US2775807A - Apparatus for building walls - Google Patents

Description

Jan. 1, 1957 R. c. GROVER ET AL 2,775,807

APPARATUS FOR BUILDING WALLS File d May 20, 1952 2 Sheets-Sheet 2 INVEN TORS.

Qussel/ C Grover and BY Frank Sl/VQ Mir/w F) TTOENEY United States Patent APPARATUS FOR BUILDING WALLS Russell C. Grover, New Albany, Ind., and Frank W. Silva, Louisville, Ky.

Application May 20, 1952, Serial No. 288,904

11 Claims. (Cl. 25-131) This invention relates to an apparatus for site casting monolith walls of concrete and the like, and relates in particular to a form which may be employed to cast concrete in superposed courses.

It is an object of the invention to provide a moldor form for casting walls including a simple supporting apparatus to allow the form to be raised for casting superposed courses.

A further object is the provision of a form for casting walls which forms a wall in simulation of clapboard with overlap joint.

A further object is the provision or" a form for casting walls which does not require skilled workmen for its assembly and operation.

These and other objects will be apparent upon consideration of this specification taken in connection withthe accompanying drawings forming a part hereof, illustrating a preferred embodiment by way of example, and wherein: Figure 1 is an elevational fragmentary view showing the invention applied to a partly constructed building;

Figure 2 is a sectional view similar to Figure 1; Figure 3 is a plan View showing the corner construction;

constructing a building;

Figure 5 is a side elevation of a dam; Figure 6 is a side elevation of an inside corner filler; and

Figure 7 is a sectional view illustrating a modified wall structure.

Referring to the drawing, Figure 1, in constructing a building the footing 1 is cast preferably with ;a vertical rod 2 embedded therein, at each corner, and at intervals as. desired between corners; and long threaded rods or posts 3a, 3b, 3c,-and 3d (Fig, 4-) are suitably coupled thereto in vertical position by sleeves 4 or the like. Each threaded rod receives a jack nut 5 which comprises a sleeve 5a having a flange 5b and a screw threaded nut 5c"welded together. The sleeve of a jack nut passes through the opening 8 in a gusset plate 9 so that the- Figure 4 is a plan view showing the invention used in gusset plate is suspended or supported by the flange 5b and the nut can be turned by a suitable tool to raise or. lower the gussetplate along the post or rod. Opening 8 is sufliciently larger than sleeve 5a so as to allow for misalignment of centers of the opening and rod. As the gussetplates are all alike, only one will be described in detail, Along the two front edges of each gusset plate,

The ends of the inside form plateare skewed as indicated" at 19 and at each corner, the end 19 of one form plate fastened to the gusset plate is spaced from the end 21 of the adjacent form plate fastened to the same gusset plate as shown in Figure 3. The outside form plate 22 is of general Z-shape with an outturned top flange 23 and an inturned bottom flange 24 joined by a fillet to plate 22. At each end the top flange has a pair of apertured bosses 25 which receive between them the boss 11 depending from the gusset plate, and a pin 26 passing horizontally through, holds the outer plates suspended from the gusset plate. This pin preferably is so located as to be exterior the center of gravity of the outside form plate. The adjacent outside form plate 27 is similarly secured to the gusset plate so that one end 28 extends beyond the end 29 of the adjacent plate. The end 29 has an apertured lug 31 extending therefrom flush with its edge and a hole in the adjacent outer plate 27 registers therewith to receive a bolt 32 to secure the outer plates together at the corners. This prevents the outer form plates from swiveling outwardly when concrete is poured between the form plates. It will be observed that one edge 29 of an outside form plate, which is overlapped by the next adjacent outside form plate, is skewed to meet the sloping inside wall of the overlapping form plate, so as to form a taper-ed corner angle. The inner form plates are constrained by means of a corner piece 33 inserted between the ends of adjacent form plates.

The corner comprises a fillet portion 33a joined by a straight part a wider at the top than at the bottom, thus providing a socket having skewed or taper- ed edges 34 and 35. These skewed edges are equal in width to the top flange of the inside form plate and have retaining flanges 36 and 37. The gusset plate has an opening 38 through which the fillet pieces can be inserted or removed, the sloping edges 34, 35 of these pieces cooperating with the skewed edges 19, 21 of the form plates enable the corner fillet pieces to be removed easily. When these fillet pieces are removed the inside form plates are clear of the end walls.

