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Punched card readers

阅读:965发布:2023-08-01

专利汇可以提供Punched card readers专利检索,专利查询,专利分析的服务。并且A reader for punched cards or tapes having a plurality of spring mounted probes, one for each hole position. A card or tape is sensed by the probes and when no hole is under the probe, the spring is compressed. When a hole is sensed, the probe enters the hole and two electrical contacts are joined, thereby providing an electrical current which identifies the hole position in a load circuit.,下面是Punched card readers专利的具体信息内容。

1. A punched card reader comprising a plurality of sensing probes positioned in a row and formed from a single spring wire, movable support means for retaining the probes in positions above the holes in a punched data card, movable electrical contact means formed as part of the spring wire and positioned above the probes, stationary electrical contacts secured to insulator supports and disposed under said movable contact means for contact by the contact means when the movable support is lowered and a probe penetrates a hole in the card.
2. A punched card reader as claimed in claim 1 wherein each movable electrical contact forms an angle less than a right angle with its associated probe whereby a wiping action of the flange on its contact is obtained.
3. A reader as claimed in claim 1 wherein said movable support means includes a common supporting plate and a plurality of rods, each of said rods partly surrounded by spring wire.
4. A reader as claimed in claim 1 wherein said probes are formed by bent portions of the spring wire.
5. A reader as claimed in claim 1 wherein the stationary contacts include two conductive terminals positioned adjoining a cavity between said insulator supports through which the probe is eNtered.
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