Abstract: Approaches herein provide a torch handle including a pneumatically controlled jaw operable to engage an electrode. In one approach, a system is provided for distributing gas within the torch handle, the system including a pneumatic cylinder within a main housing of the torch handle. The pneumatic cylinder is coupled to a shaft for actuating first and second members of the jaw. The system further includes a gas passageway through the main housing, the gas passageway extending to an exit orifice disposed within the second member. A flow controller, including first and second valves, is operable to direct a flow of a gas to either the pneumatic cylinder or the gas passageway. In one approach, the first member is actuated towards the second member when the gas is directed through the gas passageway, and actuated away from the second member when the gas is directed to the pneumatic cylinder.

Abstract: Approaches herein provide a torch handle including a pneumatically controlled jaw operable to engage an electrode. In one approach, a system is provided for distributing gas within the torch handle, the system including a pneumatic cylinder within a main housing of the torch handle. The pneumatic cylinder is coupled to a shaft for actuating a first member of a jaw relative to a second member of the jaw. The system further includes a gas passageway through the main housing, the gas passageway extending to an exit orifice disposed within the second member. A flow controller is operable to direct a flow of a gas to either the pneumatic cylinder or the gas passageway. In one approach, the first member is actuated towards the second member when the gas is directed through the gas passageway, and actuated away from the second member when the gas is directed to the pneumatic cylinder.

Abstract: Aspects of the present disclosure relate to improved laser metal deposition heads. Various embodiments may include a main body, a nozzle seat, a powder flow guide, an inner nozzle, an outer nozzle, and a coolant sleeve. In some embodiments, powder inlets in the main body are angled relative to a primary axis of the laser metal deposition head. In some embodiments, the nozzle seat includes a plurality of powder distribution channels that are also angled relative to the primary axis of the laser metal deposition head.

Abstract: In an electrode chip attachment device, a guide member which is formed such that the guide member can be divided into a first half member and a second half member with a division surface that is passed though the communication hole and that is parallel to the axial direction and a coupling shaft serving as a separate mechanism which separates the first half member and the second half member from each other when the chip holder is pushed into the first tapered portion and the second tapered portion from the opposite side of the electrode chip and which passes the chip holder to the side of the electrode chip.

Abstract: A treatment device is constituted of: an ultrasonic vibration element unit; a probe unit that can be attached or detached by rotating the ultrasonic vibration element unit, transmits ultrasonic vibration generated by the ultrasonic vibration element unit to a distal end side, and gives a treatment; a handle unit that has the probe unit penetrating therethrough and is configured to hold the probe unit so that its distal end extends; and a protruding portion provided to prevent the probe unit and the handle unit from relatively revolving around an axis of the probe, the handle unit including the probe unit that transmits the ultrasonic vibration and being attachable to/detachable from the ultrasonic vibration element unit.

Abstract: A chuck assembly, for use with a rotary power tool, includes a chuck body rotatable about an axis, a plurality of jaws supported by the chuck body for relative movement therewith between a retracted position for permitting insertion of a tool bit within the chuck body and an extended position for clamping the tool bit, a plurality of clamping nuts surrounding the chuck body and having interior threads engageable with corresponding threads on the respective jaws, a tightening sleeve surrounding and threadably engaged with the chuck body for relative rotation therewith, and a wedge defined on the tightening sleeve for selective engagement with the clamping nuts for inwardly displacing the clamping nuts, causing the respective threads on the clamping nuts and jaws to engage, in response to rotation of the tightening sleeve relative to the chuck body in a tightening direction.

Abstract: A semi-automatic brazing apparatus having a brazing wire feeding apparatus containing a brazing wire feed mechanism a controller, and a user input device. The brazing wire from a brazing wire source is continuously drawn from the source through the apparatus via the feeding mechanism and is directed towards a brazing gun for a semi-automatic brazing operation.

Abstract: One embodiment of a welding rod expander assembly is useful for expanding a welding rod to a remote location. The welding rod expander assembly may include a first attachment member, a second attachment member, at least one elongated member and a welding rod holder. The second attachment member may be pivotally carried by the first attachment member. Further the at least one elongated member may have an external threaded end portion and a connecting end portion. The welding rod holder may be carried by the second attachment member. The welding rod holder may include a holding unit carried by the second internal threaded portion. The holding unit may be capable of receiving the welding rod. The welding rod holder may further include a clamping unit disposed on the second internal threaded portion. Further, the welding rod secured in the holding unit may be capable of expanding to the remote location.

Abstract: A welding assembly including a current generator, an electrode electrically coupled to the current generator, the electrode including a first engagement surface, and a workpiece including at least two members, wherein at least one of the members includes a second engagement surface, defines a recess in the second engagement surface, and is electrically coupled to the current generator.

Abstract: A welding assembly including a current generator, an electrode electrically coupled to the current generator, the electrode including a first engagement surface, and a workpiece including at least two members, wherein at least one of the members includes a second engagement surface, defines a recess in the second engagement surface, and is electrically coupled to the current generator.

