Apparatus for the manufacture of disc records

Details Apparatus for the manufacture of disc records Apparatus for the manufacture of disc records

1975-09-16

1977-07-26

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Preform severing means

Means forming from bulk and downstream severing means

425112, 425116, 425810, B29D 1700

Patent

active

040380092

ABSTRACT:
In the production of disc records the disc is formed with flash attached around it. A method of trimming the flash from the disc is to place the disc with flash attached on a support no larger than the disc and cut the flash around the edge of the disc to separate a ring of flash. The trimmed disc is held up and the flash falls to be swept away beneath it. The flash is preferably cut through at a web round the disc with a heated knife blade. Apparatus including a turntable and central record clamp is described and the integration of trimming apparatus into an automatic record press to use the transfer sled is also described.

REFERENCES:
patent: 2743478 (1956-05-01), Harlow et al.
patent: 3186029 (1965-06-01), Joseph
patent: 3329997 (1967-07-01), Rand et al.
patent: 3514813 (1970-06-01), Westermann
patent: 3526690 (1970-09-01), Bachman
patent: 3662051 (1972-05-01), Harlow et al.
patent: 3663136 (1972-05-01), Westermann
patent: 3702749 (1972-11-01), Flusfeder et al.
patent: 3833328 (1974-09-01), Palmer et al.

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