Abstract: A collapsible mechanism for molding the bead of a tire includes a series of sectors configured for radial and diagonal movement to selectively apply a continuous, uniform surface for molding and shaping the bead. The sectors collapse into a retracted, release position to allow for placement of the tire within and removal of the tire from the mold.

Abstract: An iron composition and method for processing the composition that produces a steel alloy having enhanced low temperature toughness, without compromising other desirable mechanical properties, is described. The composition can be used to produce devices, such as saw chain, particularly useful for low temperature applications. In general, the steel composition comprises from about 0.2 weight percent to about 0.4 weight percent nickel, from about 0.2 to about 0.4 weight percent chromium, from about 0.5 weight percent to about 1.0 weight percent carbon, from about 0.3 to about 0.5 weight percent manganese, from about 0.1 to about 0.35 weight percent silicon, and from about 0.08 weight percent to about 0.20 weight percent molybdenum. After heat treating, the steel composition has an average fracture toughness of greater than about 42 ksi in.sup.1/2, and an average modified Charpy energy-to-failure of greater than about 2 ft.lbs at temperatures greater than about -20.degree. F.

Abstract: An iron composition and method for processing the composition that produces a steel alloy having enhanced low temperature toughness, without compromising other desirable mechanical properties, is described. The composition can be used to produce devices, such as saw chain, particularly useful for low temperature applications. In general, the steel composition comprises from about 0.2 weight percent to about 0.4 weight percent nickel, from about 0.2 to about 0.4 weight percent chromium, from about 0.5 weight percent to less than about 1.0 weight percent carbon, from about 0.3 to about 0.5 weight percent manganese, and from about 0.08 weight percent to about 0.20 weight percent molybdenum. After heat treating, the steel composition has an average fracture toughness of greater than about 42 ksi in.sup.1/2, and an average modified Charpy energy-to-failure of greater than about 2 ft.lbs at temperatures greater than about -20.degree. F.

Abstract: This invention provides compositions comprising a physiologically-active agent and a compound having the structural formula ##STR1## Wherein X may represent sulfur or two hydrogen atoms; R' is H or a lower alkyl group having 1-4 carbon atoms; m is 2-6; n is 0-18 and R is --Ch.sub.3, ##STR2## wherein R" is H or halogen, in an amount effective to enhance the penetration of the physiologically-active agent through the skin or other membrane of the body of an animal.