US2981998A - She-bolt form spacer - Google Patents

Description

. c. l. WILLIAMS 2,981,998

SHE-BOLT FORM SPACER May 2, 1961 Filed June 2, 1954 3 Sheets-Sheet 1 lilla.

May 2, 1961 c. l. WILLIAMS sHE-BoLT FORM SPACER Filed June 2, 1954 3 Sheets-Sheet 2 (ggf/erf C. l. WILLIAMS SHE-BOLT FORM SPACER May 2, 1961 3 Sheets-Sheet 3 Filed June 2, 1954 United States Patent M' SHE-BOLT FORM SPACER `Chester I. Williams, 1501 Madison Ave. SE., Grand Rapids,-Mich.

Filed June 2, 1954, Sel'. No. 433,936

2 Claims. (Cl. 25-131) This invention relates to concrete forms and more particularly it relates to an improved she-bolt form spacer for assembling she-bolts to a concrete form construction. The invention is primarily directed to an improved shebolt form spacer construction for locating the inner end of the she-bolt with respect to the inner face of the sheathing. lThe invention is also directed to the utilization of the she-bolt form spacer in assembling a concrete form construction without nailing either the studs and sheathing, or walers. The invention is also directed to an improvement in a waler rod or she-bolt construction over that as disclosed and claimed in my U.S. Patent No. 2,190,748 granted February 20, 1940 for a Securing Device for Concrete Forms and my U.S. Patent No. 2,048,- 151 granted July 21, 1936 for Concrete Form Appliances.

Prior to my invention it has been eustornary'to gauge the inner' end of she-bolts from the face of the sheathing to a predetermined depth by providing the she-bolts with drilled holes to permit adjustment of 'the she-bolt relative to the studding, which was assembled by nailing the she-bolt to the studding in a predetermined position. In concrete work, where it is usually desired to assemble the forms at a predetermined distance and to provide for re- Patented May 2, 1961 Still another object'of the invention is to provide a she-bolt form spacer adapter for use on waler rods or she-bolts, which pull out of the concrete or disconnect back from the surface of the concrete to permit the reuse ofthe she-bolts or waler rods.

Another object of the invention is to provide a shebolt form spacer which is adapted upon assembly of a she-bolt to the she-bolt form spacer to affix the she-bolt form spacer to the sheathing, and to permit the disassembly of the she-bolt from the she-bolt form spacer, retaining the she-bolt form spacer in position on the sheathing for reassembly ofshe-bolt's to the concrete form construction. V p

Another object of the invention is to provide an improved she-bolt form spacer for' use with la she-bolt clamp construction which maybe used with a nail in the stud, external spacing, or with an vinternal spacer such as cones or washers bearing against the face of the form.

Still another object of the invention is the provision of she-bolt form spacers which are adapted for use with fastening devices for securing oppositely disposed form members together -by means operable either from the inside of the form or outside of the form.

Another object of the invention is the provision of an improved she-bolt form spacer so that oppositelypositioned concrete form members may be spaced in their operative position by manipulation of fastening devices from the outside of the form.

A further object of the invention is to provide an improved she-bolt form spacer which would not become iilled with concrete and hinder removal as Well as reuse.

Still another object of the invention is to provide an I improved she-bolt form spacer from sheet metal, permitmoval of the she-bolt from the intermediate tie rod, it

to permit the intermediate tie rod to be quickly, assembled to theopposite She-bolts, `allowing the same adjustment of the clamp brackets on the opposite faces of the forms.

In this manner the she-bolts and clamp brackets may be V assembled from one side of the form and placed in position, and the opposite form with the she-bolts brought in position and adjusted in place by adjusting either the intermediate tie rod or the she-bolt to correctly space the forms.

Also, prior to my invention, it has been customary to assemble the concrete forms by nailing the plywood sections or sheathing ldirectly to the studs or walers. With the present invention it is possible to prevent the damaging eifect of nailing in dismantling or Wrecking the forms.

