Methods and apparatus to power a crane on a work truck using an engine-powered service pack are disclosed. An example auxiliary power system for a vehicle includes an engine, a generator configured to convert mechanical energy from the engine to electrical energy, and power conversion circuitry configured to provide electrical power to a crane to enable the crane to lift at least a portion of a rated load, and configured to convert the electrical energy from the generator to output DC power.

A tool less method of connecting a welding-type power source with a cart is disclosed. In some examples, the cart may be configured to carry one or more gas bottles (and/or cylinders). In some examples, the power source housing and the cart may connect at interfacing ends and/or walls of the housing and cart. A connector, such as a clip for example, may span the interface to connect the power source housing and the cart. Catches (e.g. slots, holes, crevices, and/or protrusions) may be formed in and/or on the power supply housing and/or cart proximate to the interfacing ends and/or walls. In some examples, the catches may be aligned. In some examples, the cart and/or power source housing may include alignment surfaces to assist with alignment. The connector may engage the aligned catches to connect the welding-type power source and cart together at the interface.

A cutting device capable of efficiently cutting an object with a simple configuration includes a grasp unit including a first grasper and a second grasper movable in an opening and closing directions to grasp the object, a cutting unit disposed side by side with the first and second graspers and moved in a cutting direction along the opening and closing directions to cut the object, and a position setter setting a cutting start position and a cutting end position based on respective positions of the first and second graspers that are grasping the object, respectively.

A transportable spool carrier includes a spool hub configured to receive a welding wire spool thereon. A handle is disposed a distance above the spool hub greater than the radial size of the spool hub such that the welding wire spool is transportable via the transportable spool carrier. The handle is vertically aligned with the longitudinal center portion of the spool hub axis to align the handle with a center of gravity of the welding wire spool when the welding wire spool is coupled to the transportable spool carrier. The transportable spool carrier may include two spaced feet configured to support the welding wire spool on a surface when the transportable spool carrier is decoupled from the frame. The spool hub may include an expandable cylinder that, when radially expanded the welding wire spool is locked to the spool hub.

A self-propelled welding carriage has a body supported by a wheeled suspension having a plurality of wheels including a carriage guide wheel having a tapered rim sized and shaped to roll in conforming contact with a carriage guiding seam of a workpiece, restricting lateral movement of the welding carriage for alignment with the carriage guiding seam. Welding equipment is mounted to the body, and has a welding torch for welding an unwelded seam of the workpiece. The welding torch is mounted to the body relative to the carriage guide wheel for disposition of a welding torch tip of the welding torch in alignment with the unwelded seam of the workpiece to weld the unwelded seam when the welding carriage moves with the carriage guide wheel rolling in the carriage guiding seam. The welding carriage has a motor coupled to drive the carriage guide wheel to propel the welding carriage.

A welding machine for welding together the tail of a billet to the head of a second billet along a feeding direction, the machine comprising a carriage adapted to slide along the feeding direction, said carriage supporting a first structure integrally fixed to said carriage; first clamping means, provided on said first structure, for clamping the head of the second billet; a second structure connected to the first structure and sliding, parallel to the feeding direction, with respect to both the first structure and the carriage; second clamping means, provided on said second structure, for clamping the tail of the first billet; wherein first adjustment means are provided for adjusting the position of the second structure with respect to the first structure along said feeding direction; and second adjustment means are provided for adjusting the position of the second structure with respect to the first structure on a plane transversal to the feeding direction, so as to align the second clamping means with the first clamping means along said feeding direction.

Welding carts with tool-less securing systems are disclosed. In some examples, a welding cart may be configured to retain and/or transport a welding-type power supply. The cart and power supply may have bracket holes configured to receive bracket ends of a securing bracket. The bracket ends may be received by the bracket holes when a shaft retaining the securing bracket is engaged with a rotational lock of the cart. An actuator connected to the shaft may be configured to rotate the shaft to engage the rotational lock. A resilient member may bias the bracket ends out of the bracket holes when the shaft is disengaged from the rotational lock. A captive fastener attached to the shaft may ensure that the shaft and bracket remain captive to the cart even when the shaft is disengaged from the rotational lock and/or the securing bracket is biased away from the cart.

In some aspects, autonomous motion devices configured to operably connect to a plasma torch of a plasma cutting system can include: a body to support a power supply of the plasma cutting system and move relative to a workpiece; a torch holder connected to the body and configured to position a plasma arc torch tip of the plasma torch relative to a region of the workpiece to be processed; a drive system to translate the body supporting the power supply and torch autonomously relative to a surface of the workpiece during a plasma processing operation; and a processor in communication with the drive system and configured to communicate with the power supply, the processor being configured to control the translation of the body relative to the workpiece in accordance with the plasma processing operation.

One box body is attached to an undercarriage of a trailer, and provided with a brazing area, a gastight testing area, and a finishing area aligned with one another in this order along a first side wall of the box body the brazing area, a plurality of members are bonded together by brazing to produce a half-finished product. In the gastight testing area, gas-tightness of the half-finished product is tested. In the finishing area, the half-finished product is covered with a thermal insulator to completely produce a pipe component. As a result, it becomes possible to properly dispose a working area, where the pipe component is produced, in the interior space of one box body without losing workability.

An automated pipeline-construction system and method for constructing a pipeline and laying constructed pipeline in various terrain conditions. The system has one or more pipeline-racking vehicles arranged in series for storing a plurality of pipeline joints, and a self-propelled pipeline-construction vehicle behind the pipeline-racking vehicles for receiving pipeline joints one-by-one therefrom and automatically coupling each received pipeline joint to the constructed pipeline through a pipeline construction and deployment process. A computing structure controls the pipeline-racking vehicles and pipeline-construction vehicle to align them at least laterally and to synchronously move forward for deploying the constructed pipeline. Each of the one or more pipeline-racking vehicles and the pipeline-construction vehicle may comprise a moving structure, and the computing structure may control the moving structures thereof for leveling the one or more pipeline-racking vehicles and the pipeline-construction vehicle.