Abstract: A system and method for performing a welding-type process includes a welding-type torch having a first electrode connected to receive a welding-type power to effectuate a welding-type process. The welding-type torch also includes a second electrode connected to receive a starting power to initiate the welding-type process and a nozzle surrounding at least a portion of the first electrode.

Abstract: A system and method for performing a welding-type process includes a welding-type torch having a first electrode connected to receive a welding-type power to effectuate a welding-type process. The welding-type torch also includes a second electrode connected to receive a starting power to initiate the welding-type process and a nozzle surrounding at least a portion of the first electrode.

Abstract: An ergonomic handle attachment to be used with a welding torch handle, the attachment has an attachment portion which is selectively attached to a wall of the handle; a hand grip portion which is selectively attached to the attachment portion, and, a locking member extending from the hand grip portion which is slidably received within an opening of the attachment portion.

Abstract: An ergonomic handle attachment to be used with a welding torch handle, the attachment has an attachment portion having a first wall that is selectively attached to a wall of the handle and a second wall which extends from the first wall and is selectively received by an opening in the wall of the handle. A locking member is slidably received within the opening of the second wall and the wall of the handle when the opening of the second wall and the opening of handle are substantially aligned with each other.

Abstract: An over-handle is mounted on a rotor-ring for rotation around the handle of the torch. The accessory is for use with a torch of the kind in which a (coated) electrode is mounted in an electrode holder, and is tightened therein by the welder screwing the holder into the torch handle. The orientation of the electrode relative to the handle is unpredictable, and the rotatable over-handle enables the over-handle to be orientated to suit the orientation of the electrode. A rotatable accessory in the form of a pick hammer is also disclosed.

Abstract: A welding system having a welding gun with a handle. The handle has a first end and a second end. The handle may be operable to receive a welding cable from a first and a second direction, respectively. The handle may be operable to position a trigger in any one of four quadrants of the handle. The handle may increase in cross-sectional area in each direction from a gripping portion located between the first and second ends towards the first and second ends.

Abstract: A welding torch having a torch body that is adapted to receive a welding electrode. A collet and collet body, or other mechanism, may be used to secure the electrode to the torch body. The welding torch has a handle that is securable to the torch body, but which may be selectively removed from the torch body. The welding torch may be operated with the handle removed. The welding torch is adapted to prevent arcing from the torch body to a surrounding surface when the handle is removed. The welding torch also may have a cable that is adapted to convey gas and electricity that is affixed to the torch body. The torch body may have an electrical connector disposed within the torch body for connection to the cable operable to convey gas and electricity. The cable and torch may also be adapted to provide cooling water to the torch body. The torch body may also be flexible.

Abstract: The attachment provides an overhandle, which overlies the handle of the torch, thereby creating a tapering space. The welder places the first web area of the hand into the space, whereupon the connection between the hand and the torch is made more secure. The welder can manipulate the torch, without the need to exert a constant tight gripping force on the torch. The attachment includes side-cheeks which provide even more of a constraining connection between the hand and the torch. The attachment is adjustable as to position and angle with respect to the torch.

Abstract: An improved welding torch wherein the connection between the torch body and handle is a frictional engagement and prevents any relative rotational movement of the torch handle and body while additionally providing an indexing mechanism for selective alignment of the torch body with a variety of surface contours on the torch handle. The torch body includes a plurality of radially projecting handle engagement ribs thereon and a radially projecting indexing pin receivable in one or more axial grooves in an end wall of the handle. The grooves are radially aligned with different surface contours on the handle such that when the handle is in place on the torch body, the ribs frictionally engage the handle and the indexing pin is disposed in one of the grooves preventing inadvertent relative rotation of the torch handle and body and aligning a selected handle contour with the torch body.

Abstract: An insulative grip for a TIG torch is held in a person's fingers like a pen or pencil. The grip has an external contour that has multiple gripping areas. The size and shape of the gripping areas conform to the person's thumb and first two fingers when he holds the grip. The gripping areas reduce the tendency for the torch to move in the person's hand. The gripping areas also provide an indication of the orientation in space of the torch electrode when the person holds the torch. The torch may be either water-cooled or air-cooled.

Abstract: A torch for a carbon electrode, the torch having a body with a conductive electrode support affixed to the forward end and means at the rearward end for attachment of a voltage source and air pressure, the body and electrode having a passageway for ejection of air forwardly of and along the electrode, a pair of elongated paralleled bail members extending from the body and to either side of the electrode support and an electrode engagement member secured between the outer ends of the bail members, the carbon electrode being receivable between the electrode engagement member and the electrode support, the bail members being deflected towards the electrode support thereby retaining the electrode in selected positions and wherein the user positions the carbon electrode by deflecting the bail members rearwardly relative to the electrode support.

