Abstract: A folding clasp for a wrist-watch, having at least one folding arm (1, 2) articulated with respect to a base plate (3) and a locking device (4) located on the base plate (3). The locking device (4) includes a mobile part (4.5) permitting a locking with an inclined end face (1.1, 2.1) of the at least one folding arm (1, 2) folded down on displacing the mobile part (4.5) in plane (TT') substantially perpendicular to the opening/closing plane (00') of the at least one folding arm (1, 2).

Abstract: An improved clasp assembly which can be readily detached and reconnected to one or more strand ends, the latter being configured to be passed through jewelry components being slidably mounted on the strands. One embodiment of the clasp assembly comprises a catch permanently secured to one strand end, and a housing detachably secured to the other strand end. The catch is separably received in snap engagement within the housing, and the housing includes a latch mechanism accommodating its detachment and reattachment to the other strand end without the need to employ specialized tools or to involve jewelers.

Abstract: The invention relates to a folding clasp having at least one folding arm (1, 2) articulated with respect to a base plate (3), with a locking means (4) located on the base plate (3), permitting a locking of said at least one folding arm (1, 2) by pressing said folding arm (1, 2) onto said locking means (4), said locking means (4) being compressible and/or deformable in a first plane (TT') parallel to a base surface of said locking means (4).

Abstract: An adjustable ring is provided which consists of pivotally linked sections. One section is made of two telescopically engaged parts. One of these parts includes holes. The other part includes an axially displaceable element mounted on a pivotal segment of a decorative structure of the ring for engaging in the holes.

Abstract: A buckle comprises a pair of push buttons 16 slidably mounted between side walls 4 of a surface cover 2, a spring 19 for outwardly urging the push button, a lock pin 26 mounted on a lower plate 10 and provided to be engaged with a hook of the push button, a lock cover 30 rotatably connected to a connecting pin 14 provided at an end of the lower plate so as to be positioned above the surface cover, and an engaging hole 32 formed in a side wall of the lock cover. An engaging projection 22 of the push button is engaged with the engaging hole so as to lock the lock cover at the closed position.

Abstract: A clasp mechanism that incorporates an extensible feature for ease of use is provided, which can be used on jewelry and other items. Instead of completely separating the ends of the attached jewelry or other item and then having to reconnect a clasp, the clasp mechanism separates and spreads apart by an interconnected extensible segment. The clasp can be attached to opposing ends of nearly any jewelry item, such as a bracelet, by known techniques such as soldering or bonding. The clasp incorporates an extensible segment such that when connected to opposing ends of a bracelet for example, the bracelet expands at the clasp mechanism to fit over a hand or foot and then contracts to securely fit at the wrist or ankle. The clasp mechanism does not require disconnecting and reconnecting when placing the jewelry piece onto one's person.

Abstract: Wristlet clasp including first and second elements (1, 2), respectively mechanically connected to strands (5, 6) of a wristlet. A third element (3) mechanically connects in a hinged manner the first and second elements (1, 2). A cap (4) is rigidly and removably fixed to the first element (1). This cap includes two wings. The first element (1) is pierced by two transverse holes (15, 16) in which two pins or screws (35, 36) are engaged. One of these two transverse holes (35) is covered by the wings of the cap. The adjustment of the length of the wristlet is effected by connecting the first element and the third element to each other either via the first pin or screw (35), or by the second pin or screw (36).

Abstract: The bracelet clasp is of the type having an unfolding buckle including a base strip (1) onto which at least a first pivoting strip (2) is capable of folding down. A locking device blocks the strips one onto the other.The locking device consists in two tongues (4, 5) raised from the base strip (1) and a fork having the shape of a tuning fork made in the pivoting strip (2), this fork having two branches (7, 8) whose ends (9, 10) are bent, each of said ends being arranged to snap lock onto one of the tongues raised from the base strip when the clasp is in a closed position.The clasp can be advantageously used in connection with a wristwatch bracelet.

Abstract: The invention relates to a clasp (1) for a band or bracelet (2) having two strips (6, 8) articulated with respect to one another by one of their ends across a common hinge (10), having a cover (3) and a base (9) detachably arranged around a common rod (11), which is guided by a transverse branch (6.4) firmly fixed to the first strip (6), having a first bracelet strand (2.1) fixed to the second strip (8), having a tongue (4) mounted on the base (9) permitting the fixing of a second bracelet strand (2.2), a reinforcement of said fixing taking place by lowering the cover (3) onto the tongue (4) and the lowered cover (3) and base (9) are jointly articulated with respect to the first strip (6), making it possible to open the clasp (1) in order to remove the bracelet (2) without undoing the fixture.

Abstract: A jewelry safety claps includes a hook member with a hook disposed thereon. A housing member includes a hole formed thereon for receiving the hook and to be selectively disengageable from the hook. At least one foot is disposed in the housing member and is capable of moving between a first position corresponding to retraction within the housing member and a second position corresponding to extending outside of the housing member. A foot receiving portion disposed on the hook member for receiving the foot and selectively retaining the foot therein prevents disengagement of the hook member from the housing member.

