| 摘要 |
1,149,276. Adjustable extrusion dies. ALLGEMEINE MASCHINENBAU G.m.b.H. 18 July, 1966 [29 July, 1965], No. 32090/66. Heading B5A. A mandrel 7 of a tube-extrusion die la, 1b is provided at its upstream end 6 with a valve 11 which is movable longitudinally into passageway 16 by rotation of hand wheel 12 and consequent movement of a bell-crank lever 15. A ring 3 gripped between die parts la, 1b is connected to a further ring 5 by ribs 4 through one of which extends spindle 13 of wheel 12. Valve 11 may have an extension 17 which is movable into inlet 18 and the die may have attached a sizing die 10. |
