| 摘要 |
<p>914,695. Shearing. RHODES & SONS Ltd., JOSEPH. Nov. 25, 1960 [Dec. 18, 1959], No. 43044/59. Addition to 884,989. Class 83 (4). In a plate shear as described in the parent Specification, the pivot shaft about which the beam carrying the movable blade is pivoted is adjustable axially of itself to vary the clearance between the blades. The bladecarrying beam 5 is fixed to a housing 6 mounted by roller bearings 7, 9, 10 on the pivot shaft 1. The pivot shaft 1 is axially slidable in fixed bearings 2, 20 and carries adjustable abutments 25, 26. A rod 22 rotatably mounted in the bearing 20 has a reduced eccentric portion 23, and two plungers 24 located in the bore parallel to the axis of the pivot shaft 1 are positioned between the eccentric portion 23 and the abutments 25, 26. Rotation of the rod 22 by a handle 30 thus moves the pivot shaft 1 to alter the blade clearance.</p> |
