GB1028196A - Improvements in or relating to service lifts - Google Patents

Improvements in or relating to service lifts

Info

Publication number
GB1028196A
GB1028196A GB3613663A GB3613663A GB1028196A GB 1028196 A GB1028196 A GB 1028196A GB 3613663 A GB3613663 A GB 3613663A GB 3613663 A GB3613663 A GB 3613663A GB 1028196 A GB1028196 A GB 1028196A
Authority
GB
United Kingdom
Prior art keywords
lift car
arm
door
lift
shaft
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
GB3613663A
Inventor
Jack Pilling
Robert Christopher Thompson
Anthony David Ryder
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.)
Wm Wadsworth & Sons Ltd
Original Assignee
Wm Wadsworth & Sons 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 Wm Wadsworth & Sons Ltd filed Critical Wm Wadsworth & Sons Ltd
Priority to GB3613663A priority Critical patent/GB1028196A/en
Publication of GB1028196A publication Critical patent/GB1028196A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/14—Control systems or devices
    • B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
    • B66B13/18—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors
    • B66B13/20—Lock mechanisms actuated mechanically by abutments or projections on the cages

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

1,028,196. Service lifts. WM. WADSWORTH & SONS Ltd. Sept. 7, 1964 [Sept. 13, 1963], No. 36136/63. Heading B8L. In a service lift in which hatch doors 14 are pivoted in the shaft, an arm 15 secured to each door is normally engaged by a latch bar 17, which locks the arm 15 with the door in the closed position, and normally closes a switch 22 in the lift control circuit. The bar 17 is pivoted at 19 in the shaft and is provided with a roller 20. When the lift car 13 is in the correct position, a striker plate 21 thereon engages the roller 20 and pivots the bar 17, against the action of a spring 18, out of engagement with notches 16 on the arm 15. The door may then be opened manually, the arm 15 allowing the switch 22 to open to prevent movement of the lift car. The lift car drive is by means of a roller chain 26 passing over idler pulleys 27 and a drive pulley 28, which is driven through a friction clutch by an electric motor thereby allowing the lift car to be driven on to rubber buffers at the top and bottom of the shaft. The drive chain 26, the lift car 13, a counterbalance weight 31 and spring 32 form. a closed loop.
GB3613663A 1963-09-13 1963-09-13 Improvements in or relating to service lifts Expired GB1028196A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3613663A GB1028196A (en) 1963-09-13 1963-09-13 Improvements in or relating to service lifts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3613663A GB1028196A (en) 1963-09-13 1963-09-13 Improvements in or relating to service lifts

Publications (1)

Publication Number Publication Date
GB1028196A true GB1028196A (en) 1966-05-04

Family

ID=10385330

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3613663A Expired GB1028196A (en) 1963-09-13 1963-09-13 Improvements in or relating to service lifts

Country Status (1)

Country Link
GB (1) GB1028196A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102963800A (en) * 2011-08-31 2013-03-13 东芝电梯株式会社 Elevator door device
CN104003270A (en) * 2014-06-10 2014-08-27 昆山亿顺自动化科技有限公司 Lock for landing door of construction elevator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102963800A (en) * 2011-08-31 2013-03-13 东芝电梯株式会社 Elevator door device
CN102963800B (en) * 2011-08-31 2015-05-20 东芝电梯株式会社 Elevator door device
CN104003270A (en) * 2014-06-10 2014-08-27 昆山亿顺自动化科技有限公司 Lock for landing door of construction elevator

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