A working machine includes: a first generator having: a rotor to be rotated by power from a PTO shaft; a rotor coil provided to the rotor; and a stator coil to generate electricity when magnetizing current is applied to the rotor coil; a working device to be operated by the electricity generated by the first generator; and a converter device to convert surplus electricity not consumed by the working device into the magnetizing current to be applied to the rotor coil.

A spreading device is disclosed for spreading vehicles for discharging spreading agents. The spreading device includes at least one tank for receiving liquid spreading agents to be spread and at least one rotationally-driven discharge device, connected via a provided supply unit to the tank. The discharge device has at least one base body and one cover securely connected to the base body, wherein the base body defines a receiving chamber (AR) for the supplied liquid spreading agent and is in the shape of a cylinder. The base body has at least one bottom section, forming an underside (U) of the discharge device, with an inlet opening and at least one wall section projecting from the bottom section and concentrically surrounding an axis of rotation (RA). The discharge device has multiple discharge units, each having a discharge opening, for dispensing the liquid spreading agent from the receiving chamber (AR).

The invention provides a transportable agricultural bin for storing and dispersing an agricultural material. The invention also provides a trailer or a vehicle including the transportable agricultural bin.

A walk behind broadcast spreader (1) that is propelled by an electric motor (8), rotates a set of powered wheels (7) and an impeller (3). An individual may walk behind the broadcast spreader and simply steer the broadcast spreader as the electric motor propels the broadcast spreader forward.

A powder/granular material spreader that allows easy cleaning of a passage for powder/granular material includes a housing that houses motors, a passage that extends through the housing and provides a passage for the powder/granular material, a roller provided in the passage to feed the powder/granular material and that is driven by one of the motors, and a spinner driven by the motor to spread the powder/granular material. The passage includes an integral first wall that shields the motor from the passage, an integral second wall that shields the motor from the passage, and an opening located at an inlet of the passage. The opening is integral with the first wall and the second wall. The housing includes an integral cover that covers tops and sides of the motors, and fits over an outer surface of the opening. A seal is provided at a location where the opening and the cover are connected with each other.

A method of spreading granular material by a spreader utilizes first and second rotatingly drivable centrifugal disks arranged side by side, and includes steps of: detecting a field-internal spreading boundary, which extends ahead of the spreader in a direction of movement of the spreader and which necessitates an adaptation of distribution characteristics of the spreader during traveling on at least one tramline; reducing an amount of granular material applied to the second centrifugal disk, which is part of the spreader and which faces the field-internal spreading boundary, during traveling through a first range close to the field-internal spreading boundary; and increasing the amount of granular material applied to the first centrifugal disk, which is part of the spreader and which faces away from the field-internal spreading boundary, during traveling through the first range close to the field-internal spreading boundary.

The present inventors have recognized that a spinner spreader system may be augmented with an air assist system in which an air current is generated to engage particles after they have left the spinner spreader system to thereby enhance the trajectory of the particles. In one aspect, one or more fans with appropriate ductwork may be added below one or more spinning disks to direct jets or curtains of air in the direction of the broadcast pattern of particles leaving the one or more disks. The directed air stream should preferably be faster than the particles leaving the one or more disks, thereby adding additional acceleration to the particles compensating opposing forces.

A spreader having a hopper for particulate material with discharge openings over two separate different areas along the hopper bottom, a pair of wheels upon separate drive shafts mounted for rotation to a lower frame which supports the hopper, and a rear frame extending from the hopper to provide a pair of handles. Two rotatable shafts with agitator elements are mounted over each of the different hopper areas. Each of the agitator shafts are coupled for rotation by different ones of the drive shafts. Two gates with openings are disposed below the hopper each along different ones of the areas dividing the hopper bottom. Each gate is movable to close and open the openings of the hopper in the area associated with the gate. A pair of controllers are provided each coupled to a different one of the two gates to independently move the gates between open and close positions.

A hand-held spreader is provided having a housing with a compartment for particulate material, a chamber below the compartment having a bottom wall with a circular aperture, an impeller mounted for rotation in the chamber along such bottom wall responsive to a hand crank, a discharge opening, and a path along which the particulate material passes into the chamber for discharge via the discharge opening. The impeller has an outer circular periphery proximal to and extending over an outer edge of the aperture to form a gap between the impeller and the bottom wall of the chamber that seals the gap from the particulate material larger than the gap from entering under the impeller and risking obstruction of impeller rotation. Any particulate material that enters the gap passes downward through the aperture to enable self-cleaning of particulate material that would otherwise collect under the impeller in the chamber.

A spreader includes a frame having wheels mounted on an axle. A gear assembly on the axle is coupled with a shaft. A hopper is mounted on the frame and holds particulate that empties through an opening within the bottom wall. An impeller is mounted on the shaft and receives the particulate emptied from the hopper. A controlled-release assembly is mounted about the shaft and includes a drive housing secured to the hopper. The drive housing has a funnel opening to dispense the particulate therethrough. A transfer wheel within the drive housing is rotatably coupled to the shaft. When the shaft is rotating, the transfer wheel rotates whereby the particulate is delivered to the funnel. When the shaft is stationary, the transfer wheel is stationary whereby particulate is not delivered to the funnel.