Abstract: A housing (16) is provided for housing necessary members and to be connected to a personal adornment band (1, 2) at an end of the band. A slide plate (18) is slidably mounted in the housing so as to be moved in a longitudinal direction of the band, and connected to the other end of the band, and a push plate (19, 20) is laterally slidably provided in the housing. Ratchet teeth (37) are formed on the slide plate. A lock projection (41) is formed on the push plate, and a spring (21) is provided for urging the push plate for engaging the projection with one of the ratchet teeth at a position selected from a plurality of positions dependent on the ratchet teeth.

Abstract: An arrangement for fastening a wristlet onto a watch the middle-case of which is provided on its lateral sides with case-flanks to support lugs for the fastening of the wristlet and formed with holes for the axial engagement of the ends of the lugs and wherein at least one flank is movably mounted with respect to the case so that it may perform a movement for disengaging the lugs from their engagement holes and a pivoting movement into a position in which the ends of the lugs are remote enough from the flank formed with their engagement holes in order to permit the withdrawal of the ends of the wristlet from the lugs by a translational movement in the axial direction of the lugs.

Abstract: A fashion belt is provided which is capable of being formed variously out of various kinds of materials to various cross-sectional shapes. The fashion belt is capable of being tightened and loosened. The fashion belt includes a belt body and a buckle, the belt body being provided at one end portion with a fixing member and at the other end portion with locking bores, and the buckle being provided with a locking portion having an end to be fixed with the fixing member, and an opposing end capable of accepting the belt body, after insertion, in order to lock and unlock the belt body in an arbitrary position of insertion. The fixing member is provided with locking projections which are to be fixed by locking with locking bores of the buckle. The buckle has a rectangular cross-section and first and second ends having first and second openings, respectively. The second opening is provided with a locking portion which is to matingly lock with the locking bores of the belt body.

Abstract: A jewelry clasp (10) comprises a pair of opposite interlocking members (30). Each of the interlocking members has a top portion (26), a bottom portion (28), and a forward and a rearward end (25,27), respectively. The interlocking members have forward end tines (24). Each of the tines has a transverse bore extending therethrough. A pin (60) is provided for inserting through the bores to lock the interlocking members together in a closed position. The pin has a top (62), a terminal end (80) and an shank (70) therebetween. The top has a bore (67) extending through it. A pair of upstanding posts (50,51) are secured to the top portion of each of the interlocking members. The top of the pin protrudes a height at least as great as the posts when the pin is fully inserted in the bores. At least one of the bores and at least a portion of the shank have complementary threads (31,81).

Abstract: An improved bangle closing mechanism (26) is adapted to releasably join two tubular arcuate bangle halves (11, 12). The improved closing mechanism has a keeper bar (28) provided with a proximal portion (29) adapted to be operatively engaged with the first bangle half (11), an intermediate portion (30) extending between the bangle halves and penetrating a narrowed opening (23) in the second bangle half (12), and an enlarged ball-like head portion (31) operatively arranged within the second bangle half. The projected diameter (d.sub.1) of the head portion is greater than the projected diameter (d.sub.2) of the narrowed opening. The head portion prevents the keeper bar from being withdrawn from the second bangle half, and facilitates sliding movement within the second bangle half as to the bangle halves are moved relatively toward or away from one another.

Abstract: This invention provides a fashion belt capable of being applied to various kinds of materials and various cross-sectional shapes, and tightened and loosened easily. This fashion belt is formed by a belt body (1), and a locking member 30 capable of fixing one end portion of the belt body thereto, receiving the other end portion of the belt body so that the tightening length of the belt body can be regulated, and locking and unlocking the second-mentioned end portion thereof in an arbitrary position of insertion thereof.

Abstract: A buckle for watch bands has a cover (1), a guide housing (15) secured to an inside of the cover, the guide housing having a pair of push plates (19) each of which has an engaging projection (21) and springs. A middle plate (16) and a tongue (6) are rotatably connected to an end of the cover, and a bottom plate (18) having a band connecting portion and an engaging lug (23) is rotatably connected to the middle plate. A band is connected to the band connecting portion of the bottom plate. Another band having adjusting holes is inserted into a space between the cover (1) and the housing (15) and the tongue (6) is inserted into the adjusting hole so as to adjust the length of the band.

Abstract: An adjustable roller skate having means to independently lock the front wheels against rearward movement and the rear wheels against any movement, means to selectively lengthen the roller skates to a variety of sizes, and means to securely lock a foot or leg strap in selected positions against accidental release.

