| 摘要 |
A keyboard operated composing machine comprising a plurality of members which effect selection of printing characters and certain other functions of the machine. Each character or function selection member has a corresponding key on the keyboard and projects into proximity to a corresponding drive element operatively connected to a cage, which is intermittently reciprocated by a power driven mechanism, when one of the keys is depressed a predetermined distance. Means are provided for selectively placing a drive element and particular selection member into engagement when a corresponding key is depressed. Further depression of the key actuates the power driven mechanism for reciprocating the cage through one cycle, thereby driving the engaged member to effect selection of the printing character or machine function corresponding to the depressed key. The design of the keyboard is such that existing manually operated machines can be readily converted to power driven ones without drastically reorganizing the basic structure of the machine.
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