| 摘要 |
603,708. Turning; steady rests. SAUNDERS, A. Aug. 31, 1944, No. 16564. Addition to 545,040. [Class 83 (iiil] A roller tool box of the type described in the parent Specification in which steady rollers are carried by levers concentrically adjustable by means of a screwed cone, has the rollers each supported upon a roller spindle through the intermediary of two sets of balls. The spindles L have enlarged head portions stepped down to a reduced diameter to form the shanks and each roller K has internal recesses at either side to provide ball-race tracks whilst a thrust washer K<SP>1</SP> is received over the shanks and contacts the stepped portions to form part of the ball-race track on one side of the roller, the other inner ball-race track being formed by a flanged portion L<SP>1</SP> of the spindle, the shanks of the spindles being associated with means 6 for displaceably anchoring them and the head portions having means G<SP>1</SP> permitting them to be turned to free the spindles for adjustment. |
