US2786361A - Gimbal mechanisms - Google Patents

Gimbal mechanisms Download PDF

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Publication number
US2786361A
US2786361A US400729A US40072953A US2786361A US 2786361 A US2786361 A US 2786361A US 400729 A US400729 A US 400729A US 40072953 A US40072953 A US 40072953A US 2786361 A US2786361 A US 2786361A
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United States
Prior art keywords
gimbal member
rollers
rope
members
fastened
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Expired - Lifetime
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US400729A
Inventor
Russell James Langley
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English Electric Co Ltd
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English Electric Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G01C19/02—Rotary gyroscopes
    • G01C19/04—Details
    • G01C19/16—Suspensions; Bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/50—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism
    • B23Q1/52—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism a single rotating pair
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/50—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism
    • B23Q1/54—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only
    • B23Q1/5406—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only a single rotating pair followed perpendicularly by a single rotating pair
    • 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
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/06—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member
    • F16H19/0622—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member for converting reciprocating movement into oscillating movement and vice versa, the reciprocating movement is perpendicular to the axis of oscillation
    • 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
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/06—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member
    • F16H19/0604—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member with means to double or half the stroke of the reciprocating member
    • 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
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18832—Reciprocating or oscillating to or from alternating rotary including flexible drive connector [e.g., belt, chain, strand, etc.]
    • Y10T74/18848—Reciprocating or oscillating to or from alternating rotary including flexible drive connector [e.g., belt, chain, strand, etc.] with pulley
    • 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
    • Y10T74/18888—Reciprocating to or from oscillating
    • 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
    • Y10T74/22—Miscellaneous

Definitions

  • This invention relates to a gimbal mechanism; i. e. a mechanism comprising a gimbal member upon which a device is pivotally mounted, a gimbal member itself being mounted on a frame pivotally about an axis perpendicular to a plane containing the pivotal axis of the device in the gimbal member.
  • a mechanism comprises a gimbal member having two coextensive part-circular opposed concentric surfaces, means to support the gimbal member comprising two rollers both bearing upon one of the surfaces and at least one other roller bearing upon that part of the other surface corresponding to the minor arc between said two rollers, and means to move the gimbal member circumferentially between the rollers.
  • said pair of adjacently disposed pulleys is formed by grooves in the two rollers which bear upon the surface of the gimbal member.
  • a semi-circular gimbal ring supports through pivotal bearings 11 and 12, the axis of which lies in the plane of the figure, a reflector dish 13 for a radar aerial.
  • a similar flexible wire 21 is secured to the other end of gimbal member 10 at point 22 and passes between the gimbal member and roller 15, around roller 23 to an anchorage on the frame at point 24.
  • Roller 19 is secured to a piston 25 by a piston rod 26.
  • Piston 25 works in a hydraulic cylinder 27 to force roller 19 away and apply tension to wire 17.
  • Roller 23 is similarly forced by a corresponding piston 28 and hydraulic cylinder 29 to apply tension to wire 21.
  • a mechanism comprising a gimbal member having two co-extensive part-circular opposed concentric surfaces, means to support the gimbal member comprising two rollers both bearing upon one of the surfaces and at least one other roller bearing upon that part of the other surface corresponding to the minor are between said two rollers, and means to move the gimbal member circumferentially between the rollers.
  • said means to move the gimbal member comprises a pair of flexible rope-like members fastened one near each end of an outwardly facing surface of the gimbal member and passing around this surface over each of a pair of adjacently disposed pulleys to a means for applying and controlling tension in the rope-like members.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Aerials With Secondary Devices (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

