US1554029A

US1554029A - Aligner-bar-engaging bracket for concrete forms

Info

Publication number: US1554029A
Application number: US567528A
Authority: US
Inventors: Oscar B Pulis
Original assignee: Metal Forms Corp
Current assignee: Metal Forms Corp
Priority date: 1922-06-12
Filing date: 1922-06-12
Publication date: 1925-09-15
Anticipated expiration: 1942-09-15

Description

2 Sheets-Sheet 1 Sept. 15, 1925.

O. B. PULlS ALIGNER BAR ENGAGING BRACKET FOR CONCRETE FORMS Filed vJune 12. 1922 Sept. l5, 1925. 1,554,029

o. B. PuLls ALIGNER BAR ENGAGING BRACKET FOR CONCRETE FORMS Filed June 12, 1922 2 Sheets-Sheet 2 ,13K @i I? A 0 M 9" 0\ g Inventor:

i O. B. PuZS Bj @fw/@Mdm Afromeys ,Patented Sept. 15, 1925 UNITED STATES PATEN'I" OFFICE.

OSCAR B. '.PU'IJIS, OF MILWAUKEE, WISCO'N SIN, AS'SIGNOR TO METAL FORMS CORPORA TION, OF MILWAUKEE, WISCONSIN, A CORPORATION. fr

ALIGNER-BAR-ENGAGING BRACKET: CONCRETE FORMS.

Application led June 12, 1922, Serial No. 567,528.

To all whom t may concern.'

Be it known that I, OSCAR B. Punts, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Aligner- Bar-Engaging Brackets for Concrete Forms, of which the following is a specification.

It is now quite common practice in con` crete construction work to fabricate 'forms by assembling a number yof standardized form units and locking them together in the required relation to each other. For straight work these form units may be conveniently made rectangular in shape, and they are ordinarily assembled in superposed horizontal rows. The abutting edges of the assembled form are securely locked together, and when a large panel is formed it is desirable to provide brace or aligner bars at the back of the panel to prevent the panel from bulging or giving away at places under the heavy pressure of the plastic concrete.

lVith this consideration in view, the 4object of the present invention hasbeen to provide a novel form of bracket for securing the brace or aligner bars to the rows of form units. Great flexibility is necessary in the assembling of these units to meetthe different re'- quirements, and the bracket is detachable so that it can either be applied to the form unit or omitted, as may be necessary or desired.

Among the further objects of the invention is to provide an aligner bar engaging bracket of this character which is compara tively simple and inexpensive in its Vconstruction, which can be readily applied to the form unit or detached therefrom, and which will hold the aligner bar securely in position against the back of the unit.

For the purpose of illustrating the invention, one particular embodiment thereof has been shown on the drawings and will be described in detail, although it will be understood that many modications and changes can be made in the details of construction without departing 'in any manner from the spirit of the invention. Y v` li .erll iS .t9 be he@ t@ the following description and accompanying drawings, in which, v F lgure l 1s an elevation showing an assemblage of four lstandard rectangular form units together with associated horizontal and vertical aligner bars, the form units being illustrated by dotted lines since they form no part of the present invention, and the horizontal aligner bars being shown as attached to the form units by means of brackets which are constructedl in accordance with the invention.

Figure 2 is an enlarged elevation of one ofthe brackets, showing the same as engaging the form aligning bar and as applied to a form unit.

Figure 3 is an edge View of the bracket member, showing the same in operative position.

Figure 4 is a view similar to Figure l, showing a bracket member which is of double size and is intended to engage the overlapping ends of a `pair of aligner or brace bars.

Figures 5 and 6 are detail views showing a modied form of the invention in which the fastening members for securing the brackets in position are carried by the brackets so that they are not liable to be misplaced or lost.

Corresponding and like parts are referred to in the following description and indicated on all of the views of the drawings by like reference characters.

