US1749983A - Staple and hasp construction - Google Patents

Description

March 11, 1930. D. NELSON 1,749,983

STAPLE AND HASP GONSTRUCTION Filed NOV. 1926' Patented Mar. 11, 1930 UNITED STATES PATENT OFFICE DANIEL NELSON, F OAK PARK, ILLINOIS, ASSIGNOR 'IO MARSHALL FIELD 8t COM PANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS STAPLE AND HAS]? CONSTRUCTION Application filed November 10 filed April 6, 1925.

One of the objects of my invention is to provide a hasp and staple structure which will not be subject to accidental release.

Another object of my invention is to pro vide astaple having a notched resiliently mounted leg adapted to engage a hasp in a manner to hold it against accidental release 1 but which may be forced to release position. Another object of the invention is to construct a staple together with its attaching base from a single piece of plate metal, to

which end one feature of the invention consists in punching a piece of plate metal in a r mannerto displacetherefrom atongue ofmetal of suitable dimensions to form by looping the tongue the staple to be produced, oneend of the tongue being left integral with the plate and in upstanding relation thereto, and the other end of the tongue being provided by the form of the punching die with a cross head of a dimension suitable to adapt the crosshead to engage beneath the plate from which the tongue is punched, and thereby serve as a means for anchoring the free end of the tongue to the attaching plate.

In the preferred embodiment of this part ofthe invention, the crosshead bridges the slot left by punching out the tongue, and the plate is perforated on either side of said slot in a manner to permit the ends of the crosshead to be passed through the apertures and clinched beneath the plate as a means for anchoring the free end of the tongue to the plate;

embodying the above described features in which a means is provided for causing the hasp upon manipulation of the device in a A further object of my invention is to provide an improved hasp for use with staples,

movable leg of said staple to disengage said i 6, 1926. Serial No. 146,588.

manner to remove the hasp from said staple.

It is to be understood in connection with this invention that the improved hasp may be used with any one of the disclosed forms of staples, it only being necessary to select one which has a movable leg provided with a hasp engaging notch, or the staple may be used with a hasp of ordinary structure, the disengagement in such a case being accomplished by forcing the hasp in an outward direction.

Another object of the invention is to provide a staple that will be resilient under the engagement of the hasp or the keeper with which it is to be'used, and to this purpose, the staple has inherent resiliency and the free end of the staple is movable on the plate to which it is anchored, preferably in a plane which includes the two legs of the staple so that when thestaple is so locked that-the keeper impinges, against the movable leg of the staple, it will bind in such position and be secure against unintentional displacement; anclin the preferred embodiment of this part of the invention, the movable leg of the staple is provided with a recess or undercut in which the keeper engages, or through which to provide an overhang and render the keeper more secure against unintentional displacement. a

The feature of having one leg of thestaple resilient or movable and provided with a recess in order that the keeper may interengage therewith, is not limited in its application to a staple struck up from plate metal and having its movable leg anchored through means of a crosshead but may be embodied in a staple constructed with a looped rod or wire having its ends rivetedin the base plate.

These and other objects are accomplished by means ofthe arrangement disclosed on the accompanying sheet of drawings, in which- Figure 1 shows a perspective View of a staple and hasp made in accordance with my invention; 1 1

Figure 2 shows a cross sectional view of Figure 1 disclosing the manner in which the hasp fits the notched staple and the resilient leg yieldingly held in the base plate, Figure 8 is a showing of a modified form of iii:

staple structure produced from plate metal;

Figure 4 is a cross sectional view of the structure shown in Figure 3 taken on the line 4"4";

Figure 5 is a cross sectional view of Figure 4 taken on the line 5*5 and Fig. 6 is a showing of a modified form of hasp which has a releasing device but which may be used with any of the various types of staple structures.

Figure 7 is a perspective view of the staple shown in Figure 3, witha modified form of has T he various novel features of the invention will be apparent from the following description and drawings and will be particularly pointed out in the appended claims.

Referring to the drawings, it will be noted that my invention embraces an improved staple structure and a hasp therefor, modified forms of the staple being shown in Figures 2 and '3, either of which may be used with the type of hasp shown in Figure '1 or the type shown in Figure 6, the latter being provided with a staple engaging lever.

Referring to Figures 1 and 2, the type of sta le shown embodies an attaching plate 10 an a U-shaped portion 11, one end of which is rigidly attached as at 12 to the plate 10 by riveting or any other suitable means, the opposite end being inserted as at 13 in an opening in the plate 10 in a manner to permit a slight movement. Closely adjacent the plate the staple 11 is provided with a notch 14 a afted to receive the hasp, the relationship 0 these parts being such that when the has and sta le are in co-operating position, as s own in igures 1 and 2, the hasp is maintained against accidental displacement by the notch 14. As shown in these figures, the hasp comprises an attaching plate 15 and a hinge portion 16 provided with a slot 17 adapted to receive the staple 11, the plate 16 being pivoted to the attaching plate as at 18.

