GB579659A - Improvements in electro-magnetically operated timing mechanisms - Google Patents

Improvements in electro-magnetically operated timing mechanisms

Info

Publication number
GB579659A
GB579659A GB17047/43A GB1704743A GB579659A GB 579659 A GB579659 A GB 579659A GB 17047/43 A GB17047/43 A GB 17047/43A GB 1704743 A GB1704743 A GB 1704743A GB 579659 A GB579659 A GB 579659A
Authority
GB
United Kingdom
Prior art keywords
switch
contacts
contact
relay
pulses
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
GB17047/43A
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.)
DENIS OWEN BURNS
WILLIAM HYDE HASTINGS KELK
Original Assignee
DENIS OWEN BURNS
WILLIAM HYDE HASTINGS KELK
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 DENIS OWEN BURNS, WILLIAM HYDE HASTINGS KELK filed Critical DENIS OWEN BURNS
Priority to GB17047/43A priority Critical patent/GB579659A/en
Priority to US608678A priority patent/US2442497A/en
Publication of GB579659A publication Critical patent/GB579659A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B28/00—Generation of oscillations by methods not covered by groups H03B5/00 - H03B27/00, including modification of the waveform to produce sinusoidal oscillations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

579,659. Electromagnetically - operated timing mechanism for bomb dropping &c. KELK, W. H. H., and BURNS, D. O. Oct. 18, 1943, No. 17047. [Class 38 (ii)] [Also in Group XXXVII] A train of electrical pulses of a frequency that is a sub-multiple of a fundamental frequency is obtained by feeding the " fundamental " pulses successively to the contacts of a rotary uniselector switch T<2> that is operated step by step in time with the pulses and connecting, say, every second or every fifth or every tenth contact of the switch T<2> to an outgoing line a by means of a preselector switch X. In the form shown, pulses at the fundamental frequency are generated by two cross-connected relays AP, BP the timing of which is varied by adjusting the resistance BPR in series with an extra winding of the relay BP. These relays are first set in operation by momentarily closing a switch FS. This energizes a relay FR closing a maintaining circuit at FR and also completes the circuit to the relays AP, BP which alternately energize and de-energize each other. Each time the relay coil AP<3> is energized contacts AP<2> and AP<3> are also closed. The latter causes the energization of the magnet TS4 which steps round the uniselector switch having two banks of contacts T\ T<2>. The contacts T<1> bring into play another positive terminal so that, even if a " stop " switch Y is opened the uniselector switch will continue to step round till the left hand contact T<1> is again on contact 1. The switch AP<2> conveys current to the second bank of contacts T<2> and every fiftieth or twenty-fifth or tenth or fifth or second contact of this bank is connected to the line a by moving the preselector switch X to an appropriate position. The switch X consists of two contact arms x<1> and a contact disc x<1> which move together and engage fixed contacts indicated by arrows. Thus a selected submultiple frequency is delivered to the line a which may energize a relay OR and operate a switch OR at this submultiple frequency. The arrangement may be used for dropping bombs at selected time intervals. Specification 478,391, [Group XXXVII], is referred to.
GB17047/43A 1943-10-18 1943-10-18 Improvements in electro-magnetically operated timing mechanisms Expired GB579659A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB17047/43A GB579659A (en) 1943-10-18 1943-10-18 Improvements in electro-magnetically operated timing mechanisms
US608678A US2442497A (en) 1943-10-18 1945-08-03 Electromagnetically operated timing mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17047/43A GB579659A (en) 1943-10-18 1943-10-18 Improvements in electro-magnetically operated timing mechanisms

Publications (1)

Publication Number Publication Date
GB579659A true GB579659A (en) 1946-08-12

Family

ID=10088297

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17047/43A Expired GB579659A (en) 1943-10-18 1943-10-18 Improvements in electro-magnetically operated timing mechanisms

Country Status (2)

Country Link
US (1) US2442497A (en)
GB (1) GB579659A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737236A (en) * 1956-03-06 Timing mechanism
US2674734A (en) * 1950-07-20 1954-04-06 Automatic Elect Lab Electronic ringing frequency generator
US2645767A (en) * 1951-01-26 1953-07-14 Socony Vacuum Oil Co Inc Electromechanical interval timer
US2763792A (en) * 1952-10-16 1956-09-18 William F Bloom Electrical impulse timing instrument

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US929602A (en) * 1904-04-11 1909-07-27 Morkrum Company Transmitter for electric telegraphs and the like.
US1424328A (en) * 1920-06-01 1922-08-01 Verrando Carlo Controlling device for electric circuits
US1653736A (en) * 1924-07-11 1927-12-27 American Telephone & Telegraph Impulse-registering device
US1957672A (en) * 1927-03-30 1934-05-08 Associated Electric Lab Inc Telephone system
US2144033A (en) * 1937-02-11 1939-01-17 Bendix Prod Corp Electrical timing control
NL60415C (en) * 1937-04-15
US2384792A (en) * 1942-12-03 1945-09-18 Westinghouse Electric Corp Impulse metering system

Also Published As

Publication number Publication date
US2442497A (en) 1948-06-01

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