GB227887A - Improvements in or relating to arrangements for operating electrical apparatus - Google Patents

Improvements in or relating to arrangements for operating electrical apparatus

Info

Publication number
GB227887A
GB227887A GB2337723A GB2337723A GB227887A GB 227887 A GB227887 A GB 227887A GB 2337723 A GB2337723 A GB 2337723A GB 2337723 A GB2337723 A GB 2337723A GB 227887 A GB227887 A GB 227887A
Authority
GB
United Kingdom
Prior art keywords
relay
arrangements
relating
class
electrical apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2337723A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Automatic Telephone Manufacturing Co Ltd
Original Assignee
Automatic Telephone Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Automatic Telephone Manufacturing Co Ltd filed Critical Automatic Telephone Manufacturing Co Ltd
Priority to GB2337723A priority Critical patent/GB227887A/en
Publication of GB227887A publication Critical patent/GB227887A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/20—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for producing frequency-selective operation of the relay

Landscapes

  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

227,887. Automatic Telephone Manufacturing Co., Ltd., and Hudd, A. E. Sept. 18, 1923. Electromagnets.-An electrolytic cell having plates of similar material in an electrolyte to which they are chemically inert is connected in a continuouscurrent circuit across an electromagnetic device, such as a relay, to modify its operation. For example, in a railwaysignalling system of the type described in Specifications 193,671 and 200,462, [both in Class 105, Railway signals &c.], the armature 5, Fig. 1, of the polarized relay 4 is arranged to connect an electrolytic cell 9 alternately across a battery 8 and across a relay 1, which may be shunted by a similar cell 10. By adjustment of the constants of the relay circuit 1 this arrangement may be made responsive only to currents above a particular frequency. Specification 160,589, [Class 105, Railway signals &c.], also is referred to.
GB2337723A 1923-09-18 1923-09-18 Improvements in or relating to arrangements for operating electrical apparatus Expired GB227887A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2337723A GB227887A (en) 1923-09-18 1923-09-18 Improvements in or relating to arrangements for operating electrical apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2337723A GB227887A (en) 1923-09-18 1923-09-18 Improvements in or relating to arrangements for operating electrical apparatus

Publications (1)

Publication Number Publication Date
GB227887A true GB227887A (en) 1925-01-19

Family

ID=10194636

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2337723A Expired GB227887A (en) 1923-09-18 1923-09-18 Improvements in or relating to arrangements for operating electrical apparatus

Country Status (1)

Country Link
GB (1) GB227887A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435753A (en) * 1943-10-07 1948-02-10 Cutler Hammer Inc Apparatus for recording the duration of a transient effect
US2466689A (en) * 1943-04-27 1949-04-12 Kenneth L Curtis Condenser fed plural relay system
DE754573C (en) * 1935-12-31 1953-10-26 Int Standard Electric Corp Timing relay

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE754573C (en) * 1935-12-31 1953-10-26 Int Standard Electric Corp Timing relay
US2466689A (en) * 1943-04-27 1949-04-12 Kenneth L Curtis Condenser fed plural relay system
US2435753A (en) * 1943-10-07 1948-02-10 Cutler Hammer Inc Apparatus for recording the duration of a transient effect

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