735,359. Self-levelling arrangements. ENGLISH ELECTRIC CO., Ltd. Jan. 1, 1954 [Jan. 9, 1953], No. 788/53. Class 113 (1). In a mechanism comprising a gimbal member 10 having two co-extensive part-circular opposed concentric surfaces and supported by two rollers 14, 15 both bearing upon one of the surfaces and at least one other roller 16 bearing upon that part of the other surface corresponding to the minor arc between said two rollers, means to move the gimbal member circumferentially between the rollers comprises a pair of rope-like members 17, 21 fastened at 18 and 22 respectively near each end of an outwardly facing surface of the gimbal member and passing around this surface over each of the rollers 14, 15 to a means for applying and controlling tension in the rope-like members. This latter means comprises a pair of fluid pressurecontrolled piston and cylinder units 25, 28 in which the rope-like members 17 and 21 respectively pass over pulleys 19, 23 mounted on a piston attachment 26 and have the ends which are not fastened to the surface of the gimbal member fastened to a fixed point 20, 24 in the mechanism. The gimbal member 10 supports, through pivotal bearings 11, 12, a reflector dish 13 for a radar aerial and is itself mounted on a frame (not shown) pivotally about an axis perpendicular to a plane containing the pivotal axis 11-12.

Description

March 26, 1957 1. RUSSELL 2,786,361
GIMBAL MECHANISMS Filed Dec. 28, 1953 United States Patent GllVlBAL MECHANISMS James Langley Russell, Luton, England, assignor to The English Electric Company Limited, London, England, a British Company Application December 28, 1953, Serial No. 400,729 Claims priority, application Great Britain January 9, 1953 3 Claims. (Cl. 74-95) This invention relates to a gimbal mechanism; i. e. a mechanism comprising a gimbal member upon which a device is pivotally mounted, a gimbal member itself being mounted on a frame pivotally about an axis perpendicular to a plane containing the pivotal axis of the device in the gimbal member.
According to a feature of the present invention, a mechanism comprises a gimbal member having two coextensive part-circular opposed concentric surfaces, means to support the gimbal member comprising two rollers both bearing upon one of the surfaces and at least one other roller bearing upon that part of the other surface corresponding to the minor arc between said two rollers, and means to move the gimbal member circumferentially between the rollers.
According to a further feature of the invention, said means to move the gimbal member comprises a pair of flexible rope-like members fastened one near each end of an outwardly facing surface of the gimbal member and passing around this surface over each of a pair of adjacently disposed pulleys to a means for applying and controlling tension in the rope-like members. Said ropelike members may be lengths of cord, wire-rope, chain or tape, etc.
According to another feature of the invention, the means for applying and controlling tension comprises a pair of fluid pressure-controlled piston and cylinder units in which the rope-like members are each fastened to a piston attachment.
According to a preferred feature of the invention the means for applying and controlling tension comprises a pair of fluid pressure-controlled piston and cylinder units in which the rope-like members each pass over a pulley mounted on a piston attachment and have the ends which are not fastened to the surface of the gimbal member fastened to a fixed point in the mechanism.
According to a still further feature of the invention said pair of adjacently disposed pulleys is formed by grooves in the two rollers which bear upon the surface of the gimbal member.
A gimbal mechanism which embodies the invention in preferred form is diagrammatically illustrated in plan view in the accompanying drawing.
A semi-circular gimbal ring supports, through pivotal bearings 11 and 12, the axis of which lies in the plane of the figure, a reflector dish 13 for a radar aerial.
The gimbal member 10 is in turn supported from a frame (not shown) by passing between two rollers 14 and 15 which are carried by the frame and bear upon the outside surface of gimbal member 10, and a further roller 16 which bears on the inside surface and is also carried by the frame.
A flexible wire 17 is secured to gimbal member 10 at 18 and is wrapped around the outside surface of gimbal member 10 to pass between this member and roller 14. It then passes around a further roller 19 and has its other end secured to the frame at a point 20.
A similar flexible wire 21 is secured to the other end of gimbal member 10 at point 22 and passes between the gimbal member and roller 15, around roller 23 to an anchorage on the frame at point 24.
Roller 19 is secured to a piston 25 by a piston rod 26. Piston 25 works in a hydraulic cylinder 27 to force roller 19 away and apply tension to wire 17. Roller 23 is similarly forced by a corresponding piston 28 and hydraulic cylinder 29 to apply tension to wire 21.
By application of pressure fluid through the port 31 to cylinder 27 at higher pressure than fluid applied through the port 32 to cylinder 29, the tension in wire 17 may be increased above that in wire 21. Piston 25 will then move outwards expelling fluid through the port 33 while piston 28 moves inwards and fluid is admitted through the port 34 and gimbal member 10 will be turned between rollers 14, 15 and 16 in the direction which appears anti-clockwise in the drawing. The ports 33 and 34 may be connected together.
Rotation of reflector 13 about the axis of its bearings 11 and 12 is independently effected by a motor diagrammatically indicated at 30.
It will be seen that the mechanism shown in the drawing can be constructed to occupy a space of small overall width, which in some applications is a great advantage.
What I claim as my invention and desire to secure by Letters Patent is:
1. A mechanism comprising a gimbal member having two co-extensive part-circular opposed concentric surfaces, means to support the gimbal member comprising two rollers both bearing upon one of the surfaces and at least one other roller bearing upon that part of the other surface corresponding to the minor are between said two rollers, and means to move the gimbal member circumferentially between the rollers.
2. A mechanism according to claim 1, wherein said means to move the gimbal member comprises a pair of flexible rope-like members fastened one near each end of an outwardly facing surface of the gimbal member and passing around this surface over each of a pair of adjacently disposed pulleys to a means for applying and controlling tension in the rope-like members.
3. A mechanism according to claim 2, wherein said pair of adjacently disposed pulleys is formed by grooves in the two rollers which bear upon the surface of the gimbal member.
References Cited in the file of this patent UNITED STATES PATENTS
US400729A 1953-01-09 1953-12-28 Gimbal mechanisms Expired - Lifetime US2786361A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB788/53A GB735359A (en) 1953-01-09 1953-01-09 Improvements relating to gimbal mechanisms