` It is, therefore, a principal object of the invention to provide an improved she-bolt form spacer overcoming the disadvantages of. the prior art constructions.

`Another object of the invention is to provide an improved she-bolt form spacer which may be readily assembled to she-bolts and to the sheathing ,and studding forming the concreteform construction.

Another object of the invention is to provide an improved she-bolt form spacer which may be used on any standard form of threaded she-bolt or waler rod construction. Y .t

ting a portion of the she-bolt form spacerto be expanded into a hole in the sheathing of a concrete form con` struction to detachably secure the she-bolt form spacer in position'for reuse upon dismantling of the forms.

A still further object of the invention is to provide a she-bolt form spacer which may be permanently afxed to the sheathing which permits reuse of the sheathing without having to reattach the she-bolt form spacer to the sheathing.

A further object of the invention is to provide an improved concrete form construction formed from plywood Sections which permits assembly of the forms without nailing either the studs and sheathing or walersV to'provide an improved concrete form construction.

A still further object of the invention is to provide an improved concrete form construction for quick assembling and dismantling of the form members Without the damaging eiect thenailing has in Wrecking of the forms.

The invention also has among its objects'the production of improved she-bolt form spacers and concrete forms of the kind described which are simple in construction, reliable, durable, economical, inexpensive, easily installed, and satisfactory for their purpose.

In order to accomplish the various objects of the invention, I have provided yan improved she-bolt form spacer may be easily mounted in the eld foruse .with a she-bolt to which itis assembled, and to the parts forming ,the concrete form construction such as Vthe studding'` and sheathing. The she-bolt form spacer formed in accordance with this invention is readily usable for the assembly of plywood sections together withfwaler` rods, Vwaler rod supports, waler rod brackets, andstudding withoutnailing either the studs or walers. Concrete form construc-L tionsassembled in this manner, withthe use o f the she; f

bolt form spacer of this invention permit quick assembling and dismantling of the form members without the damaging effect the nailing has in wrecking of the forms.

Many other objects and advantages of the she-bolt form spacer, the assembly of the she-bolt form spacer with concrete form constructions, and the advantages of the constructions herein shown and described will be obvious to those skilled in the art from the disclosure herein given.

To this end my invention consists in the novel construction, arrangement and combination of parts herein shown and described, and more particularly pointed out in the claims.

Referring now to the accompanying drawing forming part of the specification:

Fig. 1 illustrates a view in side elevation taken through a Vertical concrete form, partly in section, illustrating the use of the improved she-bolt form spacer of my invention;

Fig. 2 is an enlarged view in side elevation, partly in section, of the improved she-bolt form spacer construction of Fig. 1, illustrating the assembly of a she-bolt and she-bolt form spacer to a concrete form construction;

Fig. 3 is a plan view, partly in section, taken along line 3-3 of Fig. 1, looking in the direction of the arrows, illustrating the improved she-bolt form spacer assembled in position with its associated she-bolt to a stud and sheathing of a concrete form construction;

Fig. 4 is a vertical cross-sectional view taken along line 4-4 of Fig. 3 looking in the direction of the arrows;

Fig. 5 is a vertical view, partly in cross-section, taken along line 5 5 of Fig. 3, illustrating the assembly of the she-bolt form spacer and its associated she-bolt aiixed to the studding and sheathing;

Fig. 6 is a plan view, illustrating the progressive steps for automatically forming on a punch press, a strip of sheet metal into sections adapted to be formed into the nal shape of a she-bolt form spacer;

Fig. 7 is a view in elevation taken along line 7--7 of Fig. 6, illustrating the shape of the resultant formed strip prior to forming into the resultant she-bolt form spacer;

Fig. 8 is a view in front elevation taken along line 8-8 of Fig. 6, illustrating the steps in forming of the she-bolt form spacer;

Fig. 9 is a view in front elevation, illustrating a concrete form construction assembled without nailing of the sheathing, studding and walers;

Fig. 10 is a plan view, partly in section, similar to that of Fig. 3 but with the she-bolt form spacer assembled in position with its associated she-bolt being spaced from the stud of a concrete form construction;

Fig. 11 illustrates an embodiment of the she-bolt form spacer assembled to a metal concrete form having a form liner of wood or fiber sheet material;

Fig. 12 is a perspective view, illustrating the application of the she-bolt form spacer in erecting sheathing which may be in the form of planking or large plywood sheets, using a double-headed nail construction and modification thereof in combination; and

Fig. 13 is an enlarged perspective view, illustrating the sheathing nail of Fig. 12 for concrete form construction.

