GB1185007A - Improvements in or relating to Overload Devices - Google Patents

Improvements in or relating to Overload Devices

Info

Publication number
GB1185007A
GB1185007A GB5469A GB5469A GB1185007A GB 1185007 A GB1185007 A GB 1185007A GB 5469 A GB5469 A GB 5469A GB 5469 A GB5469 A GB 5469A GB 1185007 A GB1185007 A GB 1185007A
Authority
GB
United Kingdom
Prior art keywords
pins
clutch
balls
outward movement
recesses
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
GB5469A
Inventor
Eric Vawser
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.)
Eric Vawser & Co Ltd
Original Assignee
Eric Vawser & Co 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 Eric Vawser & Co Ltd filed Critical Eric Vawser & Co Ltd
Priority to GB5469A priority Critical patent/GB1185007A/en
Publication of GB1185007A publication Critical patent/GB1185007A/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
    • 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
    • F16D43/2028—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 at least one part moving radially between engagement and disengagement

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

1,185,007. Overload release clutches. ERIC VAWSER & CO. Ltd. 1 Jan., 1969, No. 54/69. Heading F2C. An overload release clutch comprises pins 11 radially slidable in a driven (or driving) sleeve 7 and having tapered ends 10 urged into engagement with corresponding recesses 8 in a driving (or driven) shaft 1 by spring pressed balls or rollers 13 engaging inclined surfaces 14 on the pins 11. On overload the inclined recesses 8 force the pins 11 radially outward to disengage the clutch. During radial outward movement of the pins 11 the balls 13 ride off the inclined surfaces 14 on to adjacent radial surfaces of the pin whereupon the clutch remains disengaged until manually reset. Projections 22 on the pins 11 engage an end plate 21 to limit radial outward movement of the pins 11. The spring loading of the balls 13 may be adjusted by a nut 18. The pins 11 may be held in engagement with the recesses 8 by an electromagnet during starting. The radially outward movement of the pins 11 during clutch disengagement may operate a warning light or alarm switch. The helical compression spring 15 may be replaced by Belleville springs. The sleeve 7 may be provided with an outer sleeve radially spaced from the ends of the pins 11 and carrying radial screws aligned with the pins 11 to reset the clutch.
GB5469A 1969-01-01 1969-01-01 Improvements in or relating to Overload Devices Expired GB1185007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5469A GB1185007A (en) 1969-01-01 1969-01-01 Improvements in or relating to Overload Devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5469A GB1185007A (en) 1969-01-01 1969-01-01 Improvements in or relating to Overload Devices

Publications (1)

Publication Number Publication Date
GB1185007A true GB1185007A (en) 1970-03-18

Family

ID=9697588

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5469A Expired GB1185007A (en) 1969-01-01 1969-01-01 Improvements in or relating to Overload Devices

Country Status (1)

Country Link
GB (1) GB1185007A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0303121A1 (en) * 1987-08-14 1989-02-15 British Autogard Limited Torque limiting clutch
GB2312716A (en) * 1996-04-29 1997-11-05 Appeal Blinds Limited Overload clutch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0303121A1 (en) * 1987-08-14 1989-02-15 British Autogard Limited Torque limiting clutch
GB2312716A (en) * 1996-04-29 1997-11-05 Appeal Blinds Limited Overload clutch

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees