Wall construction blocks and mortarless method of construction

Claim 1

A rectangular shaped block for use in constructing vertical walls and the like, said block comprising a solid member of a material having sufficient strength for use in a wall, said member having parallel top and bottom surfaces with a pair of spaced apart cavities extending between said surfaces and defining parallel end walls joined by front and rear walls and a wall central of said front and rear walls, each of said end walls having a vertical opening extending therethrough, said central wall having an opening extending from the top surface part way to the bottom surface, the opening in said central wall being substantially larger than the openings in said end walls, a rod positioned in the opening in each end wall, and means provided to normally hold said rod in said opening, said means being a substance that will release said rod when heat above a normal ambient temPerature range is applied to said block.

Claim 5

The method of erecting a vertical wall using individual blocks each of which has a meltable bonding substance on its top, bottom and end surfaces and each of which has a first vertical opening near each end and a second vertical opening centrally of said first vertical opening, each of said first openings having a rod received therein and held in said openings by a meltable substance that is solid at ordinary temperatures, said method comprising the steps of: laying said blocks in end to end relationship with their front and rear surfaces aligned to form a first course of said wall; laying a second course of said blocks on top of said first course with the blocks in said second course in end to end relationship with the joints between the ends staggered from the joints in said first course so that the first opening in the blocks of said second course are in alignment with the second opening in each of the blocks of said first course; laying additional courses of said blocks on top of said first and second courses with the joints staggered between adjacent courses in the same manner as between said first and second courses; and applying sufficient heat to said blocks to melt the substances on the top, bottom and end surfaces of each block to bond the blocks together and also to melt the substances holding the rods in each block to release said rods and allow them to drop into the second opening of each respective block in the course below.

Claim 6

The method of erecting a vertical wall using individual blocks each of which has a meltable bonding substance on its top, bottom and end surfaces and each of which has a first vertical opening near each end and a second vertical opening centrally of said first vertical opening, each of said first openings having a rod received therein and held in said openings by a meltable substance that is solid at ordinary temperatures, said method comprising the steps of: laying said blocks in end to end relationship with their front and rear surfaces aligned to form a first course of said wall; laying a second course of said blocks on top of said first course with the blocks in said second course in end to end relationship with the joints between the ends staggered from the joints in said first course so that the first opening in the blocks of said second course are in alignment with the second opening in each of the blocks of said first course; laying additional courses of said blocks on top of said first and second courses with the joints staggered between adjacent courses in the same manner as between said first and second courses; and applying sufficient heat to said blocks to melt the substances on the top, bottom and end surfaces of each block to bond the blocks together and also to melt the substances holding the rods in each block to release said rods and allow them to drop into the second opening of each respective block in the course below.