Abstract: A lamp comprising an arc envelope and a molybdenum-rhenium end structure coupled to the arc envelope.

Abstract: A lamp comprising an arc envelope and a niobium end structure coupled to the arc envelope, and wherein the end structure is shielded from a dosing material disposed within the arc envelope.

Abstract: A metal seal for a wellhead assembly has upper and lower legs extending in opposite directions from each other and a rib extending radially outward from a junction of the legs. A first conical band on the upper leg extends uninterrupted from the rib a selected distance toward a tip of the upper leg. A second conical band on the upper leg extends uninterrupted from the tip of the upper leg toward the first conical band. An annular recess is located between the first and second conical bands. The lower leg also has two conical seal bands separated by a recess.

Abstract: A metal seal for a wellhead assembly has upper and lower legs extending in opposite directions from each other and a rib extending radially outward from a junction of the legs. A first conical band on the upper leg extends uninterrupted from the rib a selected distance toward a tip of the upper leg. A second conical band on the upper leg extends uninterrupted from the tip of the upper leg toward the first conical band. An annular recess is located between the first and second conical bands. The lower leg also has two conical seal bands separated by a recess.

Abstract: A device automatically makes up a riser string from riser spools, each having an ancillary line and dog-type connectors. A support member supports a second riser spool for connection. A torque arm above the support member hinges open to accept a first riser spool and hinges close to engage the first spool and rotate the first spool to align its ancillary line with the ancillary line of the second spool. A guide arm above the support member hinges open to accept the first spool and hinges closed to engage and radially position the first spool while allowing vertical movement of the first spool. Connector actuators are positioned around the support member to actuate the connectors when the first spool is lowered onto the second spool.

Abstract: A master chart comprises a representation of various blocks (1) of color produced by suitable combinations of the base colors cyan, magenta, yellow and black (C,M,Y,K) . There are also illustrations of color prints (2) which are to be printed by a copying machine onto a sheet. For the color standardization procedure test sheets are provided onto which the images from the master chart are to be printed. These carry the same array of color blocks (1A) and picture representations (2A) but the block and color representations are offset with respect to the positioning of the corresponding blocks on the master chart. The operator compares the various color blocks against one another and make an estimation as to what adjustments are needed to the copier to ensure that a more acceptable print is achieved.