Abstract: The invention relates to a system for producing a particularly rotationally symmetrical glass container, such as a glass syringe, a glass carpule, a glass vial, or a glass ampoule, from a particularly rotationally symmetrical glass tube blank, which defines a rotational axis, comprising a chuck for mounting the glass tube blank in a rotating manner, a length-cutting device for cutting to length glass containers of predetermined length from the glass tube blank, and an air bearing, which is arranged downstream of the chuck and upstream of the length-cutting device, for contactlessly mounting the glass tube blank.

Abstract: Machine chuck jaws, and a related method of manufacture, are provided. The machine chuck jaws are formed from an additive manufacturing process and include one or more gripping pads per chuck jaw. An axial stop is also formed from an additive manufacturing process and provides a flat surface for workpiece placement. The gripping pads equally distribute the clamping pressure, and the additive manufacturing process provides unique shaping capabilities and a honeycomb internal cross-section, thereby achieving a lightweight design. The reduction in weight allows for a decrease in pneumatic pressure used to actuate the jaws, resulting in a corresponding reduction in the clamping pressure which helps improve the form of the workpiece being machined.

Abstract: A non-surface marring work piece lathe mate pad which is interposed and held between the work piece and a lathe's chuck jaws. Each lathe mate has two grooved surfaces extending around three of its sides and flattened front and back surfaces which engage the work piece and lathe's chuck jaw. Disposed within these grooves are two continuous expandable strap members which extend around the lathe mates and the chuck jaws to retain them in place. These end grooves in each lathe mate prevent slipping of the expansion members with respect to rotatable work piece holding chuck jaws.

Abstract: A keyless chuck assembly for a hand-held drill includes a housing, three jaws for gripping a drill which is to be turned by the drill chuck assembly. The jaws are retained in the assembly and confined to radial motion with respect to the drive shaft by means of T-shaped guide slots in the bottom of the drive shaft and cooperating T-shaped ribs on the tops of the jaws. The jaws have a gripping surface and a cam surface. A rotatable adjusting ring engages the jaws to move them in the radial direction to secure and release the drill bit. The jaws can include a resilient material between the gripping surface and the cam surface to allow the chuck jaws to more securely grip the drill bit. A locking mechanism prevents rotation of the ring which would allow the jaws to open.

Abstract: The jaws of a clamp are provided with elastomeric linings, and gripping elements of high hardness in the form of pins or particles are embedded in the linings. The gripping elements have tips which are directed away from the respective jaws.

Abstract: A boregrinding chuck assembly includes a plurality of arrow-shaped jaws that each includes a head that is in the shape of an isosceles triangle with the apex angle thereof just slightly less than 360.degree. divided by the total number of jaws in the assembly so that there is a small gap defined between adjacent jaws when such jaws are holding a workpiece in position for a boregrinding operation. Each jaw includes a set of marking lines that are located to define a workpiece-engaging circle that has a diameter just slightly smaller than the outer diameter of the workpiece to securely hold such workpiece when all of the jaws are engaged against the workpiece. The jaws are customized by cutting the heads along the marking lines that are appropriate to the particular workpiece.