Abstract: Mixing apparatus, typically a tractor powered agricultural trailer for mixing and dispensing animal feedstuffs, has a main body in which a main mixing rotor rotates for agitating and stirring the material which it sweeps round lower part-cylindrical wall structure of the body and a lateral extension along an upper side of the main body having a feed out rotor therein for urging the material to and through a discharge door in said extension. The inboard side of the extension is open to the main part of the body and said wall structure includes a part bounding the bottom of the extension which can be moved angularly between a first position close to the envelope of revolution of the mixing rotor to deflect material from entering the extension during mixing and a second position at which it is remote from said envelope so that material is swept into the extension during discharge.

Abstract: A spreader vehicle, particularly for agricultural use in handling farmyard manure and slurry material ranging from free-flowing liquid to solid consistency, includes a body having one or more discharge openings in a lower part and conveniently to one side of the body, with a rotating impeller immediately outside the opening(s) for broadcast distribution of the material and a feed rotor, for example a large diameter auger, within the body and rotating in close proximity to its floor and at least the lower part of an opening for controlled feed of non-free flowing material through that opening. Preferably the impeller and the feed rotor are driven in the same direction of rotation about parallel horizontal axes so that the material is fed beneath both those axes, and the rate of passage of material through the opening(s) is regulated by a sliding door(s) or other closure means.

Abstract: A mixing device for bulk materials, particularly an agricultural trailer for mixing and dispensing silage, concentrates and other animal feedstuffs, includes a non-tipping body (10) within which rotates a main agitator (12) having members (14) which travel closely along the walls (11) of a lower zone of the body to carry material therein upwardly during part of their travel, and a secondary rotating agitator (16) towards the top and to one side of the body which operatively intercepts material carried towards it by the main agitator, separates it therefrom and returns it thereto. A part (15) of the body containing the secondary agitator can be opened for discharge of material under the same action of the agitators, in the case of a feed trailer discharge being at sufficient height to clear the feed fence of a stockyard.