GB1300498A - Overspeed brakes - Google Patents

Overspeed brakes

Info

Publication number
GB1300498A
GB1300498A GB08733/71A GB1873371A GB1300498A GB 1300498 A GB1300498 A GB 1300498A GB 08733/71 A GB08733/71 A GB 08733/71A GB 1873371 A GB1873371 A GB 1873371A GB 1300498 A GB1300498 A GB 1300498A
Authority
GB
United Kingdom
Prior art keywords
car
brake
bar
generator
movement
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
GB08733/71A
Inventor
Arthur R Burch
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.)
Doosan Bobcat North America Inc
Original Assignee
Clark Equipment Co
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 Clark Equipment Co filed Critical Clark Equipment Co
Publication of GB1300498A publication Critical patent/GB1300498A/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
    • 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
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

1300498 Elevation overspeed brake CLARK EQUIPMENT CO 3 June 1971 [15 June 1970] 18733/71 Headings B8B and B8L An overspeed brake mechanism on a stacker vehicle elevator car 10 movable within frames 12, 14, comprises a generator 18 for providing a speed reference signal of the car, brakes 24, 26 on the car for interacting with the frames and brake actuating means triggered when the speed reference signal exceeds a particular value. Each brake comprises a pair of shoes 32, 34 spring biased apart for engagement with flanges on the frame 14, but normally held inoperative against this spring bias by a keeper 46 having pins 50, 52 engaged in holes in the shoes. The keeper pins are subjected to a bias out of engagement with the shoes by a tension spring 64 acting on a bar 48 of the keeper 46, the bar 48 being normally prevented from moving by a half shaft 86 engaging a notch 88 in the bar. The shaft 86 is movable clear of the notch 88 to permit brake actuation upon a fork 96 being retracted by the armature 94 of a solenoid 92 energizable by the generator signal. Movement of the bar 48 for the brake 24 causes movement of a similar bar 72 of the brake 26, through a sprocket 60 and racks 58 formed on the two bars. The generator 18 is mounted on the car 10 and has a toothed rotor 20 drivable by engagement with a rack 22 formed on the frame 14, to generate a D.C. voltage having a polarity according to the direction of movement of the car. The circuit including the generator and solenoid 92 comprises a unidirectionally conductive device and is arranged to operate the solenoid only during downward movement of the car, when the car exceeds a pre-determined speed.
GB08733/71A 1970-06-15 1971-06-03 Overspeed brakes Expired GB1300498A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4616570A 1970-06-15 1970-06-15

Publications (1)

Publication Number Publication Date
GB1300498A true GB1300498A (en) 1972-12-20

Family

ID=21941963

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08733/71A Expired GB1300498A (en) 1970-06-15 1971-06-03 Overspeed brakes

Country Status (5)

Country Link
US (1) US3601227A (en)
CA (1) CA920249A (en)
DE (1) DE2128662A1 (en)
FR (1) FR2096313A5 (en)
GB (1) GB1300498A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107827051A (en) * 2017-11-29 2018-03-23 无锡中鼎集成技术有限公司 A kind of loading platform braking mechanism for piler

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3740635A (en) * 1971-10-05 1973-06-19 Kenway Eng Inc Overspeed sensor for safety brake system
US3835959A (en) * 1973-04-02 1974-09-17 Westinghouse Electric Corp Elevator system
DE2441265C2 (en) * 1974-08-28 1983-01-05 Philips Patentverwaltung Gmbh, 2000 Hamburg Device for braking a counterweight in an X-ray examination device
US3942607A (en) * 1974-09-06 1976-03-09 Dane Sobat Elevator safety brake
US5093388A (en) * 1989-03-28 1992-03-03 The United States Of America As Represented By The Secretary Of The Air Force Very high friction eleastomer formulation for use in static braking applications
JPH0416470A (en) * 1990-05-09 1992-01-21 Mitsubishi Electric Corp Safety device for elevator
US5322144A (en) * 1990-07-18 1994-06-21 Otis Elevator Company Active control of elevator platform
US5209325A (en) * 1991-04-12 1993-05-11 Eaton-Kenway, Inc. Braking apparatus and method for storage and retrieval vehicles
JP3278200B2 (en) * 1992-06-23 2002-04-30 三菱電機株式会社 Elevator data transmission equipment
US5386889A (en) * 1993-08-04 1995-02-07 Eaton-Kenway, Inc. Brake mechanism for a storage and retrieval vehicle
US5366045A (en) * 1993-09-03 1994-11-22 Eaton Corporation Brake mechanism for a storage and retrieval vehicle
MY118747A (en) * 1995-11-08 2005-01-31 Inventio Ag Method and device for increased safety in elevators
US6981575B2 (en) * 1999-09-27 2006-01-03 Otis Elevator Company Concrete rail safety device for an elevator car
US20060151255A1 (en) * 2004-06-30 2006-07-13 Wildeck, Inc. Vertical reciprocating conveyor
ES2296471B1 (en) * 2005-10-18 2009-08-03 Fco Javier Porras Vila (Titular Inicial Por Anularse La Transf. 200700126) AUTONOMOUS SAFETY BRAKE FOR ELEVATORS.
DE202008015472U1 (en) * 2008-07-25 2010-04-08 Sperian Fall Protection Deutschland Gmbh & Co. Kg Electronically controlled catching device for a fall arrest system
MX2013006934A (en) * 2010-12-17 2013-07-22 Inventio Ag Lift installation comprising car and counterweight.
RU2655444C1 (en) 2017-09-11 2018-05-29 Акционерное общество "Управляющая компания "Биохимического холдинга "Оргхим" Method for the isolation of phytosterols from tall pitch
CN109081279B (en) * 2018-09-12 2024-04-02 珠海格力智能装备有限公司 Locking mechanism and cargo carrying structure with same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1171243A (en) * 1915-06-19 1916-02-08 Prokop Jack Prokop Elevator safety device.
US1209099A (en) * 1915-08-30 1916-12-19 Richard Wunning Safety elevator attachment.
US3334287A (en) * 1963-07-05 1967-08-01 Ite Circuit Breaker Ltd Anti-slip relay for hoist control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107827051A (en) * 2017-11-29 2018-03-23 无锡中鼎集成技术有限公司 A kind of loading platform braking mechanism for piler
CN107827051B (en) * 2017-11-29 2024-03-29 无锡中鼎集成技术有限公司 Cargo carrying platform braking mechanism for stacker

Also Published As

Publication number Publication date
US3601227A (en) 1971-08-24
CA920249A (en) 1973-01-30
DE2128662A1 (en) 1971-12-23
FR2096313A5 (en) 1972-02-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees