FR872490A - Crank gear change for bicycles, tandems or similar - Google Patents

Crank gear change for bicycles, tandems or similar

Info

Publication number
FR872490A
FR872490A FR872490DA FR872490A FR 872490 A FR872490 A FR 872490A FR 872490D A FR872490D A FR 872490DA FR 872490 A FR872490 A FR 872490A
Authority
FR
France
Prior art keywords
tandems
bicycles
similar
gear change
crank gear
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
Jean Descours
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 FR872490A publication Critical patent/FR872490A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
    • B62M11/06—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with spur gear wheels

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
FR872490D 1940-11-07 1940-11-07 Crank gear change for bicycles, tandems or similar Expired FR872490A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR872490T 1940-11-07

Publications (1)

Publication Number Publication Date
FR872490A true FR872490A (en) 1942-06-10

Family

ID=9358927

Family Applications (1)

Application Number Title Priority Date Filing Date
FR872490D Expired FR872490A (en) 1940-11-07 1940-11-07 Crank gear change for bicycles, tandems or similar

Country Status (1)

Country Link
FR (1) FR872490A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059837A1 (en) * 1981-03-07 1982-09-15 Krupp Stahl AG Scraping or squeezing rollers for removing liquids from textile webs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059837A1 (en) * 1981-03-07 1982-09-15 Krupp Stahl AG Scraping or squeezing rollers for removing liquids from textile webs

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