. The form plates may have dams therein to allow openings for doors, windows or the like. Each dam comprises a plate 39 having a top flange 41 integral therewith and a tapered lug 40 may be located on one face. The dam is secured at the top by bolting the top flange 41 to the inside and outside form plates. The bottoms of the form plates are held apart by a plank or other suitable bar between the tapered lugs 40, as to prevent poured concrete from flowing into the area between dams. The bottoms overlap and engage the previously poured course. These dams may be readily inserted at the place required, for doors, windows, or other openings and may be readily removed. The dam may have a core 42 to form a groove on the edge of the opening. Grooves 43 for electrical conduits or the like may be provided by a core 44 fastened to an inside form plate. If it is desired to provide an embedded vertical conduit hole through the concrete wall the core may be in the form of a lightweight sheet metal tube having the vertical edges overlapped so the tube can be collapsed. This tube may extend through a hole in an extension or bracket on one of the form plates,'and is retained in position by a flange thereon. When the form plate is to be raised 3a, 3b, 3c, and 3d are secured to the embedded rods;

g: corner pieces 33 are inserted through the holes 38 in the the core may be collapsed in any suitable manner and then is raised with the form plate.

In using the apparatus, after the footing is poured with the rods 2 embedded therein, the couplings 4 and posts and the gusset plates 9 placed in position thereon. Rods 3b, 311, etc. are of such length that they are continuous and extend slightly beyond the top of the wall. The inside form plates 15 are bolted to the gusset plates and the gusset plates. The outer form plates 22 then are fastened to the gusset plates by the lugs 11, 25 and pins 26 and adjacent outer form plates are fastened together at the corners by the bolts 32. Dams 39 are positioned at the location of doors, Windows, or other openings; concrete then is poured between the forms to form thecourse 46.

When the concrete has set sufilciently the corner pieces 33 are lifted out through openings 38, the bolts holding the dams in place are removed, and bolts 32 are removed to allow the outer form plates to be pivoted outward to clear the inturned flanges 24 from the concrete. By locating the pivot point 26 slightly beyond the edge of flange 24, or beyond the center of gravity of the form plate the outer form plate can be swung outwardly and theflanges 24 will not'break away the lower edge of the course. The jack nuts now are turned to raise the gusset plates and form plates totthenext elevation at which point theinside form plate slightly overlays the last poured mass or slab of concrete and the bottom flange 24 of the outside form .plate lies below the top of the last pouredmass46. The bolts 32 and corner pieces 33 are reinserted and the form is ready to receive concrete again. This arrangement enables thepouring'of concrete inihorizontal courses with the face of the Iconcretecourses inclined to simulate clapboard; and the rounded edges formed by the fillet joining 'flange 24 to plate 22, reduces the liability of chipping or breaking off this protruding portion of the course. When concrete ispou-red the new concrete forms an overlapped joint with the previously poured concrete, as shown by the broken lines in Figure 2. This produces a water tight joint, and conceals the juncture of the two courses of concrete. The provision of fillets ontheinside wall by the-curved form 33 strengthens the corner and reduces any tendency of the wall tocrack at the corners. As fast as one course sets the forms can be raised in position merely by turning the jack nuts, to allow pouring the next course. The rods 31:, 3b, 3c, and 3d remain embedded in the concrete and serve as reenforcement rods, and as these rods extend above the top of the wall, they may be employed for attaching the roof plates to the wall. Other vertical or horizontal reinforcing rods may be located in the wall as desired. Where interior walls are to be cast, forms for this purpose can be secured to the inner wall forms by suitable gusset plates. It will be noted that dams or cores can be removed or inserted as desired to provide for openings or channels in thewalls.

If desired, sheets of insulation can be inserted between the inside and outside form plates so that when the concrete is poured the insulation sheets will be embedded and anchored in the wall. This construction is shown in Figure 7, where sheets or planks 47 of insulation material are-inserted between the outside form plate 22 and the inside form plate 15. These sheets are held in position by suitable wire staples or nails 48 forced in at an angle to hold the sheet to the embedded course. The two'portions of the wall thus are separated by the insulation layer, and suitable reenforcing rods 49 passing through the insulat-i'on layer are embedded in the concrete to tie together the two wall portions and hold the insulation layer in place. The wall may also include vertical recnforcing rods 51 arranged as desired in the wall, and horizontal rods 49 may be tied thereto. The insulation layer may be any desired thickness.

