Abstract: A cymbal adjustment structure includes an upper tray, a lower tray and a nut. The upper tray has an aperture and an upper duct and a lower duct. The lower duct has a pair of troughs and holds an elastic element and a holding member inside. The lower tray is coupled outside the lower duct and has a boss on the top thereof to run through the aperture to push a lower cymbal mounted onto the upper tray at an inclined angle. The nut is fastened to the periphery of the lower tray. The lower tray is fastened to the holding member through a fastening element running through the trough. Hence by turning the nut the lower tray can be moved and adjusted upwards and downwards to allow the boss to push the washer at the bottom of the lower cymbal.

Abstract: A method of manufacturing shoe outsoles from waste plant fibers includes steps of: bleaching plant fiber powders; activating the plant fiber powders through a graft reaction process; mixing the plant fiber powders and recycle rubber powders to enhance physical properties of the plant fiber powders; adding a homogenizing agent to fully blend the hydrophilic plant fiber powders and the lipophilic recycle rubber powders to form a recycled material; mixing the recycled material and thermoplastic rubber into a mixture; aging the mixture for an aging time; granulating the mixture; and producing a shoe outsole through an injection molding process. Thus a novel approach is provided to produce shoe products. Waste plants or rubber can be recycled to improve environmental conservation and protection.

Abstract: The present invention discloses an octave-key transfer-bar protection device, which is installed on a saxophone to protect an octave-key transfer-bar on the saxophone, and which comprises a structure body, and a collision-protection bar arranged on the structure body and encircling an accommodation space. The structure body is fixed to the external surface of the saxophone. The octave-key transfer-bar is arranged inside the accommodation space and encircled by the collision-protection bar. The collision-protection bar can protect the octave-key transfer-bar from being deformed by collision. Thus, the performer can correctly lower or raise the gamut via the octave-key transfer-bar.