GB645364A - The expanding single cog-wheel variable speed gearing (bicycle) - Google Patents

The expanding single cog-wheel variable speed gearing (bicycle)

Info

Publication number
GB645364A
GB645364A GB2553447A GB2553447A GB645364A GB 645364 A GB645364 A GB 645364A GB 2553447 A GB2553447 A GB 2553447A GB 2553447 A GB2553447 A GB 2553447A GB 645364 A GB645364 A GB 645364A
Authority
GB
United Kingdom
Prior art keywords
bicycle
flange
engaging
variable speed
speed gearing
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
GB2553447A
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.)
THOMAS WILLIAM SHAUGHNESSY
Original Assignee
THOMAS WILLIAM SHAUGHNESSY
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 THOMAS WILLIAM SHAUGHNESSY filed Critical THOMAS WILLIAM SHAUGHNESSY
Priority to GB2553447A priority Critical patent/GB645364A/en
Publication of GB645364A publication Critical patent/GB645364A/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
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/08—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving eccentrically- mounted or elliptically-shaped driving or driven wheel; with expansible driving or driven wheel

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)

Abstract

645,364. Variable speed gearing. SHAUGHNESSY, T., W. Sept. 19, 1947, No. 25534. [Class 80(ii)] A bicycle variable-speed chain gearing comprises an expanding rear sprocket wheel formed of four segments B, each having on one side thereof axial pins F engaging slots V in a flange C having ratchet teeth by which drive is conveyed through pawls G<SP>2</SP>, G<SP>3</SP>, a flange P and an extension R to the rear wheel hub (not shown), and on the other side thereof an axial pin O engaging a slot A in another flange C<SP>3</SP> held stationary on back pedalling by pawls G. G<SP>4</SP> to effect radial movement of the segments B. The flanges C, C<SP>2</SP> run on ball bearings D<SP>2</SP>, D respectively; and pins Y engaging the rear fork of the bicycle (not shown) hold a flange W stationary. The chain is tensioned by running between two rollers I whose spindles K, mounted in a frame L, M, are acted upon by a tension spring J.
GB2553447A 1947-09-19 1947-09-19 The expanding single cog-wheel variable speed gearing (bicycle) Expired GB645364A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2553447A GB645364A (en) 1947-09-19 1947-09-19 The expanding single cog-wheel variable speed gearing (bicycle)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2553447A GB645364A (en) 1947-09-19 1947-09-19 The expanding single cog-wheel variable speed gearing (bicycle)

Publications (1)

Publication Number Publication Date
GB645364A true GB645364A (en) 1950-11-01

Family

ID=10229229

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2553447A Expired GB645364A (en) 1947-09-19 1947-09-19 The expanding single cog-wheel variable speed gearing (bicycle)

Country Status (1)

Country Link
GB (1) GB645364A (en)

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