Abstract: Linear gearing primarily intended for use in connection with so-called transfer tolleys in automatic parking buildings. The transfer trolley includes a first carriage (101) which can be moved in at least a horizontal direction, and a second carriage (102) which is connected to a first carriage for movement from a first end position, in which the second carriage is located within the horizontal extensions of the first carriage, to a second position in which the second carriage has been moved in its longitudinal direction and the longitudinal direction of the first carriage and is located completely outside, or substantially completely outside the horizontal extensions of the first carriage.

Abstract: A vehicle elevator and conveyor arrangement in a parking building of the kind in which the vehicle is intended to be conveyed in the building without the assistance of a driver. The conveyor arrangement includes a so-called transfer carriage which is intended to raise and lower all wheel of the vehicle and which can be moved in a horizontal plane in the building and also in a vertical direction by means of the elevator arrangement, which elevator arrangement includes an elevator platform for supporting a transfer carriage. Each of the stories or floors of the parking building on which a transfer carriage (31) is intended to be moved is provided with two parallel rails (50, 51) which form a horizontal transfer-carriage conveyor path or track (71). One or more elevator shafts (61, 62) are positioned along the longitudinal extension of the rails.