GB138601A - Improvements in safety brakes for lifts - Google Patents

Improvements in safety brakes for lifts

Info

Publication number
GB138601A
GB138601A GB1471/20A GB147120A GB138601A GB 138601 A GB138601 A GB 138601A GB 1471/20 A GB1471/20 A GB 1471/20A GB 147120 A GB147120 A GB 147120A GB 138601 A GB138601 A GB 138601A
Authority
GB
United Kingdom
Prior art keywords
rails
guide
lever
lifts
spring
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
GB1471/20A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB138601A publication Critical patent/GB138601A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

138,601. Curry, J. Feb. 1, 1919, [Convention date]. Catch gear of mine-cage type. - Relates to safety suspending-apparatus for lifts. The ends of a pair of parallel bars 5 secured to the top of the cage 3 are formed with vertical grooves to receive the guide-rails 2 and with horizontal grooves in which slide clamps 8. Each clamp has a jaw 10, Fig. 4, to bear against the outer side of the guide rails and an elongated slot 11 to fit over an eccentric cam 12 carried by a lever 14. The outer end of each lever is formed as a serrated cam 21 which engages the inner side of the guide-rails. The inner end of each lever is pivotally connected to a block 15 which is connected to the hoisting cable 18 and pressed downwards by a spring 17. If the cable 18 breaks, the block moves downwards under the influence of the spring and the consequent movement of the levers applies the jaws 10 and cams 21 to the guide-rails.
GB1471/20A 1919-02-01 1920-01-16 Improvements in safety brakes for lifts Expired GB138601A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US138601XA 1919-02-01 1919-02-01

Publications (1)

Publication Number Publication Date
GB138601A true GB138601A (en) 1921-02-24

Family

ID=21762161

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1471/20A Expired GB138601A (en) 1919-02-01 1920-01-16 Improvements in safety brakes for lifts

Country Status (1)

Country Link
GB (1) GB138601A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6012553A (en) * 1997-04-11 2000-01-11 Inventio Ag Mount for a lift cage safety device
CN108358014A (en) * 2018-02-28 2018-08-03 林子暄 A kind of falling proof device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6012553A (en) * 1997-04-11 2000-01-11 Inventio Ag Mount for a lift cage safety device
CN108358014A (en) * 2018-02-28 2018-08-03 林子暄 A kind of falling proof device

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