US2204662A - Hand closed interlocking safety seal - Google Patents

Description

June 18, 1940. CANTER mum cLbsED mmnnocxme SAFETY SEAL Filed April 24, 1939 2 Sheets-Sheet 1 I N VENT OR. Mu J41.

ATTORNEY.

Jupe 18, 1.

M. CANTER HAND CLOSED INTERLOCKING SAFETY SEAL Filed April 24. 1939 2 Sheets-Sheet 2 INVENTOR. M BY ATTORNEY.

Patented June 18, 1940 HAND QLLGSED INTER-LOCIUNG v SEAL Morris Canter, Application April 24,

2 Claims.

The object of the present invention is to provide a seal comprising two cup-shaped members joined by a narrow, relatively fragile strip, the construction being such that when the two cup- 5 shaped members are pressed together with the.

connecting metalstrip between them,they will firmly interlock. When the cord attached to tag is looped around the metal strip preliminary to closing the seal, the cord will be permanently held and should an attempt be made to tamper with the seal by forcing the interlocking members apart, the resulting strains will not only distort the cup-shaped members, but will effect breaking of the connecting metal strip.

The invention will be described withreierence to the accompanying drawings, in which:

Figure 1 is a plan view of a blank from which the seal is made.

0 of the completed seal preliminary to a closing operation.

Figure 3 is a longitudinal section on the line 3+3, Figure 2.

Figure 4 is a transverse sectional view through the seal in closed position, showing the tag cord loop held within the seal.

Figure 5 is a plan view of a modified form of the right-hand blank section. I Figure 6 is a sectional view of a modified form 4, with the exception that the inner and smaller cup 5 is formed at itsuupper wall with a hollow post which passes through an aperture formed centrally within the larger cup l.

Figure 7 is a similar view to that of Figure 6,

showing the post collapsed and riveting the two cups together.

Referring to Figure 1, it will be seen that the blank comprises two disk-shaped sections of metal I and 2, disk ,I being larger than disk 2, the disks being integrally connected by a narrow strip 3, and disk 2 being formed with parallel cuts at 2:2 in continuation of the edges of strip 3. Disk i is preferably provided with two parallel short cuts for a purpose hereinafter to be described. l a

The disks l and 2 are placed under die members and the metal of each disk is pressed into cup-shaped formation, as shown by theperspective view, Figure 2, and also in the sectional view, Figure3.

The dies are so formed that in the completed larger cup indicated at 4, there is provided at its base adjacent the vertical wall of the cupan annular channel and therim of cup 4 is turned Figure 2 is a perspective View, showing the form of the structure, similar to that shown in Figure New York, N. Y.

1939, Serial-lino, 2695s? \inward to form an overhanging annular flange as. The die which presses out the smaller cup shown at Eiforms in the sidewall of the cup, a

plurality of locking projections 5.1.

It will be seen that when the device is in its form ready for use, the cups i and 5 are moved closely adjacent each other and the metal strip 3 is formed with a sharp bend as illustrated by the dotted lines showing of the strip in its bent form, Figure 3. When cup 5 is given a rotary movement so that it overhangs cup 4 and then cup 5 is pressed within cup i until the springy locking projections 50c snap under the inturned flange la: of cup l, the formation of the metal strip 3 will be as shown in Figure 4.

Preceding this operation the loop of the tag cord will be placed over the strip, and, in the .nnal formation of the folded strip, the latter provide evidence of the tampering even should r the cups themselves not be so distorted as to indicate thatthey have-been forced apart.

In many cases the seal is used by first employing a. needleto carry a thread through the garment or other member to which the seal is to be attached, then tying a loop in the thread, the knotted end of the thread being placed over the stripof metal joining the cups so that when the cups .are pressed into mutual interlocking engagement the knotted end oi the thread is held against .dislodgement. The seal may bear identifying wording or numerals which may be embossed into the metal by the die.

Referring to Figures 5 to 7 inclusive of the drawings, it will be seen that I have provided means for positively locking together the two cup members. Referring to Figure 4 of the drawings which heretofore have been described, it will be noted that if a hollow post were formed integrally with the top of the small cup member 5, the said post might enter an aperture formed in a third cup member enclosing the larger cup 4 and be headed down to rivet the entire structure together. Such is the modification now to be described.

In Figure 5 I have shown the blank for the third cup member at G, the dotted line at 1 indicating the line at which the disk is flanged to form a cup, the blank being perforated at 8. If desired, the flange of the blank may be cut away at the area indicated at 9 in order that when the cover member formed by the blank is forced over the structure formed by the connected cup members 4 and 5, there will be no danger of cutting the tag cord, the latter being shown at ID.

This cut away area of the flange is not essential and a continuous flange may be provided, if desired. The structure shown in Figure 5 is bent into cap formation and is indicated in Figures 6 and '7 by the numeral H. It will be seen that within aperture 8 15 passed a hollow post [2 formed integrally with the smaller cup member 5 andthatwhen the three members of the device are assembled the post will be collapsed, as shown in Figure '7, to act as a holding rivet. By this means it will be impossible to disengage the cup members 4 and 5 without destroying the safety-seal.

Having described my invention, what I claim and desire to secure by Letters Patent, is as follows: I

1. A safety seal comprising two metallic cupshaped members, the first member being adapted to receive the skirt of the second member and said first member being provided with a flange at the periphery of its skirt, the second member being provided with lock projections adapted to snap under and be held by said flange when the smaller member is received within the larger member, and a strip of metal integrally joining the two members, said strip extending from a point near the periphery of the skirt of the larger cup-shaped member and being bent intermediate its length and thence extending to a point near the base of the second cup-shaped member, said strip being enclosed within the structure when the smaller cup is pressed into the larger cup and held by such locking means.

2. A safety seal constructed in accordance with claim 1, in combination with a hollow post carried by one of the cup-shaped metallic members, a cap member enclosing the two interconnecting cup members and having an aperture to receive said post, and the post being collapsed to act as a rivet.

MORRIS CANTER.

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