Abstract: The apparatus has a plurality of open-ended female dies with a movable lower male die positioned in the lower end of each one. A supply box is shiftable over the female dies to deposit concrete therein, following which a plurality of upper male dies are moved down into the female dies to compact the concrete therein into chairs. Wire supply means feeds wires through the upper male dies and into the concrete in the female dies before the concrete is compacted. After the wires have been cut above the female dies, the upper male dies are retracted and the lower male dies are moved upwardly to eject the compacted chairs from the female dies.

Abstract: A machine for making elongated articles of concrete or the like having reinforcing members extending therethrough, and in which at least one spiral conveyor forces concrete under pressure through a mold causing the machine to move forwardly by reaction as the material is forced against the molded portion of the article. At least one elongated reinforcing member extends through the machine and the mold, and the machine is provided with a support tube extending to the mold to receive the reinforcing member and to support the latter as concrete is directed into the machine. The support tube preferably has a longitudinal slot therein and is mounted to rotate around a longitudinal axis so that the tube can be rotated between a position with a slot opening upwardly and a position with the slot opening downwardly.