Playground turntable

Details Playground turntable Playground turntable

1977-04-25

1978-10-10

Pinkham, Richard C.

Undertaking

188 8284, 188 829, 192 46, A63G 112

Patent

active

041193105

ABSTRACT:
A merry-go-round or playground turntable comprises a rotatable platform, a fixed shaft segment coaxially supporting the platform, a rotatable shaft segment, a ratchet drive coaxially coupling the rotatable shaft segment to the fixed shaft segment, and a hand wheel mounted to the rotatable shaft segment. The turntable is operable to rotate in only one direction is response to torque applied to the hand wheel by at least one operator, typically a young or handicapped child, supported on the platform. The ratchet drive permits the operator to turn the platform while continuously grasping the hand wheel.

REFERENCES:
patent: 615614 (1898-12-01), Flood
patent: 943276 (1909-12-01), Setecka et al.
patent: 1142970 (1915-06-01), Koehler
patent: 1330407 (1920-02-01), Svenson
patent: 1629585 (1927-05-01), Oulton
patent: 1878758 (1932-09-01), Clayton
patent: 2060376 (1936-11-01), Jex
patent: 3170687 (1965-02-01), Lugger
patent: 3612518 (1971-10-01), Bennett
J. E. Burke Company Catalog, New Brunswick, N. J., Received Feb. 19, 1975, p. 31, Merry-Go-Round.
Miracle Equipment Company Catalog Sampler #500, Grinnell, Iowa, 50112, Received Feb. 24, 1966, p. 8, Miracle Mustang Whirl.

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