GB319084A - Improvements in sound transmitter - Google Patents

Improvements in sound transmitter

Info

Publication number
GB319084A
GB319084A GB1880428A GB1880428A GB319084A GB 319084 A GB319084 A GB 319084A GB 1880428 A GB1880428 A GB 1880428A GB 1880428 A GB1880428 A GB 1880428A GB 319084 A GB319084 A GB 319084A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
chamber
tube
water
armatures
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
GB1880428A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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
Priority to NL29670D priority Critical patent/NL29670C/xx
Application filed by Individual filed Critical Individual
Priority to GB1880428A priority patent/GB319084A/en
Priority to DEW79754D priority patent/DE485478C/de
Priority to FR656979D priority patent/FR656979A/fr
Publication of GB319084A publication Critical patent/GB319084A/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)
  • Special Spraying Apparatus (AREA)
  • Reciprocating Pumps (AREA)
GB1880428A 1928-06-28 1928-06-28 Improvements in sound transmitter Expired GB319084A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL29670D NL29670C (forum.php) 1928-06-28
GB1880428A GB319084A (en) 1928-06-28 1928-06-28 Improvements in sound transmitter
DEW79754D DE485478C (de) 1928-06-28 1928-06-30 Unterwasserschallsender mit geschlossenem Gehaeuse
FR656979D FR656979A (fr) 1928-06-28 1928-07-04 émetteur acoustique applicable notamment à la signalisation sousmarine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1880428A GB319084A (en) 1928-06-28 1928-06-28 Improvements in sound transmitter

Publications (1)

Publication Number Publication Date
GB319084A true GB319084A (en) 1929-09-19

Family

ID=10118701

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1880428A Expired GB319084A (en) 1928-06-28 1928-06-28 Improvements in sound transmitter

Country Status (4)

Country Link
DE (1) DE485478C (forum.php)
FR (1) FR656979A (forum.php)
GB (1) GB319084A (forum.php)
NL (1) NL29670C (forum.php)

Also Published As

Publication number Publication date
DE485478C (de) 1929-11-15
FR656979A (fr) 1929-05-17
NL29670C (forum.php)

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