[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

GB827083A - Improvements in or relating to aerial systems - Google Patents

Improvements in or relating to aerial systems

Info

Publication number
GB827083A
GB827083A GB427/57A GB42757A GB827083A GB 827083 A GB827083 A GB 827083A GB 427/57 A GB427/57 A GB 427/57A GB 42757 A GB42757 A GB 42757A GB 827083 A GB827083 A GB 827083A
Authority
GB
United Kingdom
Prior art keywords
bolt
cone
nuts
halves
sleeve
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
GB427/57A
Inventor
Mieczyslaw Wielobob
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi 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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to ES0238259A priority Critical patent/ES238259A1/en
Publication of GB827083A publication Critical patent/GB827083A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
    • 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
    • G01S1/02—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 radio waves
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
    • H01Q3/14—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying the relative position of primary active element and a refracting or diffracting device

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Dowels (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

827,083. Bolting; nuts, washers and nails. WILLIAMS, C. I. Feb. 13, 1956 [Feb. 17, 1955], No. 4409/56. Class 89(1) and 89(2) [Also in Group X] An anchor-bolt comprises a bolt-member 17, Fig. 1, supporting a cone 19 in engagement with a sleeve 22 consisting of two shell-halves which are moved outwardly to grip the bore wall. Bolt-member 17 may be in screwed engagement with the cone or, as shown, consist of a rod passing freely through the cone and having nuts 18, 30 at each end. The sleeve is supported by a tube 28, as nut 30 is tightened, to advance the cone into the sleeve and move the shell-halves outwardly. The halves may be held together to form the sleeve by a rubber-band in a groove therearound, or they may be integrally joined by thin wall parts, which break to separate the halves as the cone advances. The nut-and-tube may be removed after fixing the bolt, to permit the use of the bolt to secure, e.g. concrete shuttering, tunnel supports &c. Two cones 19, Fig. 6, and sleeves 21', 22" may be used on the same bolt member 42, the sleeves being either similarly or oppositely serrated. The cones may be spaced apart by a tube 44, and the bolt is used to secure a tunnel lining 47 fixed to support members 48 by double headed nails 53 which also hold a washerlike bracket 50 to the lining. The bolt member passes through the bracket and receives a nut 51. Anchor bolts are used to secure concrete shuttering 54<SP>1</SP>, Fig. 14, wherein screwed members 57 having an internal thread at one end for the bolt member are engaged by nuts 57<SP>1</SP> abutting brackets 50' which form angled seatings for the nuts. Where necessary the bolt members may have extensions 70.
GB427/57A 1957-01-04 1957-01-04 Improvements in or relating to aerial systems Expired GB827083A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES0238259A ES238259A1 (en) 1957-01-04 1957-10-25 Improvements in rotary management antennas (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB345926X 1957-01-04
GB160957X 1957-09-16

Publications (1)

Publication Number Publication Date
GB827083A true GB827083A (en) 1960-02-03

Family

ID=26251799

Family Applications (1)

Application Number Title Priority Date Filing Date
GB427/57A Expired GB827083A (en) 1957-01-04 1957-01-04 Improvements in or relating to aerial systems

Country Status (4)

Country Link
CH (1) CH345926A (en)
DE (1) DE1044184B (en)
FR (1) FR1189018A (en)
GB (1) GB827083A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795914A (en) * 1972-09-20 1974-03-05 E Systems Inc Rotating beacon antenna with polarization filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795914A (en) * 1972-09-20 1974-03-05 E Systems Inc Rotating beacon antenna with polarization filter

Also Published As

Publication number Publication date
DE1044184B (en) 1958-11-20
CH345926A (en) 1960-04-30
FR1189018A (en) 1959-09-28

Similar Documents

Publication Publication Date Title
GB827088A (en) Improvements in or relating to rock anchor
GB827083A (en) Improvements in or relating to aerial systems
GB1517431A (en) Expandable fastener
GB1241216A (en) Sleeve anchor
NO802381L (en) BOLT
US3303736A (en) Mine roof bolts and the like
GB831740A (en) Improvements in anchor bolts for the lining of shafts
GB1471763A (en) Bolt anchoring device
ES2082386T3 (en) BOARDS OF BODIES OF DIVIDED SECTION.
GB991624A (en) Improvements in or relating to a structural assembly
GB915483A (en) Flyovers for road traffic
GB1152468A (en) Improvements in or relating to Adjustable Struts Applicable To Building Construction Particularly For Supporting Floor Shuttering
GB897382A (en) Improvements in or relating to washers and methods of bolting using such washers
GB875238A (en) Improvements relating to bolt anchoring devices
NO991582L (en) Universal Coupler
GB881187A (en) Improvements in or relating to securing clips for scaffolding
GB1008031A (en) Improvements in or relating to furniture and other frame construction joints
GB855048A (en) Joists
ES339751A1 (en) Adjustable shelf structures
JPH04108923A (en) Construction method for concrete retaining wall
GB561884A (en) Improvements in screw and nut fastenings
FR2330902A1 (en) Anchor bolt for use in concrete - has nut with inclined slots expanded by bearing on tapered shank portion
GB788854A (en) Improved bolt means for securing articles against wall and other surfaces
GB851533A (en) Improvements in or relating to adjustable struts
GB907377A (en) Improvements relating to shuttering for use in forming a column, beam or like structure