GB191206967A - Improvements in Safety Locking and Latching Devices for Lift Gates or Doors. - Google Patents

Improvements in Safety Locking and Latching Devices for Lift Gates or Doors.

Info

Publication number
GB191206967A
GB191206967A GB191206967DA GB191206967A GB 191206967 A GB191206967 A GB 191206967A GB 191206967D A GB191206967D A GB 191206967DA GB 191206967 A GB191206967 A GB 191206967A
Authority
GB
United Kingdom
Prior art keywords
gate
spring
doors
notch
lever
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
Inventor
John Fothergill
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
Application granted granted Critical
Publication of GB191206967A publication Critical patent/GB191206967A/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)
  • Elevator Door Apparatuses (AREA)

Abstract

6967. Fothergill, J. March 21. Lift cages and doors, locking and unlocking.- Comprises an automatic locking and unlocking device for lift gates or doors which may he combined with a main-circuit switch and a cnshioning-device for the door. A bolt c attached to the gate engages a lever l when the gate is closed, a spring s forcing the roller r into engagement with a notch / in the bolt. The spring s is not sufficiently strong to prevent the door from being opened by hand, but prevents the gate from rebounding on being slammed to. A spring-pressed sliding bolt a adapted to engage a lug h on the lever l and to lock the lever when the cage is away from the floor is released by a cam on the cage upon arrival of the latter. To provide against the possibility of the roller r failing to engage the notch f, a second notch is provided. A switch member p on the gate engages spring contacts t<1>, t<2>, and a spring buffer may be fitted to reduce shock on the closing of the gate.
GB191206967D 1912-03-21 1912-03-12 Improvements in Safety Locking and Latching Devices for Lift Gates or Doors. Expired GB191206967A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191206967T 1912-03-21

Publications (1)

Publication Number Publication Date
GB191206967A true GB191206967A (en) 1912-07-18

Family

ID=32570885

Family Applications (2)

Application Number Title Priority Date Filing Date
GB191206967D Expired GB191206967A (en) 1912-03-21 1912-03-12 Improvements in Safety Locking and Latching Devices for Lift Gates or Doors.
GB191503062D Expired GB191503062A (en) 1912-03-21 1915-02-25 Improvements in Safety Locking and Latching Devices for Lift Gates or Doors.

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB191503062D Expired GB191503062A (en) 1912-03-21 1915-02-25 Improvements in Safety Locking and Latching Devices for Lift Gates or Doors.

Country Status (1)

Country Link
GB (2) GB191206967A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109311630A (en) * 2016-06-27 2019-02-05 三菱电机株式会社 Elevator device
CN111470397A (en) * 2020-05-28 2020-07-31 上海贝思特门机有限公司 Synchronous door sword of integrated sedan-chair lock of interior clamp formula

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109311630A (en) * 2016-06-27 2019-02-05 三菱电机株式会社 Elevator device
CN111470397A (en) * 2020-05-28 2020-07-31 上海贝思特门机有限公司 Synchronous door sword of integrated sedan-chair lock of interior clamp formula
CN111470397B (en) * 2020-05-28 2023-12-22 上海贝思特门机有限公司 Synchronous door knife of integrated sedan-chair lock of interior clamp formula

Also Published As

Publication number Publication date
GB191503062A (en) 1915-08-05

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