Referring now more particularly to the drawings, an improved she-bolt form spacer 10 is illustrated, as shown assembled, on a she-bolt construction, waler rod or form tie rod, or securing device 11 together with a conventional form of clamping bracket 12 and adjusting nut 13 assembled to sheathing 14, studding 15 and waler members 16 and 16', and associated waler support brackets 17 to form-a conventional concrete form construction 18 for casting a wall or the like concrete construction with the forms 18 for forming thevopposite wall faces spaced apart by a tie rod 19 assembled to the free ends of the she-bolts 11 to provide correct spacing of the forms for the desired wall thickness. Although the concrete form construction, as illustrated in Fig. 1, may be conveniently formed by a plurality of oppositely positioned form members 18 in which the sheathing 14 of each form is connected by nails or the like with the exteriorly vertically extending studs 15, and the studs then being connected by the longitudinally extending waler members 16, it is to be understood that it is within the scope of this invention that a similar concrete form construction, which will be disclosed later, with reference to Fig. 9 may be constructed from standard plywood sections without the use of nails.

Referring to Figs. l through 4, the she-bolt form spacer 16 is substantially cylindrical in shape and at the end, to be positioned within the sheathing 14, is provided with axially extending lugs 20, preferably four in number, as illustrated in Figs. 4 and 5. These lugs 20 are provided at their outer end with substantial radial or lateral projections 21 which, as illustrated in Fig. 2, are adapted to be inserted in a hole 22 in the sheathing 14 and, as the she-bolt 11 is forced through the she-bolt form spacer, the prongs 21 move radially outwardly and embed themselves within the sheathing, as illustrated in Figs. 3, 4 and 5. As the she-bolt 10 is also formed with the radially extending lugs 23, which serve as stop means to gauge the she-bolt form spacer with respect to the outer face of the sheathing, the she-bolt form spacer is securely locked in position on the sheathing of the form as the she-bolt 11 is inserted, as shown in Fig. 3. The she-bolt form spacer may then only be removed from the sheathing by placing a suitable tool underneath the lugs 20 and forcing them radially inwardly substantially to the position shown in Fig. 2, after which it may then be detached from the sheathing.

Referring to Figs. l through 4, the she-bolt form spacer has peripherally spaced axially extending slots 24 which are oppositely formed to permit a securing means, such as a double-headed nail 25, to be driven through the diametrically opposite slots and a hole 26 in the she-bolt into the studding 15 after the forms 18 have been correctly spaced for the required wall thickness to be poured. In erecting the she-bolt form spacers 10 to the sheathing and the insertion of the she-bolt 11 within the form spacer, it is preferable that they be erected, as shown in Figs. 1 and 2, so that the securing means 25 may be easily affixed to the studding. However, this is not entirely essential as long as the slots 24 and the hole 26 are aligned to the extent that a nail may be driven to be secured into the studding. It is also to .be noted that the radially extending lugs 23, as shown in Figs. 3 and 5, be positioned between the inner face of the studding and the sheathing 14. As the metal forming the form spacers is relatively thin, this has relatively little effect upon the abutting of the face of the sheathing to the studding since the face of the studding would slightly compress at the point, as illustrated in Fig. 3, where the lug is positioned between the studding and the sheathing. It is preferred to position the holes in the sheathing with respect to the studding as close as possible, as illustrated in Figs. 3 and 5, although any slight variation would have relatively small effect upon the rigidity of the assembled form.

