US1320220A - Box-strap - Google Patents

Description

P. J-. FORBES.-

BOX STRAP. APPLICATION FILED 0CT.28, I9I8.

Patented Oct. 28, 1919.

WITNESSES ATTORNEYS PHILIP JONES FORBES, O1? BROOKLYN, NEW YORK.

BOX-STRAP.

Specification of Letters Patent.

Patented Oct. 28, 1919.

Application filed October 28, 1918. Serial No. 260,032.

To all whom it may concern:

Be it known that I, PHILIP J Forums, a citizen of the United States, and a resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Box-Strap, of which the following is a full, clear, and exactdescription.

The inventionrelates to metal straps fastened around packing boxes adjacent the ends thereof to securely bind the box memhers in place.

The object of the inventionis to provide a new and improved box strap provided with nail holes to permit of quickly driving the nails through the holes into the material of the box to fasten the strap in place. Another object is to provide means for guiding the nail to the hole thus facilitating the operation of nailing the strap to the box. Another object is to provide the strap with fractured bosses for the passage of the nails and adapted to embed themselves in the wood or' other material of which the box is made thus aiding the nails in holding the strap in place on the box. Another object is to eliminate rough or rugged edges on the walls of the fractured bosses to permit the operator to conveniently handle the strap during the handlingoperation and without danger of lace-rating or tearing the skin on the fingers. Another object is to permit of cheaply providing the box strap with the improved fractured bosses.

With these and other objects in view the invention consists of certain novel features of construction as hereinafter shown and described and then specifically pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Fig. 5 is a similar view of the box strap in position between the dies for smoothing down the ragged edges of the walls of the bosses; and

Fig. 6 is a sectional side elevation of the box strap as applied to a box.

The metal strap 10 is provided with spaced struck-up fractured bosses 11 forming nail holes for nails 12 for fastening the strap to the box 13 by driving such nails through the bosses 11 into the box material, as plainly indicated in Fig. 6. It will be noticed that the bosses 11 embed themselves in the boards or other material of which the box 13 is made so that the bosses assist the nails in holding'the straplO in position on the box. The struck-up bosses 11 are conical and form guiding means for the nails 12 to permit the operator to quickly engage the nails with the bosses on driving the same through the bosses into the box material.

In order to form the bosses 11 on the box strap 10 the latter is passed between two rollers 20, 21, of which the roller 20 is provided on its peripheral face with a conical die 22 for forming the boss 11 and fracturing the same at its apex, the boss and die being adapted to pass into a recess 23 formed in the peripheral face of the other roller 21. It will be noticed that the boss 11 formed by the die 22 has a rugged edge 25, as plainly indicated in Fig. 2, but such rugged edge is undesirable as it is liable to injure the person who handles the box strap and it also prevents proper rolling up of the box strap into a roll, in which form it is usually shipped. In order to obliterate this rugged edge 25 the strap is passed between two rollers 30, 31 of which the roller 30 is provided with a smooth peripheral face and the other roller 31 is provided at its peripheral face with a recess forming an anvil 32 which is narrower than the height of the boss and consequently the pressure exerted by the anvil compacts the material at the apex end of the boss 11 thus obliterating the sharp rugged edge 25 and leaving the boss perfectly smooth, as will be readily understood by reference to Figs. 3 and 5.

In practice the two sets of rollers 20, 21 and 30. 31 are mounted on a common frame (not shown) and are driven in unison by suitable mechanism, but as such driving mechanism is common in rotary dies it is not deemed necessary to further describe or illustrate the same.

From theforegoing it will be'seen'that by the arrangement described the operator after placing the strap against the face: of the box 13 can readily engage the point of a nail 12 with the conical recess formed in the face of the strap by the corresponding boss 11 and drive such nail through the fracture in the boss to engage the nail with the material of the box with a view to securely fasten the strap in place.

It will be noticed that the conical recess formed in theface of the strap by a boss 11 provides a convenient guiding means for engaging the point of the nail with the boss thus facilitating" the operation of nailing the strap to the box.

It will also be noticed that the bosses 11 readily embed themselves in the wood or othermaterial of which the box is made thus aiding the nails 12 in holding the strap in placeon the box.

It will further be noticed that by the elimination of the rough and rugged edges of the apex ends of the bosses the operator can conveniently handle the strap without danger of lacerating or tearing the skin on the fingers,- and by the arrangement described the strap, after being provided with the bosses, can be readily rolled up for shipment with the layers" in the roll properly superimposed as the bosses are of uniform height and free of rugged sharp edges.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. As a new article of manufacture, a strap for a wooden boX, consisting of a flangeless metal band having frusto-conical open ended hollow bosses struck up therefrom and projecting from its inner face, said bosses forming conical recesses with continuous unbroken walls, whereby the bosses will readily enter the material of the box and be embedded therein when the nails are driven therethrough into the material of the box.

2. As a new article of manufacture, a box strap of the class described consisting of a flat and fiangeless metal band having at spaced points, frusto-conical open ended hollow bosses struck up therefrom under pressure, the rugged edges at the apices of the bosses being obliterated to render said bosses smooth, said bosses forming conical recesses and adapted to enter into the mate rial of a box when nails are driven therethrough so that the heads of the nails will lie substantially within the plane of the strap.

PHILIP JONES FORBES.

(loplei or this patent may be obtained m five cents each, by addressing the Commissioner of Patents, Washington, 1). 0."

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