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GB488407A - Improvements in and relating to epicyclic change-speed gears for cycles - Google Patents

Improvements in and relating to epicyclic change-speed gears for cycles

Info

Publication number
GB488407A
GB488407A GB3407137A GB3407137A GB488407A GB 488407 A GB488407 A GB 488407A GB 3407137 A GB3407137 A GB 3407137A GB 3407137 A GB3407137 A GB 3407137A GB 488407 A GB488407 A GB 488407A
Authority
GB
United Kingdom
Prior art keywords
existing
wheel
teeth
free
hub
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
GB3407137A
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.)
ZYGFRYD FRITZ RUMPLER
Original Assignee
ZYGFRYD FRITZ RUMPLER
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 ZYGFRYD FRITZ RUMPLER filed Critical ZYGFRYD FRITZ RUMPLER
Priority to GB3407137A priority Critical patent/GB488407A/en
Publication of GB488407A publication Critical patent/GB488407A/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
    • B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

488,407. Change speed gearing. RUMPLER, Z. F. Dec. 9, 1937, No. 34071. [Class 80 (ii)] A two-speed epicyclic gear, adapted to be used with an existing cycle free-wheel hub without modification of either the hub or of the cycle-frame, comprises a combined free-wheel driving-head 19 and planet-carrier, which'replaces the existing free-wheel driving- head, constitutes the driven element of the gear, and provides a .ball-bearing 7<1> for the driving annulus 1, which is formed as a casing carrying sprocket-teeth 2. The fixed spindle 5, which replaces the existing spindle, loosely carries the sun-wheel 4, which is moved axially into engagement with clutch-teeth 20 on the carrier, for solid drive, and with fixed teeth 21, for reduced drive. The assembly is not substantially wider than the existing freewheel hub.
GB3407137A 1937-12-09 1937-12-09 Improvements in and relating to epicyclic change-speed gears for cycles Expired GB488407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3407137A GB488407A (en) 1937-12-09 1937-12-09 Improvements in and relating to epicyclic change-speed gears for cycles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3407137A GB488407A (en) 1937-12-09 1937-12-09 Improvements in and relating to epicyclic change-speed gears for cycles

Publications (1)

Publication Number Publication Date
GB488407A true GB488407A (en) 1938-07-06

Family

ID=10361018

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3407137A Expired GB488407A (en) 1937-12-09 1937-12-09 Improvements in and relating to epicyclic change-speed gears for cycles

Country Status (1)

Country Link
GB (1) GB488407A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467136A1 (en) * 1979-10-09 1981-04-17 Fichtel & Sachs Ag TRANSMISSION HUB FOR BICYCLES OR SIMILAR VEHICLES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467136A1 (en) * 1979-10-09 1981-04-17 Fichtel & Sachs Ag TRANSMISSION HUB FOR BICYCLES OR SIMILAR VEHICLES
US4400999A (en) 1979-10-09 1983-08-30 Fichtel & Sachs Ag Drive hub for bicycles or the like

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