The present invention relates to a device which has been specially conceived to apply, in a fast and simple manner, the necessary mortar in the construction of walls using bricks or other similar materials, said mortar acting as a bonding agent between the different rows of bricks that comprise the wall, the device proposed by the invention consists of a framework (1) comprised of a determined rectangular frame (2), of suitable size, configured to adopt a horizontal position in use conditions and being conveniently raised above the ground, by means of legs (3) of adjustable length for the purpose of adapting the work plane to the height required by each user, two of said legs (3) preferably ending in wheels (4), opposite to which the frame (2) includes projections (5) in the form of grips which convert the framework into a mobile cart so as to facilitate its onsite displacement.

At least two of the profiles that comprise said frame (2) include a lower flap (6) that projects horizontally inwards, as shown in figure 1, in such a manner that both flaps (6) are configured to support a plurality of loaders (7) that receive the mortar paste and comprise dispensers which are individually removed from the cart and emptied over an already laid row of bricks. Parallel to said flaps (6) and at its centre, the frame (2) includes a Crossbar (8) to support the pans or loaders (7), in order to prevent sagging thereof.