Abstract: A ball tossing device for batting practice comprises a self-contained, pneumatically controlled and actuated mechanism. The device includes a launcher comprising a pneumatic cylinder and ball carrier and a trough type feeder for sequentially supplying balls to the carrier for tossing. The pneumatic cylinder is actuated by compressed air from a regulated source of compressed air, with timer means which controls actuation of a valve to transmit the compressed air to the cylinder. The cylinder is a single action type with a return spring. The launcher may be angularly variable for non-vertical tosses.

Abstract: A model gun with automatic bullet supplying mechanism comprises a pressure accumulating chamber from which a gas leading passage extends, a slider movable along a barrel structure, a pressure receiving portion fixed in the slider at the back of the barrel structure, a movable member provided with first and second inner spaces and arranged at the back of a bullet holding chamber, and a movable valve provided in the first inner space formed in the movable member.

Abstract: Composite spherical projectiles are provided for shotgun cartridges which are environmentally compatible, relatively inexpensive and have ballistic properties similar to lead shot or projectiles and which consist of metal particles dispersed in a biogradable polymeric solid matrix which includes a hydrocarbon binder containing ester functional groups which are linked to C.sub.1-20 aliphatic hydrocarbon chains, starch, and titanium dioxide.

Abstract: An improved animal chew comprising a low voltage battery and various conductors such that when an animal chews on the present invention an electrical circuit is formed and a micro-current flows. This micro-current has therapeutic effects on the animal's teeth and gums, and optionally, low concentrations of certain trace metals are released which similarly have beneficial results regarding the animal's oral hygiene. In addition, upon chewing, calcium ions and/or fluoride ions can be discharged. Finally, in optional embodiment, ultrasonic sound waves can be generated when an animal chews on the present invention which further assists in removal of plaque from the animal's teeth and gums.

Abstract: A vase includes a tire and one of the two sidewalls of the tire is cut into multiple partitions, a board connected to the other sidewall and, a frame fixedly connected to the partitions. The frame has a neck to be fixedly connected to the partitions by bolts, and a plurality lugs extend from the neck, wherein each lug is located between adjacent partitions. A plurality of plates are attached to the outside of the sidewall and are fixedly connected to the lugs by bolts. Soil is filled between the partitions, the board and the frame, and a plant is planted in the soil.