Abstract: An arc cutting and gouging torch in combination with nozzle assemblies for suspending a carbon electrode and discharging a combined air stream relative to the carbon electrode centerline. The nozzle assemblies include exit orifices which are disposed in a non-parallel alignment relative to one another and the electrode to cause the air jet discharged from each exit orifice to merge at a location upstream of the arc and substantially about the centerline of the electrode.

Abstract: A chipper head is removably affixed to the holder head of a welding rod holder in an area spaced from and opposite the point of support of a welding rod whereby the welding rod holder functions as a combination welding rod holder and chipper hammer.

Abstract: A holder for a cylindrical carbon arc electrode, comprising an elongated body of selected metal, having a forward and a rearward end, and a tubular handle attached to the bottom surface, at a selected angle. The top surface of the body has a longitudinal groove adapted to receive a cylindrical electrode and hold it co-linear with the top surface of the body. A quick-acting toggle clamp or latch means is provided, so that by simply pivoting a wire lever the latch can be loosened, and the position of the electrode in the groove can be altered. Various shapes and constructions can be provided, and the bail of the clamp can press directly on the electrode, or through means of metal blocks, etc.

Abstract: Welding torch comprises a combination collet body which functions interchangeably for electric arc welding, of the open arc type using a consumable electrode, or for inert gas shielded welding using a non-consumable electrode. The collet body has a screw-threaded collar at one end which is screwed into the welding head. At the other end, it has a slitted or splined chuck. The slightly enlarged central body portion between the collar and the chuck includes a plurality of gas vents. For open arc welding, a consumable electrode, interposed into the chuck, is secured in place by a constricting metal adapter sleeve which also serves to close the gas vents. For inert gas shielded welding, the consumable electrode and the metal adapter are replaced by a nonconsumable electrode and a ceramic shield open at one end. The open vents permit inert gas to escape under the ceramic shield and surround the nonconsumable electrode during the welding process.

Abstract: An improvement in a powder metallurgic manufacturing process where metal powder is compressed and heated in a mould and heat is produced by conducting electric current through the mould and the metal powder as well as through at least one electrically resistive fireproof body in actual contact with the mould where heat produced in the body is transferred to the mould and the metal powder. The improvement comprises maintaining electric tension between 2 and 200 volts; the current efficiency per unit volume of the mould between 20 and 200 W/cm.sup.3 ; and the resistivity of the electrically resistive fireproof body between 0.03 and 100 ohm .times. cm.

Abstract: An electrode holder to be connected to a welding current cable and having a pair of jaw support members pivoted to a tubular member therebetween which has a bore receiving said cable, the cable being connected by separate conductors to electrode gripping jaw pieces in said support members, and a pair of springs separately urging the respective jaw support members about said pivot to bring the jaw pieces together and clamp an electrode therebetween, the ends of the springs being supported in a collar which surrounds the tubular member and is adjustable longitudinally thereof to adjust the spring pressure closing said jaw pieces.

Abstract: A holder for a carbon arc electrode: the holder having an elongated body with an opening therethrough in which the electrode is positioned, the body having a slot in the lower end thereof communicating with the opening, the opening being defined in cross-section such that the portion adjacent the slot provides opposed uniplanar ledges to either side of the slot, the plane of the ledges being tapered relative to the axis of the opening through the body; a slide block of length less than the body, the slide block being configured to be slidably positioned in the opening in the body, the bottom of the slide block being an engagement with the ledges, slide block having an electrode engaging upper surface which has a taper of the same angle as the taper of the ledges, the taper being oppositely inclined to that of the ledges so that the electrode engaging surface is parallel to the axis of the opening through the body so that the electrode is contacted by increased pressure as the slide block moves forwardly in th

Abstract: A holder for a consumable electrode used to cut metal by means of an electric arc is disclosed. The holder has an elongated barrel for containing the electrode and a pistol grip depending from the barrel for supplying electrical energy to the electrode. The exposed length of the electrode can be adjusted by a ram which slides in the barrel behind the electrode and which cooperates with clamping means actuated by a trigger on the pistol grip to secure the electrode at any adjusted length. Compressed air and electrical energy are supplied to the base of the pistol grip and are respectively communicated to a nozzle at the front end of the barrel and to the electrode. The nozzle is mounted for rotation relative to the electrode and has orifices for ejecting the air along any desired side of the electrode. Manifold means in the nozzle insures a continuous supply of compressed air to the orifices irrespective of the angular position of the nozzle.

Abstract: An electric welding torch adapted to hold an electrode comprises a helically fluted tube made of flexible material and adapted to surround a portion of the electrode inserted in the tube. Means is provided for mounting the tube in the torch and permitting relative rotation of displaced portions of the tube along the electrode for selectively holding the electrode in the tube by physical engagement of helical land portions of the tube against the surface of the electrode and for releasing the electrode by twisting of the tube in a direction opposite that of the spiral flutes or by application of axial compression of the tube.