Abstract: A safety device (12) is disclosed for use in a hydraulic pump system (10). The device includes a generator (20) mounted between the power take off (14) and the hydraulic pump (24). Any time the hydraulic pump (24) is operated by the pto shaft (18) of the power take off (14), the generator is also powered to generate power to operate an audible alarm (28) such as a horn, siren or bell to warn the operator of pump operation. In a second embodiment, hydraulic pump system (100) uses a standard, readily available alternator (102) to generate power to operate the audible alarm (28). A selector valve (202) can be positioned between the pump (24) and lift cylinder to divert hydraulic fluid to a reservoir if the pump is inadvertently activated. The selector valve (202) can be operated manually by the driver when the vehicle is about to be put in motion by operating a control valve (212) or automatically by sensing vehicle motion, such as done by sensors in an ABS brake control.

Abstract: A safety device (12) is disclosed for use in a hydraulic pump system (10). The device includes a generator (20) mounted between the power take off (14) and the hydraulic pump (24). Any time the hydraulic pump (24) is operated by the pto shaft (18) of the power take off (14), the generator is also powered to generate power to operate an audible alarm (28) such as a horn, siren or bell to warn the operator of pump operation. In a second embodiment, hydraulic pump system (100) uses a standard, readily available alternator (102) to generate power to operate the audible alarm (28). A selector valve (202) can be positioned between the pump (24) and lift cylinder to divert hydraulic fluid to a reservoir if the pump is inadvertently activated. The selector valve (202) can be operated manually by the driver when the vehicle is about to be put in motion by operating a control valve (212) or automatically by sensing vehicle motion, such as done by sensors in an ABS brake control.

Abstract: A dual side tarp (10) is disclosed which allows the operator to shift the fixed tube of the tarp from one side of the trailer (12) to the other very quickly and efficiently to allow one side or the other of the trailer to be numbered to facilitate side dumping, for example. Use of pivoting tarp roll stop allows the shifting to be accomplished.

Abstract: A dual side tarp (10) is disclosed which allows the operator to shift the fixed tube of the tarp from one side of the trailer (12) to the other very quickly and efficiently to allow one side or the other of the trailer to be unencumbered to facilitate side dumping, for example. Use of pivoting tarp roll stops allows the shifting to be accomplished.

Abstract: A vehicle (10) which includes a trailer (14) having a frame (16). A first tank (22) is mounted at the forward end of the trailer (14) and a second tank (26) is mounted at the rear of the trailer (14). A dump body (30) is mounted on the trailer (14) between the first and second tanks. The dump body provides the ability to transport solid material and dump the material to either side of the trailer. The first and second tanks provide the ability to transport liquid material. A conduit (32) can be provided between the first and second tanks to shift fluid between the tanks.

Abstract: A dual dump trailer assembly (10) is provided which provides for operating two end dump trailers (12, 14) with a single cab (16). The operation is possible by use of a movable pedestal (30) having a fifth wheel mounted on the forward end dump trailer (12). The pedestal (30) is in the rearward, trailing position to attach the rearward end dump trailer (14) at the fifth wheel (110) on the pedestal for towing. Upon arrival at the dump site, the rearward end dump trailer (14) can be dumped and then detached from the forward end dump trailer (12). The pedestal (30) mounting the fifth wheel will move forward to a forward, dumping position, permitting the contents of the forward end dump trailer (12) to be dumped.

Abstract: A dual dump trailer assembly (10) is provided which provides for operating two end dump trailers (12, 14) with a single cab (16). The operation is possible by use of a movable pedestal (30) having a fifth wheel mounted on the forward end dump trailer (12). The pedestal (30) is in the rearward, trailing position to attach the rearward end dump trailer (14) at the fifth wheel (110) on the pedestal for towing. Upon arrival at the dump site, the rearward end dump trailer (14) can be dumped and then detached from the forward end dump trailer (12). The pedestal (30) mounting the fifth wheel will move forward to a forward, dumping position, permitting the contents of the forward end dump trailer (12) to be dumped.

Abstract: A dual trailer assembly (10) is provided which provides for operating two end dump trailers (12, 14) with a single cab (16). The operation is possible by use of a moveable pedestal (30) having a fifth wheel mounted on the forward end dump trailer (12). The pedestal (30) is in the rearward, trailing position to attach the rearward end dump trailer (14) at the fifth wheel (110) on the pedestal for towing. Upon arrival at the dump site, the rearward end dump trailer (14) can be dumped and then detached from the forward end dump trailer (12). The pedestal (30) mounting the fifth wheel will move forward to a forward, dumping position, permitting the contents of the forward end dump trailer (12) to be dumped.

Abstract: A trailer for selectively transporting either a first or second substance is disclosed. The trailer includes a substantially flat bed and has two containers disposed thereon, each of which is capable of storing a different type of substance. An operator may choose to transport materials in either one of the two containers. Accordingly, the container to transport the substance is shifted toward a balanced load distribution point along the trailer while the empty container is moved to one end of the trailer. In the preferred embodiment, the two containers are coupled together so that the movement of one container along the trailer automatically causes a corresponding movement in the other. One container moves along the trailer by virtue of a plurality of wheels while the other slides along rails separated by a bearing.

Abstract: A trailer body (600) and pedestal (604) are provided where the pedestal supports an axle assembly (605) which is pivotally secured to the pedestal so that when the pedestal is in the forward position to permit trailer dumping, the axle assembly pivots about the pedestal to keep all wheels (612) on the ground. A safety plate (630) can be mounted between a frame and pedestal to prevent structure from being wedged between the transverse beams of the frame and pedestal as the pedestal slides relative to the frame. Also, a striker plate (616) is employed to prevent a locking wedge (622) from interfering with movement of the pedestal relative to the frame until the pedestal is either in the rearward position or in the forward position. A fender structure (614) is provided which acts as a fender when the pedestal is in the rearward position, but is not damaged as the pedestal moves to the forward position.

Abstract: Various vehicles (10, 200, 300) are provided with a rear supporting pedestal (30, 208, 316) which is movable between a forward position and a rearward position. In the forward position, the trailer unit of the vehicle can be tilted from the horizontal for dumping a payload or mounting or demounting a roll off container (318). In the rearward position, the effective legal wheel base of the vehicles is increased, permitting the gross vehicle load to be greater. The ability to vary the wheel base thus provides an increase in legal payload resulting in greater operating efficiency. In addition, a front helper lifter assembly (500) is disclosed which can be used to assist the lifting cylinders on a trailer in moving the tilting member of the trailer from the horizontal position.

Abstract: A vehicle (10) is disclosed which includes a power unit (14) and an end dump trailer (12). The legal payload of the trailer (12) is increased by using a sliding pedestal (30) mounting rear tandem wheel unit (18). The pedestal (30) is slidable to a forward position for dumping and to a rearward position for traveling on a public highway. The unit (18) includes a pedestal (30) slidable along the frame (33) of the trailer body (16) on polyethylene pads (34). Cooperating frame wedges (38, 40, 42) and pedestal wedges (44, 46) wedge the pedestal (30) in the forward and rearward positions. Locking wedges (58, 60) lock the pedestal in the forward and rearward positions. Polyethylene guide blocks (68) align the pedestal (30) with the frame (33).