You are an expert at summarizing long articles. Proceed to summarize the following text:

You are an expert at summarizing long articles. Proceed to summarize the following text: 
FIELD OF APPLICATION OF THE INVENTION 
     This invention relates to the field of modular blocks such as those used in building a wall with mortar. 
     DESCRIPTION OF THE INVENTION 
     Encompassing lock blocks are composed of extension means, channel means, protruded means, and recess means. The protruded means bordering the recess means. Two recesses are disposed in the extension means and one recess in the rear channel means. When the extension means engages the channel means, the protruded means engage the recesses. 
     The block consists of three sections, the face, center and back. The face and center are of equal size while the back half the length of the face. The center becomes the extension when raised up and forward between the face and back creating the channel. 
     When multiple building block with the features disclosed above are staggered to create a wall, the blocks lock with surrounding blocks such that no mortar or skill is required for assembly. Blocks will automatically align when a first course is properly set into a footing and leveled. 
     It is believed there are no other blocks or bricks with these feature which require no mortar or skill for assembly. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  shows the main block. 
         FIG. 2  shows a view of another embodiment of the main block. 
         FIG. 3  shows another view of the main block of  FIG. 2 . 
         FIG. 4  shows a top view of a half block. 
         FIG. 5  shows a top view of another embodiment of the half block. 
         FIG. 6  shows a top view of  FIG. 1 . 
         FIG. 7  shows a top view of an angle block 
     
    
    
     DETAILED DESCRIPTION 
     The drawing of  FIG. 1  shows a face of the block that will be the exterior wall and look like a brick. 
     The drawing of  FIG. 2  shows the rear view that is the interior and means ( 5 ) on which a longitudinal will rest. 
     The drawing of  FIG. 3  shows the bottom view at an angle; the channel means ( 2 ), protrusion means ( 3 ), and recesses means ( 4 ). The rear protrusion means ( 3 ) in the extension mean ( 1 ) is locked into the channel ( 2 ) of a next course. When blocks are staggered, each block locks into adjacent blocks on both sides, one above, and one below. The short back section of the block provides a rest means ( 5 ) on every course of the wall for a longitudinal or U beam. When assembled the interior will look like a checkerboard. Means ( 5 ) providing a space between each block to provide structural support and the rest for ceilings and floor beams. 
     The building blocks automatically align when a first course is properly set into a footing and leveled. There is no possibility the face to loosen from the blocks center, therefore, no falling bricks. 
     The drawing of  FIGS. 4, 5, and 7  shows corner blocks and angle blocks that can be made into square and octagon pillars, and also to change direction of a wall structure. All the blocks shown have the same interlocking features, which is Means  1  thru  4 , with the exception of means  5 . 
     The drawing of  FIG. 6  shows a top view of the block that will be the exterior wall. 
     The described features allow the building blocks to automatically align with a first course set into a footing and leveled. There is no possibility a face would to loosen from the blocks center, therefore, no falling bricks resulting in a far more superior construction compared to mortar construction.

Summary:
Building builds with locking features for adjoining and interlocking similar adjacent building blocks without any mortar using protruded means and channel means. The building blocks can vary in size and shape to form corners, octagons, angles and direction change.