A board turner assembly may include an endless chain, first and second groups of turning arms pivotably coupled with the endless chain and disposed along opposite sides thereof, an upper guide with an inclined surface, an actuator selectively operable to move the upper guide between a resting position and an extended position, and one or more endless belts. The turning arms may be spaced apart at regular intervals that are offset on one side of the chain relative to the other. The groups of turning arms may be operated in an alternating fashion to turn selected boards to a desired orientation (e.g., wane side up). Corresponding methods and systems are also described.

The forged link and round bottom drag conveyor paddle assembly and method of making same provide for use of a hollow sleeve for engaging link ends together and engaging round bottom drag conveyor paddles to the link through engagement of a suitable connector through the round bottom drag conveyor paddles and the sleeve to make the round bottom drag conveyor paddles easily replaceable. As an alternative embodiment a solid sleeve incorporating threaded ends is also proposed for use in engaging round bottom drag conveyor paddles to a forged link.

The forged link and round bottom drag conveyor paddle assembly and method of making same provide for use of a hollow sleeve for engaging link ends together and engaging round bottom drag conveyor paddles to the link through engagement of a suitable connector through the round bottom drag conveyor paddles and the sleeve to make the round bottom drag conveyor paddles easily replaceable. As an alternative embodiment a solid sleeve incorporating threaded ends is also proposed for use in engaging round bottom drag conveyor paddles to a forged link.

In some aspects, a conveyor chain includes a first link, a second link, and a coupler link coupled between the first link and the second link. The first link includes a first portion and a second portion, the second portion oriented parallel to and laterally spaced apart from the first portion. The first portion includes a first sprocket-engaging pin protruding laterally, and the second portion includes a second sprocket-engaging pin protruding laterally. The second link includes a first portion and a second portion. The first portion includes a first sprocket-engaging portion protruding laterally, and the second portion includes a second sprocket-engaging portion protruding laterally. A flight bar is positioned adjacent an end of the first sprocket-engaging portion of the first link.

A conveyor chain includes a first link, a second link, and a coupler link. The first link includes a first sprocket-engaging portion and a second sprocket-engaging portion, each protruding laterally away from one another. The second link includes a first sprocket-engaging portion and a second sprocket-engaging portion, each protruding laterally away from one another. The coupler link couples the first link to the second link, and the coupler link is positioned laterally between the first sprocket-engaging portion and the second sprocket-engaging portion of each link. The coupler link includes a first joint pivotably coupled to the first link and a second joint pivotably coupled to the second link. The first joint permits pivoting movement of the first link about a plurality of axes, and the second joint permits pivoting movement of the second link about a plurality of axes.

In some aspects, a conveyor chain includes a first link, a second link, and a coupler link coupled between the first link and the second link. The first link includes a first portion and a second portion, the second portion oriented parallel to and laterally spaced apart from the first portion. The first portion includes a first sprocket-engaging pin protruding laterally, and the second portion includes a second sprocket-engaging pin protruding laterally. The second link includes a first portion and a second portion. The first portion includes a first sprocket-engaging portion protruding laterally, and the second portion includes a second sprocket-engaging portion protruding laterally. A flight bar is positioned adjacent an end of the first sprocket-engaging portion of the first link.

A linkage for moving material from a first end of a conveyor toward a second end of the conveyor includes a first link and a second link. The first link includes a first side edge and a first indicator. The second link includes a second side edge and a second indicator. The second link is coupled to the first link such that the first side edge of the first link overlaps with the second side edge of the second link. Elongation of the first link in the direction of movement causes the first indicator to move relative to the second indicator, and a position of the first indicator relative to the second indicator provides an indication of a wear condition of the first link. In some aspects, a first surface and/or a second surface of one of the links includes a wear indicator representing a surface wear condition.

A multilevel indoor mobile gutter system for growing vegetation including at least a first level and a second level is provided. Each level may include a first level conveyor and a second level conveyor respectively. A transfer conveyor is operable to convey from the first level to the second level. A plurality of lights are positioned to emit light towards the first level and the second level. At least one gutter is operable to support a plant within. The first level conveyor transports the at least one gutter from the front end to the rear end of the first level, the transfer conveyor transfers the at least one gutter from rear end of the first level to the front end of the second level, and the second level conveyor transports the at least one gutter from the front end to the rear end of the second level.

A guide that fits over a paddle link in a paddle-type elevator in a harvester combine grain elevator. The plastic guide provides a wide, low-friction surface that rides on the intermediate wall of a grain elevator, thereby keeping the paddle links from rubbing against and causing wear to the intermediate wall. The guide also serves to inhibit the paddle from tipping back, thereby preventing the concentration of force by one corner of a paddle link against the intermediate wall. The guide al so helps maintain the correct orientation of flexible paddle against the inside of the elevator housing, thereby inhibiting the paddle from tipping back and leaking grain back into the upward path of the conveyor. The plastic guide also reduces noise caused by the metal parts of a paddle-type elevator from coming into contact.

A conveyor chain includes first link, a second link, a connecting link, a first flight, and a second flight. The first link includes a first side portion and a second side portion. The first side portion has apertures and a first drive pin disposed between the apertures. The first drive pin is configured to be driven by a first sprocket. The second side portion has apertures and a second drive pin disposed between the apertures and extending in a direction opposite the first drive pin. The second drive pin is configured to be driven by a second sprocket. The second link includes a first side portion and a second side portion. The first flight is cast integrally with an end of the first drive pin of the first link, and the second flight is cast integrally with an end of the second drive pin of the first link.