Abstract: A novel lifting and carriage apparatus to lift, support, and move heavy objects about in close or crowded environments is provided with a cantilevered arm support means to support the object, a means for rotating the arm and a means to lift and lower the arm. The rotation and lifting functions may be accomplished by motorized means. The apparatus is attachable to a floor mounted base plate and may be easily removed and secured to another base plate.

Abstract: To avoid disputes as to which players have the next turn to use a tennis court, a container is mounted at a convenient location such as on the fence surrounding the court. The player deposits a suitably distinctively marked ball in the open top of the container, resting on previously deposited balls. A stop spaced below the open bottom of the container prevents balls from dropping out. The gap between the stop and the bottom edge of the container is slightly less than the diameter of the ball; however, when the bottom ball is pulled, it distorts sufficiently to pemit removal.