GB755094A - Elevator safety device - Google Patents

Elevator safety device

Info

Publication number
GB755094A
GB755094A GB3441454A GB3441454A GB755094A GB 755094 A GB755094 A GB 755094A GB 3441454 A GB3441454 A GB 3441454A GB 3441454 A GB3441454 A GB 3441454A GB 755094 A GB755094 A GB 755094A
Authority
GB
United Kingdom
Prior art keywords
speed
jaw
cam
shoe
cage
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
GB3441454A
Inventor
Jacob Adriaan Nederbragt
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.)
Machf Der P M Duyvis & Co Fa N
Original Assignee
Machf Der P M Duyvis & Co Fa N
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 Machf Der P M Duyvis & Co Fa N filed Critical Machf Der P M Duyvis & Co Fa N
Priority to GB3441454A priority Critical patent/GB755094A/en
Publication of GB755094A publication Critical patent/GB755094A/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
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
    • F16D55/26—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member without self-tightening action
    • 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
    • B66B5/185—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 acting on main ropes or main cables
    • 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)
  • General Engineering & Computer Science (AREA)
  • Braking Arrangements (AREA)

Abstract

755,094. Catch gear for lifts. NAAMLOOZE VENNOOTSCHAP MACHINEFABRIEK DER FIRMA P. M. DUYVIS & CO. Nov. 26, 1954, No. 34414/54. Class 78 (3). A brake for limiting the speed of a lift comprises a pair of friction material faced shoes 1, 2 which grip the hoisting rope (not shown) when the cage exceeds a predetermined speed. The shoe 2 is moved towards shoe 1 by a cam 13 operatively connected to a fluid pressure thruster 10 which is actuated by means (not shown) responsive to cage speed. Wedges 16 located on each side of cam 13 between the jaw 2 and rollers 15, and urged downwardly by their own weight or by a spring (not shown), lock the jaw 2 in the braking position until released manually.
GB3441454A 1954-11-26 1954-11-26 Elevator safety device Expired GB755094A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3441454A GB755094A (en) 1954-11-26 1954-11-26 Elevator safety device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3441454A GB755094A (en) 1954-11-26 1954-11-26 Elevator safety device

Publications (1)

Publication Number Publication Date
GB755094A true GB755094A (en) 1956-08-15

Family

ID=10365347

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3441454A Expired GB755094A (en) 1954-11-26 1954-11-26 Elevator safety device

Country Status (1)

Country Link
GB (1) GB755094A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105605200A (en) * 2016-04-03 2016-05-25 王美金 Stay wire pulley device capable of stopping slip through current
US11661314B2 (en) 2016-11-10 2023-05-30 Inventio Ag Cable brake, elevator car and elevator system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105605200A (en) * 2016-04-03 2016-05-25 王美金 Stay wire pulley device capable of stopping slip through current
CN105605200B (en) * 2016-04-03 2017-12-29 王美金 It is a kind of to pass through the pull wire pulley device of electric current on-slip
US11661314B2 (en) 2016-11-10 2023-05-30 Inventio Ag Cable brake, elevator car and elevator system

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