Abstract: A chain lock has two lock parts which can be displaced in the longitudinal direction of the lock in order to open and close the lock. Each lock part has a journal (6) which is arranged on one end and a pocket (7) which is arranged on the other end in order to receive a journal (6) of the other lock part. Each journal (6) is fitted with at least one retaining web (8) which can be displaced in a retaining groove (11) of the pocket (7) of the other lock part. The journal (6) and the pocket (7) have a cross-section which continuously widens or expands in the longitudinal direction of the lock.

Abstract: A chain lock has two lock parts (1) which can be displaced in the longitudinal direction of the lock in order to open and close the lock. Each lock part (1) has a journal (5) which is arranged on one end and a pocket (6) which is arranged on the other end. The journal (5) of one lock part (1) fits, respectively, into the pocket (6) of the other lock part (1). The journals (5) and the pockets (6) are both similar in height (H) to the inner width of the lock and each journal (5) has several retaining frames (7, 8), associated with several retaining grooves (13, 14) in the pocket (6) of the other lock part (1).

Abstract: The invention relates to a chain lock comprising two lock parts (1) which can be displaced in the longitudinal direction of the lock in order to open and close said lock. Each lock part (1) comprises a journal (5) which is arranged on one end thereof and a pocket (6) which is arranged on the other end thereof. The journal (5) of one lock part (1) fits respectively, into the pocket (6) of the other lock part (1). The journals (5) and the pockets (6) are both similar in height (H) to the inner width of the lock and each journal (5) comprises several retaining frames (7,8), whereby the several retaining grooves (13, 14) thereof are associated with the pocket (6) of the other lock part (1) in order to achieve economical power and voltage distribution in the journals (5) and pockets (6).

Abstract: The invention relates to a chain lock comprising two lock parts which can be displaced in the longitudinal direction of the lock in order to open and close said lock. Each lock part comprises a journal (6) which is arranged on one end thereof and a pocket (7) which is arranged on the other end thereof in order to receive a journal (6) of the respective other lock part. Each journal (6) is fitted with at least one retaining web (8) which can be displaced in a retaining groove (11) of the pocket (7) of the respective other lock part. The journal (6) and the pocket (7) have a cross-section which continuously widens or expands in the longitudinal direction of the lock in order to maintain the small amount of required displacement path in the opening and closing of the lock.

Abstract: According to the invention, the resistance of the links of a D-profile chain may be increased, whereby the transitions between the flanks (2, 3) and the outer planar bearing surfaces of the links comprise roundings of radius r, which is 0.2 to 0.4 times the value of the separation (A) between the flanks of the chain links.

Abstract: A chain, a chain wheel and a chain transmission for a lifting gear in accordance with the present invention increases the dynamic resistance of a round steel chain that is primarily intended for use in combination with a lifting gear. The chain members (5, 6) are locally deformed plastically in the area of their braces (9, 10) so as to form flat lateral zones (11).

Abstract: According to the invention, the resistance of the links of a D-profile chain may be increased, whereby the transitions between the flanks (2, 3) and the outer planar bearing surfaces of the links comprise roundings of radius r, which is 0.2 to 0.4 times the value of the separation (A) between the flanks of the chain links.

Abstract: The invention relates to a chain, a chain wheel and a chain transmission for lifting gear. The aim of the invention is to increase the dynamic resistance of a round steel chain that is mainly intended for use in combination with lifting gear. To this end, the chain members (5, 6) are locally deformed plastically in the area of their braces (9, 10) in such a manner that they have flat lateral zones (11).

Abstract: In the case of a connecting chain link for link chains having two connecting-link parts (1, 2) which can be displaced by limited amounts in the longitudinal direction of the connecting link, in order to open and close the connecting link, and which are each provided with a stub (6) at one end (4) and at the other end (5) with a pocket (7) to hold the stub (6), in the closed position the connecting-link parts (1, 2) are locked in place with the aid of a central locking element (10) which rests in shell-shaped supporting surfaces (9) of two projections (8) which protrude into the clear interior of the connecting link.

Abstract: In a chain lock with essentially U-shaped lock parts (1, 2), each lock part has an inner limb (4) and an outer limb (3) which are connected to each other by a yoke. The outer and inner limbs (3, 4) are connected to each other in a closed position of the lock by three pairs of holding teeth (5, 8; 6, 9; 7, 10). For increasing the strength of the lock, the holding teeth (6, 9) of the central pairs of holding teeth, and the holding teeth (5, 8) of the pairs of holding teeth arranged in the region of the ends of the inner limbs (4), have a greater height (H) than the holding teeth (7, 10) of the other pairs of holding teeth. All holding teeth (5-10) support each other only over a central supporting zone which is limited in its height.

Abstract: In a chain conveyor, the conveying elements (4) are connected via coupling elements (8, 9) to connecting chain links (1, 2) of at least one drive chain strand. The coupling elements (8, 9) are swung from different sides into the clear inner spaces (7) of the connecting chain links (1, 2). By the type of connection between the coupling elements (8, 9) and the connecting chain links (1, 2), a stable arrangement of the conveying elements (4) is obtained, in which arrangement special securing elements which prevent the coupling elements (8, 9) from being undesirably released from the connecting chain links (1, 2) can be dispensed with.

Abstract: In a chain wheel with pockets (3) for locating horizontal links (4) of a round steel chain, teeth (2) are used, adjoining the rounded tooth-root sections (6) of which are inclined surfaces (7) which serve to support horizontal links (4) of chains, the picth of which is larger than the pitch of the chain wheel. A conventional support of the horizontal links on flat bottoms (8) of the pockets (3) is deliberately omitted.

Abstract: The invention relates to an eyed hook having a shackle engaged in its eye. The eye has a flattened neck to allow the shackle to be engaged, while the shackle has a slot bridged over by a securing bolt, the width of the slot being greater than the width of the material of the hook constituting the neck, but less than the width of the remainder of the material of the hook constituting the eye. The neck is located where the eye merges into the hook, the neck having a transverse bore to take a locking device which also acts as a bearing for a pivoted safety catch of conventional type.

Abstract: The invention relates to an equalizing head for a chain sling comprising a connecting member for a hanger to suspend the head from a hoist hook or the like, and additional connecting members for the several falls of chain of the sling, whereby the connecting member for the hanger is a clevis type shackle of round section steel, having shanks inserted into at least one hole provided in the equalizing head for their reception and being detachably held therein by locking element.