Abstract: A zipper has a pair of independently movable sliders, each of the sliders having a pull. The pulls have apertures through which U-shaped projections from the sliders extend, in order to loosely pivotally capture the pulls. The apertures of the pulls are elongated, so that the aperture may fit over the U-shaped projection of the other slider. Locking holes are provided extending through the U-shaped projections. The apertures of the pulls have unbroken edges, to maintain the strength of the pulls.

Abstract: A slider which automatically locks in any desired position on a pair of stringers to which it is attached, which can be moved in either direction by moving its pull, and which may be locked for security purposes by means of a small padlock. A yoke is pivotally mounted on the slider body and has a portion extending through a hole in the slider body to lockably engage the stringers. The pull has a cross bar which engages a cam surface of the yoke to unlock the same from the stringers when the pull is moved. A protuberance on the slider body has a transverse hole situated above a portion of the yoke, so that the padlock inserted through the hole prevents movement of the yoke out of locking engagement with the stringers.