Disc record stamper alignment

Details Disc record stamper alignment Disc record stamper alignment

1983-09-16

1985-07-09

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Press forming apparatus having opposed press members

Pressure applying member mounted for arcuate motion

264107, 425810, B29C 100

Patent

active

045279713

ABSTRACT:
An upper press block for a disc record press comprises a support member surrounding a mould member to which a stamper plate is fixed. Means for adjusting the axis of the stamper plate relative to the support member are provided by four lever arms evenly spaced around the mould member, each lever arm being pivotally mounted to the support member and engaging the periphery of the mould member. Each lever arm is disposed between two opposing cams which may be rotated to adjust the mould block position in a lockable manner.

REFERENCES:
patent: 660486 (1900-10-01), Brown
patent: 930077 (1909-08-01), Knobelsdorf
patent: 1622678 (1927-03-01), Schramm
patent: 1916996 (1933-07-01), Somner
patent: 4185955 (1980-01-01), Holmes et al.
IBM Technical Disclosure Bulletin, vol. 12, No. 6, M. A. Wilke, Nov. 1969, pp. 837, 838.

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