US2108107A

US2108107A - Means for anchoring structural elements to concrete supporting bodies

Info

Publication number: US2108107A
Application number: US52581A
Authority: US
Inventors: Wees Russell J De
Original assignee: Individual
Current assignee: Individual
Priority date: 1935-12-02
Filing date: 1935-12-02
Publication date: 1938-02-15
Anticipated expiration: 1955-02-15

Description

Feb. 15, was. R J 0;; WE 210mm MEANS FOR ANCHORING STRUCTURAL ELEMENTS TO CONCRETE SUPPORTING BODIES Filed Dec. 2, 1935 j w 1 155 INVENTOR: filiwaseZZ Weq 11 ATTORNEY.

Patented Feb. 15, 1938 UNITED STATES PATET OFFHCE MEANS FOR ANCHORING STRUCTURAL ELEMENTS T BODIES GONCRETE SUPPORTING 2 Claims.

This invention relates to means for anchoring structural elements to concrete supporting bodies.

It has more particularly to do with improving the means of anchorage for masonry, in outside 5 wall construction of buildings and the like, and also for interior wall and ceiling elements, floors, et cetera.

In concrete supporting body and frame structures it is a common practice to embed within the body of concrete a metal channel-formed insert of angular shouldered cross section to function as a lining and reinforcement of an undercut continuous groove or slot in which anchoring or tie members having counterpart or otherwise 5 formed engaging portions are received and ad justably supported, said anchoring or tie members being provided in or on their portions outside of said undercut or interiorly shouldered groove or slot with means for securing the masonry or other wall or ceiling elements, and the like.

The customary procedure in applying the lining inserts, which are usually formed of comparatively thin gauge sheet metal of just sufficient inherent rigidity to retain the shape in which the device is formed under reasonably normal conditions and handling, is to nail or otherwise secure the device to the ordinary form board usually employed in pouring and packing the con crete material in forming the structure, that is to say, with the open side of the device disposed against the face of the form board with the object of preventing the concrete material from entering the interior of device.

Owing to the relatively rough character of concrete construction work it is difficult to maintain a sufficiently tight contact of the ordinary lining insert with the face of the concrete form board at all points throughout its length, due to the irregularities in the surface of the board and also to the distortion and deformation of the insert in the pouring and tamping of the concrete material, with the deleterious result that the concrete material enters and clogs the channel designed to be produced, and obviously, there is incurred the added expense of removing the material irom the channel after the form board is removed, which operation requires not only time, but care and skill. So, too, without close supervision, there is the liability of some mechanics to shirk the work of removing the material and should there be an obstruction at the point where an anchoring element is to be applied there is the possibility that the anchoring element will be omitted when the wall masonry element should 55 be'tied in place or in the placing of other wall or ceiling elements. Furthermore, even if the sheet metal channeled insert is tightened throughout its length against the face of the concrete form board, it sometimes happens that the side walls of the insert are pressed inwardly to such degree of deformation that it is diflicult or even practically impossible to apply an anchoring element in the region necessary for the tying of a masonry element or other wall or ceiling element, as the case may be, and to avoid which happening it has been found necessary to make the insert of heavier gauge sheet metal than would otherwise be required.

The principal object of the present invention is to overcome the disadvantages herein noted and permit constructing the channeled metal insert of relatively lighter gauge sheet metal than heretofore used; to provide not only for preventing the entrance of concrete material into the channel but at the same time prevent collapsing of the side walls of the insert during the pouring of the concrete material as well as in the handling of the insert prior to and while it is being nailed or otherwise attached to the concrete form board, and particularly facilitating the cutting of the inserts into different lengths for the work required without liability of deforming the insert; and to attain certain other objects and advantages as will hereinafter more fully appear in the following description.

The invention consists in the novel general provision of a filler member of a removable character for channeled metal inserts for the purposes described, and in the parts and combinations and arrangements of parts hereinafter specified and afterwards set forth with particularity in the appended claims.

In the accompanying drawing forming part of the specification and illustrating practical adaptations of the invention,

Figure 1 is a fragmentary section of a concrete structural body with a channeled lining insert therein and showing the concrete form board as cooperatively applied;

Figure 2 is a view similar to Figure l, but with the concrete form board and filler member removed and an anchoring element shown as applied to the insert-lined channel of the concrete body and the application of the anchoring element to the positioned'masonry element;

Figure 3 is a perspective view of a fragmentary portion of the channeled lining insert, detached;

Figure 4 is a perspective view of a fragmentary portion of the filler member for the channeled lining insert, detached;

Figure 5 is a perspective view of one preferred form of anchoring element, detached;

Figure 6 is a perspective view of a modified form of anchoring element, detached; and

Figure '7 is a fragmentary view, in cross section, showing a modification of the channeled lining insert, filler member, and manner of attaching the concrete form board,

Referring now more particularly to Figures l to 5, inclusive, of the drawing, the numeral l designates an ordinary concrete structural body having embedded therein a channeled sheet metal insert 2, which latter, as shown in Figures 1, 2 and 3, is formed rectangularly, as at 3, with one of its longer sides slotted, as at 3, and at opposite sides of the slot provided with parallel perpendicular flanges 5.