We claim as our invention:

1. An apparatus for molding corner-forming concrete walls in tiers within a predetermined wallspace extending upwardly from a base ('1), comprising: a rod (3a, 3b, etc.) positioned within said wall space adjacent a corner to extend vertically-through successive molding zones with its lower cndanchored (2, 4) firmly to said base; elevatmg means (5, 8) mounted on said rod .for adjustment vertically along said rod to succesiv-e operative positions for successive tier molding zones, said elevating means, in each position, extending over said corner wall space and presenting outer and inner ends adjacent 'the outer and inner sides of said corner; an outside corner-forming (22, 27.) and an inside wall-forming (15, 15.) pair of horizontally extending form plates, each pair being adapted to occupy a series of successively higher molding positions for that corner, the adjacent end portions of the outside pair (22, 27) meeting each other (see 29) at the outside corner in said molding positions; the inside pair (15, 15) presenting, in said molding positions, end portions which are relatively adjacent to each other (see 19, 21) at said inside corner; connecting means, adjacent said corner, connecting said outside pair (see 11, 12 and 25) to the outer end, and said inside pair (see 13, 14 and 18) to the inner end, of said elevating means, each plate of said outside pair being movable, relatively to said elevating means, outwardly from its molding position to a transportation position wherein it is vertically movable, bodily with said elevating means, from one molding Zone to another; and holding means (31, 32) for releasably maintaining said outside pair in their molding positions.

2. The apparatus of claim 1 wherein: said rod is threaded; and said elevating means includes a rotatable carrier (5) threaded to said rod and a non-rotatable plate (8) mounted on said carrier to extend over said corner wall space to present said outer and inner ends.

3. The apparatus of claim 1 wherein: the inner molding face, of at least one plate of said outside pair, slopes outwardly as it proceeds downwardly in its tier molding position and then turns inwardly for clapboard simulation purposes; and the end portion of one of said plates of said outside pair overlappingly engages the end edge of the other plate of the same pair.

4. The apparatus of claim 3 wherein: the inner molding faces of both plates of said outside pair slope outwardly in the downward direction and then turn inwardly.

5. The apparatus of'claim 3 wherein: said inward turn is below the bottom joint line of the tier being molded to cause such tier to overlap the upper margin of the outside face of the structure immediately beneath that net.

6. The apparatus of claim 3 wherein: the overlapping plate of said outside pair slopes outwardly as it proceeds downwardly; and the end edge of the other plate of said outside pair is slanted to conform to the slope of the overlapping plate.

7. The apparatus of claim 1 wherein: said adjacent end portions of said inside pair 15, 15 are spaced (see 19, 21) from each other in said molding positions; the end face, of at least one plate of said inside pair, slopes inwardly in the general direction of the inside corner as it proceeds downwardly and cooperates with the end face of the other plate of the same inside pair to provide a downwardly tapered socket in the crook of the inside corner between end faces; a downwardly tapered socket member is insertible into said socket to a molding position in which it provides an inner molding face extending along the inside corner wall space between the end faces of said inside pair; and interengaging means areprovided between said inside pair of plates and said tapered socket member to retain said socket member in its molding position within said socket.

8. The apparatus of claim 7 wherein: at said inside corner, both of the adjacent end faces of said inside pair slope inwardly.

9. The apparatus of claim 7 wherein: at said inside corner, both of the adjacent ends of said inside pair coop crate to provide a downwardly tapered slot on an outer side of said socket.

10. The apparatus of claim 9 wherein: the interengaging means provided by said socket extends through said downwardly tapered slot.

11. In an apparatus for molding corner-forming concretewalls in tiers within a predetermined wall space, an improved inside corner-molding arrangement comprising: an inside wall-forming pair of form plates, one for each of a pair of corner-forming walls, each plate extending, in its molding position, horizontally along and vertically across a tier molding space of its wall, said plates having spaced vertically extending end faces adjacent said inside corner with at least one end face sloping inwardly in the general direction of the inside corner as it proceeds downwardly and cooperating with the adjacent end face to provide a downwardly tapered socket in the crook of said inside corner between said end faces; a downwardly tapered socket member inserti'ole into said socket to a molding position in which it provides an inner molding face extending along the inside corner wall space between the end faces of said inside pair; and interengaging means between said inside pair and said tapered socket member to retain said socket member in its molding position within said socket.

References Cited in the file of this patent UNITED STATES PATENTS 6 Chidester Aug. 15, 1905 Morris July 9, 1907 Weber Nov. 29, 1910 Keenan June 15, 1915 Jackson Dec. 14, 1915 Troolin Sept. 6, 1921 Aarsrud Sept. 30, 1924 Fels Nov. 3, 1925 Showers Nov. 19, 1929 Sproul Feb. 24, 1931 McKee June 16, 1931 Kleitz Mar. 20, 1934 Hallisy Mar. 14, 1939 Hawes Mar. 5, 1946 Slater Sept. 21, 1948 Robinson Dec. 13, 1949 FOREIGN PATENTS Great Britain "Mar. 1, 1922 Great Britain May 18, 1925 Great Britain May 18, 1925 Germany Oct. 10, 1927

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