US2734710A - Supporting mechanisms - Google Patents

Supporting mechanisms Download PDF

Info

Publication number
US2734710A
US2734710A US2734710DA US2734710A US 2734710 A US2734710 A US 2734710A US 2734710D A US2734710D A US 2734710DA US 2734710 A US2734710 A US 2734710A
Authority
US
United States
Prior art keywords
bracket
carriage
axis
crank
axes
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 - Lifetime
Application number
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.)
Publication date
Application granted granted Critical
Publication of US2734710A publication Critical patent/US2734710A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • F16H21/04—Guiding mechanisms, e.g. for straight-line guidance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/26—Pivoted arms
    • 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
    • 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
    • Y10T74/18—Mechanical movements
    • Y10T74/18856—Oscillating to oscillating

Definitions

  • This invention relates to a universal pivot support mechanism, i. e. a mechanism which supports a device and permits it to pivot independently about two mutually perpendicular axes.
  • a universal pivot support mechanism i. e. a mechanism which supports a device and permits it to pivot independently about two mutually perpendicular axes.
  • Such mechanisms find application in the support of various devices which need to be aimed, but the invention is particularly applicable to the support of a reflector for a radar aerial.
  • the universal pivot support mechanism comprises a bracket having two pivotal axes, one parallel to a perpendicular through the other, the device to be supported being mounted on the bracket pivotally about one of these axes, the bracket being mounted in a carriage pivotally about the other of these axes.
  • Means are provided to control the orientation of the bracket relative to the carriage as the carriage moves relative to the base from which it is mounted.
  • the single figure of the accompanying drawing shows a diagrammatic plan view of a mechanism for supporting and turning a reflector dish for a radar aerial. This arrangement embodies the invention in preferred form.
  • the reflector dish is fixed to a base 11 which is pivotally mounted about axis 12 in a fork of a bracket 13.
  • Bracket 13 is mounted so as to pivot about the axis of pin 15, which is journalled in carriage 14.
  • the axis 12 is parallel to the plane of the figure, and the axis of pin 15 is perpendicular to this plane.
  • the pivoting of bracket 13 and the pivoting of base 11 about axis 12 therefore together provide, in effect, universal pivoting of reflector dish 10 relative to carriage 14.
  • Carriage 14 is supported from a base 16 by a pair of identical cranks 17, 18, having crank pins 19 and 20 in hearings in carriage 14 and having main bearings 21 and 22 in base 16.
  • the spacing of bearings 21 and 22 is equal to that of crank pins 19 and 20 so that cranks 17 and 18 remain parallel when rotated.
  • a coupling rod 23 pivotally connected to side arms 17a and 18a of cranks 17 and 18 assists in the maintenance of this parallelism of the cranks 17 and 18 when they are nearly in alignment.
  • a chain indicated by dotted line 24 is carried by sprockets of equal diameter mounted on crank pin 20 and pivot pin 15, secured respectively to crank 18 and bracket 13, and this chain thus maintains the axis 25 of bracket 13 parallel to cranks 17 and 18.
  • the distance between the axis of pivot pin 15 and the axis 12 is equal to the throw radius of each of the cranks 17 and 18, and the point of intersection of axes 25 and 12 therefore remains stationary relative to base 16 as the cranks are turned.
  • Flexible wiring (not shown) to feed the motor 27 may, of course, be carried along one of the cranks 17, 18, along the carriage 14, and along an arm of bracket 13.
  • the arrangement provides supporting means for reflector dish 10 which is capable of turning it to any attitude over a range extending about axis 12 in the plane of the figure and similarly about an axis perpendicular to the plane of the figure; and throughout these ranges the supporting mechanism does not obstruct the view of the reflector.
  • a universal pivot support mechanism comprising a bracket having two pivotal axes, one parallel to a perpendicular through the other, the device to be supported being mounted on the bracket pivotally about one of these axes and the bracket being mounted on a carriage pivotally about the other of these axes; the carriage being pivotally mounted on a crank and the crank being pivotally mounted on a base, both about pivotal axes parallel to the bracket-carriage pivotal axis; a pair of sprockets of equal diameter coupled by a chain, one on the bracketcarriage pivotal axis and secured to the bracket and the other on the carriage-crank pivotal axis and secured to the crank, so that the orientations of the bracket and of the crank relative to the carriage are always equal, and means to ensure that the carriage moves always parallel to a fixed axis in the base.
  • a universal pivot support mechanism comprising a bracket having two pivotal axes, one parallel to a perpendicular through the other, the device to be supported being mounted on the bracket pivotally about one of these axes and the bracket being mounted on a carriage pivotally about the other of these axes; the carriage being pivotally mounted on a crank and the crank being pivotally mounted on a base, both about pivotal axes parallel to the bracket-carriage pivotal axis; a pair of sprockets coupled by a chain, one on the bracket-carriage pivotal axis and secured to the bracket and the other on the carriage-crank pivotal axis and secured to the crank.