At intervals, longitudinally and at the middle of the body portion of the insert 2, there is provided a series of apertures ii for the reception of nails, screws or other securing elements, as will be later more fully described, said apertures eing alined medially with respect to the slot 4 of the insert.

When the insert 2 is embedded in the concrete body I (see Figure 2) it constitutes a lining and reinforcement for an undercut groove or slot in the concrete body, the preferred practical form thereof being substantially T-shape, as shown, and the preferred form of anchor element, as shown at l, in Figures 2 and 5, having a counterpart neck and head portion to fit in said insert 2 relatively closely and with only slight looseness to permit insertion of the anchor element edgewise through the slot 5 to place the head portion 8 within the rectangular portion 3 of the insert 2 and the turning of the element l' until its head portion 3 is flatwise transversely of said rectangular portion 3 and its neck portion 9 is correspondingly positioned between the flanges 5 of the insert 2, as shown in Figure 2.

The outer portion of the anchor element 7 which engages the masonry element, indicated at It] in Figure 2, may be of any desired or approved form. However, for more general purposes, and as found practical, the anchor element 1 is preferably made substantially I-shape as shown in Figures 2 and 5, that is to say, with both end portions alike, whereby either end portion may be secured in the channeled lining insert 2 and, too, either end portion may be utilized for tying the masonry element ill or other wall or ceiling element in place, as the case may be, to the concrete body i.

In Figure 6 a modification of the anchor element is shown, wherein there is a head portion i3 connected by a neck portion 9 to a body plate or enlargement H provided at its end with oppositely turned lugs or flanges i2, i3, respectively, for attachment to the masonry element or other wall or ceiling element to be tied to the concrete body, the head portion 8 and neck portion 9 obviously, fitting the channeled lining inert 2 in the same manner as the portions 3 and 9 of the first described anchor element 1.

Obviously, other modifications of the anchor element may be made and substituted for those herein illustrated within the purview of the present invention, the principal object of which is to prevent the concrete material from entering the channeled lining insert and/or the collapsing and deformation of the insert in the preliminary handling thereof as well as in its application to the concrete form board in producing the concrete body in which the insert is placed.

Prior to its attachment to the concrete form board, indicated at M, in Figure l, a wooden or other removable filler member is placed in the slotted portion of the channeled lining insert 2. Preferably, as shown, the filler member, indicated by the numeral [5, is made of wood and rectangular in cross section (see Figure 4) and fitted into the insert 2 as shown in Figure 1, said filler member l5 being of transverse or crosssectional dimensions to fit tightly between the flanges 5 of the insert 2 by being forced into place but without appreciable spreading of said flanges 5 or causing other deformation of the insert, and, when in place, one of the narrower sides of the filler member abuts the inner face of the body plate portion of the insert 2 and the opposite narrower side is flush with the margins of the flanges 5.

The channeled metal insert 2, with the filler member l5 placed therein, is applied to the concrete form board i l by driving nails l6 through the apertures 5 in the body plate portion of the insert, into and through the filler member l5, and into the form board 14 (see Figure l), the apertures 6 being of larger diameter, respectively, than the heads of the nails 16, whereby, when the concrete material has been poured and the body 2 set, and the form board is removed, the filler member I5 is most invariably withdrawn from the insert 2 with the form board. However, should the filler member 5, for any reason stick in the insert 2 and the form board I4 be pulled from the nails i6 while it is being removed from the concrete body i, the filler member I5 is readily removed afterwards from the insert 2 by applying a gripping tool of some kind to the protruding portions of the nails 56 or by other means applied directly to the filler member.

As shown in Figure '7, the channeled sheet metal insert 2 may be modified by rebending or folding the metal at the bases of the flanges 5, as at ll, thereby producing shoulders against which a modified filler member W is made to abut when placed in between said flanges 5. In this modification less wood or other material is required for the filler member and yet a substantial reinforcement is provided to prevent collapsing or deformation of the insert and it is just as eifective in preventing entrance of the concrete material into the channel of the insert as in the applica tion of the filler member 15 as shown in Figure 1. It is noted that in this modification illustrated in Figure 7 the nail H3 is driven through the form board 14 into the filler member I5 Obviously, when the form board is withdrawn from the concrete body in which the insert 2 is embedded, as in Figure l, the filler member i5 is most invariably withdrawn from the insert with the form board, but should the filler member happen to stick and the nails 16 be pulled therefrom, said filler member may be readily removed by a separate operation,

The devices illustrated may be modified in many respects within the spirit and scope of the invention as defined in the appended claims. The invention, therefore, is not limited to the specific constructions and arrangements shown in the accompanying drawing.

What is claimed is:

1. An insert for forming a continuous groove or channel in a concrete structure, said insert consisting of a shell of substantial T-shape, one side thereof having a longitudinal opening, a filler element of rectangular cross-section fitted in said opening to normally close said opening and prevent deformation of the insert.

2. An insert for forming a continuous groove or channel in concrete structures, said insert comprising a shell-like rectangular body portion having a longitudinal slot in one side, perpendicular flanges at each side of the slot, and a plurality of apertures in the opposite side of the body, said apertures alined medially with respect to the slot, an elongated wooden filler element conformably receivable in said slot, said filler element adapted to be attached to a form board by nailing through said apertures, and said apertures of larger diameter than the nail heads.

RUSSELL J. DE WEES.