Abstract: A modified base construction for a high intensity arc discharge lamp is described enabling a single piece screw type conductive base member to be directly secured to the outer lamp envelope. The simplified base construction employs a conductive clip physically attached to the outer lamp envelope which provides a locking engagement between the assembled lamp parts.

Abstract: A method and apparatus is disclosed to produce a blown glass envelope on a ribbon machine having a self supporting closed end, said article being of a unitary, integral construction with glass wall thickness substantially less than that found in conventional pressed glass envelope. Said ribbon formed glass envelope has a cylindrical neck portion terminating at one end in a bulb portion of larger cross sectional dimensions and which includes the self supporting base end. The sides of said glass envelope can be curved or flat and with said self supporting base also being of a curved or planar contour. A novel mold construction permitting said glass envelope to be blown on a ribbon machine comprises a pair of cooperative halves forming the sides of the blown glass envelope in a central cavity in which further includes a separate base part located at the lower end of the said cavity to shape the self supporting base, said base part of the mold being provided with reciprocal motion in a vertical direction.

Abstract: A transport tray for ribbon formed glass articles such as lamp glass envelopes and glass containers is disclosed which permits increased packing density to be achieved when the article containing trays are vertically stacked for shipment. The tray member comprises a flat sheet having cavities formed therein which partially enclose one side of the individual glass articles when inserted therein and with the location of said cavities being defined by at least one central row having the glass articles aligned alternately in opposite longitudinal directions, together with a row of said glass articles being located at each end of said central row wherein the individual glass articles are aligned in a longitudinal direction transverse to the longitudinal direction of the glass articles in said central row. These trays are thereafter stacked vertically whereby adjoining trays are rotated approximately 180.degree. with respect to each other for the increased packing density.

Abstract: A method and apparatus is disclosed to produce a blown glass article on a ribbon machine having a self supporting closed end. Said ribbon formed glass envelope has a cylindrical neck portion terminating at one end in a bulb portion of larger cross sectional dimensions and which includes the self supporting base end. The sides of said glass envelope can be curved or flat and with said self supporting base also being of a curved or planar contour. A novel mold construction permitting said glass envelope to be blown on a ribbon machine comprises a pair of cooperative halves forming the sides of the blown glass envelope in a central cavity in which further includes a separate base part located at the lower end of said cavity to shape the self supporting base, said base part of the mold being provided with reciprocal motion in a vertical direction.

Abstract: A method for producing the type lamp glass envelope used in a reflector lamp is disclosed which employs a ribbon machine. Said ribbon formed lamp glass envelope includes a cylindrical neck portion terminating at one end in a curved reflector portion closed by an integral flattened face portion of lesser curvature with light distributing elements being formed on the exterior surface of said face portion. In its preferred embodiments, the reflector portion of said lamp glass envelope is of the PAR type which can further include truncation of the parabolic shape with opposing substantially flattened parallel surfaces as well as face portions for said lamp glass envelope which can be circular or rectangular in shape.

Abstract: A method and apparatus for producing the type lamp glass envelope used in a reflector lamp is disclosed which employs a ribbon machine. Said ribbon formed lamp glass envelope includes a cylindrical neck portion terminating at one end in a curved reflector portion closed by an integral flattened face portion of lesser curvature with light distributing elements being formed on the exterior surface of said face portion. In its preferred embodiments, the reflector portion of said lamp glass envelope is of the PAR type which can further include truncation of the parabolic shape with opposing substantially flattened parallel surfaces as well as face portions for said lamp glass envelope which can be circular or rectangular in shape.