US1664152A - Concrete-form brace - Google Patents

Description

March 27, 1928.

' P. BEGHETTI CONCRETE FORM BRACE Filed Jan.l9. 1927 I flaigloja ATTORNEYS INVE Refer Bey! M Patented Mar. 27, 1928.

UNITED stars-s rerisz- PETER BEGHE'I'TI, OF SAN FRANCISCO, CALIFdRNIA.

CONCRETE-FORM Barron.

Application filed January 19, 1927. Serial No. $2,050.

This invention relates to the construction of concrete forms as used for pouringwalls of concrete and has to do with specific means for spacing the sides of the forms to the thickness of the wall.

The objects of the invention are to provide an improved spacing device particularly suitable for use with wooden forms, and which will be very cheap to manufacture, easy to apply in position as the forms are erectechwhmh willnot be liable to besome displaced whenronce in place, and which may be permitted to remain imbedded in the concrete when the wall is hard. .j The preferred form of my. improved spacer. together with slight modifications thereof are shown in the accompanying drawings. V

Figure 1 is a cross section of a concrete wall form showing one of my spacers in place, Fig. 2 is a similar view to that of Fig. 1 but shows an additional feature to the spacer, Fig. 3 is an enlarged cross section of the spacer of Fig. 2 as seen from the line 33 thereof, while Fig. i is a perspective view and shows a spacer made of a single heavy wire only provided with some but not all of the advantages of my invention;

Briefly described, my invention in its complete form comprises a plurality of wires twisted together to form a spacing bar for positioning between the spaced concrete form sides and said bar provided with devices for supporting it, and for aligning it between the form sides and to facilitate securing it thereto.

Some of the spacing bars made in accordance with my invention and here shown do not however include all of the features above enumerated.

In the drawings the spaced form sides of the mould in which the wall is to be poured, are designated 1. These are usually common boards horizontally arranged and held in place by vertical studs 2 drawn toward one another by tension loops of wire 3, which are usually insertedbetween the cracks of the boards 1 and the ends of the loops twisted together as at 4 to exert a pulling efiect on the studs and thereby force the form sides inward to a predetermined spacing depending on the thickness of the wall desired. The distance separating the form sides is controlled by the use of spacers such as wooden blocks, etc;, placed between the form sldes, but here shown as made of heavy Wire. I v

wires twisted together to form a stiff bar and with the ends 6 and 7 bent at right angles to therun of thebar so as to lie firmly I against the inner faces of the form.

' The end 6 is formed into a loop (as shown more clearly in Fig. 8) and is secured against the inner surface of the form by a nail 8.

' The brace of Fig. 2 varies from the above in having a smaller wire 9 twisted between two heavier wires 10, the latter being formed into a nail loop 6 at one end, and with oppositely offset legs 7, at the other end, while the smaller wire 9is extendedstraight beyond the legs and loop "to lie in the'crack between the form boards 1 to prevent it from falling even if the nail 8 were omitted. The extensions of the small wire are preferably also sharpened as shown at 11 so that they will penetrate the wooden boards if not inserted directly in a crack.

In Fig. 4 the spacer is shown made of a single heavy wire 12 with ends 6" and 7 bent up at right angles tothe run of the bar as with the other spacers described and In Fig. 1 the spacer comprises a pair of so I the end 6" is flattened and perforated with a hole 13 providing the equivalent of the loop 6 of Fig. 1. The other end 7' is divided or split for a short distance and the split ends spread out laterally of the bar 12 in opposite directions as shownat X X, a construction which is also shown on leg 7 in Fig. 2 wherein one of the split and laterally spread ends is designated X.

This spread split end construction provides for securing the bar in place by means of a nail 14: driven in the board and bent over thp1 leg 7' just under the split and spread en The function of the various features of my brace are almost self evident, the twisted wire construction giving the double offset legs 77 without splitting a solid bar, and at the same time providing a loop without perforating.

The double oifset legs 7-7 prevent angular displacement of the bar through accidental bumping or impingement of the concrete thereon in pouring, as due to the oflset of the legs the eifective length of the bar becomes greater if the bar is forced away from a line at right angles to the face of the mold.

The split end provides a simple aligning feature adapted for securing with a small headed nail in case a large flat headed nail is not available, whereas the spikes 11 further support the braces, especially if the nails become loosened through standing of the forms for a considerable time before pouring the concrete.

These spacers, being of metal, may of course be left in the hardened concrete wall, any of the spurs 11- being simply hammered down if objectionable, tho usually these are covered with plastering coats.

I claim: U 1. A concrete-for-m-spacer comprising a rod with its ends bent at right angles to the run of the rod and one of said ends spread laterally with reference to the run of the rod.

2. A concrete-form-spacer comprising a rod with its ends bent at right angles to the run of the rod and one of said ends split and spread laterally with reference to the run of the rod.

3.- A concre'te-form-spacer comprising a rod with its ends bent at right angles to the run of the rod and one of said ends being formed into a loop adapted to receive a securing nail.

4. A concrete-form-spacer comprising a rod formed of twisted wires, the wires at one end of the rod being formed into a loop extending at right angles to the run of the rod and adapted to receive a securing nail.

5. A concrete-form spacer comprising a rod formed of twisted wires, the wires at one end of the rod being formed into a loop extending at right angles to the run of the rod and adapted to receive a securing nail and being bent in opposite directions at right angles to the run of the rod at the other end of the rod.

6. A concrete-forrn-spaCer comprising a rod formed of twisted Wires provided with ends offset at right angles to the run of the rod, and one of said wires extending substantially in line with the rod beyond the offset ends.

7. A concrete-form-spacer comprising a rod formed of twisted wires provided with ends offset at right angles to the run of the rod, and one of said wires extending substantially in line with the rod beyond the offset ends and provided with points for penetrating the form.

PETER BEGHETTI.

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