A typical she-bolt form spacer adapted for use with a iV16 she-bolt is approximately 35/16 in overall length and is formed from twenty-one gauge material. The slots 24 are approximately 1A wide and 21/2" long. The radial projection of the lug 23 is approximately 1% and that of the prong portion 21 is approximately 1/8. The axial spacing between the lugs 23 and the prongs 21 is approximately W16". It is to be understood that these dimensions are preferable for a EV16" .she-bolt and that a portion of the dimensions may be used for other dimensioned stay rods which, in some instances, on large form work may have a diameter of l, 1% or 1%, depending upon the type of form and load to be supported by the she-bolt construction. Although it is preferred to use this type of she-bolt form spacer with aligned forms for the assembly of forms for pouring walls, as illustrated in Fig. l, using a split r J waler construction, it is to be understood that the she-bolt form spacers may also be used with cantilever type formsV in which the studding is in the form of strongbacks. Usually, however, in the cantilever type of form construction, the Ashe-bolt is positioned to extend through the strongback rather than being placed alongside of it.

Referring to Figs. 6, 7 and 8, there is illustrated the fabrication of the she-bolt form spacer from sheet material 30 in a progressive step die. In the rst step of the fabrication within the progressive stepdie, the portion A of the strip is formed with slots 24 and a modified 'slot 24', so that as the strip is later cut oi along the edge of the slot as at 31 and 31', the completely formed she-bolt form spacer is adapted to be formed into its substantially cylindrical shape. In this same operation the material is slit, as at 32 and 33, to form the lug 23 which is substantially %2 across a face thereof. Alternating with the lugs 23 are the lugs'20, which are formed by a corresponding slit 32, so that the face of this lug is substantially 1A. For

the particular 9/16" waler rod the first projection from the left of Fig. 6 is substantially 7/32 and thereafter alternate first 1A" and then 3/16" withthe final lug at the right 20 being approximately 7/32 to complete the circumference for a W16 diameter waler rod of approximately 1%". In the second step B in the fabrication within the progressive step die, referring to Figs. 6 and 8, the portions 34 from the first step are formed with a 9/32 radius to the shape 34', as illustrated in the step B of Figs. 6 and 8, and this curvature corresponds to the radius of the waler rod and extends throughout the length of the she-boltform spacer and is also formed on the lugs 20, the lugs intermediate being left straight, as illustrated at 23. In the nextstep C within the progressive step die, the lugs and 23 are completed to their final shape, as illustrated in Fig. 7, with the lugs 20 having a taper corresponding substantially greater than the taper at the end of the shebolt. These lugs 20 are tapered inwardly radially suiciently` that the projections 21 may extend through the opening 22 inthe sheathing, as illustrated in Fig. 2, to permit the insertion of the she-bolt 11 through the sheathing and at the same timeV as the she-bolt is inserted therein, the projections 21 are forced into the peripheral edge of the opening 22, securing the she-bolt form spacer in position on the sheathing.

After the strip 30V has been progressively formed, as

illustrated in Figs. 6, 7 and 8, the strip is sheared off to form the prefabricated blanks C,` after which it is suitably formed to the completed Vshape of the she-bolt, as illustrated in the enlarged views of Figs. 2 through 5. As the die which fabricates the strip, as illustrated in the steps A, B and C,'is actuated during the press operation, the prefabricated strip C is sheared off, after which it may be formed either in a separate machine to the completed shape or may 'be formed in the same press with suitable equipment if desired. It is also within the scope of the invention that the sheared blank C may be left in this shape-to be formed on the job about the she-bolt to which it is mounted with the workman using pliers or forming it by his hand, as the material isrrelatively thin and may be readily formed in this marmer.` Y

