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GB1267117A - - Google Patents

Info

Publication number
GB1267117A
GB1267117A GB1207970A GB1267117DA GB1267117A GB 1267117 A GB1267117 A GB 1267117A GB 1207970 A GB1207970 A GB 1207970A GB 1267117D A GB1267117D A GB 1267117DA GB 1267117 A GB1267117 A GB 1267117A
Authority
GB
United Kingdom
Prior art keywords
gear
axis
differential
cage member
hour angle
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
GB1207970A
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 filed Critical
Publication of GB1267117A publication Critical patent/GB1267117A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01Q3/02—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 movement of antenna or antenna system as a whole
    • H01Q3/08—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 movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19623—Backlash take-up
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19628—Pressure distributing

Landscapes

  • Toys (AREA)
  • Gear Transmission (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

1,267,117. Aerials. MARCONI CO. Ltd. 27 Nov., 1970 [13 March, 1970], No. 12079/70. Heading H4A. A steerable aerial is carried by a gear 15 which is rotatable by two driving gears 14, each connected to a respective shaft 22 through a gearbox 13 and bevel gearing 12. A motor 10 drives via a belt 18 the cage member 19 of a differential 11, each "sun " or output wheel of which is fixed to one of the shafts 22. A substantially constant torque spring 23 is connected between one of the planet wheels 21 and the cage member 19 of the differential 11, and serves to take up any backlash. As described, a reflector type aerial is mounted on the gear 15, the axis of said gear corresponding with the hour angle axis (Fig. 1, not shown). The gear boxes 13 have a large reduction ratio, for example, 3000 to 1. Tilting about an elevation axis perpendicular to the hour angle axis is effected by means of a screw-and-nut arrangement.
GB1207970A 1970-03-13 1970-03-13 Expired GB1267117A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1207970 1970-03-13

Publications (1)

Publication Number Publication Date
GB1267117A true GB1267117A (en) 1972-03-15

Family

ID=9998054

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1207970A Expired GB1267117A (en) 1970-03-13 1970-03-13

Country Status (3)

Country Link
US (1) US3665482A (en)
JP (1) JPS5525525B1 (en)
GB (1) GB1267117A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0112205A1 (en) * 1982-11-23 1984-06-27 Thomson-Brandt Support for an antenna for satellite broadcast reception, and combination of the support and its antenna
FR2671885A1 (en) * 1991-01-17 1992-07-24 Robert Pierre DEVICE FOR ORIENTATION AND ADJUSTMENT, ACCORDING TO AT LEAST ONE OF THE THREE DIRECTIONS OF SPACE, OF THE POSITION OF A PART, ESPECIALLY OF AN ANTENNA FOR TRANSMISSION OR RECEPTION OF ELECTROMAGNETIC WAVES.
GB2263167A (en) * 1992-01-06 1993-07-14 Samsung Electronics Co Ltd Sensor apparatus

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL157541B (en) * 1973-03-19 1978-08-15 Wavin Bv PLASTIC EXTRUDER WITH AT LEAST TWO TRANSPORT MIXING SCREWS.
US4251819A (en) * 1978-07-24 1981-02-17 Ford Aerospace & Communications Corp. Variable support apparatus
US4305307A (en) * 1979-12-18 1981-12-15 The United States Of America As Represented By The Secretary Of The Air Force Anti-backlash gear drive
US4626864A (en) * 1984-03-12 1986-12-02 Polarmax Corporation Motorized antenna mount for satellite dish
US4691207A (en) * 1984-09-04 1987-09-01 Nissho Iwai American Corporation Antenna positioning apparatus
FR2588049B1 (en) * 1985-10-02 1989-06-02 Snecma DEVICE FOR ANGULAR ORIENTATION AND POSITIONING OF THE ROTATION AXIS OF A ROTATING LOAD
JP2567082B2 (en) * 1989-03-02 1996-12-25 ファナック株式会社 Joint structure of industrial robot
US5882158A (en) * 1996-05-31 1999-03-16 Deckel Maho Gmbh Drive assembly
JPH10308621A (en) * 1997-05-02 1998-11-17 Nec Corp Antenna driving device
US8512199B2 (en) 2010-07-26 2013-08-20 Rethink Robotics, Inc. Minimizing backlash utilizing series elastic elements
US8686680B2 (en) 2011-06-13 2014-04-01 Rethink Robotics, Inc. Dual-motor series elastic actuator
US9409298B2 (en) 2012-04-13 2016-08-09 Rethink Robotics, Inc. Flexure elements for series elastic actuators and related methods
US9610636B2 (en) * 2013-01-09 2017-04-04 Illinois Tool Works Inc. Pipe machining apparatuses and methods of operating the same
US9399306B2 (en) 2013-01-09 2016-07-26 Illinois Tool Works Inc. Pipe machining apparatuses and methods of operating the same
US10328493B2 (en) 2013-01-09 2019-06-25 Illinois Tool Works Inc. Pipe machining apparatuses and methods of operating the same
US9278417B2 (en) 2013-01-09 2016-03-08 Illinois Tool Works Inc. Pipe machining apparatuses and methods of operating the same
WO2014134688A1 (en) * 2013-03-08 2014-09-12 Commonwealth Scientific And Industrial Research Organisation Anti backlash gearbox and system
DE102013009224A1 (en) * 2013-05-31 2014-12-04 Kathrein-Werke Kg Modular adjusting device, in particular for HF devices
US9732990B2 (en) 2013-09-23 2017-08-15 Esolar Inc. Biased drive assemblies for heliostats

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396594A (en) * 1966-02-25 1968-08-13 Designartronics Inc Anti-backlash means for gear trains

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0112205A1 (en) * 1982-11-23 1984-06-27 Thomson-Brandt Support for an antenna for satellite broadcast reception, and combination of the support and its antenna
FR2671885A1 (en) * 1991-01-17 1992-07-24 Robert Pierre DEVICE FOR ORIENTATION AND ADJUSTMENT, ACCORDING TO AT LEAST ONE OF THE THREE DIRECTIONS OF SPACE, OF THE POSITION OF A PART, ESPECIALLY OF AN ANTENNA FOR TRANSMISSION OR RECEPTION OF ELECTROMAGNETIC WAVES.
WO1992013304A1 (en) * 1991-01-17 1992-08-06 Pierre Robert Device for orientation and adjustment according to at least one of the three space directions of the position of a part, particularly an electromagnetic wave reception or emission antenna
GB2263167A (en) * 1992-01-06 1993-07-14 Samsung Electronics Co Ltd Sensor apparatus
GB2263167B (en) * 1992-01-06 1995-06-07 Samsung Electronics Co Ltd Sensor apparatus

Also Published As

Publication number Publication date
JPS5525525B1 (en) 1980-07-07
US3665482A (en) 1972-05-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee