod. The transmission gear set includes a sliding output gear and a speed regulating transmission member. According to the winding device with a speed regulating mechanism, the speed regulating mechanism is installed in the winding device, through the regulation of the speed regulating shifting rod, the transmission efficiency of a water turbine can be changed, and the regulation of various winding speeds can be achieved. Moreover, an idling function can be fulfilled after an output shaft is pulled through a handle, which makes the winding wheel suspend moving.

A system is provided including a coiled tubing reel apparatus including a reel drum for storing a coiled tubing string spooled on the reel drum and a hydraulic reel drive motor that controls rotation of the reel drum. The system further includes a reel controller that determines an estimated reel back tension for a portion of the coiled tubing string between the reel apparatus and the injector based on a set of parameters related to a coiled tubing operation. The reel controller determines a target reel back tension to be applied to the portion of the coiled tubing string by adjusting the estimated reel back tension based on a historical job dataset. The reel controller then determines and sets a target hydraulic pressure of the reel drive motor to achieve the target reel back tension in the portion of the coiled tubing string.

Liquid nutrients are continuously applied to a first group of rows of standing crops by pulling a drag hose from a reel located at one end of a field and between two crop rows with a boom having one end pivotally connected to an applicator and a tractor. The boom provides a liquid supply line from the drag hose to the center or one end of the applicator. At the opposite end of the field, the tractor and applicator turn 180° while the boom pivots to project from one end of the applicator to the drag hose. The tractor returns down adjacent rows back to the first end of the field with the boom projecting to the drag hose while the reel simultaneously retracts the hose between the two crop rows. The reel is moved axially to a third group of rows, and the steps are repeated.

A hosed-reeling apparatus comprising a hose reel and a rack having a front opening for demountably receiving and supporting the hose reel. The hose reel has two sidewalls, a connection member concentrically coupling the two sidewalls, and two spindles extending laterally outward from the centers of the two sidewalls, respectively. The rack has at least a base framework, and a locking structure configurable between an unlock position and a lock position. The base framework has two upward facing channels on opposite sides thereof for demountably receiving the hose reel spindles. The channels are accessible from thereabove when the locking structure is at the unlock position, and the channels are inaccessible from thereabove when the locking structure is at the lock position. Each of the sidewalls of the hose reel may have at least one straight outer edge, allowing the hose reel sit stably on a horizontal surface or a ramp.

Techniques for implementing and/or operating a system that includes a pipe drum, which has a drum shaft and a drum body that enables a pipe segment to be spooled on the pipe drum, and pipe deployment equipment. The pipe deployment equipment includes a brake disc, which has a shaft socket that is keyed to matingly interlock with the drum shaft to facilitate tying rotation of the pipe drum with rotation of the brake disc, and a spooling assembly that includes a motor shaft, in which the spooling assembly ties rotation of the motor shaft with the rotation of the brake disc to enable the pipe deployment equipment to actively rotate the brake disc in a first direction to facilitate spooling the pipe segment off of the pipe drum, to actively rotate the brake disc in a second direction to facilitate spooling the pipe segment onto the pipe drum, or both.

In a conventional method for extracting a cable, a power cable is reeled in by rotating a reel drum using a drive motor, and therefore there are cases where a power cable in a conduit cannot be extracted with the driving force of the drive motor when a large extraction force is required to extract the power cable from the conduit. The present invention is capable of directly transmitting, to a cable drum (5), a rotational force of rubber tires (9) whose outer circumferential portions are made of elastic rubber, by rotating the rubber tires (9) while bringing the rubber tires (9) into intimate contact with outer faces of the cable drum (5), and is capable of reliably rotating the cable drum (5).

A CIPP liner reel system for managing the utilization and deployment of CIPP liners. The CIPP liner reel system generally includes a frame connected to a reel and drive unit. The drive unit is connected to the reel to control the rotation of its core. This core contains an opening that provides access to a connector unit within the core. This connector unit can be used to connect the reel to the end of a CIPP liner using a strap. Rotation of the core causes CIPP liner to wind on to or unwind from the reel. The reel may also contain a left guide member and a right guide member to assist in controlling the process of winding and unwinding the CIPP liner. The frame may also include a tractor connector that enables the CIPP liner reel system to be coupled to and transported by a tractor without affecting its operation.

In accordance with example embodiments a hose reel system including a layout guide is provided.

Techniques for implementing and/or operating a system that includes a pipe drum, which has a drum shaft and a drum body that enables a pipe segment to be spooled on the pipe drum, and pipe deployment equipment. The pipe deployment equipment includes a brake disc, which has a shaft socket that is keyed to matingly interlock with the drum shaft to facilitate tying rotation of the pipe drum with rotation of the brake disc, and a spooling assembly that includes a motor shaft, in which the spooling assembly ties rotation of the motor shaft with the rotation of the brake disc to enable the pipe deployment equipment to actively rotate the brake disc in a first direction to facilitate spooling the pipe segment off of the pipe drum, to actively rotate the brake disc in a second direction to facilitate spooling the pipe segment onto the pipe drum, or both.