Abstract: A material placer includes conveyors on a frame for receiving material from a side dump trailer and conveying the material to a placing location. The conveyors can include a receiving conveyor for receiving material from the side dump trailer through an opening in a side of the placer, a funneling auger for funneling the material so it flows along a narrow flow path, a transfer conveyor for lifting the material after it is dumped from the side dump trailer, and/or a placing conveyor for placing the material at the placing location. The placing conveyor can be movable between a stowed position and a conveying position. A drive system for the conveyor may be located within a conveyor pulley to reduce the envelope of the material placer.

Abstract: A material placer includes conveyors on a frame for receiving material from a side dump trailer and conveying the material to a placing location. The conveyors can include a receiving conveyor for receiving material from the side dump trailer through an opening in a side of the placer, a funneling auger for funneling the material so it flows along a narrow flow path, a transfer conveyor for lifting the material after it is dumped from the side dump trailer, and/or a placing conveyor for placing the material at the placing location. The placing conveyor can be movable between a stowed position and a conveying position. A drive system for the conveyor may be located within a conveyor pulley to reduce the envelope of the material placer.

Abstract: A system for selectively covering a container with a tarp. The system includes a roller and a tarp connected to the roller. A motor is connected to an output member, and the output member is releasably engaged with the roller. Actuation of the motor when the output member and the roller are engaged causes movement of the roller relative to the tarp. A crank is releasably connected with the roller, wherein one of the crank and the roller is connected to a coupler and the other of the crank and the roller is connected to a joint. When the output member and the roller are disengaged and the crank is connected with the roller, rotation of the crank causes movement of the roller relative to the tarp.

Abstract: A system for selectively covering a container with a tarp. The system includes a roller and a tarp connected to the roller. A motor is connected to an output member, and the output member is releasably engaged with the roller. Actuation of the motor when the output member and the roller are engaged causes movement of the roller relative to the tarp. A crank is releasably connected with the roller, wherein one of the crank and the roller is connected to a coupler and the other of the crank and the roller is connected to a joint. When the output member and the roller are disengaged and the crank is connected with the roller, rotation of the crank causes movement of the roller relative to the tarp.

Abstract: A roll tarp system is provided which includes a container, a roll pipe, a tarp sized to cover an open top of the container, a power mechanism for rolling the roll pipe from a closed position in which the tarp covers the open top to an open position in which the open top is exposed, and an arm assembly having a flexible arm portion. The arm assembly biases the roll pipe toward the closed position when the roll pipe is in the open position.

Abstract: A roll tarp system is provided which includes a container, a roll pipe, a tarp sized to cover an open top of the container, a power mechanism for rolling the roll pipe from a closed position in which the tarp covers the open top to an open position in which the open top is exposed, and an arm assembly having a flexible arm portion. The arm assembly biases the roll pipe toward the closed position when the roll pipe is in the open position.

Abstract: A roll tarp system is provided which includes a container, a roll pipe, a tarp sized to cover an open top of the container, a power mechanism for rolling the roll pipe from a closed position in which the tarp covers the open top to an open position in which the open top is exposed, and an arm assembly having a flexible arm portion. The arm assembly biases the roll pipe toward the closed position when the roll pipe is in the open position.

Abstract: A roll tarp system is provided which includes a container, a roll pipe, a tarp sized to cover an open top of the container, a power mechanism for rolling the roll pipe from a closed position in which the tarp covers the open top to an open position in which the open top is exposed, and an arm assembly having a flexible arm portion. The arm assembly biases the roll pipe toward the closed position when the roll pipe is in the open position.

Abstract: A relatively lightweight tarping system for use with trailers or other open top containers includes first and second spaced frame members and an elongated flexible member such as a cable or chain connected to and extending therebetween. A tarpaulin may be mounted thereon so that the frame members, flexible member and tarpaulin are pivotable between a covered position atop the open top container and an uncovered position. A four-bar linkage is preferably used in combination with a rotational drive mechanism to provide various advantages in rotating the tarpaulin assembly between the covered and uncovered positions. A width adjustment mechanism is provided to provide usage with trailers or other open top containers of different widths. An improved seal is provided between the tarpaulin and container.

Abstract: A relatively lightweight tarping system for use with trailers or other open top containers includes first and second spaced frame members and an elongated flexible member such as a cable or chain connected to and extending therebetween. A tarpaulin may be mounted thereon so that the frame members, flexible member and tarpaulin are pivotable between a covered position atop the open top container and an uncovered position. A four-bar linkage is preferably used in combination with a rotational drive mechanism to provide various advantages in rotating the tarpaulin assembly between the covered and uncovered positions. A width adjustment mechanism is provided to provide usage with trailers or other open top containers of different widths. An improved seal is provided between the tarpaulin and container.

Abstract: A relatively lightweight tarping system for use with trailers or other open top containers includes first and second spaced frame members and an elongated flexible member such as a cable or chain connected to and extending therebetween. A tarpaulin may be mounted thereon so that the frame members, flexible member and tarpaulin are pivotable between a covered position atop the open top container and an uncovered position. A four-bar linkage is preferably used in combination with a rotational drive mechanism to provide various advantages in rotating the tarpaulin assembly between the covered and uncovered positions. A width adjustment mechanism is provided to provide usage with trailers or other open top containers of different widths. An improved seal is provided between the tarpaulin and container.

