Abstract: A golf club swing training apparatus is used in perfecting a golf club swing. A vertically adjustable frame supports, in an upright position, a head positioning device and a swing arm. The head positioning device and the swing arm are each enabled for vertical position adjustment. The swing arm further provides a handgrip enabled for pivotal and rotational positioning. The frame further supports a resisting force producing device engaged with the swing arm and enabling a selectable swing biasing resistance force. A user-supporting platform provides visual foot locating means.

Abstract: An organic solvent soluble active agent containing water-insoluble hydrophilic hydrogel comprising a copolymer of (A) a water-soluble monoolefinic monomer or a mixture thereof optimally containing up to 50% thereof of one or more water-insoluble mono-olefinic monomers and (B) a terminally diolefinic hydrophobic macromer containing polypropylene oxide or polytetramethylene oxide units prepared in the presence of an effective macromer expanding amount of a macromer soluble compound of the formulaR'--R"--O.sub.n R"'where R', R", R"' and n are as defined in the claims, hydrogels useful in the loading of such active agents, their preparation, and use are disclosed.

Abstract: A process for the preparation of an ion exchange resin of higher porosity and purity is described. The porosity is achieved by inserting polar, preferably hydrolyzable linear polymer into the polymerizing phase. The insert is later extracted from the polymerized beads.