US2312983A - Concrete wall form - Google Patents

Description

March 2, 1943. SUMMERS 2,312,983

CONCRETE WALL FORM Filed March 24, 1941 2 Sheets-Sheet 1 I III. Q

INVENTOR V I z gs'a z ATTORNEYS March 2,1943. .suMMERs 2,312,983

' CONCRETE WALL FORM FiledMarch 24, 1941 2 Sheets-Sheet 2 35 K FJ' JZ 1 ENTOR I Patented Mar. 2, 1943 UNITED STATES PATENT OFFICE CONCRETE WALL FORM omar summer's, seams, Wash. Application March 24, 1941, Serial No. 384,833 3 Claims. (01. 25-131) This invention relates to improvements in concrete form construction for use in preparing for the casting of concrete in forms and for use during the casting and setting operation to hold the concrete in place. I II I I The customary practice in making concrete forms for walls, for example, has beentoferect vertical stud members of wood in spaced apart rows and to sheath them on their adjacent faces with horizontal boards nailed thereto to complete the form. These forms are seldom true or accurate due to the warp of the Wood of which they are constructedand also 'due to the fact that the basic element, the stud,- is seldom jab} solutely straight. In addition these materials used in the forms are seldom capable of I reuse because of the warp that they take following their exposure to great quantitieso'fliquid in the concrete cast in the forms anddue to the damage they suffer from being dismantled when they are removed from the cast con'crete. I

It has been an important object of rmyjinven tion to providean improved studdin'g structure for use in the production of forms for cast concretework. I I

Another object of my invention has 'been t o provide an improved stud structure for concrete forms which may be used in multiples and tied together for proper alignment of the formjwa'lls.

A further object of the invention lies in 'the provision of a metal studding cooperable with the standardtypes of sheathing employed in lining concrete forms. I

Other objects and advantages of the invention will be apparent during the course of the following description wnmnaak in connection with the accompanying drawings, discloses a preferred embodiment er my invention.

.I n'the drawings; I v I I I I I I Figure 1 is a vertical elevational view or opposed pairs of studs according to my inventi'on in position in a concrete mold and showingpor tions in section for the purposes of illustration,

Figure 2 is an enlarged fragmentary View pf the nature of Figure 1 and showing the manner in which extensible elements of the stud'may be joined together,

Figure 3 is a transverse sectional view taken on line 33 of Figure 1,

Figure 4 is a fragmentary plan and sectional view taken on line 44 of Figure 1,

Figure 5 is a perspective view in elevation of a unitary section of my improved stud construction,

Figure 6 is a perspective view of the coupler link employed in joining sections of stud together, I I Figure 7 is a perspective of a stringer stirrup that I use in tieing the variousstuds of one wall together and in proper alignment,

Figure 8 is a perspective view of a wedge used in connection with the st'irrups in aligning a wall structure, I s

Figure 9 is a perspective view of a filler block that Ius'e'in my invention, I I

, Figure 10 is a perspective view of one of a pair of stud leg members that I associate together to make a unitary stud section, I

Figure 11 is a vertical side elevational view of a stud section. I I

Figure 12 is a vertical front elevation view partially in section as though taken on line |2 2 'of Figure 11, and a I I Figure 13 is fragmentary sectional view taken on line I 3f| 3"of Figure 12. I I

Referring to the drawings, throughout which like numerals designate like parts, the numerals "l5 a'nd "5 indicate paired vertical structural shapes, in this instance angle irons, which are arranged together in pairs butslightly spaced apart as shown in the jdifierentviews. I

Inone end of the space between the members lfSIa'nd I6 I mount the connector link l8 having the side lugs 19 and the upwardly disposed sloping, fa'cesZD. The tongue 2| extends outwardly from the body 18 past the lugs IQ for joinder with a second unitarystud section. The link I8 is V positioned. between the ends of the members l5 and It so that bolts 22 passing therethrough and :engagingin aligned bolt holes in the body l8 will secure the elements together. I

SpacedfrOm. he opposite ends of the' stud members is the filler block 214 retained therein by the bolt 25 which by reason oi thisspac'ing, leaves the slot ZB for the accommodation of the tongue .2! 'onthe link I8. I I

I A. stirrup designated as a whole by the refer ence character 28, has a foot plate 12 9 th at stands outward from the T-shaped structural upright 30, 'I'he insert tongue 3i of the member- 3Q is adapted to be fitted into the slot between the flanges of the spaced apart members I I5 and I6 of a stud unit. 7 Suitable brace webs 32 fit in the angle between the face of the T-member 30 and the underside of the foot plate 29. Plate 29 also has an upstanding lip 33 for retaining a stringer that may be laid therein and for retaining a Wedge that it may he wished be driven between the stringer and the stirrup for alignment reasons.

