| 摘要 |
<p>421,302. Racket-presses. LEISNER, R. W., Vesteraat, Voksenlia, Oslo, Norway. Nov. 23, 1933, No. 32736. Convention date, May 18. Addition to 382,092. [Class 132 (ii)] The casing members described in the parent Specification are replaced by horseshoe-shaped frame members 1, 2 reinforced by spiders 4, and combined with a protective casing 5, for example, of impregnated fabric. The casing 5 is closed by a sliding-clasp fastener 6, and is independent of, or connected to one of the frame members 1, 2. The elastic pressure member of the parent Specification is replaced by a horseshoe-shaped element 8, Fig. 4, resiliently mounted by springs 9 on the member 2, or by a rubber strip mounted on member 2. The members 1, 2 are pivoted at 3, and clamped together at 7 by lever mechanisms shown in Figs. 4, 5 respectively.</p> |