Abstract: A buckle has a cover rotatably connected to an end of one of bands, a middle plate rotatably connected to the cover, and a bottom plate rotatably connected to the middle plate and rotatably connected to the other band. A guide housing is secured to an underside of the cover, and a pair of push plates are slidably mounted in the guide housing. A spring is provided between the push plates for outwardly urging the push plates respectively. A slant is formed on an engaging projection of the push plate. A pair of lugs are formed on the bottom plate. Each of the lugs has an engaging hole and is arranged such that the lug is engaged with the slant so as to inwardly move the push plate, and that the engaging hole engages with engaging projection of the push plate, thereby coupling the buckle. A leaf spring is provided for urging the cover in a disengaging direction.

Abstract: The closing device consists of a frame (12) and opposed arms (14) with hook (18) designed to be inserted in the central bolt (20). In the latter, which is bounded below by the base (24) and above by the crosspiece (30) there is arranged in a sliding manner the plate (28) with openings (32), (36) and (34). The latter receives the spring (42) while in the openings (32) and (36) are engaged the hooks (18) of the arms (14).The end (28') of the plate (28) is drawn manually outward and brings about simultaneous unhooking of the arms (14) to which are constrained the band branches.Additional forms of embodiment call for the use of a bolt (60) with pushbutton (68) for simultaneous unhooking of the arms (54) and a bolt (90) with pushbutton (98) which moves opposed shaped plates (94), (94') which constrain the arms (84).

Abstract: A clasp for a pair of wristbands on a digital watch having a pager with a radio frequency receiver such that the wristbands comprise an antenna that has its circuit completed and closed into a loop antenna when a user snaps the wristbands together with the clasp. The clasp has a catch shaft welded or soldered to a clasp body such that electrical contact between the antenna in the wristbands is thereby improved.

Abstract: The clasp (1) is telescopically extensible. It includes a first tubular element (2) capped on its upper and lateral faces by a plurality of links (5) resembling those employed for the rest of the bracelet. Into the first element there may be introduced a second tubular element (8) which in turn is adapted to accommodate a third element (10) in the form of a plate to which is attached a blocking system in order to maintain the clasp in its retracted position. The clasp is for a bracelet and shows no greater thickness relative to the links forming said bracelet.

Abstract: A buckle including a frame member attached to an end of a band, and a clasping member rotatably attached to an end of another band is disclosed. An engaging projection having a hook portion and beveled portion is provided on the underside of the clasping member and a lock device is provided in the frame member. The lock device includes a slidable first operating member having a beveled edge and a slidable second operating member having a releasing member. The hook portion engages with the beveled edge and the releasing member engages with the beveled portion to push up the clasping member at the disengagement of the hook portion.

Abstract: A clasp for a bracelet or similar device including first and second arms hinged for pivotal movement between open and closed positions, wherein a buckle carried by the first arm adjustably receives the end of a first strap therethrough, the free end of the first strap being inserted through an opening provided in the first arm and concealed under a second strap connected to the second arm when the arms are disposed in the closed position.

Abstract: A clasp for a wrist bracelet comprises upper and lower pivotally interconnected plates. Flanges are provided for connecting the upper plate to one end of a wrist bracelet and the free end of the bracelet is selectively received between a pivotally mounted locking plate and the lower plate. The plates are movable between a spaced apart or open position wherein the free end of the bracelet may be slid freely beneath the locking plate, thereby allowing a wearer to obtain a comfortable fit, and a locked position wherein the plates are pressed together and the locking plate is actuated so as to restrain further movement of the free end of the bracelet.

Abstract: At one of the extremities of the bracelet, which is formed of two rows of rectangular side links (1,2) and of a middle row of rectangular wider links (3), is arranged an end piece (6) having the appearance of two side links and of a middle link. This piece (6) is fixed to a clasp (5) by the intermediary of a slide (7). The piece (6) presents a series of lateral holes and the slide a corresponding hole which one can bring, according to choice, face to face with one or the other of the holes of the piece (6) in order to exactly adapt the length of the bracelet to the wrist. A pin driven into the holes which coincide secures (6) and (7) with regard to one another. Thus finds itself made possible the precise adjusting of the length of bracelets with large rectangular links.

Abstract: An adjustable deployment band comprising two watch band halves and a foldable closure member including a lower closure part to which one of the watch band halves is adjustably connected, an upper closure part to which one end of the other watch band is connected, and a folding part connecting the upper and the lower closure part for movement between an open and a closed position in which the closure parts interengage superimposed with each other to form a closed very shallow housing in which one end portion of the one watch band half and the folding part and the fastening member are located.

Abstract: This disclosure relates to locks for bracelets, belts and the like to fasten two ends of the same together. The lock basically includes sliders which are attached to the ends of the bracelet, etc., with the sliders having rack formations which are engaged by a single gear to effect the simultaneous inward and outward movement of these sliders. Associated with the gear is a ratchet wheel and depressable keys are provided for effecting the locking, releasing and rotation of the ratchet wheel and the associated gear.