Abstract: A low tire pressure warning system for a trailer having a frame for supporting the body of the trailer, having tandem axles equipped with normally inflated pneumatic tires, leaf spring suspension structure for the axles including a walking beam that is pivoted on the frame for tilting movement in opposite directions from a normal position in accordance with the deflation of a tire of either one of the axles, a signal member for indicating that one of the tires doesn't have enough air, a signal operating switch in circuit with the signal member, and mechanical actuating structure for the signal operating switch.

Abstract: Thiol impurities are removed from hydrocarbon oils by contacting the oil with a scavenger at a temperature in the range of about 120.degree. to 400.degree. C. The scavenger is a composite having a copper component and an inorganic porous carrier component and having a surface area in the range 20 to 1000 square meters per gram. The contacting must be with the scavenger below its thiol-sulfur end point.

Abstract: An improved slant axis rotary mechanism including a housing defining an operating chamber, the operating chamber having an outer spherical wall, an inner spherical wall and opposed, generally radially extending end walls extending between the inner and outer spherical walls. A rotor is located within the chamber and includes a spherical hub carrying seals engaging the inner spherical wall and an annular flange carrying seals engaging both the end and outer spherical walls. A shaft is journalled in the housing and has an angularly offset portion within the chamber which, in turn, journals the rotor and gears carried by the rotor and the housing establish a timed rotary relationship between the shaft and the rotor. At least one elongated slot is provided in one of the walls and opens into the chamber. Means are provided for supplying a lubricant to the slot for lubricating the seal on the rotor engaging the wall having the slot.

Abstract: A caulking spout through which caulk may be dispensed from a dispenser into a corner joint at various angles of attack without an accompanying substantial change in the shape of the bead of caulk being dispensed. The spout comprises a body having a neck elongated along a body axis merging with a rounded tip traversing the axis and an outlet orifice formed in the rounded tip to one side of and off the body axis. An inlet orifice is formed in the end of the elongated neck distal the rounded tip. A channel communicates between the inlet and outlet orifices with a first channel portion extending from the inlet orifice along the body axis and merging with a second channel portion which diverges from the body axis and terminates at the outlet orifice.

Abstract: A foot warmer constructed of a stiff insulating foam material such as polystyrene, is illustrated having a displaceable front end panel providing an opening when displaced for receiving a wearer's shoe, boot, and the like enabling the foot warmer to be readily placed upon the foot and the front end panel replaced to thus provide a foot warmer wherein insulation extends about the leg of the wearer at least as far up as the area of the ankle to provide an effective foot warmer.

Abstract: A rotary engine having a high surface to volume ratio including a housing having intake and exhaust ports and defining a chamber, a shaft journalled in the housing to extend therethrough and having an eccentric within the chamber, and a rotor on the eccentric within the chamber, the rotor having a body consisting essentially of a material having a low coefficient of thermal conductivity.

Abstract: An improved rotary engine including a housing having walls defining an operating chamber, a prechamber within the housing, an opening in one of the walls establishing fluid communication between the chamber and the prechamber, and means for introducing fuel into the prechamber. A shaft is journalled in the housing and extends through the chamber while a rotor is journalled on the shaft and within the chamber. The rotor has a surface cyclically brought into proximity with the wall including the opening and the opening therein for cyclically compressing an oxygen-containing medium within the prechamber. Means, including a portion of the surface, are employed for varying the effective size of the opening to thereby control the flow of combustion gases from the prechamber to the chamber at a desired rate to achieve a desired combustion characteristic.

Abstract: A hydrocarbon feed containing an olefinic component and sulfur-containing impurities is upgraded in a sulfur removal process without hydrogenating the olefins by contacting a mixture of the feed and hydrogen gas with a catalyst comprising copper under conditions, including a temperature in the range of about 120.degree. C to 400.degree. C.

Abstract: An improved corner seal for rotary mechanisms, such as trochoidal or slant axis rotary mechanisms. The mechanism includes a housing defining a chamber with a rotor movable therein. The rotor includes a piston seal receiving bore and a piston seal is received in the bore and sealingly engages one wall of the chamber. An apex seal receiving groove is located in the rotor and intersects the bore. An apex seal is received in the groove and sealingly engages another wall of the chamber. A ring-like expander seal is within the bore and sealingly engages the piston seal and the bore when gas under pressure is directed to the bore from the groove.

Abstract: A process is disclosed for regenerating a solid reactant comprising a copper component and a chromium component disposed on a porous carbon support when the reactant has been expended by reaction with hydrogen sulfide contained in hydrogen recycle gas in a hydrocarbon reforming system, regeneration being accomplished by: (a) contacting the expended solid reactant with dilute oxygen in an inert diluent gas at a temperature in the range from 200.degree. to 425.degree. F; (b) contacting the solid material from step (a) with hydrogen at a temperature in the range from 300.degree. to 500.degree. F; and (c) contacting the solid material resulting from step (b) with an inert gas at a temperature in the range from 400.degree. to 600.degree. F.

Abstract: An improved slant axis rotary mechanism of the type including a housing, a shaft journalled in the housing, an angularly offset portion on the shaft and a rotor journalled on the angularly offset portion. The angularly offset portion includes a peripheral thrust collar and the rotor is formed of two pieces which sandwich the thrust collar. One of the rotor pieces includes a central cavity spaced from the angularly offset portion and a plurality of bolts are within the cavity and secure the pieces of the rotor together.

Abstract: A method and apparatus for harvesting crops, such as mushrooms, wherein the method comprehends the growing of the crops in rows and the apparatus has a mobile frame adapted for transport along the row; a driven picking assembly mounted on the frame for rotational movement about an axis extending substantially transversely of the frame and having pairs of opposed, radially extending arms mounted thereon for pivotal movement toward and from each other; guides borne by the frame defining first paths of travel for the pairs of arms laterally of a picking station and second paths of travel for the pairs of arms toward each other into juxtaposition in the picking station; a sensing mechanism mounted on the frame adapted to detect crops in the row of predetermined maturity; and a control mechanism borne by the frame interconnecting the sensing mechanism and the guides adapted to direct a pair of opposed arms into the second paths of travel upon detection of a mature drop to pick the crop in the picking station.