US1274455A

US1274455A - Structural block.

Info

Publication number: US1274455A
Application number: US87891314A
Authority: US
Inventors: William H Rook Jr
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-12-24
Filing date: 1914-12-24
Publication date: 1918-08-06
Anticipated expiration: 1935-08-06

Description

W. H. HOOK, JR.

STRUCTURAL BLOCK.

APPLICATION nuzu 020.24. mm

1 ,274,455 Patented Aug. 6, 1918.

w 1 I Q k k 0 L UNITE STATES PATENT orrro.

WILLIAM H. BOOK, JR", 0] AKRON, OHIO, ASSIGNOBTO GEORGE R. BILL, OF AKRON,

OHIO.

STRUCTURAL nnoox.

Specification of Letters Intent.

Application filed December 24, 1914. Serial No. 878,818.

To all whom it may concern:

Be it known that 1, WILLIAM H. R0011, Jr., a citizen of the United States, residing at Akron, in the county of Summit and State of Ohio, have'invented a certain new and useful Improvement in Structural Blocks, of which the following is a full, clear, and exact description.

This invention relates to blocks for structural. purposes, especially for the construction of sewers and other tubular and curved structures, the blocks being manufactured from plastic clay or the like, by means of standard or other approved expressing presses; and the object of the invention is to provide means for insuring the proper distribution of the mortar or other cementitious matter in the end joints of such blocks, so as to effect. secure and watertight joints at these points.

The invention consists of a block having its ends provided with transverse taperin recesses and a mortar-receivingstrip, 0 any suitable material, on which the mortar is placed While the blocks are being laid and are slightly separated and While the strip rests upon the'edgesof the bottoms of the recesses of adjacent blocks, so that when the blocks are forced into proper relation, the strip will ride up the bottoms of the recesses on which it rests and will displace the mortar and properly distribute it within the recesses and between the adjacent edges of the blocks above the strip, to thereby seal the joint. This strip may also serve as a reinforce against radial displacement of the blocks or the parting of the joint, and to that extent obviates the necessity of lapjointing the ends of the blocks, as I will proceed now to explain and finally claim.

In the accompanying drawings illustrating the invention, in the several figures of which like parts are similarly designated, Figure 1 is a perspective view illustrating two blocks and their interposed strip partly assembled. Fig. 2 is a side elevation showing the blocks separated and the strip in place and supplied with a quantity of mortar and ready to be joined. Fig. 3 is a side elevation with the joint formed. Fi 4 is a longitudinal section showin t ree blocks united, and illustrating two onus of the strip, either or both of which may be used. Fig. 5 is a transverse section of two blocks placed side by side. Fig. 6 is a perspective view of the preferred torm of strip. Fig. 7 is a perspective view of the modified form of strip shown at the right-hand side of Fig. 4.

I have shown my invention as applied to a preferred form of hollow or cellular clay sewenblock, of segmental form, with doveta l side joints, but it is to be understood that the invention is not limited to any particular kind or construction of block, so long as its ends may be recessed 'to receive the strip in the manner and for the purpose herein explained.

The block shown has the arcuate outer wall 1 and the similar concentric inner wall 2, and the side -

walls

3 and 4 arranged radially and preferably provided with suitable interlocking means,such as the tongue 5 on one side and the complemental groove 6 on the opposite side, both tongue and groove extending longitudinally and coterminously with the side walls, and adapted to interlock when like blocks are arranged side by side. The side walls are connected transversely by the substantially central web 7, and this web and the outer and inner walls are connected by a substantially central perpendicular partition 8, the said web and partition dividing the block into cells for drainage and reinforcing purposes.

The ends of the block are provided with the transversely arranged recesses 9 extending longitudinally into the side walls and perpendicular partition, and located preferably below the transverse web and between it and the inner wall, or, in other words, to one side of the transverse median plane of the block. -The tops and bottoms of these recesses are inclined and converge toward the interior of the block.

When like blocks are arranged end for end, as in Fig. 2, and before they are intimately abutted against one another, a mortar receiving and distributing strip, of any.

form and material, is laid upon the bottoms of the recesses in adjacent blocks, and

then mortar or other joint sealing material proach one another, the strip rides up thebottoms of the recesses and into the recesses, and the mortar is thus distributed in the reeesses and-forced by the movement of the shown at the right-hand side'of Fig. 4 and in Fig. 7, may be used; or both forms of strips may be used in the same structure.

In constructing a sewer of the hollow blocks, such as herein shown and described, the invert blocks are first alined end for end and the strips are placed 'in the end recesses and the mortar applied, and when the blocks are forced together the mortar will be distributed in the recesses against the median plane, or inner wall, and between the joint as above described, and some of the mortar will be forced into the hollows of the blocks upon opposite sides of the'central partitions 8 and under the inner walls 2 of the blocks .and thus form an additional mortar'lock between the blocks against radial displacement; and when-constructing the arch, so also a quantity of mortar will be distributed into the hollows of the blocks upon opposite sides of the central partitions 8 and under the central webs 7 and thus form an additional mortar lock against radial displacement of the arch blocks.

It will be understood that when the invert blocks are being laid, the strips are so placed as to force the mortar upwardly toward the center of the sewer, and when the arch blocks are being laid, the strips are so placed as to force the mortar upwardly .toward the outside'of the sewer. The outside of the invert blocks will thus be left open at the joints and sealed on their inner or flow-line side and these open joints aid distribution of the seepage-water. The arch blocks, on the contrary, are left open at their joints on the inside of the sewer and are sealed on the outside. The joints may be narrates pointed up from the inside of the sewer vmortar-distributing device in the manner herein explained.

What I claim is 1. A structural block, having an outer wall, an inner wall, and connectin walls, the ends of the block provide with transverse recesses extendin inwardly in the direction of the length 0 the block and arranged below a median plane, the tops and bottoms of said recesses being inclined, and a mortar-receiving strip arranged in the recesses in the adjacent ends of alined blocks and adapted to be moved radially by coaction with the inclines of said recesses to distribute the mortar between the ends of side the blocks as the blocks are moved toward and the transverse web and located between the side walls, the ends of the block provided with recesses in the side walls and perpendicular partitionand located adjacent to the transverse web, the tops and bottoms of said recesses being inclined for the purpose specified, and a trough-like strip for use in the said recesses in the ends of adjacent blocks to receive and distribute the joint-sealing mortar. Y

In testimony whereof I have hereunto set my hand this fifteenth day of December,

- WILLIAM H. BOOK, Jr. Witnesses:

WILLIAM WALLAGE, MARSHALL OAINE.