A fuel gas is desulfurized while hot by contact with a molten alkali salt. The salt is regenerated for further use by contact with a recirculating gas stream. The H.sub.2 S and COS picked up by the recirculating gas stream is scrubbed at low temperature in an aqueous alkaline salt scrub system such as hot potash. H.sub.2 S regenerated from the low temperature alkaline scrub system is subsequently converted to sulfur. By combining both high temperature and low temperature alkali scrubbing in a si...

A dual paver is composed of the tractors of a pair of typical single pavers, the tractors being linked in spaced side-by-side relation and fitted across their rear with a single-screed assembly of the floating type. Two types of the screed assembly are shown, one, an elongated rigid screed formed from the two individual screeds and a special rigid center section with a central crowning mechanism, and the other a "split" screed, also formed from the two individual screeds but with a center sectio...

To provide an immediate duplicate of an image projected by a beam of light onto a conventional film in a camera, a beam splitter is employed to reflect a portion of the beam to project the same image on "Polaroid" film in the camera.

A two piece nasal inhaler comprising an integral case with a cover hingedly joined and an insert for said case with two nostril shaped protuberances mounted on a housing with a channel extending through the protuberances and communicating with said housing. An air passage is provided to permit the flow of air through the housing and up through the protuberances.

The overcap comprises a receptacle adapted for snap fit over a can bead. The receptacle is provided with a snap-in cover, so held that the latter is retained during application or removal of the overcap.

The disclosed barrettes have two entirely separate face elements that are interconnected by supports, such that the interconnections are concealed in the wearer's hair. The visual effect is of two separate barrettes, with their relationship nearly preserved during wear. A single tongue is sufficient for "both barrettes".

The invention relates to a method and apparatus for improving the performance of back-to-back turbocompressor or turbopump systems, or, more generally, of internal-separation energy separators. A helicoidal or spiral baffle is used to impart simultaneously a positive prerotation to the flow which is to be de-energized and a negative prerotation to the flow which is to be energized.

A dual metallized capacitor and method for making the same. A single capacitor section is wound in the usual manner from two metallized films. After the winding has progressed through the proper number of turns for one of the capacitors, the metallized layer is burned from the surface of one film over a selected distance. An insulated sheet having a length sufficient to encircle the capacitor at least once, is inserted between the film layers to extend beyond one end of the wound cylinder. Windi...

A radar system, including a transmitter and receiver, comprising two crys-controlled oscillators oscillating at different frequencies, to accomplish the local oscillator function, the difference between the two frequencies being equal to the intermediate frequency (IF) of the receiver of the radar system when measured at the radio frequency (RF) of the radar transmission.

Two conventional wire staple cartridges are loaded in a stapler containing two staple drivers and a matching dual staple-clenching anvil. A mode selector allows selection between single staple operation is selected, a single manual motion drives and clinches two staples in a prescribed parallel pattern to securely fasten assembled sheets of material.