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Publication numberUS2736188 A
Publication typeGrant
Publication dateFeb 28, 1956
Filing dateJul 3, 1952
Publication numberUS 2736188 A, US 2736188A, US-A-2736188, US2736188 A, US2736188A
InventorsJohn Wilhelm
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Wilhelm
US 2736188 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Feb. 28, 1956 1. WILHELM BUILDING BLOCK Filed July 3. 1952 INVENTOR United States Patent 1A BUILDING BLOCK John Wilhelm, Cambridge, Ohio Application July 3, 1952, Serial No. 296,989

' 1 claim. (ci. 7z-41) This invention relates to a building block and more particularly and specifically to a composite interlocking, ventilated building block from which a wall can be built without the use of mortar or other bonding agent.

An object of the invention is the provision of an interlocking building block which with other similar blocks is self-aligning and so simpliiies the construction of a wall that walls can be built quickly and correctly by amateurs.

Another object of the invention is the provision of an interlocking building block from which a wall can be built without the use of mortar or other bonding agent.

A further object of the invention is the provision of a composite building block composed of a new and improved composition.

A still further object of the invention is to provide a building block which in addition to interlocking with other similar blocks is provided with an insertable and removable locking key.

v `Other objects, advantages and improvements of the block will appear from the following description when read in the light of the accompanying drawings.

In the drawings:

Fig. 1 is a perspective view of the improved block.

Fig. 2 is a view in front elevation.

Fig. 3 is a vertical sectional view on the line 3 3 of Fig. 2 looking in the direction indicated by arrows.

Fig. 4 is a horizontal sectional view on the line 4-4 of Fig. 2 looking in the direction indicated by arrows.

Cil

The present improved block is for use in the construction of walls and the interlocking of the blocks is such that the use of mortar or other bonding means is eliminated. The blocks are cast or molded in a single piece and their lengths and widths are preferably similar to that of currently used cement or cinder blocks so that the present blocks will tit into current methods and manners of construction.

The blocks have comparatively thin wall sections but nevertheless have suticient strength due to the material of which they are composed. The material comprising the blocks will consist of an inert filler which could be one of several inert materials, such as asbestos, and include from ten per cent to fteen per cent phenolformaldehyde resin or a similar bonding or polymerizating resin. The blocks are molded in metal molds under extremely high pressure, two to four tons per inch, and under heated conditions. This composition and process will produce a block that is strong, comparatively light in weight and dirnensionally exact.

A wall or structure composed of these blocks is moisture-proof due to the material of which the blocks are formed and due to the nature of the interlocking engagement of the blocks. The block construction is such, as will later appear, as to provide a ventilated wall. The blocks are so shaped that when incorporated into a wall the outer face of the wall presents a weatherboarding elect.

Each block is substantially rectangular of shape and is hollow. In broad terms the block comprises a front wall ICC designated as an entirety by A and a rear wall designated as an entirety by B which are disposed in spaced and substantially parallel relationship by three transversely extending ribs 1, 2 and 3 the tops 4, 5, and 6 of which stop short of the tops of the front and rear walls and the bottoms 7 of which stop short of the bottom edges of the front and rear walls. This specific construction of rib provides for' horizontal ventilation in the wall, as will later appear, while vertical ventilation is obtained through the spaces between the block ribs.

The front or outer face 8 of the front wall is tapered downwardly and outwardly from its upper end so that this face is disposed on an inclination to the vertical. The front wall in its upper edge is provided throughout its length with a longitudinally extending keyway9 and its bottom edge is provided with a similar keyway V10. Above the keyway 9 and at each side thereof are longitudinally extending shoulders 11 and 12. A `ilang'e 13 extends throughout thelength of the shoulder 12.

Adjacent the keyway 10 and at eachside thereof are shoulders 14 and 15. The front face 8 of the block extends downwardly beyond the shoulder 14 to provide throughout the length of the shoulder a flange 16. A longitudinally extending shoulder 17 extends along the rear side of the shoulder 15 and is disposed inwardly thereof with the result that the shoulder 15 is in reality both a shoulder and a flange.

The rear wall B of the block is provided in its upper end with a keyway 18 and in its lower end with a keyway 19. Shoulders 20 and 21 are at the opposite sides of the keyway 18 and a ilange 22 extends throughout the length of the shoulder 20 at the inner side thereof. Shoulders 23 and 24 areat the opposite sides of the keyway 19. A longitudinally extending shoulder 25, similar to the previously described shoulder 17, is at the inner side of the shoulder 24 to make the shoulder in reality a flange.

The keyways 9 and 10 of the block front wall are joined by vertical keyways 26 and 27. The left-hand end of the front wall is provided with a vertically extending seat or shoulder 28 while the right-hand end of the front wall is provided with a ilange 29.

The rear wall B has its keyways 18 and 19 connected at their ends by vertically extending keyways 30 and 31. At its left-hand end this wall is provided with a seat or shoulder 32 while at its right end there is an outwardly extending flange 33.