Referring to Figs. 1 and 9, there is illustrated two types of concrete form constructionswhich may be fabricated, using the she-bolt form spacer of my invention. Referring to Figs.Y lthrough 4, the sheathing may be affixed in the normal manner to the studding 18 and placed in` position for erecting the form for the Wall to be poured, whereupon the lower walers y16 are supported upon the waler support members 117 which, in turn, have been affixed to the studding 18 as shown. The waler support members are formed and erected as disclosed and claimed in my United StatesPatent fNo. 2,644,219, patented July 7, 1953. The she-bolt 11 is then erected in place after the she-bolt form spacer has been positioned inv the sheathing, as described with reference to Figs. l, 2 and 3 above. The upper waler member 16f .is then placed in position and the clamping bracket 12 mounted on the she-bolt and the adjusting nut 13 adjusted to the position shown. After this has been done, the nail is secured in position. The opposite form is erected in a similar manner, and the free inner ends of the she-bolts are connected together by a tie rod 19, whereupon the opposite forms are correctly spaced for the thickness of the wall to be poured as is well `understood in the art. When the forms are dismantled the members are detached in the reverse order and, if desired, the waler support brackets 17 may be pivoted inwardly after certain of the securing means are removed, the support bracket being pivoted about the securing means 35'. The shebolts and she-bolt form spacers may be retained in position, though usually the she-bolts are Withdrawn so that they may not become damaged. The she-bolt form spacers 1t) are retained in position because of the locking thereof in the sheathing 14, as illustrated in Figs. 3 and 4. It is also within the scope of the invention that instead of placing the securing means inthe form of a doubleheaded nail 25 through the opposite slots 24 in the shebolt form spacer 16 and through the hole 26 in the shebolt, a cotter key may be placed therein and, when this is done, the cotter key is so positioned that the location of the cotter key is substantially 90 from the position of the double-headed nail, the she-bolt 11 being rotated to permit'this. The cotter key is obviously spread and a double-headed nail 25 then may be driven through the opening in the head of the cotter key, securing the cotter key to the studding and the cotter key, in turn, supporting the outer end of the she-bolt form spacer and its cony nected she-bolt.

- Referring to Fig. 9, a concrete form may be constructed which may be readily assembled and dismantled and in which the form members are not damaged since they are not nailed. To erect a concrete form in this manner,

a standard plywood panel 36, such as a 4' x 8' panel, is-

5. After the she-bolt form spacers and she-bolts are placed in position, and the clamp brackets 12 and adjusting nut 13 placed on the end of the she-bolts, the

bottom walers 16 are placed in position and the waler support members 17 are affixed in position, as illustrated in Fig. l. The upper waler members 16 are then placed in position and the clamp brackets secured by the adjusting nut. This assembly has been accomplished, using the end studs with the she-bolt form spacers and corresponding she-bolts 11 secured to the studs. As the shebolt form spacers are secured within the holes Z2 of the sheathing 14 provided by the panel 36 and are also nailed to the studding, the studding or panel is rigidly aixed together. in place between the walers and sheathing without nailing. Succeeding panels 37 and 38, as shown in the dotted lines, may be extended endwise to the rst panel 35, and likewise, additional paneling 36', 37' and 38 may be placed above. The form may be continued to be extended likewise, longitudinally or vertically, to provide the necessary length and height of form desired, or likewise partition and/or building structure erected in this manner. When the panels are dismantled, they are dismantled in the reverse order and the waler support member 17 may be retained on the studs 15, as described above, and the she-bolt form spacers 10' may be left in the panels if desired, to assist in re-erection of the forms upon reuse.

