The present disclosure relates to a device for unstowing an electrical supply cable from a storage chamber disposed within an underground service pit. The cable is configured to electrically connect to an electrical power supply at a first end and to connect to an external power socket of an aircraft at a second end for supplying electrical power to the aircraft. The device includes a cable guiding wheel that is disposed at ground level above the underground service pit and configured to receive the cable. The device also includes a motor coupled to the cable guiding wheel that is configured to drive the cable guiding wheel. Upon activation, the motor rotates the cable guiding wheel to generate a pulling force on the cable to at least partially lift the cable out of the storage chamber.

Techniques for implementing and/or operating a pipe deployment system that includes pipe deployment equipment, in which a pipe drum having spooled thereon a pipe segment is to be loaded on the pipe deployment equipment, and a pulling device to be secured to an unspooled section of the pipe segment. The pulling device includes a device body having a first body arm and a second body arm, in which the device body is to be disposed around the unspooled section of the pipe segment, the first body arm is to be secured to a first cable branch, and the second body arm is to be secured to a second cable branch. The pulling device includes a first pipe grabber secured to the first body arm and a second pipe grabber secured to the second body arm such that the second pipe grabber and the first pipe grabber open towards one another.

A device for imparting a torsional force onto a wire has a base and a support mounted so as to be rotatable with respect to the base around an axis of rotation. The axis of rotation coincides with a wire path extending through the base and the support. Further, a wire clutching device is mounted on the support and adapted to engage at a wire guided along the wire path, and a rotation mechanism is provided which is adapted for rotating the support with respect to the base.

A consumable filler metal delivery system includes a reciprocating wire feeding gear assembly configured to move a wire forward and backward with a net forward motion and a motor configured to drive the reciprocating wire feeding gear assembly, wherein the motor is configured to rotate only in one direction during operation of the consumable filler metal delivery system.

A consumable filler metal delivery system includes a reciprocating wire feeding gear assembly configured to move a wire forward and backward with a net forward motion and a motor configured to drive the reciprocating wire feeding gear assembly, wherein the motor is configured to rotate only in one direction during operation of the consumable filler metal delivery system.

A single box type electric wire pushing and pulling machine is disclosed herein. It comprises a U-shaped shell having a first panel and a second panel, and an assembling socket accommodated in the U-shaped shell and having a first holder, a second holder, an adjusting rod disposed between the first holder and the second holder for adjusting the spacing, two extension parts respectively extended from an upper end and a lower end of the second holder, a gear axle hole defined by front ends of the two extension parts, two long troughs respectively disposed at a front end and a rear end of the second holder and two limit members correspondingly assembled to the two long troughs for respectively connecting with the first panel and the second panel of the U-shaped shell.

A single box type electric wire pushing and pulling machine is disclosed herein. It comprises a U-shaped shell having a first panel and a second panel, and an assembling socket accommodated in the U-shaped shell and having a first holder, a second holder, an adjusting rod disposed between the first holder and the second holder for adjusting the spacing, two extension parts respectively extended from an upper end and a lower end of the second holder, a gear axle hole defined by front ends of the two extension parts, two long troughs respectively disposed at a front end and a rear end of the second holder and two limit members correspondingly assembled to the two long troughs for respectively connecting with the first panel and the second panel of the U-shaped shell.

The present invention relates to a feeding control system of a 3D printer and a feeding control method thereof. The feeding control system, used with a filament, comprises a first feeding apparatus, a second feeding apparatus, and a feeding sensor. The first feeding apparatus comprises an outlet, a fixed wheel set, a movable wheel set, and a controller. The fixed wheel set and the movable wheel set hold and deliver the filament to the outlet. The controller is disposed corresponding to the movable wheel set. The second feeding apparatus is installed in the 3D printer. The feeding sensor is disposed corresponding to the second feeding apparatus and used to sense entrance of the filament to generate a release signal. After receiving the release signal, the controller drives the movable wheel set to move away from the fixed wheel set to release the filament.

A consumable filler metal delivery system includes a reciprocating wire feeding gear assembly configured to move a wire forward and backward with a net forward motion and a motor configured to drive the reciprocating wire feeding gear assembly, wherein the motor is configured to rotate only in one direction during operation of the consumable filler metal delivery system.

A consumable filler metal delivery system includes a reciprocating wire feeding gear assembly configured to move a wire forward and backward with a net forward motion and a motor configured to drive the reciprocating wire feeding gear assembly, wherein the motor is configured to rotate only in one direction during operation of the consumable filler metal delivery system.