Music – Instruments – Automatic
Patent
1997-01-21
1999-02-02
Shoop, Jr., William M.
Music
Instruments
Automatic
84 952, 84 941, 84 942, G10F 106
Patent
active
058668284
ABSTRACT:
A musical box including a base, a seat having a casing and fixedly mounted on the base, a spiral spring fitted within the casing, a drum having a first end and a second end and drum including a plurality of protuberances thereon, a gear fixedly mounted on the first end of the drum, a gear train connected to the spring and engaging the gear, a hitting member fixedly mounted on the seat and having a plurality of tines in contact with the drum, a fixed plate fixedly mounted on the seat and formed with two horizontal slots and a circular hole between the slots, a movable plate having two upright arms at two opposite ends and slidably engaged with the fixed plate by two guiding members extending through the slots to engage with the movable plate, the drum being provided at second end with an axle extending through the movable plate and the circular hole of the fixed plate to engage with a disk, the disk having an eccentric hole engaged with an end of a crank, and the crank having another end connected with one of the guiding members.
REFERENCES:
patent: 5430238 (1995-07-01), Chen
patent: 5510571 (1996-04-01), Chen
patent: 5523523 (1996-06-01), Chen
patent: 5561253 (1996-10-01), Chen
patent: 5571979 (1996-11-01), Chen
Lockett Kim
Shoop Jr. William M.
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