Abstract: A golf improvement system comprises a club and course registration form containing information about a course including par of each hole and distance from a tee to a green; a player score card for recording a round of golf played by the player on the course, the score card including a plurality of circles corresponding to each hole, each circle when filled in corresponding to a data entry concerning the hole being played; a computerized database containing information from the club and registration form, the player score card, and information on the player's peer group; and a report generated by the computerized database and containing statistics on the player's playing skills.

Abstract: A golf improvement system comprises a club and course registration form containing information about a course including par of each hole and distance from a tee to a green; a player score card for recording a round of golf played by the player on the course, the score card including a plurality of circles corresponding to each hole, each circle when filled in corresponding to a data entry concerning the hole being played; a computerized database containing information from the club and registration form, the player score card, and information on the player's peer group; and a report generated by the computerized database and containing statistics on the player's playing skills.

Abstract: This invention embodies compositions comprising herbicidally effective compounds corresponding to the formula ##STR1## in which R.sub.1 and R.sub.2 are independently methyl or ethyl,X is H, methyl, chlorine, bromine, fluorine;Y is chlorine, bromine, fluorine;andn is 0, 1 or 2and a non-phytotoxic antidotally effective amount of an antidote therefor selected from the group of amides of haloalkanoic acids, including oxazolidines and thiazolidines, aromatic oxime derivatives, thiazole carboxylic acids and derivatives, substituted phenylpyrimidines, 2-(dichloroacetyl)-2-methyl-1,3-dioxolane and 2-(dichloromethyl)-2-thiazoline.

Abstract: A cascade aerator comprising a trough having a low profile slope of from 4.degree. to 5.5.degree.. The trough is divided into a plurality of adjacent longitudinal channels. A flow control weir is mounted at the head of each of the channels and the height of the weirs increases form one channel to the next. Low head baffles are mounted in spaced relationship and transversely of the longitudinal channels.

Abstract: An adjustable-flow floating weir assembly is provided for regulating the flow of liquid out of a basin which receives a constant or variable flow of liquid. The weir assembly communicates with the exterior of the basin and has notches through which liquid from the basin flows into the weir assembly. The buoyancy of the weir assembly can be changed to correspondingly vary the vertical position of the weir assembly relative to the liquid level in the basin to thereby regulate the flow of liquid through the notches into the weir assembly and to the exterior of the basin.

Abstract: The present invention is a secondary recovery system normally used for retrieving oil from the producing zone after the bottom hole pressure has decreased so that artificial lift is required for production. An accumulator is positioned in the lower portion of the casing where oil will accumulate from the producing zone. A standing valve is located in the bottom of the accumulator to prevent oil collected therein from leaving the accumulator. Above the accumulator is located a free floating piston having passageways therethrough. By proper control of the pressure line from the surface, oil is gradually moved through the free floating piston into a production tubing thereabove. Next, again in response to surface control, the free floating piston and oil collected thereabove is moved to the surface of the well by a rapid pressurization of the accumulator. Thereafter, pressure is exhausted from the accumulator allowing the piston to drop back to its lowermost position immediately above the accumulator.

Abstract: An apparatus for retrieving oil from a producing zone after the bottom hole pressure has decreased to such an extent that artificial lift is required for production. An accumulator is provided by casing sealed off with a packer, or an accumulation chamber located in the area of the casing where oil accumulates. The uppermost portion of the accumulator is vented to atmosphere to allow oil flow therein. A floating piston-type device may be located immediately above the accumulator with a bypass from the accumulator to the top of the floating piston. Pressure is subsequently applied through the vent line to the accumulator to force oil from the accumulator through a stinger tube above the floating piston and subsequently raise the oil and floating piston to the surface. Without the piston, a stinger tube and standing valve may be used to accumulate oil in the production tubing. The vent line may be located inside the production line with the upper casing being used as a pressure storage tank.

Abstract: An apparatus for retrieving oil from a producing zone after the bottom hole pressure has decreased to such an extent that artificial lift is required for production. An accumulator is positioned in the area of the casing where oil accumulates with the uppermost portion being vented to atmosphere to allow oil flow therein. A floating piston-type device may be located immediately above the accumulator with a bypass from the accumulator to the top of the floating piston. Pressure is subsequently applied through the vent line to the accumulator to force oil from the accumulator through a stinger tube above the floating piston and subsequently raise the oil and floating piston to the surface. Without the piston, a stinger tube and standing valve may be used to accumulate oil in the production tubing.