US2713711A

US2713711A - Concrete form

Info

Publication number: US2713711A
Application number: US320670A
Authority: US
Inventors: James J Eandi
Original assignee: Individual
Current assignee: Individual
Priority date: 1952-11-15
Filing date: 1952-11-15
Publication date: 1955-07-26
Anticipated expiration: 1972-07-26

Description

July 26, 1955 J. J. EANDI CONCRETE FORM Filed Nov. 15, 1952 JNVENTOR. ./HMES d. EHA/O/ lla. |5

United States Patent O CONCRETE FORM James J. Eandi, San Leandro, Calif.

Application November 1S, 1952, Serial No. 320,670

5 Claims. (Cl. 25--131) This invention relates to a concrete form device, particularly of the type including a plurality of spaced pairs of stakes wherein each pair is connected by a tie.

A primary object of the invention is to provide a concrete form device of the above general type wherein there is an anvil mounted on the upper end of each stake and wherein there is a tie bar adapted tol slide onto the upper ends of a pair of stakes and downwardly to a place below the anvils, and operable when placed on the stakes to prevent spreading of the upper ends of the stakes, particularly during and after the time that a concrete mix is being poured into form boards laterally sup ported by these stakes andV tie bars.

Another object of the invention is to provide a form device including a pair of stakes, a tie connecting the stakes, and form boards arranged between the stakes, wherein at least some of the form boards are spaced from the stakes and maintained in position by spacers connected to the boards and to the stakes, in the latter instance by nails driven through openings in the stakes.

Fig. l is an elevational View in transverse section of a device embodying the concepts of the present invention, showing the same after the concrete mix has been poured.

Fig. 2 is a top plane view of the arrangement disclosed in Fig. 1.

Fig. 3 is a longitudinal view of a stake taken from the flange side thereof.

Referring to the accompanying drawings wherein simi lar reference characters designate similar parts throughout, the complete form includes a plurality of pairs of stakes, the stakes of each pair being designated by the reference numeral 9 and being detachably connected by a tie bar 11, more of which will be presently said. Each stake is channel-shaped as is apparent from the drawings, the side flanges, designated by the

reference numerals

9a and 9b, of each stake being inturned adjacent the lower end ot' the stake and iiattened at said lower end. The attened lower end is formed to a point to facilitate driving of the stake into the ground.

At the upper end of each stake is an anvil 13, secured, such as by welding, to the web 9c and flange 9a of said stake, and adapted to receive blows delivered to the stake while driving the stake into the ground. All the stakes are identical and, therefore, it is apparent that when the stakes are arranged to face in opposite directions, the free ange 9b of the upper stake (as the parts are depicted in Fig. 2) will be disposed to the right whereas the free flange 9b of the lower stake (as the parts are depicted in Fig. 2) will be disposed to the left.

Tie bar 11 has its ends 11a and 11b reversely bent, but in directions opposite from one another, to adapt the same for slidably fitting onto the free anges 9b of a pair of stakes. By this design, the tie bar can be readily placed onto the stakes and positioned below the anvils without interference with the anvils.

In use the pairs of stakes are driven into the ground, the stakes of each pair being arranged to face outwardly and are disposed a predetermined distance apart and invention has been provided.

Patented July 23, i955 2 slightly out of lateral registry (as is clearly apparent from Fig. 2), the pairs of stakes themselves being longitudinally spaced at convenient distances from one another (as is also apparent from Fig. 2). After the stakes have been driven into the ground, tie bars il are placed onto the stakes and slidably forced downwardly on the stakes to a place below the anvils, said tie bars functioning to prevent spreading of the upper endsof the stakes. The frictional contact between the ends of the tie bars and the stakes is normally sufficient to prevent undue downward movement of said tie bars. However, lugs may be provided on the upper ends of the stakes to positively limit downward movement of said tie bars.

'if a T-foundation is to be poured, form boards 15 are placed on the ground and against the inner faces of the stakes and secured to the stakes by means of nails 17, which are driven through nail shank openings 9d, formed along the web 9c of each stake, into the form boards until the heads of nails are driven into engagement with the webs. The upper and narrower portion of the foundation is defined by form boards 19 retained in position by spacers 2 suitably secured to the form boards, said spacers being Secured to the stakes by means of nails 17 driven through nail shank openings 9d. The concrete mix is now poured into the space defined by the form boards and allowed to set. Thereafter, the tie bars are slipped oi the upper ends of the stakes past the anvils, said stakes now being spread apart to pull the nails, extending therethrough, from the spacers and form boards 15 to allow the form boards and spacers to be readily disassembled.