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860524A (en) * 1954-02-17 1958-11-18 Owens Illinois Glass Co Adjusting mechanism for timing devices
US3039420A (en) * 1959-10-05 1962-06-19 Curtiss Wright Corp Steering mechanisms
US3427719A (en) * 1967-01-04 1969-02-18 Time & Motion Dentistry Corp O Dental unit
US3743381A (en) * 1971-08-23 1973-07-03 Polaroid Corp Arrangement for effecting rotational motion between polarizing elements
US3877680A (en) * 1973-10-01 1975-04-15 Willard D Childs Cylinder synchronizer for drilling equipment
US4077328A (en) * 1976-06-11 1978-03-07 Glenn Taylor Rotary dump
US4228890A (en) * 1976-07-13 1980-10-21 Coal Industry (Patents) Limited Particulate material loading equipment
US4373856A (en) * 1976-06-11 1983-02-15 Taylor Glenn E Tie butt handler
US4484486A (en) * 1981-12-03 1984-11-27 Westinghouse Electric Corp. Concentric pulley drive assembly
WO1985002720A1 (en) * 1983-12-16 1985-06-20 Hughes Aircraft Company Low profile scanning antenna
US4580461A (en) * 1983-03-31 1986-04-08 Ball Corporation Biax gimbal arrangement
US4598598A (en) * 1983-02-10 1986-07-08 Siegerland-Bremsen Emde Gmbh Servo drive
US4699556A (en) * 1984-05-17 1987-10-13 Proconics International, Inc. Object handling apparatus
EP0469956A1 (en) * 1990-07-20 1992-02-05 Nicotec Co., Ltd. Plane motion mechanism
WO1997034104A1 (en) * 1996-03-14 1997-09-18 Pates Technology Patentverwertungsgesellschaft Für Satelliten- Und Moderne Informationstechnologien Mbh Swivelling device
US6474184B2 (en) * 2000-05-25 2002-11-05 Eads Deutschland Gmbh Tilt and swivel positioning device
US20090058745A1 (en) * 2007-09-05 2009-03-05 Viasat, Inc. Roller Based Antenna Positioner

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2966646B1 (en) 2010-10-26 2013-10-04 Thales Sa PARABOLIC ANTENNA POSITIONER

