FR550801A - Adjustable speed reducer device for electric motor operating automatic pianos - Google Patents

Adjustable speed reducer device for electric motor operating automatic pianos

Info

Publication number
FR550801A
FR550801A FR550801DA FR550801A FR 550801 A FR550801 A FR 550801A FR 550801D A FR550801D A FR 550801DA FR 550801 A FR550801 A FR 550801A
Authority
FR
France
Prior art keywords
electric motor
speed reducer
motor operating
adjustable speed
reducer device
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
Other languages
French (fr)
Inventor
Pierre Ramus
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
Application granted granted Critical
Publication of FR550801A publication Critical patent/FR550801A/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
    • F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
    • F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
    • F16H15/04—Gearings providing a continuous range of gear ratios
    • F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
    • F16H15/08—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B is a disc with a flat or approximately flat friction surface
    • F16H15/10—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B is a disc with a flat or approximately flat friction surface in which the axes of the two members cross or intersect

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR550801D 1922-04-20 1922-04-20 Adjustable speed reducer device for electric motor operating automatic pianos Expired FR550801A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR550801T 1922-04-20

Publications (1)

Publication Number Publication Date
FR550801A true FR550801A (en) 1923-03-21

Family

ID=8936439

Family Applications (1)

Application Number Title Priority Date Filing Date
FR550801D Expired FR550801A (en) 1922-04-20 1922-04-20 Adjustable speed reducer device for electric motor operating automatic pianos

Country Status (1)

Country Link
FR (1) FR550801A (en)

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