Material dispensing apparatus

Abstract: Apparatus for dispensing material such as chopped straw, the apparatus (10) including a hopper (20) with a pair of augers (26) extending across a lower part thereof above an opening (24). Provided below the opening (24) is a conveyor (28) which can be driven in either direction at high speeds to project material from the apparatus.

Description: This invention concerns material dispensing apparatus, and particularly but not exclusively apparatus for dispensing chopped straw or similar materials. Such an apparatus is shown in DE-B-2 918 519. In cattle farming it is conventional to provide a plurality of stalls for cattle to sleep in. These are often arranged in line adjacent to a passageway along which a tractor or other vehicle can move. Such stalls are usually lined with chopped straw or perhaps sawdust or wood savings, which liner material requires regular renewal. Traditionally, straw has been chopped in situ by machinery and directed into the stalls. This is a very dusty job producing unpleasant working conditions. According to the present invention there is provided material dispensing apparatus with the features of claim 1. The conveyor is preferably operable at such a speed so as to project material from the apparatus. The conveyor preferably comprises an endless belt. The agitating means is preferably constructed so as to provide a substantially constant flow of material from the receptacle to the conveyor. The agitating means may comprise an auger and preferably a pair of parallel augers arranged to rotate in opposite directions. The receptacle is preferably in the form of an open-topped hopper, which desirably has an upwardly diverging cross-section. An opening is preferably provided at the bottom of the receptacle immediately above the conveyor. The augers are preferably located extending across a lower part of the receptacle, with the opening located substantially therebelow. The apparatus is removably mountable on a tractor or similar vehicle, and the agitating means and/or conveyor are preferably arranged to be drivable by the tractor or similar vehicle. The hopper or apparatus is preferably arranged to be pivotal relative to a vehicle upon which the apparatus is mounted such that material can be scooped up by the hopper. An embodiment of the present invention will now be described by way of example only with reference to the accompanying drawings, in which:- Fig. 1 is a diagrammatic end view of apparatus according to the invention; and Fig. 2 is a diagrammatic side view of the apparatus of Fig. 1. The drawings show material dispensing apparatus 10 suitable for dispensing material such as chopped straw into cattle stalls. The apparatus 10 comprises a frame 12 including two U-shaped members 14 spaced apart and interconnected by side bars 16. Additional cross-members (not shown) may be provided extending between the side bars 16. Mounting brackets 18 in the form of sleeves are provided on each of the members 14 on a respective one of the side limbs towards the upper end thereof. A hopper 20 is mounted on the frame 12 with the lowermost part of the hopper 20 spaced above the base of the members 14. The hopper 20 has upwardly diverging walls 22. An opening 24 is provided in the base of the hopper 20. Located in the hopper 20 are a pair of augers 26 arranged parallel to the side bar 16, so as to rotate in opposite directions relative to each other. The augers 26 are arranged to be drivable by the hydraulic drive of a tractor or similar vehicle. Mounted on the frame 12 beneath the hopper 20 is a high speed conveyor 28. The conveyor 28 comprises an endless belt 30 and extends parallel to the bars 16 for substantially the whole length thereof. The conveyor 28 is drivable by a motor 32 connectable to the hydraulic supply from a tractor or similar vehicle. The conveyor 28 is switchable so as to be selectively movable in either direction. Operation of the apparatus will now be described. When not in use, the apparatus 10 can rest on the ground or elsewhere with the frame 12 engaging the ground. When it is required to use the apparatus 10, the apparatus 10 is mounted on a tractor or similar by fingers or other components on the front or perhaps elsewhere on the tractor, engaging in the sleeves 18. The augers 26 and motor 32 are connected to the hydraulic supply of the tractor. The frame 12 can then be lifted off the ground. The apparatus 10 can be pivotted relative to the tractor to permit chopped straw to be scooped up from a pile into the hopper 20. Once the hopper 20 contains straw it can be returned to a horizontal alignment. When the tractor is adjacent a cattle stall or other location where chopped straw is to be delivered, the augers 26 and conveyor 28 are operated. The augers 26 prevent bridging or other blocking of the straw and provide a substantially constant stream of straw onto the conveyor 28. The speed of the conveyor 28 is such as to project straw thereoff into a required place. The direction of the conveyor 28 can obviously be switched to a required direction depending on the orientation of the tractor relative to the cattle stores etc. Once a load of straw has been dispensed the hopper 20 can be reloaded in a similar manner. There is thus described apparatus which permits material such as chopped straw to readily be dispensed into required locations. The apparatus permits ready loading thereof and dispensing in a required direction dependent on the orientation of a carrying vehicle. The apparatus is of relatively simply construction and thus permits inexpensive manufacture and reliable operation. Using this apparatus permits chopped straw to be distributed in a way which is much more friendly to workers. The straw can initially be chopped where harvested, i.e. out of doors, and stored chopped. Various modifications may be made without departing from the scope of the invention. For example, different means could be provided for agitating the product in the hopper. The hopper could be arranged to be pivotal on the frame to facilitate loading of material thereinto. Any appropriate mounting means could be provided on the frame. Whilst the embodiment is described in relation to spreading chopped straw, such apparatus could readily be used for dispensing a wide range of material such as for instance wood shavings or sawdust. Whilst endeavouring in the foregoing specification to draw attention to those features of the invention believed to be of particular importance it should be understood that the Applicant claims protection in respect of any patentable feature or combination of features hereinbefore referred to and/or shown in the drawings whether or not particular emphasis has been placed thereon.

