US1737779A - Box-strapping device - Google Patents

Description

1929. c. P. STANBROUGH 1,737,779

BOX STRAPPING DEVICE Filed Aug. 3, 1928 INVENTOR U.R Sim brow 12 BY qwmm ATTORNEY Patented Dec. 3, 1929 CLARENCE P. STANIBROUGH,

OF STOCKTON, CALIFORNIA BOX-STRAPPING DEVICE Application filed August 3, 1928. Serial No. 297,307.

This invention relates to reinforcing-straps for boxes, crates, bales, etc., my principal object being to provide a strap, a clamping buckle associated therewith and adapted to be first fastened to one end of the strap and to be then engaged with the other end; and a tool for drawing the ends of the strap toward each other so that the desired connection with the buckle can be made. A further object is to provide a tool for the purpose of such a nature that almost unlimited pressure may be easily applied to the strap so that it may be firmly cinched about the box.

Another object is to provide a strap-clamping means and a tool for the above named purpose, of extremely simple, cheap and easily operated nature, and which may be readily used in connection with a box or other container of any shape.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

In the drawings similar characters of reference indicate corresponding parts in the several views.

Fig. 1 is a perspective outline of a box showing a strap after being cinched about the 3?) same by means of my improved tool.

Fig. 2 is an enlarged fragmentary perspective showing a clamped joint or connection.

Fig. 3 is a sectional elevation of the strap and buckle showing the tool associated therewith to draw one end of the strap toward the buckle.

Fig. 4: is an end view of the tool and strap.

Fig. 5 is a perspective of the clamping buckle detached.

Referring now more particularly to the characters of reference on the drawings, the strap itself is a continuous length 1 of flexible metal, provided throughout its length with somewhat closely spaced holes 2.

The buckle comprises a base plate 3, normally upstanding end lugs 4 and normally upstanding side flanges 5; the distance between the flanges being ample to take a strap q of any width likely to be used.

WVhen desired to place the strap about a box 6, the strap is cut to the approximate length and the buckleis then applied to one end of the strap by placing the latter over the plate 3 and projecting one of the end lugs 4 through an adjacent hole 2. This lug is then bent over and cinched down. A special tool is then used to draw the opposite end of the strap toward the buckle so that the other end lug may be engaged with a hole in said end of the strap.

This tool comprises a rigid fiat shank 7 having on one end a relatively pointed prong 8 adapted to enter a hole in the strap. This prong is longitudinally alined with the shank,

-which adjacent the prong is formed with a transverse loop or bend 9. On one side edge near the prong the shank is provided with rounded notches 10 adapted to be detachably engaged with the transverse hooked end 11 of a link or arm 12. This arm at its opposite end has a down turned prong 13 of a size'to fit any hole 2. The face of this prong nearest the shank has a transverse notch 14c near its tip to engage the metal of the strap about the hole to prevent slipping; while the prong 8 has a similarly disposed notch 15 in the side thereof facing the prong 13. A light chain 16 preferably connects the shank 7 and the arm to maintain these parts from undue separation without interfering with the relative freedom of operative movement.

In operation the shank is manipulated so that its prong engages the same hole as that through which the cinched over-buckle lug is projecting, the notches 10 facing away from the outer end of the buckle. The hooked end of the arm is then engaged with one of said notches, the shank is swung forward or toward the free end of the strap about the prong 8 as an axis, and the prong 13 is then engaged with an adjacent one of the holes 2 in said free end.

The shank which is practically a level fulcrumed at the prong 8, is then pulled in the opposite direction causing the strap ends to be moved toward each other. When the lever is thus moved as far as convenient, even is sufficiently thinner than the extent of the orifice lengthwise of the strap as to permit of the insertion of a stretching tool in said orifice behind the lug.

In testimony whereof I afiix my signature.

CLARENCE P. STANBROUGH.

the strap; While the side flanges 5 arelsimi-v. V larly hammered over-thus completing'the joint or connection.

The provision of the transverse loop 1n the lever permits the free" end of the strap passing therethrough as it is being pulled, and avoids the latter from being deflected laterally by'engagement With the lever. The side flanges when bent over come close together -a's shown,so as to enable a drop or two of sealing solder to be applied over the joint if desired.

From the foregoing description it will be readily seen that 'I have produced such a' device as substantially fulfills the'objects of the invention as set forth herein.

Vhile' this specifica'tion'sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as define d by the appended claims. Having thus described my invention What I clalm as new and useful and desire to secure by Letters Patent is:

1. A box strapping apparatus comprising a strap to extend about a box, a buckle sepa: rate from and adapted to be attaehedto one end of the strap, and a normally upstanding lug on theouter end of the buckle beyond the strap; saidstrap at its other end having i: longitudinally spaced orifices for engagement with said lug.

2. A box strapping apparatus comprising 1 a strap to extend about a box, and provided with longitudinally spaced orifices at'its end portions, and a buckle to be clamped onto the strap ends and including a base plate to project under one'end of the strap, and normally upstandinglngs'on the 'endsof the buckle, one of said lugs being adapted to project through an orifice in the strap-end thereabove While the other .lug is disposed? therebeyond to engage an OIlfiCG in the other strap-end, said lugs being adapted to be cinched over when thus-projected throughr said orifices.

3. A structure as in claim 2, with normally upstanding side flanges 'formed'with and along the plate and between which the strap extends, said flanges being adapted to be bent overtoWard each other toclanipingly engage both strap ends;

4. A structure as in claim 2, in which said" 1 one lug is disposed at the end'of the orifice nearesttheadJacent end of the" strap, and"

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