US1041401A - Hollow brick. - Google Patents

Description

P. 0. ANDERSSON. HOLLOW BRICK. APPLICATION FILED SEPT. 9,1911.

1,041,401 Patented Oct. 15, 1913,

5% 44. L tll D Q) i jgifi. Y

BEANS OSKAR ANDERSSON, 0F STOCKHOLM, SWEDEN.

roar oi.

, Specification of Letters Patent;

HOLLOW BRICK.

Patented Uct.15,1912.

Application filed September 9; 1911. Serial No. 648,524. I

To all whom it may concern:

Be it known that I, FRANs OSKAR AnDERsso), a subject of th King of Sweden, and residing at -Stockho m, Sweden, have invented certain new and useful Improvements in Hollow Bricks, of which the following is a specification. Y

In-order to prei ent the cold air, coming fromthe outside of a wall,-from blendingtoo rapidly with the warnrair, coming from the inside, whereby damp or moisture is'caused, double air-chambers are necessary in the wall, so as to create two layers of air, iconipletely separated from each other. In order to effect this, hollow bricks are used, which consist of three walls, united with each other at their ends by means ofwebs in such a manner that every brickis provided with two holes or cavities.

the joints are not isolated thereby.

' which complement or receive the formation- 11 of an adjacent brick when'the bricks are.

allel walls 4, arranged at a distance fromeach other, and these walls are connected with each other by means of webs 5 and 6 respectively insuch a manner that every brick is provided with two holes or cavities 3. The webs 5 and 6 are formed concaveconcave in cross section and disposed in such a manner that'in front of eachhole or cavity 3, the bricks are provided with a notch or recess 1, and one margin of each wall 4 with a convex projection -11. The opposite margin of the walls 4 from the convex formation 11 are formed concavely as at 2 being laid for building a wall. When laying the bricks, there are therefore formed between two bricks channels ,7, of which those nearest the outer wall together with holes 3 'nearest to them form an outer chamber,

while the inner chamber 7 and the inner holes '3 form another chamber, completely;

In this .way complete .isolation can,however, not.be effected, as

separated from the former, if the bricks are I bonded. I

I In order to facilitate the bricklaying work,

.the bricks are on their upper and, lower sur- .unaccustomed to bricklaying work, the bricks are dipped in soft mortainon three sides, after'which they are laid in place, which is apparent in Fig. 1. After a layer has been put down in this manner, the next layer is bonded with the previous one in such a manner that the channels? between two bricks are connected with'the holes 3 in the layers lymg underneath, whereby, as will be seenfrom Fig. 1, a chamber isobtained in which the air can circulate, and which is only interrupted by the webs 5 and 6 respectively. 10

indicates the mortar between the bricks. In this way complete isolation of the air is elfected, as even the bonds are isolated in sucha manner that every part of a wall is surrounded by air on all sides. Bricks in conformity with the present invention may also be used for 'theerection of pillars and reinforcing heels in walls, in which case the bricks are bonded two and two, after which the holes or cavities are filled up with concrete or similar material and reinforced with iron, if such should be necessary, through which method of procedure an extremely cheap and perfectly safe structure is obtained. In this way the tedious and expensive molding is obviated.

The bricks may'be made of concrete, sand or any other suitable material. Finally, it ought to be noted that bricks may, of course, also be manufactured withgmore than two' holes or cavities, in which case the webs have to be provided with a corresponding number of notches or frames, so as to get as large a number of layers of. air as there are holes or cavities in the bricks.

Having now particularly described the nature of my said invention and in'what manner the same is to be performed I declare that what I claim is:

A wall structure comprising in combination, a plurality of bonded elements each comprising in combination, a plurality of parallel walls (4),each wall having opposite vertical margins formed convexly and conelongated cavities (3) cavely 11 and 2 respectively, and a plurallty of Webs (5) concavo-concave in cross sectlon separating said walls and disposed adjacent the said concave and convex mar gins, parallel thereto and in spaced apart relation to each other, to provide an elongated cavity (3) between elements being disposed in staggered superposed relation to each other with'the said intercommunicating with each other, and alin'ed cylindrical the Walls, said bonded cavities (7) each alternate row of elements formed by the margins of said concavo concave Webs, substantially as and for the purpose set forth. I t

In testimony whereof I afiix my signature in presence of two Witnesses.

. FRANS OSKAB .ANDERSSON.

I Witnesses:

J orrAN MARK AN; 'I'IILDEN TEMLING.

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