Abstract: A cross-member for a trailer frame and a frame incorporating the same. The cross-member extends between longitudinally aligned rails designed to pivotally support a dumping body thereon. The cross-member includes a cylindrical tube having a wall defining a bore therethrough. A planar member is received within the bore and is axially aligned therewith. The tube includes one or more axially aligned openings proximate a central region thereof. The planar member is disposed intermediate the openings and is aligned axially with the openings. The cross-member is substantially rigid under tension and at least a portion thereof is flexible under torsion.

Abstract: A relatively lightweight tarping system for use with trailers or other open top containers includes first and second spaced frame members and an elongated flexible member such as a cable or chain connected to and extending therebetween. A tarpaulin may be mounted thereon so that the frame members, flexible member and tarpaulin are pivotable between a covered position atop the open top container and an uncovered position. A four-bar linkage is preferably used in combination with a rotational drive mechanism to provide various advantages in rotating the tarpaulin assembly between the covered and uncovered positions. A width adjustment mechanism is provided to provide usage with trailers or other open top containers of different widths. An improved seal is provided between the tarpaulin and container.

Abstract: A relatively lightweight tarping system for use with trailers or other open top containers includes first and second spaced frame members and an elongated flexible member such as a cable or chain connected to and extending therebetween. A tarpaulin may be mounted thereon so that the frame members, flexible member and tarpaulin are pivotable between a covered position atop the open top container and an uncovered position. A four-bar linkage is preferably used in combination with a rotational drive mechanism to provide various advantages in rotating the tarpaulin assembly between the covered and uncovered positions. A width adjustment mechanism is provided to provide usage with trailers or other open top containers of different widths. An improved seal is provided between the tarpaulin and container.

Abstract: A cross-member for a trailer frame and a frame incorporating the same. The cross-member extends between longitudinally aligned rails designed to pivotally support a dumping body thereon. The cross-member includes a cylindrical tube having a wall defining a bore therethrough. A planar member is received within the bore and is axially aligned therewith. The tube includes one or more axially aligned openings proximate a central region thereof. The planar member is disposed intermediate the openings and is aligned axially with the openings. The cross-member is substantially rigid under tension and at least a portion thereof is flexible under torsion.

Abstract: A relatively lightweight tarping system for use with trailers or other open top containers includes first and second spaced frame members and an elongated flexible member such as a cable or chain connected to and extending therebetween. A tarpaulin may be mounted thereon so that the frame members, flexible member and tarpaulin are pivotable between a covered position atop the open top container and an uncovered position. A four-bar linkage is preferably used in combination with a rotational drive mechanism to provide various advantages in rotating the tarpaulin assembly between the covered and uncovered positions. A width adjustment mechanism is provided to provide usage with trailers or other open top containers of different widths. An improved seal is provided between the tarpaulin and container.

Abstract: A relatively lightweight tarping system for use with trailers or other open top containers includes first and second spaced frame members and an elongated flexible member such as a cable or chain connected to and extending therebetween. A tarpaulin may be mounted thereon so that the frame members, flexible member and tarpaulin are pivotable between a covered position atop the open top container and an uncovered position. A four-bar linkage is preferably used in combination with a rotational drive mechanism to provide various advantages in rotating the tarpaulin assembly between the covered and uncovered positions. A width adjustment mechanism is provided to provide usage with trailers or other open top containers of different widths. An improved seal is provided between the tarpaulin and container.

Abstract: A relatively lightweight tarping system for use with trailers or other open top containers includes first and second spaced frame members and an elongated flexible member such as a cable or chain connected to and extending therebetween. A tarpaulin may be mounted thereon so that the frame members, flexible member and tarpaulin are pivotable between a covered position atop the open top container and an uncovered position. A four-bar linkage is preferably used in combination with a rotational drive mechanism to provide various advantages in rotating the tarpaulin assembly between the covered and uncovered positions. A width adjustment mechanism is provided to provide usage with trailers or other open top containers of different widths. An improved seal is provided between the tarpaulin and container.

Abstract: A crane comprising a boom formed as an elongate tubular structure and a line assembly to extend a line from a least one end of the boom. The line assembly may include a first bank of sheaves, a second bank of sheaves, a line reeved around the first and second banks of sheaves, and an extension mechanism controlling the distance between the first and second banks of sheaves. The second bank of sheaves and at least a portion of the extension mechanism being enclosed within boom.

Abstract: A relatively lightweight tarping system for use with trailers or other open top containers includes first and second spaced frame members and an elongated flexible member such as a cable or chain connected to and extending therebetween. A tarpaulin may be mounted thereon so that the frame members, flexible member and tarpaulin are pivotable between a covered position atop the open top container and an uncovered position. A four-bar linkage is preferably used in combination with a rotational drive mechanism to provide various advantages in rotating the tarpaulin assembly between the covered and uncovered positions. A width adjustment mechanism is provided to provide usage with trailers or other open top containers of different widths. An improved seal is provided between the tarpaulin and container.