Referring to Figures 3, 4 and 5, 2O represents an attaching base, 21 the staple member of a staple for hasps or other keepers for doors or other closures, both of which mem- "bers are formed froma single blank of late metal, by subjecting the blank to punc ing dies shaped to strike from the plate a tongue having the dimensions of the staple member 21 andsevered therefrom on all sides except at one end where it is left integral with the plate. The tongue or staple member 21 carries a crosshead 22 of suflicientdimens'ions to adapt it to bridge the slot ,23 left in the plate and also of sufficient dimension to provide clinching ends'24 which are inserted through a ertures 25 also punched in the plate 20 and c inched beneath said plate .in a manner to provide a firm anchorage for the free end 26 of the tonguein completing the staple. Preferabl the apertures 25 which receive the cross ead .22 of the staple member are elongated in a plane parallel to that of the staple so that the anchored end may move slightly relatively to the integral unit or immovably mounted end 27 of the staple member and this condition, coupled with the condition of inherent resiliency in the staple member, adapts the staple to yield to impingement of the endof the slot 28 formed in the hasp 29 when the staple and hasp are mounted in properly selected positions, and thus cause the hasp to bind in its engagement with the staple and be secure against unintentional displacement. In order to afford greater security in this binding of the hasp upon the staple, the movably anchored end or leg of the staple may be formed with the recess 30, which provides a shoulder or overhang to engage the hasp as the movable leg springs back into position.

Referring to Figure 6, the type of hasp there disclosed comprises an attaching plate 3]. hinged as at '32 to a staple engaging portions 33, this last named portion having a suitable slot 34 adapted to receive the U-shaped portion of the cooperating staple in the manner shown. The staple in this figure comprises a U-shaped portion 35 and an attaching plate 36 having screw holes 37, it being understood, however, that the type of hasp shown in this figure may be used with the type of staple shown in either Figure 2 or Figure 3, it only being necessary to provide a staple with one notched movable leg. The outer end of the hasp port-ion 33 is provided with upstanding ears 38 apertured as at 39 to form bearings for the pivoted lever 4-0 having integral pivoted projections 41. The lever .40 is provided with a staple engaging portion 42 .and an outer end constructed to be easily engaged or mainpulated by the same movement necessary to remove the hasp from the staple. The length of the lever plate is so selected relative to the cooperating staple that the lever will normally engage the staple at the upper portion thereof but which will effect through a camming action the ,movement of the movable leg to an extent sufficient to release the hasp from the notch.

Referring now to Figure 7 the same type of hasp as shown and described in connection with Figure 6 is shown as applied to the form of staple disclosed in Figure 3. The operation will be exactly the same, and inasmuch as the various parts are designated by the same reference characters, further description is believed to be unnecessary.

'To operate this type of hasp, it is merely necessary to engage the under side of the outer end of the lever 40 and lift upwardly, the first movement causing the staple leg to disengage the hasp and the continued movement causing the hasp to be removed therefrom. The operation of the type of hasp shown in Figures 1 and 2 is simply that of a camming action of the :rounded edge of the openings against the edge of the hasp, this movement being effected by forcing the hasp out of engagement in a direction away from the staple plate.

I claim:

1. Latching means for hasps comprising an attaching base, and an inherently resilient staple constructed with one leg fixedly mounted on said base and its other leg movably anchored to the base and having a limited movement relative to the fixed leg, said movably anchored leg having a recess adapted toen gage a hasp and adapted to pass an interengaging portion of said hasp to and from its recess by the resilient action of the staple.

2. A staple for hasps, comprising an attaching plate and a staple carried by said attaching plate, with one leg resilient, said staple comprising a tongue of metal stamped from the attaching plate and formed into a loop and having a cross-head which bridges the slot in the plate left by said tongue.

, 3. A staple for hasps, comprising an attaching plate and a staple carried by said attaching plate, with one leg resilient, said staple comprising a tongue of metal stamped from the attaching plate and formed into a loop and having a cross-head which bridges the slot in the plate left by said tongue, said crosshead being secured against lifting from the base plate.

4:. A staple for hasps, comprising an attaching plate and a staple carried by said attaching plate, with one leg resilient, said staple comprising a tongue of metal stamped from the attaching plate and formed into a loop and having a cross-head which bridges the slot in the plate left by said tongue, said crosshead having its ends clinched on the underside of the plate, on either side of the slot thereby securing said crosshead against lifting from the plate.

5. A staple for hasps, comprising an attaching plate and a staple carried by said attaching plate, with one leg resilient, said staple consisting of a tongue of metal and an integral crosshead stamped from the attaching plate and formed into a loop and with the crosshead bridging the slot in the plate left by the tongue, said crosshead having its ends clinched on the underside thereof of the plate on either side of the slot thereby securing said crosshead against lifting from the plate and said plate being slotted to receive said clinched ends, and the crosshead being left with limited movement in the plane of the plate.

6. In a device of the type described, a latching staple having a leg rigidly mounted on said base and a leg movable relatively to the rigid leg and constructed with a recess, a hasp for said staple having a portion for engaging in said recess, and means for engaging said movable leg to move sa1d leg out of engagement wlth sa1d hasp.

7. In a device of the character described,

the combination of a hasp and a staple having a notched movable leg, said hasp having a lever pivoted at one end adapted to engage the movable leg of said staple whereby manipnlat-ion of sa1d lever moves said leg to release

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