Abstract: A score-sensitive basketball hoop apparatus is provided for sensing then announcing the by-passage of a basketball through the hoop. The sensor comprises a transmitting light and a photoelectric cell. When a ball passes through the hoop the transmitted beam of light is broken. A broken beam is detected and the by-passage of the ball through the hoop is signalled by lights fixed to the hoop and the score is registered on a scoreboard.

Abstract: An apparatus for continuously separating intermixed solids and liquids from industrial waste. The device includes an elongated conduit having an inlet and outlet and where the interior of the conduit forms a mixing chamber. The industrial waste is pumped into the inlet of the mixing chamber and a polyelectrolyte compound is introduced into the mixing chamber at at least two spaced locations along the conduit. The outlet of the conduit is then passed across both a stationary screen and then into a rotating drum separator, which, together, remove the water from the waste material.