GB990474A - Gear mechanism for representing planetary motion in a planetarium apparatus - Google Patents

Gear mechanism for representing planetary motion in a planetarium apparatus

Info

Publication number
GB990474A
GB990474A GB191262A GB191262A GB990474A GB 990474 A GB990474 A GB 990474A GB 191262 A GB191262 A GB 191262A GB 191262 A GB191262 A GB 191262A GB 990474 A GB990474 A GB 990474A
Authority
GB
United Kingdom
Prior art keywords
gear
screws
wheel
driving
motion
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
GB191262A
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.)
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
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 Carl Zeiss AG filed Critical Carl Zeiss AG
Publication of GB990474A publication Critical patent/GB990474A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16H35/00—Gearings or mechanisms with other special functional features
    • F16H35/02—Gearings or mechanisms with other special functional features for conveying rotary motion with cyclically varying velocity ratio
    • 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
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B27/00—Planetaria; Globes
    • G09B27/02—Tellurions; Orreries
    • 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
    • F16H35/00—Gearings or mechanisms with other special functional features
    • F16H2035/003—Gearings comprising pulleys or toothed members of non-circular shape, e.g. elliptical gears

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Retarders (AREA)
  • Gear Transmission (AREA)

Abstract

990,474. Toothed gearing. CARL ZEISS-STIFTUNG, [trading as C. ZEISS (firm of)]. Jan.8, 1962 [Jan. 7, 1961], No. 1912/62. Heading F2Q. A gear mechanism for representing a planetary motion in a planetarium comprises a non-circular driving gear 1 meshing a circular driven gear 2, the axes of rotation 3, 4 of the gears being eccentrically displaced by the same amount e. Equations for determining the pitch curve of the driving wheel are given. Also specific values of the major axis 2A and minor axis 2B to represent the paths of the planets Mercury and Mars are given. The driving wheel 1 may be produced by deforming a ring gear 9 having a diameter equal to that of the driven wheel. The gear 9 is supported from an eccentricallymounted plate 5 by diametrically opposed adjusting screws 7, 7<SP>1</SP> and 11, 11<SP>1</SP>, the screws 7, 7<SP>1</SP> being adjusted to spread the ring gear 9 to form a major axis 2A, and the screws 11, 11<SP>1</SP> being adjusted to contract the ring to form a minor axis 2B. In a modification, a driving gear is made by a rolling process employing an eccentrically journalled cutting pinion wherein the rotary motion of the cutting pinion and of the driving gear wheel to beproduced are non-uniformly controlled with respect to each other by a gearwheel complying exactly with the formula in accordance with the laws of motion of the planet to be represented.
GB191262A 1961-01-07 1962-01-08 Gear mechanism for representing planetary motion in a planetarium apparatus Expired GB990474A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ8469A DE1133164B (en) 1961-01-07 1961-01-07 Waelz gear for displaying the planetary motion in a planetarium device

Publications (1)

Publication Number Publication Date
GB990474A true GB990474A (en) 1965-04-28

Family

ID=7620509

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191262A Expired GB990474A (en) 1961-01-07 1962-01-08 Gear mechanism for representing planetary motion in a planetarium apparatus

Country Status (2)

Country Link
DE (1) DE1133164B (en)
GB (1) GB990474A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0953488A3 (en) * 1998-04-30 2001-11-28 Trico Products Company Windshield wiper system and drive mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0953488A3 (en) * 1998-04-30 2001-11-28 Trico Products Company Windshield wiper system and drive mechanism

Also Published As

Publication number Publication date
DE1133164B (en) 1962-07-12

Similar Documents

Publication Publication Date Title
GB1512795A (en) Controlling pivot mechanisms
GB1489475A (en) Speed convertors
GB1470645A (en) Shaft co&#39;plings
GB895809A (en) Actuating mechanism for electrical switches
GB1479314A (en) Rack and pinion steering mechanism
GB1386114A (en) Modular potentiometers
GB990474A (en) Gear mechanism for representing planetary motion in a planetarium apparatus
GB1071716A (en) Speed varying mechanism
GB898037A (en) Improvements in intermittent reversing drives
JPS5354658A (en) Electroc motor-operation machine
GB1031800A (en) Gearing for representing planetary and satellite movements
EP0248289A3 (en) Toothed gearing with a continuously variable transmission ratio
GB1468691A (en) Drive transmission mechanism
GB1180431A (en) Gearing Arrangements
GB1073535A (en) Epicyclic gearing
GB995305A (en) Automatic infinitely variable mechanical power transmission mechanism
CH349471A (en) Spindle control mechanism of a machine tool
GB608513A (en) Depth sounding apparatus
JPS5241766A (en) Planetary gear type transmission
FR2142625A1 (en) Rotary powder mixing appts - eg for blending mixed oxide uranium-plutonium powders
GB905174A (en) Improvements in or relating to variable gearing
GB929772A (en) Reduction gear box
GB1232921A (en)
GB947486A (en) Drive for machine tools
GB1314062A (en) Screw and nut mechanisms