Abstract: A welding electrode holder is provided. The welding electrode holder comprises a handle and electrode clamps extending nearly perpendicularly from the handle, thereby providing easy loading and unloading of electrodes, coupled with secure holding of the electrode during operation.

Abstract: Disclosed is an electrode holder to be used in welding that has a closed-end structure that removes the gripping problems inherent with open-jawed “tong-type” electrode holders. The electrode holder contains a grooved hole that allows tighter clamping onto an electrode, easing the process of bending an electrode by hand. The electrode holder also has a comfortable handle covered by a sleeve that keeps the electrode holder cool to the touch, allowing a welding lead to be fed through the sleeve and connected to the electrode holder without removing the handle of the electrode holder.

Abstract: A large-scale printhead is made up of rows of styli patterned onto thin glass substrates sandwiched together between rugged support substrates, in which a series of thin glass substrate sections are internally butted one to the other. Fabrication of multiple rows of elements is accomplished by stacking the delicate styli-bearing substrates on an associated rugged substrate. In a preferred embodiment, all glass substrates are utilized, with the transparency of the glass permitting accurate alignment of the styli or nibs. The use of glass substrates also increases the wear resistance of the completed printhead. A specialized bus matrix permits reduction in the width of the substrates carrying the styli, with the bus structure being formed on a single side of the substrate carrying the styli, such that thru-holes need not be provided through the thin substrates.

Abstract: A percussion welder includes a single acting main cylinder having a ram extending through both ends of the cylinder mounting a spring loaded chuck on one end of the ram and an adjustable return spring on its other end.An automated version includes a hollow ram for the main cylinder through which a stud to be welded is blown from an escapement in a vibratory feeder bowl. The escapement has two spaced guide rails which receive the studs in a single column and a block which slides transversely across the end of the rails to pick off a single stud and move it into alignment with a gush of air which blows the stud head first through a tube to the hollow ram. A chuck having a stationary and a movable clamp is mounted on the opposite end of the ram. An actuator is disposed adjacent the chuck and opens the chuck to permit the stud to pass therethrough and at the same time places a platform beneath the chuck to prevent the stud from exiting the chuck more than a selected distance.

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