Spring powered swing

Details Spring powered swing Spring powered swing

1978-01-09

1980-01-01

Pinkham, Richard C.

Undertaking

A63G 916

Patent

active

041812999

ABSTRACT:
A spring powered swing incorporating a frame supporting a swing seat for to and fro movement, a spring motor assembly within a sealed enclosure and having a male coupling head detachably engageable with a female component formed on said swing; there being a crank-controlled escapement provided with said spring motor assembly productive of incremental release of power stored in said spring. The swing seat support and the escapement crank are operatively detachably interengageable.

REFERENCES:
patent: 803838 (1906-11-01), Mellen
patent: 2787948 (1957-04-01), Mathis
patent: 3342484 (1967-09-01), Christensen
patent: 3692305 (1972-09-01), Allen
patent: 3806117 (1974-04-01), Foster

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