Abstract: A container is disclosed which makes the coupling a coupling device of lifting gear, such as a crane, with the container without requiring additional alignment operations as performed by special instrumentalities or by manual labor. The coupling device includes a first coupling member which consists of a bushing having an upper flange-like border, which is arranged centrally on the top side of the container. This bushing serves simultaneously as a guide member for a second coupling member which is in the form of a pull bar. The second coupling member, as well, is provided with an upper flange-like border. When handling the container one may use the coupling device with at least two hooks, which are fitted, respectively, under the flange-like borders of the coupling members in a circumferential distribution.

Abstract: A two-sided grab bucket comprises a U-shaped scoop carrier and two scoops, which are provided with crosspieces, which are welded to the inside surfaces of the upper edge portions of the side walls of the scoops and are pivoted to the legs of the scoop carrier on two spaced apart parallel axes, actuating levers, which are welded to the crosspieces, and a transversely extending hydraulic piston-cylinder unit, which is pivoted to and connects the free ends of said levers. The hydraulic piston-cylinder unit comprises two cylinders, each of which is pivoted to the actuating lever or levers associated with a crosspiece, and the pistons associated with said cylinders are interconnected by a common piston rod.

Abstract: A two-sided grab bucket comprises a U-shaped scoop carrier and two scoops, which are provided with crosspieces, which are welded to the inside surfaces of the upper edge portions of the side walls of the scoops and are provided to the legs of the scoop carrier and two spaced apart parallel axes, actuating levers, which are welded to the crosspieces, and a transversely extending hydraulic piston-cylinder unit, which is pivoted to and connects the free ends of said levers. The crosspieces are constituted by shafts, which are provided with annular bearing surfaces on opposite sides of the longitudinal center line of the two-sided grab bucket, said annular bearing surfaces are rotatably mounted in split bearings, the legs of the scoop carrier are provided on both sides with the inner bearing shells of the split bearings, and the outer bearing shells are screw-connected to the inner bearing shells.

Abstract: In a locking device for attaching implements to convertible machines, preferably for fixing attachments to lifting slides of forklift trucks which comprise plate- or rail-like supports, which are adapted to carry the implements or attachments, which have retaining claws for interengaging with the supports, a locking member is rotatably mounted and axially immovably mounted on a disc-shaped axle, which is adapted to be connected to the implement or attachment, and said locking member is pivotally movable between open and locking positions and in its locking position is adapted to be positively coupled to the axle by a retaining element.

Abstract: A clamshell comprises a U-shaped halfscoop carrier, two halfscoops pivoted to the legs of the half-scoop carrier on axes which are parallel to each other and to the central crosspiece connecting the legs, and actuating levers, which are secured to the half-scoops and to which the piston rod and the cylinder, respectively, of a transversely extending hydraulic actuator are pivoted at the free ends of the levers. The tubes connecting the top edges of the side walls of the half scoops are formed adjacent to their ends with radial slots extending over part of their periphery. The end portions of the T-shaped legs are provided with the bearing bores and extend through the radial slots. The side walls are formed with bores, which are aligned with the bores of the tubes and with the bearing bores and receive the pivot pins for the halfscoops.