US2711573A - Clamp for building forms - Google Patents

Description

June 28, 1955 uss CLAMP FOR BUILDING FORMS Filed NOV. 24, 1952 Russell Bliss INVENTOR. m 5 mg; 3m

fluw and United States Patent CLAMP FOR BUILDING FORMS Russell Bliss, Ellenville, N. Y., assignor to Nora Bliss, Ellenville, N. Y.

Application November 24, 1952, Serial No. 322,316 2 Claims. (Cl. 25-131) This invention relates to the art of casting and molding concrete structures and more particularly to a clamp for use in securing various sections of building forms.

In casting concrete structures such as footings, forms must be erected in spaced parallel relationship. Heretobefore it has been necessary to shore .these forms using a considerable amount of lumber. It is therefore the primary object of this invention to provide means for securing adjacent sections of spaced parallel forms together in a manner which will insure the ease of casting with out the necessity of using expensive lumber.

When shoring footing forms or like molds with lumher, a great expenditure of time and effort is necessary to insure the proper alignment and the perpendicularity of the forms. It is therefore another object of the invention to provide means associated with the clamp for leveling the structure.

Still further objects of the invention reside in the provision of a clamp for building forms that is strong, durable, capable of being used and reused, simple in construction, highly efficient in use, and capable of being manufactured at a minimum of expense.

These together with the various ancillary objects of the invention which will become apparent as the following description proceeds, are attained by this clamp for building forms, a preferred embodiment of which has been illustrated in the accompanying drawings, by way of example only, wherein:

Figure 1 is a perspective view showing the clamp comprising the present invention in operative installation and associated with spaced parallel sections of building forms; Figure 2 is side elevational view of one side of the clamp arrangement; and,

Figure 3 is another side elevational view illustrating the other side of the clamp as associated with the building forms.

With continuing reference to the accompanying drawings wherein like reference numerals designate similar parts throughout the various views, reference numerals and 12 designate a pair of adjacent sections of forms and reference numerals 14 and 16 designate another pair of adjacent sections which are spaced from and parallel to the forms 10 and 12.

A substantially L-shaped member 18 is provided and is secured in an inverted position in an overlapping relationship to the sections 10 and 12. Apertures 20 are formed in the vertical side walls of the member 18 and other apertures 22 are provided in the top flange of the member 18. Welded or otherwise attached to the member 18 is an angle member which is provided with a plate 28 parallel to the vertical sides of the member 18. Apertures 26 are formed in the plate 28 and are adapted to align with certain of the apertures 20 in the member 18. The angle member has a flange portion 31 extending outwardly from the plate 28 and at right angles thereto. Bolted to the flange by means of fasteners 32 is a transverse bar 34 of suitable length which is provided with a series of apertures 36 therethrough for selective ice alignment with an aperture in the flange 30 through which the bolt fastener 32 extends. The transverse member 34 is constructed of angle iron for a purpose to be henceforth explained. Extending through one of the apertures 36 is another bolt fastener 38 which secures a diagonal brace 40 to the transverse member 34. The other end of the diagonal brace 40 is riveted or otherwise pivotally secured as at 42 to the flange 30. Secured to the plate 28 and extending outwardly therefrom is a loop or eye 44 which is adapted to receive a pointed L-shaped rod 46 which is adapted to extend at an angle relative to the form sections 10 and 12 and into the ground so as to secure the forms to the ground.

The transverse member 34 extends between the form sections 10 and 12 and 14 and 16 and beyond. Other apertures 48 extend through the transverse member 34 and a bolt fastener 50 secures an angle member 52 to the transverse member 34. The angle member 52 is provided with apertures 54 therethrough which are adapted to align with certain of the apertures 56 formed in an inverted L-shaped member 58 which extends between the form sections 14 and 16. Other apertures 60 are formed in the top of the inverted L-shaped member 58. A diagonal release brace 62 is secured by means of bolt fasteners 64 through one of the apertures 48 to the transverse member 34. The other end of the brace 62 is provided with a portion 66 which is twisted to conform with the plane of the vertical side portions of the L-shaped member 58. An aperture extends through the portion 66 and is adapted to align with a suitable aperture in the member 58. A loop or eye 68 is formed at the lower portions of the angle member 52 and has an aperture therethrough for reception of a pointed L-shaped rod 70. The rod 70 is adapted to engage the ground.

In erecting a form for casting concrete in accordance with the concept of this'invention, the form sections 10 and 12 are abutted together and using the L-shaped members 18 together with suitable nails, preferably of approximately eight penny size, the angle member and the L-shaped member 18 may be rigidly secured to the sections 10 and 12 securing the sections 10 and 12 together. The rod 46 may then be driven into the earth. Then, the L-shaped member 58 and the angle member 52 may be readily secured to the sections 14 and 16 using similar nails. An additional nail as at 72 extends through the release brace 62 and through the L-shaped member 58. By placing a level on the platform formed by the angle iron configuration of the transverse member 34, the forms may then be readily moved about until the sides thereof are aligned. The rod 70 is, of course, driven into the ground.

Since from the foregoing, the construction and advantages of this clamp for building forms are readily apparent, further description is believed to be unnecessary.

However, since numerous modifications will readily occur to those skilled in the art after a consideration of the foregoing specification and accompanying drawings, it is not intended to limit the invention to the precise embodiment shown and described, but all suitable modifications and equivalents may be readily resorted to that fall within the scope of the appended claims.

What is claimed as new is as follows:

1. A clamp for use in securing together adjacent sections of spaced parallel forms used in casting concrete comprising substantially inverted L-shaped members having horizontal portions, said members being secured to and extending between said adjacent sections with said horizontal portions overlying the upper edges of said adjacent sections, angle members secured against said L-shaped members, a transverse leveling member extending between and beyond said angle members carried by said angle members, a brace member secured to said transverse member and one of said angle members, and a release brace secured to said transverse member and secured against one of said L-shaped members, said release brace being secured against said L-shaped member by a fastener extending through said L-shaped member and through said release brace, flanges secured to said angle members, and ground engaging fasteners extending through said flanges.

2. A clamp for use in securing together adjacent sections of spaced parallel forms used in casting concrete comprising substantially inverted L-shaped mem bers having horizontal portions, said members being secured to and extending between said adjacent sections with said horizontal portions overlying the upper edges of said adjacent sections, angle members secured against said L-shaped members, a transverse leveling member extending between and beyond said angle mem- References Cited in the file of this patent UNITED STATES PATENTS 955,800 Hotchkiss Apr. 19, 1910 1,965,319 Romero July 3, 1934 2,518,847 Youngrnan Aug. 15, 1950

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