Description

Feb. 14, 1956 Y NOBLE 2,734,710 I SUPPORTING MECHANISMS Filed Aug. 21 1951 W MM By M
Attorney:
United States Patent SUPPORTING MECHANISMS John Maskill Noble, Dunstable, England, assignor to The English Electric Company Limited, London, England, a British company Application August 21, 1951, Serial No. 242,947
Claims priority, application Great Britain August 28, 1950 3 Claims. (Cl. 248276) This invention relates to a universal pivot support mechanism, i. e. a mechanism which supports a device and permits it to pivot independently about two mutually perpendicular axes. Such mechanisms find application in the support of various devices which need to be aimed, but the invention is particularly applicable to the support of a reflector for a radar aerial.
The universal pivot support mechanism according to the present invention comprises a bracket having two pivotal axes, one parallel to a perpendicular through the other, the device to be supported being mounted on the bracket pivotally about one of these axes, the bracket being mounted in a carriage pivotally about the other of these axes. Means are provided to control the orientation of the bracket relative to the carriage as the carriage moves relative to the base from which it is mounted.
The single figure of the accompanying drawing shows a diagrammatic plan view of a mechanism for supporting and turning a reflector dish for a radar aerial. This arrangement embodies the invention in preferred form.
The reflector dish is fixed to a base 11 which is pivotally mounted about axis 12 in a fork of a bracket 13.
Bracket 13 is mounted so as to pivot about the axis of pin 15, which is journalled in carriage 14. The axis 12 is parallel to the plane of the figure, and the axis of pin 15 is perpendicular to this plane. The pivoting of bracket 13 and the pivoting of base 11 about axis 12 therefore together provide, in effect, universal pivoting of reflector dish 10 relative to carriage 14.
Carriage 14 is supported from a base 16 by a pair of identical cranks 17, 18, having crank pins 19 and 20 in hearings in carriage 14 and having main bearings 21 and 22 in base 16. The spacing of bearings 21 and 22 is equal to that of crank pins 19 and 20 so that cranks 17 and 18 remain parallel when rotated. A coupling rod 23 pivotally connected to side arms 17a and 18a of cranks 17 and 18 assists in the maintenance of this parallelism of the cranks 17 and 18 when they are nearly in alignment.
A chain indicated by dotted line 24 is carried by sprockets of equal diameter mounted on crank pin 20 and pivot pin 15, secured respectively to crank 18 and bracket 13, and this chain thus maintains the axis 25 of bracket 13 parallel to cranks 17 and 18.
The distance between the axis of pivot pin 15 and the axis 12 is equal to the throw radius of each of the cranks 17 and 18, and the point of intersection of axes 25 and 12 therefore remains stationary relative to base 16 as the cranks are turned.
Patented Feb. 14, 1956 A motor indicated diagrammatically at 26, which may for example be a geared electric motor, is arranged to rotate crank 17 relatively to base 16. Similarly a motor indicated diagrammatically at 27, mounted upon the bracket 13, is arranged to rotate base 11 with reflector dish 10 about axis 12 relative to bracket 13. Flexible wiring (not shown) to feed the motor 27 may, of course, be carried along one of the cranks 17, 18, along the carriage 14, and along an arm of bracket 13.
It will be evident that the arrangement provides supporting means for reflector dish 10 which is capable of turning it to any attitude over a range extending about axis 12 in the plane of the figure and similarly about an axis perpendicular to the plane of the figure; and throughout these ranges the supporting mechanism does not obstruct the view of the reflector.
What I claim as my invention and desire to secure by Letter Patent is:
1. A universal pivot support mechanism comprising a bracket having two pivotal axes, one parallel to a perpendicular through the other, the device to be supported being mounted on the bracket pivotally about one of these axes and the bracket being mounted on a carriage pivotally about the other of these axes; the carriage being pivotally mounted on a crank and the crank being pivotally mounted on a base, both about pivotal axes parallel to the bracket-carriage pivotal axis; a pair of sprockets of equal diameter coupled by a chain, one on the bracketcarriage pivotal axis and secured to the bracket and the other on the carriage-crank pivotal axis and secured to the crank, so that the orientations of the bracket and of the crank relative to the carriage are always equal, and means to ensure that the carriage moves always parallel to a fixed axis in the base.
2. Mechanism according to claim 1 wherein the distance between the two pivotal axes of the bracket is equal to the throw radius of the crank.
3. A universal pivot support mechanism comprising a bracket having two pivotal axes, one parallel to a perpendicular through the other, the device to be supported being mounted on the bracket pivotally about one of these axes and the bracket being mounted on a carriage pivotally about the other of these axes; the carriage being pivotally mounted on a crank and the crank being pivotally mounted on a base, both about pivotal axes parallel to the bracket-carriage pivotal axis; a pair of sprockets coupled by a chain, one on the bracket-carriage pivotal axis and secured to the bracket and the other on the carriage-crank pivotal axis and secured to the crank.
References Cited in the file of this patent UNITED STATES PATENTS 1,255,185 Lehmkuhl Feb. 5, 1918 1,711,768 Bausch et a1. May 7, 1929 1,932,469 Leib et al Oct. 31, 1933 1,982,954 Grobe Dec. 4, 1934 2,391,795 Oliver Dec. 25, 1945 2,411,472 Slobod Nov. 19, 1946 FOREIGN PATENTS 629,364 Great Britain Sept. 19, 1949
US2734710D 1950-08-28 Supporting mechanisms Expired - Lifetime US2734710A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21221/50A GB706913A (en) 1950-08-28 1950-08-28 Improvements relating to universal pivot support mechanisms

