Koppers Company, Inc.

Michael M Calistrat

A flexible coupling in which the torque is transmitted by elastomeric elements held in compression. The coupling includes a sleeve assembly comprised of a plurality of independent arcuate elements and a retainer ring assembly which maintain the elastomeric elements in operable contact with the blades of the hub during rotation of the coupling.

Flexible coupling

An improved flexible diaphragm coupling including a floating shaft connector having flexible discs welded thereto, the flexible discs connected to axially spaced, coaxially aligned shaft mounted hubs, pilot rings surrounding the discs for aligning the assembly with the hubs and damper means fixed to the floating shaft and the pilot rings. The damper means which includes an elastomeric inner ring serves to dampen axial oscillations of the coupling assembly and seals the disc element from adverse contaminants.

Diaphragm coupling

Disclosed is an improved segmented driving shaft in which the torque is transmitted from roll segment to roll segment through flexible gear-type couplings. The shaft includes a plurality of alignment tubes which reduces the angle of misalignment of the gear-type couplings.

Segmented driving shaft

A gear type flexible shaft coupling made up of identical halves each including an externally toothed hub surrounded by an internally toothed sleeve in meshing engagement therewith, sleeve connecting flanges with fasteners threaded alternately from opposite sides of the sleeves, an aligning ring extending between the facing sleeves to radially align the sleeves, an axially outer flexible metallic seal ring assembly between the hub and sleeve, a portion of such sealing ring assembly being abuttable against a shoulder on the hub to maintain a substantially uniform lubricant reservoir within the coupling half, an axially inner non-metalic removable sealing cup closing the inner end of the sleeve forming a closed lubricant chamber in each half, such cup including a detent to maintain the cup in position when the coupling halves are disassembled, and elastomeric, axially-spaced sealing rings in the tapered bores of the hubs to facilitate removal of the hubs from the shaft.

Symetrical sealed gear coupling

A continuously lubricated gear type coupling for connecting a pair of substantially co-axially aligned rotatable shafts comprising: a hub having outwardly extending gear teeth and secured to an end of one of the shafts by a key for rotation therewith; a sleeve surrounding the hub and having inwardly extending gear teeth in meshing engagement with the outwardly extending gear teeth and connected to the other shaft for rotation therewith; a plurality of inlet ports for continuously supplying a lubricant to the inwardly and outwardly meshing gear teeth; a plurality of outlet ports for removal of the lubricant from the coupling after the lubricant has lubricated the inwardly and outwardly extending gear teeth; and an annular impeller surrounding the one shaft and secured to the hub to direct the flow of air or corrosive gases away from the key and keyways of the coupling upon rotation thereof thereby preventing the air or corrosive gases from entering the coupling through the keyway and causing corrosion thereof. The coupling preferably includes a sealing mechanism connected to the end of the one shaft and in sealing engagement with the hub to further insure that air or corrosive gases do not enter the interior of the coupling through the space occupied by the key.

Continuously lubricated coupling

A permanently sealed gear coupling for connecting a pair of substantially coaxially aligned rotatable shafts comprising a hub connected to each of the rotatable shafts, each of the hubs including outwardly extending spur gear teeth projecting from a portion of the outer surface thereof; a sleeve surrounding and radially spaced from each of the hubs, the sleeve having inwardly extending spur gear teeth in meshing engagement with the outwardly extending gear teeth on each hub; and permanently mounted sealing rings for retaining lubricant in spaces between the hubs and the sleeve for lubricating the meshing gear teeth.

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Sykesville, MD, United States of America

Michael M Calistrat