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US667312A (en) * 1900-02-24 1901-02-05 Olaf Hetlesaeter Swinging mechanism.
GB191220095A (en) * 1912-09-03 1913-09-03 James Monaghan Improvements in Change Speed Gearing, specially Adapted for Screw Propellers and other Mechanical Devices where End Thrust Exists.
US1204527A (en) * 1915-01-08 1916-11-14 Alexander H Wood Railway-tipple.
US1266474A (en) * 1916-12-20 1918-05-14 Ottumwa Box Car Loader Co Car-unloader.
US1579900A (en) * 1919-05-12 1926-04-06 Willys Morrow Company Testing machine for gear cutters
US1938027A (en) * 1931-06-01 1933-12-05 Link Belt Co Car dumper
US2134557A (en) * 1937-03-31 1938-10-25 Joseph M Hilbish Apparatus for cleaning and coating elongated metal objects
US2512636A (en) * 1946-08-28 1950-06-27 Gen Electric Semicircular type support and drive for receiver parabola stabilization

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US667312A (en) * 1900-02-24 1901-02-05 Olaf Hetlesaeter Swinging mechanism.
GB191220095A (en) * 1912-09-03 1913-09-03 James Monaghan Improvements in Change Speed Gearing, specially Adapted for Screw Propellers and other Mechanical Devices where End Thrust Exists.
US1204527A (en) * 1915-01-08 1916-11-14 Alexander H Wood Railway-tipple.
US1266474A (en) * 1916-12-20 1918-05-14 Ottumwa Box Car Loader Co Car-unloader.
US1579900A (en) * 1919-05-12 1926-04-06 Willys Morrow Company Testing machine for gear cutters
US1938027A (en) * 1931-06-01 1933-12-05 Link Belt Co Car dumper
US2134557A (en) * 1937-03-31 1938-10-25 Joseph M Hilbish Apparatus for cleaning and coating elongated metal objects
US2512636A (en) * 1946-08-28 1950-06-27 Gen Electric Semicircular type support and drive for receiver parabola stabilization

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860524A (en) * 1954-02-17 1958-11-18 Owens Illinois Glass Co Adjusting mechanism for timing devices
US3039420A (en) * 1959-10-05 1962-06-19 Curtiss Wright Corp Steering mechanisms
US3427719A (en) * 1967-01-04 1969-02-18 Time & Motion Dentistry Corp O Dental unit
US3743381A (en) * 1971-08-23 1973-07-03 Polaroid Corp Arrangement for effecting rotational motion between polarizing elements
US3877680A (en) * 1973-10-01 1975-04-15 Willard D Childs Cylinder synchronizer for drilling equipment
US4077328A (en) * 1976-06-11 1978-03-07 Glenn Taylor Rotary dump
US4373856A (en) * 1976-06-11 1983-02-15 Taylor Glenn E Tie butt handler
US4228890A (en) * 1976-07-13 1980-10-21 Coal Industry (Patents) Limited Particulate material loading equipment
US4484486A (en) * 1981-12-03 1984-11-27 Westinghouse Electric Corp. Concentric pulley drive assembly
US4598598A (en) * 1983-02-10 1986-07-08 Siegerland-Bremsen Emde Gmbh Servo drive
US4580461A (en) * 1983-03-31 1986-04-08 Ball Corporation Biax gimbal arrangement
WO1985002720A1 (en) * 1983-12-16 1985-06-20 Hughes Aircraft Company Low profile scanning antenna
US4699556A (en) * 1984-05-17 1987-10-13 Proconics International, Inc. Object handling apparatus
EP0469956A1 (en) * 1990-07-20 1992-02-05 Nicotec Co., Ltd. Plane motion mechanism
WO1997034104A1 (en) * 1996-03-14 1997-09-18 Pates Technology Patentverwertungsgesellschaft Für Satelliten- Und Moderne Informationstechnologien Mbh Swivelling device
US6474184B2 (en) * 2000-05-25 2002-11-05 Eads Deutschland Gmbh Tilt and swivel positioning device
US20090058745A1 (en) * 2007-09-05 2009-03-05 Viasat, Inc. Roller Based Antenna Positioner
WO2009033085A1 (en) * 2007-09-05 2009-03-12 Viasat, Inc. Roller based antenna positioner
US8054233B2 (en) 2007-09-05 2011-11-08 Viasat, Inc. Roller based antenna positioner

Also Published As

Publication number Publication date
GB735359A (en) 1955-08-17

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