22-11-1978 дата публикации
Номер: GB0001532744A
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... 1532744 Dartboards; darts ARACHNID INC 30 May 1977 22828/77 Heading A6S A dartboard mounted in a casing 13, Fig. 1, containing electronic circuitry (not further described) which causes the scores of individual players to be displayed on panels 14, 16, comprises a number of separate segments 23, Figs. 2, 3, 4, one for each scoring area, movable inwards against spring biass when hit by a dart and each formed with holes 24 (see also Figs. 6, 7) to receive and grip the point of a dart, the inward movement of each segment 23 momentarily closing an associated switch in the circuitry which then adds the appropriate score to the player's total. A switch 15, Fig. 1, selects which panel 14, 16 is operative. Each segment 23 is mounted within a closed-ended container 40, Fig. 4, fast with one end of a rod 45 slidable through a main support plate 33 and connected to a spring contact 46 of a small switch 49 momentarily closed when the segment is hit by a dart, the spring contact then opening the switch ...
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