GB164028A - Improvements in or relating to apparatus adapted to be actuated by means of subaqueous explosions - Google Patents

Improvements in or relating to apparatus adapted to be actuated by means of subaqueous explosions

Info

Publication number
GB164028A
GB164028A GB595119A GB595119A GB164028A GB 164028 A GB164028 A GB 164028A GB 595119 A GB595119 A GB 595119A GB 595119 A GB595119 A GB 595119A GB 164028 A GB164028 A GB 164028A
Authority
GB
United Kingdom
Prior art keywords
relay
circuit
contacts
explosions
actuated
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
GB595119A
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.)
REGINALD SIDNEY HENRY BOULDING
Original Assignee
REGINALD SIDNEY HENRY BOULDING
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 REGINALD SIDNEY HENRY BOULDING filed Critical REGINALD SIDNEY HENRY BOULDING
Priority to GB595119A priority Critical patent/GB164028A/en
Publication of GB164028A publication Critical patent/GB164028A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

164,028. Boulding, R. S. H. March 10, 1919. Vibrations, indicating, recording, and registering. - Apparatus to be actuated by explosions or shocks comprises a microphone A in circuit with the primary C of a transformer, of which the secondary C' is connected with a sensitive relay D of Weston or other type which is so adjusted by means of a potentiometer E that the contacts F are normally closed. The contacts F are in circuit with a relay H which may be of the Post Office " Pattern B." When the resistance of the microphone A is reduced, such as by the shock of an explosion, the contacts F are opened and the armature J of the relay H is released to close a circuit to start recording or other mechanism. The relay H is adjusted so that the current normally passing through it is sufficient to keep its armature attracted but not to attract it when once it is released. The recording circuit thus remains closed until the relay H is re-set by the switch L.
GB595119A 1919-03-10 1919-03-10 Improvements in or relating to apparatus adapted to be actuated by means of subaqueous explosions Expired GB164028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB595119A GB164028A (en) 1919-03-10 1919-03-10 Improvements in or relating to apparatus adapted to be actuated by means of subaqueous explosions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB595119A GB164028A (en) 1919-03-10 1919-03-10 Improvements in or relating to apparatus adapted to be actuated by means of subaqueous explosions

Publications (1)

Publication Number Publication Date
GB164028A true GB164028A (en) 1921-06-09

Family

ID=9805674

Family Applications (1)

Application Number Title Priority Date Filing Date
GB595119A Expired GB164028A (en) 1919-03-10 1919-03-10 Improvements in or relating to apparatus adapted to be actuated by means of subaqueous explosions

Country Status (1)

Country Link
GB (1) GB164028A (en)

Similar Documents

Publication Publication Date Title
GB164028A (en) Improvements in or relating to apparatus adapted to be actuated by means of subaqueous explosions
GB235187A (en) Improvements in burglar and like alarms
GB481054A (en) Improvements in electric controlling devices and circuits therefor
US661520A (en) Automatic steering device for torpedoes.
GB448549A (en) Improvements in or relating to electromagnetic relays operated at a low potential
GB443791A (en) Electric signalling device for fencing
GB229564A (en)
US2137747A (en) Electrical relay
DE356697C (en) Electric current limiter
GB276529A (en) Automatic regulating transformer
GB208073A (en) Improvements in electromagnetic interrupters and like apparatus
GB151383A (en) An improved method of, and means for, testing the hardness of ferrous metals
SU29550A1 (en) Relay
SU72854A1 (en) Galvanometer relay
GB420590A (en) Improvements in and relating to protective circuit breakers
GB420619A (en) Improvements relating to fuses for electric circuits
GB381946A (en) Improvements in electromagnetic relay arrangements employed in electrical signallingsystems
GB241865A (en) Means for automatically interrupting the current in electric furnaces if a fault occurs in an electrode
GB437611A (en) An apparatus for igniting gas from gas taps
SE100123C1 (en)
GB116791A (en) Improvements connected with Lifting Magnets.
GB144221A (en) Improvements in and relating to magnetic separators
GB203952A (en) Improvements in or relating to electrically operated burglar alarms
GB710738A (en) Improvements in and relating to magnetising apparatus
GB123766A (en) Improvements in Alternating Current Limiting Apparatus.