GB727955A - Improvements in or relating to free wheel units - Google Patents

Improvements in or relating to free wheel units

Info

Publication number
GB727955A
GB727955A GB2105853A GB2105853A GB727955A GB 727955 A GB727955 A GB 727955A GB 2105853 A GB2105853 A GB 2105853A GB 2105853 A GB2105853 A GB 2105853A GB 727955 A GB727955 A GB 727955A
Authority
GB
United Kingdom
Prior art keywords
transmission member
driving shaft
housing
freewheel
toothed
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
GB2105853A
Inventor
Thomas Arthur Hill
John Phillip Bass
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.)
BARFORD AGRICULTURAL Ltd
Original Assignee
BARFORD AGRICULTURAL Ltd
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 BARFORD AGRICULTURAL Ltd filed Critical BARFORD AGRICULTURAL Ltd
Priority to GB2105853A priority Critical patent/GB727955A/en
Publication of GB727955A publication Critical patent/GB727955A/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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/18—Freewheels or freewheel clutches with non-hinged detent

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

727,955. Freewheel clutches. BARFORD (AGRICULTURAL), Ltd. July 29, 1953, No. 21058/53. Class 80 (2). A reversible freewheel unit, which drives in either direction and allows freewheeling in both directions, comprises an internally-toothed freewheel housing 3, a rotary driving shaft 5, and a toothed transmission member 13 rotated by the driving shaft, the toothed transmission member being so supported as to assume one of two driving positions according to the direction of rotation of the driving shaft and changing from one toothed engagement with the housing to another when the direction of rotation of the driving shaft is reversed, the driving connection between the driving shaft 5 and the transmission member 13 including resiliently yieldable means 23-25 to permit freewheeling of the housing in either position of the transmission member. A sleeve 4 formed with a lobe 11 is fast on the driving shaft 5, the lobe engaging in a recess in the transmission member 13 which has teeth 14, 15 engageable with teeth 16 on the housing 3. A brake drum 19, within which the sleeve 4 rotates freely, is engaged lightly by stationary shoes 20 urged inwards by a garter spring 20a and carries pins 18 between which a tail 17 on the transmission member engages. The resilient yieldable means consists of a plunger 23 in the transmission member 13 loaded by a spring 25 to engage one of two flats 24 on the sleeve 4, and hold the tooth 14 (or 15) in yielding engagement with the teeth 16. On reversal of rotation of the driving shaft, the brake shoes 20 become momentarily effective to hold the drum 19 stationary and the transmission member 13 then pivots about one of the pins 18. The device is described as applied to a walk-type tractor, the shaft 5 being a driving axle and the freewheel housing 3 being secured to a wheel hub; a freewheel according to the invention connects each of two road wheels to the axle, to allow differential movement therebetween.
GB2105853A 1953-07-29 1953-07-29 Improvements in or relating to free wheel units Expired GB727955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2105853A GB727955A (en) 1953-07-29 1953-07-29 Improvements in or relating to free wheel units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2105853A GB727955A (en) 1953-07-29 1953-07-29 Improvements in or relating to free wheel units

Publications (1)

Publication Number Publication Date
GB727955A true GB727955A (en) 1955-04-13

Family

ID=10156475

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2105853A Expired GB727955A (en) 1953-07-29 1953-07-29 Improvements in or relating to free wheel units

Country Status (1)

Country Link
GB (1) GB727955A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150504A (en) * 1983-12-02 1985-07-03 Pa Consulting Services Improved drive unit
US4665821A (en) * 1983-12-02 1987-05-19 Pa Consulting Services Limited Franking machine having variable data incorporated onto endless bands
CN113015861A (en) * 2018-11-15 2021-06-22 马威克公司 Electric auxiliary device for a bicycle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150504A (en) * 1983-12-02 1985-07-03 Pa Consulting Services Improved drive unit
US4665821A (en) * 1983-12-02 1987-05-19 Pa Consulting Services Limited Franking machine having variable data incorporated onto endless bands
US4676155A (en) * 1983-12-02 1987-06-30 Pa Consulting Services Limited Drive unit
CN113015861A (en) * 2018-11-15 2021-06-22 马威克公司 Electric auxiliary device for a bicycle
CN113015861B (en) * 2018-11-15 2023-06-20 马威克集团公司 Electric auxiliary device for a bicycle

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