Abstract: A shoe includes a shoe upper sized for receiving a range of foot sizes from a minimum foot size to a maximum foot size. A growth indicator is connected with the shoe upper and includes an indicator for indicating when the foot of a wearer is equal to or greater than the maximum size of the range of foot sizes.

Abstract: A shoe includes a shoe upper sized for receiving a range of foot sizes from a minimum foot size to a maximum foot size. A growth indicator is connected with the shoe upper and includes an indicator for indicating when the foot of a wearer is equal to or greater than the maximum size of the range of foot sizes.

Abstract: A shoe having an expandable shoe upper includes an outsole having a rear outsole and a front outsole and an expandable insole with a rear insole and a front insole. The front insole is movable relative to a length of the rear insole as the shoe upper expands from an unexpanded position to a fully expanded position. As the shoe upper expands, a gap is created between the heel and front outsole. At least one of the front insole and the rear insole covers the gap to protect a wearer's foot in an area of the gap when the shoe upper and expandable insole expand toward the fully expanded position.

Abstract: A shoe that includes an expansible inner lining that snugly conforms to the wearer's foot and that permits the wearer's foot to grow at least one shoe size, and preferably approximately two shoe sizes. The shoe may optionally include a midsole disposed between the insole and outsole. The shoe may also optionally include an expandable counter that permits the heel portion of the shoe to adapt as the wearer's foot grows. The inventive shoe thus permits the wearer's foot to grow or expand widthwise and/or lengthwise thereby reducing the frequency with which shoes must be replaced and without sacrificing fit, support and comfort. The expansible lining may be constructed of any four-way expandable, porous material. A transparent toe portion and a fit indicator may be provided to assist in determining when the wearer's foot has grown too large for the shoe.

Abstract: An outsole (10) for incorporation in a shoe or the like includes a generally shoe-shaped member of rubber-like material lower portion (14) contiguous with the lower surface of having an upper surface and a ground contacting bottom surface (19), the bottom surface (19) having a pair of depressed regions (21), (25) therein positioned for alignment with the heel and the ball of the foot, the bottom surface (19) surrounding the depressions (21), (25) and extending therebetween for supporting the foot about the ball and heel and in the shank region, respectively. In a preferred embodiment, the depressions (21, 25) are generally oval-shaped and concave, and generally triangular indentations (32) are formed in the bottom surface 19 on either side of the shank region (23), the ground contacting bottom surface (19) thereby presenting the general appearance of a figure eight.

Abstract: Tricalcium silicate materials useful in the production of Portland and other cements are prepared by melting a mixture of materials comprising basically line and silica in an electric furnace. The voltage between the electrodes and the conductivity of the melt are controlled so that a predetermined separation will be maintained between the lower end of the carbon electrode and the melt.

Abstract: A method is disclosed for obtaining useful products from cement kiln waste dust. The dust is collected and added to an electric arc furnace where it is melted. The temperatures required to melt the dust are sufficiently high that alkali sulfates present in the dust are volatilized, leaving a melt which has a composition acceptable for the production of cement clinker. The volatilized components are collected to form a second useful product; i.e., a potassium rich material suitable for the production of potassium bearing chemicals, such as fertilizers.