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Publication numberUS716865 A
Publication typeGrant
Publication dateDec 30, 1902
Filing dateMay 14, 1902
Priority dateMay 14, 1902
Publication numberUS 716865 A, US 716865A, US-A-716865, US716865 A, US716865A
InventorsHenri Choquet, Albert Despature-Cousin
Original AssigneeHenri Choquet, Albert Despature-Cousin
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Interlocking bricks.
US 716865 A
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Description  (OCR text may contain errors)

No. 6,865, Patented Dec. 30, I902. H. CHBUUET & A. DSPATURE-COUSIN. INTERLOCKING BRICKS. (Application filed m 14, 1902.) v (No Model.) 2 Sheets-Sheet 1.

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SPECIFICATION forming part of Letters Patent No. 716,865, dated December 30, 1902.

Application filed May 14, 1902.

To all whom it inc/y 60721067771.

Be it known that we, HENRI and ALBERT DESPATURE-COUSIN, citizens of the French Republic, and residents of Prem'esques, Nerd, France, have invented certain out the use of mortar, if desired, or otherwise.

strengthening brick walls, so enabling the latter to be'made thinner than usual, and thereby economizing space, labor, and material. In this manner temporary buildings may be quickly established by the use of this improved brick locking arrangement, and both the bricks and the keys for the same can be made beforehand and of the same material, or the keys may be formed of other appropriate solid material. 7 r

In the accompanying drawings, Figures 1, 2, 3, 4, 5, 6, S, 10, 11, and 12 are plan views of different form set bricksincluded in theinvention. Fig. 7 is a plan view of the locking-key, and Figs. 19 and 20 are perspectives thereof. Figs. 13, 14, 15, 17, and 18 are perspectives of difierent forms of bricks. Fig. 21 is a side elevation of a wall constructed in accordance with our invention. 25, 16 and 9 are respectively plans of consecutive courses of various forms of walls embodying the invention.

Although the bricks and their locking means are separate parts, they may be ap propriately referred to as and are hereinafter called keyed bricks in the same manner as one speaks of key-locks.

The brick and its key may be made of any suitable, material to suit any particular re quirements.

The brick, which may vary in shape and dimensions for various purposes, is formed with one or more slots or openings a, provided either at one side or several sides or at portion 1), as illustrated in the annexed draw- Cnooun'r.

Figs. 22 and 23, 24 and.

Serial No. 107,224. (No model.)

ings. The locking device or key for securing the bricks is provided with corresponding heads or flanges c. The web portion d of the key, which joins the two heads, may be varied in width, so as to suit the parts which it serves to lock together or the distance between rows of bricks when hollow double walls are constructed with an air-space be tween the bricks. The two parts-namely, the bricks and the keyswhen properly arranged provide a very strong assemblage which, together with the mortar and after the drying of the latter, forms into a solid block or monolith. It will be easy to realize the progress and superiority of this improved arrangement over existing method of brick construction by considering that this process comprises all the advantages of the ancient methods, in which the cross-joints of the brick walls have always been the chief feature to insure the strength-of building construction.

In addition to the aforementioned advantagesthe invention provides, furthermore,

pools, settling-tanks, reservoirs, wells, the

prooffloors,and generally wheneverbrickscan be employed. It will also be found very useful in the construction'of drying-rooms and ventilation-cham hers by forming the bricks with holes of any convenient section -for example, square, as shown in the accompanying drawingswhich hollow bricks form an additional protection against the cold air. It is, however, to be distinctly understood that the said holes may be omitted without prejudice to this invention and that, moreover, the lockingkeys need not be prepared beforehand, as they may be formed subsequently by running thin mortar or cement into the bricks after being built up.- I The mortar may be strengthened by the introduction of pieces of iron bars or rods, which become fixed in the mortar, and thus constitute a very reliable assemblage.

By using alternately a layer of bricks as shown in Fig. 8 and a layer of bricks of the form shown in' Fig. 1 the vertical cross-joint is obtained. By repeating this arrangement for each two superposed layers the continuity of the cross-joints is carried out, as shown in Fig. 21, which shows an elevation of a wall constructed in this manner, whereby the interlocking keys, Fig. 19, as indicated in dotted lines, always engage in two superposed layers. This is an important feature, which can be carried out without difiiculty by starting the first layer with short keys, like those shown in Fig.20.

Having now fully described our invention,

what we claim, and desire to secure by Letters Patent, is-




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2641921 *Aug 26, 1950Jun 16, 1953Lacy Charles JInterlocking bricks
US2844848 *Nov 3, 1955Jul 29, 1958Couse Mfg IncBuilding construction
US2933920 *Apr 4, 1957Apr 26, 1960Steuler Industriewerke GmbhBuilding blocks
US3292331 *Jan 24, 1964Dec 20, 1966Carl R SamsInterlocking blocks and wall construction
US3430403 *Apr 19, 1966Mar 4, 1969Muse George BWall construction method and apparatus
US4057162 *Dec 5, 1975Nov 8, 1977Siempelkamp Giesserei KgPressure vessel for nuclear reactor
US5901521 *Mar 10, 1997May 11, 1999Guy; John H.Apparatus for dimensionally uniform building construction using interlocking connectors
US6508041 *Oct 25, 2000Jan 21, 2003Daniel Anthony Leonard BootInterlocking concrete block
EP0596377A1 *Oct 26, 1993May 11, 1994Maury, Hans-Dietmar Dr.rer.nat.Vortex finder for a centrifugal separator (cyclone)
International ClassificationE04B2/02, E04B2/18, E04B2/46
Cooperative ClassificationE04B2/18, E04B2002/0252, E04B2002/0265, E04B2/46
European ClassificationE04B2/18, E04B2/46