GB509731A - Improvements in radio direction finding apparatus - Google Patents

Improvements in radio direction finding apparatus

Info

Publication number
GB509731A
GB509731A GB26706/38A GB2670638A GB509731A GB 509731 A GB509731 A GB 509731A GB 26706/38 A GB26706/38 A GB 26706/38A GB 2670638 A GB2670638 A GB 2670638A GB 509731 A GB509731 A GB 509731A
Authority
GB
United Kingdom
Prior art keywords
motor
sept
meter
direction finding
radio direction
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
GB26706/38A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB509731A publication Critical patent/GB509731A/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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D3/00—Lasts
    • A43D3/14—Stretching or spreading lasts; Boot-trees; Fillers; Devices for maintaining the shape of the shoe
    • A43D3/1425—Devices for sole stretching
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B17/00—Water-tube boilers of horizontally-inclined type, e.g. the water-tube sets being inclined slightly with respect to the horizontal plane
    • F22B17/10—Water-tube boilers of horizontally-inclined type, e.g. the water-tube sets being inclined slightly with respect to the horizontal plane built-up from water-tube sets in abutting connection with two sectional headers each for every set, i.e. with headers in a number of sections across the width or height of the boiler

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

509,731. Automatic control systems. STANDARD TELEPHONES & CABLES, Ltd. Sept. 13, 1938, No. 26706. Convention date, Sept. 17, 1937. [Class 38 (iv)] [Also in Group XL] Relates to wireless direction-finding. The Specification as open to inspection under Sect. 91 discloses an arrangement, Fig. 11 (Cancelled), in which a dipole and frame combination 20, 10, is constantly rotated about an horizontal axis 81 by a motor 72, and can be orientated about a vertical axis 82 by a motor 73, the pick-up voltage being fed to a phase meter 76. The rotating coil of the meter is arranged to close one or other of a pair of contacts 80 so as to control the movement of the motor 73 until the latter automatically holds the aerial system fixed in the line of the incoming wave, as indicated by a pointer 84. This subject-matter does not appear in the Specification as accepted.
GB26706/38A 1937-09-17 1938-09-13 Improvements in radio direction finding apparatus Expired GB509731A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR836097T 1937-09-17

Publications (1)

Publication Number Publication Date
GB509731A true GB509731A (en) 1939-07-20

Family

ID=9297922

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26706/38A Expired GB509731A (en) 1937-09-17 1938-09-13 Improvements in radio direction finding apparatus

Country Status (4)

Country Link
CH (1) CH254786A (en)
FR (1) FR836097A (en)
GB (1) GB509731A (en)
NL (1) NL55748C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2758325A (en) * 1951-10-25 1956-08-14 Leager Mfg Company Ski boot carrier and straightener
US2903726A (en) * 1956-06-12 1959-09-15 Ver Baubeschlag Gretsch Co Shoe straightener

Also Published As

Publication number Publication date
NL55748C (en)
FR836097A (en) 1939-01-10
CH254786A (en) 1948-05-31

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