US1212990A - Concrete-insert. - Google Patents

Description

H. B. NEWHALL, Jn. @L H. W. PLEISTER:

CONCRETE INSERT.

APPucATlou min MAY 21. |915.

Patented. Jan. 16,

HENRY B. NEWHALL, JR., 0F PLAINFIELD, AND HENRY NEW JERSEY; SAID PLEISTER ASSIGNOR T0 W. PLEISTER, OF WESTFIELD,

SAID NEWHALL.

CONCRETE-INSERT.

Specification of Letters atent.

ratenteu aan. ie, mit.

Application filed May 21, 1915; Serial No. 29,t7t.

To all whom t may concern: Y

Be it known that we, HENRY B. NEWHALL, Jr., and HENRY W. PLEISTER, citizens of the United States of America, and residing at Plainfield, Union county, New Jersey, and Westfield, Union county, New Jersey, respectively, have invented new and useful Improvements in Concrete-Inserts, of which the following is a specification.

This invention relates to what are known as concrete inserts.

The principal objects of the invention are to lower the cost of production and reduce the weight of such devices without sacrificing the strength or holding qualities of the same. These objects we have accomplished by making the insert in the form of a frame having spaced apart ledges for supporting a fixture support and closed ends which provide in conjunction with a cover which is applied to the frame, a closed chamber above the supporting ledges for the reception of the upper` end of the xture support.

A special feature of the invention is the making of the frame of relatively heavy metal capable of providing the necessary strength and support and the cover of lighter metal which need be strong enough merely to provide a housing over the ledges when casting the concrete. This accomplishes a great saving in weight without sacrificing the strength where needed. Preferably the frame is of malleable iron or steel and the cover is made of sheet iron or steel.

Another feature is the provision of the frame with lugs which can be bent over the edges of the cover to hold the cover in place and a further feature is the provision of other lugs which can be bent out to form laterally extending anchorages. v

Various other features and details of construction will appear as the specification proceeds.

The accompanying drawin illustrates the invention embodied in a pre erred form but it will be understood that changes and modications may be made without departure from the true spirit and scope of the invention.

Figure l, is a perspective view of theV frame or body portion of the insert and the cover detached therefrom. Fig. 2, is a perspective view of the support for the fixture support which rests upon the ledges of the frame. Fig. 3, is a longitudinal substantially central sectional view of the parts as they appear when the insert is installed. Fig. e, 1s a cross sectional view of the same with the anchorage lugs not bent out to final position. l

The body of the device is in the form of a skeleton frame having parallel supporting ledges l0, spaced apart and secured together 1n such spaced apart relation by closed ends 11. This frame is made heavy and strong enough to provide the necessary support for the fixture. The supporting ledges are housed over by a cover 15A which coperates with the closed ends to form a closed chamber 16 above the ledges. In the particular form illustrated the ends have rounded upper shoulders or edges 17 and the cover is correspondingly curved to closely t over said rounded edges.

The cover can be made relatively light since it simply needs to be strong enough to withstand the weight of the concrete which is poured over the insert. Preferably this cover is made of sheet metal and is so bent that it can be sprung down into close-fitting engagement over the closed ends of the frame. This engagement of the cover with the frame will ordinarily be sufiicient to frictionally hold the cover in place but in addition to this, means are preferably provided for positively preventing disengagement of the cover from the frame. The means here disclosed takes the form of upstanding lugs 20 on the ends of the frame, vwhich after the cover is in place therebetween, are bent down over the end edges of the cover, as indicated at 2O'nl in Figs. 3 and 4. Thecover may also be held in place by lugs 21 on the frame bent or riveted over into holes 22 in the cover.

In order to provide the necessary strength and rigidity the frame is preferably made of metal, such as iron or steel and the bending of the holding lugs is provided for by using malleable iron or pressed steel.

Anchorages for the insert are provided in the form of upstanding lugs 25 on the ends of the frame, which, as indicated in Fig. 3, are bent outwardly to form lateral wings or flanges 25".

The frame also will usually be provided with laterally projecting lugs 30, at the sides thereof to receive positioning nails or screws.

