GB733742A - Improvements in or relating to overload release devices - Google Patents

Improvements in or relating to overload release devices

Info

Publication number
GB733742A
GB733742A GB1806253A GB1806253A GB733742A GB 733742 A GB733742 A GB 733742A GB 1806253 A GB1806253 A GB 1806253A GB 1806253 A GB1806253 A GB 1806253A GB 733742 A GB733742 A GB 733742A
Authority
GB
United Kingdom
Prior art keywords
helical
clutch
overload
balls
shaft
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
GB1806253A
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.)
Campbell & Isherwood Ltd
Original Assignee
Campbell & Isherwood 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 Campbell & Isherwood Ltd filed Critical Campbell & Isherwood Ltd
Priority to GB1806253A priority Critical patent/GB733742A/en
Publication of GB733742A publication Critical patent/GB733742A/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
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/04—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type
    • F16D7/06—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with intermediate balls or rollers
    • F16D7/10—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with intermediate balls or rollers moving radially between engagement and disengagement
    • 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
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/20—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure
    • F16D43/202—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure of the ratchet type
    • F16D43/204—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure of the ratchet type with intermediate balls or rollers
    • F16D43/208—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure of the ratchet type with intermediate balls or rollers moving radially between engagement and disengagement

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)

Abstract

733,742. Overload-release clutches. CAMPBELL & ISHERWOOD, Ltd., and MEREDITH, J. June 30, 1953, No. 18062/53. Class 80 (2). A toothed clutch 17a, between a driving member 16 and an axially-movable member 21 connected through helical splines to a member 19 secured on a driven shaft 23, is normally held engaged by balls 24 housed in radial openings in the hollow shaft 23 and held engaged in a chamfered groove 25 in the hub 22 of member 21 by a central ball 26 loaded by an adjustable spring 17. On overload, member 21 moves axially, due to the helical splines, pushing the balls 24 inwards with a snap action, and the clutch then remains disengaged until re-set. To effect this, a locking member 31 is depressed into engagement with helical teeth 29 on member 21 so as to hold the latter against rotation, and the shaft 23 is turned manually. As shown, member 16 is driven by an electric motor 10 through reducing gearing. The clutch teeth 17a may be helical. Specification 636,404 is referred to.
GB1806253A 1953-06-30 1953-06-30 Improvements in or relating to overload release devices Expired GB733742A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1806253A GB733742A (en) 1953-06-30 1953-06-30 Improvements in or relating to overload release devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1806253A GB733742A (en) 1953-06-30 1953-06-30 Improvements in or relating to overload release devices

Publications (1)

Publication Number Publication Date
GB733742A true GB733742A (en) 1955-07-20

Family

ID=10105985

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1806253A Expired GB733742A (en) 1953-06-30 1953-06-30 Improvements in or relating to overload release devices

Country Status (1)

Country Link
GB (1) GB733742A (en)

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