Abstract: A motor vehicle lift includes two parallel runways, each provided with at least two elevating devices each having first and second uprights hinged to each other, to the floor (runway) and to the runway (floor) respectively; first and second arms hinged together, the second arm being further hinged to the second upright along a hinging axis equidistant from the axis on which the second upright is hinged to the runway (floor) and from the end of the second arm, which is slidable along a guide provided in the runway (floor), the first arm being also hinged to the first upright; and an actuator device securable selectively to two elements of the quadrilateral formed from the first/second uprights and the first/second arms, at least one of the parts of the quadrilateral being provided with elastic means to vary the dimension between the two hinged ends.

Abstract: A motor vehicle lift includes two parallel runways, each provided with at least two elevating devices each having first and second uprights hinged to each other, to the floor (runway) and to the runway (floor) respectively; first and second arms hinged together, the second arm being further hinged to the second upright along a hinging axis equidistant from the axis on which the second upright is hinged to the runway (floor) and from the end of the second arm, which is slidable along a guide provided in the runway (floor), the first arm being also hinged to the first upright; and an actuator device securable selectively to two elements of the quadrilateral formed from the first/second uprights and the first/second arms, at least one of the parts of the quadrilateral being provided with elastic means to vary the dimension between the two hinged ends.

Abstract: Parallelogram lift for motor vehicles, comprising a pair of base longitudinal members (2), a pair of runways (12) and at least two pairs of arms (14, 14?) hinged to the longitudinal members (2) and to the runways (12) and associated with members (30) for varying the inclination of said arms (14, 143 to the longitudinal members (2) and to the runways (12), wherein each longitudinal member (2) comprises a fixed base (4, 6) anchored to the floor, and a counter-base (8) slidable axially relative to the fixed base and carrying the arms (14, 143) hinged thereto, and also comprises for each longitudinal member (2) an auxiliary arm (22) hinged at its lower end to a support (26) fixed to the floor in alignment with the longitudinal member and pivoted at its upper end to the central point (20) of the adjacent main arm (14), the length of the auxiliary arm (22) between its pivotal axes (24, 20) being equal to one half the length of the main arms (14, 14?).

Abstract: A lift device of platform type for miscellaneous loads, in particular for motor vehicles, comprising a pair of vertical uprights (2) to rest on the floor, a load carrying platform (4) slidable along said uprights (2), a drive system for said platform comprising actuators associated with the two uprights (2), and a torsion bar (6) applied to said platform to ensure that this latter is also horizontal when an unbalanced load is present, characterised in that at least one sprocket wheel (14) is applied to said torsion bar (6) and cooperates with a stop pawl (16) elastically engaging the teeth of said sprocket wheel (14) and disengageable from it during the descent phase of said platform (4).

Abstract: A lift device of platform type for miscellaneous loads, in particular for motor vehicles, comprising a pair of vertical uprights (2) to rest on the floor, a load carrying platform (4) slidable along said uprights (2), a drive system for said platform comprising actuators associated with the two uprights (2), and a torsion bar (6) applied to said platform to ensure that this latter is also horizontal when an unbalanced load is present, characterised in that at least one sprocket wheel (14) is applied to said torsion bar (6) and cooperates with a stop pawl (16) elastically engaging the teeth of said sprocket wheel (14) and disengageable from it during the descent phase of said platform (4).

Abstract: Parallelogram lift for motor vehicles, comprising a pair of base longitudinal members (2), a pair of runways (12) and at least two pairs of arms (14, 14?) hinged to said longitudinal members (2) and to said runways (12) and associated with members (30) for varying the inclination of said arms (14, 14?) to said longitudinal members (2) and to said runways (12), wherein each longitudinal member (2) comprises a fixed base (4, 6) anchored to the floor, and a counter-base (8) slidable axially relative to said fixed base and carrying said arms (14, 14?) hinged thereto, and also comprises for each longitudinal member (2) an auxiliary arm (22) hinged at its lower end to a support (26) fixed to the floor in alignment with said longitudinal member and pivoted at its upper end to the central point (20) of the adjacent main arm (14), the length of said auxiliary arm (22) between its pivotal axes (24, 20) being equal to one half the length of said main arms (14, 14?).

