US1464240A - Envelope fastener - Google Patents

Description

Aug. 7, 1923.

F. w. CURN AN ENVELOPE FASTENER Filed Nov. 5, 1921 Patented Aug. 7, 1923.

UNITED srrss FRANK W. CUBNAN, 0F DEE-BY, CONNECTICUT.

' ENVELOPE FASTENER.

Application filed November 5, 1921. Serial No. 513,036.

T 0 all whom it may concern:

Be it known that I, FRANK W. CURNAN, a citizen of the United States, residing at Derby, county of New Haven, State of Connecticut, have invented an Improvement in Envelope Fasteners, of which the following is a specification.

This invention relates to envelope fasteners and more particularly to that type in which a cord or a string is attached either to the body or the flap of the envelope, and a securing means is attached to the other member about which the string may be wound to secure the flap in closed position.

It is an object of the invention to provide a fastener of this type which is inexpensive to manuafcture and will securely hold the string to the wall of the envelope.

It is a further object of the invention to provide improved means for securing the string to the envelope which may be punched from sheet stock and which be I easily and quickly applied.

With these and other objects in view I have devised the improved fastener disclosed in the accompanying drawing, in which Fig. 1 is a plan view of the rear side of an envelope with the flap closed.

Fig. 2 is a view similar to 1 with the flap open showing the reverse side of the securing means for the string.

Fig. 3 is a section substantially on the line 3-3 of Fig. 5.

Fig. 4 'is a perspective view of the rear side of the securing means before being applied to the envelope.

Fig. 5 is a plan view of the end or inner side of the securing means showing the method of securing the string, and

Fig. 6 is an enlarged sectional view through the gripping means for the string.

The body of the envelope is represented by the numeral 10 which is provided with a flap 11 closing one end or side thereof. A string 12 is secured either to the flap or the body, of the envelope preferably to the flap and the other member is provided with a securing means 13, in the embodiment shown, a disc fastened to the envelope and adapted to have the string wound around the same for fastening the flap in closed position as is usual in this type of fastener.

Mv improved means for securing the end of the string to the flap comprises a flat plate 14: preferably of metal and oblong, as

shown in the drawings. It is stamped from sheet stock and punched with a pair of spaced openings 15 providing two sets of prongs 16 surrounding these openings and projecting from one side of the plate. These prongsare so arranged that one prong 17 in one set is substantially on the line joining the centers of the two openings, and two prongs 18 in the other set are on opposite sides of the prong 17 and the line joining the centers of the openings. These prongs are adapted to be forced through the wall of the envelope or like article and clinched over on the back or inner side thereof, as shown in Figs. 2, 3 and 5, thus securely fastening the plate and the string to the en velope. It is preferable to place a washer 19 over the prongs before clinching the same to. prevent tearing of the wall of the envelope and pulling out of the fastener.

The string is secured between the plate and outer or top surface of the envelope wall, and extends transversely of the plate 1 substantially halfway between the openings 15, as shown in dotted lines in Fig. 5. When the prongs 16, 17 and 18 are clinched over, the prong 17 grips the string substantially at right angles while the prongs 18 grip the string on opposite sides of or straddling the prong 17, as clearly shown in Fig. 5. This arrangement provides a very strong gripping action on the string and securely fastens the same to the wall of the envelope.

It will be apparent the device is very simple in construction and may be cheaply manufactured and applied to the envelope, and

that the string is very securely fastened thereto.

Having thus set forth the nature of my invention. what I claim is:

1. A fastener of the character described comprising a double eyelet, and means for securing a string and the eyelet to an envelope comprising prongs on opposite sides of the string and bent over and gripping the same and the wall of the envelope.

2. Means for securing a string to an envelope or like article comprising an eyelet having a prong projecting from one side thereof, said prong being adapted for insertion in the wall of the envelope or the like and to be bent over the string and grip the same between the eyelet and the wall of the envelope.

3. A device of the class described comprising an eyelet having a plurality of spaced gs on one sid ereon said ipmngs mfifi L9 be insertei IQllhih ills off an envelope or the like and bent over a string to grip the same and thewa-ll of the envelope, one prong as it is bent over lying between i two other prongs bent invthe oppositecdirection.

4. Means for securing! string to an onvelope or like article comprising :1v plate hav- Leg We holes ther n. mending 2e inl lrality oi prongs :1 mangle-nich ple enslnp sd to he i fi fiflflyin the wall fi e-11 en elop or the like .olianchcdnn he nppoeiicsidc 'hflffl'filfi,

and a s ring entend ng betweenith 1mm 012cm ings, .a ip eng Efrem -oneJ opening being clinched .ove thest ngrand tw p ongs o the n her {open ng being :allsp clinched Over the string and on opposite sides of the first pron ' 5. 1' eans for securing a string to an enitelo ple n1 like article comprising a plate having one or more prongs adapted for insertion in .a nllnf the envelope or the like and to he clinched over and secure the same thereto, nd o e 1' e of said prongs beings-adap ed to he climbed overz he. string to grip :the

same. V i

te timony whereo'flafiximyisignature.

FRANK *GURNAN;

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