The manner in which the blocks interlock in the building of a wall is illustrated in Figs. 3 and 4. It will be seen, Fig. 3, that keys 34 and 3S are disposed in the keyways made by the aligned keyways in the upper and lower ends of the front and rear walls of the blocks when the blocks are arranged in superposed relationship. These keys can be made of Masonite or any other suitable material having sufficient strength and durability. These keys lock the blocks against movement in a horizontal direction but the blocks are further locked against movement in this direction due to the fact that the anges 13 and 22 seat respectively on the shoulders 17 and 25. The combination of these plus the flanges in addition to holding the blocks against movement provides a weather-proof joint which is further weather-proofed due to the fact that the shoulder 11 of the lower block seats on the shoulder 14 in the lower end of the outer face of the upper block. This places the upper end of the outer face of the lower block inward in respect to the outer face of the lower end of the upper block thus producing the weatherboarding effect previously referred to.

The interlocking connection of the adjacent and abutting vertical edges of a pair of blocks in a wall appears in Fig. 4. Here it will be seen that the keys 36 and 37 are disposed in the keyways provided by the aligned key- 3 ways 26 and 27 of the front walls and 30 and 31 of the rear walls of the blocks. The flanges 29 and 33 of one block seat on the shoulders y28 and 32 of the other block. rThe keys together with the ilanges being disposed on the shoulders hold the blocks against movement and provide a weather-proof joint.

Vertical ventilation in the wall is had through the aligned openings 38, 39 and 40 between the block ribs while horizontal ventilation is obtained through the space 41 which exists between each course of blocks due to the fact that the block ribs stop short of the tops and bottoms of the block walls.

By the use of the block a weatherproof wall can be quickly built even by an amateur and speed of erection as well as reduction in cost is obtained by the elimination of theuse of mortar or its equivalent.

The block illustrated and described discloses the basic concept but slight variations in the block construction can be made to provide corner blocks for a wall; blocks to be used between windows or between windows and a door; blocks used at the bottom of a wall opening; blocks to be used at sides and tops of wall openings; and blocks designed to allow the use of either wood or steel door and window frames. in other words slight modification of the block as illustrated and described will permit the use of the blocks to accommodate any condition encountered in building a wall or a house or the like.

Accordingly departures from the precise and specific construction illustrated can be made without departing from the inventive concept and the invention is'accordingly to be limited only by the scope of the hereinafter following claim.

What I claim is:

A building block comprising, a front wall and a rear wall spaced therefrom, spaced ribs interconnecting the walls, a ange extending longitudinally of the inner upper edge of the front wall and a similar flange at the inner upper edge of the rear wall, a wide shoulder adjacent each of said anges extending throughout the lengths thereof, a flange at the lower front edge of the front Wall'and extending throughout the length thereof, a wide shoulder behind said flange and extending throughout the length thereof, a narrow shoulder behind said wide shoulder and extending throughout the length thereof, a narrow shoulder extending throughout the length of the inner lower edge of the rear wall, a wide ange behind said shoulder, a longitudinally extending keyway extending throughout the length of both of the shoulders at the upper edges of the front and rear walls, a keyway extending throughout the length of the wide shoulder at the bottom edge of the front wall and a similar keyway in the wide flange at the lower edge of the rear wall, the opposed ends of the front and rear walls at one end of the block being provided at their inner edges with vertically extending flanges and each having a wide shoulder adjacent its respective ange, the opposite opposed ends of the front and rear walls of the block each being provided at its inner edge with a vertically extending narrow shoulder and each having adjacent said narrow shoulder a wide flange, each of the vertically extending wide shoulders and each of the vertically extending wide ange's being provided with vertically extending keyways, said wall flanges adapted to seat on shoulders of a similarly constructed block in the erection of a wall, said keyways adapted to receive insertable keys extending horizontally and vertically in respect to the blocks of a wall, the parts operating as and for the purpose described.

References Cited in the file of this patent UNITED STATES PATENTS 891,495 Loy June 23, 1908 1,171,191 Gronert et al. Feb. 8, 1916 2,107,691 Corser Feb. 8, 1938 2,433,149 Overacker Dec. 23, 1947 2,539,868 Schultz Jan. 30, 1951

Patent Citations
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US1171191 *Aug 21, 1915Feb 8, 1916William J GronertBuilding-block.
US2107691 *Mar 24, 1936Feb 8, 1938Comalan IncBlock keying system
US2433149 *Aug 29, 1945Dec 23, 1947Overacker Ida ABuilding block
US2539868 *Apr 8, 1947Jan 30, 1951Schultz Fred JInterlocked concrete building block construction
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3437360 *Jun 6, 1966Apr 8, 1969Simpson Timber CoSplined butt joint system for lumber siding
US3877236 *Oct 5, 1973Apr 15, 1975Neill Raymond J OCrib block and structure
US4206577 *Jun 5, 1978Jun 10, 1980Societe Europeene Des Produits RefractoriesRefractory lining element for a furnace or the like
US5191744 *May 16, 1991Mar 9, 1993Bowes Keith DConstruction element
US5230194 *Jun 12, 1991Jul 27, 1993Mcclure William LInterlocking building block
US5802797 *Dec 29, 1995Sep 8, 1998Jannock LimitedDry-stackable masonry unit and methods of manufacture and use
US6122881 *Oct 8, 1998Sep 26, 2000Aubertot; ChristopheLengthwise extrusion of facing bricks to create interlocking profiles
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Classifications
U.S. Classification52/560, D25/58, 52/606, D25/114
International ClassificationE04B2/02, E04C1/00, E04C1/40, E04B2/46, E04B2/42
Cooperative ClassificationE04B2/46, E04B2002/023, E04C1/40, E04B2002/0247
European ClassificationE04C1/40, E04B2/46