| 摘要 |
<p>1477942 Shearing PROMECAM SISSONLEHMANN 4 Feb 1975 [8 Feb 1974] 4733/75 Heading B3W The movable blade 4 of a shear is pivoted about an axis A-B located in a plane bisecting the rake angle a with the blade 4 makes with the fixed blade 2 and substantially normal to the plane which contains both cutting edges. The fixed blade 2 may be horizontal or, as shown, both blades are inclined to the horizontal, a stop (not shown) for aligning a plate to be cut projecting upwardly from the lower end of the fixed blade.</p> |
