A chin chain for bits/bridles for use on a horse (for example, curb bit), includes a first chain element turning out to the left and a second chain element turning out to the right, the chain elements connected by a connecting element. In one example, the connecting element is formed from one piece and engages at least two links of the first chain element turning out to the left and at least two links of the second chain element turning out to the right.

A chain such as these used in a fork lift truck carriage lifting mechanism has a plurality of interleaved link assemblies each having a pair of outer link plates and a plurality of intermediate link plates. The outer link plate has a strength less than that of any intermediate link plate when measured in an unassembled state. The reduced strength may be achieved by a reduction in thickness or head area of the link plate. The outer link plates may have a stiffness of 60% to 90% of the average sti...

A chain for use in transmission and transportation with low friction, less wear, and low noises. The chain has central portions directly in engagement with a sprocket tooth face. Each of a number of pins is supported by rolling bearings attached individually to one of inside link plates and outside link plates, and plain bearings attached to the other link plates. With this arrangement, the sprocket tooth face and pin tooth face are brought into rolling contact with one another, and the link pla...

A conventional chain capable of reserving lubricating oil is complex in shape and expensive since each chain plate is formed with countersunk recesses and through-openings. Since the recesses are formed in an overlap region, the chain tends to rattle, producing noise. In the present invention according to which lubricating oil is fed toward a connecting pin, the lubricating oil is transferred to the connecting pin to effect intended lubrication. Part of the lubricating oil thus fed adheres to th...

A chain consists of at least a pair of chain links, a pair of side plates mounted between the chain links, a chain roller composed of at least two rolling elements mounted between the side plates, and a rivet extending through the chain links, the side plates and the rolling elements, wherein the rivet is tightly fitted with the chain links and loosely fitted with the side plates and the rolling elements so that the side plates and the rolling elements can have a pivotable movement relative to t...

Each chain link is punched out of a plastic sheet. The link has a closed form with a central opening and is divided on a line at one end of the opening. The link ends at the dividing line have interengaging shapes preventing separation as long as the link ends remain in the same plane. The plastic material can be flexed to spread the link laterally of the faces in joining one link to another. A slot in each link at the opposite end from its dividing line receives an adjacent link to hold the int...

A chain for use primarily in conveyor systems includes a plurality of male and female links pivotally coupled together. The female link includes a generally I-shaped body segment and a pair of bifurcated arms at each end. The arms are asymmetrically formed so that one arm defines a stop for preventing turning of the pivot pin and the other arm defines an enlarged boss. The provision of the flanges along the body segment and the boss at the ends function to increase the bearing surface at points ...

A chain is a combination of a plurality of links, each link comprising a pair of outer and inner chain plates and rollers, each chain plate being dumbbell shaped and providing an inclined surface along an upper and lower edge of an inner surface thereof, from one lateral end to another. The inclined surface has a blade portion with a greater slope in a central straight portion of the chain plate, the inner chain plate further providing an inward projection on an innermost central portion thereof...

A chain is a combination of plural links. Each link comprises a first inner chain plate, a second inner chain plate, a first outer chain plate, and a second outer chain plate linked by rollers and pins. Each chain plate includes a straight waist portion disposed between two semi-circular end portions, an inner face formed with an incline extending along an edge thereof, and a blade portion merging with the incline at the straight waist portion. The first outer chain plate includes a transverse d...

A chain is a combination of a plurality of links, each link comprising a pair of outer and inner chain plates and rollers, each chain plate being dumb-bell-shaped and providing an inclined surface along an upper and lower edge of an inner surface thereof from one lateral end to another, the inclined surface having a blade portion with greater slope in a central straight portion of the chain plate.