US1367786A - Building-stone - Google Patents

Description

J. G. F. LUND.

BUILDING STONE.

APPLICATION FILED DEC-6, l9l8.

Patented Feb. 8, 1921.

awuento'c silica L013 WW Z DWM UNITED STATES rATeNT OFFICE.

BUILDING-STONE.

Application filed December 6, 1918.

To all 10. 20112 '2'! may concern:

Be it known that I, JnNs GABRIEL Fnnonin LUND, civil engineer, citizen of Norway, residing at Bygdo Alle 64:, Uhristiania, lloray, have invented new and useful Improvements in Building-Stone, of which the following is a specification.

T he present invention relates to a hollow block for building purposes of such form that it may be readily cast in a mold and which is adapted for the construction of walls, floors and the like, the object oi the invention being to pr vide a block of this character of isosceles trapezoidal form in cross section and provided at each side of the outer face of one of its bases with similarly formed recesses, whereby when two rows of such blocks are laid in juxtaposition with their longer bases forming the faces of the wall and the shorter bases of the blocks of one row in staggered relation to those of the other row a hollow wall is formed comprising three continuous solid walls separated by air spaces and the individual blocks forming the wall are immovable either longitudinally of such wall or toward each other.

One embodiment of the invention is illustrated in the accompanying drawings, in which- Figure 1 is a partly sectional plan view showing a portion of a wall formed with blocks made according to the present inven tion;

Fig. 2 is a fragmentary front elevation of a similar wall;

Fig. 3 is a sectional view taken on the line 33 of Fig. 1; and

Fig. 4: is a perspective view of one of the blocks.

The same characters of reference designate the same parts in the different figures of the drawings.

Referring to the drawings, 3 designates the longer base of my improved trapezoidal block and 5 the shorter base thereof, while the sides are designated by the numeral 4.

As clearly shown in Fig. l, the short bases 5 are provided in their outer faces with a pair of recesses 8, one at each side thereof, whereby when two rows of blocks are placed with their longer bases forming the exposed faces of the wall and the blocks of one row in staggered relation to those of the other as shown in Fig. 1, there is an intermating relation between the blocks, so that the in- Specification of Letters Patent.

Patented Feb. 8, 1921.

Serial No. 285,508.

dividual blocks cannot be moved lengthwise ot" the wall nor crosswise thereof toward each other. The blocks are preferably formed with their side walls or web portions 4 of less height than the longer base 3, and when it is desired to use a tie rod such as 10, shown in Fig. 2, the short base of each block is also made of less height than the longer base, so that when the blocks are built up in tiers there will be a gap 01' space between the upper edge of the short base of the lower blocks and the lower edge of the short base of the, upper blocks, thereby to provide for the accommodation of the tie rod 10, as shown in Fig. 3, as well as bonding material. The blocks are also preferably provided with grooves 9 in the ends of the short bases, and with wedge-shaped recesses 11 in the upper and lower edges of both bases, as shown clearly in Fig. at, for the purpose of providing space for flushing mortar.

From the foregoing it will be seen that, when a wall is built up of the blocks herein described, said wall comprises three continuous parallel walls which are separated from each other by air spaces, the center wall being made up of the shorter bases of the individual blocks at both sides of the structure, which bases are so interconnected that the side walls of oppositely disposed blocks form a series of obliquely extending walls between the continuous parallel walls, and each of which obliquely extending walls lies in the same vertical and horizontal planes throughout its length; that is to say, the side walls of a block at one side ot'thestructure form continuations of the adjacent side walls of two blocks at the opposite side of the structure, and the oblique walls thereby formed each is in the same vertical and horizontal planes throughout its length. By reason of this construction the solidity of the structure is at least as great as it built of solid blocks, while at the same time having the advantages afforded by the tree circulation of air through the openings formed in the blocks.

Having thus described my invention, what I claim is 1. A hollow building block having a longer base and a shorter base, and a pair of side walls connecting said bases, said shorter base being provided in its outer face with a pair of recesses one in line with each of said side walls, whereby the short bases of assembled blocks will so intcrmate that the side walls of the blocks form continuous walls extending obliquely from the longer base of one block to the longer bases of adjacent blocks oppositely disposed with relation to said first block, each of said oblique Walls being in the same vertical and horizontal planes throughout its length.

2. A building structure formed of a plurality of hollow blocks, each Wall of said structure comprising three continuous parallel Walls separated by air spaces and a plurality of Walls extending obliquely from one of the outer of said parallel Walls to the opposite outer parallel Walls, each of said oblique Walls being in the same Vertical and 15 horizontal planes throughout its length.

In testimony whereof I have signed my name to this specification.

JENS GABRIEL FREDRIK LUND. Witnesses AXEL LAHNV HAROLD LA-HN.

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