US PATENT SUBCLASS 234 / 55
WITH MEANS TO STORE AND RETRIEVE INPUT DATA AFTER REMOVAL OF INPUT-IMPULSE

Current as of: June, 1999
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234 /   HD   SELECTIVE CUTTING (E.G., PUNCHING)

55WITH MEANS TO STORE AND RETRIEVE INPUT DATA AFTER REMOVAL OF INPUT-IMPULSE {3}
56  DF  .~> With read-out in different order
57  DF  .~> With optionally settable means to clear storage upon read-out
58  DF  .~> With serial read-out from storage

DEFINITION

Classification: 234/55

(under the class definition) Device provided with means effective to receive a signal or impulse transmitted from an input-means* and to register and retain a distinctive record thereof, after cessation thereof and further means effective to read said record and to transmit a corresponding control impulse to the tool selection means.

(1) Note. For inclusion in this or an indented subclass, a patent must claim means which is selectively conditioned by a signal or impulse transmitted by an input-means and which, at some time thereafter, takes part in the generation or transmission of another signal or impulse, representative of the first, as determined by such selective conditioning.

(2) Note. To constitute data storage there must be retention of distinctive information after removal of the input-impulse (e.g., retraction of the depressed key) and before the corresponding tool selection has been effected.

(3) Note. Storage may be effected by a recording mechanism, (such as a tape punch), and a sensing means, so arranged that data stored in the tape is later utilized to control tool selection.

(4) Note. Fig. 8 illustrates the essentials of one type of storage system. Depression of any key K energizes an associated storage relay SR, which remains energized over a circuit including its hold contacts a. When at some later time, read-out contacts R-O are closed, circuits are completed through contacts b of all energized relays, thus energizing the associated magnets M and positioning interposers I in readiness to actuate tools T upon the next stroke of ram H. (In practice, relays SR would ordinarily be restored after the read-out, by opening their holding circuits). [figure]

SEE OR SEARCH THIS CLASS, SUBCLASS:

25+, for control of auxiliary mechanism by detection of predetermined indicia, which may involve storage of such indicia.

26, for comparison of "group numbers" for auxiliary control purposes, which may involve storage of such numbers for control purposes rather than for read-out to recording means.

90, for means to delay the effectiveness of tool selection; e.g., the so-called "one-stroke storage" feature.

92+, for means optionally settable to retain or clear a selection of tools after their actuation.

SEE OR SEARCH CLASS

235, Registers, appropriate subclasses for a calculating machine having data storage and output punching features.

365, Static Information Storage and Retrieval, appropriate subclasses for electrical means to store data.