US1621957A - Building block - Google Patents

Description

Mwrch 22, 1927.

W. H. SCHWEIZER BUILDING BLOCK Filed April 5, 1926 Patented Mar. 22, 1927.

UNITED STATES WILLIAM H. SCEWEIZER, OF BALTIMORE, MARYLAND.

, BUILDING :BLoox.

Application filed April 3, 1826. Serial'No. 98,698.

This invention is a novel improvement in molded building blocks and the like, and the principal object thereof is to provide an integral moisture-proof building block, molded or otherwise formed of concrete, cinders, or other plastic material, said block having three parallel walls, connected by integral webs at their ends andcentral portions, the middle wall being provided with an insert or layer of material impervious to moisture, the impervious layer extending beyond the normal contour of the block at the top and one end face thereof, the opposite faces of the block being provided with longitudinallydisposed grooves to receive the adjacent projecting portions of the impervious layer on the adjacent blocks, when placed together to form a wall or the like, whereby moisture or dampness will be prevented from passing through the blocks from the outer to the inner surfaces thereof, or along the mortar joints between. the blocks, when assembled to form a wall or the like.

Other minor objects of the invention will be hereinafter set forth.

I will explain the invention with reference to the accompanying drawing which illustrates one practical embodiment thereof to enable others to adopt and use the same, and will summarize in the claims the novel features of construction for which protection is desired.

In said drawing:

Fig. 1 is a perspective view of a complete molded block, detached.

Fig. 2 is a top plan view of a section of a wall constructed with my blocks.

Fig. 3 is an end elevation of a section of the wall shown in Fig. 2'.

As shown in the drawings, each unit'of the wall or the like, preferably comprises a substantially rectangular integral block made of concrete, cinders, or the like, in the usual manner, said block having four rectangular openings A extending therethrough, adjacent the four respective corners of the block, whereby the block is divided into three parallel longitudinally disposed wall portions, B, C, D, connected together at their ends by webs E; and also connected'together at the transverse center of the block by webs F. The middle wall portion G has formed therein, during the process of molding the block, an insert or G G the projecting portions layer of material G which is impervious to water or moisture, which material G may be slag, moisture-proof cement, slate or any other similarly impervious material, layer G, as above stated, being formed in the middle wall portion C, during the process of molding the block, in any desired manner.

The layer G preferably extends slightly above the upper face of the block as at G, and also beyond one end face thereof, as at G The bottom face of the middle wall portion G of the block in way of thelayer G is longitudinally grooved as at C to receive the projectin portion G of the block immediately be ow when the blocks are assembled in a wall or the like, as shown in Figs. 2 and 3. Similarly, the end face of the wall member C of the block opposite portion G is provided with a vertically disposed groove 0 in wall portion C, to receive the projecting portion G of the adjacent block when the blocks are assembled to form a wall or the like.

The projecting portions G G are each provided with a series or row of holes or indentations G in their outer faces for the purpose hereinafter described.

1 In assembling the blocks in a wall orthe like, mortar M is spread in the usual manner over the top and end faces of the blocks on opposite, sides of the projectingr portions one block entering into the recesses or iongitudinal rooves C C in the adjacent blocks. if any mortar, however, should ing portions G G are inserted therein, such mortar will enter the holes or indentations G in the outer faces of the projecting portions G G and allow the blocks to properly seat in order that'the bearing on each block will be over'its entire surface or area, the bearing being equally distributed over the entire surface or area of the block. The projecting portions G G of the layer G, divide the mortar M, which is, of course, not impervious to moisture, between adjacent faces of the blocks so that no moisture can penetrate along the mortar line past the la er G, from the exterior to the interior wa l of the block. V

Moreover, the extending portions G G, of the layer G, when inserted in the grooves C C insure that he blocks'will be erected enter the grooves C C when the projectin perfect alignment, the portions G, G- preventing one block from sliding laterally /of the other blocks. v

'I do not limit my invention to the exact 5 form shown in the drawings for obviously changes may be made therein within the scope of the/claim.

I claim In a building block, an integral layer 10 of material impervious to moisture and projecting beygnd two faces thereof, the o poslte faces ing correspondingly roove to receive the-projecting portions 0 the adjacents blocks when assembled in a wall or the like each projecting portion of the layer being provided with series of holes in its outer end, for the purpose specified.-

In testimony that I claim the foregoing as my own, I aflix my si ature.

WILLIAM H. SCHWEIZER.

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