US1651313A

US1651313A - Wall-form tie

Info

Publication number: US1651313A
Application number: US649131A
Authority: US
Inventors: Bauschard John Henry
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-07-02
Filing date: 1923-07-02
Publication date: 1927-11-29
Anticipated expiration: 1944-11-29

Description

J. H. BAUSCHARD WALD FORM TIE Nov. 29, 1927.- 1,651,313;

Filed Julyz, 19 25 IIIHIIIH \Hlllllllll;

ATTORNEYS other elements. which are required Patented Nov. 29, 1927.

JOHN HENRY BAUSCHARD, 0F ERIE, PENNSYLVANIA.

WALL-FORM TIE.

, Application filed July 2, 1923. Serial N0. 649,131.

My invention relates. to improvements in forms used in erecting concrete walls, etc., and it consists of theconstructions, combinations and arrangements herein described and claimed.

An object of the-invention is to provide a. device to be used in the erection of wooden forms for concrete wall-building which will efiiciently meet all there uirements of a tie, spreader and gauge for t e thickness of the finished wall.

Another; object of the invention is to provide'a tie of the nature described which will also supply arigid anchorage for reinforcor any to be fixed in position in the wall between the form board while casting.

A further object of the .invention is to mg rods, frames, conduits, ducts,

provide a sheet metal wall form tie which; is so bent that notches may be provided" for the reception of the form board, these notches being uniforml spaced apart so that the thickness of the nished wall may be accurately gauged by the mere use of the tie alone.

A further object of the invention is to pro-v vide a tie of the character described-which is intended to be embodied in the wall, certain projecting portions later being useable as bonds to which a brick-veneer may be fastened.

A further object of the invention resides in the herein disclosed method whereby a wall form is erected by alternately superim-.

posing form boards and ties upon each other, the nature of the ties being such as to fix the wall space between boards, the ends of the ties projecting beyond the boards being secured to adjacent uprights so as to hold the longitudinal board edges in close contact.

Other objects and aili'antages will appear in the following specification, reference being had to the accompanying drawing, in

Fig. 1 is a perspective view of one of the improved f'orm ties, f

Fig. 2 is an elevation of a portion of a wall form showing how the ties may be distributed to hold the form board,

Fig. 3 is a detail vertical sectiontaken on the line 33 of Fig. 2,

Fig. 4.- is a detail horlzontal section taken, on the line 4-4 of Fig. 2, the upright timbgs'being omitted,

v timbers.

Fig. 5 is a detail vertical section qn th it-i line 55 of Fig. 2, and

Fig. 6 is a horizontal section of a Rertion versed Z shape. Stamped out of the'fla'nges 2 and 3 are

notches

4, 5 and 6, 7 respectively. The pairs of-

notches

4, 6 and 5 7 coincide so that the flange 2 may properly be seated upon one course of form boardand that the flange 3 may properly receive the next course of form board to be' imposed on the course preceding.

It is esired to make special mention of thoseiportio'ns of both the web and upstandmg flange that extend beyond the notches described. These portions are distinguished from the main parts of the tie by referring to the web extensions 8 and flan e extensions 9. The former are provi ed with single holes 10 which are disposed close to the adjacent pairs of notches. Theseholes are for the be driven into the form-board immediately below, Fig. 5. The latter extensions 9 each have a pair of holes 11 for the purpose of nailing to the upright timbers 12 of the, formv boards setting up the wall form.

The general use of the form ties consists of placing them transversely .of the wall form as shown both in

Fi

2 and 6. How ever, there is an additiona .use to which the ties may bejput. Consider-the} third course of boards'inFi'g, 2, counting up from the bottom. Here is a pair of boards 15, the ends of which abut in a s ace between upright In order to ee the ends of the abutting boards from buc ling in any man- (Fig. 1) adownpurpose of permitting nails to in a slanting manner as suggested in ner and possibly bending out under the pressure of concrete, use is made of a pair of the ties 1, one tie beneath and one boards in question- By considering Fig. 5, the reader will see thatthe down and up turned

flanges

2 and 3 res ectively so engage the Sides of adjaon top of the under construction.

cent boards, especially the sides of the abutting boards 15, in such a marine as to preclude all possibility of bulging.

The operation is as follows: Let the reader imagine a form for a concrete wall to be As soon as the bottom course of boards is laid, a plurality of ties 1 are extended across the intermediate space, the notches 4 and 5 in the downturned flanges 2 being fitted over the upper edges of said hoards. It is advisable to place one of the ties adjacent to each of the upright timbers 12 and it is also advisable to insert ties hall'- way between the upright pieces. This arrangement is generally used in. the lower course only, and here for the obvious reason that it is desirable to start the form with a firm foundation.

