US1743811A - Concrete-form-binding tool - Google Patents

Description

Jan. 14, 1930. w. A. EULL ET A1.

' CONCRETE FORM BINDING TooL Filed Dec. 9, 1927 L ....n f i, f

Patented Jan. 14, 1930 UNITED STATES lnxreN'rv OFFICE WILLIAM A. EULL, OF LOS ANGELES, AN D* VERNON It. MACKIE, OIEv SOUTH IPASAlDIENA,-m

CALIFORNIA CONCRETE-FORM-BINDING TOOL Application led December 9, 1927. Serial No. 238,985.

Our invention pertains to wire and strap iron snubbing brackets for binding concrete structural forms inrigid position, and has for its objects, among others, to provide a tool which can be easily and quickly placed by one man; that does not mar the lumber; by which the binding wire or strap may be tightened to any necessary degree and that may be locked in taut position instantly; that is simple in operation, durable, economical of employees time, and cheap to manufacture.

These objects we attain by the provision, formation and assemblage of the members and parts illustrated inthe accompanying drawings, in which Figure l is a side elevation of the complete tool.

Figure 2 shows application of the tool in two positions on the form work of a concrete Y Y2c wall.

Figure 3 is a cross section of the operating bracket and lever handle in closed position (A), and open position (B), and the gripping members therein.

Referring more particularly t0 the drawlngs: I

1 indicates the operating bracket of the tool, and 2 indicates a companion bracket for the fixed end of the wire or strap.

3 indicates a hollow lever handle, pivoted within rearwardly projecting Iianges of bracket 1, on pivot 5.

4 indicates al rectangular transverse block riveted to handle 3 to provide an integral 35 part thereof.

6 indicates a rectangular transversely positioned block eccentrically revoluble on pivot 5 and adapted to co-act with block 4 in gripping action.

7 indicates a wire or strap adapted to hold outside and inside wales of a concrete form in rigid position toprevent spreading.

8 indicates transverse slots stamped in the rear face of bracket 2, adapted to allow a` metal strap to pass therethrough for snubbing purposes, the metal between said slots being stamped to form a groove exterior to Vthe body of the bracket adapted to receive wire 7 therethrough for snubbing purposes.

s 9 indicates a resilient tongue formed crescentically to project inwardly from the surface of any side face ofthe brackets, adapted to hold the bracket in position on the Wale while the other bracket and binding wire or l tapeare being positioned.

4 and 6 (not shown) -to afford safer gripping y for wire, and to avoid shearing the same.

Y The brackets herein described are intended to be placed atintervals of approximately 24 inches on the horizontal wales, and to avoid slde pullor twisting effects thereby it is best to stagger them, i. e. that the bindingwire or strap be placed above and below the wale alternately. The position ofthe lever handle 1n closed position, up or down, is shown in Figure 2.

The procedure in proper use of this tool isto apply the binding wire or strap (as the case maybe) and snub-one end in vbracket 2,

through groove or slots 8; place bracket 2 on a wale where tongue 9 will hold itin place while the other end of strap y"I is passedthrough the form to bracket 1 which has been positioned kon the corresponding wale. The loose end of strap 7 is passed between gripping members 4 and 6 while lever 3 is in open position. K one hand on the exposed end of strap 7 lever handle 3 is moved from open to closed position, this movement serving to automatically grip strap 7. As the movement progresses the slack or strap 7 is taken up to.

a maximum of the diameter of the circle described by the contact points of members 4 and 6. y

Any degree of tension on the strap less than the maximum isreadily' controlled by the While traction is made by- Cil Seo

amount of hand traction when the movement of handle 3 is begun.

Reversal of the above outlined process will serve to release the traction on strap 7 and the brackets may be removed, although it is more expeditious to cut the strap at convenient points and then clear the brackets.

It will be apparent that various changes and modilications may be resorted to without departing from the spirit and scope of our invention, and we do not wish to limit ourselves to the -fexactdisclosures herein. p

Having thus disclosed our invention and its mode of operation, we claim as new and Vseek Letters VPatent Aof the United States upon: f Y

l. A concrete form-binding tool ofthe character disclosed, comprising two rectangular U shaped brackets adapted to span theedge of a wale; one of said brackets provided with transverse .slots adapted to allow :snubbing of a wire or strap therein; resilient :means of maintaining said brackets 'upon Aa wale compmsing a tongue inwardly pro- ]ect1ng from the face `of said brackets; the

other bracket Iprovided witha lever .arm ;piv

oted in outward-ly projecting :lianges thereon; means for gripping a .binding wire or strap within said .handlecomprislng a flat surface integral with said arm, land .a rectangular eccentrically mounted transverse member adapted to Contact with said Iintegral v flat surface in fgrippingfaction, said gripping meansbeing positionedrelative to said lever arm pivot to tighten and snub .said wire or strap while 'said lever arm moves from open toclosed position; and means..forlockingsaid lever arm in closed 'position. j

"2. A concrete form-"binding `tool of "the character disclosed comprising jfbrackets .adapted to span the edge ofa'wale, one of said brackets being providedwithtransverse slots adapted to allow snubbing ofa wireor strap therein; the other bracket being providedwith alever :arm p'ivoted in outwardly projecting flanges thereon; means for jgrippinof and bind-'ing a wireorstrap withinsaid vhan le, Icomprising a flat fsurface integral withsaid arm, and an eccenltr-icallyY mounted transverse member adapted to 'contact with said integral iiat Vsurface vin gripping action, said gripping means 'being positioned relative -to said lever 'armboth to `tighten and snub-said wireor strap while said tlever arm movesfrom an -open to a closed position.

` A Iconcrete form-binding tool' of the 'chara'c'ter fdisclosed comprising brackets 'adapted to span the-edgev'ofa wale, one of `said 'brackets being provided with transverse yslots adapted to allow snubbingof a wire'or strap "thereingjthe Aother kbracket being pro- Y vided with a lever arm l-pivoted `in -`outwardly projecting flanges thereon; means for-gr1p .pmg'andfbindrngfa wire or strap-.wlthin said handle,`1comprising a flat surface `integral with `said arm, an eccentrically mounted Y transverse member adapted to contact'with :said iintegral flat 'surface in .gripping action, said grippingmeansfbeingpositionedfrelative to said :lever .arm both `to Jtighten Vand snub said wire or strap While said lever arm moves from an open to a closed position, and means

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