US2715829A - Building unit of spaced concrete walls - Google Patents

Description

Aug. 23, 1955 G. K. E. KLEEBERG 2,715,829

BUILDING UNIT OF SPACED CONCRETE WALLS Filed Sept. 23, 1948 2 Sheets-Sheet l INVENToR. GU/VTHER A. E. KLEfE/q E BY,

ATTORNEYS ug- 23, 1955 G. K. E. KLEEBERG BUILDING UNIT OF' SPACED CONCRETE WALLS 2 Sheets-Sheet 2 Filed Sept. 23, 1948 INVENTOR. GUN THER KE /QEEBERG BY A from/EPS United States Patent O BUILDING UNIT OF SPACED CONCRETE WALLS Gunther K. E. Kleeberg, Belfast, Maine Application September 23, 1948, Serial No. 50,840

1 Claim. (Cl. 72-44) My present invention relates to building units and particularly to concrete forms which enable the load carrying wall to be poured, constitute the inner and outer surfaces of that wall, and provide means for suitably reinforcing it.

In accordance with my invention, l provide such a building unit consisting of a pair of Walls with each wall having a plurality of members embedded therein and protruding from the face of that wall that is disposed towards the other wall of that um't. Those members are disposed in predetermined relation to the members of the other wall when the walls are positioned for assembly and I provide means to interconnect corresponding members of the walls to assemble the unit with its walls spaced apart a predetermined distance.

The members are preferably U-shaped and are disposed in the walls so that they constitute reinforcement for them as Well as for the load supporting concrete slab contained between them in the finished wall, of which the building units become a permanent part.

Preferably, I provide the outer surface of at least one wall of each building unit in accordance with my invention with recesses which define with a vertically alignedlike recess of another unit a double tapered channel to receive a wedge that serves both as means for positively aligning the units and as means enabling laths, for example, to be nailed in place.

In the illustrative embodiments of my invention shown in the drawings, these and other of its novel features and advantages will be readily apparent.

In the drawings:

Fig. l shows, in elevation, units in accordance with my invention.

Fig. 2 is a section, on an enlarged scale, along the lines 2 2 of Fig. l.

Fig. 3 is a partly sectioned plan view of one of my units.

Fig. 4 is a perspective View of one type of connector.

Fig. 5 is a similar view of a connector of another type.

Fig. 6 is a view, in perspective, of one of the walls of the unit.

Fig. 7 is a view, in perspective, showing a form element attached to the members.

Fig. 8 is a vertical section, though a form made from units established by uniting walls such as that shown in Fig. 7, and

Fig. 9 is a View, in perspective, of another embodiment of my invention in which the units are connected by aligning and nail-receiving wedges.

In the embodiment of my invention shown in the drawings, I provide building units consisting of a pair of concrete walls 10. Each wall has a plurality of generally indicated members 11 embedded therein and protruding from the face thereof that is to be disposed towards the other wall of that unit. The members 11 are located so that when the walls 10 are positioned for assembly, corresponding members 11 may be interconnected by links,

2,715,829 Patented Aug. 23, 1955 ICC generally indicated at 12 in Figs. 2, 3, 4, 8, and 9, and at 12a in Fig. 5, which are dirnensioned so that in the assembled unit, the walls 10 are spaced the desired distance apart.

In practice, the inner face of each Wall 10 has a plurality of ridges 13 extending, preferably, from top to bottom thereof and spaced from each other and the ends of the wall to establish channels 14 or parts thereof. The thus formed inner surface of each wall is of advantage whether the walls 10 are to establish the retaining form of Figs. 1-3 in which case they become anchored by the poured concrete 15 or are to back form elements 16 for the poured concrete 17 to provide the completed wall with dead air spaces or passages for Wiring or piping as suggested in Figs. 7 and 8.

The members 11 are established by the ends of U- shaped metal reinforcements 18 and 19 which are incorporated in the walls 10 with their ends preferably terminating in hooks 20 with the hooks of the reinforcement 18 being disposed towards the hooks of the reinforcements 19. While the reinforcements 18 and 19 may be similar, I prefer that the reinforcements 19 have their intermediate portions 21 of lesser length and U-shaped with their extremities 22 offset so that each of them is exposed between an adjacent pair of ribs 13 and is disposed slightly beyond the edge of its Wall that is adjacent thereto. Thus each unit has retaining and locating means to enter between the Walls of a unit in engagement therewith which avoid the weaknesses inherent in conventional tongue and groove interlocks. In practice, the reinforcements 18 and 19 are dimensioned and located so that their ends, which establish the members 11, protrude through the ridges 13 and, preferably, each member 11 is located in a different ridge.