The boards of the second course are now stood edgewise on the boards ot the first course, the former being inserted in the

notches

6 and 7 of the upstanding flange S. Nails are driven through the holes 11 into adjacent upstanding timbers 12, but these nails need not be driven all the way in and are preferably left projecting so as to permit easy withdrawal.

The foregoing steps are thoseot a novel method of erecting wall forms, the important features of the method being brought out in the claims.

As succeeding courses of boards are applied, such distribution ol ties 1 is made as may seem to the builder to carry with it the 'equisite amount of bracing to insure a stable structure. At places where -1torm boards abut in a space between uprights, use is made of a pair of the ties, one of which is placed above and below respectively of the abutting ends. The outwardly turned flanges engage the adjacent form board of the courses below and above the abutting boards while the inwardly turned flanges engage the abutting boards on the outside. This arrangement keeps the abutting boards from buckling underthe weight of the concrete on the inside.

\Vhenever it is necessaryto incorporate reinforcing rods or to suspend conduits in the wall space between the boards, use is made of the holes 14 for inserting the necessary supporting wire. hen the entire form is completed, the concrete is poured in. Those portions of: the tie inside of the pairs of notches are embedded in the walls and remain as a part thereof. The various nails are withdrawn and the form boards and tim bers are removed, leaving the web and

flange extensions

8 and 9.

These extensions become useful when other structure is to be built against the concrete wall. This is especially true should it be de sired to build a brick veneer wall. against the concrete wall. The web and flange extensions may be hammered down against the concrete wall so as to Ilattcn the angles and when the extension is again bent out, it becomes a bond to the brick work if it occurs on line with a mortar joint.

If the concrete wall is to be left plain, the projecting extensions oi? the form tics can be removed by bending them up and down two or three times when the ends will break oil flush with the wall. In the case of a cellar wall where the earth is to fill in on one side,

the projecting extensions may be permitted to remain without further attention. The shape of the tie 'l'urther permits of close nest:- in g when packing them for shipment. There are a number of features of advantage to be found in the wall tie.

It will be noticeable to the reader that but a small amount of nails is required by making' use of this tie, only a comparatively few being required to hold the ties to the various uprights and form boards. It is further to be noted that the boards and upri hts'are not mutilated by the driving in o numerous nails. The use of but few nails permits the ready separation of the forms after the wall has properly set, and upon removing the various boards, they may be immediately used again in building another form, without having to extract great numbers of nails and causing a consequent damage to the lumber.

According to the old practice of building wall forms, it has been found desirable to use boards of a uniform width so that the board joints on both sides of a wall would come at approximately the same level. This was necessary in order that the various tie wires could be inserted between the joints and around the uprights for tightening. The same requirement as to uniform width of board is also necessary with the use of the arrhngemeut herein disclosed. It is very desirable that the form ties 1 are to lie as near level as possible, and this is readily accomplished by using boards of uniform width, as stated.

According to present methods, it is customary, and indeed necessary, to have the end joints of the boards join at the uprights so that the abutting ends of the boards might be nailed thereto. In order to make the boards come out right, it is often necessary to cut off pieces so that the boards may end at uprights. This is especially true when a board is not quite long enough to reach the next upright. This cutting oil of ends occasions awaste of lumber. According to the invention, such waste is unnecessary,'inasmuch as abutting ends of boards may be joined in spaces between uprights, as clearly shown in Fig. 2.

While the construction and arrangement of the improved form tie as herein described and claimed, is that of a generally preferred form, obviously modifications and changes may be made without departing from thespirit of the invention or the scope of the claims. i I

I claim-z I I 1. A 'Wallfo'rm tie. composed of a strip of metal stampedto provide a center web, a flange turned down at right angles along one side andbeing notched in from the edge to receive the upper' edges of form boards in one course, and a flange turned up at right angles along the 'bthenside and being notched in from thee'dge to receive the lower edges of form boards; in a superimposed course, said upturned 'flange between the notches having holes to receive, supporting Wires, the I web and upturned-flange beyond said notches having holes to receive nails.

2. A wall form tie comprising a single rectangular strip of. metal Which is bent longitudinallyat two places to providea pair of parallelfianges extending in opposite dinotches board.

rections'and at right angles to the remaining central Web, said flanges being cut in from the edges to the web to provide aligning notches, said web having perforations situated outwardly of said notches and one of said'flanges having perforations both inside and outside of said notches.

3. A wall form tie comprising a Web, parallel downturned and upturned flanges on the longitudinal edges of the Web each being notched in alignment to receive the superimposed courses of form boards, each end of the upturned flange beyond the notches having holes permitting nailing down to upright timbers and producing downward pressure upon said boards to make a close joint, said web also having holes beyond said permitting nailing the tie to a form JOHN HENRY BAUSGHARD.