Changeable display apparatus

Amusement devices: games – Surface projectile game; game element – Ball games

Patent

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Details

40 65, 273138A, A63D 1300

Patent

active

039933121

ABSTRACT:
In a pin ball game apparatus a Bingo-type score card having a shiftable mask plate associated therewith for changing the score value of a winning combination where the mask plate is reciprocably movable vertically in opposite directions from a center position relative to the score card by a rotatable cam connected to a lever arm supporting the mask plate, a locking mechanism associated with the lever arm which restrains the movement of the mask plate away from the center position in at least one direction, and a spring biased linkage interposed between the rotatable cam and the lever arm which permits the cam to be rotated 360.degree. while the locking mechanism restrains movement of the mask plate away from the center position in at least one direction.

REFERENCES:
patent: 2882057 (1959-04-01), Hooker
patent: 2932517 (1960-04-01), Hooker et al.
patent: 3399896 (1968-09-01), Burnside

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