GB216972A - Improvements in electrical devices for the control of mechanical movements - Google Patents
Improvements in electrical devices for the control of mechanical movementsInfo
- 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
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.
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)
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 |
-
1923
- 1923-03-22 GB GB822523A patent/GB216972A/en not_active Expired
Cited By (1)
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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