Abstract: A vibrator arrangement for building soil improvement includes a sluice with a silo tube and a sluice drive for moving the sluice. The sluice is adapted to receive a bulk material and to guide the bulk material into the silo tube. A feed container for feeding the bulk material to the sluice is included and a feed container drive is provided for moving the feed container between a waiting position and an abutment position at the sluice. Also, a method for transferring bulk material from a feed container into a sluice with a silo tube of a vibrator device includes moving the sluice with a sluice drive and moving the feed container filled with the bulk material a between a waiting position and an abutment position at the sluice while the sluice is moving.

Abstract: The invention relates to a small drilling apparatus for producing bores in the ground, comprising, a main carrier 4, a telescopic mast 7 with an adjustable length, a rotating device 6, by which the telescopic mast 7 is pivotable relative to the main carrier 4 around a vertical axis A1.

Abstract: The invention relates to a small drilling apparatus for producing bores in the ground, comprising, a main carrier 4, a telescopic mast 7 with an adjustable length, a rotating device 6, by which the telescopic mast 7 is pivotable relative to the main carrier 4 around a vertical axis A1.