Split tubular member for coupling a tonearm to a speaker cone

Details Split tubular member for coupling a tonearm to a speaker cone Split tubular member for coupling a tonearm to a speaker cone

1981-01-23

1982-09-07

Haroian, Harry N.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Mechanical modification or sensing of storage medium

369 63, G11B 300

Patent

active

043487556

ABSTRACT:
The piston portion of a coupling for a mechanical phonograph is split lengthwise and joined together at a closed end by a living hinge so that the compression spring which biases the piston against the tonearm will exert a spreading force to the piston conforming it to the inside diameter of the cylinder or collar on the speaker cone, thereby achieving the close clearance required to transmit recorded sound vibrations to the speaker cone.

REFERENCES:
patent: 3095201 (1963-06-01), Ryan
patent: 3529832 (1970-09-01), Goetz et al.
patent: 3666274 (1972-05-01), Fox et al.

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