While the members 11 may be interconnected in various ways, the connector links detailed in Figs. 4 and 5 have proved to be satisfactory in use,

The connector link 12 shown in Fig. 4 consists of a metal strip 23 having a flange 24 and tabs 25 providing member engaging ends 26 that are L-shaped in cross section. The tabs 25 are disposed to encircle the hooks 20 with their ends 27 anchored, as by welding, to the strip 23.

The connector link 12 shown in Fig. 5 is of particular advantage where the units are to be assembled on the job by the contractor. The link 12 of Fig. 5 consists of a strip 28 of metal channel having a hook receiving aperture 29 spaced from each of its ends so that it is only necessary, in completing a unit, to put the connectors in place and then crimp their extremities 30 into locking engagement with the members 11.

As the width of one of my units is dependent on the length of the links 12, I am able to satisfy a wide range of demands with a single size of wall 10 and these are adapted to eicient production with accurate dimensions and suitably smooth outer surfaces and edges being readily maintained.

With such units, a suitable form may be quickly and accurately established to enable the concrete to be poured. The resulting slab 15 supports the load, but the units become an integral part thereof and their interconnected members 11 lend themselves to its reinforcement.

As suggested in Figs. 7 and 8, I may employ the members 11 to support the form elements 16 which are preferably of wallboard or like stock having heat insulating properties. While the form elements 16 may be made to be inserted after the units have been assembled, I have shown them as having slots 31 dimensioned and located to receive the members 11 of the reinforcement 19 and one of the members 11 of the reinforcement 18 with one end of the form element 16 disposed on one of the ridges 13 and with its other end protruding to be disposed on the corresponding ridge 13 of another unit. In practice, I prefer that the form elements 16 be dimensioned so that one of the edges of each of them protrudes beyond one edge of the wall 10 by which it is supported to overlap a marginal portion of another form element as suggested in Figs. 7 and 8. When the completed units are assembled to establish a form, the elements 16 are seated against the ridges 13 with adjacent ends abutting thereon and with one edge overlapping that of another unit. When the concrete wall 17 is poured, the channels 14 are available as dead air spaces or to provide passages for pipes or wires.

In the embodiment of my invention shown in Fig. 9, I have shown one exposed face of the units as having a pair of double tapered recesses 33 extending from one edge of each unit to the opposite edge thereof. One extremity 34 of each recess is dimensioned as a continuation of the other extremity 35 thereof so that when the units are assembled, a Wedge 36 may be driven into place to interconnect adjacent units and to align them accurately. As the wedges 36 are preferably wooden, they also constitute means to enable laths, for example, to be securely nailed to the completed wall.

While my units are particularly adapted for use in erecting forms in which case they are united by the mortar, they may be used as blocks and, if desired or necessary, strips of saturated felt, paper or the like may be placed between abutting edges of adjacent units.

It will thus be apparent that units in accordance with my invention are adapted both to efficient and economical production and to meet a wide range of requirements Y in the construction of concrete walls.

What I therefore claim and desire to secure by Letters Patent is:

A building unit comprising a pair of concrete walls whose proximate faces have vertically disposed ribs and channels, members anchored in each of said walls with their ends protruding through the ribs in the face thereof that is to be disposed towards the other wall and located so that corresponding ends are in predetermined relation to each other when the walls are positioned for assembly, means interconnecting corresponding ends to establish said unit, at least one of said members of each wall being U-shaped and having a substantial part of its intermediate portion anchored therein, said intermediate portion being U-shaped and approximately the width of a wall channel and having its extremity oifset to protrude from said face in a channel and extending slightly above the adjacent wall edge thereby to provide said unit with positioning and locating means engageable with the inner surface of a unit in engagement therewith.

References Cited in the file of this patent UNITED STATES PATENTS 250,572 Petri Dec. 6, 1881 799,784 Fisher Sept. 19, 1905 838,844 Clayton Dec. 18, 1906 903,734 VLarsen Nov. 10, 1908 932,261 Flynn Aug. 24, 1909 962,463 Phillips June 28, 1910 1,196,062 Wolcott Aug. 29, 1916 1,295,919 Muhlhausen Mar. 4, 1919 1,759,070 Tengstedt May 20, '1930 1,833,875 Lockwood Nov. 24, 1931 1,911,626 Larzelere May 30, 1933 1,949,079 Loeier Feb. 27, 1934 2,248,348 Hall July 8, 1941 2,268,044 Liebowitz Dec. 30, 1941 2,315,418 Haaker Mar. 30, 1943 2,539,219 Abdelnour Jan. 23, 1951 FOREIGN PATENTS 415,941 France of 1910 6,027 Great Britain of'1912 23,296 Norway of 1913 688,972

France of 1930

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