| 摘要 |
<p>1,163,957. Cutting-out presses. BRITISH UNITED SHOE MACHINERY CO. Ltd. 13 Dec., 1966 [14 Dec., 1965], No. 55752/66. Heading B4B. A cutting press comprises hydraulic piston- and-cylinder means 44, 46 for moving a beam 40 towards a bed 16, whereby to effect a cutting stroke, and thereafter returning the beam to its rest position, and limiting means for adjustably limiting movement of the beam away from the bed whereby the rest position of the beam can be varied, the limiting means comprising a fixed abutment plate 20 associated with the bed 16, an abutment cylinder 66 associated with the beam 40 for movement therewith, and a plurality of superposed T-shaped abutment shims 90, Fig. 2, mounted on the plate 20 and movable selectively into and out of operative position in which they are interposed between the plate 20 and the cylinder 66. The cylinder 66 is secured to the lower end of a tube 60. The shims are pivotally mounted on an axis 76, Fig. 2, and movable clockwise to an operative position by means of springs 98 connected to the ends of the short arms 96 of the shims. The long arm 92 of each shim has a slot 94 engageable with the tube 60. The shims are selectively movable out of operative position by means of a shim stop lever 108, Fig. 2, urged downwardly by a spring 128 and having a shim stop 118 for applying counterclockwise pressure to intermediate legs 106 of the shims, the lever 108 being connected to a handle 104 through the intermediary of a shank portion 126 which is engageable with a comb 124 having a number of teeth equal to the number of shims. Each shim has a lug (100), Figs. 3 and 4 (both not shown), and a recess (102) on its upper and lower faces, respectively, so that when a shim moves to its operative position, it carries with it the shims thereabove to the operative position thereby providing a solid abutment to the cylinder 66.</p> |
