Abstract: An electrode E is manufactured through a series of steps that lend themselves to implementation on a machine tool. Electrode components 100, 158, 190 are joined or welded to other electrode components 62, 100, 158 and then cut to length from a continuous supply of material. Windings of a coil 170 with a relatively narrow inner diameter 174 are opened in a rotating step so that the coil can tightly engage a component 158 having a larger outer diameter 178.

Abstract: A generally cylindrically shaped feeder having a feeder housing defining a cavity bounded by an inner surface having a plurality of spiral grooves spaced apart from each other and extending from a front end to a back end of the inner surface of the feeder housing. A generally cone shaped end cap is dimensioned such that a cone base engages the back end of said cylindrically shaped feeder housing. The cap has an inner surface which faces the cavity and forms a plurality of grooves cut into the inner surface which extend radially from a cone top to the cone base and are spaced about a periphery of the end cap to align with corresponding spiral grooves in the feeder housing. A drive rotates the cylindrically shaped feeder about an axis of rotation to move parts along the pluralite of spiral grooves to the pluralite of radial grooves for delivery to a discharge zone at the top of said cone.

Abstract: A method of manufacture for a lamp involves making up, separate from an envelope, a sub-assembly comprising a lead structure and a vitreous body that surrounds it. In one form of this method, particles of vitreous material are pressed into a mold cavity that surrounds the lead structure, thus forming a compact surrounding the lead structure. This compact is sintered in an inert atmosphere, thereby forming the sub-assembly. Thereafter, the sub-assembly is placed in an opening in the envelope, and a hermetic seal is made between the envelope and the vitreous body in the interface region between the envelope and the vitreous body.

Abstract: This lamp comprises (1) an envelope of vitreous light-transmitting material enclosing an internal space where light is generated and (ii) conductive lead structure projecting into said internal space. Surrounding and sealed to said lead structure is a body of vitreous material formed of particles of vitreous material pressed together and sintered. This body extends through an opening in the envelope that communicates with said internal space. A hermetic seal is provided between said envelope and said body in the interface region between said envelope and said body.