By the present invention a stake and tie arrangement has been provided wherein the stakes are identical in formation, and are adapted to be retained against spreading movement at the upper ends thereof by a tie bar designed to slidably t on the upper ends of the stakes and be moved past anvils, secured at the upper ends of the stakes, to positions below the anvils.

Also, a novel spacer and form board arrangement for forming a T-foundaticn and designed for use in combination of the stake and tie arrangement of the present It is to be understood, however, that the invention is not intended to be limited to the formation of T-foundations, since obviously many other types of concrete structures can be readily formed by use of various types of form boards and spacers and the like supported by the stakes in various manners.

While I have shown the preferred form of my invention, it is to be understood that various changes may be made in its construction by those skilled in the art without departing from the spirit of the invention as defined in the appended claims.

Having thus described my invention what I claim and desire to secure by Letters Patent is:

l. A device of the character described, comprising a pair of channel-shaped stakes adapted to be driven into the ground at a predetermined distance apart with their anges extending outwardly, each stake having an anvil on its upper end adapted to receive blows delivered to the stakes during placement of the stakes in the ground, and a tie bar rectangular in cross section on the upper ends of the stakes located below the anvils, said tie bar having its ends reversely bent to slidably engage one flange of each stake, said tie bar being slidable off said ends past the anvils.

2. A device of the character described, comprising a pair of channel-shaped stakes adapted to be driven 'into the ground at a predetermined distance apart with their anges extending outwardly, said stakes having nail shank openings therealong by which form elements adapted to be disposed between the stakes may be retained in a predetermined arrangement by driving nails through the nail shank openings into the form elements, each stake having an anvil on its upper end adapted to receive blows delivered to the stake during placement of the stakes in the ground, a tie bar of rectangular cross section having its ends reversely bent and slidably engaging one flange of each stake adjacent the upper ends of the stakes.

3. A device of the character described, comprising a pair of channel-shaped stakes adapted to be driven into the ground at a predetermined distance apart with their flanges extending outwardly, said stakes having nail shank openings therealong by which form elements adapted to be disposed between the stakes may be retained in a predetermined arrangement by driving nails through the nail shank openings into the form elements, each stake having an anvil on its upper end adapted to receive blows delivered to the stake during placement of the stakes in the ground, and a tie bar of rectangular cross section on the upper end of the stakes, located below the anvils, the ends of the tie bar being reversely bent to slidably engage one ange of each stake to adapt thc tie bar to be slidably removed from or slidably placed onto the upper ends of the stakes, said anvils being spaced from said flanges, whereby the tie bar may be removed from or placed on said stakes past the anvils.

4. A device of the character described, comprising a pair of channel-shaped stakes adapted to be driven into the ground at a predetermined distance apart with their flanges extending outwardly, said stakes having nail shank openings thcrealong by which form elements adapted to be disposed between the stakes may be retained in a predetermined arrangement by driving nails through the nail shank openings into the form elements, each stake having an anvil on its upper end adapted to receive blows delivered to the stake during placement of the stakes in the ground, said stakes being identical in formation and the anvil on each stake being secured to one of the anges on the stake, a tie bar rectangular in cross section having its ends reversely bent in directions opposite from one another to adapt the tie bar for slidable engagement with the free ilanges of the stakes adjacent the upper ends thereof.

5. A device of the character described, comprising a pair of channel-shaped stakes adapted to be driven into the ground at a predetermined distance apart with their anges extending outwardly, said stakes having nail shank openings therealong by which form boards adapted to be disposed between the stakes may be retained in a predetermined arrangement by driving nails through the nail shank openings into the form boards, some of the form boards being spaced inwardly of the stakes, spacers extending between the latter-mentioned boards and Stakes and being secured to said latter-mentioned boards, each stake having an anvil on its upper end adapted to receive blows delivered to the stake during placement of the stakes in the ground, said stakes being identical in formation and the anvil on each stake being secured to one of the anges on the stake, and a tie bar rectangular in cross section having its ends reversely bent in directions opposite from one another to adapt the tie bar for slidable engagement with the free flanges of the stakes adjacent the upper ends thereof.

References Cited in the tile of this patent UNITED STATES PATENTS 849,664 Deeds Apr. 9, 1907 1,140,776 Teters May 25, 1915 1,921,302 Polhemus Aug. 8, 1933 2,237,997 Moccia Apr. 8, 1941 2,661,517 Findley Dec. 8, 1953