Abstract: A controlled lathe having a rotatable main spindle with a hollow interior and a plurality of radially adjustable guide bodies for guiding a rod having a portion located within the hollow interior of the main spindle. Each guide body rests on a support body and is adjustable with respect to the support body by an axially movable inner tube located within the hollow interior of the main spindle. Axial movement of the inner tube to adjust the guide bodies is effected by an adjusting member which is mounted on the end of the inner tube and which is rotatable with the main spindle during normal lathe operation. The adjusting member is threadedly connected to a member which is attached to the main spindle, and a holding device secures the adjusting member against rotation when the guide bodies are to be adjusted which causes axial movement of the adjusting member and the inner tube due to the threaded connection.

Abstract: A gripper comprises two supporting coupling members (18) each adapted to be coupled with an exchangeable gripping jaw (20) and clamped together by a coupling plug (26), a transversely displaceable locking member (36) and a spring assembly (60) in the longitudinal direction of the coupling plug (26). The locking member (36) has two opposed surfaces (52,54) for application of external forces by which it is movable into release and locking positions and further includes a wedge surface (40) which cooperates with a limiting surface (32) formed at the coupling plug (26) when the locking member (36) is moved into locking position, tensioning the spring assembly (60). In the operating range of the gripping jaws (20) there is provided a jaw deposit (70) against which both locking members (36) are adapted to be pressed selectively by one each of their two surfaces (52,54) so as to be moved into the release position or into the locking position.

Abstract: A numerically controlled turning machine comprises a main spindle (H.sub.s) and at least two cross slides (K.sub.1,K.sub.2) each provided with a saddle (W.sub.1 and W.sub.2, respectively). Another saddle (W.sub.3) is provided at the main spindle end. The cross slide (K.sub.1) is provided in addition with a driven tail spindle (G.sub.s). The control of the machine is subdivided into a first control system which includes X-axis and Z-axis controls as well as C-axis control with positional adjustment and a second control system which does not have any C-axis control but does include X-axis and Z-axis controls.

Abstract: At least two telescopically interengaging cover members (20, 22 or 30, 32, 34) are associated with each of two or more parallel guide means (12, 14). They are displaceable with respect to each other irrespective of the cover members of the or each other guide means. The cover members (20, 22) of a first one (12) of two adjacent guide means (12, 14) each comprise an elastic apron (26) along their respective edge facing the second one (14) of these guide means. The apron lies in sliding contact on the cover members (30, 32, 34) of the second guide means (14). In this manner the or each space between guide means (12, 14) is covered in addition to the guide means themselves. And yet the cover members (20, 22 or 30, 32, 34) associated with the different guide means (12, 14) remain movable independently.