Mobile concrete station

Claim 1

A mobile or movable concrete station which is composed of several separate interconnectable units performing the functions required for mixing high-grade concrete including the weighing and charging of aggregate material and cement, the addition of water in a proportion determined by the mixing prescription being used, and the mixing of the ingredient substances, said mobile station comprising as separate units at least one aggregate weighing Unit, at least one cement silo unit, a belt conveyor unit, and a concrete mixer unit; said aggregate weighing unit including a cement scale vessel disposed adjacent the discharge end of said aggregate weighing unit for adding weighed cement to the aggregate material at the starting end of said conveyor unit; said conveyor unit being adapted to connect said aggregate weighing unit with said concrete mixer unit; each of said separate units being mounted on at least one wheeled carriage so that each unit individually or coupled in pairs can be transported by means of a traction vehicle or by railway; at least the cement silo unit, the belt conveyor unit, and the concrete mixer unit being provided with telescopic hydraulic cylinders adapted to move each said unit from a transport position into an operating position; the silo portion of said cement silo unit resting in its transport position on a front carriage to which it is detachably connected and on a rear carriage to which it is connected by means of studs which form a swing axle about which said silo portion can be erected by means of said hydraulic cylinders from its transport position into its operating position; said concrete mixer unit comprising a foundation connected to both a front carriage and a rear carriage each of said mixer unit carriages being hingedly connected to said foundation at one end thereof and having wheels at its other end, the hydraulic cylinders for moving the mixer unit from its transport position to its operating position being arranged between said foundation and said carriages and being operative, when actuated, to cause the mixer unit carriages to move from a substantially horizontal transport position to a raised operating position by a rolling of the carriage wheels about the respective hinged connections between said carriages and said foundation.