GB169559A - Improvements in or relating to locking and unlocking devices for lift cages and well doors - Google Patents

Improvements in or relating to locking and unlocking devices for lift cages and well doors

Info

Publication number
GB169559A
GB169559A GB2146120A GB2146120A GB169559A GB 169559 A GB169559 A GB 169559A GB 2146120 A GB2146120 A GB 2146120A GB 2146120 A GB2146120 A GB 2146120A GB 169559 A GB169559 A GB 169559A
Authority
GB
United Kingdom
Prior art keywords
lock
locking
switch
beak
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
GB2146120A
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.)
WILLIAM GILBERT CARTER
Original Assignee
WILLIAM GILBERT CARTER
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 WILLIAM GILBERT CARTER filed Critical WILLIAM GILBERT CARTER
Priority to GB2146120A priority Critical patent/GB169559A/en
Publication of GB169559A publication Critical patent/GB169559A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Lock And Its Accessories (AREA)

Abstract

169,559. Carter, W. G. July 16, 1920. Lift doors, locking and unlocking.-In a combined electric switch and mechanical door lock, the insertion of the beak of the lock into the lock casing brings the switch elements first into alignment and then into contact. One switch member g is carried by a slidable rod f and the other member h is mounted at one end of a lever m. The beak of the lock is fixed to the leading picket of the well gate and comprises a fixed member a and a pivoted member b. When the beak enters the lock, the member a pushes back the rod f until the switch member g is in position to be engaged by the switch member h, and so complete the circuit when the lever m is rocked. This latter movement occurs when the pivoted member b has raised the guard-plate j and surmounted the locking-bar l. The spring-controlled guardplate j is locked in the position shown by a spring-pressed bar n, when the cage is away from the landing, and is released by lever mechanism actuated by a ramp on the cage.
GB2146120A 1920-07-16 1920-07-16 Improvements in or relating to locking and unlocking devices for lift cages and well doors Expired GB169559A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2146120A GB169559A (en) 1920-07-16 1920-07-16 Improvements in or relating to locking and unlocking devices for lift cages and well doors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2146120A GB169559A (en) 1920-07-16 1920-07-16 Improvements in or relating to locking and unlocking devices for lift cages and well doors

Publications (1)

Publication Number Publication Date
GB169559A true GB169559A (en) 1921-10-06

Family

ID=10163323

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2146120A Expired GB169559A (en) 1920-07-16 1920-07-16 Improvements in or relating to locking and unlocking devices for lift cages and well doors

Country Status (1)

Country Link
GB (1) GB169559A (en)

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