Recorders – Combined with external recorder operating means – Plural external means for one recording couple
Patent
1976-07-22
1978-02-14
Miller, Jr., George H.
Recorders
Combined with external recorder operating means
Plural external means for one recording couple
200 11G, G01D 900, H01H 1958
Patent
active
040742741
ABSTRACT:
A multipoint recorder of the type used to monitor a number of measuring instruments and including a mechanism having a group of contacts for sequentially selecting signals from a number of measuring points, a self-balancing circuit having a balancing motor for intermittently measuring each of said signals, and an indicating and recording mechanism operated in synchronism with said selection mechanism for indicating and recording, e.g., on a strip chart, the group of measurements supplied by said self-balancing circuit. The multipoint recorder is characterized by a group of auxiliary contacts in said selection mechanism interspersed with the group of measuring point selection contacts, said auxiliary contacts being switched with a given delay behind switching of the measuring point selection contacts so that the auxiliary contacts are sequentially closed as the selection mechanism switches between measuring point selection contacts. In response to the switching of said auxiliary contacts, means are provided for locking said balancing motor or performing alarm operations or other functions while the selection mechanism switches from one measuring point to another.
REFERENCES:
patent: 3093003 (1963-06-01), Cochinal et al.
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patent: 3321767 (1967-05-01), Fulchino
patent: 3553712 (1971-01-01), MacMullan et al.
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patent: 3683404 (1972-08-01), Dennis et al.
patent: 4038504 (1977-07-01), McAnulty et al.
Wolfheimer, A. D., Station Selection Device, Jan. 1967, IBM Technical Disclosure Bulletin, vol. 9, No. 8, p. 975.
Fujita Hisaya
Kaieda Nobuo
Kawakami Kenji
Sato Setsuo
Miller Jr. George H.
Yokogawa Electric Works, Ltd.
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