Referring to the drawings, and more particularly to Figure V1, the reference char-- acters A designate standard rectangular form units which are of a conventional and well known construction and form no part of the present invention. These standard form units are adapted to be assembled in dierent relations to meet diierent requirements, and for forming a wall they are assembled in a panel comprising superposed horizontal rows of the units. A panel comprising four of the units is shown for illustrative purposes. The specific construction o the unitsthemselves is not material, although it may be explained that 'each of the units A comprises a sheet metal body plate 1 which is sllirounded by a marginal ange prordd, by angle iron strips 2, M

Each of the units is also provided With a T iron strip 3 extending transversely across the back thereof in one direction at substantially the center of Vvthe unit. These intermediate stitiiening strips 3 provide convenient outstanding flanges for the attachment of the .brackets `or clamps of the present invention. y

In order to prevent bulging of the panel which is formed jby assembling the .units A, horizontal aligner or brace bars 4 extend along the horizontal rows of the units at the back thereof, being in direct engagement with the orm 1un`its,-and these horizontalaligner bars 4 are in turn braced at suitable intervals by -vertical" fbars 5. yThese aligner or brace bars lmay be formed .of `any suitable material. 'Either Wooden barsy or any desired standard sections ot structural steel, such as angle or channel iron, -may be used. `One set of the intersecting aligner `or brace bars, in the presen-t instance the Ihorizontal 'bars 4, are attached directly Ato the form units A, -Wlhile the other set of bars, in

l the present instance-fthe vertical bars 5, vare secured to the 4"horizontal 'bars 'a-tytheir `ioints o-intersection. For this l.purpose any suitable rclamps vsuch as @those indicated -at :6 may be used. These clamps are in theformioii. U shaped baiils which straddle the vertical bars -5 andengage `the' horizontal gbars 4,Lsaid=bails being provided at their outer ends with :ecc-entries er camsf? which .can be tightened to draw the aligner bars tightly ltogether at their `points off intersection. A rigid .backing drame is thus provided ttor holding the panel of assembled nuits A rigidly in position and preventing -any pos- :sibile bulging thereof.

The brackets B forattaching the horizontal aligner-bars 4to thehorizontalfrows of units Af prefer-ably have aasirbstantiall-y U shaped formation so that .they straddle :the *bars* The free ends `of ithe 4U shaped brackets B. detae'habiyv .engage the .stiiening A.ila-ngesf of the units and a .cam or Wedge means is providedf-tor bringing the horizon- -ta'l bars into a ilirm engagement with `:the units. For this purpose the .ends ott the iU shaped bracket` areI proyided with slots lwhich are adapted \to register with corresponding slots S8 in the stiflening flange ,3 and-to .receive loekingwedges').

In-.the particular term .cai bracket FB which Yhas been illustrated, the arms .orf the bracket are bfurcated so lfthaftwthey a'it over ,and straddle the :stiftening rib :The brackets may bev conveniently .constructed, iMusltrated, by intenposing 1an, intermediate Aor iiiller pllate it@ betweenatheonter end ypont-ions off al pair bf LU .shaped V.plates 1'1, fthe three thicknesses being fastened together in-any suitable-mann-er .as :means of therivets-il. "The tree ends Lot V.the` bracket @arms thus have a fbitu-re'ated.-.gtormatonso that they can straddle the stiffening flange 3 of the form units, as indicated quite clearly by Figure 3. Vhen the Wedge members 9 are driven in position the bracket B is caused to tightly engage the aligner bar 4 and draw it into a lir-m engagement with the back of the form `unit A.

i For use in splicing the .ends of a pair of horizontal bars 4, a double size bracket may be used, such `as that yindicated at C on Figure l, and illustrated in detail by'Figure 4.` The ,ends of the tWo horizontal bars which are to be spliced are permitted to overlap and areengaged by tvv-o of these double size brackets C. The brackets C have substantially the same construction as the brackets B, but are merely made suiiciently large te receive two off the Aaligner bars 4. It Wijlfl be -noted lt'hat'the stiffen'ing flange 3 of each ot the form units A is Vprovided with three or -moreof the slots v8, and these slots are so positioned that either `a small bracket B or a large bracket 1C can. be

