Abstract: Apparatus for mixing metered quantities of cement with metered quantities of water has a horizontal housing with a first section having an inlet for admission of cement, a cylindrical intermediate section which receives cement from the first section, and a mixing chamber which receives cement from the intermediate section and further receives metered quantities of water by way of a pipe. A feed screw is rotatably mounted in the first and intermediate sections to convey cement toward and into the mixing chamber. The thread of the feed screw carries radially outwardly extending paddles which are located in the first section and prevent accumulations of cement in the space around the corresponding portion of the feed screw. The mixing chamber is connected to the intermediate section by a hinge and contains a rotary mixing element whose shaft is separably coupled to the core of the feed screw.

Abstract: Apparatus for the preparation of mortar has a wheel-mounted frame for an elongated vessel which receives metered quantities of solid and liquid constituents from discrete feeding units. The vessel has an outlet and contains a rotary homogenizing and evacuating device which mixes the solid and liquid constituents to form mortar and advances the mortar toward and through the outlet. Mortar issuing from the outlet of the vessel can be discharged into a separate container which is mounted in or on the frame and is connected with one or more evacuating pumps, into wheelbarrows or into the container of a conventional mortar mixing machine. The feeding unit for solid constituent may receive material by gravity flow or under the action of a rotary screw in a receptacle which is mounted in the frame at a level above the vessel and receives solid constituent from a pneumatic conveyor.