| 摘要 |
<p>PCT No. PCT/EP82/00054 Sec. 371 Date Nov. 29, 1982 Sec. 102(e) Date Nov. 29, 1982 PCT Filed Mar. 13, 1982 PCT Pub. No. WO82/03383 PCT Pub. Date Oct. 14, 1982.A feeding device has the object to ensure the supply of a continuously flowing glass strand and to divide it into predetermined gobs thus establishing the weight of the individual gob and thereafter to proceed with the final sectioning. It is known to activate the drives of the moving mechanical parts of such a feeding device by compressed air. Because of the compressibility of the air, and depending, among others, on the length of the piping, its clear cross section and the prevailing air pressure, an accurate control is not possible, especially when the masses to be moved are large. In order to avoid these disadvantages, the invention makes use of hydraulic piston units for the drive of the translatory movement of the stopper and of the pipe and the use of a hydraulic rotary piston for the rotational movement of the cutting device. The turning movement of the pipe is achieved through a hydraulic rotary piston.</p> |