Publications (1)

Publication Number Publication Date
US2734710A true US2734710A (en) 1956-02-14

Family

ID=10159232

Family Applications (1)

Application Number Title Priority Date Filing Date
US2734710D Expired - Lifetime US2734710A (en) 1950-08-28 Supporting mechanisms

Country Status (3)

Country Link
US (1) US2734710A (en)
FR (1) FR1040516A (en)
GB (1) GB706913A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917955A (en) * 1956-11-19 1959-12-22 Sterling Multi Products Inc Testing device for self-winding mechanisms
US3486388A (en) * 1968-06-27 1969-12-30 S S & S Co Signal-controlled positioning apparatus
US3860930A (en) * 1973-08-23 1975-01-14 Texas Instruments Inc Radar antenna scan apparatus
US3945597A (en) * 1973-03-07 1976-03-23 J. D. Moller Optische Werke Gmbh Microsurgical operating unit
EP0076978A1 (en) * 1981-10-08 1983-04-20 DORNIER SYSTEM GmbH Adjustable support device for a reflector mounted on a satellite
US4567782A (en) * 1981-04-06 1986-02-04 General Dynamics Pomona Division Compound parallelogram four-bar linkage
US4600171A (en) * 1984-10-12 1986-07-15 Lockheed Corporation Aircraft stores vertical extension and retraction system
US4736641A (en) * 1987-01-07 1988-04-12 John Edward Jennings Self-supporting, trackless, rectilinear load transporter
US5200079A (en) * 1990-06-20 1993-04-06 Mcnish Corporation Circular clarifier including improved skimmer clarifier
US20090090832A1 (en) * 1997-03-12 2009-04-09 Humanscale Corporation Keyboard Support Mechanism
US20120178356A1 (en) * 2011-01-12 2012-07-12 John Waldner Attic inlet
US20130273827A1 (en) * 2011-01-12 2013-10-17 John Waldner Attic inlet

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2638258B1 (en) * 1988-10-21 1991-10-31 Thomson Csf ARTICULATED ARM MECHANISM AND SONAR ANTENNA EQUIPPED WITH SUCH A MECHANISM
GB2226456A (en) * 1988-12-22 1990-06-27 Amstrad Plc Aerial mounting
GB2267177A (en) * 1992-05-21 1993-11-24 George Charalambous Mounting apparatus for satellite antenna
GB2368619A (en) * 2000-10-13 2002-05-08 Bae Sys Electronics Ltd Improvements in or relating to coupling arrangements

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1255185A (en) * 1916-07-13 1918-02-05 William B Lehmkuhl Adjustable supporting apparatus.
US1711768A (en) * 1925-12-03 1929-05-07 Bausch & Lomb Lens-focusing mechanism
US1932469A (en) * 1929-12-02 1933-10-31 Telefunken Gmbh Short wave signaling
US1982954A (en) * 1930-08-30 1934-12-04 Gen Electric X Ray Corp Fluoroscopic screen holder
US2391795A (en) * 1942-04-10 1945-12-25 Oliver Pell Control Ltd Adjustable bracket
US2411472A (en) * 1944-05-05 1946-11-19 Gen Electric Antenna system
GB629364A (en) * 1947-06-03 1949-09-19 Basil Dixon Bate Improvements in self sustaining mechanism for electric table lamps, stands and the like

