GB216972A - Improvements in electrical devices for the control of mechanical movements - Google Patents

Improvements in electrical devices for the control of mechanical movements

Info

Publication number
GB216972A
GB216972A GB822523A GB822523A GB216972A GB 216972 A GB216972 A GB 216972A GB 822523 A GB822523 A GB 822523A GB 822523 A GB822523 A GB 822523A GB 216972 A GB216972 A GB 216972A
Authority
GB
United Kingdom
Prior art keywords
pawl
checking
cam
lever
movable member
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
GB822523A
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.)
English Electric Co Ltd
Original Assignee
English Electric Co 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 English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB822523A priority Critical patent/GB216972A/en
Publication of GB216972A publication Critical patent/GB216972A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

216,972. English Electric Co., Ltd., and Morris, F. March 22, 1923. Locking rotary elements by positive detents.- Relates to an electromagnetically-controlled checking mechanism for a step-by-step movable member, such as an electric motor controller. Each step of the movable member, which may be a drum on a manually turned shaft 1. acts through projecting portions of a cam 3 upon a lever 5 spring connected to a checking pawl 12 which is thus brought into the path of teeth on a ratchet disc 4. An electromagnet 9 if sufficiently energized holds the pawl in the checking position as shown in Fig. 2. When the magnet is deenergized, the lever is drawn away by an adjustable spring 11, the roller end 6 entering a recess of the cam, and the pawl is lifted clear of the ratchet teeth. In modifications the mechanical detent is replaced by an electric contact device adapted to open a circuit controlling the operating mechanism.
GB822523A 1923-03-22 1923-03-22 Improvements in electrical devices for the control of mechanical movements Expired GB216972A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB822523A GB216972A (en) 1923-03-22 1923-03-22 Improvements in electrical devices for the control of mechanical movements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB822523A GB216972A (en) 1923-03-22 1923-03-22 Improvements in electrical devices for the control of mechanical movements

Publications (1)

Publication Number Publication Date
GB216972A true GB216972A (en) 1924-06-12

Family

ID=9848342

Family Applications (1)

Application Number Title Priority Date Filing Date
GB822523A Expired GB216972A (en) 1923-03-22 1923-03-22 Improvements in electrical devices for the control of mechanical movements

Country Status (1)

Country Link
GB (1) GB216972A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112974673A (en) * 2021-02-25 2021-06-18 渝北区瑞诚机械设备租赁服务部 Building material cutting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112974673A (en) * 2021-02-25 2021-06-18 渝北区瑞诚机械设备租赁服务部 Building material cutting device

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