Rope or chain hauling pulley
AssigneeCampbell Hausfeld/Scott Fetzer Company
InventorStephen K. Jones
Life of this patent
Estimating the term…
Abstract
A pulley is described for hauling strands of rope or chain and for engaging a splice coupling a strand of rope to a strand of chain. A plurality of pockets are arranged about the periphery of the pulley for positively engaging every other chain link. A plurality of pairs of rope-engaging surfaces are located between adjacent pockets and within the pockets. Rope and chain occupy substantially the same diameter of the pulley resulting in substantially the same speed and torque characteristics whether rope or chain is being hauled.
Claims13
A rope-chain pulley comprising:
- a hub;
- a first set of opposed pairs of radially extending teeth circularly spaced around said hub, each pair of opposed teeth of said first set having confronting rope-engaging surfaces which slope away from each other in a radially outward direction, said first set of teeth defining chain link receiving pockets and having flanks transverse to said confronting surfaces adapted to drivingly engage the links of a chain wrapped around said pulley;
- base surface portions in said pockets facing radially outward for engaging the links of a selected size chain received in said pockets;
- and,
- a second set of opposed pairs of radially extending teeth circularly spaced around said hub, said second set of teeth being radially shorter than said first set of teeth and having confronting rope-engaging surfaces which taper away from each other in a radially outward direction on the same angle as the rope-engaging surface of said first set of teeth.
A pulley for hauling lengths of rope or chain comprising:
- a plurality of pockets arranged about the periphery of said pulley for engaging and driving said chain, each of said pockets having ends defined by angularly spaced chain-driving surfaces extending generally radially from said pulley and each chain driving surface being contained in a plane generally parallel to the axis of rotation of said pulley, such that every other link of said chain fits within one of said pockets;
- and,
- a plurality of rope-driving surfaces for engaging and driving rope wherein at least one pair of oppositely facing rope-driving surfaces lies within each pocket, and wherein another pair of oppositely facing rope-driving surfaces lies between adjacent pockets, said pockets and said oppositely facing rope-driving surfaces being configured to haul selected sizes of rope and chain on substantially the same radial position of said pulley.
A pulley for hauling lengths of rope or chain comprising:
- a first set of angularly spaced radially extending teeth having first opposed rope-engaging surfaces for driving said rope and second adjacent chain-engaging surfaces for driving said chain, each chain-engaging surface being formed integrally with and substantially perpendicular to said rope-engaging surface;
- and,
- a second set of angularly spaced radially extending teeth having opposed rope-engaging surfaces for driving said rope.
Dependencies are inferred from the claim text.