Electricity: motive power systems – With particular motor-driven load device – Power- or motion-transmitting mechanism
Patent
1978-12-28
1981-06-02
Smith, Jr., David
Electricity: motive power systems
With particular motor-driven load device
Power- or motion-transmitting mechanism
74202, 46248, 46251, H02P 1500
Patent
active
042713781
ABSTRACT:
A simplified reversible drive especially adapted for models and toys, utilizing two parallel and spaced apart drive discs with opposing faces rotating together in tandem, a third reversibly driven disc disposed between and perpendicular to the pair of discs, and means to selectively bias the third disc against either one of the said opposing disc faces to produce selected rotation in one direction, and against the other opposing face to produce selected rotation in the other direction, all of which is easily assembled by a hobbyist, without the use of special tools, and incorporating in a light and/or sound effect producing circuit including a motor for rotating the drive discs, a background sound effect and lighting effect producing circuit element connected in series with the armature of the motor, and a normally open magnetically operated switch which is periodically closed by a magnet mounted on one of the discs to produce punctual sound effects.
REFERENCES:
patent: 751878 (1904-02-01), Spangler
patent: 807176 (1905-12-01), King
patent: 906931 (1908-12-01), Sohn et al.
patent: 2468453 (1949-04-01), Mallentoer
patent: 2618161 (1952-11-01), Mason
patent: 3389317 (1968-06-01), Prewitt
patent: 3481213 (1969-12-01), Macchia
patent: 3896914 (1975-07-01), Konsbruck
Higgins Willis J.
Maxwell William H.
Smith Jr. David
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