US1506233A - Bag fastener - Google Patents

Description

Aug. 2a, 1924. 1,506,233

' F. A. FULLER BAG FASTEN'ER Filed Feb. 25 1922 ATTORNEY Patented Aug. 26, 1924.

UNITED STATES 1,506,233 PATENT OFFICE.

FRANZ A. FULLER, or NEWARK, new mass-Y, Assiqrroaro fire J'. E; Manama eoMPAN'Y, or NEWARK, NEW JERSEY, A; CORPORATION on DZEEAWARE.

BAG FKSTEN'ER.

Application med February 25; fa se. Serial in. 539,136.

To (ZZZ whom it may concern:

Be it known that I, FRANZ A. FULLER, .a citizen of the United States, residing in Newark, county of Essex and State of New Jersey, have invented certain new and useful Improvements in Bag Fasteners, of which the following is a specification.

This invention has as its object to provide cheap, strong and effective bag clasp, made from a single ,"iece of sheet metal blanking and 'forini g operations.

llnother purposeis to produce a clasp adapted to be hi'ngedly secured upon one of a pair of bag frame elements and so. 511-- ranged as to automatically raise and receive the mating frame element, upon their being pressed together, and prevent their separation until manually operated.

A further aim is in the provision of a neat appearing clasp having no objectionable projections and which is not readily liable to get out of order or fail in its pur os'e.

hese objects are attained by the novel de- Sign, construction and arrangement of parts hereafter described and shown in the annexed drawings constituting an essential part of this disclosiire, and in which:

Figure 1 is a plan view of a blankfrom which the preferred embodiment of the illvention is formed.

Figure 2 is a perspective view of the clasp as made from the blank shown in Figure 1.

Figure 3 is an interior view of a fragment of bag frame illustrating the application of the invention.

Figure 4 is a perspective view similar to Figure 2 but showing a modification in construction.

F ignre 5 is a similar View showing a further modification of clasp.

Figure 6 is a transverse sectional view taken on line 66 of Figure 3.

The blank, as shown in detail, comprises a plate 15, bounded by longitudinal bending lines 16 and 17 and transverse bending lines 18 on which the ends 19 are turned at right angles. these ends joining the front wall 20 of the plate adjacent the bending line 17.

Another bending line 21, parallel to line 1T. forms the inner boundary of a lip 22 eventually curled re-entrantly over and spaced from the step 20, this lip constituting the engaging portion of the clasp, ex-

tending outward over the opposed frame manner.

The line 16 bounds the base of the rear wanes (if the ens, the same being bent fit a right angle tot ie plate 15, foi iiiin'g in connection with the ends 19 and front '20. a shallow rectangular casing having an overhanging lip 22. j The rear wall 23, near one end, has at tached tending line 24 a narrow element 25 offset inwardly of the casing, a distance at least equal to the thickness of the niateral and then bent on line 26 outwardly, parallel with the rear wall, into a detent 2T havextending prong 28 separated from watt "235 a space 29, as well as being offset \vi'th' relation to it.

At equivalent distance from the opposite end of the wall 23 is a strip 30 bent outward on line 31, in ah'n'eihent with the de tent 27 'ahd then curved to present a loop 32, having a straight opening of flattened cross section, the continuation 34 of the strip Having a peace lateral projections 35, their Bottom resting on thei'nner surface of the plate As the strip elements 30 and 34 are pressed tightly together, the projections 35 are obviously brought into intimate contact with the inner face of the wall 23 ttnd are ltitt time separation by v v of the lugs 56,- format was tar sesame at at the rear wall and bent to prevent any possible movement of the strip in any direction, due to their embracing said projections, as can be clearly seen in Figure 2.

In operation, the detent 2728 is passed loosely through a slot formed in one of the frame members 10 and then moved lengthwise until the space 29 is seated on the frame, at which time the loop 32 can be passed through an appropriate opening in the frame.

A spring Wire 40, having a flattened end 41, is passed through and tightly engaged in the loop 32, its opposite end being bent outwardly, as at 42, and flattened to press against the side of the channel in the frame. adjacent its front overhanging portion 12, that portion of the wire adjacent the head 42 making contact with the inner face of the detent 27, acting in the manner of a torsion spring to hold the clasp pressed downwardly in an engaging position, but; obviously permitting it to rise upon presges and end of the strip at sure being applied to lip 22, as in opening or closing the frame members, (see F igure 3).

In the modification shown in Figure 4, two loops 32 are formed in the manner described, each having projecting ears at the ends of their inturned elements, and lugs 36'37' are provided to hold them firmly in place, a single lug being used to engage the ends of the adjacent, central projections.

In Figure 5, there is illustrated a decided modification of loop construction, which will now be described. The end element 19, remote from detent 272S, is formed with an extending strip 50 bent to spacedly overlie the casing, and having, near its end, a lateral projection 51 disposed parallel with the rear wall, the same being formed into a loop 52 having an opening 53 and then continued, as at 54, closely against the element 51, projection 55 extending later ally from its end.

Like the foregoing, the end of the strip and corresponding edge of the projection make contact with the inner surfaces of the plate 15 and are firmly held against it and also against rear wall 23, by bent lugs 36-37, as described, one or two of the lugs being used as preferred.

While the foregoing disclosure applies to preferred embodiments of the invention, it will be understood that variations may be made in form, proportion, and detail, and it will be obvious that the structure set forth is applicable to a wider range of purposes than those indicated.

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

1. A frame clasp comprising a plate having rear and end walls, a re-entrantly turned lip extending from the front of said plate, a loop formed with said rear wall, means integral with said plate for clamping the inner element of said loop against said rear wall, said loop being adapted to extend through a slot in the frame, and a torsion spring engaging in said loop and in contact with said frame. 2. A frame clasp comprising a plate havmg integral rear and end walls, a hooked catch formed with the rear wall, a loop, means for confining said loop to said rear wall, said catch and loop engaging loosely in slots in the frame, and a torsion element engaging in said loop and with said catch at the inner side of said frame.

3. A device of the class described comprising a plate having an angularly disa loop and then closed tightly, the longi tudinal edge of the bar portion of said element being in contact with said plate, and lugs formed with one of said walls adapted to confine the bar portion of said element within its assembled position.

This specification signed and witnessed this 23rd day of February, 1922.

FRANZ A. FULLER. Witnesses:

A. B. UNDERHILL, W. H. CONKLIN.

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