Referring to Figs. lO'through 13, there is illustrated` Any additional studding 15' may be shoved trated as being directly affixed to the studding 15 as illustrated in Fig. 3. This particular arrangement is not always necessary since the walers 16 and 16 together With the sheathing 14 are clamped together and alxed to the studding 15 by the clamping bracket 12 threaded on the she-bolt 11 since the projections 21 of the shebolt form spacer are expanded into the sheathing 14. In the particular arrangement to be described, the shebolt form spacer and she-bolt lare assembled to the sheathing 14 as described with reference to Figs. 2, 3, and 4. Instead of having a nail 25 anxing the shebolt form spacer and she-bolt to the studding 15, the nail 25 or a cotter key 40, Fig. 12, may be inserted through the slots 24 of the she-bolt form spacer and through the hole 26 in the she-bolt. If a nail is used, it is clinched over and it may be either a single or double-headed nail. The cotter key 40 may, likewise, be suitably opened or self-opening cotter keys may be used. In this manner, the sheathing 38 as described with reference to Fig. 9 may be assembled to studding 15, as described also with reference to Fig. 9, the difference being that the she-bolt form spacer may be spaced from the studding 15 or the auxiliary intermediate studding 15' where the sheathing is in the form of large sheets of plywood. Likewise, in removing the forms, the nails or cotter keys 40 are detached to permit the shebolts 11 to be detached from the tie rods 19, after which the clamping brackets 12. are returned to their original position, affixing the walers, studding, and sheathing together, and the nail 25' or cotter keys 40 replaced as described above. `In this manner, the concrete forms may be readily stored or reused as they are raised for pouring the successive lifts. n the event that they are entirely dismantled, the she-bolt form spacers 10 may still remain in the sheathing 38 for further reuse and, if still desirable, they can be removed by bending the prongs 21 inwardly to the point that they may be removed from the periphery of the hole 22 for the corresponding she-bolt form spacer in the sheathing.

In the embodiment of Fig. 1l a modified form of shebolt form spacer 10' may be used with conventional forms 41 fabricated from metal sheathing 42. When used in this manner, the radially extending lugs 23 may be welded to the metal sheathing 42. If the metal forms 41 are used without a wood or iiberboard form liner 43, the she-bolt form spacer 10 may be formed without the lugs 2li and the laterally extending projections 21. However, if the form liner is used with the metal sheathing, the conventional she-bolt form spacer may be used and the lugs and prongs 21 are assembled through a hole 22 in the form liner 43 and metal sheathing 42 as previously described with reference to Figs. 2, 3, and 4.

The form liner material 43 may be suitably bolted to the metal sheathing 42 or it is Within the scope of the invention that suitable hardened nails 44 and washers 45, commercially available, may be used to assemble the form liner material 43 to the metal sheathing 42, using a conventional explosive operated type hammer in which the nail is propelled with an explosive charge. When erected in this manner, the point of the nail will project into the metal sheathing 42 since it is preferred to use a nail formed from wire capable of being hardened to penetrate metal or other material. Erected in this manner, the form liner 43 is rmly aixed to the metal sheathing.

Referring to Figs. 12 and 13, there is illustrated another utilization of the she-bolt form spacer of the invention for the erection of a concrete form construction, using large plywood panels of sheathing and the improved she-bolt form spacer. In this construction, the she-bolt form spacers are symmetrically spaced on the panels, as illustrated in Fig. 9, with the exception that the she-bolt form spacers are preferabiyspaced transversely with respect to the studding 15. After the shebolts 11 have been erected in place and secured with cotter keys 40 asdescribed above with Fig. l0 and theclamping brackets, waler support members, and walers being erected as described with reference to Figs. l and 9 and aflixed together, the next successive panel 38 may be assembled. It is preferred to use a securing means 48 as illustrated in Fig. 13 for aiiixing the edges of contiguous panels together as illustrated in Fig. 12. The shank 49 is positioned between the joint of contiguous panels with its head Si) contacting the faces of the panels 38 and 38' contiguous to their respective edges. Since the shank is formed With an eye 51 about the shank between the heads 52 and 53 of a doubleheaded nail 54, the nail is free to be inclined with respect to the face of the stud 15 in which it is affixed so that, when driven completely into the stud, the head 50 forces the edges of the sheathing 38 and 38 to abut the face of the studding' contiguous thereto as illustrated in Fig. l2. Although it is preferred to use an improved form of securing means as illustrated in Fig. 13 in this manner, it is also within the scope of the invention that a commercial form of nail 54, as manufactured by the Sierra Machine Company of Berkeley, California, may also be used without departing from the scope of this invention. This type of nail has a pointed hook portion 55 which is driven into the face of the studding as illustrated, and is also provided with an integral head 56 similar to the head 50 of applicants preferred form of securing means 48. Either of these types of securing means 48 or 54 permits withdrawal from the studding without damage so that the studding may be reused. These securing means also permit the salvaging of the sheathing, since it is not necessary to remove nails which have been secured through the sheathing 38 directly into the edges of the studding. Although it is preferred to erect the panels solely without the use of the securing means 48 or 54, these securing means are advantageous in afxing the contiguous edges of the sheathing to the studding to prevent undue warping of the sheathing. 'I'he successive panels of the form may be erected as described with reference to Fig. l2, and if additional studding 15 are required these may be slid in place as described with reference to Fig. 9. Usually, in the erection of the securing means 48 or 54, they are first loosely mounted over the edge and slightly atiixed to the studding. As the next panel is erected in place and tapped downwardly to compress the edge of the panel where the shank of the securing means crosses, and also to place the panel back of the heads 50 or 56, the securing means may then be firmly aixed in place to draw the edges of the panel in position and securely affix them to the studding.

