GB1368974A - Brakes for materials hoists - Google Patents

Brakes for materials hoists

Info

Publication number
GB1368974A
GB1368974A GB5501571A GB5501571A GB1368974A GB 1368974 A GB1368974 A GB 1368974A GB 5501571 A GB5501571 A GB 5501571A GB 5501571 A GB5501571 A GB 5501571A GB 1368974 A GB1368974 A GB 1368974A
Authority
GB
United Kingdom
Prior art keywords
cams
braking
rail
cage
corners
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
GB5501571A
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.)
Ace Machinery Ltd
Original Assignee
Ace Machinery 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 Ace Machinery Ltd filed Critical Ace Machinery Ltd
Priority to GB5501571A priority Critical patent/GB1368974A/en
Publication of GB1368974A publication Critical patent/GB1368974A/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
    • F16D59/00—Self-acting brakes, e.g. coming into operation at a predetermined speed
    • F16D59/02—Self-acting brakes, e.g. coming into operation at a predetermined speed spring-loaded and adapted to be released by mechanical, fluid, or electromagnetic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B66B5/20—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of rotatable eccentrically-mounted members
    • 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
    • F16D59/00—Self-acting brakes, e.g. coming into operation at a predetermined speed

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

1368974 Lift cage catch gear ACE MACHINERY Ltd 16 Feb 1973 [26 Nov 1971] 55015/71 Heading B8L [Also in Division F2] An emergency hoist brake has a pair of cams 10, mounted either side of a guide rail and each having a running surface 11 adjacent to but spaced from the rail when non-actuated and a braking surface 12, a biased lever arrangement connecting the cams to a suspension beam having a pulley assembly for the hoist cage such that when forces due to the cage weight are released from the suspension beam, the levers pivot the cams into braking engagement with the rail. The running and braking surfaces 11, 12 are flattened and mutually angled at 45 degrees and the braking surfaces may have teeth. The cams 10 are mounted on shafts 14 mounted in holes at inner corners of respective pairs of triangular plates 15, outer corners of which are pivotally connected to approximately vertical levers 16 pivoted to the beam which carries the pulley assembly around which a hoisting rope extends. Pins 19 are mounted in the third, lower corners of the plates 15 and are biased towards each other by compression springs 18 for braking action.
GB5501571A 1971-11-26 1971-11-26 Brakes for materials hoists Expired GB1368974A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5501571A GB1368974A (en) 1971-11-26 1971-11-26 Brakes for materials hoists

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5501571A GB1368974A (en) 1971-11-26 1971-11-26 Brakes for materials hoists

Publications (1)

Publication Number Publication Date
GB1368974A true GB1368974A (en) 1974-10-02

Family

ID=10472712

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5501571A Expired GB1368974A (en) 1971-11-26 1971-11-26 Brakes for materials hoists

Country Status (1)

Country Link
GB (1) GB1368974A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141191A (en) * 1983-06-07 1984-12-12 Metry Engineering Limited Braking/arresting apparatus for rail mounted vehicles
US6176350B1 (en) * 1997-08-21 2001-01-23 Autzugstechnologie Schlosser Gmbh Progressive safety gear
WO2003045828A1 (en) * 2001-11-27 2003-06-05 Mitsubishi Denki Kabushiki Kaisha Emergency stopper of elevator
CN102849557A (en) * 2011-07-01 2013-01-02 艾勃得盈 Double-protection safety device used for elevator
CN104150312A (en) * 2014-07-23 2014-11-19 河北东方富达机械有限公司 Safety protection device for accidental movement of elevator car

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141191A (en) * 1983-06-07 1984-12-12 Metry Engineering Limited Braking/arresting apparatus for rail mounted vehicles
US6176350B1 (en) * 1997-08-21 2001-01-23 Autzugstechnologie Schlosser Gmbh Progressive safety gear
WO2003045828A1 (en) * 2001-11-27 2003-06-05 Mitsubishi Denki Kabushiki Kaisha Emergency stopper of elevator
CN1297466C (en) * 2001-11-27 2007-01-31 三菱电机株式会社 Emergency stopper of elevator
CN102849557A (en) * 2011-07-01 2013-01-02 艾勃得盈 Double-protection safety device used for elevator
CN104150312A (en) * 2014-07-23 2014-11-19 河北东方富达机械有限公司 Safety protection device for accidental movement of elevator car
CN104150312B (en) * 2014-07-23 2016-06-01 河北东方富达机械有限公司 Accidental movement of elevator cage safeguard protection device

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee