GB239950A - Improvements in push-button control systems for electric motors and other apparatus - Google Patents

Improvements in push-button control systems for electric motors and other apparatus

Info

Publication number
GB239950A
GB239950A GB1551824A GB1551824A GB239950A GB 239950 A GB239950 A GB 239950A GB 1551824 A GB1551824 A GB 1551824A GB 1551824 A GB1551824 A GB 1551824A GB 239950 A GB239950 A GB 239950A
Authority
GB
United Kingdom
Prior art keywords
push
button control
electric motors
buttons
control systems
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
GB1551824A
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.)
WAYGOOD OTIS Ltd
Original Assignee
WAYGOOD OTIS 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 WAYGOOD OTIS Ltd filed Critical WAYGOOD OTIS Ltd
Priority to GB1551824A priority Critical patent/GB239950A/en
Publication of GB239950A publication Critical patent/GB239950A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/02—Control systems without regulation, i.e. without retroactive action
    • B66B1/06—Control systems without regulation, i.e. without retroactive action electric
    • B66B1/14—Control systems without regulation, i.e. without retroactive action electric with devices, e.g. push-buttons, for indirect control of movements
    • B66B1/16—Control systems without regulation, i.e. without retroactive action electric with devices, e.g. push-buttons, for indirect control of movements with means for storing pulses controlling the movements of a single car or cage

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Push-Button Switches (AREA)

Abstract

239,950. Waygood-Otis, Ltd., and Clemence, E. June 27, 1924. Push-button control systems. -In push-button control for electric motors operating lifts &c., the circuits of the floor push-buttons 7<1>, 7<2>, 7<3> Fig. 2, or those of the ear push-buttons 4<1>, 4<2>, 4<3>, Fig. 3, are interconnected so that the closure of any one push-button switch breaks the circuits of the push-buttons above it, and thus allows only the lower to obtain control if two are pressed simultaneously. In the construction of the separate switches, a base 13, Fig. 5, carrying two normally closed stationary contacts 21 and two normally open contacts 22, Fig. 4, is held in a case 11 by a screwed-down cover 15 bearing a rubber ring 14.
GB1551824A 1924-06-27 1924-06-27 Improvements in push-button control systems for electric motors and other apparatus Expired GB239950A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1551824A GB239950A (en) 1924-06-27 1924-06-27 Improvements in push-button control systems for electric motors and other apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1551824A GB239950A (en) 1924-06-27 1924-06-27 Improvements in push-button control systems for electric motors and other apparatus

Publications (1)

Publication Number Publication Date
GB239950A true GB239950A (en) 1925-09-24

Family

ID=10060532

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1551824A Expired GB239950A (en) 1924-06-27 1924-06-27 Improvements in push-button control systems for electric motors and other apparatus

Country Status (1)

Country Link
GB (1) GB239950A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251727A (en) * 1988-07-28 1992-07-15 Lutron Electronics Co Wallbox-mountable electrical devices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251727A (en) * 1988-07-28 1992-07-15 Lutron Electronics Co Wallbox-mountable electrical devices
GB2251727B (en) * 1988-07-28 1993-03-24 Lutron Electronics Co Wallbox-mountable electrical control

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