On the lower end of the member I6 I provide the angle clip suitably secured thereto and having a nail hole 36 in its outstanding leg for a purpose later to be described.

In forming a mold or form wall for concrete casting a ground stringer 3939 is laid along the edges of the space above which a wall, for instance'is to be cast. To these stringers, the inner one first and preferably, the vertical stud units are secured by having the flange 35 nailed thereto as is shown in Figure 1. A lateral tie 40 may be laid out generally at right angles to the Wall to be formed and a diagonal brace 42 positioned therebetween and the stirrup Web 32 to erect the stud unit in a vertical or adjusted position as indicated.

Sheathing boards 44 are positioned against the inner face of the stud unit and retained thereon by nails 45 passing through the holes 45 in the angle members l5 and i6. Certain of the upper edges of the boards 4% will be provided with notches 48 for the reception of the tie straps 59 that are used to tie spaced apart walls together. The ends of the straps are slipped between members l 5 and it in the space provided and as shown in Figure 3 a nail 51 or other tie member is inserted in a hole 52 with the lug 53 on the strap a distance from the end abutting the inner face of the board at alongside a notch 48.

When one panel has been erected as described a complementary panel is also erected in the same manner and tied to the first panel by means of the tie straps described or by other similar means.

Additional upper extensions are also formed by joining further stud units to these first erected by inserting the tongue 2| into the space 26 on the end of a stud member, and inserting a tie bolt 55 therethrough. Sheathing is applied and tied in place in the before described manner to increase the height and volume of the form.

When a wall panel is constructed and erected it must of course be aligned with the plane in which it is desired the subsequently cast wall is to lie. For this purpose stringers 51 are rested in stirrups that are supported from the stud members. These stringers are usually wooden timbers and are consequently subject to variations due to warping and the like. In such instances as it is desired to shift and swing the Wall to accommodate the curved or crooked stringers and to tighten the stringers in the stirrups, wedges 58 shown in Figure 8 are driven between the lip 33 and the stringer edge or between the upright T-member 3'0 and the stringer edge. In some cases a combination of wedges on both sides will be used. .1 It will be seen that'the. slot .formed between the members If: and It by reason of their being spaced apart by the link l8 and the filler block 24 will accommodate the ends of anytie means that may be used anywhere along the length of the stud. This is a distinct advantage over those studs wher the tie must be engaged in a fixed hook or on a lugor the like that is provided in the stud for that purpose. My tie means is merely inserted between the spaced apart angle members wherever it comes and a nail or the like inserted through it to hold it in place.

In dismantling forms constructed according to my disclosure, when the angles l5 and it are removed from the form lumber, all the nails employed to hold the structure together are also stripped so that the lumber is clean and ready for further use.

While I have described this device as being used with a strap metal tie as shown in the drawings, I do not wish to be limited thereby, beyond the scope of the subjoined claims, as that is only a single form of tie that may be used. For example the conventional twisted wire tie works satisfactorily although not with the facility that the strap tie is attached in place.

By use of my stud arrangement, the forms are in effect sectional panels that, when a wall is cast, may be removed as a unit of a size convenient to handle from the setting concrete and set up at another point for subsequent use in casting another concrete body.

The foregoing description and the accompanying drawings are believed to clearly disclose a preferred embodiment of my invention but it will be understood that this disclosure is merely illustrative and that such changes in the invention may be made as are fairly within the scope and spirit of the following claims.

I claim:

1. A wall for concrete forms comprising a panel of sheeting material having a plurality of stud members secured thereto in a manner to stand in a vertical position, each stud member comprising a bar having divergently extending flanges on one edge, forming a broad face, means for securing said member to the sheeting material, said bar being slotted therethrough substantially its full length at right angles to said broad face, and a stirrup secured in the slot in said bar for the reception of structural stringer members to lie transversely of said bar and to tie a plurality of said bars together.

7 2. A stud member for use in the construction of concrete forms comprising a bar having divergently extending flanges on one edge forming a broad face to receive and be secured to sheet form material, said bar being slotted therethrough substantially its full length at right angles to said broad face, and a stirrup having a tongue secured in said slot for the reception of structural stringer members to lie transversely of said bar and to tie a plurality of said bars together. v

3. A stud member for use in the construction of concrete forms comprising a bar having. divergently extending flanges on one edge forming a broad face to receive and be secured to sheet form material, said bar being slotted therethrough substantially its full length at right angles to said broad face, a notch in one end of said bar and an oblique tongue on the other end of said bar cut at an obtuse angle to said broad face and adapted to fit into a similar notch of another and similar bar, said tongue being slid ably removable from said notch in another bar by movement normal to said broad face. OMAR SUMMERS.

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