GB643288A - Improvements in or relating to bicycle and like cranks - Google Patents

Improvements in or relating to bicycle and like cranks

Info

Publication number
GB643288A
GB643288A GB2965347A GB2965347A GB643288A GB 643288 A GB643288 A GB 643288A GB 2965347 A GB2965347 A GB 2965347A GB 2965347 A GB2965347 A GB 2965347A GB 643288 A GB643288 A GB 643288A
Authority
GB
United Kingdom
Prior art keywords
chain wheel
support
crank arm
bicycle
spigot
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
GB2965347A
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.)
WILLIAM BERNARD CHATER LEA
Original Assignee
WILLIAM BERNARD CHATER LEA
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 WILLIAM BERNARD CHATER LEA filed Critical WILLIAM BERNARD CHATER LEA
Priority to GB2965347A priority Critical patent/GB643288A/en
Publication of GB643288A publication Critical patent/GB643288A/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
    • B62M3/00—Construction of cranks operated by hand or foot

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Transmission Devices (AREA)

Abstract

643,288. Coupling rotary elements. LEA, W. B. CHATER-. Nov. 6. 1947, No. 29653. [Class 80(ii)] [Also in Group XXII] A bicycle crank or the like in which a chain wheel or its support 12 is brazed or welded over a spigot 28 on a crank arm 10 has a shoulder 32 on the crank arm which engages a face 38 on the chain wheel or its support to prevent relative rotation. The faces 32, 38 may be flat or arcuate and eccentric with the spigot and the chain wheel support may have more than three arms or may be a disc, or the chain wheel may be mounted directly on the crank arm.
GB2965347A 1947-11-06 1947-11-06 Improvements in or relating to bicycle and like cranks Expired GB643288A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2965347A GB643288A (en) 1947-11-06 1947-11-06 Improvements in or relating to bicycle and like cranks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2965347A GB643288A (en) 1947-11-06 1947-11-06 Improvements in or relating to bicycle and like cranks

Publications (1)

Publication Number Publication Date
GB643288A true GB643288A (en) 1950-09-15

Family

ID=10294979

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2965347A Expired GB643288A (en) 1947-11-06 1947-11-06 Improvements in or relating to bicycle and like cranks

Country Status (1)

Country Link
GB (1) GB643288A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4704919A (en) * 1984-11-28 1987-11-10 Durham Roger O Two-piece crankshaft for bicycles
US5644953A (en) * 1995-09-12 1997-07-08 Cyclone Precision, Inc. Crank assembly for a bicycle
GB2529923A (en) * 2015-05-01 2016-03-09 Frogbikes Ltd Pedal cycle drivetrain component

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4704919A (en) * 1984-11-28 1987-11-10 Durham Roger O Two-piece crankshaft for bicycles
US5644953A (en) * 1995-09-12 1997-07-08 Cyclone Precision, Inc. Crank assembly for a bicycle
GB2529923A (en) * 2015-05-01 2016-03-09 Frogbikes Ltd Pedal cycle drivetrain component
GB2529923B (en) * 2015-05-01 2016-10-05 Frogbikes Ltd Pedal cycle drivetrain

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