Push-button type tuning apparatus

Details Push-button type tuning apparatus Push-button type tuning apparatus

1979-04-03

1981-03-10

Herrmann, Allan D.

Machine element or mechanism

Shaft operators

Preselected position

74 1037, F16H 3518, G05G 102

Patent

active

042546656

ABSTRACT:
A push-button type tuning apparatus comprises a frame structure having a pair of opposing support plates provided with support openings, push-buttons each comprised of a button and a slide plate fitted into the support openings in the pair of support plates in a slidable manner, and a resilient restriction member provided on at least one of the support plates and disposed near the slide plates. The restriction member urges the slide plates to press against one edge of the support opening thereby to restrict the positions of the push-buttons at lease when they are pushed, thereby ensuring accurate preset tuning and retuning.

REFERENCES:
patent: 2205844 (1940-06-01), Clements
patent: 2305805 (1942-12-01), Caletti
patent: 2365088 (1944-12-01), Lane et al.

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