| 摘要 |
947,069. Machine tool details. EDOUARD DUBIED ET CIE (S.A.). Sept. 7, 1960 [Sept. 10, 1959], No. 30878/60. Heading B3B. In a machine tool, a piston 2 actuates a chuck-operating rod 1 and rotates together with a cylinder 4, fluid being conducted to each side of the piston by way of passages between pairs of sealing rings 9<SP>1</SP>, 9<SP>11</SP>, 9<SP>111</SP>, in a stationary distributer bush 7. The rings are retained by a ring 10 and are spaced by axially-movable rings 8. Oil leakage lubricates and cools the parts. |
