Professor Butts and the Self-Operating Napkin. The "Self-Operating Napkin" is activated when the soup spoon (A) is raised to mouth, pulling string (B)

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Presentation transcript:

Professor Butts and the Self-Operating Napkin. The "Self-Operating Napkin" is activated when the soup spoon (A) is raised to mouth, pulling string (B) and thereby jerking ladle (C) which throws cracker (D) past parrot (E). Parrot jumps after cracker and perch (F) tilts, upsetting seeds (G) into pail (H). Extra weight in pail pulls cord (I), which opens and lights automatic cigar lighter (J), setting off skyrocket (K) which causes sickle (L) to cut string (M) and allow the pendulum with the attached napkin to swing back and forth, thereby wiping chin.

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