Abstract: An apparatus for effecting measurements on the geometry of the suspensions of a motor vehicle, to be applied to a vehicle lift, characterised by comprising on at least one runway (4), in a position corresponding with at least one wheel (12, 4 0), a pair of rollers (20, 22; 50, 52) which substantially do not project from the runway surface when at rest, but can be raised to adhere to said wheel (12, 40) on opposite sides of the region of contact with said runway, said pair of rollers (20, 22; 50, 52) being associated with means (26, 36; 42, 68) for causing them to translate, when raised, along the corresponding runway (4).

Abstract: A vehicle parking installation is provided having a pair of vertical columns, multiple platforms provided with carriages movable independently of each other along the columns. The carriages are lockable along the columns at predetermined distances which are suitable for accommodating individual vehicles. The platforms may be driven along the columns by a central unit which controls the operation of the installation. A drive member which is applied to each column is controlled by the central unit so that it can releasably connect the drive member to a selected platform to thereby displace the selected platform along the column. Each column has a mechanical locking device spaced at predetermined distances apart, individually controlled by the central unit and movable between an interference position and a non-interference position.

Abstract: A vehicle parking installation is provided having a pair of vertical columns, multiple platforms provided with carriages movable independently of each other along the columns. The carriages are lockable along the columns at predetermined distances which are suitable for accommodating individual vehicles. The platforms may be driven along the columns by a central unit which controls the operation of the installation. A drive member which is applied to each column is controlled by the central unit so that it can releasably connect the drive member to a selected platform to thereby displace the selected platform along the column. Each column has a mechanical locking device spaced at predetermined distances apart, individually controlled by the central unit and movable between an interference position and a non-interference position.

Abstract: A device for determining the slack in articulated joints and measuring the steering angles of motor vehicles is provided. The device can be easily and quickly converted to measure the slack or measure the steering angles, and is housed in the traditional recess of the runway of the vehicle lift.

Abstract: A reliable motor vehicle parking installation having an economical construction is provided and includes an extremely flexible structure to maximize the available space. Its construction can extend above and/or below the ground. The installation includes a load-bearing structure having at least one tower with multiple cells arranged in superimposed horizontal rows. Each cell has at least one pair of longitudinal horizontal guide members disposed perpendicular to the horizontal rows of cells. A platform moves along a vertical structure, which is itself movable horizontally, parallel to the horizontal rows of cells. The platform has at least one pair of longitudinal members arranged in the same member as the longitudinal member of each cell. Multiple trays are provided each of which includes a pair of vehicle parking runways, and an actuator moves the trays between the platform and the cells of each tower.

Abstract: Device for supporting motor vehicle wheels when taking suspension geometry measurements, characterised by comprising: a structure (1,1',35) provided with ball supports (7) for its free resting on an underlying surface (15), at least a pair of rollers with substantially parallel axes, rotationally supported by said structure and supporting a wheel (16) of the vehicle (14), and means (21,21',33,33',41,49) to neutralize on command, the effect of said ball support (7) and to firmly bind said structure (1,1',35) to said underlying surface (15).

Abstract: A hydraulic jack particularly intended for use in automobile lifts includes a safety stop mechanism including a fixed toothed rod and a piston-supported pawl mechanism which includes one or more stop members. Each of the stop members can be retracted, to allow the jack to collapse, by applying hydraulic pressure to the chamber above the piston.

Abstract: A pantograph lifting ramp for motor vehicles includes a pair of wheel guides supported by at least two pairs of columns, which are pivoted at their lower ends to two base frames. The columns of at least one pair have their lower ends connected through a torsion bar consisting of connectable sections. The lifting ramp includes a safety valve to prevent uncontrolled descent in case of failure of the hydraulic fluid system, and another safety device to arrest lowering of the lifting ramp if a worker's foot is accidentally placed between the base frame and a column or wheel guide during lowering of the ramp.

Abstract: A motor vehicle lift comprising in combination:a pair of base longitudinal members (1) for its support on and/or securing to the floor,a pair of first uprights (2) hinged lowerly to said longitudinal members (1),a pair of second uprights (4) hinged lowerly to said longitudinal members (1) and upperly to said first uprights (2) at an intermediate point thereof,a pair of vehicle lifting runways (6) hinged to the upper end of said first uprights (2) and formed in several separate parts which are kept substantially aligned when the lift is lowered,a pair of actuators (17) acting so to vary the reciprocal contained angle of said pairs of first uprights (2) and second uprights (4), for raising the lift, anda pair of members (15,15') interposed between said first uprights (2) and the portion (8) of runways (6) hinged to said first uprights (2) to check their reciprocal contained angle during the raising of the lift,the hinging between a pair of said uprights (2,4) and said longitudinal members (1) being of such a ty