US2008162A - Building construction form - Google Patents

Description

July 16, 1935 v c. w. WADDELL 2,008,162

BUILDING CONSTRUCTION FORM Filed Do. 12, 1952 2 Sheets-Sheet 1 July 16, 1935. c. w, WADDELL 2,008,162

BUILDING CONSTRUCTION FORM Filed Dec. 12, 1932 2 Sheets-Sheet 2 ill.

' conveniently assembled to provide forms for l rality of adjustment openings filled withasofter Patented July 16, 1935 UNITED STATES PATENT OFFIE BUILDING CONSTRUCTION FORM Clarence W. Waddell, Dallas, Tex. Application December 12, 1932, Serial No. 646,925

sheet which is preferablymade of metal, but which may be made of any suitable material. Each sheet is provided with a vertical flange H, at one end thereof and the sheets may be of any desired size. A plurality of these sheets are used inthe construction of forms for molding concrete columns, beams, walls and the like.

Each sheet is provided with a plurality of slots or openings l2 which are positioned in staggered relation over the entire area of the sheet and flange. The slots are made sufficiently large to receive an ordinary tenpenny nail, but the invention is not to be limited to any particular size of said slots.

In carrying out the invention in the construction of a column form, as shown in Figure 1, four sheets it are used. The sheets are positioned to form a square, the flange H of one sheet lying contiguous to the rear side of its adjacent sheet. It is noted that the slots 52 in the flange of one sheet are. divergent from the slots in the adjacent sheet. By arranging the slots in this manner, one ormore of. the, slots in'the flange will, at" allv times, be in registration with a similar number of slotsin the adjacent sheet, no matter what position the sheets, are in rela tion to each other. (Figure 6.) t is obvious that the size of the form can easily be enlarged or reduced by merely sliding each sheet outwardly or inwardly along its adjacent sheet.

If desired, thev slots. l2 may be closed or filled up with lead, putty, or any similar substance, whereby a smooth surface is had. The slots which are in registration when the sheets are in an adjusted position, may be easily punched out. After the form has been used the slots so opened may be refilled and the sheets are ready for use in constructing another iorm. Any suitable means may be used for fastening the sheets in adjusted positions. However, I have shown a most simple and eliective way of securing the sheets together. As has been hereinbefore ex- 6 Claims.

This invention relates to new and useful improvements in building construction forms.

ne object of the invention is to, provide an improved form which may be expeditiously and molding concrete beams, girders, slabs, walls, and the like.

A particular object of the invention is to providea molding form including a plurality of sheets arranged with divergent slots, whereby they may be adjusted in different directions and easily fastened in adjusted positions.

Another object of the invention is to provide a form sheet made of metal and having a plumaterial, which may be knocked out when it is desired to use one or more Ofsaid openings.

Still another object of the invention is to provide a simple fastening means for preventing buckling of the sheets and forholding them in position against the sides of a column, beam or other construction.

Another object of the invention is to provide an improved fastening device for securing the sheets together and also for fastening them in place. I

A construction designed to carry out the invention will be hereinafter described together with other features of the invention.

The-invention will be more readily understood from a reading of the following specification and by reference to the accompanying drawings, in which an example of the invention is shown, and

wherein: I I

Figure 1 is an isometrical View of a form constructed in accordance with the invention,

Figure 2 is a detail showing one of the joints and the fastening means therefor,

Figure 3 is an enlarged view of the same,

Figure 4 is a detail in perspective showing One of the corner connections,

Figure 5 is a transverse sectional view showing a slab and beam form,

Figure 6 is a detail showing two of the sheets adjusted in offset relation,

Figure 7 is a side elevation of one of the clamps,

Figure 8 is a longitudinal vertical sectional View of the same,

Figure 9 is a horizontal cross-sectional view, taken on the line 9-9 of Figure 7,

Figure 10 is a horizontal cross-sectional view taken on the line Ill-iii of Figure 7, and

ister with slots in the adjacent sheet. An ordinary nail l3 (Figure 3) is passed through the slot [2 in the flange and through the slot in the sheet, the end of the nail extending outwardly from. the form. The slots are of such size as to prevent the head of the nail'irom passing therethrough. A clamp 14 is locked on the outer end of the nail and bears against the outer face of Figure 11 is a view of the wedge which is used e Sheet tosecure y hold Said- Sheet and the in connection with the clamp; V flange of the sheet together. If desired, a wedge In the drawings the numeral It designates a 15 maybe drivenbetween the inner edge of the plained, two or more slots in each flange ll regclamp and the sheet to assure a tighter fit between the sheets. 7

The clamp M, as clearly shown in Figures 7 to 10, includes a square housing or sleeve it. A wedge-shaped dog it having teeth l! on its upper edge is provided with trunnions 58 on each side thereof, and these trunnions are mounted in vertical slots I9 in each side of the housing, whereby the dog E6 is only capable of vertical movement. A drift plunger 25 is positioned beneath the dog and trunnions H on each side thereof ride in horizontal slots 22 in the sides of the housing. It is seen that the plunger is limited to a horizontal movement. 7

As the drift plunger is slid inwardly, it will ride beneath the wedge-shaped dog IS and due to the shape of both the dog and the plunger, the dog will be raised and the teeth II on the upper edge of said dog will grip the endof the ing at the rear portion thereof.

