Abstract: A plastic chain includes chain elements that are connected to one another by way of connecting shafts, rods or similar devices. The chain elements include a recess in which is received a connecting element. The connecting element can have a guide element extending therefrom for guiding the chain, and a locking element extending therefrom for restraining axial movement of the connecting shafts.

Abstract: A linear conveying unit comprises a rail and a saddle movable therealong. The rail includes two pairs of tracks, with the tracks of each pair being convergent. The saddle carries front and rear groups of wheels for engaging the tracks. Each wheel group includes two pairs of wheels, each pair of wheels having convergent axes of rotation. To adjust the saddle in order to eliminate any gaps between the wheels and tracks, only one wheel of each wheel group is made to be radially adjustable. That adjustment is effected by an eccentric sleeve surrounding the wheel axle. The saddle is moved by a drive belt, the ends of which are connected to the saddle by quick-release couplings. The saddle includes a recess which is covered by a metallic tape that is magnetically attracted to a pair of magnetic rims.

Abstract: The invention refers to a conveyor chain forming part of a chain conveyor and incorporates a number of cardanic interconnected links, each of which incorporates an interconnecting lower part (2, 3) and a load carrying upper part (1). The invention is characterized therein that the upper part (1) is equipped with connecting means (4, 5, 6, 8) for detachable fitting of further load carrying members (9), such as carriers, supports for rollers and protecting plates.

Abstract: In a conveyor comprising a conveyor chain and a beam supporting the chain, a beam section is composed by four substantially equal beam parts having an L-profile, and spacing an/or joint elements on which the beam parts are mounted, preferably with screw joints. The assembled beam has a rectangular section with openings in two opposing sides, the openings being spaces between two beam parts, at least one space forming a groove for a conveyor chain.

Abstract: The invention relates to a device for retaining two parallel tracks, such as conveyor tracks, and for adjusting the distance therebetween. The device comprises a supporting beam which extends transversely relative to the parallel tracks. Two mounting units for the tracks are mutually displaceably arranged. The position of the mounting units is settled by means of a common shaft, which is axially fixed and provided with right-handed or left-handed threads, said threads being intended to cooperate with corresponding threads in the mounting units.

Abstract: The invention relates to a conveyor chain having a number of links connected by cardan joints. Each link has a main portion (2) and a fork portion (3, 4) the fork surrounding the main portion of an adjacent link. A rotatable element (6) is arranged in a bore (5) in the main portion and a pin (7) extends into each fork leg from the rotatable element. In order to improve strength and provide largest possible contact surfaces in the members possible against the pin, the pin is fixed in the element (6) and slidable in bores (9) in parts (10, 11) extending from the respective fork legs.

Abstract: The invention refers to a holder for railings, lists and the like and it is characterized thereby that it incorporates a body (7) for mounting of the holder to a frame (2) and a holder portion extending from the body (7). This holder portion has in cross-section a U-shaped profile and has on the inner side of one of the shanks (9), a boss (5) intended to grip into the railing or the list (3). On the inner side of the other shank (9) is provided a recess, which is intended to cooperate with a locking pin (6) for arresting the railing or the list (3) to the holder.

Abstract: The invention refers to a conveyor incorporating a conveyor belt (1) which runs in a track on a girder (2). The girder (2) is at one or both sides provided with two longitudinal, open ducts (4, 5) which are situated one inside the other and which both can be reached from the outside of the girder (2). Hereby the girder sections can easily be interconnected by means of mounting moldings (8) in one of the ducts (4) at the same time as railings (7) or the like can be mounted in the other duct (5).

Abstract: A rotary drill bit having a drill bit body and at least one trunnion projecting from the drill bit body and a rotary cutter supported on at least one radial roller bearing on the trunnion. The rolling elements of the bearing are guided on at least one axial end facing the drill bit body in an outer bearing race groove incorporated in the bore of the rotary cutter. The inner bearing race groove is formed on the trunnion for the rolling elements of the radial roller bearing. At least one filling opening is provided which extends through the drill bit body and trunnion and is essentially axially oriented having one terminal end adjacent the inner bearing race groove and at least one pair of filler piece for sealing the opening. One of the filler pieces is made of an elastically compressible material.