| 摘要 |
<p>972,997. Machinery guards. F. DRUMMER. May 19, 1961 [May 23, 1960], No. 18271/61. Heading F2J. [Also in Divisions B4 and B5] In an apparatus for cutting out articles from a plastic foil plate 11 (see Divisions B4 and B5), a pair of safety devices for the operator each comprise a flap 42 which, upon deflection out of the vertical position, operates a reversing switch in the motor circuit for driving a pair of rolls 18, 19 between which the plate 11, a cutter 13 and a backing plate 14 are fed, and a cover 43.</p> |
