A chain link for a roller chain or a sleeve-type chain that has a plurality of link plates with openings for receiving chain sleeves that can be brought into engagement with a sprocket wheel to transmit force. The chain sleeve has a central region that is engaged with the sprocket wheel and that has a larger outer diameter than its end regions that are held in the link plate openings. A method is disclosed for producing a chain sleeve for a chain link of a chain, which is produced by deep drawin...

This invention provides a chain tensioner that is compact, excellent in operation, easy to maintain and handle and low in manufacturing cost. This chain tensioner has a tubular housing 1 having a bottom, a plunger 3 installed in the inner periphery 1a of the housing so as to smoothly slide inside the housing, a return spring 5 providing the plunger 3 with a force pushing outward, a plurality of latching grooves 33a-33d formed on the outer periphery of the plunger 3, a resister ring 7 capable of ...

A transmission chain for a transmission having a drive sprocket and a driven sprocket with chain guides between the sprockets, at least one of the guides having a curved surface on which one of the runs of the chain slides in its travel between the sprockets. The chain has inner and outer link plates which respectively mount bushings and connecting pins which pass through the bushings with a clearance. The link plates have sliding surfaces which slide on the guide. The transmission chain has a c...

A chain block comprising a load sheave winding up a load chain, a hand wheel arranged on one side of the load sheave and rotatable in one of a normal direction and a reverse direction in response to the manual operation of a hand chain, a pinion shaft inserted through the load sheave along the center axis of the load sheave in a manner allowing the load sheave to be freely rotatable thereabout, one end of the pinion shaft screwed into the center of the hand wheel and the other end of the pinion ...

An improved chain, compatible with food grade lubricants, is capable of use in poultry and other meat processing facilities. The chain comprises pairs of side links alternating with center links, and held together with pins. A pair of lubricating wells is located on each side link, proximate the insertion point of the pins. The lubricating well provides lubricating access to the pins, and is capable of retaining lubricant such that lubricant is continuously provided to the pins and their pivot p...

This invention provides a chain tensioner that is compact, excellent in operation, easy to maintain and handle and low in manufacturing cost. This chain tensioner has a tubular housing 1 having a bottom, a plunger 3 installed in the inner periphery 1a of the housing so as to smoothly slide inside the housing, a return spring 5 providing the plunger 3 with a force pushing outward, a plurality of latching grooves 33a 33d formed on the outer periphery of the plunger 3, a resister ring 7 capable of ...

A method of controlling a train for a crew change and includes collecting information on the train including weight and length of the train, special weight distribution, number and location of cars with cut-out or inoperative brakes, status of dynamic brakes on all locomotives, if brake test is required, and prior train brake problems. The information is stored as a report and displayed at a crew change. The train is disabled until the crew has accepted the report.

A chain winch comprising a slack adjustor arranged for attachment to a chain for securing loads. The chain winch has a winding shaft and cooperating slack adjustor mounted on a frame for continuous rotation of the winding shaft by the slack adjustor, and the winding shaft incorporates a chain securing element.

In a roller chain, the outside diameters D of the rollers and the outside diameters d of the pins extending through bushings on which the rollers are disposed satisfy the relationships 0.72P.ltoreq.D.ltoreq.0.79P and 0.40P.ltoreq.d.ltoreq.0.44P where P is the pitch of the roller chain. The height H of the inner plates of the chain satisfies the relationship 0.96P.ltoreq.H. The elongation ratio of the chain is significantly reduced, and improvements in breaking strength of the pin and in the rota...

In a sprocket for a roller chain, the tooth form is such that the distance between the tooth center line and a part of the front tooth surface, at a location on the tooth head side of the pitch line, is greater than the distance between the tooth center line and the front surface of the tooth along the pitch line. The diameter of the tooth gap bottom circle is smaller than the diameter of a tooth gap bottom circle in a sprocket having an ISO tooth form for the same chain.