Spacer bar mechanism

Details Spacer bar mechanism Spacer bar mechanism

1975-01-17

1977-03-08

Rader, Ralph T.

Textiles: fiber preparation

16172, 340365R, B41J 508

Patent

active

040108384

ABSTRACT:
An electronic keyboard is provided with a centrally operable elongated spacer bar that affords a smooth response to depression anywhere along its linear spans, a bail preloadably anchored at various points along the keyboard base being pivotally coupled to the extremities of the spacer bar to effectuate an even load distribution and minimal central drag upon each spacer bar depression, the preloadable anchoring of the bail at the various points along the keyboard base permitting convenient assembly of the spacer bar on the keyboard without the use of tools.

REFERENCES:
patent: 399964 (1889-03-01), Benet
patent: 2618809 (1952-11-01), Rubinoff
patent: 2637460 (1953-05-01), Yates
patent: 3091357 (1963-05-01), Weinhart
patent: 3292761 (1966-12-01), Erpel
patent: 3338369 (1967-08-01), Rexford
patent: 3711685 (1973-01-01), Castle
patent: 3720801 (1973-03-01), Yanaga
patent: 3771636 (1973-11-01), Kerns

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