US 1690408 A
Description (OCR text may contain errors)
Nov.- 6, 1928. 1,690,408
' N. 'r. HASENFLUE HASP Filed 061;. 25, 1926 Patented Nov. 6, 1928 UNITED STATES 1,690,408 PATENT OFFICE.
NELSON 'r. HASENFLUE, F GENEVA, OHIO, ASSIGNOR TO THE cHAMrIoN HARDWARE COMPANY, or GENEVA, omo, A CORPORATIONOF omo.
Application filed October 25,1926 Serial No. 143881.
This invention relates to hasps and more particularly to that portion of the hasp commonly known as the keeper, the invention residing particularly in the construction and combination of elements comprising the article and the method ofmaking the same.
Keepers as at present manufactured and used are of two common'types. One type embodies a keeper plate which has two spaced openings and through these openings are extended the legs of thelooped portion or eye which has a retaining plate secured to the free ends on the back side of the;
keeper plate by riveting or peening the free ends which extend through the retaining plate. This type of keeper has one disadvantage in that the eye can be rather easily disengaged from the retaining plate by inserting a screwdriver or bar through the eye and exerting outward pressure thereto and by so doing, the eye is disengaged from the keeper plate. I
p The other common type of keeper has a keeper plate similar in construction to the keeper plate heretofore described, except it is provided with an elongated slot through which the eye is extended from the back side of the keeper plate, the eye havingan integral base behind the plate long enough to prevent the eye as a wholebeing pulled through the slot. The disadvantage of this type of keeper resides in the fact that theeye is readily disengaged from the keeper plate when being handled and very often becomes lost in shipment, the disadvantage described in the first mentioned keeper,
however, being not present in this second type of keeper.
The principal object of the present inven' tion is to provide a keeper which has the advantages of both forms of keepers above described, but does not possess their disadvantages.
This is accomplished by a new form of keeper and by a new process of making the same whereby the keeper plate in the finished product is, in effect, like the plate of the first described'construction but wherein the eye is like that used in the second construction in the respect that it is composed. of a loop and an integral base, the loop being inserted through the plate when the keeper is being formed, i. e., extended from the back side of the plate through the equivalent of a slot, but in the completion of the product, the slot is eliminated or closed leav ing spaced openings only through which the legs of the loop oreye extend.
The invention may be further briefly summarizedas consisting in certain novel details of construction in the keeper itself and in certain novel steps of the method of producing the same.
In the accompanying sheet of drawings: Fig. 1 is a perspective view of the finished keeper; Fig. 2 is a sectional view substantially along the line 2-2 of Fig. 1; Figs. 3 and 4 are plan views of the. keeper plate in different stages of the manufacture thereof; Fig. 5 is a sectional View substantially along the line 55 of Fig. 4; Fig.6 shows a keeper plate and eye about to be assembled, the section through the keeper plate being at right angles to the section shown in Fig. 5 and Fig. 7shows dies and the two parts of the keeper therein preparatory to the final operation which bends inwardly certain tongues into or through the loop of v the eye to close the previously open slot through which the loop was extended.
Referring now to the drawings and first to Figs. 1 and 2, the keeper comprises a. keeper plate 10and the eye 11. The keeper plate ,has a transverse raised portion or channel 12 to accommodate the base 13 of the eye, the legs ofwhich extend through Spaced openingsl in thechannel. It Will be noted from'Figs. 1 and 6 that thebase 1.3 of the eye is formed integral with the loop portion thereof, as in "the second described prior construction but it will be ob served also that the keeper plate does not have an open .slot through which the loop extendsybut between theopenings 14 the metal is closed in, thus permanently interlocking the two parts atthe time of their.
manufacture or assembly and providing a keeper which has the advantages of both mentioned prior constructions.
The keeper plates 10 are formed by a series of punch press operations from a strip of metal of the proper thickness and width and in Fig. 3, I have shown at 15, a partially formed keeper plate which can be produced from one or a series of punch press operations. The plate has'near its corners screw receiving openings 16 and on its transverse center line, it has the openings 14, already referred to.
In Fig. 4, I have shown at 17 the keeper A portion, as clearly indicated plate in a furtherstage of manufacture. It willbe observed-thatftliis plate. has a transverse channel 12 already referred to, and that the metal previously bridging the openings 14 is rent-enemas the 'form of lips 18 leaving betiv'en -these lips a/space or a.
slot 19 wide enough to receive the loop of the eye 11.
Next, the loop of theeye is extended through this slot so that the base portion of theeyewill lie on the underside of the ehanr nel, and then the lips are bent inwardly and downwardly into engagement with each otherat their edges, torinin a flat bridging i i in Figs. 1 and 2. The flattening of the lips is preferably done in a pair 01 dies such as indicated in Fig 7, wherein 20 represents the stationary die on which the assembled keeper and eve are placed and 21 represents the movable die having asl ot 2:2 which receives the loop of tlie veye and hating portions 23 which engage theupstanding lips 18 and drive them downwardlyand inwardly so as to lie flat overthe base 13.015 the eye and 'tln'ough the loopthereof, thereby keeping the two parts of the keeper 7 permanently interlocked against accidental displacement. I l ny suitable punch press apparatus may be utilized" to produce the, keeper plate in the form indicated in Fig. 4 and it may be produced in difierent ays. Preterably, the
sc -en openings 16'and the loopopenings 1 1 are punched in; one operation and in the same operation, the openings 16 are pref-e12 ably countersunlnso as to aeeommodatethe headset the attacl iing screws. These openings are generally punched in the strip before theplate15 of Fig. 3 is severedtherefrom. f i H flhe channel 12 is tormedand the lips 18 are preferablyhent outward in the same ope ratlo'n. Generally, the metal between the olinings 14 is severed, indieat e dat 2 4: in Fig. .3, before the 'operation in which the channel 12 is formed and the lips 18 are struck up, Thecutting or severing of the metal at 24 may be done while the metal is still strip form, either during the operation When the openings 14 and; 16 are punched or subsequently, thereto;
I do not regard itessential that the metal be actually severed prlor to the operation ii'hi eh forms the channel "and strikes up the lips i'Oritmay be possibleto sever the metal and strike up the lips in the same operation, :QJL i a 0 and It may be possible also to accomplish the above n the same operation wherein the openings Handlti are punched; that is to say, the plate illustrated in ljigul maybe formed and severed from the stripin one operation.
The material part of the process is forming the slot to receive the loop of the eye by bending the metal outwardly so that it can be restored or bent back after the loop is extended therethrough, lrrespect ve of the number of operations or-steps in which this the underside of theplate, and extending i laterally; beyond: the openings whereby separation of the keeper and eye by movement in any direction is preventec 2. A keeper for a hasp comprising a keeper plate having a pair otspaced openings, an eye having its legs extending through the openings and having an integral base portion on the underside ofthe plate, and said plate having lipgentending inwardly through the eye between said openings. 3. A keeper for hasps comprising a keepor plate having a pair; of openings, an having its legs extending through said open ings, a laterally extending has'e portion on said legs engaging the plate on the opposite side from said eye, and a severed bridging aoi tirnr between the legs extending through said; eye. a a i In testimony whereof, Ihereunto aflix my signature.
NELSON T. HASENFLUE.