A drive sprocket comprising a plurality of teeth for meshing with a drive member to transmit rotary motion, the drive member including a plurality of engagement pockets engaging the teeth of the drive sprocket, wherein each tooth has a tooth profile defined by a first side comprising a first engagement surface and an opposite second side comprising a second engagement surface, which engagement surfaces are configured such that when driven, a tooth meshes to the engagement pocket at a first contact location on the first engagement surface and also at a second contact location on the second engagement surface, wherein the first contact location is radially offset from the second contact location.

A plate link chain for a continuously variable transmission of a motor vehicle is provided. The plate link chain includes a plurality of link plates arranged parallel to a running direction of the plate link chain and each link plate includes an aperture formed therein. A plurality of pressure pieces are oriented perpendicular to the running direction and arranged in pairs to be received in the apertures of the link plates to form two joints in each link plate. The two joints in each link plate are supported by arcuate outer sections of the pressure pieces.

A plate link chain for a continuously variable transmission of a motor vehicle is provided. The plate link chain includes a plurality of link plates arranged parallel to a running direction of the plate link chain and each link plate includes an aperture formed therein. A plurality of pressure pieces are oriented perpendicular to the running direction and arranged in pairs to be received in the apertures of the link plates to form two joints in each link plate. The two joints in each link plate are supported by arcuate outer sections of the pressure pieces.

A drive system (35) for a people conveyor (1) comprises a conveyance chain (15) including a plurality of chain links (36) connected to each other; a plurality of legs (38) configured for connecting the conveyance chain (15) with the conveyance elements (13); and a plurality of levers (40). Each leg (38) is connected to at least two different chain links (36) by at least two of the levers (40). Each of the levers (40) is pivotably connected to one of the chain links (36) and pivotably connected to one of the legs (38).

A drive system (35) for a people conveyor (1) comprises a conveyance chain (15) including a plurality of chain links (36) connected to each other; a plurality of legs (38) configured for connecting the conveyance chain (15) with the conveyance elements (13); and a plurality of levers (40). Each leg (38) is connected to at least two different chain links (36) by at least two of the levers (40). Each of the levers (40) is pivotably connected to one of the chain links (36) and pivotably connected to one of the legs (38).

A link chain comprises an inner link plate, an outer link plate, a bushing and a pin that form a chain link, and a labyrinth seal between the outer link plate and the inner link plate. The labyrinth seal comprises at least one lug having lug length and at least one groove having a groove depth, the lug length and groove depth being between 10% to 50% of an average respective link plate thickness, wherein in response to an overload of the link chain, the flow of force within the link chain is partially diverted across surfaces of the labyrinth seal formed by the at least one lug and the at least one groove.

A web material advancement arrangement is provided with an entry drive system. The web material advancement arrangement can receive a web material from a storage roll and advance the web material through a machine, such as a packaging machine. The entry drive system may be arranged at the entry end of the web material advancement arrangement to push the web material in a downstream direction from the entry end toward the exit end of the web material advancement arrangement The entry drive system may include a motor that simultaneously rotates a pair of drive sprockets which may push clip assemblies that carry outer edges of a web material so that rotation of the drive sprockets pushes the web material in a downstream direction.

Transmission linkage (2) for a continuously variable transmission mechanism (1) comprising at least one wheel (3, 4, 5) comprising two rotating flanges (31, 32, 41, 42, 51, 52), said linkage comprising: a first set of first links (210, 210, 410, 410, 510, 510, 700, 800, 900) having bearing surfaces (2106, 2107, 2108, 2109) able to come into contact between two flanges; a second set of second links (212, 412, 512) hinged to one another to form a closed-loop chain, the number of second links being equal to the number of first links; according to the invention, each link of one of the sets comprises a meshing pin (2120, 2120, 2120, 4103, 505, 600, 632, 642) and each link of the other set comprises at least one closed reception housing (2110, 2110 415, 515, 615, 621, 631, 641, 651) comprising meshing walls (2111, 624) engaging with said meshing pin via a meshing connection, said meshing connection allowing each first link to move with respect to the second link with which it collaborates, at least in a longitudinal direction (L).

Transmission linkage (2) for a continuously variable transmission mechanism (1) comprising at least one wheel (3, 4, 5) comprising two rotating flanges (31, 32, 41, 42, 51, 52), said linkage comprising: a first set of first links (210, 210, 410, 410, 510, 510, 700, 800, 900) having bearing surfaces (2106, 2107, 2108, 2109) able to come into contact between two flanges; a second set of second links (212, 412, 512) hinged to one another to form a closed-loop chain, the number of second links being equal to the number of first links; according to the invention, each link of one of the sets comprises a meshing pin (2120, 2120, 2120, 4103, 505, 600, 632, 642) and each link of the other set comprises at least one closed reception housing (2110, 2110 415, 515, 615, 621, 631, 641, 651) comprising meshing walls (2111, 624) engaging with said meshing pin via a meshing connection, said meshing connection allowing each first link to move with respect to the second link with which it collaborates, at least in a longitudinal direction (L).

An aircraft actuation system is disclosed that includes a pair of cylinders, a piston movably disposed in each cylinder, and a roller train that extends between the pistons in the two cylinders. A portion of the roller train is disposed beyond the cylinders to engage a pinion. Movement of the pistons in the two cylinders in opposite directions produces a corresponding movement of the roller train to in turn rotate the pinion. The roller train may be maintained in compression between its two ends by fluid pressure exerted on a common face of each of the pistons in the two cylinders. The cylinders may be disposed in non-colinear relation, including in parallel relation to one another. A guide may be used to maintain rollers of the roller train in a proper orientation for entry into a space between an outer race and the pinion.