A knuckle pin, coupling system, and method for producing a knuckle pin are provided, the knuckle pin having a cylindrical body with a longitudinal slot therein separating vertical edges of the cylindrical body, with one or more first retaining elements that span outward of the cylindrical body, and a second retainer that includes one or more of opposing apertures, and bendable legs. A method for producing the knuckle pin is provided, where a blank is stamped into a workpiece that corresponds to the pin to be produced, and the stamped workpiece is rolled to produce the pin with the slot.

A knuckle pin, coupling system, and method for producing a knuckle pin are provided, the knuckle pin having a cylindrical body with a longitudinal slot therein separating vertical edges of the cylindrical body, with one or more first retaining elements that span outward of the cylindrical body, and a second retainer that includes one or more of opposing apertures, and bendable legs. A method for producing the knuckle pin is provided, where a blank is stamped into a workpiece that corresponds to the pin to be produced, and the stamped workpiece is rolled to produce the pin with the slot.

A compact single wheeled knuckle carrier which may be easily stowed and take up minimal space within the engine while simultaneously being easily maneuverable and robust enough to assist a person in carrying a train knuckle over rough terrain and over distance. The compact single wheeled knuckle carrier has a support member that couples the knuckle to the carrier and can include a slide lock to secure the knuckle to the support member.

A compact single wheeled knuckle carrier which may be easily stowed and take up minimal space within the engine while simultaneously being easily maneuverable and robust enough to assist a person in carrying a train knuckle over rough terrain and over distance. The compact single wheeled knuckle carrier has a support member that couples the knuckle to the carrier and can include a slide lock to secure the knuckle to the support member.

A railroad coupler knuckler meets AAR contour requirements and it includes unique external weight reducing features that strategically reduce weight without compromising strength or fatigue life. The design of the railroad knuckle of the present invention allows for formation of the knuckle through forging or coreless casting techniques and thus allows for the use of a better grade of steel compared to AAR Grade E and such forged or cast knuckle will yield much higher fatigue life compared to cast knuckles.

A railroad coupler knuckler meets AAR contour requirements and it includes unique external weight reducing features that strategically reduce weight without compromising strength or fatigue life. The design of the railroad knuckle of the present invention allows for formation of the knuckle through forging or coreless casting techniques and thus allows for the use of a better grade of steel compared to AAR Grade E and such forged or cast knuckle will yield much higher fatigue life compared to cast knuckles.

The invention relates to the field of heat treatment of metals and may be used for hardening the railway transport automatic coupler parts. The hardening method includes induction heating of the automatic coupler and its subsequent cooling. The induction heating is performed within the automatic coupler part working surface area. The heated surface is cooled by water fed through openings in the coil body.

The invention relates to the field of heat treatment of metals and may be used for hardening the railway transport automatic coupler parts. The hardening method includes induction heating of the automatic coupler and its subsequent cooling. The induction heating is performed within the automatic coupler part working surface area. The heated surface is cooled by water fed through openings in the coil body.

A method of casting a core includes the steps of preparing a first half of a corebox, preparing a second half of a corebox such that the parting line of a core formed from the first and second coreboxes runs along the vertical axis of the core.

A method of casting a core includes the steps of preparing a first half of a corebox, preparing a second half of a corebox such that the parting line of a core formed from the first and second coreboxes runs along the vertical axis of the core.