In the illustration the fixture support is Y ledges, whereupon the fixture supportingv shown. in the form of abolt4 40, having a head 4:1 seated on the member 42 which rests upon and bridges the supporting ledges 10. Thisfbridgfing member; is adjustable along the ledgesnand provision is herein made for retaining it in its adjusted.`

position by corrugating or roughening the ledges;v as indicated at Sand making said. member with ribs 44 to interfitvwith said abovesaidfledges. The bridging member isthenslippedup over the shank of the bolt ancllutilte'dI over into a position Where it will pass up between'the ledges. After -being pushed 'n up through the slot into position beneath the upraisedhead` of the bolt within the chamber 16,'the bridging member is straightened out into position'bridging the boltwill besustained thereby. Either the head"v or the nnt of the bolt may bel engaged withthe bridging member, 'according to different requirements. -Th'efbridging member may be pjrevidedv with flanges 55 to hold the Y' head of `the bolt against turning.

vThe insert constructed according-to our .invention 'is relatively llight and inexpensive and 'atrthe same time possesses all the necessary strength and durabilitj'f.` The frames and covers maybe assembled at the time of manufacture or at any subsequent time. The" anchorage lugs need not be bent out until ready to install-this saves space in shipping and handling. The covers can be removed when necessary by simply prying Vupthe lugs thatv liold'them iniplace.

permits ofthe substitution of a new cover incase of injury to one cover. i Another advantage 1s ,that the frames VVmay bev fastened tojthe forms withcovers Vremoved allowing the mechanic toV see the .location better and toA properly center the insert.l It may be left in this position until f'ready to pour the concrete when thecovers may be patou.v This also permits ofV the ,copiesv entspannt may beqbtdinea roi This insertion of.v a largel bridging member threaded to receive the bolt and the use of a larger bolt and `bridging member than could be inserted throughthe slot.

What We claim is LA concrete insert comprising a skeleton frame for supporting a hanger and having. lugs on the sides thereof and a cover having openings to receive said lugs, said lugs projecting through said openings in the cover having dovvnturned hooked ends to thereby draw the cover down on the skeleton frame 2. A concrete insert comprising a relatively heavy metal trame having spaced apart supporting ledges, closed ends connecting said ledges in spaced apart relation, and upstanding bendable lugs on said closed ends, an arched sheet metal cover engaging said closed ends and forming in conjunction therewith a closed chamber above the ledges, certain of the upstanding lugs one said closed ends being bent over said cover to hold the same in place and others of said lugs being bent outwardly to form laterally extending anchorages and a fixture support extending up into the closed chamber and supported by the supporting ledges.

3.`A concrete insert comprising a relatively heavy load-supporting skeleton frame open at the top and having supporting ledges spaced apart by a slot extending substantially the full length of the frame and closed ends connecting said ledges in such spaced relation provided with arched upper edges, a relatively light arched cover litted over the closed ends of the frame and bearing on the arched upper edges of said closed ends and thereby braced and supported by Vsaid closed ends, said cover extending down over the sides of the frame and thereby forming in connection with said sides and closed ends a closed chamber above the supporting ledges and upstanding lugs on the closed ends of the frame engaging the ends of the cover to prevent endwise displacement of said cover from the arched supporting edges of the closed ends oi the iframe and adapted further to guide the cover down into proper engagement over the closed ends and sidesof frame.

HENRY B. NEWHALL, Ju. HENRY W. PLEISTER.

Witnesses:

A. M. WILLIAMS, M.`R. RYAN.

ve cents each, by addressing the Commissioner of Patents, Washington ,gD. C.

Correction in Leiters Patent No. 1,212,990.

It is hereby certified that Letters Patent No. 1,212,990, granted J anuary 16,

1917, upon the application of Henry Newhall, Jr., of Plainfield, and Henry W. Pleister, of Westfield, New Jersey, for an improvement in Concrete Inserts, Were erroneously issued to Henry B. Newhall, Jr., as owner of the entire interest in said invention, Whereas said Letters Patent should have been issued to said Henry B. Newhall, J 1'., and Henry B. Newhall, ofLittZeton, New Hampshire, as assignee, jointly, as shown by the records of assignments in this ofi-ice; yand that the said Letters Patent. should be read with this correction therein that the sanne may conform to the record of the ease in the Patent Office.

Signed and sealed this 20th day of March, A. D., 1917.

[SEAL] F. W. H. CLAY,

Acting Commissioner of Patente.

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