Abstract

A trailer assembly has a frame, wheels attached to and bearing the frame and a hopper mounted on the frame. A front conveyor belt is mounted in a front part of the hopper and is operable to rearwardly convey contents of the hopper overlying the belt. A rear conveyor belt is mounted in a rear part of the hopper and is operable in a first mode to rearwardly convey contents of the hopper overlying the rear belt and is operable in a second mode to forwardly convey contents of the hopper overlying the second conveyor belt. Depending on the direction of conveyance of the rear conveyor belt, the two conveyor belts can be operated either to convey contents for dumping through a rear gate or to convey contents for dumping through a bottom gate.

IPC Classes  ?

• B60P 1/38 - Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using endless chains or belts thereon forming the main load supporting or containing element or part thereof
• B60P 1/56 - Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading the load supporting or containing element having bottom discharging openings

Abstract

A system and method for weighing varying throughput of conveyed particulate material. The system has a weighing unit for measuring weight of material conveyed on a span of the conveyor and a speed monitoring unit to monitor the speed of the conveyor. A control module is programmed to calculate the instant value of material conveyed per unit length of the conveyor. An output from the control module reduces conveyor speed in response to a reduction in measured weight of material conveyed and increases conveyor speed in response to an increase in measured weight of material conveyed. High accuracy of measurement of the weight of particulate material being conveyed even when the conveyor is lightly loaded.

IPC Classes  ?

• G01G 11/00 - Apparatus for weighing a continuous stream of material during flowConveyor-belt weighers

Abstract

A system and method for weighing varying throughput of conveyed particulate material. The system has a weighing unit for measuring weight of material conveyed on a span of the conveyor and a speed monitoring unit to monitor the speed of the conveyor. A control module is programmed to calculate the instant value of material conveyed per unit length of the conveyor. An output from the control module reduces conveyor speed in response to a reduction in measured weight of material conveyed and increases conveyor speed in response to an increase in measured weight of material conveyed. High accuracy of measurement of the weight of particulate material being conveyed even when the conveyor is lightly loaded.

IPC Classes  ?

• B65G 43/08 - Control devices operated by article or material being fed, conveyed, or discharged
• G01G 11/12 - Apparatus for weighing a continuous stream of material during flowConveyor-belt weighers having means for controlling the rate of feed or discharge by controlling the speed of the belt