Abstract: The invention relates to an industrial vehicle comprising a frame supported by ground wheels and/or caterpillars or the like. A driver seat is supported by said frame and provided with at least one armrest (elbow rest) and one or more control-members disposed near the elbow rest for controlling the movements of the vehicle and/or members connected with the vehicle. The elbow rest and the control-member(s) are disposed near the top end of a supporting column which is pivotable about a pivotal shaft located near the bottom side of the column and extending transversely of the longitudinal axis of the driver seat and fixable in at least two positions.

Abstract: A ram for driving elongated objects into the ground including a piston jacket, an anvil disposed on the object to be driven, a mechanism located within the jacket for directly impacting with the anvil and for reciprocating at least substantially in a direction of driving the elongated object during driving operation wherein the mechanism for impacting further includes a plurality of cup springs arranged in series in the direction of driving the object and which are in contact with one another and wherein a lowermost cup spring directly impacts the anvil during driving operation.