A mobile carriage system includes a frame supported by a surface, a drive shaft that extends along the frame and drives a drive wheel to move the frame along the surface, and a guide track that extends along the surface and has an elevated track portion. The drive wheel supports the frame and rolls along the surface, and a guide wheel rides along the elevated track portion. The drive wheel is fixedly secured onto the drive shaft and is rotatable by the drive shaft. The guide wheel is also mounted onto the drive shaft but is freely rotatable on the drive shaft, with the drive wheel having a smaller diameter than the drive wheel.

A vehicle production assembly includes a discontinuous conveyor system to support a vehicle. The conveyor system includes a first side conveyor chain, a second side conveyor chain, and a plurality of middle conveyor chains longitudinally spaced between the first and second conveyor chains. The conveyor chains can be mechanically synchronized with a single motor.

A vehicle production assembly line includes a conveyor system to support a vehicle. The conveyor system includes a first side conveyor chain, a second side conveyor chain, and a middle conveyor chain positioned between the first side conveyor chain and the second side conveyor chain. The first side conveyor chain, the second side conveyor chain, and the middle conveyor chain are laterally aligned with each other and can be mechanically synchronized with a single motor.

A conveyor system for controlling two conveyor belts with a single motor including a belt link for removing material from between the run and the return portions of a conveyor belt moving along a first trajectory.

A vehicle production assembly line includes a conveyor system to support a vehicle. The conveyor system includes a first side conveyor chain, a second side conveyor chain, and a middle conveyor chain positioned between the first side conveyor chain and the second side conveyor chain. The first side conveyor chain, the second side conveyor chain, and the middle conveyor chain are laterally aligned with each other and can be mechanically synchronized with a single motor.

A vehicle production assembly includes a discontinuous conveyor system to support a vehicle. The conveyor system includes a first side conveyor chain, a second side conveyor chain, and a plurality of middle conveyor chains longitudinally spaced between the first and second conveyor chains. The conveyor chains can be mechanically synchronized with a single motor.

A mobile carriage system includes a frame supported by a surface, a drive shaft that extends along the frame and drives a drive wheel to move the frame along the surface, and a guide track that extends along the surface and has an elevated track portion. The drive wheel supports the frame and rolls along the surface, and a guide wheel rides along the elevated track portion. The drive wheel is fixedly secured onto the drive shaft and is rotatable by the drive shaft. The guide wheel is also mounted onto the drive shaft but is freely rotatable on the drive shaft, with the drive wheel having a smaller diameter than the drive wheel.

Conveyor pulley embodiments are provided. In some embodiments, a lower portion of a wing portion of the conveyor pulley is curved to complement an exterior surface of the body of the conveyor pulley. In some embodiments, an upper portion of a wing portion of the conveyor pulley is curved so as to complement an imaginary cylindrical surface along which the pulley supports a conveyor belt.