GB658802A - Improvements in or relating to pawl and ratchet mechanisms - Google Patents

Improvements in or relating to pawl and ratchet mechanisms

Info

Publication number
GB658802A
GB658802A GB3345248A GB3345248A GB658802A GB 658802 A GB658802 A GB 658802A GB 3345248 A GB3345248 A GB 3345248A GB 3345248 A GB3345248 A GB 3345248A GB 658802 A GB658802 A GB 658802A
Authority
GB
United Kingdom
Prior art keywords
ratchet
pawls
plungers
wheel
rockers
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
GB3345248A
Inventor
William Gifford Carson
Brian George Corry
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.)
TUFNOL Ltd
Original Assignee
TUFNOL 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 TUFNOL Ltd filed Critical TUFNOL Ltd
Priority to GB3345248A priority Critical patent/GB658802A/en
Publication of GB658802A publication Critical patent/GB658802A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/12—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant
    • G05G5/14—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant by locking a member with respect to a fixed quadrant, rod, or the like
    • G05G5/18—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant by locking a member with respect to a fixed quadrant, rod, or the like by positive interengagement, e.g. by a pawl
    • 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
    • F16D41/12—Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Mechanical Control Devices (AREA)
  • Toys (AREA)

Abstract

658,802. Winches. TUFNOL, Ltd. Dec. 29, 1948, No. 33452. [Class 78 (v)] [Also in Group XXIV] A ratchet-controlled hand-operated winch consists of a base a fixed to a support, with a. cylindrical post b on which is formed a ratchet-wheel c. The winch barrel comprises a main cylindrical part d rotatably mounted on the post b, end flanges e and cover pieces f. Within the barrel d and parallel to its axis are four longitudinal bores each carrying a spindle g supported at its extremities by the cover-pieces f; on each spindle is a pawl h and rocker i, the pawls and rockets being accommodated in recesses in the flanges e. A member angularly movable by the knob k through a distance determined by the stop l is mounted in the flange associated with the rockers, and carries four rocker actuators in the form of radiallyextending plungers o loaded by springs p adapted to bear at their outer ends on the flat edges of the rockers. Spokes m extending radially from the hand wheel n are attached to the same flange. To reduce the range of lostmotion between the hand wheel and ratchet four pawls are provided and either the spacing of the spindles g or the number of teeth on the ratchet-wheel c are made such that the pawls can engage in succession. To operate the ratchet the plungers o occupy the position shown in Fig. 2 and to disengage them the knob k is rotated so that the lines of action of the plungers moves to the opposite side of the axis of the spindles g.
GB3345248A 1948-12-29 1948-12-29 Improvements in or relating to pawl and ratchet mechanisms Expired GB658802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3345248A GB658802A (en) 1948-12-29 1948-12-29 Improvements in or relating to pawl and ratchet mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3345248A GB658802A (en) 1948-12-29 1948-12-29 Improvements in or relating to pawl and ratchet mechanisms

Publications (1)

Publication Number Publication Date
GB658802A true GB658802A (en) 1951-10-10

Family

ID=10353135

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3345248A Expired GB658802A (en) 1948-12-29 1948-12-29 Improvements in or relating to pawl and ratchet mechanisms

Country Status (1)

Country Link
GB (1) GB658802A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2946562A (en) * 1956-02-14 1960-07-26 Handley Brown Heater Company Mooring reel
US3288439A (en) * 1965-01-25 1966-11-29 Tracy S Holmes Winch
GB2284457A (en) * 1993-12-02 1995-06-07 Alan Mccormack A washing line unit
GB2346190A (en) * 1999-02-01 2000-08-02 A C Cossor & Son Ratchet mechanism
WO2000044277A3 (en) * 1999-02-01 2000-12-07 A C Cossor & Son Surgical Ltd Improvements in or relating to sphygmomanometers and other devices

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2946562A (en) * 1956-02-14 1960-07-26 Handley Brown Heater Company Mooring reel
US3288439A (en) * 1965-01-25 1966-11-29 Tracy S Holmes Winch
GB2284457A (en) * 1993-12-02 1995-06-07 Alan Mccormack A washing line unit
GB2284457B (en) * 1993-12-02 1998-05-20 Alan Mccormack A locking device for a washing line
GB2346190A (en) * 1999-02-01 2000-08-02 A C Cossor & Son Ratchet mechanism
WO2000044277A3 (en) * 1999-02-01 2000-12-07 A C Cossor & Son Surgical Ltd Improvements in or relating to sphygmomanometers and other devices

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