US1580981A - Concrete-form clamp - Google Patents

Description

April 13 1926.

G. 5. WHITE CONCRETE FORM CLAMP Filed July $3, 1925 GEORGE s. wnrrii, or rueato, snonera.

CONCRETE-FORM CLAMP.

Application filed July 9, 1925. Serial No. 42,504.

To all 107mm it may concern: 7 Figure i, a view of a modified form of the Be it known that l, Grouse S. lVHlTE, device. y a citizen of the United States, residing at in the drawings similar reference charac- Tugalo, in the county of Stephens and State ters will be used to designate corresponding; 7 5 of Georgia, have invented certain new and parts throughout the several views. so useful Improvements in Concrete-Form A indicates a concrete wall that is being Clamps; and I do hereby declare the folconstructed and B the forms for the wall. lowing to be a full, clear, and exact descrip- The forms B are held in position by means tion oi the invention, such as will enable oi the improved clamping device comprisothers skilled in the art to which it appering an eye-bolt 1 that is anchored in the top 05 tains to make and use the same. of the completed wall 13. A rod 2 is pro- The invention relates to means for holdvided with an eye 3 to engage eye-bolt 1 and ing in position the form for pouring conis also secured to a block l having an opencrete walls and similar structures. ing 5 to receive the end of said rod 2 and the Under the present practice of pouring block and rod are secured together by means 70 concrete walls the forms for the walls are of a set screw 6. Rod 2 is provided with a held in position by means of rods secured plurality of flat faces 7 to form seats for the to the form and after the wall has been end of set screw 6. poured it is necessary to chisel oil the rods 8 indicates an opening in the form B to and wreck the forms by means of a hoisting receive a set screw 9, said set screw being 7 engine and a derrick. adapt-ed to engage a threaded opening 10 in This invention provides means by which the blocke. Set screw 9 has a head 11 adaptthe forms are securely held in position and ed to receive a wrench for turning it,.and after the walls have been poured and it is a shoulder 12 that engages a wedge-shaped desired to remove the forms, set screws that washer 13 to prevent wear on the part of are secured through the forms and into the form B through which the opening 8 eX- clamping members may be unscrewed from tends, the form B being made preferably of the clamp and the forms taken from the timber. walls to be, used again, thus reducing the In using the device it will be apparent 39 expense of the building of concrete structhat after the forms have been set up as tures. shown in Figure 1, the concrete may be To this end the invention has for its obpoured in between the forms and after the ject the provision of a clamping member concrete has dried suiiiciently' to permit readapted to be anchored in the foundation moval of the forms, this may be accomor in the wall already completed and includplished by unscrewing the set screws 9 and no ing a block having a threaded opening to leaving the blocks 4-, the rods 2, and eyereceive the set screw secured through an bolts 1 in the wall. After removal of the opening in the form, so that when-the wall set screws the forms B may be readily rehas been poured and has set sufliciently so moved from the walls to beused again in that the form may be removed, the set screws another location. After removal of the 9' may be removed from the clamping member forms, the holes made by the removal of the and the form removed from the wall without set screws 9 may be plastered by filling impairing the form for further use. with cement. I

The invention will be described in detail In Figure L is shown a modification in hereinafter and will be found illustrated which rod 2 is provided with a helix 2 to in the accompanying drawings in whicl1- receive the screw threads on the set screw Figure 1 is a cross section of a concrete 9 said threads being cut to engage the coils structure showing the mold forms in posiof helix 2. By this construction it will be tion, and held in place by means of the imapparent that the cost of the article will. proved clamping device, be materially reduced as compared to the Figure 2 is a top plan view of one of the cost of production and use of the article clampingwdevices, V Y shown in Figures 1, 2 and 3, and may be 7 Figure 3 is a vertical sectional view on satisfactorily used in certain classes of plane substantially as indicated by the line warn. Head 11 may also be provided with 5% of 2, transv 13F to admit eff? turn 11a ing set-screw 9 by means-of a bar inserted therein. 'i

\Vhat is claimed is r i 1. A concrete form clamp comprising a rod having an end adapted tote-anchored inside of a form, av clamp block having two openings therein one of which is threaded, aset screw adapted to engagethe concrete form and the threaded opening in the clamp 10 block and means to secure the rod in the other opening of the clamp block.

2. A concrete form clamp comprising an eye-bolt adapted to be anchored inside of a form, a rod having an eye engaging said eye bolt a clamp block, means to adjnstably secure said clainp block to said rod, and it set screw adapted to engage a concrete form and a threaded opening in the clamp block.

In testimony whereof I afiix my signature.

GEORGE S. VHITE.

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