It is thus evident that there has been disclosed a very simple form construction which may be readily erected without the usual damaging effect caused by the nailing of the sheathing to the studding at the time when it is desired to dismantle or wreck the forms for storage. The only nailing necessary is that required for mounting the support members 17 to the studding and also that required for securing the she-bolt form spacer and she-bolt to the studding. These nails, however, may be readily removed without damaging the studding. Likewise, when the she-bolt form spacers 10 are detached from theA sheathing, this may be readily accomplished by detaching the prongs 21 from the periphery of the holes 22, which causes very little or no damage.

It is thus evident that there has been disclosed a simple form of she-bolt form spacer which may be economically manufactured from light gauge metal of the required strength for the associated she-bolt and the resultant she-bolt is low in cost, and may be readily erected either from a flat blank formed as described on the job or erected in place when fabricated originally in a cylindrical shape. The she-bolt may be readily dismantled from the sheathing for reuse.

It is also evident that there has been disclosed a simple method of erecting forms and/or building structures, partitions and the like, using the conventional she-bolt clamps, waler members, walerrsupport members, studding and sheathing for forms of the ltype as illustrated in Fig. 1 and as also erected by the method as described with reference to Fig. 9, wherein the sheathingis assembled to the studding without nailing them together so that the forms may be quickly assembled and dismantled without the usual damaging effect of nailing. u

Having thus described my invention, it is obvious that various immaterial modifications may be made in the same without departing from the spirit of my invention; hence, I do not wish to be understood as limiting myself to the exact form, construction, arrangement and combination of parts herein shown and described, or uses mentioned. Y

What I claim as new and desire to secure by letters patent is: Y f

1. A form spacer for a she-bolt comprising, a tubular element formed of sheet material and provided at one end withra rst set of circumferentially spaced lugs integral with the said tubular element, each lug of said first set being disposed inwardly toward the longitudinal axis `of the said tubularelement, the end of each lug of the' said first set being provided with an integral projection disposed at right angles to the lug and from .the same side of the lug `as the external surface of the said tubular element, a second set of circumferentially spaced lugs integral with the said tubular element, each lug of said second set extending radially outwardly of the lon- References Cited in the le of this patent UNITED STATES PATENTS 980,480 Bishop Ian. 3, 1911 991,755 Seibert May 9, 1911 1,028,066 Smith May 28, 1912 1,276,354 Hansson Aug. 20, 1918 1,782,897 Hudgin Nov. 25, 1930 2,001,052 Colt May 14, 1935 2,048,151 Williams July 21, 1936 2,116,597 Colt May 10, 1938 2,226,216 Breese Dec. 24, 1940 y2,301,306 McDonald NOV.. 10, 1942 l 2,404,372 Hallock July 23, 1946 2,595,123 VCallan Apr. 29, 1952 2,620,542 Fontaine Dec. 9, 1952' 2,715,760

Kramer Aug. 23, 1955

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