Claims: Material dispensing apparatus (10), the apparatus (10) comprising a receptacle (20) for material to be dispensed, means (26) for agitating material within the receptacle (20), a conveyor (28) in communication with the receptacle (20) to receive material therefrom and to dispense material from the apparatus (10), characterised in that the conveyor (28) extends transversely and is reversible so as to permit material to be selectively dispensed to opposite sides of the apparatus (10), the apparatus (10) being removably mountable on a tractor or similar vehicle to be carried thereby. Apparatus according to claim 1, characterised in that the conveyor (28) is operable at such a speed so as to project material from the apparatus (10). Apparatus according to claim 1 or 2, characterised in that the conveyor (28) comprises an endless belt (30). Apparatus according to any of the preceding claims, characterised in that the agitating means (26) is constructed so as to provide a substantially constant flow of material from the receptacle (20) to the conveyor (28). Apparatus according to any of the preceding claims, characterised in that the agitating means comprises an auger (26). Apparatus according to claim 5, characterised in that the agitating means comprises a pair of parallel augers (26) arranged to rotate in opposite directions. Apparatus according to any of the preceding claims, characterised in that an opening (24) is provided at the bottom of the receptacle (20) immediately above the conveyor (28). Apparatus according to claim 7 when dependent on claims 5 or 6, characterised in that the or each auger (26) is located extending across a lower part of the receptacle (20), with the opening (24) located substantially therebelow. Apparatus according to any of the preceding claims, characterised in that the receptacle is in the form of an open-topped hopper (20). Apparatus according to claim 9, characterised in that the hopper (20) has an upwardly diverging cross-section. Apparatus according to any of the preceding claims, characterised in that the agitating means (26) and/or conveyor (28) are arranged to be drivable by the tractor or similar vehicle. Apparatus according to any of the preceding claims, characterised in that the receptacle (20) or apparatus (10) is arranged to be pivotal relative to a vehicle upon which the apparatus (10) is mounted such that material can be scooped up by the receptacle (20).

Inventors: GARNETT ANDREW JOHN, GARNETT, ANDREW JOHN
Applicants: GARNETT ANDREW JOHN, GARNETT, ANDREW JOHN
Application year: 1997
Main classification: A01K5
IPC codes: A01D90, A01K5