Apparatus for making ready-mixed concrete

Apparatus for delivering batches of ready-mixed concrete materials from a bunker to concrete mixer trucks comprising:

• a carrier structure including a central tower having a vertical axis and an elevated cross arm structure,
• said cross arm structure including a plurality of arms extending radially outwardly from said axis of said central tower and angularly spaced apart from each other and said axis at regular angular intervals;
• a plurality of transfer containers, at least one transfer container mounted on each of said arms, each transfer container comprising a plurality of separate material storage compartments therein and each container having a closeable outlet at the bottom thereof;
• actuating means on said apparatus for operating said outlets;
• drive means for effecting rotation of said cross arm structure relative to said axis to move said transfer containers along a closed circular path of movement around said axis between a filling station and a plurality of other stations along said path, including at least one emptying station above a position whereat a concrete mixer truck having positive mixing tools therein can be accommodated,
• said drive means including indexing means for effecting rotation of said cross arm structure in indexed incremental amounts corresponding to the distance between each adjacent pair of stations;
• conveyor means located clear of said circular path of movement of said transfer container and clear of said cross arm structure for conveying material from said bunker to a position above said filling station for delivery to a transfer container thereat;
• and an operator's control station including operator-actuated controls connected for operating said conveyor and said drive means.