Abstract: There is disclosed auxiliary airplane seats which include a containment unit or housing having located therein a vertically movable seat back member provided on each side with a linkage including a guide pin which is guided in a guide located on the back panel of the containment unit. A seat bottom member provided on each side with a member having a slot which forms a track and which is movable vertically and horizontally is also disposed in the containment unit. The seat bottom member is guided on pins located on the side panels of the containment unit or housing and which pins are disposed in the slots of the members provided on the sides of the seat bottom of the track is also disposed in the containment unit. The vertical movement of the back member and vertical and horizontal movement of the seat bottom member may be assisted by a ring reel provided with a cable attached to the back member and to the ring reel.

Abstract: A chair, infinitely or incrementally adjustable between an upright seating mode and a full-recline mode, includes a concave seating portion continuous with a convex doubly-extensible leg support portion which combine to form an ergonomicly preferred seating attitude when the chair is in a full recline mode. A synchronous belt drive system extends and retracts the legrest and footrest portions and a passive/active height adjust mechanism is provided. The legrest and footrest portions are retained in a tuck position beneath the seating area of the chair when the chair is in an upright mode. A double extension leg support mechanism is provided for extending the legrest and footrest portions relative to the degree of recline.

Abstract: There is disclosed double airplane seats disposed in a side-by-side, inboard and outboard relationship with respect to their disposition in an airplane fuselage. The seats have a common base member provided with a pair of tracks on the bottom thereof which cooperate with a pair of tracks located on the floor of an airplane fuselage and which moves in a fore and aft direction. Fore and aft tracking is located on the top of the outboard portion of the base member and an opening is located in the top inboard portion thereof with a clutch located therein adapted to move universally in fore, aft and lateral directions.

Abstract: There is disclosed an airplane seat having a base member provided with a pair of tracks located on the bottom thereof which cooperate with a pair of tracks located on the floor of an airplane fuselage and which moves in a fore and aft direction. Located above the base member is an adjustable seat base and adjustable back member pivotally joined thereto. The seat base is connected through a shaft which cooperates with a clutch located in an opening in the top of the base and which permits universal movement of the seat base in fore, aft and lateral directions independently of the movement of the base member in a fore and aft direction.

Abstract: An aircraft mid-cabin divider comprises a double-bulkhead, a vertical wrapping-post within the double-bulkhead, and a wrap-around door having a series of parallel vertical panels flexibly interconnected wherein the first vertical panel is hingeably secured to the vertical wrapping post and a second vertical panel on the substantially opposite end of the door from the first one includes a handle and latch for directing the movement of the tambour door and latching the same about an opposing edge. To be placed in its stowed or open position, the tambour door is rolled backwards around the vertical wrapping-post and drawn between the double bulkheads. A passageway is provided within one of the double-bulkheads through which the door handle may be traversed while the door is inside of the bulkheads.

Abstract: An expandable volume lavatory is enclosed by a three-panel two-position hinged door. When the lavatory is unoccupied, two adjacent panels of the door may be positioned to fit flush with the surrounding wall or enclosure. When occupied, repositioning of the third panel of the door reconfigures the door to increase available lavatory space. The expandable volume lavatory has particular utility in areas where space is at a premium, particularly on board a vehicle such as an aicraft.

Abstract: Distillative separations of hydrocarbon feed mixtures containing at least methane and carbon dioxide, as well as other components, such as ethane, higher hydrocarbons, and hydrogen sulfide are disclosed. In the separations described, methane is preferably separated from an acid gas under conditions of composition, temperature and pressure which would normally produce acid gas solids. Acid gas solids are prevented by adding a liquid solids-preventing agent into this distillation column. A second distillation column is subsequently employed to further separate the feed gas mixture. The second distillation column is operated under conditions which an azeotrope would normally form between the light hydrocarbon and carbon dioxide, which azeotrope would limit the carbon dioxide overhead composition. The azeotrope is prevented by introducing an agent for preventing azeotrope formation. Alternatively, the second distillation column may be operated to separate carbon dioxide from hydrogen sulfide.

Abstract: A method for the distillative separation of a feed stream containing light hydrocarbons and acid gas components in a distillative column into an enriched overhead product, such as a carbondioxide fraction, and an enriched bottom product of C.sub.2 + and hydrogen sulfide, the method which comprises: introducing a liquid alkane additive into the column, to provide a relatively uniform, constant temperature zone in the column above the point of feed inlet of the feed stream; extracting heat from the upper portion of the low-temperature zone; and introducing heat into the lower portion of the temperature zone approximately at or above the feed inlet of the feed stream, to reduce the energy requirement of the distillation.

Abstract: An improved method for the distillation of a feed stream containing hydrocarbon components, which method is directed toward the production of a bottom product stream and an overhead product stream, both with desired specifications, which method comprises recycling a minor portion of the bottom product stream typically, but not necessarily, derived from said separation directly to a reflux condenser for the overhead product stream of said method, in order to effect a savings in energy in said distillative method, such as by adjusting the column operating conditions, such as the column operating pressure or the top or bottom operating temperatures of said column.

Abstract: A distillative separation of carbon dioxide and hydrogen sulfide is improved by adding a C.sub.3 -C.sub.6 alkane, a mixture of C.sub.3 -C.sub.6 alkanes, SO.sub.2 or SO.sub.3 to a distillation column to increase the relative volatility of carbon dioxide to hydrogen sulfide. Increasing the relative volatility facilitates the separation.

Abstract: An improved method for the distillation of a feed stream containing hydrocarbon components, which method is directed toward the production of a bottom product stream and an overhead product stream, both with desired specifications, which method comprises recycling a minor portion of the bottom product stream typically, but not necessarily, derived from said separation directly to a reflux condenser for the overhead product stream of said method, in order to effect a savings in energy in said distillative method, such as by adjusting the column operating conditions, such as the column operating pressure or the top or bottom operating temperatures of said column.

Abstract: An improved method for the distillation of a feed stream containing hydrocarbon components, which method is directed toward the production of a bottom product stream and an overhead product stream, both with desired specifications, which method comprises recycling a minor portion of the bottom product stream typically, but not necessarily, derived from said separation directly to a reflux condenser for the overhead product stream of said method, in order to effect a savings in energy in said distillative method, such as by adjusting the column operating conditions, such as the column operating pressure or the top or bottom operating temperatures of said column.