Tender-mounted sound system for toy steam locomotive

Details Tender-mounted sound system for toy steam locomotive Tender-mounted sound system for toy steam locomotive

1982-01-27

1984-05-29

Reeves, Robert B.

Railways

Car-carried propulsion system

Electric

46232, 104296, 104DIG1, 105 1T, A63H 1734, B60L 100

Patent

active

044507720

ABSTRACT:
The sound-of-steam producing system is completely mounted on the tender intended to be pulled by a toy electric locomotive. The system includes a switch mechanism included in the circuit of a module which energizes a speaker to simulate the puffing sound of a real locomotive. The switch mechanism is opened and closed by a roller mechanism comprising a pair of rollers having their diameters ratioed in accordance with the relative diameters of the locomotive's drive wheels and the tender's wheels, whereby the puffing sound is precisely synchronized with the rotation of drive wheels of the locomotive.

REFERENCES:
patent: 1889918 (1932-12-01), Howser, Jr.
patent: 3466797 (1969-09-01), Hellsund
patent: 3664060 (1972-05-01), Longnecker
patent: 3839822 (1974-10-01), Rexford
patent: 4266368 (1981-05-01), Nyman

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