"its locked position, to release the same. .It'is obvious that the clamp is easily and quickly at.- tached o-r detached and is most effective in clamping the sheets together.

By using the metal sheets together with a quick and easy fastening, means, the time, trouble and expense of buiiding the usual wood forms are eliminated. The sheets can be made in standard sizes, and due to the divergent slots in said sheets, it is possible to adjust the sheets in any vertical or horizontal position in relation to each other, thereby permitting any form necessary in building construction to be constructed.

In using the metal sheets ill in the building of forms, it is necessary that a suitable bracing or reinforcing means be provided, as the sheets are comparatively thin, their resiliency causing a bending 'or buckling at their center portions;

Referring again to Figure 1, in the construction of a column form, transverse tie rods 25 are provided and each rod has a flattened portion or. lug 2t positioned near each end. The rods are passed through one of the slots [2 about midway of each sheet and after both lugs are within the form, the rods are turned so that the lugs are substantially at right angles to the slots. With this arrangement, it is impossible to withdraw the rods from the sheets without first alining the lugs with the slots therein. The outer ends of the rods extend outside of the form and vertical channel bars 2'! are positioned so that the outer end of each rod passes therethrough. The clamps M are then locked in position on the ends of the rods, and these clamps bear against the channel bars 27. t is readily seen that the lugs 26 prevent inward displacement of the sheets and the clamps i i, together with the channel bars, prevent any cuter displacement thereof. The channel bars also serve to reinforce the form vertically and help to give it rigidity.

. Although I have illustrated and described the sheets as used in constructing a column form, it is to be clearly understood that theinvention is not to be limited to this particular use. The flange it may be eliminated and the sheet could be merely a flat piece of metal. In fact, it has been found that it is necessary in constructing some forms that the sheets be without the flange.

supported by said flange.

In Figure 5, I have shown the construction of one form wherein the flat sheets are used.

The sheets l0, having the flange II, are suitably supported on a jack, blocks, etc., and constitute the form for a cross beam of a room. The

sheets are bracedby the rods 25 and the bottom of the form may be supported on the rods so that it is adjustable, whereby the form may be of any desired height. This beam ties into the vertical columns of the room. The flange ll projects outwardly from the form and the ends of flat sheets 16 (without the flange) overlie and are The sheets It) may be secured to the flange by the clamps I4. Any

number of flat sheets l9 may be used, depending upon the length or width of the room, and the.

end of one sheet overlies the end of its adjacent sheet. The sheets are fastened together by the clamps UL. Any suitable means (not shown) may be used for. reinforcing the. sheets. Thus, it is seen that a form is constructedfor molding a cross beam and the floor of a room.,

It is obvious that by using the flat sheets together with the sheets I0,it is possible to construct any necessary form. Inconstructing a. form for molding a concrete foundation wall, only flat sheets It! would be used. .The sheets would be secured together, as shown in Figure 5, and the entire form could be braced by horizontally extending channels which'are held in place by the rods 25 and clamps 14. It, is believed unnecessary to explain in detail the forms that can be constructed by employingthe sheets, but it is obvious that the sheets can be adjusted quickly and easily to any desired size. Also, the sheets being made of metal can be used indefinitely, whereas the usualwood form can be used only four or five times.

The description which has been given recites more or less detail of a particular embodiment of the invention, which is set forth as new and useful, however, I desire it-understood that the invention is not limited to such exact details-of construction, because it is manifest that changes and modifications may be made, within the scope of the appended claims, without departingfrom plurality of sheets having elongated openings,

the openings of. one sheet diverging from the openings of the other sheet, and means engaging said sheets through said openings for fastening said sheets to eachother whereby said sheets may be adjusted both vertically and laterally of each other. 7

2. As a sub-combination, a molding form sheet having a plurality of spaced openings filled with a softer material to provide a smooth, unbroken surface and adapted to be knocked out to receive a fastening.

3. A mold for plastic structures comprising, a plurality of'sheets having elongated openings, the openings of one sheet diverging from the openings of the other sheet, each sheet having a vertical flange at one end thereof, and means engaging said sheetsand flanges through said slots for fastening the sheets in position.

7 l. A mold for plastic structures comprising, a plurality of sheets having registering openings therein arranged so that said sheets may be offset Vertically and laterally from each other and the openings remain in registration in any position, a headed member engaging the sheets through theslots, and a clamp on the outer end of said member whereby the sheets are held in their offset positions.

5. A mold for plastic structures comprising, a plurality of sheets having elongated openings therein, the openings of one sheet diverging from the openings of the other sheet, means engaging said sheets through said openings for fastening the sheets to each other, whereby said sheets may be adjusted both vertically and laterally of each other, and means also engaging the slots for preventing inward and outward displacement of the sheets.

6. A mold for plastic structures comprising, a. plurality of sheets having elongated registering openings therein, the openings of one sheet having their longitudinal axes disposed divergently to the longitudinal axes of the openings of the other sheet, whereby said sheets may be offset vertically and laterally with relation to each other and the registration of the openings maintained, means engaging said sheets through said openings to fasten said sheets in their offset positions, and means for bracing the sheets mid-Way thereof.

CLARENCE W. WADDELL.

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