GB649143A - Impulse operated selector switch for alternating and direct current - Google Patents
Impulse operated selector switch for alternating and direct currentInfo
- Publication number
- GB649143A GB649143A GB6332/48A GB633248A GB649143A GB 649143 A GB649143 A GB 649143A GB 6332/48 A GB6332/48 A GB 6332/48A GB 633248 A GB633248 A GB 633248A GB 649143 A GB649143 A GB 649143A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- arm
- armature
- energization
- contact
- 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
- H01H51/00—Electromagnetic relays
- H01H51/02—Non-polarised relays
- H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
- H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
- H01H51/08—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet
- H01H51/082—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
649,143. Electromagnetic switches. GUARDIAN ELECTRIC MANUFACTURING CO. Feb. 28, 1948, No. 6332. Convention date, Oct. 8, 1940. [Class 38(v)] A predetermined number of impulses delivered to an electromagnet 32 causes the reciprocation of its armature 36 and the step-by-step rotation of a ratchet wheel carrying a contact arm 22 till the arm engages a selected; contact 16 and so prepares a circuit 17 which is only completed through contacts 73, 74 and 85, 86 when an arm 82 of timing mechanism 83 which has been depressed by the armature 36 is allowed to rise slowly sufficiently to close the contacts 73, 74. The contacts 85, 86 were previously closed by the energization of an electromagnet 56 from a source between lines 105, 107 when contacts 75, 76 were closed by the first actuation of the armature 36. The arm 82 continues to rise after the closure of contacts 73, 74 till after a further time interval the contacts 75. 76 open causing de-energization of magnet 56, opening of contacts 85, 86 and breaking of the selected circuit 17. The de-energization of magnet 56 also causes a check pawl to be moved away from the ratchet wheel so that a spring returns this and the contact arm 22 to starting position. The timing mechanism 83 comprises a train of gearing connected to the arm 82 and which is spring loaded by rachet and pawl mechanism.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US649143XA | 1940-10-08 | 1940-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB649143A true GB649143A (en) | 1951-01-17 |
Family
ID=22059091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6332/48A Expired GB649143A (en) | 1940-10-08 | 1948-02-28 | Impulse operated selector switch for alternating and direct current |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB649143A (en) |
-
1948
- 1948-02-28 GB GB6332/48A patent/GB649143A/en not_active Expired
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