Abstract: A fabric-covered button includes a button body with a domed head to be wrapped by a piece of fabric, a retainer washer of synthetic resin adapted to fit forcibly over a boss projecting rearwardly from the domed head and to press an edge portion of the fabric piece against a peripheral flange of the domed head, and a fastener having a shank adapted to fit forcibly into an axial hole in the boss. Either the boss or the shank has at least one axial slot which allows air to escape from the hole in the boss when the shank is forced into the hole.

Abstract: An apparatus for gapping a continuous slide fastener stringer comprises: a presser unit having a punch and a coacting die for pressing a group of fastener elements, in a selected portion of the stringer placed therebetween, to reduce the thickness of their leg portions, and for holding the pressed fastener elements; and a gripper unit having a pair of relatively pivotable grip members for gripping a stringer tape on the opposite sides of the stringer, the gripper unit being disposed alongside of the presser unit to grip the tape from the fastener-element side of the stringer and being movable between its normal position and its advanced position along an arcuate path for moving the gripped tape to remove the pressed and held fastener elements therefrom seriatim.

Abstract: An automatically locking slider for slide fasteners includes a locking member having a locking pawl and a pivot portion, and a resilient member urging the locking member so as to cause the locking pawl to normally project into a slide fastener guide channel. The pivot portion lies substantially flat on a slider body, with its tip end loosely received in a socket carried by the slider body. Upward movement of the pivot portion is restricted, through one end portion of the resilient member, by a plug carried by a yoke attached to the slider body.

Abstract: An efficient and reliable means is provided for removing fastener elements or scoops from the tape-edge cords of a slide fastener chain to form the so-called space section without injuring the cords and beads, wherein carrier tape is held between a pair of holder members in a manner such that the ends of the bifurcated leg portions of fastener chain element are in contact with the ends of the holder members; each fastener chain element is cut and divided at the head portion by a wedge-like cutter blade into two pieces with simultaneous opening of the holder members whereby the bifurcated leg portions are outstretched and the scraping of element debris off the carrier tape is facilitated; and the tape-edge cord is withdrawn into between the two holder members before it is contacted by the edge of the downward cutter blade.

Abstract: An improved separable end stop of a slide fastener with which the slide fastener can be opened very smoothly without the necessity of forcible pulling of the end stop to decoupling. The separable end stop comprises an insert piece with a stud pin implanted thereon and a connector piece with a groove into which the insert piece is inserted and with a guide channel along which the stud pin is led when both pieces are brought into coupling, the free end of the insert piece being shaped as elongated and flat to form a guide surface extending laterally and the connector piece being provided with a projection extending laterally which comes to contact with the guide surface of the insert piece when the insert piece is coupled with the connector piece.

Abstract: A presser foot adapted to be attached to a sewing machine for sewing a concealed type of sliding clasp fastener to a garment fabric or the like, the foot having in its sole or bottom surface a pair of spaced guide grooves. A substantially V-shaped partition is disposed longitudinally centrally of the foot and separates the guide grooves. This partition has an integral projection extending downwardly to register with the bottom surface of the foot and laterally beyond both sides of the partition whereby the folded edge of the concealed fastener is retained in unfolded disposition at the initial stage of sewing operation.

Abstract: An ornamental attachment for being mounted on a slider pull tab for a slide fastener comprises a body having a pair of upper and lower plates between which is defined a channel for receiving therein the slider pull tab, there being means in the channel for locking the pull tab upon full insertion thereof into the channel. An elongate land and a pair of grooves one on each side of the land are provided on at least one of the upper and lower plates, the land being resiliently engageable flatwise with the pull tab for its positional stability in the channel against wobbling movement. The upper and lower plates include a pair of resilient lips between which the pull tab is insertable into the channel, one of the lips having a pair of retainer means for holding the inserted pull tab therebetween against sideways displacement in the channel. Such retainer means may be on a pair of spacers interconnecting the upper and lower plates, the retainer means projecting into the channel toward one another.

Abstract: There is disclosed an adjustable fastening device which comprises an adjustment belt and a slider. The adjustment belt includes a pair of rows of teeth arranged on the front face thereof perpendicularly thereto and legs projected from the back face thereof, and the slider comprises a body portion with a guide groove adapted to guide the belt therealong, and stopper member with claws formed on the back face thereof for engagement with the teeth of the adjustment belt is clippingly mounted on the body portion and is urged by an elastic member in a direction pulling the stopper member out of the body portion, and the adjustment belt is slidably fitted in the guide groove for it.

Abstract: A slider for a slide fastener is assembled essentially with a slider body, a pull tab, a cap-like yoke and means for locking the slider against movement along a pair of rows of fastener elements. The slider body has an upper shield with a pair of first engaging means provided at its front and rear ends, respectively. The upper shield has a plurality of longitudinally extending grooves formed therein. The yoke has a pair of second engaging means at its front and rear end walls and has separated longitudinal bottom edges. The first engaging means interengage with the second engaging means and the lower edges of the yoke are fitted in the groove in the upper shield. The yoke has a projecting surface disposed for engagement with a concaved surface of the upper shield, both surfaces being fused together by ultrasonic welding to provide a rugged slider construction.

Abstract: A slide fastener having at its top end a slider escape mechanism which comprises a cooperative pair of yieldable top stops, and an extra length of fastener elements carried on one of the stringer tapes, such that the slider can be forced past the yieldable top stops to ride onto the extra fastener elements in an emergency and hence to release the other stringer tape. To permit ready withdrawal of the said other stringer tape from the slider, a reinforcing sheet of thermoplastic material or the like is heat-sealed or otherwise attached to its upper end portion, from which at least the bead of the tape is removed. The fastener can be forced open from its top end without pulling the slider down along the rows of interlocking fastener elements.

Abstract: An adjustable fastening device comprises a slider and a rack which cooperate to adjustably fasten two parts of an article, or two separate articles, together. The slider has a guide ridge formed centrally on the internal surface of the top wall of its body, the guide ridge being adapted to be slidably received in a groove extending between two longitudinal rows of intersticed teeth on the rack.

Abstract: An adjustable fastening device broadly comprises a slider and a rack, the slider being slidably mounted astride the rack so as to be releasably locked at any point on the latter for adjustably fastening parts pats of an article, or two separate articles, together. The rack has a pair of transversely registered recesses formed in the respective longitudinal edges thereof to provide a guideway through which the slider can be manipulated to and away from an astride position on the rack.

Abstract: An adjustable fastening device comprises a slider and a rack which cooperate to adjustably fasten two parts of an article, or two separate articles, together. The slider has a pair of ears projecting laterally from the top wall of its body and at least partly elevated above the plane of the top wall. A separate anchoring member is provided which is to be placed over the ears and the intervening top wall portion via one of the article parts. The anchoring member includes a boss to be received in the interspace between the elevated ear portions via the article part, and a plurality of piercing fingers to be thrusted through the article part and to be clinched against the ears.