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1255185A (en) * 1916-07-13 1918-02-05 William B Lehmkuhl Adjustable supporting apparatus.
US1711768A (en) * 1925-12-03 1929-05-07 Bausch & Lomb Lens-focusing mechanism
US1932469A (en) * 1929-12-02 1933-10-31 Telefunken Gmbh Short wave signaling
US1982954A (en) * 1930-08-30 1934-12-04 Gen Electric X Ray Corp Fluoroscopic screen holder
US2391795A (en) * 1942-04-10 1945-12-25 Oliver Pell Control Ltd Adjustable bracket
US2411472A (en) * 1944-05-05 1946-11-19 Gen Electric Antenna system
GB629364A (en) * 1947-06-03 1949-09-19 Basil Dixon Bate Improvements in self sustaining mechanism for electric table lamps, stands and the like

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917955A (en) * 1956-11-19 1959-12-22 Sterling Multi Products Inc Testing device for self-winding mechanisms
US3486388A (en) * 1968-06-27 1969-12-30 S S & S Co Signal-controlled positioning apparatus
US3945597A (en) * 1973-03-07 1976-03-23 J. D. Moller Optische Werke Gmbh Microsurgical operating unit
US3860930A (en) * 1973-08-23 1975-01-14 Texas Instruments Inc Radar antenna scan apparatus
US4567782A (en) * 1981-04-06 1986-02-04 General Dynamics Pomona Division Compound parallelogram four-bar linkage
EP0076978A1 (en) * 1981-10-08 1983-04-20 DORNIER SYSTEM GmbH Adjustable support device for a reflector mounted on a satellite
US4600171A (en) * 1984-10-12 1986-07-15 Lockheed Corporation Aircraft stores vertical extension and retraction system
US4736641A (en) * 1987-01-07 1988-04-12 John Edward Jennings Self-supporting, trackless, rectilinear load transporter
US5200079A (en) * 1990-06-20 1993-04-06 Mcnish Corporation Circular clarifier including improved skimmer clarifier
US20090090832A1 (en) * 1997-03-12 2009-04-09 Humanscale Corporation Keyboard Support Mechanism
US20100200712A1 (en) * 1997-03-12 2010-08-12 Humanscale Corporation Keyboard Support Mechanism
US7841570B2 (en) 1997-03-12 2010-11-30 Humanscale Corporation Keyboard support mechanism
US7841569B2 (en) 1997-03-12 2010-11-30 Humanscale Corporation Keyboard support mechanism
US20120178356A1 (en) * 2011-01-12 2012-07-12 John Waldner Attic inlet
US20130273827A1 (en) * 2011-01-12 2013-10-17 John Waldner Attic inlet
US9445574B2 (en) * 2011-01-12 2016-09-20 John Waldner Attic inlet

Also Published As

Publication number Publication date
FR1040516A (en) 1953-10-15
GB706913A (en) 1954-04-07

Similar Documents

Publication Publication Date Title
US2734710A (en) Supporting mechanisms
US8800935B2 (en) Spacecraft payload positioning with respect to a virtual pivot point
GB1084065A (en)
US3984837A (en) Rotatable and tiltable radome with independent scan and tilt antenna
US3530477A (en) Scanning antenna having drive motors fixed with respect to the antenna
US2554119A (en) Stabilized radar scanner equipment mounted on vehicles of all kinds
US2882004A (en) Means for mounting objects that are
CN106314787B (en) Aircraft
US2535049A (en) Antenna structure
US2551180A (en) Radio echo system
US2411472A (en) Antenna system
US1999897A (en) Stabilizing device
US3262321A (en) Two-rod seeker head
US2654334A (en) Torpedo with rolling hull
US2899677A (en) rockall
US3021524A (en) Scanning horn-reflector antenna
US2520736A (en) Gun turret
FR2328634A1 (en) Load tray rotor with offset pivot axis - maintains horizontal trays regardless of loading or angular position
US3166750A (en) Antenna intersecting-orthogonal-axes gimbal mount utilizing rotary bearings for two axes and push-pull linkage for third axis
US2893002A (en) Universally movable radar antenna apparatus
IL272961B (en) Antenna for receiving data from low earth orbit satellites
US1492682A (en) Dirigible spotlight
US2095588A (en) Radio direction finder
US3276024A (en) Antenna wind torque reducer
US1907996A (en) Sound locating apparatus