readily applied to ythe unit. v

A slight modification is illustrated by Figures 5 and 6, in which the bracket `or clamp membersy are shown as provided with the 'fastening means @tor securing .them `to :the form units. The bracket member d) has substantially the same construction kas Athe bracket member B, and Ais adapted :to :be ap.- --plied to .the 1aligner bar and form unit in t-he same'manner. Each side of Athe bracket D is provided With a swinging arm 118, which is pivotally -monnted ait l-4'between .a pair of outstanding ears 1'5. rThe lswingnigend lof :the Yarin is provided. with .a finger piece y16 and also with a. Wedge shaped finger 17 which is adapted to be swung :through the .aligning :slots oit the Abracket member Iand stitilening :flange .of the form unit. The Wedge locking element is thus .carried by the bracket member so I.that'it is always in position for use, and there is rno .danger ,of the Wedge member A.becoming accidentally misplaced or lost. if `desir-ed .or necessary `a slot or loose joint may be provided wat the pivotal connection 14 so that there Will be nothing to -.prev en`t 'a proper functioning of the Wedge member when it his sw-ung yinto opera-tive position. v

It will be obvious that these aligner bar engaging brackets can be employed intonnection with the panel-s or units which are utilized .vin making lcircular,v curved ,or 1`- gular walls, and that the Aaligner bars themselves may .either kbe ,comprised of Weoden :bars or ,any fs 'tabletypebfmeta1bar, .Such as vof angle iron .lorffohannel iron 'members- Having thus described fnveetiennhat I l,claim as new and vdesire to .eacute .by Letters Ratent is,

1. Thereombfnaton with ,a :unit and an aligner bar, of a U.-.isharebraeketstrad @tiling the Y.e.1,,a1erbera .and estantes bers for positively attaching the respective arms of the U-shaped bracket to the unit and at the same time forcibly dravving the bracket toward the unit to clamp the aligner bar in position. Y

2. The combination with a form unit and an aligner bar, of a U-shaped bracket straddling the aligner bar, the unit and both arms of the bracket being formed with portions which overlap and are provided with corresponding` openings, and keys insertable through the openings to fasten the respectiveA arms of the bracket to the unit.

3. The combination with a form unit provided With a flange, an aligner bar, a bracket engaging the aligner bar and having an overlapping and sliding engagement with the flange, and Wedge means for securing the bracket to the flange and at the same time forcibly sliding it relative thereto to clamp the aligner bar in position.

4. The combination With a form unit, an aligner bar, a bracket engaging the aligner bar and having an overlapping engagement with a portion of the form unit, said overlapping portions being provided With corresponding openings, fastening keys insertable through the said openings, and swinging members mounted upon one of the members and carrying the keys.

5. The combination with a form unit constructed with a flange, an aligner bar, a U- shaped bracket straddlingthe aligner' bar and having the arms thereof in an overlapping and sliding engagement With the flange of the unit, the flange and arms of the bracket being formed with corresponding openings, and pivotally mounted keys carried by the brackets and insertable through the openings to secure the brackets in position.

6. The combination with a form unit having an outstanding flange, of an aligner bar engaging bracket having a bifurcated portion fitting over the flange, and means for detachably securing the said bifurcated portion of the bracket to the flange.

7. The combination with a form unit having an outstanding flange, of an aligner bar engaging bracket having a bifurcated portion adapted to lit over the flange, the bifurcated portion of the flange being formed With corresponding openings, and locking means insertable through the corresponding openings to detachably secure the bracket to the form unit.

8. The combination With a form unit having an outstanding flange, a U shaped bracket adapted to straddle an aligner bar and having bifurcated ends adapted to lit over the flange of the form unit, and means for detachably securing the bifurcated ends of the bracket to the flange of the form unit.

9. The combination with a form unit having an outstanding flange, of a U shaped bracket adapted to straddle an aligner barl and having bifurcated ends adapted to fit over the flange, the flange and arms of the bifurcations being correspondingly slotted, and Wedge members insertable through the slots for detachably securing the bracket to the form unit.

In testimony whereof I affix my signature.

OSCAR B. PULIS.