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    • 6. 发明专利
    • Improvements in machines for finishing the edges of leather
    • GB643274A
    • 1950-09-15
    • GB3437646
    • 1946-11-20
    • ALESSANDRO TOSIROBERTO TOSI
    • C14B11/00
    • 643,274. Finishing edges of sheet material. TOSI, A., and TOSI, R. Nov. 20, 1946, No. 34376. Convention date, Nov. 24, 1945. [Class 42 (i)] A machine for burning the edges of pieces of leather comprises an intermittently acting feeding device which locates their edges beneath an adjacent vertically reciprocating electricallyheated element, means for actuating these in such a way that the operative stroke of the heated element takes place during the non- operating stroke of the feeding device, and a resting plane for the leather, the arrangement being such that no penetration of either the leather or the plane takes place. The machine comprises a base 2 with an overhanging arm 1 in which a spring-loaded, vertically-movable foot 3 is carried. The lower end of this rests on a feeding device 4 similar to that of a sewing- machine. A heated point 5 is carried on a frame 6, sliding vertically on guides 7 and oscillated by an eccentric 8 on the shaft 9 and driven in synchronism with the feeding device 4. The point 5 is prevented by means of the adjustable stem 11 from penetrating the leather or the plane 10, on which the leather rests, and which is urged upwardly by the spring 12.